As filed with the Securities and Exchange Commission on September 16, 2013November 23, 2020

Registration No. 333-

          

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

Form FORM S-4

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

 

 

Pioneer Natural Resources Company

(Exact name of registrant as specified in its charter)

 

 

 

Delaware
1311 1311
75-2702753
75-2702753

(State or other jurisdictionOther Jurisdiction of

incorporation or organization)Incorporation)

 

(Primary Standard Industrial

Classification Code Number)

 

(I.R.S. Employer

Identification Number)

5205 N. O’Connor Boulevard

Suite 200777 Hidden Ridge

Irving, Texas 7503975038

(972) 444-9001

(Address, including zip code,Zip Code, and telephone number,Telephone Number, including area code,Area Code, of registrant’s principal executive offices)Registrant’s Principal Executive Offices)

 

 

Mark S. Berg

Executive Vice President and General CounselH. Kleinman

Pioneer Natural Resources Company

5205 N. O’Connor Boulevard

Suite 200777 Hidden Ridge

Irving, Texas 7503975038

(972) 444-9001

(Name, address,Address, including zip code,Zip Code, and telephone number,Telephone Number, including area code,Area Code, of agentAgent for service)Service)

With copies to:

 

Copies to:

Michael D. WortleyJeffrey A. Chapman

Robert L. KimballTull R. Florey

VinsonGibson, Dunn & Elkins L.L.P.Crutcher LLP

2001 Ross Avenue, Suite 37002100

Dallas, Texas 75201-2975TX 75201

(214) 220-7700698-3100

 

G. Michael O’LearyColin Roberts

Andrews KurthParsley Energy, Inc.

303 Colorado Street

Austin, TX 78701

(737) 704-2300

Douglas E. McWilliams

Lande A. Spottswood

Vinson & Elkins LLP

600 Travis,1001 Fannin Street, Suite 43002500

Houston, TexasTX 77002

(713) 220-4360758-2222

 

 

Approximate date of commencement of proposed sale of the securities to the publicpublic:: As soon as practicable after this registration statement becomesis declared effective and upon consummationcompletion of the mergermergers described in the enclosed proxy statement/prospectus.document.

If the securities being registered on this Formform are to bebeing offered in connection with the formation of a holding company and there is compliance with General Instruction G, please check the following box.  ¨

If this Formform is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act of 1933, as amended (the “Securities Act”), check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨

If this Formform is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer” andfiler,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Securities Exchange Act.Act of 1934, as amended (the “Exchange Act”).

 

Large accelerated filer x  Accelerated filer ¨
Non-accelerated filer ¨  (Do not check if a smaller reporting company)  Smaller reporting company ¨
Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

If applicable, place an X in the box to designate the appropriate rule provision relied upon in conducting this transaction:

Exchange Act Rule 13e-4(i) (Cross-Border Issuer Tender Offer)  ¨

Exchange Act Rule 14d-1(d) (Cross-Border Third-Party Tender Offer)  ¨


CALCULATION OF REGISTRATION FEE

 

 

Title of each class of
securities to be registered
 Amount
to be
registered(1)
 

Proposed
maximum

offering price

per unit

 

Proposed
maximum

aggregate
offering price(2)

 Amount of
registration fee(3)

Common stock, par value $0.01 per share

 4,100,000 Not applicable $746,523,447.85 $101,825.80

 

 

 

Title of Each Class of

Securities to be Registered

 

Amount

to be

Registered(1)

 

Proposed

Maximum

Offering Price

Per Share

of Common Stock

 

Proposed

Maximum

Aggregate

Offering Price(2)

 

Amount of

Registration Fee(3)

Common Stock, par value $0.01 per share

 52,149,362 N/A $5,073,316,509 $553,499

 

 

(1)

Represents the estimated maximum number of shares of Pioneer Natural Resources Company (“Pioneer”) common stock, par value $0.01 per share (“Pioneer common stock”), estimated to be issuable upon the completion of Pioneer’s acquisition of Parsley Energy, Inc. (“Parsley”) pursuant to the Registrantmergers described herein. This number is based on 416,528,449, the total number of (1) shares of Parsley Class A common stock, par value $0.01 per share (the “Parsley Class A common stock”), estimated to be issued and outstanding immediately prior to completion of the mergers, including restricted shares and shares issuable upon the exercise or settlement of Parsley stock-based awards outstanding as of November 13, 2020 that are or may become exercisable or issuable upon settlement prior to completion of the mergers and (2) units of Parsley Energy, LLC (the “Parsley LLC units”) estimated to be issued and outstanding as of November 13, 2020 and not held by Parsley, Pioneer or any of their respective subsidiaries, multiplied by 0.1252, the exchange ratio under the merger agreement described in the merger described herein to holders of common units of Pioneer Southwest Energy Partners L.P. (“Pioneer Southwest”) other than Pioneer Natural Resources USA, Inc. (“Pioneer USA”), a wholly-owned subsidiary of the Registrant, which will continue to own common units of Pioneer Southwest following the effective time of the merger.joint proxy statement/prospectus contained herein.

(2)

Estimated solely for the purposes of calculating the registration fee required by Section 6(b) of the Securities Act, and calculated pursuant to Rules 457(f)(1) and 457(c) under the Securities Act. The proposed maximum aggregate offering price of the Registrant’sPioneer common stock was calculated based upon the market value of the Pioneer Southwest common units to be cancelled in the merger in accordance with Rule 457(c) under the Securities Act as follows: the product of (a) $43.86 (the(1) $12.18, the average of the high and low prices per Pioneer Southwestshare of Parsley Class A common unit on September 12, 2013,stock as of November 18, 2020, as quoted on the New York Stock Exchange)Exchange, and (2) 416,528,449, multiplied by (b) 17,022,539, which is the sum of 16,992,500 (thethe maximum number of Pioneer Southwest common units outstanding as of September 12, 2013, that are eligible for exchange into shares of PioneerParsley Class A common stock pursuant toand the merger agreement) and 30,039 (themaximum number of Pioneer Southwest commoneligible Parsley LLC units potentially issuable before consummation ofwhich may be exchanged or converted for the merger pursuant to outstanding awards under Pioneer Southwest’s long-term incentive plan).securities being registered.

(3)Determined in accordance with

The registration fee for the securities registered hereby has been calculated pursuant to Section 6(b) of the Securities Act, at a rate equal to $136.40 per $1,000,000 ofby multiplying the proposed maximum aggregate offering price (pro rated for amounts less than $1,000,000).the securities by 0.0001091.

The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until thisthe Registration Statement shall become effective on such date or dates as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

 

 

 


The information in this preliminaryjoint proxy statement/prospectus is not complete and may be changed. Pioneer Natural Resources Company may not distribute or issue the securities being registered pursuant tooffered by this registration statementjoint proxy statement/prospectus until the registration statement as filed withcontaining this joint proxy statement/prospectus has been declared effective by the Securities and Exchange Commission (of which this preliminaryCommission. This joint proxy statement/prospectus is a part), is effective. This preliminary proxy statement/prospectus isdoes not constitute an offer to sell nor should it be consideredor a solicitation of an offer to buy theany securities described herein in any statejurisdiction where thean offer or salesolicitation is not permitted.

 

PRELIMINARY PROXY STATEMENT/PROSPECTUS — SUBJECT TO COMPLETION,

DATED SEPTEMBER 16, 2013NOVEMBER 23, 2020

 

LOGOLOGO  LOGOLOGO

MERGER PROPOSAL — PROPOSED—YOUR VOTE IS VERY IMPORTANT

On August 9, 2013,behalf of the boards of directors of Pioneer Natural Resources Company (“Pioneer”), Pioneer Natural Resources USA, and Parsley Energy, Inc. (“Pioneer USA”Parsley”), we are pleased to enclose the accompanying joint proxy statement/prospectus relating to the acquisition of Parsley by Pioneer. We are requesting that you take certain actions as a Pioneer or Parsley stockholder.

On October 20, 2020, Pioneer and Parsley entered into an Agreement and Plan of Merger (as amended from time to time, the “merger agreement”) with certain subsidiaries of Pioneer and Parsley, providing for (i) the merger of a direct wholly-owned subsidiary of Pioneer PNR Acquisition Company, LLC (“MergerCo”), a wholly-owned subsidiary of Pioneer, Pioneer Southwest Energy Partners L.P. (“Pioneer Southwest”) and Pioneer Natural Resources GP LLC (“Pioneer Southwest GP”), a wholly-owned subsidiary of Pioneer USA and the general partner of Pioneer Southwest, entered into a merger agreement (the “merger agreement”). Pursuant to the merger agreement, MergerCo will merge with and into Pioneer Southwest (the “merger”),Parsley, with Pioneer SouthwestParsley surviving the merger as a direct wholly-owned subsidiary of Pioneer USA,(the “first merger” and all common units representing limited partner interests inthe surviving entity, the “surviving corporation”), (ii) simultaneously with the first merger, the merger of another direct wholly-owned subsidiary of Pioneer Southwest (“Opco Merger Sub”) with and into Parsley Energy, LLC, a majority-owned subsidiary of Parsley (“Parsley LLC”), with Parsley LLC surviving the merger as a direct and indirect wholly-owned subsidiary of Pioneer Southwest common units”(the “Opco merger”) outstanding at, and (iii) immediately following the effective timefirst merger and the Opco merger, the merger of the surviving corporation with and into a third direct wholly-owned subsidiary of Pioneer (“Merger Sub LLC”), with Merger Sub LLC surviving the merger as a direct wholly-owned subsidiary of Pioneer (the “subsequent merger” and, not owned by Pioneer USAtogether with the first merger, the “integrated mergers” and the integrated mergers and the Opco merger, collectively, the “mergers”).

If the mergers are completed, subject to certain exceptions, each holder of Class A common stock, par value $0.01 per share, of Parsley (the “Parsley Class A common stock”) will be cancelled and converted into the rightentitled to receive 0.2325 of a share0.1252 shares of common stock, par value $0.01 per share, of Pioneer (“Pioneer(the “Pioneer common stock”). No fractional for each of its shares of Parsley Class A common stock and each person or entity holding units representing membership interests in Parsley LLC (each, a “Parsley LLC unit”) will be entitled to receive 0.1252 shares of Pioneer common stock for each of its Parsley LLC units, and each corresponding share of Class B common stock, par value $0.01 per share, of Parsley (the “Parsley Class B common stock” and, together with the Parsley Class A common stock, the “Parsley common stock”) will be issued inautomatically cancelled for no additional consideration, subject to any statutory rights to appraisal pursuant to the merger. In lieuDelaware General Corporation Law solely with respect to the Parsley Class B common stock.

Following the completion of receiving any fractional sharethe mergers, it is anticipated that persons who were stockholders of Pioneer and Parsley immediately prior to the mergers will own approximately 76% and 24% of the combined company, respectively.

Pioneer common stock to which any Pioneer Southwest unitholder would otherwise have been entitled, after aggregating all fractions of shares to which such unitholder would be entitled, any fractional share will be rounded up to a whole share of Pioneer common stock. Pioneer stockholders will continue to own their existing shares of Pioneer common stock.

Based on the estimated number of shares of Pioneer common stock and the estimated number of Pioneer Southwest common units that will be outstanding immediately before the closing of the merger (other than Pioneer Southwest common units owned by Pioneer USA), we estimate that, upon the closing, the number of shares of Pioneer common stock issued in exchange for Pioneer Southwest common units will represent approximately 3% of shares of Pioneer common stock outstanding.

Pioneer Southwest will hold a special meeting of its unitholders in connection with the proposed merger. At the special meeting of Pioneer Southwest unitholders, Pioneer Southwest unitholders will be asked to vote on the proposal to approve the merger agreement and the transactions contemplated thereby (the “merger transactions”), including the merger (the “merger proposal”). The merger proposal will be approved if the holders, as of the record date of the Pioneer Southwest special meeting, of a majority of the outstanding Pioneer Southwest common units vote in favor of the merger proposal at the Pioneer Southwest special meeting. Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP have entered into a voting agreement (the “voting agreement”) pursuant to which Pioneer, Pioneer USA and MergerCo have agreed to vote the Pioneer Southwest common units owned by them in favor of the merger proposal, including the 18,721,200 Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4% of the outstanding Pioneer Southwest common units and therefore constitute a sufficient number of Pioneer Southwest common units to approve the merger proposal at the Pioneer Southwest special meeting.

The conflicts committee (the “Pioneer Southwest Conflicts Committee”) of the Pioneer Southwest GP board of directors (the “Pioneer Southwest GP Board”) unanimously approved the merger agreement and the merger transactions and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the holders of Pioneer Southwest common units who are unaffiliated with Pioneer (the “Pioneer Southwest unaffiliated unitholders”) and Pioneer Southwest. This action of the Pioneer Southwest Conflicts Committee constitutes “Special Approval” of the merger agreement and the merger transactions under Pioneer Southwest’s partnership agreement. The Pioneer Southwest Conflicts Committee recommended that the Pioneer Southwest GP Board make the same approval and determination as the Pioneer Southwest Conflicts Committee. Based in part on this approval and determination, Special Approval and recommendation, the Pioneer Southwest GP Board approved the merger agreement and the merger transactions (such approval being unanimous among the independent directors, with the non-independent directors of Pioneer Southwest GP recusing themselves from the consideration and vote on such approval) and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. The Pioneer Southwest GP Board caused Pioneer Southwest GP to approve the merger agreement and the merger transactions and directed that the merger agreement and the merger transactions be submitted to the Pioneer Southwest unitholders at the Pioneer Southwest special meeting for approval. The Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board recommend that the Pioneer Southwest unitholders vote in favor of the merger proposal.

This proxy statement/prospectus provides you with detailed information about the merger agreement, the proposed merger and related matters. We encourage you to read the entire document carefully.In particular, please read “Risk Factors” beginning on page 35 of this proxy statement/prospectus for a discussion of risks relevant to the merger, Pioneer’s business following the merger, Pioneer’s common stock, Pioneer Southwest’s business and common units if the merger does not occur and United States federal income tax consequences of the merger.

Pioneer’s common stock is listedquoted on the New York Stock Exchange (“NYSE”) under the symbol “PXD,”“PXD”, and Pioneer Southwest’sParsley Class A common units are listedstock is quoted on the NYSE under the symbol “PSE.”“PE”. The last reported sale pricemarket prices of shares of Pioneer’sboth Pioneer common stock onand Parsley Class A common stock will fluctuate before the NYSE onmergers, and you should obtain current stock price quotations for the Pioneer common stock and Parsley Class A common stock.

[Your vote is very important.], 2013, was $[]. The last reported sale price We cannot complete the mergers unless the Pioneer stockholders vote to approve the issuance of Pioneer Southwest’s common unitsstock pursuant to the merger agreement and the Parsley stockholders vote to adopt the merger agreement.

This document is a prospectus relating to the Pioneer common stock to be issued to Parsley Class A stockholders and Parsley LLC unitholders pursuant to the mergers and a joint proxy statement for Pioneer and Parsley to solicit proxies for their respective meetings of stockholders. It contains answers to frequently asked questions and a summary of the important terms of the mergers, the merger agreement and related transactions, followed by a more detailed discussion.

Please carefully read this entire document, including “Risk Factors” beginning on page 26, for a discussion of the NYSE on[risks relating to the mergers and Pioneer following the mergers.], 2013, was $[].

Sincerely,

Scott D. Sheffield

President and Chief Executive Officer

Pioneer Natural Resources Company

Matt Gallagher

President and Chief Executive Officer

Parsley Energy, Inc.

Neither the Securities and Exchange Commission nor any state securities commissionregulatory authority has approved or disapproved of the mergers or the securities to be issued under this joint proxy statement/prospectus or has determined ifpassed upon the adequacy or accuracy of the disclosure in this joint proxy statement/prospectus is truthful or complete.prospectus. Any representation to the contrary is a criminal offense.

All information in this proxy statement/prospectus concerning Pioneer has been furnished by Pioneer. All information in this proxy statement/prospectus concerning Pioneer Southwest has been furnished by Pioneer Southwest.

ThisThe date of the accompanying joint proxy statement/prospectus is dated[], 2013,                ], 2020, and it is first being first mailed or otherwise delivered to Pioneer Southwest unitholdersstockholders and Parsley stockholders on or about[], 2013.                ], 2020.

On behalf of


LOGO

Pioneer Natural Resources Company

777 Hidden Ridge

Irving, Texas 75038

(972) 444-9001

NOTICE OF SPECIAL MEETING OF STOCKHOLDERS

TO BE HELD ON [                ], 2021

To the Pioneer Southwest Conflicts Committee,

Arthur L. Smith

Chairman of the Conflicts Committee of the Board of

DirectorsStockholders of Pioneer Natural Resources GP LLCCompany:


LOGO

Irving, Texas

[], 2013

Notice of Special Meeting of Unitholders

ToYou are cordially invited to attend the Unitholders of Pioneer Southwest Energy Partners L.P.:

Avirtual only special meeting of unitholdersthe stockholders of Pioneer Southwest Energy Partners L.P.Natural Resources Company (“Pioneer Southwest”Pioneer”), which will be held at [    :    ] a.m., Central Time, on [], 2013            ], 2021 via live webcast at []www.virtualshareholdermeeting.com/PXD21SM (the “Pioneer special meeting”), local time, at the offices of Pioneer Southwest, 5205 N. O’Connor Blvd., Suite 200, Irving, Texas 75039, for the following purposes:purpose:

To consider and vote on a proposal to approve the issuance of shares of Pioneer common stock, par value $0.01 per share (“Pioneer common stock”), pursuant to the terms of the Agreement and Plan of Merger, dated as of August 9, 2013, by and among Pioneer Natural Resources Company (“Pioneer”), Pioneer Natural Resources USA, Inc. (“Pioneer USA”), a wholly-owned subsidiary of Pioneer, PNR Acquisition Company, LLC (“MergerCo”), a wholly-owned subsidiary of Pioneer, Pioneer Southwest and Pioneer Natural Resources GP LLC (“Pioneer Southwest GP”), a wholly-owned subsidiary of Pioneer USA and the general partner of Pioneer Southwest, as it may beOctober 20, 2020 (as amended from time to time, (thethe “merger agreement”), by and among Pioneer, Parsley Energy, Inc. (“Parsley”) and certain subsidiaries of Pioneer and Parsley, and other shares of Pioneer common stock reserved for issuance in connection with the transactions contemplated thereby (the “merger transactions”), includingby the merger agreement (collectively, the “stock issuance” and such proposal, the “Pioneer stock issuance proposal”).

Virtual Only Pioneer Special Meeting Due to COVID-19: In light of ongoing public health impacts related to coronavirus (COVID-19), and taking into account the related protocols that federal, state and local governments have implemented, Pioneer’s board of directors (the “merger proposal”“Pioneer board”); has determined that the Pioneer special meeting will be a virtual meeting conducted exclusively via live webcast. There will not be a physical location for the Pioneer special meeting and

you will not be able to attend the meeting in person. The Pioneer board believes that this is the right choice for Pioneer and Pioneer’s stockholders at this time, as it permits stockholders to attend the Pioneer special meeting while safeguarding the health of Pioneer stockholders, the Pioneer board and the Pioneer management team.

To considerHow to Attend the Virtual Pioneer Special Meeting: You can attend the meeting online by visiting www.virtualshareholdermeeting.com/PXD21SM, where you will be able to listen to the meeting live and vote online. To attend, vote and be deemed present in person at the virtual meeting, you will need to log on a proposalto the virtual meeting website at www.virtualshareholdermeeting.com/PXD21SM and enter the 16-digit control number included on your proxy card or voting instruction form.

The meeting webcast will begin promptly at [        :        ] a.m., Central Time. We encourage you to access the meeting prior to the start time. Online check-in will begin at [        :        ] a.m., Central Time, and you should allow ample time for the check-in procedures. For additional information on how you can attend the virtual Pioneer special meeting, please see the instructions beginning on page 40 of this joint proxy statement/prospectus. Whether or not you plan to attend the virtual Pioneer special meeting, we encourage you to vote and submit your proxy in advance of the meeting by Pioneer Southwest GP to adjournone of the methods described on page 43 of this joint proxy statement/prospectus. You may also vote online and examine our stockholder list during the Pioneer Southwest special meeting for any reason (the “adjournment proposal”).

by following instructions provided on the meeting website, which may be accessed using the above web address and the 16-digit control number included on your proxy card or voting instruction form, during the Pioneer Southwestspecial meeting.


Meeting Agenda: Other than the Pioneer stock issuance proposal, Pioneer will transact no other business at the Pioneer special meeting, except such business as may properly be brought before the Pioneer special meeting or any adjournments thereof. At this time, Pioneer Southwest knows of no other matters that will be presented for the consideration of its unitholdersor postponements thereof by or at the special meeting.

The merger proposal will be approved if the holders, as of the record datedirection of the Pioneer Southwestboard in accordance with Pioneer’s bylaws. This joint proxy statement/prospectus, of which this notice is a part, describes the proposal listed above in more detail. Please refer to the attached documents, including the merger agreement and all other annexes and any documents incorporated by reference, for further information with respect to the business to be transacted at the Pioneer special meeting,meeting. You are encouraged to read the entire document carefully before voting. In particular, please see “The Mergers” beginning on page 55 for a description of the transactions contemplated by the merger agreement, including the stock issuance, and “Risk Factors” beginning on page 26 for an explanation of the risks associated with the mergers and the other transactions contemplated by the merger agreement, including the stock issuance.

Required Vote: Approval of the Pioneer stock issuance proposal by the affirmative vote of holders of a majority of the outstandingshares of Pioneer Southwest common units vote in favor ofstock (such holders, the merger proposal“Pioneer stockholders”), present virtually during the Pioneer special meeting or represented by proxy at the Pioneer Southwest special meeting. Failuresmeeting and entitled to vote and abstentions will havethereon, is required to complete the same effectmergers, as a vote againstcontemplated pursuant to the merger proposal. Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP have entered into a voting agreement (the “voting agreement”) pursuant to which Pioneer, Pioneer USA and MergerCo have agreed to vote the Pioneer Southwest common units owned by them in favor of the merger proposal, including the 18,721,200 Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4% of the outstanding Pioneer Southwest common units and therefore constitute a sufficient number of Pioneer Southwest common units to approve the merger proposal at the Pioneer Southwest special meeting.agreement.

The conflicts committee (the “Pioneer Southwest Conflicts Committee”) of the Pioneer Southwest GP board of directors (the “Pioneer Southwest GP Board”) unanimously approved the merger agreement and the merger transactions and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the holders of Pioneer Southwest common units who are unaffiliated with Pioneer (the “Pioneer Southwest unaffiliated unitholders”) and Pioneer Southwest. This action of the Pioneer Southwest Conflicts Committee constitutes “Special Approval” of the merger agreement and the merger transactions under Pioneer Southwest’s partnership agreement.Who Can Vote: The Pioneer Southwest Conflicts Committee recommended that the Pioneer Southwest GP Board make the same approval and determination as the Pioneer Southwest Conflicts Committee. Based in part on this approval and determination, Special Approval and recommendation, the Pioneer Southwest GP Board approved the merger agreement and the merger transactions (such approval being unanimous among the independent directors, with the non-independent directors of Pioneer Southwest GP recusing themselves from the consideration and vote on such approval) and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated


unitholders and Pioneer Southwest. The Pioneer Southwest GP Board caused Pioneer Southwest GP to approve the merger agreement and the merger transactions and directed that the merger agreement and the merger transactions be submitted to the Pioneer Southwest unitholders at the Pioneer Southwest special meeting for approval. The Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board recommend that the Pioneer Southwest unitholders vote in favor of the merger proposal.

Only Pioneer Southwest unitholders of record as ofboard has fixed the close of business on [], 2013, are            ], 2020 as the record date for the determination of the Pioneer stockholders entitled to receive notice of, and to vote at, the Pioneer special meeting andor any adjournments or postponements thereof. Only Pioneer stockholders of record on the special meeting. A listrecord date are entitled to receive notice of, Pioneer Southwest unitholders entitledand to vote at, the Pioneer special meeting will be available for inspection ator any adjournments or postponements thereof. For additional information regarding the Pioneer Southwest’s offices in Irving, Texas, for any purpose relevant to the special meeting, during normal business hoursplease see “Pioneer Special Meeting” beginning on page 40 of this joint proxy statement/prospectus.

The Pioneer board, at a meeting duly called and held, has by unanimous vote (i) determined that the mergers and the other transactions contemplated by the merger agreement were in the best interests of, and were advisable to, Pioneer and the Pioneer stockholders, (ii) approved, adopted and declared advisable the merger agreement and the transactions contemplated thereby, (iii) directed that the Pioneer stock issuance be submitted to Pioneer stockholders for approval and (iv) resolved to recommend that Pioneer stockholders approve the Pioneer stock issuance at a periodduly held meeting of ten days beforePioneer stockholders for such purpose. The Pioneer board unanimously recommends that Pioneer stockholders vote “FOR” the special meetingPioneer stock issuance proposal.

As a Pioneer stockholder, you play an important role in our company by considering and attaking action on these matters. We appreciate the special meeting.time and attention you invest in making thoughtful decisions.

YOUR VOTE IS IMPORTANT. WHETHER OR NOT YOU EXPECT TO ATTEND THE SPECIAL MEETING, PLEASE VOTE IN ONE OF THE FOLLOWING WAYS:IMPORTANT

IfWhether or not you hold your units inplan to attend the namespecial meeting, please submit a proxy or voting instruction card as soon as possible. For specific instructions on voting, please refer to the joint proxy statement/prospectus accompanying this notice of a bank, brokermeeting or other nominee, you should follow the instructions provided by your bank, broker or nominee when voting your Pioneer Southwest common units.

If you hold your units in your own name, you may vote by:

using the toll-free telephone number shown on the proxy card;

using the internet website shown oncard included with the proxy card; or
voting materials.

marking, signing, dating and promptly returning the enclosed proxy card in the postage-paid envelope, which requires no postage if mailed in the United States.

The enclosed proxy statement/prospectus provides a detailed description of the merger and the merger agreement as well as a description of the issuance of shares of Pioneer common stock to Pioneer Southwest unitholders pursuant to the merger agreement. We urge you to read this proxy statement/prospectus, including any documents incorporated by reference and the Annexes, carefully and in its entirety. If you have any questions concerning the mergerPioneer stock issuance proposal, the mergers or this joint proxy statement/prospectus, would like additional copies, or need help voting your shares of Pioneer Southwest common units,stock, please contact Pioneer Southwest’sPioneer’s proxy solicitor or Pioneer Southwest’s Investor Relations Department at:solicitor:

D. F.D.F. King & Co., Inc.

48 Wall Street, 22nd Floor

New York, New YorkNY 10005

Banks and Brokers call:Call Collect: (212) 269-5550

All others call toll-free:Others Call Toll-Free: (800) 758-5880859-8509

Email: pse@dfking.compxd@dfking.com

or


BY ORDER OF THE BOARD OF DIRECTORS,
Thomas J. Murphy
Corporate Secretary
[                ], 2020

Pioneer Southwest


LOGO

Parsley Energy, Partners L.P.Inc.

5205 N. O’Connor Blvd., Suite 200303 Colorado Street

Irving,Austin, Texas 7503978701

Attention: Investor Relations(737) 704-2300

Telephone: (972) 969-4019NOTICE OF SPECIAL MEETING OF STOCKHOLDERS

By orderTO BE HELD ON [                ], 2021

To the Stockholders of Parsley Energy, Inc.:

You are cordially invited to attend the virtual only special meeting of the Boardstockholders of DirectorsParsley Energy, Inc. (“Parsley”), which will be held at [        :        ] a.m., Central Time, on [                ], 2021 via live webcast at www.virtualshareholdermeeting.com/PE21SM (the “Parsley special meeting”), for the following purposes:

1.

To vote on a proposal to approve and adopt the terms of the Agreement and Plan of Merger, dated as of October 20, 2020 (as amended from time to time, the “merger agreement”), by and among Parsley, Pioneer Natural Resources Company (“Pioneer”) and certain subsidiaries of Parsley and Pioneer and the transactions contemplated thereby (the “Parsley merger proposal”).

2.

To vote on a proposal to approve, on a non-binding advisory basis, the compensation that may be paid or become payable to Parsley’s named executive officers that is based on or otherwise relates to the mergers (as defined below) (the “Parsley compensation proposal”).

Virtual Only Parsley Special Meeting Due to COVID-19: In light of Pioneer Natural Resources GP LLC,ongoing public health impacts related to coronavirus (COVID-19), and taking into account the related protocols that federal, state and local governments have implemented, Parsley’s board of directors (the “Parsley board”) has determined that the Parsley special meeting will be a virtual meeting conducted exclusively via live webcast. There will not be a physical location for the Parsley special meeting and you will not be able to attend the meeting in person. The Parsley board and Parsley’s management team believe that this is the right choice for Parsley and Parsley’s stockholders at this time, as it permits stockholders to attend the general partnerParsley special meeting while safeguarding the health of Pioneer Southwest Energy Partners L.P.,Parsley stockholders, the Parsley board and the Parsley management team.

Scott D. SheffieldHow to Attend the Virtual Parsley Special Meeting: You can attend the meeting online by visiting www.virtualshareholdermeeting.com/PE21SM, where you will be able to listen to the meeting live and vote online. To attend, vote and be deemed present in person at the virtual meeting, you will need to log on to the virtual meeting website at www.virtualshareholdermeeting.com/PE21SM and enter the 16-digit control number included on your proxy card or voting instruction form.

Chief Executive OfficerThe meeting webcast will begin promptly at [        :        ] a.m., Central Time. We encourage you to access the meeting prior to the start time. Online check-in will begin at [        :        ] a.m., Central Time, and you should allow ample time for the check-in procedures. For additional information on how you can attend the virtual Parsley special meeting, please see the instructions beginning on page 46 of this joint proxy statement/prospectus. Whether or not you plan to attend the virtual Parsley special meeting, we encourage you to vote and submit your proxy in advance of the meeting by one of the methods described on page 50 of this joint proxy statement/prospectus. You may also vote online and examine our stockholder list during the Parsley special meeting by following instructions provided on the meeting website, which may be accessed using the above web address and the 16-digit control number included on your proxy card or voting instruction form, during the Parsley special meeting.

Pioneer Natural Resources GP LLCMeeting Agenda: Other than the Parsley merger proposal and Parsley compensation proposal, Parsley will transact no business at the Parsley special meeting, except such business as may properly be brought before the


IMPORTANT NOTE ABOUT THIS PROXY STATEMENT/PROSPECTUS

Parsley special meeting or any adjournments or postponements thereof by or at the direction of the Parsley board in accordance with Parsley’s bylaws. This joint proxy statement/prospectus, of which formsthis notice is a part, describes the proposals listed above in more detail. Please refer to the attached documents, including the merger agreement and all other annexes and any documents incorporated by reference, for further information with respect to the business to be transacted at the Parsley special meeting. You are encouraged to read the entire document carefully before voting. In particular, please see “The Mergers” beginning on page 55 for a description of the transactions contemplated by the merger agreement and “Risk Factors” beginning on page 26 for an explanation of the risks associated with the mergers and the other transactions contemplated by the merger agreement.

Required Vote: Approval of the Parsley merger proposal by the affirmative vote of the holders of a registration statementmajority of the outstanding shares of Parsley common stock entitled to vote on Form S-4 filedthe proposal (such holders, the “Parsley stockholders”) is required to complete the mergers, as contemplated pursuant to the merger agreement. Approval of the Parsley compensation proposal requires the affirmative vote of the holders of a majority of the shares of Parsley common stock present virtually during the Parsley special meeting or represented by proxy at the Parsley special meeting and entitled to vote thereon.

Who Can Vote: The Parsley board has fixed the close of business on [                ], 2020 as the record date for the determination of the Parsley stockholders entitled to receive notice of, and to vote at, the Parsley special meeting or any adjournments or postponements thereof. Only Parsley stockholders of record on the record date are entitled to receive notice of, and to vote at, the Parsley special meeting or any adjournments or postponements thereof. For additional information regarding the Parsley special meeting, please see “Parsley Special Meeting” beginning on page 46 of this joint proxy statement/prospectus.

The Parsley board, at a meeting duly called and held, has by unanimous vote (i) declared that the merger agreement and the transactions contemplated thereby (including the integrated mergers (as defined therein)) were fair to, and in the best interests of, Parsley, the Parsley stockholders and the Parsley LLC unitholders, (ii) approved and declared advisable the merger agreement and the transactions contemplated thereby (including the integrated mergers) and (iii) recommended that the Parsley stockholders approve and adopt the merger agreement and the transactions contemplated thereby (including the integrated mergers). The Parsley board unanimously recommends that Parsley stockholders vote FOR the Parsley merger proposal and FOR the Parsley compensation proposal.

As a Parsley stockholder, you play an important role in our company by considering and taking action on these matters. We appreciate the time and attention you invest in making thoughtful decisions.

YOUR VOTE IS IMPORTANT

Whether or not you plan to attend the special meeting, please submit a proxy or voting instruction card as soon as possible. For specific instructions on voting, please refer to the joint proxy statement/prospectus accompanying this notice of meeting or the proxy card included with the proxy voting materials.

If you have any questions concerning the Parsley merger proposal, the Parsley compensation proposal, the mergers or this joint proxy statement/prospectus, would like additional copies, or need help voting your shares of Parsley common stock, please contact Parsley’s proxy solicitor:

Mackenzie Partners, Inc.

1407 Broadway, 27th Floor

New York, NY 10018

Banks and Brokers Call Collect: (212) 929-5500

All Others Call Toll-Free: (800) 322-2885

Email: proxy@mackenziepartners.com


BY ORDER OF THE BOARD OF DIRECTORS,
Matt Gallagher
President and Chief Executive Officer
[                ], 2020


ADDITIONAL INFORMATION

Both Pioneer and Parsley file annual, quarterly and current reports, proxy statements, and other business and financial information with the Securities and Exchange Commission (the “SEC”), constitutes electronically, and the SEC maintains a website located at www.sec.gov containing this information. You can also obtain these documents, free of charge, from Pioneer at www.pxd.com and from Parsley at www.parsleyenergy.com, as applicable. The information contained on, or that may be accessed through, Pioneer’s and Parsley’s websites is not incorporated by reference into, and is not a part of, this joint proxy statement/prospectus.

Pioneer has filed a registration statement of Pioneer Southwest under the Securities Exchange Act of 1934 (the “Exchange Act”)on Form S-4 with respect to the solicitationshares of proxiesPioneer common stock to be issued in the mergers or reserved for issuance in connection with the mergers, of which this joint proxy statement/prospectus forms a part. This joint proxy statement/prospectus constitutes the prospectus of Pioneer filed as part of the registration statement. As permitted by SEC rules, this joint proxy statement/prospectus does not contain all of the information included in the registration statement or in the exhibits or schedules to the registration statement. You may read and copy the registration statement, including any amendments, schedules, and exhibits, at the SEC’s website mentioned above. Statements contained in this joint proxy statement/prospectus as to the contents of any contract or other documents referred to in this joint proxy statement/prospectus are not necessarily complete. In each case, you should refer to the copy of the applicable agreement or other document filed as an exhibit to the registration statement.

This joint proxy statement/prospectus incorporates important business and financial information about Pioneer and Parsley from documents that are not attached to this joint proxy statement/prospectus. This information is available to you without charge upon your request. You can obtain the documents incorporated by reference into this joint proxy statement/prospectus, including copies of financial statements and management’s discussion and analysis, free of charge by requesting them in writing or by telephone from the appropriate company or its proxy solicitor at the following addresses and telephone numbers:

For Pioneer stockholders:For Parsley stockholders:

Pioneer Natural Resources Company

Attn: Investor Relations

777 Hidden Ridge

Irving, Texas 75038

(972) 969-4019

D.F. King & Co., Inc.

48 Wall Street, 22nd Floor

New York, NY 10005

Banks and Brokers Call Collect: (212) 269-5550

All Others Call Toll-Free: (800) 859-8509

Email: pxd@dfking.com

Parsley Energy, Inc.

Attn: Investor Relations

303 Colorado Street

Austin, Texas 78701

(737) 704-2300

Mackenzie Partners, Inc.

1407 Broadway, 27th Floor

New York, NY 10018

Banks and Brokers Call Collect: (212) 929-5500

All Others Call Toll-Free: (800) 322-2885

Email: proxy@mackenziepartners.com

If you would like to request any documents, please do so by [            ], 2021, which is five business days prior to the date of the Pioneer special meeting and the Parsley special meeting, in order to receive them before the applicable meeting.

For a more detailed description of Pioneer Southwest unitholders to, among other things, approve the merger proposal. Thisinformation incorporated by reference into this joint proxy statement/prospectus is alsoand how you may obtain it, please see “Where You Can Find More Information.”


ABOUT THIS JOINT PROXY STATEMENT/PROSPECTUS

This joint proxy statement/prospectus, which forms part of the registration statement on Form S-4 filed with the SEC by Pioneer, constitutes a prospectus of Pioneer under the Securities Act of 1933, as amended (the “Securities Act”) for, with respect to the shares of Pioneer common stock issuable to Parsley Class A stockholders and Parsley LLC unitholders in connection with the mergers. This joint proxy statement/prospectus also constitutes a joint proxy statement for both Pioneer and Parsley under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). This joint proxy statement/prospectus also constitutes a notice of meeting with respect to the Pioneer special meeting and a notice of meeting with respect to the Parsley special meeting.

You should rely only on the information contained in or incorporated by reference into this joint proxy statement/prospectus. No one has been authorized to provide you with information that is different from that contained in, or incorporated by reference into, this joint proxy statement/prospectus. This joint proxy statement/prospectus is dated [                ], 2020, and you should assume that the information contained in this joint proxy statement/prospectus is accurate only as of such date. You should also assume that the information incorporated by reference into this joint proxy statement/prospectus is only accurate as of the date of such information. Neither the mailing of this joint proxy statement/prospectus to Pioneer stockholders or Parsley stockholders nor the issuance by Pioneer of shares of Pioneer common stock pursuant to the merger agreement will create any implication to the contrary.

This joint proxy statement/prospectus does not constitute an offer to sell, or a solicitation of an offer to buy, any securities, or the solicitation of a proxy in any jurisdiction to or from any person to whom it is unlawful to make any such offer or solicitation in such jurisdiction. Information contained in this joint proxy statement/prospectus regarding Pioneer has been provided by Pioneer, and information contained in this joint proxy statement/prospectus regarding Parsley has been provided by Parsley.


GLOSSARY

The following terms have the following meanings in this joint proxy statement/prospectus:

“bylaws” means, with respect to Pioneer, the Sixth Amended and Restated Bylaws of Pioneer and, with respect to Parsley, the Amended and Restated Bylaws of Parsley, in each case as amended;

“certificate of incorporation” means, with respect to Pioneer, the Amended and Restated Certificate of Incorporation of Pioneer and, with respect to Parsley, the Amended and Restated Certificate of Incorporation of Parsley, in each case as amended;

“closing date” means the date on which the effective time occurs;

“effective time” means the effective time of the first merger;

“eligible Parsley LLC unit” means each Parsley LLC unit issued and outstanding immediately prior to the effective time that is eligible for conversion into Pioneer common stock in accordance with the terms of the merger agreement;

“eligible share of Parsley Class A common stock” means each share of Parsley Class A common stock issued and outstanding immediately prior to the effective time that is eligible for conversion into Pioneer common stock in accordance with the terms of the merger agreement;

“exchange ratio” means the ratio of 0.1252 shares of Pioneer common stock per issued and outstanding share of Parsley Class A common stock that will be issued to holders of eligible shares of Parsley Class A common stock in connection with the first merger and the ratio of 0.1252 shares of Pioneer Southwest unitholderscommon stock per issued and outstanding Parsley LLC unit that will be issued to holders of eligible Parsley LLC units in connection with the Opco merger;

“first merger” means the merger of Merger Sub Inc. with and into Parsley pursuant to the merger agreement.agreement, with Parsley surviving the merger as the surviving corporation;

“free cash flow,” a non-GAAP financial measure, means, except as otherwise noted herein, with respect to Pioneer, net cash provided by operating activities, adjusted for changes in operating assets and liabilities, less capital expenditures and, with respect to Parsley, net cash provided by operating activities before changes in operating assets and liabilities, net of acquisitions and acquisition and cash restructuring costs related to the acquisition of Jagged Peak Energy Inc. (“Jagged Peak”), less accrual-based development capital expenditures;

“GAAP” means accounting principles generally accepted in the United States of America;

“integrated mergers” means the first merger and the subsequent merger, collectively;

“merger agreement” means the Agreement and Plan of Merger, dated as of October 20, 2020, by and among Pioneer, Merger Sub Inc., Merger Sub LLC, Opco Merger Sub, Parsley and Parsley LLC, as amended from time to time;

“Merger Sub Inc.” means Pearl First Merger Sub Inc., a Delaware corporation and direct wholly-owned subsidiary of Pioneer;

“Merger Sub LLC” means Pearl Second Merger Sub LLC, a Delaware limited liability company and direct wholly-owned subsidiary of Pioneer;

“mergers” means the first merger, the Opco merger and the subsequent merger, collectively;

“Opco merger” means the merger of Opco Merger Sub with and into Parsley LLC pursuant to the merger agreement, with Parsley LLC surviving the merger as the surviving company;

“Opco Merger Sub” means Pearl Opco Merger Sub LLC, a Delaware limited liability company and direct wholly-owned subsidiary of Pioneer;

“Parsley” means Parsley Energy, Inc., a Delaware corporation;

“Parsley board” means the Parsley board of directors;

As permitted under


“Parsley Class A common stock” means the rulesClass A common stock, par value $0.01 per share, of Parsley;

“Parsley Class A stockholders” means the holders of Parsley Class A common stock;

“Parsley Class B common stock” means the Class B common stock, par value $0.01 per share, of Parsley;

“Parsley Class B stockholders” means the holders of Parsley Class B common stock;

“Parsley common stock” means Parsley Class A common stock and Parsley Class B common stock, collectively;

“Parsley LLC” means Parsley Energy, LLC, a majority-owned subsidiary of Parsley;

“Parsley LLC stapled unit” means each Parsley LLC unit, together with its corresponding share of Parsley Class B common stock;

“Parsley LLC units” means the units representing membership interests in Parsley LLC;

“Parsley LLC unitholders” means the holders of Parsley LLC units;

“Parsley special meeting” means the meeting of the SEC, this proxy statement/prospectus incorporates by reference important business and financial information about Pioneer and Pioneer Southwest from other documents filedParsley stockholders in connection with the SEC that are not included inmergers, as may be adjourned or delivered with this proxy statement/prospectus. Please read “Where You Can Find More Information” beginning on page 133. You can obtain anypostponed from time to time;

“Parsley stockholders” means the holders of the documents incorporated by reference into this proxy statement/prospectus from the SEC’s website at http://www.sec.gov. This information is also available to you without charge upon your request in writing or by telephone from Pioneer and Pioneer Southwest at the following address and telephone number:Parsley common stock;

“Pioneer” means Pioneer Natural Resources Company, a Delaware corporation;

Pioneer Southwest Energy Partners L.P.

5205 N. O’Connor Blvd., Suite 200

Irving, Texas 75039

Attention: Investor Relations

Telephone: (972) 969-4019

Please note that copiesboard” means the Pioneer board of directors;

“Pioneer common stock” means the documents provided to you will not include exhibits, unlesscommon stock, par value $0.01 per share, of Pioneer;

“Pioneer special meeting” means the exhibits are specifically incorporated by reference into those documents or this proxy statement/prospectus.

You may obtain certain of these documents at Pioneer’s website, www.pxd.com, by selecting “Investors” and then selecting “SEC Filings,” and at Pioneer Southwest’s website, www.pioneersouthwest.com, by selecting “Investors” and then selecting “SEC Filings.” Information contained on Pioneer’s or Pioneer Southwest’s website is expressly not incorporated by reference into this proxy statement/prospectus.

In order to receive timely delivery of requested documents in advancemeeting of the Pioneer Southweststockholders in connection with the mergers, as may be adjourned or postponed from time to time;

“Pioneer stockholders” means the holders of Pioneer common stock;

“special meetings” means the Pioneer special meeting your request should be received no later than [], 2013. If you request any documents, Pioneer or Pioneer Southwest will mail them to you by first class mail or another equally promptand the Parsley special meeting, collectively;

“subsequent merger” means within one business day after receipt of your request.

Pioneer and Pioneer Southwest have not authorized anyone to give any information or make any representation about the merger Pioneer or Pioneer Southwest that is different from, or in additionof Parsley with and into Merger Sub LLC pursuant to the information containedmerger agreement, with Merger Sub LLC surviving the merger as a direct wholly-owned subsidiary of Pioneer;

“surviving corporation” means Parsley as the surviving entity of the first merger;

“tax receivable agreement” or “TRA” means the Tax Receivable Agreement, dated May 29, 2014, among Parsley LLC and certain current or former members of Parsley LLC, as amended;

“TRA amendment” means that certain amendment to the tax receivable agreement, dated as of October 20, 2020, by and among Parsley, Bryan Sheffield and certain other TRA holders;

“TRA holders” means Messrs. Bryan Sheffield, Matt Gallagher, Ryan Dalton, Mike Hinson and certain other current or former members of Parsley LLC that are parties to the tax receivable agreement; and

“TRA termination payments” means the lump-sum payments due to the TRA holders in connection with a change of control event under the tax receivable agreement equal to the present value (determined by applying a discount rate of one-year LIBOR plus 3%) of the hypothetical future payments that could be required to be paid under the tax receivable agreement, which lump-sum payments will be calculated in a manner consistent with the methodology specified in the TRA amendment and paid to the TRA holders in connection with the termination of the tax receivable agreement immediately after the effective time.

All currency amounts referenced in this joint proxy statement/prospectus or in any of the materials that have been incorporated by reference into this proxy statement/prospectus. Therefore, if anyone distributes any such information, you should not rely on it. If you are in a jurisdiction where offers to exchange or sell or solicitations of offers to exchange or purchase the securities offered by this proxy statement/prospectus or the solicitation of proxies is unlawful, or if you are a person to whom it is unlawful to direct these types of activities, then the offer presented in this proxy statement/prospectus does not extend to you. The information contained in this proxy statement/prospectus speaks only as of the date of this proxy statement/prospectus or, in the case of information in a document incorporated by reference, as of the date of such document, unless the information specifically indicates that another date applies. All information in this proxy statement/prospectus concerning Pioneer has been furnished by Pioneer. All information in this proxy statement/prospectus concerning Pioneer Southwest has been furnished by Pioneer Southwest.U.S. dollars.


PROXY STATEMENT/PROSPECTUS

TABLE OF CONTENTS

 

DEFINITIONSQUESTIONS AND ANSWERS ABOUT THE MEETINGS

iv

SUMMARY

   1 

QUESTIONS AND ANSWERS ABOUT THE MERGER AND THE PIONEER SOUTHWEST SPECIAL MEETINGThe Parties

1

The Mergers

2

Pioneer Special Meeting

2

Parsley Special Meeting

   4 

SUMMARYOpinions of Pioneer’s Financial Advisors

6

Opinions of Parsley’s Financial Advisors

7

Interests of Certain Parsley Directors and Executive Officers in the Mergers

8

Board of Directors and Management of Pioneer Following Completion of the Mergers

9

Appraisal Rights or Dissenters’ Rights

9

Material U.S. Federal Income Tax Consequences

9

Accounting Treatment of the Mergers

10

Regulatory Approvals

10

Treatment of Parsley Equity-Based Awards

   11 

The Merger Parties’ Businesses

11

RelationshipListing of Pioneer Common Stock; Delisting and Pioneer SouthwestDeregistration of Parsley Class A Common Stock

   12 

Structure of the MergerNo Solicitation; Recommendations

   12 

VotingConditions Precedent to the Mergers

12

Termination of the Merger Agreement

   13 

DirectorsTermination Fees and Executive Officers of Pioneer Following the Merger

13

Market Prices of Shares of Pioneer Common Stock and Pioneer Southwest Common Units Before Announcement of the Proposed Merger

13

Pioneer Southwest Special Meeting

13

Recommendation to Pioneer Southwest Unitholders

14

Pioneer Southwest’s Reasons for the Merger

14

Opinion of the Pioneer Southwest Conflicts Committee’s Financial Advisor

14

Certain Relationships; Interests of Certain Persons in the MergerExpense Reimbursement

   15 

The Merger AgreementSpecific Performance

   1516 

Federal Income Tax ConsequencesClosing and Effective Time of the MergerMergers

16

Comparison of Equityholder Rights

17

Risk Factors

17

SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF PIONEER

18

SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF PARSLEY

19

SUMMARY UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL DATA

   20 

Other Information Related to the MergerSUMMARY PRO FORMA COMBINED OIL, NGL AND GAS RESERVE AND PRODUCTION DATA

   2021 

Summary of Risk FactorsUNAUDITED COMPARATIVE PER SHARE DATA

   22 

Organizational ChartMARKET PRICE INFORMATION

   23 

Selected Historical and Pro Forma Financial and Operating Information of Pioneer and Pioneer Southwest

25

Comparative Per Share and Per Unit Information

30

Market Prices and Dividend and Distribution Information

31

SPECIAL NOTECAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

   3324 

RISK FACTORS

   3526 

Risks RelatedRelating to the MergerMergers

   3526 

Risks RelatedRelating to Pioneer’s Business AfterPioneer Following the MergerMergers

37

Other Risks Relating to Pioneer and Parsley

39

PIONEER SPECIAL MEETING

   40 

Risks Related to Pioneer’s Common StockGeneral

   40 

Risks Related toDate, Time and Place of the Pioneer Southwest’s BusinessSpecial Meeting

40

Purpose of the Pioneer Special Meeting

40

Recommendation of the Pioneer Board

40

Voting by Directors and Common Units ifExecutive Officers

40

Attendance at the Merger Does Not OccurPioneer Special Meeting

40

Record Date

   41 

Tax Risks Related toParticipants in the MergerPioneer Natural Resources USA, Inc. 401(k) and Matching Plan

41

Outstanding Shares as of Record Date and Voting Rights of Pioneer Stockholders

41

Stockholder List

41

Quorum; Abstentions and Broker  Non-Votes

   42 

THE PIONEER SOUTHWEST SPECIAL MEETINGAdjournment

42

Vote Required

42

i


How to Vote

42

Proxies and Revocation

   43 

General Information About the Pioneer Southwest Special MeetingSolicitation of Proxies

   4344 

Voting ProceduresOther Matters

44

Questions and Additional Information

   44 

THE MERGERPIONEER STOCK ISSUANCE PROPOSAL

45

PARSLEY SPECIAL MEETING

   46 

General Description of the Merger

   46 

BackgroundDate, Time and Place of the MergerParsley Special Meeting

46

Purposes of the Parsley Special Meeting

46

Recommendation of the Parsley Board

46

The Parsley Compensation Proposal

46

Voting by Directors and Executive Officers

   47 

Voting and Support Agreement with Quantum

47

Voting and Support Agreement with Bryan Sheffield

48

Attendance at the Parsley Special Meeting

48

Record Date

49

Outstanding Shares as of Record Date and Voting Rights of Parsley Stockholders

49

Stockholder List

49

Quorum; Abstentions and Broker  Non-Votes

49

Adjournment

49

Vote Required

50

How to Vote

50

Proxies and Revocation

51

Solicitation of Proxies

52

Other Matters

52

Questions and Additional Information

52

THE PARSLEY MERGER PROPOSAL

53

THE PARSLEY COMPENSATION PROPOSAL

54

THE MERGERS

55

Background of the Mergers

55

Recommendation of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board and Reasons for the MergerMergers

   6072 

Pioneer’sRecommendation of the Parsley Board and Reasons for the Merger

63

Unaudited Financial Projections of Pioneer and Pioneer Southwest

64

Opinion of the Pioneer Southwest Conflicts Committee’s Financial Advisor

66

No Appraisal RightsMergers

   76 

AntitrustCertain Pioneer Unaudited Prospective Financial and Regulatory MattersOperating Information

   7681

Certain Parsley Unaudited Prospective Financial and Operating Information

86

Opinions of Pioneer’s Financial Advisors

92

Opinions of Parsley’s Financial Advisors

113

Interests of Certain Parsley Directors and Executive Officers in the Mergers

129

Share Ownership of Directors, Executive Officers and Certain Beneficial Owners of Parsley

141

Board of Directors and Management of Pioneer Following Completion of the Mergers

144

Material U.S. Federal Income Tax Consequences

144

Accounting Treatment of the Mergers

149

Regulatory Approvals

149

Exchange of Shares

150

Treatment of Indebtedness

150

Dividend Policy

150 

Listing of Pioneer Common Stock to be Issued in the Merger;Stock; Delisting and Deregistration of Pioneer SouthwestParsley Class A Common UnitsStock

   76151 

Accounting TreatmentAppraisal Rights or Dissenters’ Rights

   76

i


Pending Litigation

76

Voting Agreement

77151 

THE MERGER AGREEMENT

   78156 

Structure ofExplanatory Note Regarding the Merger and Related TransactionsAgreement

   78156 

WhenTerms of the Mergers; Merger Becomes EffectiveConsideration

   79156 

EffectClosing and Effective Time of Merger on Outstanding Pioneer Southwest Common Units and Other Intereststhe Mergers

   79157

ii


Treatment of Parsley Equity-Based Awards

157 

Exchange of Certificates; No Fractional Sharesand Payment Procedures

   80

Actions Pending the Merger

83

Conditions to the Merger

86158 

Representations and Warranties

   88159 

Definition of Material Adverse Effect

161

Conduct of Business

162

No Solicitation; Recommendations

166

Efforts to Hold the Pioneer and Parsley Special Meetings

169

Efforts to Close the Mergers

171

Indemnification, Exculpation and Insurance

171

Employee and Employment Benefit Matters

171

Other Covenants

   89172 

Fees and ExpensesConditions Precedent to the Mergers

   99173 

EffectTermination of Terminationthe Merger Agreement

   99174 

No Third Party BeneficiariesTermination Fees and Expense Reimbursement

   100175

Amendments and Waivers

177 

Specific Performance

   100

Waiver and Amendment

100177 

Governing Law

   100177 

THE MERGER PARTIES’ BUSINESSESINFORMATION ABOUT PIONEER

   101178 

Pioneer’s BusinessINFORMATION ABOUT PARSLEY

   101179 

Pioneer Southwest’s BusinessUNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

   101

CERTAIN RELATIONSHIPS; INTERESTS OF CERTAIN PERSONS IN THE MERGER

103

Relationship of Pioneer and Pioneer Southwest

103

Interests of Directors and Executive Officers in the Merger

107180 

COMPARISON OF THEEQUITYHOLDER RIGHTS OF PIONEER STOCKHOLDERS AND PIONEER SOUTHWEST UNITHOLDERS

   111195 

Purpose and TermRights of ExistenceParsley LLC Unitholders

   111195 

Authorized Equity Securities

112

Dividends and Distributions

112

Merger, Sale or Other DispositionComparison of Assets

113

Management

114

Management Duties and Liability

115

Indemnification

117

Classification of the Board of Directors; Election and Removal of Directors

119

Limited Liability

120

Merger of Parent Entity and Subsidiaries; Limited CallStockholder Rights

   120

Preemptive Rights

121

Amendment of Organizational Documents

121

Dissolution and Liquidation

124

Meetings; Voting; Voting Rights

125

Liquidity, Marketability and Transfers of Shares of Stock/Units

126

Anti-Takeover Provisions

127

Tax Information

127

MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES OF THE MERGER

129

General

129

Recapture

130

At-Risk and Passive Activity Loss Rules

130

Allocations

131

Tax Withholding

131

PIONEER SOUTHWEST UNITHOLDER PROPOSALS

132

OTHER MATTERS

132195 

LEGAL MATTERS

   132205 

EXPERTS

   132205 

ii


Pioneer Natural Resources Company

205

Parsley Energy, Inc.

205

STOCKHOLDER PROPOSALS

206

Pioneer

206

Parsley

208

HOUSEHOLDING OF PROXY MATERIALS

209

WHERE YOU CAN FIND MORE INFORMATION

   133209 

Pioneer’s Filings (SEC File No. 001-13245)

134

Pioneer Southwest’s Filings (SEC File No. 001-33676)

134

INDEX TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

F-1

ANNEX A — Agreement and Plan of Merger dated as of August 9, 2013A: AGREEMENT AND PLAN OF MERGER

   A-1 

ANNEX B — Opinion of the Pioneer Southwest Conflicts Committee’s Financial AdvisorB: OPINION OF GOLDMAN, SACHS & CO. LLC

   B-1 

ANNEX C: OPINION OF MORGAN STANLEY & CO. LLC

C-1

ANNEX D: OPINION OF CREDIT SUISSE SECURITIES (USA) LLC

D-1

ANNEX E: OPINION OF WELLS FARGO SECURITIES, LLC

E-1
ANNEX F: SECTION 262 OF THE GENERAL CORPORATION LAW OF THE STATE OF DELAWAREF-1

ANNEX G: VOTING AND SUPPORT AGREEMENT (QUANTUM)

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ANNEX H: VOTING AND SUPPORT AGREEMENT (BRYAN SHEFFIELD)

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DEFINITIONS

The following terms have the meanings set forth below for purposes of this proxy statement/prospectus, unless the context otherwise indicates:

“adjournment proposal” means the proposal by Pioneer Southwest GP to adjourn the Pioneer Southwest special meeting for any reason.

“Andrews Kurth” means the law firm of Andrews Kurth LLP, counsel to the Pioneer Southwest Conflicts Committee.

“Bbl” means a standard barrel containing 42 United States gallons.

“BOE” means a barrel of oil equivalent and is a standard convention used to express oil and gas volumes on a comparable oil equivalent basis. Gas equivalents are determined under the relative energy content method by using the ratio of 6.0 Mcf of gas to 1.0 Bbl of oil or NGL.

“BOEPD” means BOE per day.

“COPAS” means the Council of Petroleum Accountants Societies.

“Evercore” means Evercore Group L.L.C., financial advisor to the Pioneer Southwest Conflicts Committee.

“Exchange Act” means the Securities Exchange Act of 1934.

“exchange ratio” means 0.2325 of a share of Pioneer common stock per Pioneer Southwest common unit, the consideration for the merger.

“GAAP” means accounting principles that are generally accepted in the United States of America.

“Mcf” means one thousand cubic feet and is a measure of gas volume.

“merger” means, as contemplated by the merger agreement, the proposed merger of MergerCo with and into Pioneer Southwest with Pioneer Southwest surviving the merger as an indirect wholly-owned subsidiary of Pioneer, and all Pioneer Southwest common units outstanding at the effective time of the merger and not owned by Pioneer USA being cancelled and converted into the right to receive 0.2325 of a share of Pioneer common stock per Pioneer Southwest common unit.

“merger agreement” means that certain Agreement and Plan of Merger dated as of August 9, 2013, by and among Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP, as it may be amended from time to time, according to which the parties thereto have agreed to consummate the merger transactions.

“merger proposal” means the proposal to approve the merger agreement and the merger transactions, to be considered for a vote of the Pioneer Southwest unitholders at the Pioneer Southwest special meeting.

“merger transactions” means the transactions contemplated by the merger agreement, including the merger.

“MergerCo” means PNR Acquisition Company, LLC, a wholly-owned subsidiary of Pioneer.

“Morris Nichols” means the law firm of Morris, Nichols, Arsht & Tunnell LLP, Delaware counsel to Pioneer.

“MTM” means mark-to-market and is a method of accounting.

“NGL” means natural gas liquid.

“NYSE” means the New York Stock Exchange.

“PDP” means proved developed producing reserves.

“Pioneer” means Pioneer Natural Resources Company.

“Pioneer Board” means the board of directors of Pioneer.

“Pioneer common stock” or “Pioneer’s common stock” means the common stock of Pioneer, par value $0.01.

“Pioneer Southwest” means Pioneer Southwest Energy Partners L.P.

“Pioneer Southwest common units” or “Pioneer Southwest’s common units” means the common units of Pioneer Southwest representing limited partner interests in Pioneer Southwest.

“Pioneer Southwest Conflicts Committee” means the conflicts committee of the Pioneer Southwest GP Board.

“Pioneer Southwest GP” means Pioneer Natural Resources GP LLC, the general partner of Pioneer Southwest and a wholly-owned subsidiary of Pioneer USA.

“Pioneer Southwest GP Board” means the board of directors of Pioneer Southwest GP.

“Pioneer Southwest’s partnership agreement” or the “Pioneer Southwest partnership agreement” means the First Amended and Restated Agreement of Limited Partnership of Pioneer Southwest dated as of May 6, 2008, as amended from time to time.

“Pioneer Southwest special meeting” or “special meeting” means the special meeting of Pioneer Southwest unitholders described in this proxy statement/prospectus at which the Pioneer Southwest unitholders will vote on the merger proposal.

“Pioneer Southwest unaffiliated unitholders” means the Pioneer Southwest unitholders other than Pioneer and its affiliates, including Pioneer USA.

“Pioneer Southwest unitholders” means the holders of Pioneer Southwest common units.

“Pioneer Southwest unitholder approval” means approval of the merger proposal at the Pioneer Southwest special meeting by the holders, as of the record date of the Pioneer Southwest special meeting, of a majority of the outstanding Pioneer Southwest common units.

“Pioneer USA” means Pioneer Natural Resources USA, Inc., a wholly-owned subsidiary of Pioneer.

“proved reserves” means the quantities of oil and gas, which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically producible – from a given date forward, from known reservoirs, and under existing economic conditions, operating methods, and government regulations – prior to the time at which contracts providing the right to operate expire, unless evidence indicates that renewal is reasonably certain, regardless of whether deterministic or probabilistic methods are used for the estimation. The project to extract the hydrocarbons must have commenced or the operator must be reasonably certain that it will commence the project within a reasonable time.

(i) The area of the reservoir considered as proved includes: (A) The area identified by drilling and limited by fluid contacts, if any, and (B) Adjacent undrilled portions of the reservoir that can, with reasonable certainty, be judged to be continuous with it and to contain economically producible oil or gas on the basis of available geoscience and engineering data.

(ii) In the absence of data on fluid contacts, proved quantities in a reservoir are limited by the lowest known hydrocarbons as seen in a well penetration unless geoscience, engineering, or performance data and reliable technology establishes a lower contact with reasonable certainty.

(iii) Where direct observation from well penetrations has defined a highest known oil elevation and the potential exists for an associated gas cap, proved oil reserves may be assigned in the structurally higher portions of the reservoir only if geoscience, engineering, or performance data and reliable technology establish the higher contact with reasonable certainty.

(iv) Reserves which can be produced economically through application of improved recovery techniques (including, but not limited to, fluid injection) are included in the proved classification when: (A) Successful testing by a pilot project in an area of the reservoir with properties no more favorable than in the reservoir as a whole, the operation of an installed program in the reservoir or an analogous reservoir, or other evidence using reliable technology establishes the reasonable certainty of the engineering analysis on which the project or program was based; and (B) The project has been approved for development by all necessary parties and entities, including governmental entities.

(v) Existing economic conditions include prices and costs at which economic producibility from a reservoir is to be determined. The price shall be the average during the 12-month period prior to the ending date of the period covered by the report, determined as an unweighted arithmetic average of the first-day-of-the-month price for each month within such period, unless prices are defined by contractual arrangements, excluding escalations based upon future conditions.

“Richards Layton” means Richards, Layton & Finger, P.A., Delaware counsel to the Pioneer Southwest Conflicts Committee.

“Russell K. Hall” means Russell K. Hall & Associates, Inc., reserve engineer for the Pioneer Southwest Conflicts Committee.

“SEC” means the United States Securities and Exchange Commission.

“Securities Act” means the Securities Act of 1933.

“U.S.” means United States.

“Vinson & Elkins” means the law firm of Vinson & Elkins L.L.P., counsel to Pioneer.

“voting agreement” means that certain voting agreement dated as of August 9, 2013, by and among Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP, as it may be amended from time to time, according to which Pioneer, Pioneer USA and MergerCo have agreed to vote the Pioneer Southwest common units owned by them in favor of the merger proposal, including the 18,721,200 Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4% of the outstanding Pioneer Southwest common units.

QUESTIONS AND ANSWERS ABOUT THE MERGER AND THE PIONEER SOUTHWEST SPECIAL MEETINGMEETINGS

Important Information and Risks. The following are brief answers to some questions that you may have regarding the merger proposalmergers, the issuance of shares of Pioneer common stock to Parsley Class A stockholders and Parsley LLC unitholders in connection with the mergers, and other matters being considered at the Pioneer Southwest special meeting. You shouldmeeting and the Parsley special meeting and the answers to those questions. Pioneer and Parsley urge you to carefully read and consider carefully the remainderentirety of this joint proxy statement/prospectus, including the “Risk Factors” beginning on page 35annexes hereto and the attached Annexes,information incorporated by reference herein, because the information in this section does not provide all of the information that might be important to you. Additional important informationyou with respect to the mergers, the issuance of shares of Pioneer common stock in connection with the mergers, and risk factors are also contained in the documents incorporated by reference into this proxy statement/prospectus. Please read “Where You Can Find More Information” beginning on page 133.other matters being considered at the Pioneer special meeting and the Parsley special meeting.

 

Q:What is the proposed transaction?

Why am I receiving this joint proxy statement/prospectus?

 

A:

You are receiving this joint proxy statement/prospectus because Pioneer and Parsley have entered into the merger agreement, pursuant to which, among other things, on the terms and subject to the conditions included in the merger agreement, Pioneer Southwest havehas agreed that Pioneer willto acquire Pioneer SouthwestParsley by merging MergerCo,means of (i) the merger of Merger Sub Inc. with and into Parsley, with Parsley surviving the merger as a direct wholly-owned subsidiary of Pioneer, (ii) simultaneously with the first merger, the merger of Opco Merger Sub with and into Pioneer SouthwestParsley LLC, with Pioneer SouthwestParsley LLC surviving the merger underas a direct and indirect wholly-owned subsidiary of Pioneer, and (iii) immediately following the first merger and the Opco merger, the merger of the surviving corporation with and into Merger Sub LLC, with Merger Sub LLC surviving the merger as a direct wholly-owned subsidiary of Pioneer. Your vote is required in connection with the mergers. The merger agreement, which governs the terms of the mergers, is attached to this joint proxy statement/prospectus as Annex A.

In order to complete the mergers, and in accordance with the rules of the New York Stock Exchange (the “NYSE”), Pioneer stockholders must approve the issuance of shares of Pioneer common stock in the mergers and other shares of Pioneer common stock reserved for issuance in connection with the mergers, in each case pursuant to the terms of the merger agreement (the “stock issuance” and such proposal, the “Pioneer stock issuance proposal”). Approval of the Pioneer stock issuance proposal requires the affirmative vote of holders of a majority of the shares of Pioneer common stock present virtually during the Pioneer special meeting or represented by proxy at the Pioneer special meeting and entitled to vote thereon.

Also, in order to complete the mergers, and in accordance with the Delaware General Corporation Law (the “DGCL”), Parsley stockholders must approve and adopt the merger agreement and the transactions contemplated thereby (including the integrated mergers) (the “Parsley merger proposal”). Approval of the Parsley merger proposal requires the affirmative vote of the holders of a majority of the outstanding shares of Parsley common stock entitled to vote on the proposal. In addition, Parsley’s stockholders will be asked to approve, on a non-binding advisory basis, the compensation that may be paid or become payable to Parsley’s named executive officers (“NEOs”) that is based on or otherwise relates to the mergers (the “Parsley compensation proposal”). Approval of the Parsley compensation proposal requires the affirmative vote of the holders of a majority of the shares of Parsley common stock present virtually during the Parsley special meeting or represented by proxy at the Parsley special meeting and entitled to vote thereon.

This joint proxy statement/prospectus, which you should read carefully, contains important information about the mergers, the stock issuance and other matters being considered at the Pioneer special meeting and the Parsley special meeting.

Q:

When and where is the Pioneer special meeting?

A:

The Pioneer special meeting will be a virtual only meeting conducted exclusively via live webcast at www.virtualshareholdermeeting.com/PXD21SM starting at [    :    ] a.m. Central Time (with log-in beginning at [    :    ] a.m. Central Time) on [            ], 2021. You will be able to attend the Pioneer special meeting online

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and vote your shares electronically during the meeting by going to www.virtualshareholdermeeting.com/PXD21SM and entering the 16-digit control number included on the proxy card or voting instruction form that you received. Because the Pioneer special meeting is completely virtual and being conducted via live webcast, stockholders will not be able to attend the meeting in person.

Q:

When and where is the Parsley special meeting?

A:

The Parsley special meeting will be a virtual only meeting conducted exclusively via live webcast at www.virtualshareholdermeeting.com/PE21SM starting at [    :    ] a.m. Central Time (with log-in beginning at [    :    ] a.m. Central Time) on [                ], 2021. You will be able to attend the Parsley special meeting online and vote your shares electronically during the meeting by going to www.virtualshareholdermeeting.com/PE21SM and entering the 16-digit control number included on the proxy card or voting instruction form that you received. Because the Parsley special meeting is completely virtual and being conducted via live webcast, stockholders will not be able to attend the meeting in person.

Q:

What will Parsley stockholders and Parsley LLC unitholders receive for their shares of Parsley common stock or Parsley LLC units, as applicable, in the mergers?

A:

Immediately following the effective time, subject to certain exceptions, each share of Parsley Class A common stock issued and outstanding immediately prior to the effective time that is eligible for conversion into Pioneer common stock in accordance with the terms of the merger agreement and each Parsley LLC unit issued and outstanding immediately prior to the effective time that is describedeligible for conversion into Pioneer common stock in this proxy statement/prospectus and attached as Annex A to this proxy statement/prospectus. As a resultaccordance with the terms of the merger each outstanding Pioneer Southwest common unit, other than those owned by Pioneer USA,agreement will be converted automatically into the right to receive 0.2325 of a share0.1252 shares of Pioneer common stock. The 18,721,200 Pioneer Southweststock, with cash paid in lieu of the issuance of fractional shares, if any (the “merger consideration”). In addition, at the effective time, each share of Parsley Class B common units owned by Pioneer USAstock will not be converted inautomatically cancelled for no additional consideration, subject to any statutory rights to appraisal pursuant to the merger and will remain outstanding asDGCL solely with respect to the only limited partner interests in Pioneer Southwest following the merger.Parsley Class B common stock.

The mergerIn addition, Parsley and Pioneer will become effective on the date andtake, or cause to be taken, all actions necessary so that, at the effective time, thatParsley’s issued and outstanding time-based restricted stock unit awards, performance-based restricted stock unit awards, time-based restricted stock awards and performance-based restricted stock awards will be treated as described in “The Merger Agreement—Treatment of Parsley Equity-Based Awards.”

For additional information regarding the certificate of merger is filed withconsideration to be received in the Secretary of Statemergers, please see “The Merger Agreement—Terms of the State of Delaware, or a later date and time if set forth in the certificate of merger. Throughout this proxy statement/prospectus, this is referred to as the “effective time” of the merger.Mergers; Merger Consideration.”

 

Q:Why am I receiving these materials?

How will Parsley LLC units and Parsley Class B common stock be treated in the mergers?

 

A:The proposed

Until the effective time, pursuant to the Fourth Amended and Restated Limited Liability Company Agreement of Parsley LLC (the “Parsley LLC agreement”), each Parsley LLC unitholder (other than Parsley) generally has the right to exchange his, her or its Parsley LLC units (and a corresponding number of shares of Parsley Class B common stock) for shares of Parsley Class A common stock at an exchange ratio of one share of Parsley Class A common stock for each Parsley LLC unit (and corresponding share of Parsley Class B common stock) exchanged (subject to customary conversion rate adjustments for stock splits, stock dividends and reclassifications) or, if either Parsley or Parsley LLC so elects, cash. Immediately following the effective time, each Parsley LLC unit issued and outstanding immediately prior to the effective time that is eligible for conversion into Pioneer common stock in accordance with the terms of the merger cannotagreement will be completed withoutconverted automatically into the approvalright to receive the merger consideration. In addition, at the effective time, each share of Parsley Class B common stock will be automatically cancelled for no additional consideration, subject to any statutory rights to appraisal pursuant to the DGCL solely with respect to the Parsley Class B common stock.

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The merger consideration received by Parsley LLC unitholders and the cancellation of the Parsley Class B common stock will be subject to certain tax treatment as described in “The Mergers—Material U.S. Federal Income Tax Consequences.”

For additional information regarding the consideration to be received in the mergers, please see “The Merger Agreement—Terms of the Mergers; Merger Consideration.”

Q:

If I am a Parsley Class A stockholder or a Parsley LLC unitholder, how will I receive the merger consideration to which I am entitled?

A:

If you are a holder of certificates that represent eligible shares of Parsley Class A common stock (“Parsley Class A common stock certificates”), a holder of certificates that represent eligible Parsley LLC units (“Parsley LLC unit certificates”) or otherwise a holder of eligible Parsley LLC units, a notice advising you of the effectiveness of the mergers and a letter of transmittal and, if applicable, instructions for the surrender of your Parsley Class A common stock certificates or Parsley LLC unit certificates will be mailed to you as soon as practicable after the effective time. After receiving proper documentation from you, the exchange agent will send to you (i) a statement reflecting the aggregate whole number of shares of Pioneer Southwest unitholders at the Pioneer Southwest special meeting holding, as of the record date of the Pioneer Southwest special meeting,common stock (which will be in uncertificated book-entry form) that you have a majority of the outstanding Pioneer Southwest common units. This proxy statement/prospectus contains important information about the proposed merger andright to receive pursuant to the merger agreement and you should carefully read this proxy statement/prospectus, including(ii) a check in the amount equal to the cash payable in lieu of any documents incorporated by referencefractional shares of Pioneer common stock and the Annexes, in its entirety before votingdividends and other distributions on the shares of Pioneer common stock issuable to you as merger proposal.consideration.

If you are a holder of book-entry shares representing eligible shares of Parsley Class A common stock (“Parsley Class A book-entry shares”), the exchange agent will send you, as promptly as practicable (and in any event, within three business days) after the effective time, the merger consideration, cash in lieu of any fractional shares of Pioneer common stock and any dividends and other distributions on the shares of Pioneer common stock issuable as merger consideration, in each case, that such holder has the right to receive.

No interest will be paid or accrued on any amount payable for shares of Parsley Class A common stock or Parsley LLC units eligible to receive the merger consideration pursuant to the merger agreement.

For additional information on the exchange of Parsley Class A common stock and Parsley LLC units for the merger consideration (and on the corresponding cancellation of Parsley Class B common stock for no additional consideration), please see “The Merger Agreement—Exchange and Payment Procedures.”

Q:

What will holders of Parsley equity awards receive in the mergers?

A:

The merger agreement provides for the treatment set forth below with respect to the awards held by Parsley’s non-employee directors, executive officers and other employees at the effective time:

Parsley Time-Based Restricted Stock Unit Awards: Each vested Parsley time-based restricted stock unit award (including any Parsley time-based restricted stock unit award that vests by its terms as a result of the consummation of the mergers) that is issued and outstanding as of immediately prior to the effective time will, at the effective time, be cancelled and converted into the right to receive a number of shares of Pioneer common stock (to be issued within 30 days following the closing date in accordance with the terms of the applicable restricted stock unit award agreement), rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio. Any Parsley time-based restricted stock unit award held by a non-employee member of the Parsley board will become fully vested as a result of the consummation of the mergers and will be treated as a vested Parsley time-based restricted stock unit award entitled to the foregoing treatment. Each unvested Parsley time-based restricted stock unit award (excluding any Parsley time-based restricted stock unit award that vests by its terms as a result of the consummation of the mergers) that is issued and outstanding as of immediately prior to the effective time will, at the effective

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time, be converted, on the same terms and conditions (including time-based vesting conditions) as were applicable to such award as of immediately prior to the effective time, into the right to receive a time-based award covering a number of shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio.

Parsley Time-Based Restricted Stock Awards: Each unvested Parsley time-based restricted stock award (excluding any Parsley time-based restricted stock award that vests by its terms as a result of the consummation of the mergers) that is issued and outstanding as of immediately prior to the effective time will, at the effective time, be converted, on the same terms and conditions (including time-based vesting conditions) as were applicable to such time-based restricted stock award as of immediately prior to the effective time, into the right to receive a time-based restricted stock award of Pioneer covering a number of shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio.

Parsley Performance-Based Restricted Stock Unit Awards and Performance-Based Restricted Stock Awards: Each Parsley performance-based restricted stock unit award and Parsley performance-based restricted stock award that is issued and outstanding as of immediately prior to the effective time will be deemed to have become vested pursuant to the terms of the merger agreement based on deemed achievement of the maximum level of performance applicable to such award as of the date immediately prior to the effective time. At the effective time, any such vested performance-based restricted stock unit award will automatically be cancelled and converted into the right to receive a number of shares of Pioneer common stock (to be issued within 30 days following the closing date in accordance with the terms of the applicable award agreement), rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio. At the effective time, any such vested performance-based restricted stock award will automatically be converted into the right to receive a number of shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio.

For additional information regarding the treatment of Parsley equity awards, please see “The Merger Agreement—Treatment of Parsley Equity-Based Awards.”

Q:

Who will own Pioneer immediately following the mergers?

A:

Pioneer and Parsley estimate that, upon completion of the mergers, Pioneer stockholders as of immediately prior to the mergers will hold approximately 76%, and Parsley stockholders as of immediately prior to the mergers will hold approximately 24%, of the issued and outstanding shares of Pioneer common stock (without giving effect to any shares of Pioneer common stock held by Parsley stockholders prior to the mergers). The exact equity stake of Parsley stockholders in Pioneer immediately following the effective time will depend on the number of shares of Pioneer common stock, shares of Parsley Class A common stock and Parsley LLC units issued and outstanding immediately prior to the effective time.

 

Q:Why are

What will be the composition of the board of directors and management of Pioneer and Pioneer Southwest proposingfollowing the merger?completion of the mergers?

 

A:Pioneer and Pioneer Southwest believe that the merger will benefit both Pioneer and Pioneer Southwest because Pioneer is believed to be better suited to take advantage

Upon completion of the developmentmergers, the current directors and executive officers of Pioneer Southwest’s leasehold acreage, especially through horizontal drilling, dueare expected to certain limitationscontinue in their current positions, other than for changes previously announced by Pioneer or as may be publicly announced by Pioneer in the future in the normal course.

Additionally, pursuant to the merger agreement, Pioneer and Parsley have agreed that the Pioneer board will be expanded by two members as of the effective time and Matt Gallagher and A.R. Alameddine will be

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appointed as directors of the Pioneer board. If either Mr. Gallagher and/or Mr. Alameddine is unwilling or unable to serve as a member of the Pioneer board at the effective time, then another member or members of the Parsley board that is determined by the Pioneer board in good faith to be independent with respect to his or her service on the Pioneer board and is mutually agreed between Pioneer and Parsley will instead be appointed to fill such vacancy or vacancies on the Pioneer board in lieu of Mr. Gallagher and/or Mr. Alameddine, as applicable. Any remuneration to be paid to these directors will be consistent with Pioneer’s remuneration policy for its directors. Pioneer has also agreed to take all action necessary to nominate the Parsley director designees for election to the Pioneer board in the proxy statement relating to the first annual meeting of Pioneer stockholders following the closing of the mergers. In addition, the Pioneer board (or a committee thereof) will appoint each Parsley director designee to a committee of the Pioneer board within 90 days following the closing date, in a manner consistent with its ordinary policies and practices. For additional information, please see “The MergersBoard of Directors and Management of Pioneer Following Completion of the Mergers.

Q:

How important is my vote?

A:

Your vote “FOR” each proposal presented at the Pioneer special meeting and the Parsley special meeting is very important and you are encouraged to horizontal developmentsubmit a proxy as soon as possible. The mergers cannot be completed without, among other things, the approval of the Pioneer stock issuance proposal by Pioneer stockholders and the approval of the Parsley merger proposal by Parsley stockholders.

Pioneer. Approval of the Pioneer stock issuance proposal requires the affirmative vote of holders of a majority of the shares of Pioneer common stock present virtually during the Pioneer special meeting or represented by proxy at the Pioneer special meeting and entitled to vote thereon. Accordingly, a Pioneer stockholder’s abstention from voting will have the same effect as a vote “against” the Pioneer stock issuance proposal, while a broker non-vote or the failure of a Pioneer stockholder to attend the Pioneer special meeting and vote will have no effect on the outcome of the Pioneer stock issuance proposal.

Parsley. Approval of the Parsley merger proposal requires the affirmative vote of the holders of a majority of the outstanding shares of Parsley common stock entitled to vote on the proposal. Accordingly, a Parsley stockholder’s abstention from voting, a broker non-vote, or the failure of a Parsley stockholder to attend the Parsley special meeting and vote will have the same effect as a vote “against” the Parsley merger proposal. Approval of the Parsley compensation proposal requires the affirmative vote of the holders of a majority of the shares of Parsley common stock present virtually during the Parsley special meeting or represented by proxy at the Parsley special meeting and entitled to vote thereon. Accordingly, a Parsley stockholder’s abstention from voting will have the same effect as a vote “against” the Parsley compensation proposal, while a broker non-vote or the failure of a Parsley stockholder to attend the Parsley special meeting and vote will have no effect on the outcome of the Parsley compensation proposal.

Q:

How do the Pioneer board and the Parsley board recommend that I vote?

A:

The Pioneer board unanimously recommends that Pioneer Southwest faces. stockholders vote “FOR” the Pioneer stock issuance proposal. For additional information regarding how the Pioneer board recommends that Pioneer stockholders vote, see the section titled “The potential for Pioneer Southwest to develop all of its acreage through horizontal drilling is limited by the non-contiguous nature of some of Pioneer Southwest’s acreage and by Pioneer Southwest’s limited rights across some of its acreage. Furthermore, the potential for horizontal drilling locations can be adversely affected by the location of existing or future vertical wells, which may limit or eliminate Pioneer Southwest’s ability to drill a horizontal well. Pioneer Southwest’s non-contiguous leasehold acreage is contiguous with Pioneer leasehold acreage and could potentially be developed by Pioneer if all the property was owned by Pioneer. Please read “The Merger — Mergers—Recommendation of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board and Reasons for the Merger.Mergers.

The Parsley board unanimously recommends that Parsley stockholders vote “FOR” the Parsley merger proposal and “FOR” the Parsley compensation proposal. For additional information regarding how the Parsley board recommends that Parsley stockholders vote, see the section titled “The Mergers—Recommendation of the Parsley Board and Reasons for the Mergers.”

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Q:

Will the shares of Pioneer common stock that I acquire in connection with the mergers receive a dividend?

A:

After the closing of the mergers, as a holder of Pioneer common stock, you will receive the same dividends on shares of Pioneer common stock that all other holders of Pioneer common stock will receive for any dividend with a record date that occurs after the effective time.

 

Q:What will happen

Will I continue to Pioneer Southwest as a resultreceive dividends in respect of the merger?my shares of Parsley Class A common stock and distributions in respect of my Parsley LLC units?

 

A:As a result

Prior to the closing of the merger, MergerCo will merge with and into Pioneer Southwest,mergers, Parsley and Pioneer Southwest will survivecoordinate regarding the declaration and payment of dividends in respect of their common stock and distributions in respect of Parsley LLC units, and the record dates and payment dates relating thereto, so as an indirect wholly-owned subsidiaryto ensure that you do not receive two dividends (or a dividend and a distribution), or fail to receive one dividend or distribution, as applicable, in any quarter with respect to your shares of Pioneer.Parsley Class A common stock, Parsley LLC units and shares of Pioneer common stock that you receive in exchange therefor in the mergers.

After the closing of the mergers, former Parsley Class A stockholders and Parsley LLC unitholders who hold Parsley Class A common stock certificates or Parsley LLC unit certificates, or who otherwise hold eligible Parsley LLC units, as applicable, will not be entitled to be paid dividends otherwise payable on the shares of Pioneer common stock into which their shares of Parsley Class A common stock or Parsley LLC units are exchangeable until they surrender their Parsley Class A common stock certificates or Parsley LLC unit certificates, as applicable, and deliver an applicable letter of transmittal. Dividends will be accrued for these holders and they will receive the accrued dividends, without interest, when they surrender their Parsley Class A common stock certificates or Parsley LLC unit certificates, as applicable, and deliver an applicable letter of transmittal.

Parsley has declared a fourth quarter cash dividend of $0.05 per share of Parsley Class A common stock, payable on December 18, 2020 to holders of record on December 8, 2020. Pioneer has declared a quarterly dividend of $0.55 per share of Pioneer common stock, payable on January 14, 2021 to holders of record on December 31, 2020. After the closing of the mergers, all Pioneer dividends will remain subject to approval by the Pioneer board.

Q:What will

Will the shares of Pioneer Southwest common unitholders receive instock received at the merger?time of completion of the mergers be traded on an exchange?

 

A:If

Yes. It is a condition to the merger is completed, Pioneer Southwest unitholders other than Pioneer USA will be entitled to receive 0.2325consummation of a share of Pioneer common stock in exchange for each Pioneer Southwest common unit owned. The exchange ratio is fixed and will not be adjusted on account of any change in price of eitherthe mergers that the shares of Pioneer common stock or Pioneer Southwest common units priorissuable to completionParsley Class A stockholders and Parsley LLC unitholders in connection with the mergers be approved for listing on the NYSE, upon official notice of the merger. If the exchange ratio would result in a Pioneer Southwest unitholder’s being entitled to receive a fraction of a share of Pioneerissuance. Parsley Class A common stock that Pioneer Southwest unitholder will not receive any fractional share of Pioneer common stock. In lieu of receiving any fractional share of Pioneercurrently trades on the NYSE under the stock symbol “PE”. When the mergers are completed, the Parsley Class A common stock will cease to which any Pioneer Southwest unitholder would otherwise have been entitled, after aggregating all fractions of shares to which such unitholder would be entitled, any fractional sharetraded on the NYSE and will be rounded up to a whole share of Pioneer common stock. For additional information regarding exchange procedures, please read “The Merger Agreement —deregistered under the Exchange of Certificates; No Fractional Shares.”Act.

 

Q:Where

How will Pioneer stockholders be affected by the mergers?

A:

Upon completion of the mergers, each Pioneer stockholder will hold the same number of shares of Pioneer common stock that such stockholder held immediately prior to completion of the mergers. As a result of the mergers, Pioneer stockholders will own shares in a larger company with more assets. However, because Pioneer will be issuing additional shares of Pioneer common stock to Parsley Class A stockholders and Parsley LLC unitholders in exchange for their eligible shares of Parsley Class A common stock and eligible Parsley LLC units, respectively, in connection with the mergers, each share of Pioneer common stock issued and outstanding immediately prior to the mergers will represent a smaller percentage of the aggregate number of shares of Pioneer common stock issued and outstanding after the mergers.

Q:

What are the material U.S. federal income tax consequences of the integrated mergers to Parsley Class A stockholders?

A:

Assuming that the integrated mergers are completed as currently contemplated, Pioneer and Parsley intend for the integrated mergers, taken together, to qualify as a “reorganization” within the meaning of

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Section 368(a) of the Internal Revenue Code of 1986, as amended (the “Code”). It is a condition to Parsley’s obligation to complete the mergers that it receive an opinion from Vinson & Elkins L.L.P. (“Vinson & Elkins”), counsel to Parsley, or another nationally recognized law firm reasonably satisfactory to Parsley, dated as of the closing date, to the effect that the integrated mergers, taken together, will qualify as a “reorganization” within the meaning of Section 368(a) of the Code. Provided that the integrated mergers, taken together, qualify as a “reorganization” within the meaning of Section 368(a) of the Code, a U.S. holder (as defined in “The Mergers—Material U.S. Federal Income Tax Consequences”) of Parsley Class A common stock generally will not recognize any gain or loss for U.S. federal income tax purposes upon the exchange of Parsley Class A common stock for shares of Pioneer common stock pursuant to the integrated mergers, except with respect to any cash received in lieu of fractional shares of Pioneer common stock.

Please see “The Mergers—Material U.S. Federal Income Tax Consequences” for a more detailed discussion of the U.S. federal income tax consequences of the integrated mergers to U.S. holders of Parsley Class A common stock. Each Parsley Class A stockholder is strongly urged to consult with a tax advisor to determine the particular U.S. federal, state or local or non-U.S. income or other tax consequences of the integrated mergers to it.

Q:

What are the material U.S. federal income tax consequences of the mergers to Parsley LLC unitholders who receive shares of Pioneer common stock in the Opco merger?

A:

The exchange of Parsley LLC units for shares of Pioneer common stock, and cash in lieu of fractional shares of Pioneer Southwest common stock, if any, in the Opco merger is intended to be a taxable event for U.S. holders (as defined in the section titled “The Mergers—Material U.S. Federal Income Tax Consequences”) of Parsley LLC units trade afterfor U.S. federal income tax purposes, even though Parsley LLC unitholders will receive no cash consideration (other than any cash received in lieu of fractional shares of Pioneer common stock) in the merger?Opco merger. A U.S. holder of Parsley LLC units generally will recognize gain or loss in an amount equal to the difference between (i) the sum of (A) the fair market value of the Pioneer common stock received, (B) any cash received (including any cash in lieu of fractional shares of Pioneer common stock and any portion of the TRA termination payments (as defined herein) that the parties to the TRA amendment have agreed to treat as additional consideration payable to such holder for the Parsley LLC units exchanged in the Opco merger) and (C) such U.S. holder’s share of Parsley LLC’s nonrecourse liabilities immediately prior to the Opco merger and (ii) such U.S. holder’s adjusted tax basis in the Parsley LLC units exchanged therefor (which will include such U.S. holder’s share of Parsley LLC’s nonrecourse liabilities immediately prior to the Opco merger). Such gain or loss generally will be capital gain or loss. However, a portion of such gain or loss, which portion could be substantial, will be separately computed and taxed as ordinary income or loss to the extent attributable to assets giving rise to depreciation recapture or other “unrealized receivables” or to “inventory items” owned by Parsley LLC and its subsidiaries. For U.S. holders subject to the passive loss rules, passive losses that were not deductible by a U.S. holder of Parsley LLC units in prior taxable periods may become available to offset a portion of any gain recognized by such holder in connection with the Opco merger.

Please see “The Mergers—Material U.S. Federal Income Tax Consequences” for a more detailed discussion of the U.S. federal income tax consequences of the Opco merger to U.S. holders of Parsley LLC units. Each Parsley LLC unitholder is strongly urged to consult with a tax advisor to determine the particular U.S. federal, state or local or non-U.S. income or other tax consequences of the Opco merger to it.

Q:

When do Pioneer and Parsley expect to complete the mergers?

 

A:Shares

Pioneer and Parsley currently expect to complete the mergers in the first quarter of 2021. However, neither Pioneer common stocknor Parsley can predict the actual date on which the mergers will continuebe completed, nor can the parties ensure that the mergers will be completed, because completion is subject to trade onconditions beyond the NYSE undercontrol of either company. Please see “The Mergers—Regulatory Approvals” and “The Merger Agreement—Conditions Precedent to the symbol “PXD.Mergers. Pioneer Southwest common units will no longer be publicly traded.

 

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Q:

What will Pioneer stockholders receive inhappens if the merger?mergers are not completed?

 

A:

If the Parsley merger proposal is not approved by the Parsley stockholders, the Pioneer stock issuance proposal is not approved by Pioneer stockholders will simply retainor the shares of Pioneer common stock they currently own. Theymergers are not completed for any other reason, Parsley Class A stockholders and Parsley LLC unitholders will not receive any additionalpayment for shares of PioneerParsley Class A common stock or any other consideration inParsley LLC units they own. Instead, Parsley will remain an independent public company, Parsley Class A common stock will continue to be listed and traded on the merger.NYSE and registered under the Exchange Act and Parsley will continue to file periodic reports with the SEC.

Under specified circumstances, Pioneer or Parsley may be required to reimburse the other party’s expenses or pay a termination fee upon or subsequent to termination of the merger agreement, as described in “The Merger Agreement—Termination Fees and Expense Reimbursement.”

 

Q:What will happen to future distributions on my

Who can vote at, and what are the record dates of, each of the Pioneer Southwest common units?special meeting and the Parsley special meeting?

 

A:Prior to the termination of the merger agreement or the effective time of the merger, it is expected that

All Pioneer Southwest unitholders will continue to receive regular quarterly distributions on their Pioneer Southwest common units consistent with past practice and not in excess of $0.52 per Pioneer Southwest common unit per quarter (which $0.52 per common unit is equivalent to the most recent distribution declared for the quarter ended June 30, 2013), provided that the record date for such quarterly distribution occurs prior to the effective time of the merger. If the merger agreement terminates, it is expected that distributions would continue, consistent with past practice and in accordance with the termsstockholders who hold shares of Pioneer Southwest’s partnership agreement.

Once the merger is completed, former Pioneer Southwest unitholders who surrender their Pioneer Southwest common units in accordance with the merger agreement will be eligible, in their capacity as Pioneer stockholders, to receive dividends declared by the Pioneer Board on Pioneer common stock if any, after the effective time of the merger. There is no guarantee that the Pioneer Board will declare dividends on Pioneer common stock in the future.

Q:When and where will the Pioneer Southwest special meeting be held?

A:The special meeting of Pioneer Southwest unitholders will be heldrecord at the officesclose of Pioneer Southwest, 5205 N. O’Connor Blvd., Suite 200, Irving, Texas 75039,business on [], 2013, at [], local time.

Q:Who is entitled to vote at            ], 2020, the Pioneer Southwest special meeting?

A:The record date for the Pioneer Southwest special meeting is [], 2013. Only Pioneer Southwest unitholders of(the “Pioneer record as of the close of business on the record datedate”), are entitled to receive notice of and to vote at the Pioneer Southwest special meeting or any adjournment of the Pioneer Southwest special meeting.

Q:What is the vote required to approve the merger proposal and the adjournment proposal?

A:The merger proposal will be approved if the holders, asAll Parsley stockholders who hold shares of Parsley common stock of the record date of the Pioneer Southwest special meeting, of a majority of the outstanding Pioneer Southwest common units vote in favor of the merger proposal at the Pioneer Southwest special meeting. Failures to vote, abstentions and broker non-votes (if any) will have the same effect as a vote against the merger proposal. Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP have entered into the voting agreement pursuant to which Pioneer, Pioneer USA and MergerCo have agreed to vote the Pioneer Southwest common units owned by them in favor of the merger proposal, including the 18,721,200 Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4% of the outstanding Pioneer Southwest common units and therefore constitute a sufficient number of Pioneer Southwest common units to approve the merger proposal at the Pioneer Southwest special meeting.

The adjournment proposal will be approved if the holders, asclose of business on [            ], 2020, the record date offor the Pioneer SouthwestParsley special meeting (the “Parsley record date”), are entitled to receive notice of a majority of the outstanding Pioneer Southwest common unitsand to vote in favor of the adjournment proposal at the Pioneer SouthwestParsley special meeting. Failures to vote, abstentions and broker non-votes (if any) will have the same effect as a vote against this proposal.

Q.What constitutes a quorum at the Pioneer Southwest special meeting?

A:The presence in person or by proxy at the Pioneer Southwest special meeting of the holders of a majority of Pioneer Southwest’s outstanding common units on the record date will constitute a quorum and will permit Pioneer Southwest to conduct the proposed business at the special meeting. As a result of Pioneer’s ownership in Pioneer Southwest, and Pioneer’s obligation to vote its Pioneer Southwest common units at the meeting under the voting agreement, a quorum is guaranteed to exist at the meeting. Units held in your name will be counted as present at the special meeting if you:

are present in person at the meeting; or

have submitted a properly executed proxy card or properly submitted your proxy by telephone or internet.

Proxies received but marked as abstentions will be counted as units that are present and entitled to vote for purposes of determining the presence of a quorum. Because the only proposals for consideration at the Pioneer Southwest special meeting are non-discretionary proposals, it is not expected that there will be any broker non-votes at the Pioneer Southwest special meeting. However, if there are any broker non-votes, they will be counted as units that are present and entitled to vote for purposes of determining the presence of a quorum.

 

Q:

How domany votes may I vote my Pioneer Southwest common units if I hold my units in my own name?

cast?

A:After you have read this proxy statement/prospectus carefully, please respond by completing, signing and dating your proxy card and returning it in the enclosed postage-paid envelope, or by submitting your proxy by telephone or the internet as soon as possible in accordance with the instructions provided under “The Pioneer Southwest Special Meeting — Voting Procedures” beginning on page 44.

Q:If my Pioneer Southwest common units are held in “street name” by my broker or other nominee, will my broker or other nominee vote my units for me?

A:Not unless you tell them how to vote. Absent specific instructions from you, your broker is not allowed to vote your Pioneer Southwest common units on any proposal on which your broker, bank or other nominee does not have discretionary authority. The only proposals for consideration at the Pioneer Southwest special meeting are the merger proposal and the adjournment proposal, which are matters for which brokers, banks and other nominees do not have discretionary authority to vote. To instruct your broker or other nominee how to vote, you should follow the directions that your broker or other nominee provides to you.

Please note that you may not vote your Pioneer Southwest common units held in “street name” by returning a proxy card directly to Pioneer Southwest or by voting in person at the Pioneer Southwest special meeting unless you provide a “legal proxy,” which you must obtain from your broker or other nominee. If you do not instruct your broker or other nominee on how to vote your Pioneer Southwest common units, your broker or other nominee may not vote your Pioneer Southwest common units, which will have the same effect as a vote against the approval of the merger proposal and the adjournment proposal. You should therefore provide your broker or other nominee with instructions as to how to vote your Pioneer Southwest common units.

Q:When do you expect the merger to be completed?

A:A number of conditions must be satisfied before Pioneer and Pioneer Southwest can complete the merger, including the approval of the merger proposal by the Pioneer Southwest unitholders. For more information about these conditions, please read “The Merger Agreement — Conditions to the Merger.” Although Pioneer and Pioneer Southwest cannot be sure when all of the conditions to the merger will be satisfied, Pioneer and Pioneer Southwest expect to complete the merger as soon as practicable following the Pioneer Southwest special meeting.

Q:How do the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board recommend that the Pioneer Southwest unitholders vote?

A:The Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board recommend that Pioneer Southwest unitholders vote FOR the merger proposal.

On August 9, 2013, the Pioneer Southwest Conflicts Committee unanimously approved the merger agreement and the merger transactions and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. This action of the Pioneer Southwest Conflicts Committee constitutes “Special Approval” of the merger agreement and the merger transactions under Pioneer Southwest’s partnership agreement. The Pioneer Southwest Conflicts Committee recommended that the Pioneer Southwest GP Board make the same approval and determination as the Pioneer Southwest Conflicts Committee. Based in part on the Pioneer Southwest Conflicts Committee’s approval and determination, Special Approval and recommendation, the Pioneer Southwest GP Board approved the merger agreement and the merger transactions (such approval being unanimous among the independent directors, with the non-independent directors of Pioneer Southwest GP recusing themselves from the consideration and vote on such approval) and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. The Pioneer Southwest GP Board caused Pioneer Southwest GP to approve the merger agreement and the merger transactions and directed that the merger agreement and the merger transactions be submitted to the Pioneer Southwest unitholders at the Pioneer Southwest special meeting for approval. The Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board recommend that the Pioneer Southwest unitholders vote in favor of the merger proposal.

Q:What are the expected U.S. federal income tax consequences to a Pioneer Southwest unitholder as a result of the transactions contemplated by the merger agreement?

 

A:

Under current law, it is anticipated for U.S. federal income tax purposes that Pioneer Southwest unitholders generally will recognize gain with respect to the exchange of Pioneer Southwest common units for sharesEach issued and outstanding share of Pioneer common stock inentitles its holder of record to one vote on each matter to be considered at the merger in an amount equalPioneer special meeting. The Pioneer stockholders of record on the Pioneer record date are the only Pioneer stockholders that are entitled to receive notice of, and to vote at, the excess of (1) each Pioneer Southwest unitholder’s “amount realized” for U.S. federal income tax purposes, which equals the sum of the fair market value of the shares of Pioneer common stock received, plus the unitholder’s allocated share of Pioneer Southwest’s pre-merger liabilities (it being understood that no Pioneer Southwest unitholder bearsspecial meeting or any personal responsibilityadjournments or liability in respect of such allocated liabilities), over (2) such Pioneer Southwest unitholder’s aggregate adjusted tax basis in Pioneer Southwest common units (including basispostponements thereof.

attributable the unitholder’s share of Pioneer Southwest’s pre-merger liabilities). Pioneer Southwest unitholders generally will recognize loss to the extent that the amount of their basis described in clause (2) above exceeds the amount realized described in clause (1) above.

Please read “Risk Factors — Tax Risks RelatedEach issued and outstanding share of Parsley Class A common stock and each issued and outstanding share of Parsley Class B common stock entitles its holder of record to one vote on each matter to be considered at the Merger”Parsley special meeting, and “Material U.S. Federal Income Tax Consequencesthe Parsley Class A common stock and Parsley Class B common stock will vote together as a single class. The Parsley stockholders of record on the Merger.”Parsley record date are the only Parsley stockholders that are entitled to receive notice of, and to vote at, the Parsley special meeting or any adjournments or postponements thereof.

 

Q:

What are the expected U.S. federal income tax consequences forconstitutes a Pioneer Southwest unitholderquorum at each of the ownership of shares of Pioneer common stock afterspecial meeting and the merger is completed?Parsley special meeting?

 

A:Each

In order for business to be conducted at the Pioneer Southwest unitholder who becomesand Parsley special meetings, a quorum must be present.

A quorum at the Pioneer special meeting requires the presence of the holders of a majority of the total issued and outstanding shares of Pioneer common stock entitled to vote, present virtually or represented by proxy, at the Pioneer special meeting. A Pioneer stockholder will be considered present at the virtual meeting by logging into the Pioneer special meeting website using his, her or its unique 16-digit control number or by appointing a proxy. If you submit a properly executed proxy card, or submit a proxy via the internet or by telephone, even if you do not vote for the proposal or vote to “abstain” in respect of the proposal, your shares of Pioneer common stock will be counted for purposes of calculating whether a quorum is present for the transaction of business at the Pioneer special meeting. Because it is expected that the only matter to be voted on at the Pioneer special meeting will be non-routine under NYSE rules, brokers will not have discretionary authority to vote on the Pioneer stock issuance proposal; therefore, if you do not provide voting instructions to your broker, bank or other nominee, your shares will not count towards determining whether a quorum is present and your shares will not be voted on the Pioneer stock issuance proposal.

xi


A quorum at the Parsley special meeting requires the presence of the holders of a majority of the total issued and outstanding shares of Parsley common stock entitled to vote, present virtually or represented by proxy, at the Parsley special meeting. A Parsley stockholder will be considered present at the virtual meeting by logging into the Parsley special meeting website using his, her or its unique 16-digit control number or by appointing a proxy. If you submit a properly executed proxy card, or submit a proxy via the internet or by telephone, even if you do not vote for the proposal or vote to “abstain” in respect of the proposal, your shares of Parsley common stock will be counted for purposes of calculating whether a quorum is present for the transaction of business at the Parsley special meeting. Because it is expected that all of the matters to be voted on at the Parsley special meeting will be non-routine under NYSE rules, brokers will not have discretionary authority to vote on any such proposal; therefore, if you do not provide voting instructions to your broker, bank or other nominee, your shares will not count towards determining whether a quorum is present and your shares will not be voted on the Parsley merger proposal or the Parsley compensation proposal.

Q:

What do I need to do now?

A:

After you have carefully read and considered the information contained in or incorporated by reference into this joint proxy statement/prospectus, please submit your proxy via the internet or by telephone in accordance with the instructions set forth on the applicable proxy card or voting instruction form you received, or complete, sign, date, and return the applicable proxy card or voting instruction form in the self-addressed, stamped envelope provided as soon as possible so that your shares will be represented and voted at the Pioneer stockholderspecial meeting or the Parsley special meeting, as a resultapplicable.

For additional information on voting procedures, please see “Pioneer Special Meeting” and “Parsley Special Meeting.”

Q:

How will my proxy be voted?

A:

If you submit your proxy via the internet, by telephone, or by completing, signing, dating, and returning the applicable proxy card or voting instruction form, your proxy will be voted in accordance with your instructions. If you sign your proxy card and return it without indicating how you would like to vote your shares, your proxy card will be voted in accordance with the recommendation of the mergerPioneer board or the Parsley board, as applicable.

For additional information on voting procedures, please see “Pioneer Special Meeting” and “Parsley Special Meeting.”

Q:

Who will as iscount the casevotes?

A:

The votes at the Pioneer special meeting will be tabulated and certified by the inspector of elections appointed by the Pioneer board.

The votes at the Parsley special meeting will be tabulated and certified by the inspector of elections appointed by the Parsley board.

Q:

How do I submit questions for existingthe Pioneer virtual special meeting?

A:

Stockholders attending the virtual meeting will be in a listen-only mode and will not be able to speak during the webcast. However, stockholders will be subjectable to submit any questions by the close of business on [            ], 2021 in advance of the Pioneer special meeting by visiting www.proxyvote.com.

xii


Q:

Who do I contact if I am encountering difficulties attending the Pioneer special meeting online?

A:

If you encounter any difficulties during the check-in process or during the meeting, please call the VSM Shareholder Meeting Support Line at (844) 986-0822 or (303) 562-9302 (International), and may realize and/or recognize, U.S. federal income tax on any proceeds received ina technician will be ready to assist you starting at [    :    ] a.m. Central Time and until the form of dividends on such stockholder’s shares of Pioneer common stock or frommeeting has finished. Please give yourself sufficient time to log-in and ensure you can hear the sale of such stockholder’s shares of Pioneer common stock.streaming audio before the meeting starts.

 

Q:Assuming

How do I submit questions for the merger closes before December 31, 2013, how many Schedule K-1s will I receive if I am a Pioneer Southwest unitholder?Parsley virtual special meeting?

 

A:You

Stockholders attending the virtual meeting will receive one Schedule K-1 from Pioneer Southwest, whichbe in a listen-only mode and will describe your sharenot be able to speak during the webcast. However, stockholders will be able to submit any questions by the close of Pioneer Southwest’s income, gain, loss and deduction for the period prior to the effective timebusiness on [            ], 2021 in advance of the merger.Parsley special meeting by visiting www.proxyvote.com.

At the effective time of the merger, Pioneer Southwest will be treated as a terminated partnership under Section 708 of the Internal Revenue Code. Therefore, as a result of the merger, Pioneer Southwest’s taxable year will end as of the date of the merger, and Pioneer Southwest will be required to file a final U.S. federal income tax return for the taxable year ending on the date the merger is effective. Pioneer Southwest expects to furnish a Schedule K-1 to each Pioneer Southwest unitholder following the end of the year in which the merger is completed, on the same timeline that Schedule K-1s have historically been furnished to Pioneer Southwest unitholders. Historically, Schedule K-1s have been sent to unitholders in March.

 

Q:Are Pioneer Southwest unitholders entitled to appraisal rights?

Who do I contact if I am encountering difficulties attending the Parsley special meeting online?

 

A:No. Pioneer Southwest unitholders are not entitled

If you encounter any difficulties during the check-in process or during the meeting, please call the VSM Shareholder Meeting Support Line at (844) 986-0822 or (303) 562-9302 (International), and a technician will be ready to appraisal rights under Delaware or other applicable law or contractual appraisal rights under Pioneer Southwest’s partnership agreement orassist you starting at [    :    ] a.m. Central Time and until the merger agreement.meeting has finished. Please give yourself sufficient time to log-in and ensure you can hear the streaming audio before the meeting starts.

 

Q:What if I do not vote?

A:If you do not vote in person or by proxy or if you abstain from voting, it will have the same effect as a vote against the merger proposal and the adjournment proposal. If you are a record holder and you sign and return your proxy card but do not indicate how you want to vote, your proxy will be counted as a vote in favor of the merger proposal and the adjournment proposal.

Q:If I am planning to attend the Pioneer Southwest special meeting in person, should I still vote by proxy?

A:Yes. Whether or not you plan to attend the Pioneer Southwest special meeting, you should vote by proxy. Your Pioneer Southwest common units will not be voted if you do not vote by proxy or do not vote in person at the Pioneer Southwest special meeting.

Q:Can I change my vote after I have voted by proxy?

A:Yes. If you own your units in your own name, you may revoke your proxy at any time prior to its exercise by:

giving written notice of revocation to the secretary of Pioneer Southwest GP at or before the Pioneer Southwest special meeting;

appearing and voting in person at the Pioneer Southwest special meeting;

timely submitting a later dated proxy by telephone or internet no later than 5:00 p.m. Dallas, Texas time on the day before the date of the Pioneer Southwest special meeting; or

properly completing and executing a later dated proxy and delivering it to the secretary of Pioneer Southwest GP at or before the Pioneer Southwest special meeting.

Your presence without voting at the Pioneer Southwest special meeting will not automatically revoke your proxy. Beneficial holders who hold their Pioneer Southwest common units in “street name” by a broker or other nominee may revoke their proxy by following the instructions provided by such broker or nominee.

Q:What should I do if I receive more than one set of voting materials for the Pioneer Southwestspecial meeting or the Parsley special meeting?

 

A:

You may receive more than one set of voting materials for the Pioneer Southwest special meeting, and the materials may includeParsley special meeting, or both, including multiple copies of this joint proxy statement/prospectus and multiple proxy cards or voting instruction cards.forms. For example, if you hold your shares of Pioneer common stock or your shares of Parsley common stock in more than one brokerage account, you will receive a separate voting instruction cardform for each brokerage account in which you hold units. Additionally, ifshares. If you are a holder of record and your shares are registered in more than one name, you will receive more than one proxy card. Please complete, sign, date and returnsubmit each separate proxy card andor voting instruction cardform that you receive according toby following the instructions on it.set forth in each separate proxy or voting instruction form. If you fail to submit each separate proxy or voting instruction form that you receive, not all of your shares will be voted.

 

Q:If I am

What is the difference between holding shares of record and holding shares as a holderbeneficial owner of shares of Pioneer Southwest common units represented by a unit certificate, should I send in my certificate representing Pioneer Southweststock or Parsley common units now?stock?

 

A:No. Please do not send

If your shares of Pioneer common stock are registered directly in your certificates representing Pioneer Southwestname with Pioneer’s registrar and transfer agent, Continental Stock Transfer & Trust Company (“Continental”), or your shares of Parsley common unitsstock are registered directly in your name with Parsley’s registrar and transfer agent, American Stock Transfer & Trust Company, LLC, you are considered, with respect to those shares, to be the stockholder of record. If you are a stockholder of record, then this joint proxy statement/prospectus and your proxy card. After the merger is completed,card have been sent directly to you by Pioneer Southwest unitholders who hold their units in certificated form will receive written instructions for exchanging their certificates representingor Parsley, as applicable.

If your shares of Pioneer common stock or Parsley common stock are held through a bank, broker or other nominee, you are considered, with respect to those shares, the beneficial owner, and those shares are held in “street name” by your bank, broker or other nominee. In that case, this joint proxy statement/prospectus has been forwarded to you by your bank, broker or other nominee. As the beneficial owner, you have the right to direct your bank, broker or other nominee how to vote your shares by following their instructions for voting, and you are also invited to attend the Pioneer special meeting or the Parsley special meeting, as applicable. The proxy materials you received include the 16-digit control number that you will need to vote online during the Pioneer special meeting or the Parsley special meeting, as applicable.

xiii


Q:

If my shares of Pioneer Southwest common units. If you own Pioneer Southweststock or Parsley common unitsstock are held in “street name,” you will need to follow the instructions providedname” by yourmy bank, broker or other nominee, before the merger consideration will be credited to your account by yourmy bank, broker or other nominee followingautomatically vote my shares for me?

A:

No. If your shares of Pioneer common stock or Parsley common stock are held in the closingname of a bank, broker or other nominee, you will receive separate instructions from your bank, broker or other nominee describing how to vote your shares. The availability of internet or telephonic voting will depend on the nominee’s voting process. Please check with your bank, broker or other nominee and follow the voting procedures provided by your bank, broker or other nominee on your voting instruction form.

You should instruct your bank, broker or other nominee how to vote your shares of Pioneer common stock or Parsley common stock, as applicable. Under the rules applicable to broker-dealers, your bank, broker or other nominee does not have discretionary authority to vote your shares on any of the proposals scheduled to be voted on at the Pioneer special meeting or the Parsley special meeting. A so-called “broker non-vote” results when banks, brokers and other nominees return a valid proxy but do not vote on a particular proposal because they do not have discretionary authority to vote on the matter and have not received specific voting instructions from the beneficial owner of such shares. Pioneer and Parsley do not expect any broker non-votes at the Pioneer special meeting or the Parsley special meeting because the rules applicable to banks, brokers and other nominees only provide brokers with discretionary authority to vote on proposals that are considered routine, whereas each of the proposals to be presented at the Pioneer special meeting and the Parsley special meeting are considered non-routine under NYSE rules. As a result, no broker will be permitted to vote your shares of Pioneer common stock or Parsley common stock at the applicable special meeting without receiving instructions. Failure to instruct your broker on how to vote your shares will have (i) no effect on the Pioneer stock issuance proposal, for Pioneer stockholders, and (ii) the same effect as a vote “against” the Parsley merger proposal and no effect on the Parsley compensation proposal, for Parsley stockholders.

For additional information on voting procedures, please see “Pioneer Special Meeting” and “Parsley Special Meeting.”

Q:

What do I do if I am a Pioneer stockholder and I want to revoke my proxy?

A:

Pioneer stockholders of record may revoke or change a previously delivered proxy at any time before the meeting by (i) delivering another proxy with a later date to Pioneer’s corporate secretary at Pioneer’s principal executive offices at 777 Hidden Ridge, Irving, Texas 75038 no later than [    :    ] a.m. Central Time on [            ], 2021, (ii) voting by proxy again via the internet or by telephone, or (iii) delivering written notice of revocation of the merger.proxy to Pioneer’s corporate secretary at Pioneer’s principal executive offices at 777 Hidden Ridge, Irving, Texas 75038 no later than [    :    ] a.m. Central Time on [            ], 2021.

All Pioneer stockholders may also revoke their proxies by attending the Pioneer special meeting virtually, using his, her or its unique 16-digit control number and voting their shares online during the meeting. Note that attendance at the virtual Pioneer special meeting will not, in and of itself, revoke a valid proxy that was previously delivered unless you give written notice of revocation to the Pioneer corporate secretary before the proxy is exercised or unless you vote your shares online during the Pioneer special meeting.

If a Pioneer stockholder holds shares through a bank, broker or other nominee, such stockholder may change or revoke his, her or its voting instructions before the Pioneer special meeting by providing instructions again through the means specified on his, her or its voting instruction form (with most having the option to do so by internet, telephone or mail), which must be received before 10:59 p.m. Central Time on [            ], 2021.

For additional information, please see “Pioneer Special Meeting.”

xiv


Q:

What do I do if I am a Parsley stockholder and I want to revoke my proxy?

A:

Parsley stockholders of record may revoke or change a previously delivered proxy at any time before the meeting by (i) delivering another proxy with a later date to Parsley’s corporate secretary at Parsley’s principal executive offices at 303 Colorado Street, Austin, Texas 78701 no later than [    :    ] a.m. Central Time on [            ], 2021, (ii) voting by proxy again via the internet or by telephone, or (iii) delivering written notice of revocation of the proxy to Parsley’s corporate secretary at Parsley’s principal executive offices at 303 Colorado Street, Austin, Texas 78701 before the beginning of the Parsley special meeting no later than [    :    ] a.m. Central Time on [            ], 2021.

All Parsley stockholders may also revoke their proxies by attending the Parsley special meeting virtually, using his, her or its unique 16-digit control number and voting their shares online during the meeting. Note that attendance at the virtual Parsley special meeting will not, in and of itself, revoke a valid proxy that was previously delivered unless you give written notice of revocation to the Parsley corporate secretary before the proxy is exercised or unless you vote your shares online during the Parsley special meeting.

If a Parsley stockholder holds shares through a bank, broker or other nominee, such stockholder may change or revoke his, her or its voting instructions before the Parsley special meeting by providing instructions again through the means specified on his, her or its voting instruction form (with most having the option to do so by internet, telephone or mail), which must be received before 10:59 p.m. Central Time on [                ], 2021.

For additional information, please see “Parsley Special Meeting.”

Q:

Are there any risks that I should consider as a Pioneer stockholder or Parsley stockholder in deciding how to vote?

A:

Yes. You should read and carefully consider the risks set forth in “Risk Factors.” You also should read and carefully consider the risk factors of Pioneer and Parsley contained in the documents that are incorporated by reference into this joint proxy statement/prospectus.

Q:    What

happens if I sell or otherwise transfer my shares of Pioneer common stock before the Pioneer special meeting?

A:

The Pioneer record date is prior to the date of the Pioneer special meeting. If you sell or otherwise transfer your shares of Pioneer common stock after the Pioneer record date but before the Pioneer special meeting, unless special arrangements (such as provision of a proxy) are made between you and the person to whom you transfer your shares of Pioneer common stock, you will retain your right to vote such shares at the Pioneer special meeting but will otherwise transfer ownership of and the economic interest in your shares of Pioneer common stock.

 

Q:

What will happen to Pioneer Southwesthappens if I sell or otherwise transfer my shares of Parsley common stock before the merger does not occur?Parsley special meeting?

 

A:

The Parsley record date is prior to the date of the Parsley special meeting. If you sell or otherwise transfer your shares of Parsley common stock after the merger does not occur, Pioneer Southwest expects that it will continue to operate its businessParsley record date but before the Parsley special meeting, unless special arrangements (such as it has in the past, including the continuationprovision of its three-rig drilling program through the remainder of 2013. Pioneer Southwest expects that quarterly distributions of available cash will continue if the merger agreement is terminateda proxy) are made between you and the merger does not occur, consistent with past practiceperson to whom you transfer your shares of Parsley common stock, you will retain your right to vote such shares at the Parsley special meeting but will otherwise transfer ownership of and the economic interest in accordance with the termsyour shares of Pioneer Southwest’s partnership agreement. In the future, because Pioneer Southwest’s proved reserves and production decline continually over time, Pioneer Southwest’s ability to maintain current levels of quarterly cash distributions will depend on its ability to mitigate these declines through drilling initiatives, production enhancement, and/or acquisitions of income producing assets that provide adequate cash margins, as well as on the prices of oil, NGLs and gas and on the availability of capital, such as Pioneer Southwest’s credit facility or future private and public equity and debt offerings. At current quoted forward NYMEX prices for oil, NGLs and gas and current acquisition and drilling costs, there is significant uncertainty regarding Pioneer Southwest’s ability to maintain or increase its levels of quarterly distributions in the long term. Furthermore, Pioneer Southwest may be unable to maintain current levels of distributions without incurring significant additional debt. See “Risk Factors — Risks Related to Pioneer Southwest’s Business and Common Units if the Merger Does Not Occur.”Parsley common stock.

xv


Q:Who do I call

What happens if I have further questions about voting,sell or otherwise transfer my shares of Parsley Class A common stock or Parsley LLC units before the Pioneer Southwest special meeting orcompletion of the merger?mergers?

 

A:

Only Parsley Class A stockholders and Parsley LLC unitholders as of immediately prior to the effective time will become entitled to receive the merger consideration. If you sell your shares of Parsley Class A common stock or Parsley LLC units prior to the completion of the mergers, you will not be entitled to receive the merger consideration by virtue of the mergers.

Q:

Do any of the officers or directors of Parsley have interests in the mergers that may differ from or be in addition to my interests as a Parsley stockholder?

A:

Yes. In considering the recommendation of the Parsley board that Parsley stockholders vote to approve the Parsley merger proposal and the Parsley compensation proposal, Parsley stockholders should be aware that, aside from their interests as stockholders of Parsley, some of Parsley’s directors and executive officers have interests in the mergers that may be different from, or in addition to, the interests of Parsley stockholders generally. The Parsley board was aware of and considered these interests, among other matters, in evaluating and negotiating the merger agreement and the transactions contemplated therein, in approving the mergers, and in recommending the approval of the Parsley merger proposal and the Parsley compensation proposal.

For more information on these interests and quantification of certain of these interests, please see “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers.”

Q:

If I am a Pioneer Southwest unitholdersstockholder and I oppose the Pioneer stock issuance proposal or if I am a Parsley stockholder and I oppose the Parsley merger proposal, but all such proposals are approved, what are my rights?

A:

Under Delaware law, Pioneer stockholders are not entitled to dissenters’ or appraisal rights in connection with the issuance of shares of Pioneer common stock as contemplated by the merger agreement. Pioneer stockholders may vote against the Pioneer stock issuance proposal if they do not favor such proposal.

Because shares of Parsley Class A common stock are listed on the NYSE and holders of eligible shares of Parsley Class A common stock are not required to receive consideration other than shares of Pioneer common stock, which are listed on the NYSE, and any cash received in lieu of fractional shares of Pioneer common stock in the mergers, Parsley Class A stockholders are not entitled to exercise dissenters’ or appraisal rights under Delaware law in connection with the mergers. However, Parsley Class B stockholders who do not vote in favor of the Parsley merger proposal will be entitled to exercise appraisal rights under the DGCL, solely with respect to their shares of Parsley Class B common stock (and not, for the avoidance of doubt, with respect to any shares of Parsley Class A common stock or Parsley LLC units held by them), in connection with the mergers if they take certain actions and meet certain conditions set forth in Section 262 of the DGCL (“Section 262”). Failure to comply with Section 262 may result in a Parsley Class B stockholder waiving, or being unable to exercise, appraisal rights. Parsley stockholders may vote against the Parsley merger proposal if they do not favor the mergers.

For more information regarding appraisal rights, please see “The Mergers—Appraisal Rights or Dissenters’ Rights”. In addition, a copy of Section 262 is attached as Annex F to this joint proxy statement/prospectus.

Q:

Where can I find voting results of the Pioneer special meeting and the Parsley special meeting?

A:

Pioneer and Parsley intend to announce their respective preliminary voting results at each of the Pioneer and Parsley special meetings and disclose their respective final voting results in Current Reports on Form 8-K that will be filed with the SEC following the Pioneer and Parsley special meetings. All reports that Pioneer and Parsley file with the SEC are publicly available when filed. Please see “Where You Can Find More Information.”

xvi


Q:

How can I find more information about Pioneer and Parsley?

A:

You can find more information about Pioneer and Parsley from various sources described in “Where You Can Find More Information.”

Q:

Who can answer any questions I may have about the Pioneer special meeting, the Parsley special meeting or the transactions contemplated by the merger agreement, including the mergers and the stock issuance?

A:

If you have any questions about the Pioneer special meeting, the Parsley special meeting, the mergers, the Pioneer stock issuance proposal, the Parsley merger includingproposal, the procedures for voting their Pioneer Southwest common units,Parsley compensation proposal or who desirehow to submit your proxy, or if you need additional copies of this joint proxy statement/prospectus or additionaldocuments incorporated by reference herein, the applicable enclosed proxy cards,card or voting instructions, you should contact:

D. F.

For Pioneer stockholders:

Pioneer Natural Resources Company

Attn: Investor Relations

777 Hidden Ridge

Irving, Texas 75038

(972) 969-4019

D.F. King & Co., Inc.

48 Wall Street, 22nd Floor

New York, NY 10005

Banks and Brokers Call Collect: (212) 269-5550

All Others Call Toll-Free: (800) 859-8509

Email: pxd@dfking.com

For Parsley stockholders:

Parsley Energy, Inc.

Attn: Investor Relations

303 Colorado Street

Austin, Texas 78701

(737) 704-2300

Mackenzie Partners, Inc.

1407 Broadway, 27th Floor

New York, NY 10018

Banks and Brokers Call Collect: (212) 929-5500

All Others Call Toll-Free: (800) 322-2885

Email: proxy@mackenziepartners.com

48 Wall Street, 22nd Floorxvii

New York, New York 10005

Banks and Brokers call: (212) 269-5550

All others call toll-free: (800) 758-5880

Email: pse@dfking.com

or

Pioneer Southwest Energy Partners L.P.

5205 N. O’Connor Blvd., Suite 200

Irving, Texas 75039

Attention: Investor Relations

Telephone: (972) 969-4019


SUMMARY

ThisThe following summary highlights some of theselected information described in more detail elsewhere in this joint proxy statement/prospectus. Itprospectus and the documents incorporated by reference into this joint proxy statement/prospectus and may not contain all of the information that ismay be important to you. To understand the mergermergers and the matters being voted on by Pioneer and Parsley stockholders at their respective special meetings more fully, and forto obtain a more complete description of the legal terms of the merger agreement and the agreements related thereto, you should carefully read carefully this proxy statement/prospectus,entire document, including the annexes and the documents incorporated by reference herein and the Annexes to which Pioneer and Parsley refer you. Each item in this proxy statement/prospectus, including the full textsummary includes a page reference directing you to a more complete description of the merger agreement included as Annex A. Please also readthat topic. See “Where You Can Find More Information” on page 133.Information.”

The Merger Parties’ BusinessesParties

Pioneer Natural Resources Company

Pioneer a Delaware corporation formed in 1997, is a large independent oil and gas exploration and production company with operationsthat explores for, develops and produces oil, natural gas liquids (“NGL”) and gas in the United States.Permian Basin in West Texas. Pioneer is a holding company whose assets consist of directDelaware corporation, and indirect ownership interests in, and whose business is conducted substantially through, its subsidiaries. Pioneer’s common stock ishas been listed and traded on the NYSE under the ticker symbol “PXD.”

“PXD” since its formation in 1997. Pioneer’s missionprincipal executive office is to enhance stockholder investment returns through strategies that maximize its long-term profitability and net asset value. The strategies employed to achieve this mission are predicated on maintaining financial flexibility, capital allocation discipline and enhancing net asset value through accretive drilling programs, joint ventures and acquisitions. These strategies are anchored primarily by drilling in the Spraberry oil field located in West Texas (the “Spraberry field”), the liquid-rich Eagle Ford Shale field located in South Texas, the liquid-rich Barnett Shale Combo field in North Texas and, to a lesser extent, Alaska. Complementing these growth areas, Pioneer has oil and gas production activities and development opportunities in the Raton gas field located in southern Colorado, the Hugoton gas and liquid field located in southwest Kansas, the West Panhandle gas and liquid field located in the Texas Panhandle, and the Edwards gas field located in South Texas.

As of December 31, 2012, Pioneer had proved oil, NGL and gas reserves of 1.1 billion BOE. For the year ended December 31, 2012, Pioneer had net income attributable to Pioneer common stockholders of $192.3 million, or $1.50 per diluted share, and revenues and other income of $3.2 billion. For the six months ended June 30, 2013, Pioneer had net income attributable to common stockholders of $437.9 million, or $3.19 per diluted share, and revenues and other income of $2.0 billion.

Pioneer’s executive offices are located at 5205 N. O’Connor Blvd., Suite 200,777 Hidden Ridge, Irving, Texas, 75039. Pioneer’s75038 and its telephone number is (972) 444-9001. Pioneer also maintains an office in Midland, Texas and field offices in its area of operation.

Additional information about Pioneer and its subsidiaries is included in documents incorporated by reference in this joint proxy statement/prospectus. See “Where You Can Find More Information” beginning on page 209.

Pioneer Southwest Energy Partners L.P.Pearl First Merger Sub Inc.

Merger Sub Inc., a direct wholly-owned subsidiary of Pioneer, Southwestis a Delaware corporation formed on October 16, 2020, for the purpose of effecting the first merger. Under the merger agreement, Merger Sub Inc. will merge with and into Parsley, with Parsley surviving the merger as the surviving corporation and a direct wholly-owned subsidiary of Pioneer. Merger Sub Inc. has not conducted any activities other than those incidental to its formation and the matters contemplated by the merger agreement, including the preparation of applicable regulatory filings in connection with the mergers.

Pearl Opco Merger Sub LLC

Opco Merger Sub, a direct wholly-owned subsidiary of Pioneer, is a Delaware limited partnership that wasliability company formed in June 2007 by Pioneer to own, acquire, exploreon October 16, 2020, for the purpose of effecting the Opco merger. Under the merger agreement, Opco Merger Sub will merge with and develop oilinto Parsley LLC, with Parsley LLC surviving the merger as the surviving company and gas assets in Pioneer Southwest’s area of operations.

All of Pioneer Southwest’s properties are located in the Spraberry field. Pioneer Southwest’s only operating segment is oila direct and gas producing activities. As of December 31, 2012, Pioneer Southwest had proved oil, NGL and gas reserves of 49.4 million BOE. For the year ended December 31, 2012, Pioneer Southwest had net income of $107.6 million, or $3.00 per common unit, and total revenues and other income of $208.3 million. For the six months ended June 30, 2013, Pioneer Southwest had net income of $47.1 million, or $1.31 per common unit, and total revenues and other income of $105.0 million.

Pioneer Southwest’s executive offices are located at 5205 N. O’Connor Blvd., Suite 200, Irving, Texas 75039. Pioneer Southwest’s telephone number is (972) 969-3586.

Relationship of Pioneer and Pioneer Southwest

Pioneer and Pioneer Southwest are closely related. Pioneer formed Pioneer Southwest in 2007, and Pioneer Southwest completed its initial public offering in 2008. The operations and activities of Pioneer Southwest are managed by its general partner, Pioneer Southwest GP, an indirect wholly-owned subsidiary of Pioneer. Opco Merger Sub has not conducted any activities other than those incidental to its formation and the matters contemplated by the merger agreement, including the preparation of applicable regulatory filings in connection with the mergers.

Pearl Second Merger Sub LLC

Merger Sub LLC, a direct wholly-owned subsidiary of Pioneer, indirectly ownsis a 52.5%Delaware limited liability company formed on October 16, 2020, for the purpose of effecting the subsequent merger. Under the merger agreement, following the consummation of the first merger and the Opco merger, Parsley will merge with and into Merger



Sub LLC, with Merger Sub LLC surviving the merger as the surviving company and a direct wholly-owned subsidiary of Pioneer. Merger Sub LLC has not conducted any activities other than those incidental to its formation and the matters contemplated by the merger agreement, including the preparation of applicable regulatory filings in connection with the mergers.

Parsley Energy, Inc.

Parsley is an independent oil and natural gas company focused on the acquisition, development, exploration and production of unconventional oil and natural gas properties in the Permian Basin. The Permian Basin is located in west Texas and southeastern New Mexico and is characterized by high oil and liquids-rich natural gas content, multiple vertical and horizontal target horizons, extensive production histories, long-lived reserves and historically high drilling success rates. Parsley’s properties are located in two sub areas of the Permian Basin, the Midland and Delaware Basins, where, given the associated returns, it focuses predominantly on horizontal development drilling. Shares of Parsley Class A common stock are traded on the NYSE under the symbol “PE”. The principal executive offices of Parsley are located at 303 Colorado Street, Austin, Texas 78701 and its telephone number is (737) 704-2300.

Additional information about Parsley and its subsidiaries is included in documents incorporated by reference in this joint proxy statement/prospectus. See “Where You Can Find More Information” beginning on page 209.

Parsley Energy, LLC

Parsley LLC is a Delaware limited liability company and majority-owned subsidiary of Parsley. Parsley’s sole material asset as of November 13, 2020 consisted of 378,665,103 Parsley LLC units and Parsley, as the sole managing member of Parsley LLC, holds a controlling equity interest in Pioneer Southwest, includingParsley LLC and manages the 0.1% general partner interest. Pioneer Southwest,business and affairs of Parsley LLC and its operating subsidiary and Pioneer Southwest GP have no employees. Pioneer Southwest, Pioneer Southwest GP and Pioneer have entered into an administrative services agreement pursuant to which Pioneer manages all of Pioneer Southwest’s assets and performs administrative services for Pioneer Southwest. Please see “Summary — Organizational Chart — Before the Merger.”subsidiaries.

EachThe Mergers (See page 55)

Upon satisfaction or waiver of the executive officers of Pioneer Southwest GP is also an executive officer of Pioneer. For information about the common executive officers of Pioneer and Pioneer Southwest GP and the resulting interests of Pioneer and Pioneer Southwest GP directors and executive officersconditions to closing in the merger, please read “Certain Relationships; Interests of Certain Persons in the Merger.”

Structure of the Merger

Pursuant to the merger agreement, at the effective time, ofMerger Sub Inc. will merge with and into Parsley, with Parsley surviving the merger MergerCo,as the surviving corporation and a direct wholly-owned subsidiary of Pioneer,Pioneer. Simultaneously with the first merger, Opco Merger Sub will merge with and into Pioneer SouthwestParsley LLC, with Pioneer SouthwestParsley LLC surviving the merger as anthe surviving company and a direct and indirect wholly-owned subsidiary of Pioneer,Pioneer. Immediately following the effective time, Parsley, as the surviving corporation of the first merger, will merge with and into Merger Sub LLC, with Merger Sub LLC surviving the merger as a direct wholly-owned subsidiary of Pioneer. At the effective time, each eligible share of Parsley Class A common stock and each outstanding Pioneer Southwest commoneligible Parsley LLC unit other than those Pioneer Southwest common units owned by Pioneer USA, will be cancelled and converted automatically into the right to receive 0.2325 of a share of Pioneer common stock. This merger consideration represents a 19% premium to the closing price of the Pioneer Southwest common units based on the closing prices of the Pioneer Southwest common units and0.1252 shares of Pioneer common stock, on May 6, 2013, the last trading day before Pioneer announced its proposal to acquire allwith cash paid in lieu of the Pioneer Southwest common units owned by the public.

If the exchange ratio results in a Pioneer Southwest unitholder being entitled to receive a fractionissuance of a share of Pioneer common stock, that Pioneer Southwest unitholder will not receive any fractional share of Pioneer common stock. In lieu of receiving any fractional share of Pioneer common stock to which any Pioneer Southwest unitholder would otherwise have been entitled, after aggregating all fractions of shares to which such unitholder would be entitled, any fractional share will be rounded up to a whole share of Pioneer common stock.

Once the merger is completed, former Pioneer Southwest unitholders who surrender their Pioneer Southwest common units in accordance with the merger agreement will be eligible, in their capacity as Pioneer stockholders, to receive dividends declared by the Pioneer Board on Pioneer common stock, if any, after the effective time of the merger. For a description of Pioneer’s dividend policy, please read “Summary — Market Prices and Dividend and Distribution Information — Pioneer’s Dividend Policy.”

Based on the 16,992,500 Pioneer Southwest common units outstanding on September 12, 2013, and eligible to be converted into shares of Pioneer common stock, pursuantand each issued and outstanding share of Parsley Class B common stock will automatically be cancelled for no additional consideration. In addition, Parsley and Pioneer will take, or cause to be taken, all actions necessary so that at the merger agreement (which number does not includeeffective time, Parsley’s issued and outstanding time-based restricted stock unit awards, performance-based restricted stock unit awards, time-based restricted stock awards and performance-based restricted stock awards will be treated as described in “The Merger Agreement—Treatment of Parsley Equity-Based Awards.”

Pioneer Special Meeting (See page 40)

The Pioneer special meeting will be a virtual meeting conducted exclusively via live webcast starting at [    :    ] a.m. Central Time (with log-in beginning at [    :    ] a.m. Central Time) on [                ], 2021. Pioneer



stockholders will be able to attend the Pioneer Southwest common units ownedspecial meeting online and vote shares electronically at the meeting by going to www.virtualshareholdermeeting.com/PXD21SM and entering the 16-digit control number included on the proxy card or voting instruction form you received. Because the Pioneer USA),special meeting is completely virtual and without giving effectbeing conducted via live webcast, stockholders will not be able to roundingattend the meeting in person. The Pioneer special meeting is being held to consider and vote on a proposal to approve the issuance of fractional shares, Pioneer expects to issue approximately 3,950,757 shares of Pioneer common stock in connection with the merger. This number will represent approximately 3% of Pioneer’s outstanding shares of common stock after the merger, based on 138,864,386mergers and other shares of Pioneer common stock outstanding as of September 12, 2013.

Pioneer plans to pay off the Pioneer Southwest credit facility shortly following the closing of the merger, and, through a separate, independent transaction, expects to merge Pioneer Southwest GP, Pioneer Southwest and their subsidiaries into Pioneer USA after the closing of the merger.

Voting Agreement

Inreserved for issuance in connection with the merger agreement, Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP entered into the voting agreement on August 9, 2013. Pursuantmergers, in each case pursuant to the voting agreement, Pioneer, Pioneer USA and MergerCo have agreed to vote the Pioneer Southwest common units owned by them in favor of the merger proposal, including the 18,721,200 Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4% of the outstanding Pioneer Southwest common units and therefore constitute a sufficient number of Pioneer Southwest common units to approve the merger proposal at the Pioneer Southwest special meeting. The voting agreement will terminate upon the earliest of (i) the completion of the merger, (ii) the terminationterms of the merger agreement, which is referred to as the Pioneer stock issuance proposal.

The record date for the determination of Pioneer stockholders entitled to notice of and (iii)to vote at the mutual written agreementPioneer special meeting is the close of business on [                ], 2020. Only Pioneer stockholders who held Pioneer common stock of record on the Pioneer record date are entitled to vote at the Pioneer special meeting or any adjournments or postponements of the parties.

DirectorsPioneer special meeting. Each issued and Executive Officersoutstanding share of Pioneer Followingcommon stock entitles its holder of record to one vote on each matter to be considered at the MergerPioneer special meeting.

The directors and executive officers of each ofIn order for business to be conducted at the Pioneer andspecial meeting, a quorum must be present. A quorum at the Pioneer Southwest GP prior tospecial meeting requires the merger are expected to continue as the directors and executive officers of Pioneer and Pioneer Southwest GP, respectively, following the merger, with the exceptionpresence of the four independent directorsholders of Pioneer Southwest GP who are expected to resign following the merger.

Market Prices of Shares of Pioneer Common Stock and Pioneer Southwest Common Units Before Announcementa majority of the Proposed Merger

Pioneer’s common stock is traded on the NYSE under the ticker symbol “PXD.” Pioneer Southwest’s common units are traded on the NYSE under the ticker symbol “PSE.” The closing price oftotal issued and outstanding shares of Pioneer common stock entitled to vote, present virtually or represented by proxy, at the Pioneer special meeting. Abstentions will be counted for purposes of determining whether there is a quorum at the Pioneer special meeting. Because it is expected that the only matter to be voted on May 6, 2013 (the last full trading day beforeat the Pioneer announced its proposalspecial meeting will be non-routine under NYSE rules, brokers will not have discretionary authority to acquire allvote on the Pioneer stock issuance proposal; therefore, if you do not provide voting instructions to your broker, bank or other nominee, your shares will not count towards determining whether a quorum is present and your shares will not be voted on the Pioneer stock issuance proposal. If a quorum is not present or represented or if there are not sufficient votes for the approval of the Pioneer Southwest common units owned bystock issuance proposal, Pioneer expects that the public) was $133.54, and the closing price of Pioneer Southwest common units on May 6, 2013 was $26.00.

Pioneer Southwest Special Meeting

Where and When

The Pioneer Southwest special meeting will take place atbe adjourned by the offices of Pioneer Southwest, 5205 N. O’Connor Blvd., Suite 200, Irving, Texas 75039, on[], 2013, at[], local time.

What You Are Being Asked to Vote On

At the Pioneer Southwest special meeting, Pioneer Southwest unitholders will vote on the merger proposal and may vote on the adjournment proposal.

Who May Vote

You may vote at the Pioneer Southwest special meeting if you owned Pioneer Southwest common units at the close of business on the record date,[], 2013. On that date, there were 35,713,700 Pioneer Southwest common units outstanding. You may cast one vote for each outstanding Pioneer Southwest common unit that you owned on the record date.

What Vote is Needed

The merger proposal will be approved if the holders, as of the record datechairman of the Pioneer Southwest special meeting to solicit additional proxies. At any subsequent reconvening of the Pioneer special meeting at which a quorum shall be present or represented, all proxies will be voted in the same manner as the manner in which such proxies would have been voted at the original convening of the Pioneer special meeting, except for any proxies that have been validly revoked or withdrawn prior to the subsequent meeting.

Approval of the Pioneer stock issuance proposal requires the affirmative vote of holders of a majority of the outstandingshares of Pioneer Southwest common units vote in favor ofstock present virtually during the merger proposalPioneer special meeting or represented by proxy at the Pioneer Southwest special meeting. Failuresmeeting and entitled to vote abstentions and broker non-votes (if any)thereon. Accordingly, a Pioneer stockholder’s abstention from voting will have the same effect as a vote against the merger proposal. Pursuant to the voting agreement, Pioneer, Pioneer USA and MergerCo have agreed to vote“against” the Pioneer Southwest common units owned by them in favorstock issuance proposal, while a broker non-vote or the failure of the merger

proposal, including the 18,721,200a Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4% of the outstanding Pioneer Southwest common units and therefore constitute a sufficient number of Pioneer Southwest common unitsstockholder to approve the merger proposal atattend the Pioneer Southwest special meeting.

The adjournment proposalmeeting and vote will be approved ifhave no effect on the holders, as of the record dateoutcome of the Pioneer Southweststock issuance proposal.

As of the Pioneer record date, there were [                ] shares of Pioneer common stock issued and outstanding. As of the Pioneer record date, Pioneer directors and executive officers, and their affiliates, as a group, beneficially owned and were entitled to vote [                ] shares of Pioneer common stock, or approximately [_]% of the voting power of the issued and outstanding shares of Pioneer common stock.

The Pioneer board unanimously recommends that the Pioneer stockholders vote “FOR” the Pioneer stock issuance proposal.

For additional information on the recommendation of the Pioneer board, please see “The Mergers—Recommendation of the Pioneer Board and Reasons for the Mergers.”



Parsley Special Meeting (See page 46)

The Parsley special meeting will be a virtual meeting conducted exclusively via live webcast starting at [    :    ] a.m. Central Time (with log-in beginning at [    :    ] a.m. Central Time) on [                ], 2021. Parsley stockholders will be able to attend the Parsley special meeting online and vote shares electronically at the meeting by going to www.virtualshareholdermeeting.com/PE21SM and entering the 16-digit control number included on the proxy card or voting instruction form you received. Because the Parsley special meeting is completely virtual and being conducted via live webcast, stockholders will not be able to attend the meeting in person. The Parsley special meeting is being held to consider and vote on the following proposals:

Parsley Merger Proposal: To approve and adopt the merger agreement, a copy of which is attached as Annex A to this joint proxy statement/prospectus, and the transactions contemplated thereby (including the integrated mergers), pursuant to which, among other things, upon consummation of the mergers (i) each eligible share of Parsley Class A common stock will be converted automatically into the right to receive a number of shares of Pioneer common stock equal to the exchange ratio, with cash paid in lieu of any fractional shares of Pioneer common stock, if any, (ii) each eligible Parsley LLC unit will be converted into the right to receive a number of shares of Pioneer common stock equal to the exchange ratio, with cash paid in lieu of any fractional shares of Pioneer common stock, if any, and (iii) each share of Parsley Class B common stock will automatically be cancelled for no additional consideration therefor.

Parsley Compensation Proposal: To approve, on a non-binding advisory basis, the compensation that may be paid or become payable to Parsley’s NEOs that is based on or otherwise relates to the mergers, discussed in the section titled “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers.”

The record date for the determination of the Parsley stockholders entitled to receive notice of, and to vote at, the Parsley special meeting is the close of business on [            ], 2020. Only Parsley stockholders who held Parsley common stock of record on the Parsley record date are entitled to vote at the Parsley special meeting or any adjournments or postponements of the Parsley special meeting. Each issued and outstanding share of Parsley common stock entitles its holder of record to one vote on each matter to be considered at the Parsley special meeting. Parsley stockholders are entitled to vote on each proposal presented.

In order for business to be conducted at the Parsley special meeting, a quorum must be present. A quorum at the Parsley special meeting requires the presence of the holders of a majority of the total issued and outstanding shares of Parsley common stock entitled to vote, present virtually or represented by proxy, at the Parsley special meeting. Abstentions will be counted for purposes of determining whether there is a quorum at the Parsley special meeting. Shares represented by broker non-votes will not be considered present and entitled to vote at the Parsley special meeting for the purpose of determining the presence of a quorum. Because it is expected that all of the matters to be voted on at the Parsley special meeting will be non-routine under NYSE rules, brokers will not have discretionary authority to vote on any such proposal; therefore, if you do not provide voting instructions to your broker, bank or other nominee, your shares will not count towards determining whether a quorum is present and your shares will not be voted at the Parsley special meeting. If a quorum is not present or represented or if there are not sufficient votes for the approval of the Parsley merger proposal, Parsley expects that the Parsley special meeting will be adjourned by the chairman of the Parsley special meeting to solicit additional proxies. At any subsequent reconvening of the Parsley special meeting at which a quorum shall be present or represented, all proxies will be voted in the same manner as the manner in which such proxies would have been voted at the original convening of the Parsley special meeting, except for any proxies that have been validly revoked or withdrawn prior to the subsequent meeting.

Approval of the Parsley merger proposal requires the affirmative vote of the holders of a majority of the outstanding Pioneer Southwestshares of Parsley common units vote in favor of the adjournment proposal at the Pioneer Southwest special meeting. Failuresstock entitled to vote abstentionson the proposal. Accordingly, a Parsley



stockholder’s abstention from voting, a broker non-vote or the failure of a Parsley stockholder to attend the Parsley special meeting and broker non-votes (if any)vote will have the same effect as a vote against this“against” the Parsley merger proposal.

OfApproval of the Pioneer SouthwestParsley compensation proposal requires the affirmative vote of the holders of a majority of the shares of Parsley common unitsstock present virtually during the Parsley special meeting or represented by proxy at the Parsley special meeting and entitled to vote on thereon. Accordingly, a Parsley stockholder’s abstention from voting will have the proposalssame effect as a vote “against” the Parsley compensation proposal, while a broker non-vote or the failure of a Parsley stockholder to attend the Parsley special meeting and vote will have no effect on the outcome of the Parsley compensation proposal.

As of the Parsley record date, there were [                ] shares of Parsley Class A common stock and [                ] shares of Parsley Class B common stock issued and outstanding, held by [                ] and [                ] holders of record, respectively. Each issued and outstanding share of Parsley common stock entitles its holder of record to one vote on each matter to be considered at the Pioneer SouthwestParsley special meeting, 0.5% of such Pioneer Southwest common unitsmeeting. Parsley stockholders are held, and eligibleentitled to be voted, by certain executive officers and directors, and their affiliates, of Pioneer or Pioneer Southwest (not including the parties to the voting agreement).

Recommendation to Pioneer Southwest Unitholdersvote on each proposal presented.

The membersParsley board unanimously recommends that the Parsley stockholders vote “FOR” the Parsley merger proposal and “FOR” the Parsley compensation proposal.

For additional information on the recommendation of the Parsley board, please see “The Mergers—Recommendation of the Parsley Board and Reasons for the Mergers.”

Voting and Support Agreement with Quantum

In connection with the execution of the merger agreement, Q-Jagged Peak Energy Investment Partners, LLC (“Quantum”) entered into a voting and support agreement with Pioneer Southwest Conflicts Committee considered(the “Quantum voting agreement”) with respect to 65,412,650 shares of Parsley Class A common stock beneficially owned by Quantum, and any additional shares of Parsley Class A common stock, shares of Parsley Class B common stock or Parsley LLC units of which Quantum acquires voting power in between the benefitsdate of the Quantum voting agreement and the earlier of the effective time and the termination of the Quantum voting agreement (collectively, the “Quantum voting agreement shares”), wherein Quantum agreed to vote all of the Quantum voting agreement shares (i) in favor of the adoption of the merger agreement and the mergerapproval of any other matters necessary for consummation of the transactions as well as the associated risks and unanimously approvedcontemplated by the merger agreement, including the mergers, subject to certain exceptions, and (ii) against specified actions that could reasonably be expected to impede, interfere with, delay, discourage, postpone or adversely affect the merger transactions and determined thatmergers or any other transaction contemplated by the merger agreement, including specified actions that contemplate alternative transactions. Under the Quantum voting agreement, Quantum has granted to Pioneer an irrevocable proxy to vote the Quantum voting agreement shares as provided above. Subject to certain exceptions, the Quantum voting agreement restricts Quantum from transferring Parsley common stock until the earlier of the termination of the Quantum voting agreement and the merger transactions are faireffective time. As of the Parsley record date, Quantum beneficially owns and reasonableis entitled to andvote in the best interestsaggregate approximately [    ]% of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. This actioncombined voting power of the issued and outstanding shares of Parsley common stock entitled to vote at the Parsley special meeting. For more information, please see the section titled “Parsley Special Meeting—Voting and Support Agreement with Quantum.”

Voting and Support Agreement with Bryan Sheffield

In connection with the execution of the merger agreement, Bryan Sheffield, Parsley’s Executive Chairman and Chairman of the Parsley board, entered into a voting and support agreement with Pioneer Southwest Conflicts Committee constitutes “Special Approval”(the “Sheffield voting agreement” and, together with the Quantum voting agreement, the “voting agreements”) with respect to all shares of Parsley Class A common stock, shares of Parsley Class B common stock and Parsley LLC units



beneficially owned by Mr. Sheffield, and any additional shares of Parsley Class A common stock, shares of Parsley Class B common stock and Parsley LLC units of which Mr. Sheffield acquires voting power in between the date of the Sheffield voting agreement and the earlier of the effective time and the termination of the Sheffield voting agreement (collectively, the “Sheffield voting agreement shares”), wherein Mr. Sheffield agreed to vote all of the Sheffield voting agreement shares (i) in favor of the adoption of the merger agreement and the mergerapproval of any other matters necessary for consummation of the transactions under Pioneer Southwest’s partnership agreement. The Pioneer Southwest Conflicts Committee recommended that the Pioneer Southwest GP Board make the same approval and determination as the Pioneer Southwest Conflicts Committee. Based in part on the Pioneer Southwest Conflicts Committee’s approval and determination, Special Approval and recommendation, the Pioneer Southwest GP Board approvedcontemplated by the merger agreement, including the mergers, subject to certain exceptions, and (ii) against specified actions that could reasonably be expected to impede, interfere with, delay, discourage, postpone or adversely affect the merger transactions (such approval being unanimous among the independent directors, with the non-independent directors of Pioneer Southwest GP recusing themselves from the consideration and vote on such approval) and determined thatmergers or any other transaction contemplated by the merger agreement, including specified actions that contemplate alternative transactions. Under the Sheffield voting agreement, Mr. Sheffield has granted to Pioneer an irrevocable proxy to vote the Sheffield voting agreement shares as provided above. Subject to certain exceptions, the Sheffield voting agreement restricts Mr. Sheffield from transferring Parsley common stock or Parsley LLC units until the earlier of the termination of the Sheffield voting agreement and the merger transactions are faireffective time. As of the Parsley record date, Mr. Sheffield beneficially owns and reasonableis entitled to andvote in the best interestsaggregate approximately [__]% of the combined voting power of the issued and outstanding shares of Parsley common stock entitled to vote at the Parsley special meeting. In addition, the Sheffield voting agreement contains a lock-up agreement providing that Mr. Sheffield may not, without Pioneer’s prior written consent, subject to limited exceptions, offer, sell, transfer or otherwise dispose of more than 15% of the shares of Pioneer common stock issued to Mr. Sheffield pursuant to the terms of the merger agreement for a period of 90 days following the closing date, or more than 30% of such shares for a period of 180 days following the closing date. For more information, please see the section titled “Parsley Special Meeting—Voting and Support Agreement with Bryan Sheffield.”

Opinions of Pioneer’s Financial Advisors (See page 92 and Annexes B and C)

Goldman Sachs & Co. LLC (See page 92 and Annex B)

Pioneer engaged Goldman Sachs & Co. LLC (“Goldman Sachs”) to act as Pioneer’s financial advisor for purposes of the proposed mergers. At a meeting of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. The Pioneer Southwest GP Board caused Pioneer Southwest GP to approve the merger agreement and the merger transactions and directed that the merger agreement and the merger transactions be submittedboard, Goldman Sachs rendered to the Pioneer Southwest unitholders at the Pioneer Southwest special meeting for approval. The Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board recommend that the Pioneer Southwest unitholders vote in favorboard its oral opinion, subsequently confirmed by delivery of the merger proposal.

Pioneer Southwest unitholders are urged to review carefully the background and reasons for the merger described under “The Merger” and the risks associated with the merger described under “Risk Factors.”

Pioneer Southwest’s Reasons for the Merger

The Pioneer Southwest Conflicts Committee considered many factors in determining that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. For a discussion of those factors, please read “The Merger — Recommendation of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board and Reasons for the Merger.”

Opinion of the Pioneer Southwest Conflicts Committee’s Financial Advisor

The Pioneer Southwest Conflicts Committee retained Evercore to act as financial advisorwritten opinion, dated October 20, 2020, to the Pioneer Southwest Conflicts Committee in connection withboard, to the proposal by Pioneer to acquire all of the publicly held

Pioneer Southwest common units in exchange for Pioneer common stock. At the Pioneer Southwest Conflicts Committee’s meeting on August 9, 2013, Evercore rendered its oral opinion (subsequently confirmed in writing)effect that, as of thatthe date of Goldman Sachs’ written opinion and based upon and subject to the factors procedures,and assumptions qualifications and limitations set forth in itsGoldman Sachs’ written opinion, the exchange ratio set forth inpursuant to the merger agreement was fair from a financial point of view to Pioneer.

The full text of the Pioneer Southwest unaffiliated unitholders.

Evercore’swritten opinion of Goldman Sachs, dated October 20, 2020, which sets forth the assumptions made, procedures followed, matters considered, qualifications and limitations on the review undertaken in connection with the opinion, is directedattached to this joint proxy statement/prospectus as Annex B. The summary of Goldman Sachs’ opinion contained in this joint proxy statement/prospectus is qualified in its entirety by reference to the Pioneer Southwest Conflicts Committeefull text of Goldman Sachs’ written opinion. Goldman Sachs’ advisory services and opinion were provided for the independent directorsinformation and assistance of the Pioneer Southwest GP Board actingboard in their capacity as such. It does not address any aspectsconnection with its consideration of the merger other thanmergers and the exchange ratio andopinion does not constitute a recommendation as to how any Pioneer Southwest unitholderstockholder should vote with respect to the Pioneer stock issuance or any other matter.

For more information, see the section titled “The Mergers—Opinions of Pioneer’s Financial Advisors—Opinion of Goldman Sachs & Co. LLC” beginning on page 92 of this joint proxy statement/prospectus and the full text of the written opinion of Goldman Sachs attached as Annex B to this joint proxy statement/prospectus.

Morgan Stanley & Co. LLC (See page 101 and Annex C)

Pioneer engaged Morgan Stanley & Co. LLC (“Morgan Stanley”) to act as Pioneer’s financial advisor for purposes of the proposed mergers. Morgan Stanley delivered its oral opinion to the Pioneer board on October 20,



2020, which opinion was subsequently confirmed in a written opinion dated October 20, 2020, that, as of the date of such opinion, and subject to the various assumptions made, procedures followed, matters considered, and qualifications and limitations on the scope of the review undertaken by Morgan Stanley as set forth in its written opinion, the exchange ratio pursuant to the merger or any matters related thereto.agreement was fair from a financial point of view to Pioneer.

The full text of the EvercoreMorgan Stanley’s written opinion, dated aswhich describes, among other things, the assumptions made, procedures followed, matters considered and qualifications and limitations on the scope of August 9, 2013,review undertaken, is attached as Annex C to this joint proxy statement/prospectus as Annex B. Pioneer Southwest encourages its unitholders to read the opinion carefully and is incorporated by reference in its entirety. The summary of Evercore’sMorgan Stanley’s opinion set forthcontained in this joint proxy statement/prospectus is qualified in its entirety by reference to the full text of the opinion. Pioneer stockholders are encouraged to read the Morgan Stanley opinion carefully in its entirety. Morgan Stanley’s opinion was directed to the Pioneer board, in its capacity as such, and addressed only the fairness from a financial point of view to Pioneer of the exchange ratio pursuant to the merger agreement as of the date of such opinion. Morgan Stanley’s opinion did not address any other aspects or implications of the mergers. Morgan Stanley’s opinion did not in any manner address the price at which the Pioneer common stock would trade following the consummation of the mergers or at any time, and Morgan Stanley expressed no opinion or recommendation to any holder of shares of Pioneer common stock or Parsley common stock as to how such holder should vote at the Pioneer special meeting or the Parsley special meeting, respectively, or whether to take any other action with respect to the mergers.

For more information, see the section titled “The Mergers—Opinions of Pioneer’s Financial Advisors—Opinion of Morgan Stanley & Co. LLC” beginning on page 101 of this joint proxy statement/prospectus and the full text of the written opinion of Morgan Stanley attached as Annex C to this joint proxy statement/prospectus.

Certain Relationships; Opinions of Parsley’s Financial Advisors (See page 113 and Annexes D and E)

Credit Suisse Securities (USA) LLC (See page 113 and Annex D)

Parsley retained Credit Suisse Securities (USA) LLC(“Credit Suisse”) as a financial advisor to the Parsley board in connection with the proposed mergers. At a meeting of the Parsley board on October 20, 2020, Credit Suisse rendered its oral opinion to the Parsley board as to, as of October 20, 2020, the fairness, from a financial point of view, to the Parsley Class A stockholders of the exchange ratio to be received by the holders of shares of Parsley Class A common stock with respect to their shares of Parsley Class A common stock in the first merger and the fairness, from a financial point of view, to the Parsley Class B stockholders of the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger pursuant to the merger agreement. Credit Suisse subsequently confirmed this oral opinion by delivering its written opinion addressed to the Parsley board, dated October 20, 2020.

Credit Suisse’s opinion was directed to the Parsley board (in its capacity as such), and only addressed the fairness, from a financial point of view, to the Parsley Class A stockholders of the exchange ratio to be received by the Parsley Class A stockholders with respect to their shares of Parsley Class A common stock in the first merger and the fairness, from a financial point of view, to the Parsley Class B stockholders of the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger pursuant to the merger agreement, and did not address any other aspect or implication (financial or otherwise) of the mergers. The summary of Credit Suisse’s opinion in this joint proxy statement/prospectus is qualified in its entirety by reference to the full text of its written opinion, which is included as Annex D to this joint proxy statement/prospectus and sets forth the procedures followed, assumptions made, qualifications and limitations on the review undertaken and other matters considered by Credit Suisse in preparing its



opinion. However, neither Credit Suisse’s written opinion nor the summary of its opinion and the related analyses set forth in this joint proxy statement/prospectus are intended to be, and they do not constitute, advice or a recommendation to any stockholder as to how such holder should vote or act on any matter relating to the mergers.

For further information, please see “The Mergers—Opinions of Parsley’s Financial Advisors—Opinion of Credit Suisse Securities (USA) LLC” beginning on page 113 and the full text of the written opinion of Credit Suisse attached as Annex D of this joint proxy statement/prospectus.

Wells Fargo Securities, LLC (See page 122 and Annex E)

Parsley retained Wells Fargo Securities, LLC (“Wells Fargo Securities”) as a financial advisor to the Parsley board in connection with the proposed mergers. At a meeting of the Parsley board on October 20, 2020, Wells Fargo Securities rendered its oral opinion to the Parsley board that, as of such date and based upon and subject to the assumptions made, procedures followed, matters considered and limitations and qualifications on the review undertaken by Wells Fargo Securities in preparing its opinion, the exchange ratio in the proposed mergers was fair, from a financial point of view, to the Parsley Class A stockholders and holders of Parsley LLC stapled units. Wells Fargo Securities subsequently confirmed this oral opinion by delivering its written opinion to the Parsley board, dated October 20, 2020.

The full text of the written opinion of Wells Fargo Securities dated October 20, 2020, which sets forth the assumptions made, procedures followed, matters considered and limitations and qualifications on the review undertaken by Wells Fargo Securities in preparing its opinion, is attached as Annex E to this joint proxy statement/prospectus and is incorporated herein by reference. Parsley’s stockholders are urged to read the opinion in its entirety. Wells Fargo Securities’ written opinion was addressed to the Parsley board (in its capacity as such) in connection with and for the purposes of its evaluation of the proposed mergers, was directed only to the fairness, from a financial point of view, of the exchange ratio in the proposed mergers to the Parsley Class A stockholders and holders of Parsley LLC stapled units and did not address any other aspect of the proposed mergers. The opinion does not constitute a recommendation to any Parsley stockholder as to how such stockholder should vote with respect to the proposed mergers or any other matter.

For further information, please see “The Mergers—Opinions of Parsley’s Financial Advisors—Opinion of Wells Fargo Securities, LLC” beginning on page 122 and the full text of the written opinion of Wells Fargo Securities attached as Annex E of this joint proxy statement/prospectus.

Interests of Certain PersonsParsley Directors and Executive Officers in the MergerMergers (See page 129)

In considering the recommendationsrecommendation of the Pioneer Southwest Conflicts CommitteeParsley board that Parsley stockholders vote to approve the Parsley merger proposal and the Pioneer Southwest GP Board with respect to the merger, Pioneer Southwest unitholdersParsley compensation proposal, Parsley stockholders should be aware that, aside from their interests as stockholders of Parsley, Parsley’s directors and executive officers have interests in the mergers that may be different from, or in addition to, the interests of Parsley stockholders generally. These interests are described in more detail in the section titled “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers” beginning on page 129. The Parsley board was aware of and considered these potential interests, among other matters, in evaluating and negotiating the merger agreement and the transactions contemplated therein, in approving the mergers and in recommending the approval of the Parsley merger proposal and the Parsley compensation proposal. See “The Mergers—Background of the Mergers” and “The Mergers—Recommendation of the Parsley Board and Reasons for the Mergers.” Parsley stockholders should take these interests into account in deciding whether to vote “FOR” the Parsley merger proposal and the Parsley compensation proposal. These interests are described in more detail below, and certain of them are quantified in the narrative and the tables below.



Board of Directors and Management of Pioneer Following Completion of the Mergers (See page 144)

Upon completion of the mergers, the current directors and executive officers of Pioneer and Pioneer Southwest GP have interests in the transaction that differ from, or are in addition to, the interests of Pioneer Southwest unitholders generally, including:

All of the directors and officers of Pioneer Southwest GP have the right to indemnification under the organizational documents of Pioneer Southwest GP, the Pioneer Southwest partnership agreement and the merger agreement, and the four independent directors of Pioneer Southwest GP have the right to indemnification under indemnification agreements with Pioneer Southwest. In addition, all of the directors of Pioneer and all of the officers of Pioneer Southwest GP have the right to indemnification under the organizational documents of Pioneer or Pioneer USA and indemnification agreements with Pioneer or Pioneer USA.

Each of the officers that are officers of both Pioneer and Pioneer Southwest GP are expected to continue in their current positions, other than for changes previously announced by Pioneer or as may be publicly announced by Pioneer in the future in the normal course.

Additionally, pursuant to the merger agreement, Pioneer and Parsley have agreed that the Pioneer board will be expanded by two members as of the effective time and Matt Gallagher and A.R. Alameddine will be appointed as directors of the Pioneer board. If either Mr. Gallagher and/or Mr. Alameddine is unwilling or unable to serve as officersa member of the Pioneer board at the effective time, then another member or members of the Parsley board that is determined by the Pioneer board in good faith to be independent with respect to his or her service on the Pioneer board and is mutually agreed between Pioneer and Parsley will instead be appointed to fill such vacancy or vacancies on the Pioneer board in lieu of Mr. Gallagher and/or Mr. Alameddine, as applicable. Any remuneration to be paid to these directors will be consistent with Pioneer’s remuneration policy for its directors. Pioneer has also agreed to take all action necessary to nominate the Parsley director designees for election to the Pioneer board in the proxy statement relating to the first annual meeting of Pioneer stockholders following the merger.

Each outstanding phantom unitclosing of the mergers. In addition, the Pioneer board (or a committee thereof) will appoint each Parsley director designee to a committee of the Pioneer board within 90 days following the closing date, in a manner consistent with its ordinary policies and practices. For additional information, please see “The MergersBoard of Directors and Management of Pioneer SouthwestFollowing Completion of the Mergers.

Appraisal Rights or Dissenters’ Rights (See page 151)

Under Delaware law, no appraisal rights or dissenters’ rights will be available with respect to the stock issuance for Pioneer stockholders or with respect to the mergers for Parsley Class A stockholders. It is anticipated that Pioneer common stock will continue to be traded on the NYSE during the pendency of and following the effectiveness of the mergers, and Pioneer’s corporate status will not change because the mergers are being consummated between various subsidiaries of Pioneer, on the one hand, and Parsley or Parsley LLC, on the other hand.

However, Parsley Class B stockholders who do not vote in favor of the Parsley merger proposal will be entitled to exercise appraisal rights under Section 262, solely with respect to their shares of Parsley Class B common stock (and not, for the avoidance of doubt, with respect to any shares of Parsley Class A common stock or Parsley LLC units held by officersthem), in connection with the mergers if they take certain actions and meet certain conditions set forth in Section 262. Failure to comply with Section 262 may result in a Parsley Class B stockholder waiving, or being unable to exercise, appraisal rights.

For more information regarding appraisal rights, please see “The Mergers—Appraisal Rights or Dissenters’ Rights” beginning on page 151 of this joint proxy statement/prospectus and the full text of Section 262, attached as Annex F to this joint proxy statement/prospectus.

Material U.S. Federal Income Tax Consequences (See page 144)

Assuming that the integrated mergers are completed as currently contemplated, Pioneer Southwest GPand Parsley intend for the integrated mergers, taken together, to qualify as a “reorganization” within the meaning of Section 368(a) of the Code. It is a condition to Parsley’s obligation to complete the mergers that it receive an opinion from Vinson & Elkins, counsel to Parsley, or another nationally recognized law firm reasonably satisfactory to Parsley, dated as of the closing date, to the effect that the integrated mergers, taken together, will be convertedqualify as a “reorganization” within the meaning of Section 368(a) of the Code. Provided that the integrated mergers, taken together, qualify as a “reorganization” within the meaning of Section 368(a) of the Code, a U.S. holder (as



defined in The Mergers—Material U.S. Federal Income Tax Consequences”) of Parsley Class A common stock generally will not recognize any gain or loss for U.S. federal income tax purposes upon the merger into an equivalent restrictedexchange of Parsley Class A common stock unitfor shares of Pioneer common stock pursuant to the integrated mergers, except with adjustmentsrespect to any cash received in lieu of fractional shares of Pioneer common stock.

The exchange of Parsley LLC units for shares of Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any) in the Opco merger is intended to be a taxable event for U.S. holders (as defined in the section titled “The Mergers—Material U.S. Federal Income Tax Consequences”) of Parsley LLC units for U.S. federal income tax purposes, even though Parsley LLC unitholders will receive no cash consideration (other than cash received in lieu of fractional shares of Pioneer common stock) in the Opco merger. A U.S. holder of Parsley LLC units generally will recognize gain or loss in an amount equal to the difference between (i) the sum of (A) the fair market value of the Pioneer common stock received, (B) any cash received (including any cash in lieu of fractional shares of Pioneer common stock and any portion of the TRA termination payments that the parties to the TRA amendment have agreed to treat as additional consideration payable to such holder for the Parsley LLC units exchanged in the Opco merger) and (C) such U.S. holder’s share of Parsley LLC’s nonrecourse liabilities immediately prior to the Opco merger and (ii) such U.S. holder’s adjusted tax basis in the Parsley LLC units exchanged therefor (which will include such U.S. holder’s share of Parsley LLC’s nonrecourse liabilities immediately prior to the Opco merger). Such gain or loss generally will be capital gain or loss. However, a portion of such gain or loss, which portion could be substantial, will be separately computed and taxed as ordinary income or loss to the extent attributable to assets giving rise to depreciation recapture or other “unrealized receivables” or to “inventory items” owned by Parsley LLC and its subsidiaries. For U.S. holders subject to the passive loss rules, passive losses that were not deductible by a U.S. holder of Parsley LLC units in prior taxable periods may become available to offset a portion of any gain recognized by such holder in connection with the Opco merger.

Please see “The Mergers—Material U.S. Federal Income Tax Consequences” for a more detailed discussion of the U.S. federal income tax consequences of the integrated mergers to U.S. holders of Parsley Class A common stock and the U.S. federal income tax consequences of the Opco merger to U.S. holders of Parsley LLC units. Each Parsley Class A stockholder and Parsley LLC unitholder is strongly urged to consult with a tax advisor to determine the particular U.S. federal, state or local or non-U.S. income or other tax consequences of the mergers to it.

Accounting Treatment of the Mergers (See page 149)

Pioneer prepares its financial statements in accordance with GAAP. The mergers will be accounted for as a business combination, using the acquisition method of accounting with Pioneer being considered the acquirer of Parsley for accounting purposes. This means that Pioneer will record all assets acquired and liabilities assumed from Parsley at their acquisition date fair values at the closing date of the mergers.

Regulatory Approvals (See page 149)

Antitrust Clearance

The completion of the mergers is subject to antitrust review in the United States. Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”), and the rules promulgated thereunder, the mergers cannot be completed until the parties to the merger agreement have given notification and furnished information to the Federal Trade Commission (the “FTC”) and the United States Department of Justice (the “DOJ”), and until the applicable waiting period has expired or has been terminated.

On November 12, 2020, Pioneer and Parsley received notice of early termination of the applicable waiting period under the HSR Act.



At any time before or after consummation of the mergers, notwithstanding the early termination of the applicable waiting period under the HSR Act, the FTC, the DOJ or any state could take such action under antitrust laws as it deems necessary or desirable in the public interest, including seeking to enjoin the completion of the mergers or seeking the divestiture of substantial assets of Pioneer or Parsley or their respective subsidiaries. Private parties may also seek to take legal action under antitrust laws under certain circumstances.

Securities and Exchange Commission

In connection with the Pioneer stock issuance proposal, Pioneer has filed a registration statement on Form S-4 with the SEC under the Securities Act, of which this joint proxy statement/prospectus forms a part, that must be declared effective by the SEC and pursuant to which the issuance of shares of Pioneer common stock issuable upon the effective time will be registered with the SEC.

New York Stock Exchange

In addition, the completion of the mergers is subject to approval for listing of the shares of Pioneer common stock to be issued in the mergers and reserved for issuance in connection with the mergers on the NYSE, subject to official notice of issuance.

Treatment of Parsley Equity-Based Awards (See page 157)

The merger agreement provides for the treatment set forth below with respect to the awards held by Parsley’s non-employee directors, executive officers and other employees at the effective time:

Parsley Time-Based Restricted Stock Unit Awards: Each vested Parsley time-based restricted stock unit award (including any Parsley time-based restricted stock unit award that vests by its terms as a result of the consummation of the mergers) that is issued and outstanding as of immediately prior to the effective time will, at the effective time, be cancelled and converted into the right to receive a number of shares of Pioneer common stock (to be issued within 30 days following the closing date in accordance with the terms of the applicable restricted stock unit award agreement), rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to reflectsuch award as of immediately prior to the effective time and (b) the exchange ratio, but otherwiseratio. Any Parsley time-based restricted stock unit award held by a non-employee member of the Parsley board will become fully vested as a result of the consummation of the mergers and will be treated as a vested Parsley time-based restricted stock unit award entitled to the foregoing treatment. Each unvested Parsley time-based restricted stock unit award (excluding any Parsley time-based restricted stock unit award that vests by its terms as a result of the consummation of the mergers) that is issued and outstanding as of immediately prior to the effective time will, at the effective time, be converted, on the same terms and conditions (including time-based vesting conditions) as were applicable to such award as of immediately prior to the merger.

Threeeffective time, into the right to receive a time-based award covering a number of the seven directors of Pioneer Southwest GP are executive officers of both Pioneer and Pioneer Southwest GP, and one of these three directors, Scott D. Sheffield, is also the Chairman of the Board of Pioneer. All three of these directors own shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and Pioneer Southwest common units(b) the exchange ratio.

Parsley Time-Based Restricted Stock Awards: Each unvested Parsley time-based restricted stock award (excluding any Parsley time-based restricted stock award that vests by its terms as wella result of the consummation of the mergers) that is issued and outstanding as phantom unitsof immediately prior to the effective time, at the effective time, will be converted, on the same terms and conditions (including time-based vesting conditions) as were applicable to such time-based restricted stock award as of immediately prior to the effective time, into the right to receive a time-based restricted stock award of Pioneer Southwest.

Certain other Pioneer officers and Pioneer Southwest GP officers owncovering a number of shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and Pioneer Southwest common units,(b) the exchange ratio.



Parsley Performance-Based Restricted Stock Unit Awards and Performance-Based Restricted Stock Awards: Each Parsley performance-based restricted stock unit award and Parsley performance-based restricted stock award that is issued and outstanding as wellof immediately prior to the effective time will be deemed to have become vested pursuant to the terms of the merger agreement based on deemed achievement of the maximum level of performance applicable to such award as equity-based benefit plan awards relatedof the date immediately prior to the effective time. At the effective time, any such vested performance-based restricted stock unit award will automatically be cancelled and converted into the right to receive a number of shares of Pioneer common stock (to be issued within 30 days following the closing date in accordance with the terms of the applicable award agreement), rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio. At the effective time, any such vested performance-based restricted stock award will automatically be converted into the right to receive a number of shares of Pioneer Southwest common units.

stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio.

For additional information regarding the treatment of Parsley equity awards, please see “The Merger Agreement—Treatment of Parsley Equity-Based Awards.”

Listing of Pioneer Common Stock; Delisting and Deregistration of Parsley Class A Common Stock (See page 151)

It is a condition to the consummation of the mergers that the shares of Pioneer common stock issuable to Parsley Class A stockholders and Parsley LLC unitholders in connection with the mergers be approved for listing on the NYSE, subject to official notice of issuance.

Shares of Parsley Class A common stock currently trade on the NYSE under the stock symbol “PE”. When the mergers are completed, Parsley will cease to exist and the Parsley Class A common stock will cease to be traded on the NYSE and will be deregistered under the Exchange Act.

No Solicitation; Recommendations (See page 166)

Subject to certain exceptions, the merger agreement limits Pioneer’s and Parsley’s ability to solicit, knowingly encourage or facilitate or discuss or negotiate with any person, or furnish any nonpublic information or data to any person, with respect to an acquisition proposal (as defined herein). For a more detailed discussion on Pioneer and Parsley and the ability of their boards of directors to consider other proposals, please see “The Merger Agreement—No Solicitation; Recommendations.”

Conditions Precedent to the Mergers (See page 173)

The obligations of the parties to consummate the mergers are subject to the satisfaction at or prior to the effective time of the following mutual conditions:

approval of the Pioneer stock issuance proposal by the Pioneer stockholders and approval of the Parsley merger proposal by the Parsley stockholders shall have been obtained;

any waiting period (and any extension thereof) under the HSR Act relating to the mergers shall have expired or been terminated;

no temporary restraining order, preliminary or permanent injunction or other judgment, order or decree or other legal restraint or prohibition issued by any governmental entity having jurisdiction over any party shall be in effect, and no law shall have been enacted, entered, promulgated, enforced or deemed applicable by any governmental entity that prohibits or makes illegal consummation of the mergers;



the shares of Pioneer common stock to be issued in the mergers, and shares of Pioneer common stock to be reserved for issuance in connection with the mergers, shall have been approved for listing on the NYSE, subject to official notice of issuance; and

the registration statement on Form S-4, of which this joint proxy statement/prospectus forms a part, shall have been declared effective by the SEC under the Securities Act and no stop order suspending the effectiveness of the Form S-4 shall have been issued and no proceedings for that purpose shall have been initiated.

The obligations of Pioneer, Merger Sub Inc., Merger Sub LLC and Opco Merger Sub to effect the mergers are also subject to the satisfaction, or waiver by Pioneer, at or prior to the effective time of the following additional conditions:

the accuracy of the representations and warranties of Parsley and Parsley LLC set forth in the merger agreement, subject to the materiality standards set forth in the merger agreement, as of the date of the merger agreement and as of the closing date (except to the extent such representations and warranties speak as of a specified date, in which case such representations and warranties will be true and correct as of such date), and Pioneer’s receipt of an officer’s certificate from Parsley to that effect; and

performance of, or compliance with, in all material respects, all covenants and obligations required to be performed or complied with pursuant to the merger agreement by Parsley and Parsley LLC at or prior to the effective time, and Pioneer’s receipt of an officer’s certificate from Parsley to that effect.

The obligations of Parsley and Parsley LLC to effect the mergers are also subject to the satisfaction, or waiver by Parsley, at or prior to the effective time of the following additional conditions:

the accuracy of the representations and warranties of Pioneer, Merger Sub Inc., Merger Sub LLC and Opco Merger Sub set forth in the merger agreement, subject to the materiality standards set forth in the merger agreement, as of the date of the merger agreement and as of the closing date (except to the extent such representations and warranties speak as of a specified date, in which case such representations and warranties will be true and correct as of such date), and Parsley’s receipt of an officer’s certificate from Pioneer to that effect;

performance of, or compliance with, in all material respects, all covenants and obligations required to be performed or complied with pursuant to the merger agreement by Pioneer, Merger Sub Inc., Merger Sub LLC and Opco Merger Sub at or prior to the effective time, and Parsley’s receipt of an officer’s certificate from Pioneer to that effect; and

receipt of an opinion from Vinson & Elkins, counsel to Parsley, or another nationally recognized law firm reasonably satisfactory to Parsley, dated as of the closing date, to the effect that the integrated mergers, taken together, will qualify as a “reorganization” within the meaning of Section 368(a) of the Code.

As further discussed under the section titled “Risk Factors,” neither Pioneer nor Parsley can be certain when, or if, the conditions to the mergers will be satisfied or waived, or that the mergers will be completed.

Termination of the Merger Agreement (See page 174)

Pioneer and Parsley may mutually agree in writing to terminate the merger agreement before consummating the mergers, even after approval of the Pioneer stock issuance proposal by the Pioneer stockholders and the Parsley merger proposal by the Parsley stockholders have been obtained.



In addition, either Pioneer or Parsley may terminate the merger agreement if:

the mergers have not been consummated on or before May 20, 2021 (the “outside date”); provided that the right to terminate the merger agreement as described in this bullet shall not be available to any party whose failure to fulfill in any material respect any of its obligations under the merger agreement has been the proximate cause of, or proximately resulted in, the failure of the mergers to be consummated by the outside date;

any court of competent jurisdiction or other governmental entity shall have issued any judgment, order, injunction, rule or decree, or taken any other action restraining, enjoining or otherwise prohibiting any of the transactions contemplated by the merger agreement, and such judgment, order, injunction, rule, decree or other action shall have become final and nonappealable; provided, that the party seeking to terminate the merger agreement as described in this bullet shall have used its reasonable best efforts to contest, appeal and remove such judgment, order, injunction, rule, decree, ruling or other action in accordance with the terms of the merger agreement;

the approval of the Parsley merger proposal by the Parsley stockholders shall not have been obtained at the Parsley special meeting duly convened for such purpose or at any adjournment or postponement thereof at which a vote on the Parsley merger proposal was taken;

the approval of the Pioneer stock issuance proposal by the Pioneer stockholders shall not have been obtained at the Pioneer special meeting duly convened for such purpose, or at any adjournment or postponement thereof at which a vote on the Pioneer stock issuance proposal was taken; or

the other party has breached or failed to perform any representation, warranty, covenant or other agreement contained in the merger agreement (other than the “no solicitation” and stockholder meeting covenants), or any representation or warranty of the other party shall have become untrue, which breach or failure to perform or to be true, either individually or in the aggregate, if occurring or continuing at the effective time, would result in the failure of any condition to the mergers and such breach cannot be or has not been cured by the earlier of the outside date and 30 days after the giving of written notice to the breaching party of such breach or failure (a “terminable breach”); provided, that the terminating party is not then in terminable breach of any covenant or agreement contained in the merger agreement.

In addition, the merger agreement may be terminated under the following circumstances:

by Pioneer, prior to, but not after, the time the Parsley stockholders approve the Parsley merger proposal, if (i) the Parsley board has effected a Parsley adverse recommendation change, (ii) in the case of a Parsley acquisition proposal structured as a tender offer or exchange offer, Parsley has, within 10 business days of the tender or exchange offer having been commenced, failed to publicly recommend against such tender or exchange offer, (iii) upon a request to do so by Pioneer, Parsley has failed to publicly reaffirm its recommendation of the mergers within 10 business days after the date any Parsley acquisition proposal is first publicly announced, distributed or disseminated to Parsley stockholders or (iv) the Parsley board or a director or executive officer of Parsley has, or has caused Parsley to have, breached or failed to perform any obligation set forth in the “no solicitation” or stockholder meeting covenants of the merger agreement in any material respect;

by Parsley, prior to, but not after, the time the Pioneer stockholders approve the Pioneer stock issuance proposal, if (i) the Pioneer board has effected a Pioneer adverse recommendation change, (ii) in the case of a Pioneer acquisition proposal structured as a tender offer or exchange offer, Pioneer has, within 10 business days of the tender or exchange offer having been commenced, failed to publicly recommend against such tender or exchange offer, (iii) upon a request to do so by Parsley, Pioneer has failed to publicly reaffirm its recommendation of the stock issuance within 10 business days after the



date any Pioneer acquisition proposal is first publicly announced, distributed or disseminated to Pioneer stockholders or (iv) the Pioneer board or a director or executive officer of Pioneer has, or has caused Pioneer to have, breached or failed to perform any obligation set forth in the “no solicitation” or stockholder meeting covenants of the merger agreement in any material respect; or

by Parsley, prior to, but not after, the time the Parsley stockholders approve the Parsley merger proposal, in order to enter into a definitive agreement with respect to a superior proposal (as defined below in the section titled “The Merger Agreement—No Solicitation; Recommendation”); provided that Parsley shall have contemporaneously with such termination tendered payment to Pioneer of the Parsley termination fee as defined herein and described below in the section titled “The Merger Agreement—Termination Fees and Expense Reimbursement—Termination Fees Payable by Parsley”.

Termination Fees and Expense Reimbursement (See page 175)

Termination Fees Payable by Pioneer

The merger agreement requires Pioneer to pay Parsley a termination fee of $270,000,000 (less the amount of any expense reimbursement fee previously paid to Parsley as described below under “—Expenses”) if:

(i) (A) either party terminates the merger agreement because the Pioneer stockholder approval is attachednot obtained and on or before the date of any such termination a Pioneer acquisition proposal is made directly to Pioneer stockholders or is otherwise publicly disclosed and not withdrawn at least seven business days prior to the Pioneer special meeting, or (B) either party terminates the merger agreement following the outside date or Parsley terminates the merger agreement due to a terminable breach by Pioneer and, in either case, on or before the date of any such termination a Pioneer acquisition proposal is made directly to Pioneer stockholders or is otherwise publicly disclosed and not withdrawn at least seven business days prior to the Pioneer special meeting or is otherwise communicated to Pioneer senior management or the Pioneer board, and (ii) within 12 months after the date of such termination, Pioneer enters into an agreement with respect to a Pioneer acquisition proposal (or recommends or submits a Pioneer acquisition proposal to the Pioneer stockholders for adoption) or consummates a transaction in respect to any Pioneer acquisition proposal (although for purposes of this clause (ii), each reference to “20% or more” in the definition of “acquisition proposal” shall be deemed to be a reference to “50% or more”); or

Parsley terminates the merger agreement following a Pioneer adverse recommendation change or related events or a breach by Pioneer of the “no solicitation” or stockholder meeting covenants in any material respect, as described above in the section titled “Termination of the Merger Agreement.”

In no event shall Pioneer be required to pay the termination fee on more than one occasion.

Termination Fees Payable by Parsley

The merger agreement requires Parsley to pay Pioneer a termination fee of $135,000,000 (less the amount of any expense reimbursement fee previously paid to Pioneer as described below under “—Expenses”) if:

(i) (A) either party terminates the merger agreement because the Parsley stockholder approval is not obtained and on or before the date of any such termination a Parsley acquisition proposal is made directly to Parsley stockholders or is otherwise publicly disclosed and not withdrawn at least seven business days prior to the Parsley special meeting, or (B) either party terminates the merger agreement following the outside date or Pioneer terminates the merger agreement due to a terminable breach by Parsley and, in either case, on or before the date of any such termination a Parsley acquisition proposal is made directly to Parsley stockholders or is otherwise publicly disclosed and not withdrawn at least



seven business days prior to the Pioneer special meeting or is otherwise communicated to Parsley senior management or the Parsley board and (ii) within 12 months after the date of such termination, Parsley enters into an agreement with respect to a Parsley acquisition proposal (or recommends or submits a Parsley acquisition proposal to the Parsley stockholders for adoption) or consummates a transaction in respect to any Parsley acquisition proposal (although for purposes of this clause (ii), each reference to “20% or more” in the definition of “acquisition proposal” shall be deemed to be a reference to “50% or more”);

Pioneer terminates the merger agreement following a Parsley adverse recommendation change or related events or a breach by Parsley of the “no solicitation” or stockholder meeting covenants in any material respect, as described above in the section titled “Termination of the Merger Agreement”; or

Parsley terminates the merger agreement, prior to, but notafter, the time the Parsley stockholders approve the Parsley merger proposal, in order to enter into a definitive agreement with respect to a superior proposal as described above in the section titled “Termination of the Merger Agreement”.

In no event shall Parsley be required to pay the termination fee on more than one occasion.

Expenses

In addition, unless the other party is otherwise entitled to a termination fee, (i) Pioneer may be obligated to pay Parsley $90,000,000 for costs and expenses incurred in connection with the authorization, preparation, investigation, negotiation, execution and performance of the merger agreement and the transactions contemplated thereby, including the mergers, following a termination by either party as a result of the failure to obtain the Pioneer stockholder approval and (ii) Parsley may be obligated to pay Pioneer $45,000,000 for costs and expenses incurred in connection with the authorization, preparation, investigation, negotiation, execution and performance of the merger agreement and the transactions contemplated thereby, including the mergers, following a termination by either party as a result of the failure to obtain the Parsley stockholder approval.

In no event will either party be required to pay an expense reimbursement fee on more than one occasion. If either party pays a termination fee, then such party will not be required to also pay an expense reimbursement fee.

Specific Performance (See page 177)

In addition to any other remedy that may be available to each party prior to the termination of the merger agreement, each of the parties will be entitled to an injunction, specific performance and other equitable relief to prevent breaches of the merger agreement and to enforce specifically the terms and provisions of the merger agreement.

Closing and Effective Time of the Mergers (See page 157)

Unless the parties agree otherwise, the closing of the mergers will take place on a date that is two business days following the satisfaction or, to the extent permitted by applicable law, waiver of the conditions to closing (other than any such conditions that by their terms are to be satisfied at the closing, but subject to the satisfaction or, to the extent permitted by applicable law, waiver of such conditions).

As soon as practicable on the closing date, a certificate of merger with respect to the first merger will be filed with the Secretary of State of the State of Delaware and, concurrently therewith, a certificate of merger with respect to the Opco merger will be filed with the Secretary of State of the State of Delaware. The first merger and the Opco merger will each become effective at the same time on the closing date as the parties agree in writing



and specify in the applicable certificate of merger. In addition, as soon as practicable on the closing date, a certificate of merger with respect to the subsequent merger will be filed with the Secretary of State of the State of Delaware and the subsequent merger will become effective one minute after the effective time, as will be specified in the certificate of merger.

Pioneer and Parsley have targeted to complete the mergers in the first quarter of 2021, subject to receipt of the required Pioneer stockholder approval and Parsley stockholder approval, regulatory approvals and the satisfaction or waiver of the other conditions to the mergers (Please see “The Merger Agreement—Conditions Precedent to the Mergers”).

Comparison of Equityholder Rights (See page 195)

Parsley Class A stockholders and Parsley LLC unitholders receiving Pioneer common stock in connection with the mergers will have different rights once they become stockholders of Pioneer due to differences between the governing documents of Pioneer and Parsley. These differences are described in more detail in “Comparison of Equityholder Rights.”

Risk Factors (See page 26)

Before voting at the Pioneer special meeting or the Parsley special meeting, you should carefully consider all of the information contained in or incorporated by reference into this joint proxy statement/prospectus, including the specific risk factors in the section titled “Risk Factors.”



SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF PIONEER

The following table sets forth selected historical consolidated financial data that has been derived from Pioneer’s audited consolidated financial statements as Annex Aof and for each of the five years in the period ended December 31, 2019, as well as from Pioneer’s unaudited consolidated financial statements as of and for the nine months ended September 30, 2020 and 2019, and the related notes thereto. This disclosure does not include the effects of the mergers. The information set forth below is only a summary and is not necessarily indicative of the results of future operations of Pioneer or the combined company, and the following information should be read in conjunction with, and is qualified in its entirety by, Pioneer’s consolidated financial statements, the related notes thereto and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2019 and Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2020, each of which is incorporated by reference into this joint proxy statement/prospectus. The selected statement of operations data for the years ended December 31, 2016 and 2015 and selected balance sheet data as of December 31, 2017, 2016 and 2015 have been derived from Pioneer’s audited consolidated financial statements for such years, which have not been included or incorporated by reference into this joint proxy statement/prospectus. For more information, please see “Where You Can Find More Information.”

   Nine Months Ended
September 30,
  Year Ended December 31, 
   2020  2019  2019  2018  2017  2016  2015 
   (unaudited)  (audited) 
   (in millions, except per share data) 

CONSOLIDATED STATEMENT OF OPERATIONS DATA:

        

Total revenues and other income

  $4,930 $6,661 $9,304 $9,415 $5,455 $3,382 $4,561

Total costs and expenses

   5,118  6,122  8,317  8,164  5,146  4,341  4,982
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Income (loss) before income taxes

   (188  539  987  1,251  309  (959  (421
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income (loss) attributable to common stockholders

  $(170 $412 $756 $978  $833 $(556 $(273
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

PER SHARE DATA:

        

Net income (loss) attributable to common stockholders:

        

Basic

  $(1.03 $2.44 $4.50 $5.71 $4.86 $(3.34 $(1.83

Diluted

  $(1.03 $2.44 $4.50 $5.70 $4.85 $(3.34 $(1.83

Dividends declared

  $1.65 $0.76 $1.20 $0.32 $0.08 $0.08 $0.08

Weighted average shares outstanding:

        

Basic and diluted

   165  168  167  171  170  166  149

CONSOLIDATED STATEMENT OF CASH FLOWS DATA:

        

Net cash provided by (used in):

        

Operating activities

  $1,546 $2,287 $3,115 $3,242 $2,099 $1,499 $1,255

Investing activities

  $(1,342 $(1,914 $(2,447 $(2,610 $(1,792 $(3,820 $(1,840

Financing activities

  $482 $(685 $(788 $(703 $(529 $2,048 $951

CONSOLIDATED BALANCE SHEET DATA:

        

Cash and cash equivalents

  $1,325 $437 $631 $825 $896 $1,118 $1,391

Total assets

  $18,977 $18,078 $19,067 $17,903 $17,003 $16,459 $15,154

Long-term obligations

  $5,625  $3,762 $4,452 $3,974 $3,596 $4,482 $5,317

Total equity

  $11,654 $11,856 $12,119 $12,111 $11,279 $10,411 $8,375


SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA OF PARSLEY

The following table sets forth selected historical consolidated financial data that has been derived from Parsley’s audited consolidated financial statements as of and for each of the five years in the period ended December 31, 2019, as well as from Parsley’s unaudited consolidated financial statements as of and for the nine months ended September 30, 2020 and 2019, and the related notes thereto. This disclosure does not include the effects of the mergers. The information set forth below is only a summary and is not necessarily indicative of the results of future operations of Parsley or the combined company, and the following information should be read in conjunction with, and is qualified in its entirety by, Parsley’s consolidated financial statements, the related notes thereto and “Managements Discussion and Analysis of Financial Condition and Results of Operations” contained in Parsley’s Annual Report on Form 10-K for the year ended December 31, 2019 and Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2020, each of which is incorporated by reference into this joint proxy statement/prospectus. The selected statement of operations data for the years ended December 31, 2016 and 2015 and selected balance sheet data as of December 31, 2017, 2016 and 2015 have been derived from Parsley’s audited consolidated financial statements for such years, which have not been included or incorporated by reference into this joint proxy statement/prospectus. For more information, please see “Where You Can Find More Information.”

   Nine Months Ended
September 30,
  Year Ended December 31, 
   2020  2019  2019  2018  2017  2016  2015 
   (unaudited)  (audited) 
   (in millions, except per share data) 

CONSOLIDATED STATEMENT OF OPERATIONS DATA:

        

Total revenues

  $1,232 $1,436 $1,959 $1,826 $967 $458 $267

Total operating expenses

   6,008  986  1,422  1,198  715  427  375
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Operating income (loss)

   (4,776  450  537  628  252  31  (108
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Income (loss) before income taxes

   (4,675  306  272  551  130  (106  (97
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income (loss)

  $(4,101 $247 $210 $446 $124 $(89 $(73
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

PER SHARE DATA:

        

Net income (loss) per common share:

        

Basic

  $(9.91 $0.76 $0.63 $1.36 $0.44 $(0.46 $(0.45

Diluted

  $(9.91 $0.76 $0.63 $1.35 $0.42 $(0.46 $(0.45

Dividends declared

  $0.15 $0.03 $0.06 $—   $—   $—   $—  

Weighted average common shares outstanding:

        

Basic

   374  279  280  272  241  162  111

Diluted

   374  280  280  273  297  162  111

CONSOLIDATED STATEMENT OF CASH FLOWS DATA:

        

Net cash provided by (used in):

        

Operating activities

  $761 $941 $1,286 $1,219 $691 $230 $173

Investing activities

  $(604 $(1,097 $(1,401 $(1,594 $(3,457 $(1,885 $(427

Financing activities

  $(173 $(3 $(28 $(16 $3,184 $1,447 $547

CONSOLIDATED BALANCE SHEET DATA:

        

Cash and cash equivalents

  $5 $5 $21 $163 $554 $133 $343

Total assets

  $7,845 $9,996 $9,856 $9,391 $8,793 $3,939 $2,505

Long-term obligations

  $3,110 $2,623 $2,538 $2,423 $2,300 $1,164 $690

Noncontrolling interests

  $311 $766 $765 $752 $1,168 $341 $322

Total equity

  $4,127 $6,563 $6,523 $6,320 $5,881 $2,430 $1,587


SUMMARY UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL DATA

The following summary unaudited pro forma condensed combined statements of operations data for the nine months ended September 30, 2020 and year ended December 31, 2019 have been prepared to give effect to the mergers as if the mergers had been completed on January 1, 2019. The unaudited pro forma condensed combined balance sheet data at September 30, 2020 has been prepared to give effect to the mergers as if the mergers were completed on September 30, 2020. The following summary unaudited pro forma condensed combined consolidated financial data should be read in conjunction with “Unaudited Pro Forma Condensed Combined Financial Statements” and related notes included in this joint proxy statement/prospectus.

The unaudited pro forma condensed combined financial statements (the “pro forma financial statements”) have been prepared using the acquisition method of accounting for business combinations, with Pioneer treated as the acquirer. Under the acquisition method of accounting, Pioneer will record all assets acquired and liabilities assumed from Parsley at their respective fair values as of the closing date. The acquisition method of accounting is dependent upon certain valuations and other studies that have yet to commence or progress to a stage where there is sufficient information for a definitive fair value measure. The sources and amounts of transaction expenses may also differ from those assumed in the following pro forma adjustments. Accordingly, the pro forma adjustments are preliminary, have been made solely for the purpose of providing the pro forma financial statements, and are subject to revision based on a final determination of fair values as of the closing date. Differences between these preliminary estimates and the final acquisition accounting may have a material impact on the accompanying pro forma financial statements and the combined company’s future results of operations and financial position.

The unaudited pro forma condensed combined financial data are provided for illustrative purposes only and are not intended to represent or be indicative of the results of operations or the financial position of the combined company that would have been recorded had the mergers been completed as of the dates presented and should not be taken as representative of future results of operations or the financial position of the combined company. The unaudited pro forma condensed combined financial data does not reflect the impacts of any potential operational efficiencies, asset dispositions, cost savings or economies of scale that the combined company may achieve with respect to the combined operations.

   Nine Months
Ended
September 30,
2020
  Year Ended
December 31,
2019
 
   (unaudited) 
   (in millions, except per share data) 

Pro Forma Condensed Combined Statement of Operations Data:

   

Revenue

  $6,401 $11,580

Net income (loss) attributable to common stockholders

  $(4,175 $1,191

Basic and diluted net income (loss) per share attributable to common stockholders

  $(19.24 $5.44

   As of
September 30,
2020
    
   (unaudited) 
   (in millions) 

Pro Forma Condensed Combined Balance Sheet Data:

  

Total assets

  $27,146

Total liabilities

  $10,867

Total equity

  $16,279


SUMMARY PRO FORMA COMBINED OIL, NGL AND GAS RESERVE AND PRODUCTION DATA

The following tables present the estimated summary pro forma combined net proved developed and undeveloped oil, NGL and gas reserves as of December 31, 2019 and summary pro forma production data for the nine months ended September 30, 2020 and the year ended December 31, 2019. The pro forma reserve and production information set forth below gives effect to the mergers and, in the case of the pro forma reserve information and the pro forma production information for the year ended December 31, 2019, Parsley’s acquisition of Jagged Peak, as if each such transaction had been completed on January 1, 2019. The following summary pro forma reserve and production information has been prepared for illustrative purposes only and is not intended to be a projection of future results of the combined company. Future results may vary significantly from the results reflected because of various factors, including those discussed in “Risk Factors.” The summary pro forma reserve and production information should be read in conjunction with “Unaudited Pro Forma Condensed Combined Financial Statements” and the related notes thereto in this joint proxy statement/prospectus. The Parsley pro forma information gives effect to Parsley’s acquisition of Jagged Peak, as disclosed in Parsley’s Current Report on Form 8-K filed with the SEC on April 10, 2020, which is incorporated by reference into this joint proxy statement/prospectus.

   As of December 31, 2019 
   Pioneer
Historical
   Parsley
Pro Forma
   Pro Forma
Combined
 

Proved developed reserves:

      

Oil (MBbls)

   571,293   270,150   841,443

NGL (MBbls)

   268,468   108,132   376,600

Gas (MMcf)

   1,429,417   530,657   1,960,074

Total (MBOE)

   1,077,997   466,725   1,544,722

Proved undeveloped reserves:

      

Oil (MBbls)

   32,457   158,982   191,439

NGL (MBbls)

   13,515   58,762   72,277

Gas (MMcf)

   70,096   272,793   342,889

Total (MBOE)

   57,655   263,209   320,864
   Nine Months Ended September 30, 2020 
   Pioneer
Historical
   Parsley
Historical
   Pro Forma
Combined
 

Average daily sales volumes:

      

Oil (Bbls)

   212,718   116,708   329,426

NGL (Bbls)

   85,707   39,442   125,149

Gas (Mcf)

   418,547   189,734   608,281

Total (BOE)

   368,183   187,774   555,957
   Year Ended December 31, 2019 
   Pioneer
Historical
   Parsley
Pro Forma
   Pro Forma
Combined
 

Average daily sales volumes:

      

Oil (Bbls)

   212,353   116,745   329,098

NGL (Bbls)

   72,323   35,422   107,745

Gas (Mcf)

   365,055   168,718   533,773

Total (BOE)

   345,518   180,288   525,806


UNAUDITED COMPARATIVE PER SHARE DATA

The following tables present Pioneer’s and Parsley’s historical and pro forma per share data as of and for the nine months ended September 30, 2020 and as of and for the year ended December 31, 2019. The pro forma statement of operations information is provided as if the mergers had been completed on January 1, 2019. The pro forma balance sheet information is provided as if the mergers had been completed on September 30, 2020.

The unaudited pro forma comparative per share data is based on the following information, which has been incorporated by reference into this joint proxy statement/prospectus: (i) Pioneer’s and Parsley’s audited consolidated financial statements as of and for the year ended December 31, 2019, (ii) Pioneer’s and Parsley’s unaudited consolidated financial statements as of and for the nine months ended September 30, 2020 and (iii) Parsley’s pro forma financial information as of and for the year ended December 31, 2019, giving effect to Parsley’s acquisition of Jagged Peak, as disclosed in Parsley’s Current Report on Form 8-K filed with the SEC on April 10, 2020. Please see “Where You Can Find More Information.”

Unaudited pro forma combined per share data as of and for the nine months ended September 30, 2020 and as of and for the year ended December 31, 2019 were derived and should be read in conjunction with the unaudited pro forma condensed combined financial data included in “Unaudited Pro Forma Condensed Combined Financial Statements” and the related notes thereto in this joint proxy statement/prospectus. The pro forma information is presented for illustrative purposes only and is not necessarily indicative of the operating results that would have occurred if the mergers had been completed as of the beginning of the period or the combined financial position of the companies as of September 30, 2020.

   Nine Months Ended September 30, 2020 
   Pioneer
Historical
  Parsley
Historical
  Pro Forma
Combined
Pioneer
  Pro Forma
Combined

Parsley
Equivalent (a)
 

Net income (loss) per share attributable to common stockholders:

     

Basic and diluted

  $(1.03 $(9.91 $(19.24 $(2.41

Book value per share

  $66.42 $10.06 $75.02  $9.39

Cash dividends per share

  $1.65 $0.15 $—    $—   
   Year Ended December 31, 2019 
   Pioneer
Historical
  Parsley
Pro Forma
  Pro Forma
Combined
Pioneer
  Pro Forma
Combined

Parsley
Equivalent (a)
 

Net income (loss) per share attributable to common stockholders:

     

Basic and diluted

  $4.50 $0.56 $5.44 $0.68

Book value per share

  $69.23 $19.86  NM   NM 

Cash dividends per share

  $1.20 $0.06 $—    $—   

(a)

Determined using the pro forma combined per share data multiplied by 0.1252 (the exchange ratio).



MARKET PRICE INFORMATION

Pioneer’s common stock is listed on the NYSE under the symbol “PXD”. Parsley Class A common stock is listed on the NYSE under the symbol “PE”.

The high and low trading prices for the Pioneer common stock as of October 20, 2020, the last trading day immediately before the public announcement of the mergers, were $84.82 and $81.39, respectively. The high and low trading prices for the Parsley Class A common stock as of October 20, 2020, the last trading day immediately before the public announcement of the mergers, were $10.77 and $9.88, respectively.

As of [                ], 2020, the last date before the date of this joint proxy statement/prospectus for which it was practicable to obtain this information, there were [                ] shares of Pioneer common stock issued and outstanding and [                ] shares of Parsley Class A common stock issued and outstanding.

Because the exchange ratio will not be adjusted for changes in the market price of either Pioneer common stock or Parsley Class A common stock, the market value of Pioneer common stock that Parsley Class A stockholders and Parsley LLC unitholders will have the right to receive on the date the mergers are completed may vary significantly from the market value of the Pioneer common stock that Parsley Class A stockholders and Parsley LLC unitholders would receive if the mergers were completed on the date of this joint proxy statement/prospectus. As a result, you should obtain recent market prices of Pioneer common stock and Parsley Class A common stock prior to voting your shares. Please see “Risk Factors—Risk Factors Relating to the Mergers.”

The following table sets forth the closing sale price per share of Parsley Class A common stock as reported on the NYSE and the closing sale price per share of Pioneer common stock as reported on the NYSE, in each case on October 20, 2020, the last trading day before the public announcement of the parties entering into the merger agreement, and on [                ], 2020, the last practicable trading day prior to the mailing of this joint proxy statement/prospectus. The table also shows the estimated implied value of the merger consideration proposed for each share of Parsley Class A common stock as of the same two dates. The implied value was calculated by multiplying the NYSE closing price of a share of Pioneer common stock on the relevant date by the exchange ratio of 0.1252 shares of Pioneer common stock for each share of Parsley Class A common stock.

   Pioneer
Common
Stock
Closing Price
   Parsley Class A
Common Stock
Closing Price
   Exchange
Ratio
   Implied Per Share
Value of Merger
Consideration
 

October 20, 2020

  $83.53   $10.62    0.1252   $10.46

                , 2020

  $                    $                     0.1252   $                  

Pioneer stockholders and Parsley stockholders are encouraged to read obtain current market quotations for Pioneer common stock and Parsley Class A common stock and to review carefully the other information contained in this joint proxy statement/prospectus or incorporated by reference herein. No assurance can be given concerning the market price of Pioneer common stock before or after the effective date of the mergers. Please see “Where You Can Find More Information” for the location of information incorporated by reference into this joint proxy statement/prospectus.



CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This joint proxy statement/prospectus, and the documents to which Pioneer and Parsley refer you within this joint proxy statement/prospectus, as well as oral statements made or to be made by Pioneer and Parsley, include “forward-looking statements” within the meaning of Section 27A of the Securities Act, Section 21E of the Exchange Act, and the United States Private Securities Litigation Reform Act of 1995, as amended. All statements, other than statements of historical fact, included in this joint proxy statement/prospectus, including those that address activities, events or developments that Pioneer or Parsley expects, believes or anticipates will or may occur in the future, are forward-looking statements. Forward-looking statements include, but are not limited to, statements regarding the mergers, the expected timetable for completing the mergers, the results, effects, benefits and synergies of the mergers, pro forma descriptions of the combined company and its operations, integration and transition plans, synergies, opportunities, and anticipated future performance and any other statements regarding Pioneer’s or Parsley’s future expectations, beliefs, plans, objectives, financial conditions, assumptions, or future events or performance that are not historical facts. Words such as “estimate,” “project,” “predict,” “believe,” “expect,” “anticipate,” “potential,” “create,” “intend,” “should,” “could,” “would,” “may,” “might,” “foresee,” “plan,” “will,” “guidance,” “outlook,” “future,” “assume,” “forecast,” “focus,” “target,” “continue,” or the negative of such terms or other variations thereof and words and terms of similar substance used in connection with any discussion of future plans, actions, or events identify forward-looking statements. However, the absence of these words does not mean that the statements are not forward-looking.

Pioneer and Parsley caution investors that any forward-looking statements are subject to known and unknown risks and uncertainties, many of which are outside Pioneer’s and Parsley’s control, and which may cause actual results and future trends to differ materially from those matters expressed in, or implied or projected by, such forward-looking statements, which speak only as of the date of this joint proxy statement/prospectus. Investors are cautioned not to place undue reliance on these forward-looking statements. Risks and uncertainties that could cause actual results to differ from those described in forward-looking statements include the following:

the merger agreement may be terminated in accordance with its entirety because it isterms and the legal document that governs the merger.mergers may not be completed;

 

What NeedsPioneer stockholders may not approve the Pioneer stock issuance proposal;

Parsley stockholders may not approve the Parsley merger proposal;

the parties may not be able to Be Donesatisfy the conditions to Complete the Mergercompletion of the mergers in a timely manner or at all;

the mergers may not be accretive, and may be dilutive, to Pioneer’s earnings per share, return on capital employed, cash flow and/or free cash flow, which may negatively affect the market price of Pioneer common stock;

Pioneer and Parsley may incur significant transaction and other costs in connection with the mergers in excess of those anticipated by Pioneer Southwest will completeor Parsley;

the combined company may fail to realize anticipated synergies or other benefits expected from the mergers in the timeframe expected or at all;

the ultimate timing, outcome and results of integrating the operations of Pioneer and Parsley and the risk that Pioneer’s and Parsley’s businesses may not be integrated successfully;

the effect of the mergers and their announcement and/or completion on Pioneer’s and Parsley’s business or employee relationships;

the risk related to disruption of management time from ongoing business operations due to the mergers;



the mergers may disrupt current plans and operations that may harm Pioneer’s and Parsley’s respective businesses;

the effects of the business combination on Pioneer and Parsley, including the combined company’s future financial condition, results of operations, strategy, credit ratings and plans;

changes in capital markets and the ability of the combined company to finance operations in the manner expected;

regulatory approval of the transaction;

any litigation relating to the mergers;

risks to Pioneer’s and Parsley’s operating results and businesses generally, including the volatility of oil and natural gas prices, the uncertainty of estimates of oil and natural gas reserves and the impact of a widespread outbreak of an illness, such as the COVID-19 pandemic, and the other risks, contingencies and uncertainties applicable to Pioneer and Parsley disclosed in Pioneer’s and Parsley’s other filings with the SEC incorporated herein by reference; and

the uncertainty of the value of the merger consideration due to the fixed exchange ratio and potential fluctuation in the market price of Pioneer common stock.

The foregoing list of factors is not exhaustive. For further discussion of these and other risks, contingencies, and uncertainties applicable to Pioneer and Parsley, please see “Risk Factors” in this joint proxy statement/prospectus as well as Pioneer’s and Parsley’s other filings with the SEC incorporated herein by reference. Please see “Where You Can Find More Information” for more information about the SEC filings incorporated by reference into this joint proxy statement/prospectus.

All subsequent written or oral forward-looking statements attributable to Pioneer, Parsley or any person acting on its or their behalf are expressly qualified in their entirety by the cautionary statements contained in this section. All forward-looking statements speak only ifas of the conditions set forthdate they are made and are based on information available at that time. Neither Pioneer nor Parsley assumes any obligation to update forward-looking statements to reflect circumstances or events that occur after the date the forward-looking statements were made or to reflect the occurrence of unanticipated events except as required by federal securities laws. As forward-looking statements involve significant risks and uncertainties, caution should be exercised against placing undue reliance on such statements.



RISK FACTORS

In addition to the other information included or incorporated by reference in this joint proxy statement/prospectus, including the matters addressed in “Cautionary Statement Regarding Forward-Looking Statements”, you should carefully consider the following risks before deciding how to vote. In addition, you should read and carefully consider the risks associated with each of Pioneer and Parsley and their respective businesses. These risks can be found in Pioneer’s and Parsley’s Annual Reports on Form 10-K for the year ended December 31, 2019 and subsequent Quarterly Reports on Form 10-Q, each of which is filed with the SEC and incorporated by reference into this joint proxy statement/prospectus. For further information regarding the documents incorporated into this joint proxy statement/prospectus by reference, please see the section titled “Where You Can Find More Information.” Realization of any of the risks described below, any of the events described under “Cautionary Statement Regarding Forward-Looking Statements” or any of the risks or events described in the documents incorporated by reference could have a material adverse effect on Pioneer’s, Parsley’s or the combined company’s businesses, financial condition, cash flows and results of operations.

Risks Relating to the Mergers

Because the market price of Pioneer common stock will fluctuate, Parsley Class A stockholders and Parsley LLC unitholders cannot be sure of the value of the shares of Pioneer common stock they will receive in connection with the mergers. In addition, because the exchange ratio is fixed, the number of shares of Pioneer common stock to be received by Parsley Class A stockholders and Parsley LLC unitholders in connection with the mergers will not change between now and the time the mergers are completed to reflect changes in the trading prices of Pioneer common stock or Parsley Class A common stock.

In connection with the mergers, each eligible share of Parsley Class A common stock and each eligible Parsley LLC unit will be converted automatically into the right to receive 0.1252 shares of Pioneer common stock, with cash paid in lieu of the issuance of any fractional shares of Pioneer common stock. The exchange ratio is fixed, which means that it will not change between now and the closing date, regardless of whether the market price of either Pioneer common stock or Parsley Class A common stock changes. Therefore, the value of the merger consideration will depend on the market price of Pioneer common stock at the effective time. The market price of Pioneer common stock has fluctuated since the date of the announcement of the parties’ entry into the merger agreement and will continue to fluctuate from the date of this joint proxy statement/prospectus to the date of the Parsley special meeting and the Pioneer special meeting, the date the mergers are satisfiedcompleted and thereafter. The market price of Pioneer common stock, when received by Parsley Class A stockholders and Parsley LLC unitholdersafter the mergers are completed, could be greater than, less than or the same as the market price of Pioneer common stock on the date of this joint proxy statement/prospectus or at the time of the Parsley special meeting. Accordingly, you should obtain current stock price quotations for Pioneer common stock and Parsley Class A common stock before deciding how to vote or abstain from voting on any of the proposals described in this joint proxy statement/prospectus.

The market price for Pioneer common stock following the closing may be affected by factors different from those that historically have affected or currently affect Pioneer common stock and Parsley Class A common stock.

Upon completion of the mergers, Parsley Class A stockholders and Parsley LLC unitholders will receive shares of Pioneer common stock. Pioneer’s financial position may differ from its financial position before the completion of the mergers, and the results of operations of the combined company may be affected by some cases, waived. The obligationsfactors that are different from those currently affecting the results of operations of Pioneer and those currently affecting the results of operations of Parsley. Accordingly, the market price and performance of Pioneer Southwestcommon stock is likely to be different from the performance of Parsley Class A common stock in the absence of the mergers. In addition, general fluctuations in stock markets could have a material adverse effect on the market for, or liquidity of, Pioneer common stock, regardless of Pioneer’s actual operating performance. For a discussion of

the businesses of Pioneer and Parsley and important factors to consider in connection with those businesses, see the documents incorporated by reference herein and referred to in “Where You Can Find More Information.”

Pioneer stockholders and Parsley stockholders, in each case as of immediately prior to the mergers, will have reduced ownership in the combined company.

Based on the number of issued and outstanding shares of Parsley Class A common stock and Parsley LLC units as of November 13, 2020 and the number of issued and outstanding Parsley equity awards currently estimated to be payable in shares of Pioneer common stock in connection with the mergers, Pioneer anticipates issuing approximately 52 million shares of Pioneer common stock pursuant to the merger agreement. The actual number of shares of Pioneer common stock to be issued pursuant to the merger agreement will be determined at the completion of the mergers based on the number of shares of Parsley Class A common stock and Parsley LLC units issued and outstanding immediately prior to such time and the number of issued and outstanding Parsley equity awards payable in shares of Pioneer common stock in connection with the mergers. The issuance of these new shares could have the effect of depressing the market price of Pioneer common stock, through dilution of earnings per share or otherwise. Any dilution of, or delay of any accretion to, Pioneer’s earnings per share could cause the price of Pioneer common stock to decline or increase at a reduced rate.

Immediately after the completion of the mergers, it is expected that Pioneer stockholders as of immediately prior to the mergers will own approximately 76%, and Parsley stockholders as of immediately prior to the mergers will own approximately 24%, of the issued and outstanding shares of Pioneer common stock. As a result, Pioneer’s current stockholders and Parsley’s current stockholders will have less influence on the policies of the combined company than they currently have on the policies of Pioneer and Parsley, respectively.

Pioneer and Parsley must obtain certain regulatory approvals and clearances to consummate the mergers, which, if delayed, not granted or granted with unacceptable conditions, could prevent, substantially delay or impair consummation of the mergers, result in additional expenditures of money and resources or reduce the anticipated benefits of the mergers.

The completion of the mergers is subject to antitrust review in the United States. Under the HSR Act and the rules promulgated thereunder, the mergers cannot be completed until the parties to the merger agreement have given notification and furnished information to the FTC and the DOJ, and until the applicable waiting period has expired or has been terminated.

On November 12, 2020, Pioneer and Parsley received notice of early termination of the applicable waiting period under the HSR Act.

At any time before or after consummation of the mergers, notwithstanding the early termination of the applicable waiting period under the HSR Act, the FTC, the DOJ or any state could take such action under antitrust laws as it deems necessary or desirable in the public interest, including seeking to enjoin the completion of the mergers or seeking the divestiture of substantial assets of Pioneer or Parsley or their respective subsidiaries. Private parties may also seek to take legal action under antitrust laws under certain circumstances.

The mergers are subject to a number of conditions to the obligations of both Pioneer and Parsley to complete the mergers, which, if not fulfilled, or not fulfilled in a timely manner, may delay completion of the mergers or result in termination of the merger agreement.

The respective obligations of each of Parsley and Pioneer to effect the mergers are subject to among other things,the satisfaction at or prior to the effective time of the following conditions:

 

the approval of the Parsley merger proposal willby Parsley stockholders must have been approved by obtained;

the affirmative vote atapproval of the Pioneer Southwest special meetingstock issuance proposal by Pioneer stockholders must have been obtained;

shares of holders, as ofPioneer common stock that will be issued in the record datemergers, or reserved for the Pioneer Southwest special meeting, of a majority of the outstanding Pioneer Southwest common units;

all filings required to be made prior to the effective time with, and all other consents, approvals, permits and authorizations required to be obtained prior to the effective time from, any governmental authorityissuance in connection with the execution and delivery of the merger agreement and the consummation of the merger transactions by the parties or their affiliates willmergers, must have been made or obtained, except where the failure to obtain such consents, approvals, permits and authorizations could not be reasonably likely to result in a material adverse effectapproved for listing on Pioneer or Pioneer Southwest; provided, however, that prior to invoking this condition, the invoking party must have used its commercially reasonable efforts to make all required filings and to obtain all required consents, approvals, permits and authorizations as required under the merger agreement;NYSE, upon official notice of issuance;

 

no order, decree or injunction of any court or agency of competent jurisdiction will be in effect, and no law will have been enacted or adopted, that enjoins, prohibits or makes illegal the consummation of any of the merger transactions, and no action, proceeding or investigation by any governmental authority with respect to the merger or the other merger transactions may be pending that seeks to restrain, enjoin, prohibit or delay the consummation of the merger or such other merger transaction or to impose any material restrictions or requirements thereon or on Pioneer or Pioneer Southwest with respect to the merger transactions; provided, however, that prior to invoking this condition, the invoking party must have used its commercially reasonable efforts in good faith to consummate the merger as required under the merger agreement;

the registration statement on Form S-4, of which this joint proxy statement/prospectus isforms a part, will have become effective under the Securities Act, and no stop order suspending theits effectiveness of the registration statement may have been issued and no proceedings for that purpose may have been initiated or threatened by the SEC; andbe in effect;

 

no injunctions or decrees by any relevant governmental entity that prevent the shares of Pioneer common stockmergers may be outstanding;

any waiting period under the HSR Act relating to be issuedthe mergers must have expired or been terminated;

subject to certain exceptions and materiality standards provided in the merger will have been approved for listing on the NYSE, subject to official notice of issuance.

The obligation of Pioneer to effect the merger is further subject to the satisfaction by Pioneer Southwest, on or prior to the closing date of the merger, of each of the following conditions, or the waiver thereof by Pioneer:

each ofagreement, the representations and warranties contained inof the merger agreement of Pioneer Southwest and Pioneer Southwest GP qualified as to materiality or material adverse effectother party must be true and correct in all respects and those not so qualified must be true and correct in all material respects, in each case, as of the date of the merger agreement and uponas of the closing date, and such party must have received an officer’s certificate from the other party to that effect;

the other party must have performed or complied in all material respects with all of its obligations under the merger agreement, and such party must have received an officer’s certificate from the other party to that effect; and

Parsley must have received a tax opinion from its counsel to the effect that the integrated mergers, taken together, will constitute a “reorganization” within the meaning of Section 368(a) of the Code.

Many of the conditions to completion of the mergers are not within either Pioneer’s or Parsley’s control, and neither company can predict when, or if, these conditions will be satisfied. If any of these conditions are not satisfied or waived prior to the outside date, it is possible that the merger agreement may be terminated. Although Pioneer and Parsley have agreed in the merger agreement to use reasonable best efforts, subject to certain limitations, to complete the mergers as promptly as practicable, these and other conditions to the completion of the mergers may fail to be satisfied. In addition, satisfying the conditions to and completing the mergers may take longer, and could cost more, than Pioneer and Parsley expect. Neither Pioneer nor Parsley can predict whether and when these other conditions will be satisfied. Furthermore, the requirements for obtaining the required clearances and approvals could delay the completion of the mergers for a significant period of time or prevent them from occurring. Any delay in completing the mergers may adversely affect the cost savings and other benefits that Pioneer and Parsley expect to achieve if the mergers and the integration of the companies’ respective businesses are completed within the expected timeframe. There can be no assurance that all required regulatory approvals will be obtained or obtained prior to the termination date. For additional information, please see “The Merger Agreement—Conditions Precedent to the Mergers.”

If the integrated mergers, taken together, do not qualify as a “reorganization” within the meaning of Section 368(a) of the Code, Parsley Class A stockholders may be required to pay substantial U.S. federal income taxes.

The integrated mergers are intended to qualify as a “reorganization” within the meaning of Section 368(a) of the Code, and Pioneer and Parsley intend to report the integrated mergers consistent with such qualification. It is a condition to Parsley’s obligation to complete the mergers that it receive an opinion from its tax counsel to the effect that the integrated mergers, taken together, will qualify as a “reorganization” within the meaning of Section 368(a) of the Code. This opinion will be based on customary assumptions and representations from each of Pioneer and Parsley, as well as certain covenants and undertakings by Pioneer and Parsley. If any of the representations, assumptions, covenants or undertakings upon which the opinion is based is or becomes incorrect, incomplete or inaccurate or is violated, the validity of the opinion may be affected and the U.S. federal income tax consequences of the integrated mergers could differ materially from those described herein. An opinion of counsel represents such counsel’s best legal judgment but is not binding on the Internal Revenue Service (the “IRS”) or any court. Neither Pioneer nor Parsley intends to obtain a ruling from the IRS with respect to the tax

consequences of the integrated mergers. Accordingly, there can be no assurance that the IRS would not challenge the conclusions reflected in the opinion or that a court would not sustain such a challenge. If the IRS or a court determines that the integrated mergers, taken together, should not be treated as a “reorganization” within the meaning of Section 368(a) of the Code, a U.S. holder of Parsley Class A common stock would generally recognize taxable gain or loss upon the exchange of Parsley Class A common stock for Pioneer common stock pursuant to the integrated mergers. See “The Mergers—Material U.S. Federal Income Tax Consequences”.

The Opco merger is expected to be a taxable event for Parsley LLC unitholders, and the resulting tax liability, if any, of a Parsley LLC unitholder will depend on such unitholder’s particular situation. Additionally, the amount and character of any taxable gain or loss recognized by a Parsley LLC unitholder as a result of the Opco merger could be different than anticipated, potentially resulting in a tax liability that is more than expected.

The exchange of Parsley LLC units for shares of Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any) in the Opco merger is intended to be a taxable event for Parsley LLC unitholders, even though Parsley LLC unitholders will receive no cash consideration (other than any cash received in lieu of fractional shares of Pioneer common stock) in the Opco merger. The amount and character of gain or loss recognized by each Parsley LLC unitholder as a result of such taxable exchange will vary depending on such unitholder’s particular situation, including the value of the Pioneer common stock received by such unitholder, whether such unitholder receives any cash in lieu of fractional shares of Pioneer common stock in the Opco merger or a TRA termination payment, and the adjusted tax basis of such unitholder’s Parsley LLC units (and any changes to such tax basis as a result of Parsley LLC’s allocations of income, gain, loss and deduction to such unitholder for the taxable year that includes the Opco merger). Moreover, Parsley LLC unitholders that are subject to the passive loss rules may have suspended passive losses that may become available to offset a portion of the gain recognized by such Parsley LLC unitholder in connection with the same effect as though allOpco merger.

Because, among other things, a Parsley LLC unitholder will not know, until the effective time of the Opco merger, the value of the shares of Pioneer common stock it will receive in the Opco merger, a Parsley LLC unitholder will not be able to calculate the amount of its taxable gain or loss until such representationstime using the information available to such unitholder at that time and warranties had been made onwill not be able to finally determine its taxable gain or loss until it receives it Schedule K-1 for the closing date (in either case, except for any such representations and warranties made asyear in which the Opco merger is consummated. In addition, because prior distributions in excess of a specified date,Parsley LLC unitholder’s allocable share of Parsley LLC’s net taxable income decrease such Parsley LLC unitholder’s tax basis in which case asits Parsley LLC units, the amount, if any, of such date); provided, however, that no representations and warrantiesprior excess distributions with respect to such Parsley LLC units will, in effect, become taxable income to a Parsley LLC unitholder if the aggregate value of the consideration received (or treated for tax purposes as received) in the Opco merger is greater than such Parsley LLC unitholder’s adjusted tax basis in its Parsley LLC units, even if the aggregate value of the consideration received (or treated for tax purposes as received) in the Opco merger is less than such Parsley LLC unitholder’s original cost basis in its Parsley LLC units. Furthermore, a portion of this gain or loss, which portion could be substantial, will be deemed to be untrueseparately computed and taxed as ordinary income or incorrectloss to the extent thatattributable to assets giving rise to depreciation recapture or other “unrealized receivables” or to “inventory items” owned by Parsley LLC and its subsidiaries. For additional information, please see “The Mergers—Material U.S. Federal Income Tax Consequences”.

The U.S. federal income tax treatment to Parsley LLC unitholders with respect to owning and disposing of any executive officer or directorshares of Pioneer common stock received in the Opco merger will be different than the U.S. federal income tax treatment to them with respect to owning and disposing of their Parsley LLC units.

Parsley LLC is classified as a partnership for U.S. federal income tax purposes and is not generally subject to entity-level U.S. federal income tax. Instead, each Parsley LLC unitholder is required to take into account such unitholder’s share of items of income, gain, loss, and deduction of Parsley LLC in computing its U.S. federal income tax liability, regardless of whether cash distributions are made to such Parsley LLC unitholder by Parsley

LLC. A distribution of cash by Parsley LLC to a Parsley LLC unitholder who is a U.S. holder (as defined in the section titled “The MergersMaterial U.S. Federal Income Tax Consequences”) is generally not taxable for U.S. federal income tax purposes unless the amount of cash distributed is in excess of the Parsley LLC unitholder’s adjusted tax basis in its Parsley LLC units. Gain or loss recognized by a Parsley LLC unitholder who is a U.S. holder in connection with the disposition of its Parsley LLC units will generally be capital gain or loss. However, a portion of such gain or loss, which portion could be substantial, is separately computed and taxed as ordinary income or loss under Section 751 of the Code to the extent attributable to assets giving rise to depreciation recapture or other “unrealized receivables” or to “inventory items” owned by Parsley LLC and its subsidiaries. Consequently, a Parsley LLC unitholder may recognize both ordinary income and capital loss in connection with a disposition of its Parsley LLC units.

In contrast, Pioneer is classified as a corporation for U.S. federal income tax purposes, and thus, Pioneer (and not its stockholders) is subject to U.S. federal income tax on its taxable income. A distribution of cash with respect to Pioneer common stock by Pioneer to a stockholder who is a U.S. holder will generally be included in such U.S. holder’s income as dividend income to the extent paid from Pioneer’s current or accumulated “earnings and profits” (as determined under U.S. federal income tax principles). A portion of the cash distributed to Pioneer stockholders by Pioneer after the mergers may exceed Pioneer’s current and accumulated earnings and profits. Cash distributions in excess of Pioneer’s current and accumulated earnings and profits will first be treated as a non- taxable return of capital to the extent of (and reducing, but not below zero) a U.S. holder’s adjusted tax basis in its Pioneer common stock and will thereafter be treated as capital gain from the sale or exchange of such Pioneer common stock. A Pioneer stockholder who is a U.S. holder generally will recognize capital gain or loss on a disposition of its Pioneer common stock.

Pioneer’s ability to utilize its historic U.S. net operating loss carryforwards and those of Parsley may be limited.

As of December 31, 2019, Pioneer and Parsley had U.S. federal net operating loss carryforwards (“NOLs”) of approximately $4.8 billion and $587.1 million, respectively, $2.8 billion and $535.3 million, respectively, of which were incurred prior to January 1, 2018 and will begin to expire, if unused, in 2032 and 2034, respectively, and $2.0 billion and $51.8 million, respectively, of which were incurred on or after January 1, 2018 and will not expire and will be carried forward indefinitely. Pioneer’s ability to utilize these NOLs and other tax attributes to reduce future taxable income following the consummation of the mergers depends on many factors, including its future income, which cannot be assured. Section 382 of the Code (“Section 382”) generally imposes an annual limitation on the amount of NOLs that may be used to offset taxable income when a corporation has undergone an “ownership change” (as determined under Section 382). An ownership change generally occurs if one or more stockholders (or groups of stockholders) who are each deemed to own at least 5% of such corporation’s stock increase their ownership by more than 50 percentage points over their lowest ownership percentage within a rolling three-year period. In the event that an ownership change occurs, utilization of the relevant corporation’s NOLs would be subject to an annual limitation under Section 382, generally determined, subject to certain adjustments, by multiplying (i) the fair market value of such corporation’s stock at the time of the ownership change by (ii) a percentage approximately equivalent to the yield on long-term tax-exempt bonds during the month in which the ownership change occurs. Any unused annual limitation may be carried over to later years.

Parsley is expected to undergo an ownership change under Section 382 as a result of the mergers, which, based on information currently available, may trigger a limitation (calculated as described above) on Pioneer’s ability to utilize any historic Parsley NOLs and could cause some of Parsley’s NOLs incurred prior to January 1, 2018 to expire before Pioneer would be able to utilize them to reduce taxable income in future periods. While Pioneer’s issuance of stock in the mergers would, standing alone, be insufficient to result in an ownership change with respect to Pioneer, we cannot assure you that Pioneer will not undergo an ownership change as a result of the mergers taking into account other changes in ownership of Pioneer stock occurring within the relevant three-year period described above. If Pioneer were to undergo an ownership change, it may be prevented from fully utilizing its historic NOLs incurred prior to January 1, 2018.

Uncertainties associated with the mergers may cause a loss of management personnel and other key employees of Parsley, which could adversely affect the future business and operations of Pioneer following the mergers.

Pioneer and Parsley are dependent on the experience and industry knowledge of such inaccuracy astheir officers and other key employees to execute their business plans. Pioneer’s success after the mergers will depend in part upon its ability to retain key management personnel and other key employees. Current and prospective employees of Parsley may experience uncertainty about their roles within Pioneer following the mergers or other concerns regarding the timing and completion of the datemergers or the operations of Pioneer following the mergers, any of which may have an adverse effect on the ability of Parsley to retain or attract key management and other key personnel. In addition, the loss of key Parsley personnel could diminish the anticipated benefits of the mergers. No assurance can be given that Pioneer, following the mergers, will be able to retain or attract key management personnel and other key employees of Parsley to the same extent that Pioneer and Parsley have previously been able to retain or attract their own employees.

The business relationships of Pioneer and Parsley may be subject to disruption due to uncertainty associated with the mergers, which could have a material adverse effect on the results of operations, cash flows and financial position of Pioneer or Parsley pending and following the mergers.

Parties with which Pioneer or Parsley do business may experience uncertainty associated with the mergers, including with respect to current or future business relationships with Pioneer or Parsley following the mergers. Pioneer’s and Parsley’s business relationships may be subject to disruption as customers, distributors, suppliers, vendors, landlords, joint venture partners and other business partners may attempt to delay or defer entering into new business relationships, negotiate changes in existing business relationships or consider entering into business relationships with parties other than Pioneer or Parsley following the mergers. These disruptions could have a material and adverse effect on the results of operations, cash flows and financial position of Pioneer or Parsley, regardless of whether the mergers are completed, as well as a material and adverse effect on Pioneer’s ability to realize the expected cost savings and other benefits of the mergers. The risk, and adverse effect, of any disruption could be exacerbated by a delay in completion of the mergers or termination of the merger agreement; provided, further, however, thatagreement.

The merger agreement subjects Pioneer and Parsley to restrictions on their respective business activities prior to the immediately preceding proviso will not apply if any member ofeffective time.

The merger agreement subjects Pioneer and Parsley to restrictions on their respective business activities prior to the Pioneer Southwest Conflicts Committee had actual knowledge of any such inaccuracy as of the date of theeffective time. The merger agreement;

agreement obligates each and all of the agreements and covenants of Pioneer Southwest and Pioneer Southwest GPParsley to be performeduse its commercially reasonable efforts to carry on its business in the ordinary course in all material respects, and complied with pursuant to the merger agreement on orobligates Parsley to use its commercially reasonable efforts to preserve substantially intact its business organization, substantially preserve its assets, rights and properties in good repair and condition, keep available in all material respects the services of its current officers, employees and consultants and preserve its goodwill and its relationships with material customers, suppliers, licensors, licensees, distributors and others having material business dealings with it. These restrictions could prevent Pioneer and Parsley from pursuing certain business opportunities that arise prior to the effective time mustand are outside the ordinary course of business. See “The Merger Agreement—Conduct of Business” for additional details.

Parsley directors and executive officers have been duly performed and complied withinterests in all material respects;

Pioneer will have received a certificate signed by the chief executive officer, chief financial officermergers that may be different from, or executive vice president and general counsel of Pioneer Southwest GP, dated asin addition to, the interests of the closing date,Parsley stockholders generally.

In considering the recommendation of the Parsley board that Parsley stockholders vote in favor of the Parsley merger proposal and the Parsley compensation proposal, Parsley stockholders should be aware of and take into account the fact that certain Parsley directors and executive officers have interests in the mergers that may be different from, or in addition to, the effectinterests of Parsley stockholders generally. These interests include, among others, TRA termination payments, severance rights and rights to continuing indemnification and

directors’ and officers’ liability insurance. See “The MergersInterests of Certain Parsley Directors and Executive Officers in the Mergers” for a more detailed description of these interests. The Parsley board was aware of and carefully considered these interests, among other matters, in evaluating the terms and structure, and overseeing the negotiation, of the mergers, in approving the merger agreement and the transactions contemplated thereby, including the mergers, and in recommending that the conditions describedParsley stockholders approve the Parsley merger proposal and the Parsley compensation proposal.

The merger agreement limits Pioneer’s and Parsley’s respective ability to pursue alternatives to the mergers, may discourage other companies from making a favorable alternative transaction proposal and, in specified circumstances, could require Pioneer or Parsley to pay the first two bullet points immediately above have been satisfied;other party a termination fee.

The merger agreement contains certain provisions that restrict each of Pioneer’s and

there must not have occurred a material adverse effect Parsley’s ability to solicit, initiate, endorse, knowingly encourage or knowingly facilitate any inquiry, proposal or offer that constitutes, or would reasonably be expected to lead to, an acquisition proposal with respect to Pioneer Southwestor Parsley, as applicable, and Pioneer and Parsley have each agreed to certain terms and conditions relating to their ability to enter into, continue or otherwise participate in any discussions or negotiations regarding, or furnish to a third party any non-public information or data with respect to, or otherwise cooperate in any way with, any acquisition proposal. Further, even if the Pioneer board or the Parsley board withdraws, modifies or qualifies in any manner adverse to the other party its recommendation with respect to the Pioneer stock issuance proposal or the Parsley merger proposal, as applicable, unless the merger agreement has been terminated in accordance with its terms, both parties will still be required to submit the Pioneer stock issuance proposal or the Parsley merger proposal, as applicable, to a vote at their respective special meetings. In addition, Pioneer and Parsley generally have an opportunity to offer to modify the terms of the merger agreement in response to any competing acquisition proposals or intervening events before the Parsley board or Pioneer board, respectively, may withdraw, modify or qualify their respective recommendations. The merger agreement further provides that under specified circumstances, including after receipt of certain alternative acquisition proposals, Parsley may be required to pay Pioneer a cash termination fee equal to $135.0 million or Pioneer may be required to pay Parsley a cash termination fee equal to $270.0 million. See “The Merger Agreement—Termination Fees and Expense Reimbursement” for additional details.

These provisions could discourage a potential third-party acquirer or other strategic transaction partner that might have an interest in acquiring all or a significant portion of Parsley or Pioneer from considering or pursuing an alternative transaction with either party or proposing such a transaction, even if it were prepared, in Parsley’s case, to pay consideration with a higher per share value than the total value proposed to be paid or received in the mergers. These provisions might also result in a potential third-party acquirer or other strategic transaction partner proposing to pay a lower price than it might otherwise have proposed to pay because of the added expense of the termination fee that may become payable in certain circumstances.

The financial forecasts are based on various assumptions that may not be realized.

The financial estimates set forth in the forecasts included under the sections “The Mergers—Certain Pioneer Unaudited Prospective Financial and Operating Information” and “The Mergers—Certain Parsley Unaudited Prospective Financial and Operating Information” were based on assumptions of, and information available to, Pioneer’s management and Parsley’s management, as applicable, when prepared, and these estimates and assumptions are subject to uncertainties, many of which are beyond Pioneer’s and Parsley’s control and may not be realized. Many factors mentioned in this joint proxy statement/prospectus, including the risks outlined in this “Risk Factors” section and the events or circumstances described under “Cautionary Statement Regarding Forward-Looking Statements,” will be important in determining the combined company’s future results. As a result of these contingencies, actual future results may vary materially from Pioneer’s and Parsley’s estimates. In view of these uncertainties, the inclusion of financial estimates in this joint proxy statement/prospectus is not and should not be viewed as a representation that the forecasted results will necessarily reflect actual future results.

Pioneer’s and Parsley’s financial estimates were not prepared with a view toward public disclosure, and such financial estimates were not prepared with a view toward compliance with published guidelines of any regulatory or professional body. Further, any forward-looking statement speaks only as of the date on which it is made, and neither Pioneer nor Parsley undertakes any obligation, other than as required by applicable law, to update the financial estimates herein to reflect events or circumstances after the date those financial estimates were prepared or to reflect the occurrence of anticipated or unanticipated events or circumstances.

The financial estimates of Pioneer and Parsley included in this joint proxy statement/prospectus have been prepared by, and are the responsibility of, Pioneer and Parsley, as applicable. Moreover, neither Pioneer’s nor Parsley’s independent accountants, nor any other independent accountants, have compiled, examined or performed any procedures with respect to Pioneer’s or Parsley’s prospective financial information contained herein, nor have they expressed any opinion or any other form of assurance on such information or achievability thereof, and, accordingly, such independent accountants assume no responsibility for, and disclaim any association with, Pioneer’s and Parsley’s prospective financial information. The reports of such independent accountants included or incorporated by reference herein, as applicable, relate exclusively to the historical financial information of the entities named in those reports and do not cover any other information in this joint proxy statement/prospectus and should not be read to do so. See “The Mergers—Certain Pioneer Unaudited Prospective Financial and Operating Information” and “The Mergers—Certain Parsley Unaudited Prospective Financial and Operating Information” for more information.

The opinions of Pioneer’s and Parsley’s respective financial advisors will not reflect changes in circumstances between the signing of the merger agreement and the closing date.

completion of the mergers.

The obligationEach of Pioneer Southwest to effectand Parsley has received opinions from its financial advisors in connection with the signing of the merger agreement, but has not obtained any updated opinion from its financial advisors as of the date of this joint proxy statement/prospectus. Changes in the operations and prospects of Pioneer or Parsley, general market and economic conditions and other factors that may be beyond the control of Pioneer or Parsley, and on which the companies’ respective financial advisors’ opinions were based, may significantly alter the value of Pioneer or Parsley or the prices of the shares of Pioneer common stock or Parsley Class A common stock by the time the mergers are completed. The opinions do not speak as of the time the mergers will be completed or as of any date other than the date of such opinions. Because neither Pioneer nor Parsley currently anticipates asking its financial advisors to update their opinions, the opinions will not address the fairness of the merger consideration from a financial point of view at the time the mergers are completed. The Pioneer board’s recommendation that Pioneer stockholders vote in favor of the Pioneer stock issuance proposal and the Parsley board’s recommendation that Parsley stockholders vote in favor of the Parsley merger proposal, however, are made as of the date of this joint proxy statement/prospectus.

Failure to complete the mergers could negatively impact Pioneer’s or Parsley’s stock price and have a material adverse effect on their results of operations, cash flows and financial positions.

If the mergers are not completed for any reason, including as a result of failure to obtain all requisite regulatory approvals or if the Pioneer stockholders or Parsley stockholders fail to approve the applicable proposals, the ongoing businesses of Pioneer and Parsley may be materially adversely affected and, without realizing any of the benefits of having completed the mergers, Pioneer and Parsley would be subject to a number of risks, including the following:

Pioneer and Parsley may experience negative reactions from the financial markets, including negative impacts on their respective stock prices;

Pioneer and Parsley and their respective subsidiaries may experience negative reactions from their respective customers, distributors, suppliers, vendors, landlords, joint venture partners and other business partners;

Pioneer and Parsley will still be required to pay certain significant costs relating to the mergers, such as legal, accounting, financial advisor and printing fees;

Pioneer or Parsley may be required to pay a termination fee or expense reimbursement fee as required by the merger agreement;

the merger agreement places certain restrictions on the conduct of the respective businesses pursuant to the terms of the merger agreement, which may delay or prevent the respective companies from undertaking business opportunities that, absent the merger agreement, may have been pursued;

matters relating to the mergers (including integration planning) require substantial commitments of time and resources by each company’s management, which may have resulted in the distraction of each company’s management from ongoing business operations and pursuing other opportunities that could have been beneficial to the companies; and

litigation related to any failure to complete the mergers or related to any enforcement proceeding commenced against Pioneer or Parsley to perform their respective obligations pursuant to the merger agreement.

If the mergers are not completed, the risks described above may materialize and they may have a material adverse effect on Pioneer’s or Parsley’s results of operations, cash flows, financial position and stock prices.

The shares of Pioneer common stock to be received by Parsley Class A stockholders and Parsley LLC unitholders upon completion of the mergers will have different rights from shares of Parsley common stock or Parsley LLC units.

Upon completion of the mergers, Parsley Class A stockholders and Parsley LLC unitholders (other than Parsley) will no longer be stockholders of Parsley or unitholders of Parsley LLC. Instead, former Parsley Class A stockholders and Parsley LLC unitholders (other than Parsley) will become Pioneer stockholders, and, while their rights as Pioneer stockholders will continue to be governed by the laws of the state of Delaware, their rights will be subject to and governed by the terms of the Pioneer certificate of incorporation and the Pioneer bylaws. The laws of the state of Delaware and terms of the Pioneer certificate of incorporation and the Pioneer bylaws are in some respects different than the terms of the Parsley certificate of incorporation, the Parsley bylaws and the Parsley LLC agreement, which currently govern the rights of Parsley stockholders and Parsley LLC unitholders, as applicable. See “Comparison of Equityholder Rights” for a discussion of the different rights associated with shares of Pioneer common stock, shares of Parsley common stock and Parsley LLC units.

Completion of the mergers may trigger change in control or other provisions in certain agreements to which Parsley is furthera party.

The completion of the mergers may trigger change in control or other provisions in certain agreements to which Parsley, Parsley LLC or another subsidiary of Parsley is a party. If Pioneer, Parsley or their respective subsidiaries are unable to negotiate waivers of those provisions, the counterparties may exercise their rights and remedies under the agreements, potentially terminating the agreements, or seeking monetary damages. Even if Pioneer and Parsley are able to negotiate waivers, the counterparties may require a fee for such waivers or seek to renegotiate the agreements on terms less favorable to Parsley.

The indentures governing Parsley’s $650,000,000 principal amount outstanding of 5.375% senior notes due 2025, $448,031,000 principal amount outstanding of 5.250% senior notes due 2025, $494,607,000 principal amount outstanding of 5.875% senior notes due 2026, $700,000,000 principal amount outstanding of 5.625% senior notes due 2027 and $399,472,000 principal amount outstanding of 4.125% senior notes due 2028 (collectively, the “Parsley notes”) require Parsley LLC to make an offer to repurchase the Parsley notes at a purchase price in cash equal to 101% of the aggregate principal amount of notes repurchased, plus accrued and unpaid interest (collectively, the “change of control purchase price”), within 30 days of the occurrence of a

change of control transaction. A “change of control” transaction, as defined under the Parsley notes indentures, occurs when, among other things, a transaction is consummated and, as a result, any person (other than certain legacy holders) becomes the beneficial owner of more than 50% of Parsley LLC’s voting stock (as defined in the applicable indenture). In the case of the 5.875% senior notes due 2026 and the 4.125% senior notes due 2028, however, such transaction is not a “change of control” transaction unless it is followed by a ratings decline within 90 days or 60 days, respectively.

Under each of the indentures governing the 5.375% senior notes due 2025, the 5.250% senior notes due 2025, and the 5.625% senior notes due 2027, the completion of the mergers is anticipated to constitute a change of control and, as a result, Parsley LLC will be required to make an offer to each holder of such Parsley notes to purchase all or any part of that holder’s notes at the change of control purchase price. If the mergers are followed by a ratings decline (as described in the applicable indenture, within 90 days for the 5.875% senior notes due 2026 or within 60 days for the 4.125% senior notes due 2028), a “change of control” may be deemed to have occurred for those notes as well. If the holders of the Parsley notes accept any such offer of repurchase of their notes, such repurchase could significantly affect the liquidity, business, liabilities and financial condition of Pioneer following the completion of the mergers.

In addition, the completion of the transaction will constitute a change of control under Parsley LLC’s revolving credit facility (the “Parsley revolving credit facility”). As a result, at the direction of the lenders holding a majority of the outstanding loans under the Parsley revolving credit facility, the commitments under the Parsley revolving credit facility may be terminated and the outstanding balance under the Parsley revolving credit facility may be accelerated and become due and payable by Parsley LLC in connection with the completion of the mergers. As of September 30, 2020, Parsley LLC had $305 million of outstanding borrowings under the Parsley revolving credit facility.

Additionally, the completion of the mergers will constitute a change of control under the Parsley employment agreements (as defined below).

Further, the mergers will constitute a change of control event under the tax receivable agreement. In connection with its initial public offering (“IPO”) in 2014, Parsley entered into the tax receivable agreement with the TRA holders, pursuant to which Parsley agreed to make specified future payments to the TRA holders relating to tax attributes generated to Parsley’s benefit in future taxable exchanges of Parsley LLC units by TRA holders, with such payment obligations accelerating upon a change of control (as defined in the tax receivable agreement). It is currently estimated, as of November 13, 2020, that the TRA termination payments made upon the completion of the mergers to the TRA holders will be, in the aggregate, approximately $158.9 million.

For additional details, see “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers.”

Pioneer and Parsley are expected to incur significant transaction costs in connection with the mergers, which may be in excess of those anticipated by them.

Pioneer and Parsley have incurred and are expected to continue to incur a number of non-recurring costs associated with negotiating and completing the mergers, combining the operations of the two companies and achieving desired synergies. These costs have been, and will continue to be, substantial and, in many cases, will be borne by Pioneer and Parsley whether or not the mergers are completed. A substantial majority of non- recurring expenses will consist of transaction costs and include, among others, fees paid to financial, legal, accounting and other advisors, employee retention, severance and benefit costs and filing fees. Pioneer will also incur costs related to formulating and implementing integration plans, including facilities and systems consolidation costs and other employment-related costs. Pioneer and Parsley will continue to assess the magnitude of these costs, and additional unanticipated costs may be incurred in connection with the mergers and the integration of the two companies’ businesses. While Pioneer and Parsley have assumed that a certain level of

expenses would be incurred, there are many factors beyond their control that could affect the total amount or the timing of the expenses. The elimination of duplicative costs, as well as the realization of other efficiencies related to the integration of the businesses, may not offset integration-related costs and achieve a net benefit in the near term, or at all. The costs described above and any unanticipated costs and expenses, many of which will be borne by Pioneer or Parsley even if the mergers are not completed, could have an adverse effect on Pioneer’s or Parsley’s financial condition and operating results.

Litigation relating to the mergers could result in an injunction preventing the completion of the mergers and/or substantial costs to Pioneer and Parsley.

Securities class action lawsuits and derivative lawsuits are often brought against public companies that have entered into acquisition, merger, or other business combination agreements. Even if such a lawsuit is without merit, defending against these claims can result in substantial costs and divert management time and resources. An adverse judgment could result in monetary damages, which could have a negative impact on Pioneer’s and Parsley’s respective liquidity and financial condition.

Lawsuits that may be brought against Pioneer, Parsley or their respective directors could also seek, among other things, injunctive relief or other equitable relief, including a request to rescind parts of the merger agreement already implemented and to otherwise enjoin the parties from consummating the mergers. One of the conditions to the closing of the mergers is that no injunction by any court or other tribunal of competent jurisdiction has been entered and continues to be in effect and no law has been adopted or is effective, in either case that prohibits or makes illegal the closing of the mergers. Consequently, if a plaintiff is successful in obtaining an injunction prohibiting completion of the mergers, that injunction may delay or prevent the mergers from being completed within the expected timeframe or at all, which may adversely affect Pioneer’s and Parsley’s respective business, financial position and results of operation. Either Pioneer or Parsley may terminate the merger agreement if any court of competent jurisdiction or other governmental entity issues any judgment, order, injunction, rule or decree, or takes any other action restraining, enjoining or otherwise prohibiting any of the transactions contemplated by the merger agreement, and such judgment, order, injunction, rule, decree or other action becomes final and nonappealable, so long as the party seeking to terminate the merger agreement has used its reasonable best efforts to contest, appeal and remove such judgment, order, injunction, rule, decree, ruling or other action in accordance with the terms of the merger agreement.

There can be no assurance that any of the defendants will be successful in the outcome of any potential future lawsuits. The defense or settlement of any lawsuit or claim that remains unresolved at the time the mergers are completed may adversely affect Pioneer’s or Parsley’s business, financial condition, results of operations and cash flows.

The mergers may be completed even though material adverse changes subsequent to the announcement of the mergers, such as industry-wide changes or other events, may occur.

In general, either party can refuse to complete the mergers if there is a material adverse change affecting the other party. However, some types of changes do not permit either party to refuse to complete the transaction, even if such changes would have a material adverse effect on either of the parties. For example, a worsening of Pioneer’s or Parsley’s financial condition or results of operations due to a decrease in commodity prices or general economic conditions would not give the other party the right to refuse to complete the mergers. In addition, the parties have the ability, but are under no obligation, to waive any material adverse change that results in the failure of a closing condition and instead proceed with completing the mergers. If adverse changes occur that affect either party but the parties are still required or voluntarily decide to complete the transaction, Pioneer’s share price, business and financial results after the mergers may suffer.

Parsley Class A stockholders are not entitled to appraisal rights in connection with the mergers.

Appraisal rights are statutory rights that enable stockholders to dissent from certain extraordinary transactions, such as certain mergers, and to demand that the corporation pay the fair value for their shares as

determined by a court in a judicial proceeding instead of receiving the consideration offered to stockholders in connection with the applicable transaction. Under the DGCL, Parsley Class A stockholders will not have rights to an appraisal of the fair value of their shares in connection with the mergers because they are receiving shares of Pioneer common stock and Pioneer common stock is expected to continue to be traded on the NYSE during the pendency of and following the effectiveness of the mergers. However, Parsley Class B stockholders who do not vote in favor of the Parsley merger proposal will be entitled to exercise appraisal rights under the DGCL, solely with respect to their shares of Parsley Class B common stock (and not, for the avoidance of doubt, with respect to any shares of Parsley Class A common stock or Parsley LLC units held by them), in connection with the mergers if they take certain actions and meet certain conditions. See “The Mergers—Appraisal Rights or Dissenters’ Rights” for more information about appraisal rights in connection with the mergers.

The COVID-19 outbreak may adversely affect Pioneer’s and Parsley’s ability to timely consummate the mergers.

COVID-19 and the various precautionary measures attempting to limit its spread taken by many governmental authorities worldwide has had a severe effect on global markets and the global economy. The extent to which the COVID-19 pandemic impacts Pioneer’s and Parsley’s respective business operations will depend on future developments, which are highly uncertain and cannot be predicted, including new information which may emerge concerning the severity of COVID-19 and the nature and extent of governmental actions taken to contain it or treat its impact, among others. COVID-19 and official actions in response to it have made it more challenging for Pioneer, Parsley and relevant third parties to adequately staff their respective businesses and operations, and may cause delay in the companies’ ability to obtain the relevant approvals for the consummation of the mergers.

Risks Relating to Pioneer Following the Mergers

Pioneer may be unable to integrate the business of Parsley successfully or realize the anticipated benefits of the mergers.

The mergers involve the combination of two companies that currently operate as independent public companies. The combination of two independent businesses is complex, costly and time consuming, and each of Pioneer and Parsley will be required to devote significant management attention and resources to integrating their respective business practices and operations. Potential difficulties that the companies may encounter as part of the integration process include the following:

the inability to successfully combine the business of Parsley in a manner that permits Pioneer to achieve, on a timely basis or at all, the enhanced revenue opportunities and cost savings and other benefits anticipated to result from the mergers;

complexities associated with managing the combined businesses, including difficulty addressing possible differences in operational philosophies and the challenge of integrating complex systems, technology, networks and other assets of each of the companies in a seamless manner that minimizes any adverse impact on customers, suppliers, employees and other constituencies;

the assumption of contractual obligations with less favorable or more restrictive terms; and

potential unknown liabilities and unforeseen increased expenses or delays associated with the mergers.

In addition, Pioneer and Parsley have previously operated and, until the completion of the mergers, will continue to operate, independently. It is possible that the integration process could result in:

diversion of the attention of each company’s management; and

the disruption of, or the loss of momentum in, each company’s ongoing businesses or inconsistencies in standards, controls, procedures and policies.

Any of these issues could adversely affect each company’s ability to maintain relationships with customers, suppliers, employees and other constituencies or achieve the anticipated benefits of the mergers, or could reduce each company’s earnings or otherwise adversely affect the business and financial results of Pioneer following the mergers.

The synergies attributable to the mergers may vary from expectations.

Pioneer may fail to realize the anticipated benefits and synergies expected from the mergers, which could adversely affect its business, financial condition and operating results. The success of the mergers will depend, in significant part, on Pioneer’s ability to successfully integrate the acquired business and realize the anticipated strategic benefits and synergies from the combination. Pioneer believes that the addition of Parsley will complement Pioneer’s strategy by providing operational and financial scale, increasing free cash flow, and enhancing Pioneer’s corporate rate of return. However, achieving these goals requires, among other things, realization of the targeted cost synergies expected from the mergers. The anticipated benefits of the transaction may not be realized fully or at all, or may take longer to realize than expected. Actual operating, technological, strategic and revenue opportunities, if achieved at all, may be less significant than expected or may take longer to achieve than anticipated. If Pioneer is not able to achieve these objectives and realize the anticipated benefits and synergies expected from the mergers within the anticipated timing or at all, Pioneer’s business, financial condition and operating results may be adversely affected.

The future results of Pioneer following the mergers will suffer if Pioneer does not effectively manage its expanded operations.

Following the mergers, the size and geographic footprint of the business of Pioneer will increase. Pioneer’s future success will depend, in part, upon its ability to manage this expanded business, which may pose substantial challenges for management, including challenges related to the management and monitoring of new operations and basins and associated increased costs and complexity. Pioneer may also face increased scrutiny from governmental authorities as a result of the increase in the size of its business. There can be no assurances that Pioneer will be successful or that it will realize the expected operating efficiencies, cost savings, revenue enhancements or other benefits currently anticipated from the mergers.

The mergers may result in a loss of customers, distributors, suppliers, vendors, landlords, joint venture partners and other business partners and may result in the termination of existing contracts.

Following the mergers, some of the customers, distributors, suppliers, vendors, landlords, joint venture partners and other business partners of Pioneer or Parsley may terminate or scale back their current or prospective business relationships with Pioneer. Some customers may not wish to source a larger percentage of their needs from a single company or may feel that Pioneer is too closely allied with one of their competitors. In addition, Pioneer and Parsley have contracts with customers, distributors, suppliers, vendors, landlords, joint venture partners and other business partners that may require Pioneer or Parsley to obtain consents from these other parties in connection with the mergers, which may not be obtained on favorable terms or at all. If relationships with customers, distributors, suppliers, vendors, landlords, joint venture partners and other business partners are adversely affected by the mergers, or if Pioneer, following the mergers, loses the benefits of the contracts of Pioneer or Parsley, Pioneer’s business and financial performance could suffer.

The unaudited pro forma condensed combined financial statements and the summary pro forma combined oil, NGL and gas reserve and production data included in this joint proxy statement/prospectus are based on a number of preliminary estimates and assumptions, and the actual results of operations, cash flows and financial position of Pioneer after the mergers may differ materially.

The unaudited pro forma information in this joint proxy statement/prospectus is presented for illustrative purposes only, has been prepared based on available information and certain assumptions and estimates that

Pioneer and Parsley believe are reasonable, and is not necessarily indicative of what Pioneer’s actual financial position or results of operations would have been had the pro forma events been completed on the dates indicated. Further, Pioneer’s actual results and financial position after the pro forma events occur may differ materially and adversely from the unaudited pro forma information included in this joint proxy statement/prospectus. The unaudited pro forma condensed combined financial statements have been prepared with the assumption that Pioneer will be identified as the acquirer under GAAP and reflect adjustments based upon preliminary estimates of the fair value of assets to be acquired and liabilities to be assumed.

Following the completion of the mergers, Pioneer may incorporate Parsley’s hedging activities into Pioneer’s business, and Pioneer may be exposed to additional commodity price risks arising from such hedges.

To mitigate its exposure to changes in commodity prices, Parsley hedges oil prices from time to time, primarily through the use of commodity derivative contracts. If Pioneer assumes existing Parsley hedges, Pioneer will bear the economic impact of all of Parsley’s current hedges following the completion of the mergers. Actual crude oil prices may differ from the combined company’s expectations and, as a result, such hedges may or may not have a negative impact on Pioneer’s business.

Other Risks Relating to Pioneer and Parsley

As a result of entering into the merger agreement, Pioneer’s and Parsley’s businesses are and will be subject to the satisfactionrisks described above. In addition, Pioneer and Parsley are, and following completion of the mergers, Pioneer will be, subject to the risks described in Pioneer’s and Parsley’s Annual Report on Form 10-K for the year ended December 31, 2019 as updated by subsequent Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, which are filed with the SEC and incorporated by reference into this joint proxy statement/prospectus. See “Where You Can Find More Information” for the location of information incorporated by reference into this joint proxy statement/prospectus.

PIONEER SPECIAL MEETING

General

This joint proxy statement/prospectus is being provided to Pioneer stockholders as part of a solicitation of proxies by the Pioneer board for use at the Pioneer special meeting and at any adjournments or postponements of such special meeting. This joint proxy statement/prospectus provides Pioneer stockholders with important information about the Pioneer special meeting and should be read carefully in its entirety.

Date, Time and Place of the Pioneer Special Meeting

The Pioneer special meeting will be a virtual meeting conducted exclusively via live webcast online at www.virtualshareholdermeeting.com/PXD21SM starting at [    :    ] a.m. Central Time (with log-in beginning at [    :    ] a.m. Central Time) on [                ], 2021. Pioneer stockholders will be able to attend the Pioneer special meeting online and vote shares electronically at the meeting by going to www.virtualshareholdermeeting.com/PXD21SM and entering the 16-digit control number included on the proxy card or voting instruction form you received. Because the Pioneer special meeting is completely virtual and being conducted via live webcast, stockholders will not be able to attend the meeting in person.

Purpose of the Pioneer Special Meeting

The Pioneer special meeting is being held to consider and vote on a proposal to approve the issuance of shares of Pioneer common stock in the mergers and other shares of Pioneer common stock reserved for issuance in connection with the mergers, in each case pursuant to the terms of the merger agreement, which is referred to as the Pioneer stock issuance proposal.

Recommendation of the Pioneer Board

The Pioneer board unanimously recommends that Pioneer stockholders vote “FOR” the Pioneer stock issuance proposal.

This joint proxy statement/prospectus contains important information regarding the Pioneer stock issuance proposal and factors that Pioneer stockholders should consider when deciding how to cast their votes. Pioneer stockholders are encouraged to read the entire document carefully, including the annexes to and documents incorporated by reference into this joint proxy statement/prospectus, for more detailed information regarding the merger agreement, including the Pioneer stock issuance proposal, and the mergers.

Voting by Directors and Executive Officers

On the Pioneer record date, Pioneer directors and executive officers, and their affiliates, as a group, beneficially owned and were entitled to vote [                ] shares of Pioneer common stock, or approximately [    ]% of the issued and outstanding shares of Pioneer common stock. Although none of them has entered into any agreement obligating them to do so as a director or executive officer of Pioneer, Pioneer currently expects that all of its directors and executive officers will vote their shares “FOR” the Pioneer stock issuance proposal.

Attendance at the Pioneer Special Meeting

Only Pioneer stockholders of record on the Pioneer record date, beneficial owners of Pioneer common stock on the Pioneer record date and holders of valid proxies for the Pioneer special meeting may attend the virtual Pioneer special meeting. Participating stockholders who log-on to the meeting using his, her or its unique 16-digit control number will also be able to examine the stockholder list during the Pioneer special meeting by following the instructions provided on the meeting website.

Submitting Questions for the Virtual Pioneer Special Meeting

Pioneer stockholders attending the virtual meeting will be in a listen-only mode and will not be able to speak during the webcast. However, in order to maintain the interactive nature of the virtual meeting, stockholders are able submit questions before the meeting at www.proxyvote.com.

Limitations on Submitting Questions for the Virtual Pioneer Special Meeting

Pioneer will answer questions during the Pioneer special meeting that are relevant to meeting matters, comply with the meeting rules of conduct and have been submitted prior to the start of the Pioneer special meeting, subject to time constraints. However, Pioneer reserves the right to exclude questions that are not pertinent to meeting matters or to edit profanity or other inappropriate language. Each stockholder is limited to a total of one question that must be related to the business of the Pioneer special meeting. Each question should cover only one topic and be as succinct as possible. If Pioneer receives substantially similar questions, Pioneer will group such questions together and provide a single response to avoid repetition. The questions of all Pioneer stockholders are welcome. However, the purpose of the Pioneer special meeting must be observed and questions that are not directly related to the business of Pioneer or are not otherwise in good taste, related to personal grievances or otherwise inappropriate (as determined by the chairman of the meeting) will not be answered.

Record Date

The Pioneer board has fixed the close of business on [                ], 2020 as the Pioneer record date for the determination of the Pioneer stockholders entitled to receive notice of, and to vote at, the Pioneer special meeting. The Pioneer stockholders of record on the Pioneer record date are the only Pioneer stockholders that are entitled to receive notice of, and to vote at, the Pioneer special meeting or any adjournments or postponements of the Pioneer special meeting.

Participants in the Pioneer Natural Resources USA, Inc. 401(k) and Matching Plan

Participants in the Pioneer Natural Resources USA, Inc 401(k) Plan (the “Pioneer 401(k) Plan”) who have shares of Pioneer common stock credited to their plan account as of the record date will have the right to direct the Pioneer 401(k) Plan trustee how to vote those shares. The trustee will vote the shares in a participant’s Pioneer 401(k) Plan account in accordance with the participant’s instructions or, if no instructions are received prior to [    :    ] a.m. Central Time on [                ], 2021, the shares credited to that participant’s account will be voted by the trustee in the same proportion as it votes shares for which it did receive timely instructions. Information as to how participants voted the shares credited to their Pioneer 401(k) Plan account will not be disclosed to Pioneer. If a participant holds Pioneer common stock outside of the Pioneer 401(k) Plan, the participant will need to vote those shares separately.

Outstanding Shares as of Record Date and Voting Rights of Pioneer Stockholders

On the Pioneer record date, there were [                ] shares of Pioneer common stock issued and outstanding, held by [                ] holders of record. Each issued and outstanding share of Pioneer common stock entitles its holder of record to one vote at the Pioneer special meeting.

Stockholder List

A complete list of registered Pioneer stockholders entitled to vote at the Pioneer special meeting will be available for inspection at Pioneer’s principal executive offices at 777 Hidden Ridge, Irving, Texas 75038, during ordinary business hours, for a period of no less than ten days before the Pioneer special meeting and will be available during the virtual Pioneer special meeting at www.virtualshareholdermeeting.com/PXD21SM. If a Pioneer stockholder wants to inspect the stockholder list, such stockholder should call the Pioneer corporate secretary at (972) 444-9001 to schedule an appointment or request access.

Quorum; Abstentions and Broker Non-Votes

In order for business to be conducted at the Pioneer special meeting, a quorum must be present. A quorum at the Pioneer special meeting requires the presence of the holders of a majority of the total issued and outstanding shares of Pioneer common stock entitled to vote, present virtually or represented by proxy, at the Pioneer special meeting. An abstention occurs when a stockholder is present for purposes of a quorum by virtually attending the Pioneer special meeting and either does not vote or submits a ballot marked “abstain”. An abstention also occurs when a stockholder does not attend the meeting virtually and instead submits a proxy with an “abstain” instruction. Abstentions will be counted for purposes of determining whether there is a quorum at the Pioneer special meeting. Because it is expected that the only matter to be voted on at the Pioneer special meeting will be non-routine under NYSE rules, brokers will not have discretionary authority to vote on the Pioneer stock issuance proposal; therefore, if you do not provide voting instructions to your broker, bank or other nominee, your shares will not count towards determining whether a quorum is present and your shares will not be voted on the Pioneer stock issuance proposal.

Adjournment

If a quorum is not present or represented or if there are not sufficient votes for the approval of the Pioneer stock issuance proposal, Pioneer expects that the Pioneer special meeting will be adjourned by the chairman of the Pioneer special meeting to solicit additional proxies. In addition, the holders of a majority in voting power of Pioneer common stock entitled to vote at the Pioneer special meeting who are present online or by proxy at the Pioneer special meeting have the power to adjourn such meeting, whether or not a quorum is present. No notice of the reconvened meeting is required to be given if the date, time and place (including the means of remote communication) are announced at the Pioneer special meeting unless the reconvened meeting is more than 30 days after the date for which notice was originally given. At any reconvened Pioneer special meeting at which a quorum is present, (i) any business may be transacted that may have been transacted at the Pioneer special meeting had a quorum been present and (ii) all proxies will be voted in the same manner as the manner in which such proxies would have been voted at the original convening of the Pioneer special meeting, except for any proxies that have been validly revoked or withdrawn prior to the subsequent meeting.

Vote Required

Approval of the Pioneer stock issuance proposal requires the affirmative vote of holders of a majority of the shares of Pioneer common stock present virtually during the Pioneer special meeting or represented by proxy at the Pioneer special meeting and entitled to vote thereon. Abstentions are considered votes cast and will have the same effect as a vote “against” the Pioneer stock issuance proposal. The failure of any Pioneer stockholder to submit a vote (e.g., by not submitting a proxy and not attending and voting online at the virtual meeting) will not be counted in determining the votes cast in connection with the Pioneer stock issuance proposal and will therefore have no effect on the outcome of the Pioneer stock issuance proposal. Because the Pioneer stock issuance proposal is non-routine under NYSE rules, banks, brokers, and other nominees do not have discretionary authority to vote on the Pioneer stock issuance proposal and will not be able to vote on the Pioneer stock issuance proposal absent instructions from the beneficial owner. The failure of a beneficial owner to provide voting instructions to its bank, broker or other nominee will result in the applicable shares not being counted in determining the votes cast in connection with the Pioneer stock issuance proposal, and will therefore have no effect on the outcome of the Pioneer stock issuance proposal.

How to Vote

Pioneer stockholders of record and beneficial owners of Pioneer common stock on the Pioneer record date may vote their shares of Pioneer common stock by submitting a proxy or may vote virtually online at the Pioneer special meeting by following the instructions provided on the proxy card or voting instruction form received. Pioneer recommends that Pioneer stockholders entitled to vote submit a proxy prior to the Pioneer special meeting even if they plan to attend the virtual Pioneer special meeting.

Pioneer stockholders are encouraged to submit a proxy promptly. Each valid proxy received in time will be voted at the Pioneer special meeting according to the choice specified, if any. Executed but uninstructed proxies (i.e., proxies that are properly signed, dated and returned but are not marked to tell the proxies how to vote) will be voted in accordance with the recommendations of the Pioneer board.

Record Holders

Pioneer stockholders of record may vote in one of the following ways:

Internet: Pioneer stockholders of record may submit their proxy over the internet at www.proxyvote.com. Internet voting is available 24 hours a day and will be accessible until 11:59 p.m., Eastern Time (10:59 p.m., Central Time), on [                ], 2021. Stockholders will be given an opportunity to confirm that their voting instructions have been properly recorded. Pioneer stockholders who submit a proxy this way need not send in their proxy card.

Telephone: Pioneer stockholders of record may submit their proxy by calling 1-800-690-6903. Telephone voting is available 24 hours a day and will be accessible until 11:59 p.m., Eastern Time (10:59 p.m., Central Time), on [                ], 2021. Easy-to-follow voice prompts will guide stockholders through the voting and allow them to confirm that their instructions have been properly recorded. Pioneer stockholders who submit a proxy this way need not send in their proxy card.

Mail: Pioneer stockholders of record may submit their proxy by properly completing, signing, dating and mailing their proxy card or voting instruction form in the self-addressed, stamped envelope (if mailed in the United States) included with this joint proxy statement/prospectus. Pioneer stockholders who vote this way should mail the proxy card early enough so that it is received prior to the closing of the polls at the Pioneer special meeting.

Online During the Virtual Meeting: Pioneer stockholders of record may attend the virtual Pioneer special meeting by entering his, her or its unique 16-digit control number and vote online; attendance at the virtual Pioneer special meeting will not, however, in and of itself constitute a vote or a revocation of a prior proxy.

Beneficial Owners

Pioneer stockholders who hold their shares of Pioneer common stock beneficially in “street name” and wish to submit a proxy must provide instructions to the bank, broker or other nominee that holds their shares of record as to how to vote their shares with respect to the Pioneer stock issuance proposal. Most beneficial owners will have a choice of voting before the Pioneer special meeting by proxy over the internet, by telephone or by using a voting instruction form. Each beneficial owner of Pioneer common stock should refer to the voting instruction form received to see what options are available and how to use them. Pioneer stockholders who hold their shares of Pioneer common stock beneficially and wish to vote virtually at the Pioneer special meeting may do so by attending the special meeting, entering his, her or its unique 16-digit control number and voting their shares electronically; however attendance at the virtual Pioneer special meeting will not, in and of itself, constitute a vote or a revocation of a prior proxy.

Proxies and Revocation

Pioneer stockholders of record may revoke their proxies at any time before their shares of Pioneer common stock are voted at the Pioneer special meeting in any of the following ways:

delivering written notice of revocation of the proxy to Pioneer’s corporate secretary at Pioneer’s principal executive offices at 777 Hidden Ridge, Irving, Texas 75038, by no later than [    :    ] a.m. Central Time on [                ], 2021;

delivering another proxy with a later date to Pioneer’s corporate secretary at Pioneer’s principal executive offices at 777 Hidden Ridge, Irving, Texas 75038, by no later than [    :    ] a.m. Central Time on [                ], 2021 (in which case only the later-dated proxy is counted and the earlier proxy is revoked);

submitting another proxy again via the internet or by telephone at a later date, by no later than [    :    ] a.m. Central Time on [                ], 2021 (in which case only the later-dated proxy is counted and the earlier proxy is revoked); or

attending the Pioneer special meeting virtually, using his, her or its unique 16-digit control number and voting their shares online during the meeting; attendance at the virtual Pioneer special meeting will not, in and of itself, revoke a valid proxy that was previously delivered unless you give written notice of revocation to the Pioneer corporate secretary before the proxy is exercised or unless you vote your shares online during the Pioneer special meeting.

If a Pioneer stockholder holds shares through a bank, broker or other nominee, such stockholder may change or revoke his, her or its voting instructions before the Pioneer special meeting by providing instructions again through the means specified on his, her or its voting instruction form (with most having the option to do so by internet, telephone or mail), which must be received before [    :    ] a.m. Central Time on [                ], 2021. Alternatively, a Pioneer stockholder may also revoke their proxy by attending the Pioneer special meeting virtually, using his, her or its unique 16-digit control number and voting his, her or its shares online during the meeting.

Solicitation of Proxies

Pioneer will pay for the proxy solicitation costs related to the Pioneer special meeting. In addition to sending and making available these materials, some of Pioneer’s directors, officers and other employees may solicit proxies by contacting Pioneer stockholders by telephone, by mail, by e-mail or online. Pioneer stockholders may also be solicited by, among others, news releases issued by Pioneer and/or Parsley, postings on Pioneer’s or Parsley’s websites and social media accounts and advertisements in periodicals. None of Pioneer’s directors, officers or employees will receive any extra compensation for their solicitation services. Pioneer has also retained D.F. King & Co., Inc. as its proxy solicitor to assist in the solicitation of proxies. For these proxy solicitation services, D.F. King & Co., Inc. will receive an estimated fee of approximately $20,000, plus reasonable out-of-pocket expenses and fees for any additional services. Pioneer will also reimburse banks, brokers, and other nominees for their expenses in sending proxy solicitation materials to the beneficial owners of shares of Pioneer common stock and obtaining their proxies.

Other Matters

At this time, Pioneer knows of no other matters to be submitted at the Pioneer special meeting.

Questions and Additional Information

Pioneer stockholders may contact Pioneer’s proxy solicitor with any questions about the Pioneer stock issuance proposal or how to vote or to request additional copies of any materials at:

D.F. King & Co., Inc.

48 Wall Street, 22nd Floor

New York, NY 10005

Banks and Brokers Call Collect: (212) 269-5550

All Others Call Toll-Free: (800) 859-8509

Email: pxd@dfking.com

THE PIONEER STOCK ISSUANCE PROPOSAL

This joint proxy statement/prospectus is being furnished to you as a stockholder of Pioneer as part of the solicitation of proxies by the Pioneer board for use at the Pioneer special meeting to consider and vote upon a proposal to approve the issuance of shares of Pioneer common stock in the mergers and other shares of Pioneer common stock reserved for issuance in connection with the mergers, in each case pursuant to the terms of the merger agreement, which is attached as Annex A to this joint proxy statement/prospectus. Under the rules of the NYSE, a company listed on the NYSE is required to obtain stockholder approval prior to the issuance of common stock in any transaction or series of related transactions if the number of shares of common stock to be issued is equal to or in excess of 20% of the number of shares of common stock outstanding before the issuance of the common stock. If the mergers are completed, it is currently estimated that Pioneer will issue approximately 52 million shares of Pioneer common stock in connection with the mergers, which will exceed 20% of the shares of Pioneer common stock outstanding before such issuance and for this reason Pioneer must obtain the approval of Pioneer stockholders for that issuance.

In the event the Pioneer stock issuance proposal is approved by the Pioneer stockholders, but the merger agreement is terminated (without the mergers being completed) prior to the issuance of shares of Pioneer common stock pursuant to the merger agreement, Pioneer will not issue any shares of Pioneer common stock as a result of the approval of the Pioneer stock issuance proposal.

The Pioneer board has unanimously determined that the mergers and the other transactions contemplated by the merger agreement are in the best interests of, and are advisable to, Pioneer and the Pioneer stockholders, approved, adopted and declared advisable the merger agreement and the transactions contemplated thereby, and directed that the stock issuance be submitted to Pioneer stockholders for approval.

IF YOU ARE A PIONEER STOCKHOLDER, THE PIONEER BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT YOU VOTE “FOR” THE PIONEER STOCK ISSUANCE PROPOSAL.

PARSLEY SPECIAL MEETING

General

This joint proxy statement/prospectus is being provided to Parsley stockholders as part of a solicitation of proxies by the Parsley board for use at the Parsley special meeting and at any adjournments or postponements of such special meeting. This joint proxy statement/prospectus provides Parsley stockholders with important information about the Parsley special meeting and should be read carefully in its entirety.

Date, Time and Place of the Parsley Special Meeting

The Parsley special meeting will be a virtual meeting conducted exclusively via live webcast online at www.virtualshareholdermeeting.com/PE21SM starting at [    :    ] a.m. Central Time (with log-in beginning at [    :    ] a.m. Central Time) on [                ], 2021. Parsley stockholders will be able to attend the Parsley special meeting online and vote shares electronically at the meeting by going to www.virtualshareholdermeeting.com/PE21SM and entering the 16-digit control number included on the proxy card or voting instruction form you received. Because the Parsley special meeting is completely virtual and being conducted via live webcast, stockholders will not be able to attend the meeting in person.

Purposes of the Parsley Special Meeting

The Parsley special meeting is being held to consider and vote on the following proposals:

Parsley Merger Proposal: To approve and adopt the merger agreement, a copy of which is attached as Annex A to this joint proxy statement/prospectus, and the transactions contemplated thereby (including the integrated mergers), pursuant to which, among other things, upon consummation of the mergers (i) each eligible share of Parsley Class A common stock will be converted automatically into the right to receive a number of shares of Pioneer common stock equal to the exchange ratio, with cash paid in lieu of any fractional shares of Pioneer common stock, if any, (ii) each eligible Parsley LLC unit will be converted into the right to receive a number of shares of Pioneer common stock equal to the exchange ratio, with cash paid in lieu of any fractional shares of Pioneer common stock, if any, and (iii) each share of Parsley Class B common stock will automatically be cancelled for no additional consideration.

Parsley Compensation Proposal: To approve, on a non-binding advisory basis, the compensation that may be paid or become payable to Parsley’s NEOs that is based on or otherwise relates to the mergers, discussed in the section titled “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers”.

Recommendation of the Parsley Board

The Parsley board unanimously recommends that Parsley stockholders vote:

FOR” the Parsley merger proposal; and

FOR” the Parsley compensation proposal.

This joint proxy statement/prospectus contains important information regarding these proposals and factors that Parsley stockholders should consider when deciding how to cast their votes. Parsley stockholders are encouraged to read the entire document carefully, including the annexes to and documents incorporated by reference into this joint proxy statement/prospectus, for more detailed information regarding the merger agreement and the mergers.

The Parsley Compensation Proposal

In considering the recommendations of the Parsley board, Parsley stockholders should be aware that some of Parsley’s directors and executive officers have interests that are different from, or in addition to, the interests

of Parsley stockholders more generally. For additional information, please see “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers.”

Section 14A of the Exchange Act, which was enacted as part of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, requires that Parsley provide its stockholders with the opportunity to vote to approve, on a non-binding advisory basis, the compensation that may be paid or become payable to Parsley’s NEOs that is based on or otherwise relates to the mergers, as disclosed in this joint proxy statement/prospectus, including the compensation table and the related narrative NEO compensation disclosures set forth in “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers.” This vote is commonly referred to as a “say on golden parachute” vote. Accordingly, Parsley stockholders are being provided with the opportunity to cast an advisory (i.e.,non-binding) vote on those change of control payments.

Parsley stockholders should note that the Parsley compensation proposal is merely an advisory vote that will not be binding on Parsley, Pioneer or their respective boards of directors. Further, the underlying plans and arrangements are contractual in nature and not, by their terms, subject to stockholder approval. Accordingly, regardless of the outcome of the advisory vote, if the mergers are consummated, the eligibility of Parsley’s NEOs for such payments and benefits will not be affected by the advisory vote.

The vote on the Parsley compensation proposal is a vote separate and apart from the vote on the Parsley merger proposal. Accordingly, a Parsley stockholder may vote to approve one proposal and not the other. Because the vote on the Parsley compensation proposal is advisory in nature only, it will not be binding on Parsley or Pioneer, and the approval of the Parsley compensation proposal is not a condition to the completion of the mergers.

Voting by Directors and Executive Officers

On the Parsley record date, Parsley directors and executive officers, and their affiliates, as a group, beneficially owned and were entitled to vote [                ] shares of Parsley common stock, or approximately [    ]% of the issued and outstanding shares of Parsley common stock. Although none of them has entered into any agreement obligating them to do so as a director or executive officer of Parsley (other than Mr. Bryan Sheffield, Parsley’s Executive Chairman and Chairman of the Parsley board, pursuant to the Sheffield voting agreement and Mr. S. Wil VanLoh, Jr., who may be deemed to share voting and dispositive power over the Quantum voting agreement shares, pursuant to the Quantum voting agreement), Parsley currently expects that all of its directors and executive officers will vote their shares “FOR” the Parsley merger proposal and “FOR” the Parsley compensation proposal.

Voting and Support Agreement with Quantum

In connection with the execution of the merger agreement, Quantum entered into the Quantum voting agreement with respect to the Quantum voting agreement shares. As of the Parsley record date, Quantum holds and is entitled to vote in the aggregate approximately [__]% of the combined voting power of the issued and outstanding shares of Parsley common stock entitled to vote at the Parsley special meeting.

Pursuant to the Quantum voting agreement, Quantum has agreed to vote all of the Quantum voting agreement shares (i) in favor of the adoption of the merger agreement and the approval of any other matters necessary for consummation of the transactions contemplated by the merger agreement, including the mergers, subject to certain exceptions, and (ii) against specified actions that could reasonably be expected to impede, interfere with, delay, discourage, postpone or adversely affect the mergers or any other transaction contemplated by the merger agreement, including specified actions that contemplate alternative transactions. Under the Quantum voting agreement, Quantum has granted to Pioneer an irrevocable proxy to vote the Quantum voting agreement shares as provided above. Subject to certain exceptions, the Quantum voting agreement restricts Quantum from transferring Parsley common stock until the earlier of the termination of the Quantum voting agreement and the effective time.

The Quantum voting agreement, including the irrevocable proxy granted thereunder, will terminate upon the date the merger agreement is validly terminated in accordance with its terms. The Quantum voting agreement is attached to this joint proxy statement/prospectus as Annex G.

Voting and Support Agreement with Bryan Sheffield

In connection with the execution of the merger agreement, Mr. Sheffield entered into the Sheffield voting agreement with respect to the Sheffield voting agreement shares. As of the Parsley record date, Mr. Sheffield holds and is entitled to vote in the aggregate approximately [__]% of the combined voting power of the issued and outstanding shares of Parsley common stock entitled to vote at the Parsley special meeting.

Pursuant to the Sheffield voting agreement, Mr. Sheffield has agreed to vote all of the Sheffield voting agreement shares (i) in favor of the adoption of the merger agreement and the approval of any other matters necessary for consummation of the transactions contemplated by the merger agreement, including the mergers, subject to certain exceptions, and (ii) against specified actions that could reasonably be expected to impede, interfere with, delay, discourage, postpone or adversely affect the mergers or any other transaction contemplated by the merger agreement, including specified actions that contemplate alternative transactions. Under the Sheffield voting agreement, Mr. Sheffield has granted to Pioneer an irrevocable proxy to vote the Sheffield voting agreement shares as provided above. Subject to certain exceptions, the Sheffield voting agreement restricts Mr. Sheffield from transferring Parsley common stock or Parsley LLC units until the earlier of the termination of the Sheffield voting agreement and the effective time.

In addition, the Sheffield voting agreement contains a lock-up agreement providing that Mr. Sheffield may not, without Pioneer’s prior written consent, subject to limited exceptions, offer, sell, transfer or otherwise dispose of more than 15% of the shares of Pioneer common stock issued to Mr. Sheffield pursuant to the terms of the merger agreement for a period of 90 days following the closing date, or more than 30% of such shares for a period of 180 days following the closing date.

The Sheffield voting agreement, including the irrevocable proxy granted thereunder, will terminate upon the date the merger agreement is validly terminated in accordance with its terms. The Sheffield voting agreement is attached to this joint proxy statement/prospectus as Annex H.

Attendance at the Parsley Special Meeting

Only Parsley stockholders of record on the Parsley record date, beneficial owners of Parsley common stock on the Parsley record date and holders of valid proxies for the Parsley special meeting may attend the virtual Parsley special meeting. Participating stockholders who log-on to the meeting using his, her or its unique 16-digit control number will also be able to examine the stockholder list during the Parsley special meeting by following the instructions provided on the meeting website.

Submitting Questions for the Virtual Parsley Special Meeting

Parsley stockholders attending the virtual meeting will be in a listen-only mode and will not be able to speak during the webcast. However, in order to maintain the interactive nature of the virtual meeting, stockholders are able submit questions before the meeting at www.proxyvote.com.

Limitations on Submitting Questions for the Virtual Parsley Special Meeting

Parsley will answer questions during the Parsley special meeting that are relevant to meeting matters, comply with the meeting rules of conduct and have been submitted prior to the start of the Parsley special meeting, subject to time constraints. However, Parsley reserves the right to exclude questions that are not pertinent to meeting matters or to edit profanity or other inappropriate language. Each stockholder is limited to a

total of one question that must be related to the business of the Parsley special meeting. Each question should cover only one topic and be as succinct as possible. If Parsley receives substantially similar questions, Parsley will group such questions together and provide a single response to avoid repetition. The questions of all Parsley stockholders are welcome. However, the purpose of the Parsley special meeting must be observed and questions that are not directly related to the business of Parsley or are not otherwise in good taste, related to personal grievances or otherwise inappropriate (as determined by the chairman of the meeting) will not be answered.

Record Date

The Parsley board has fixed the close of business on [                ], 2020 as the Parsley record date for the determination of the Parsley stockholders entitled to receive notice of, and to vote at, the Parsley special meeting. The Parsley stockholders of record on the Parsley record date are the only Parsley stockholders that are entitled to receive notice of, and to vote at, the Parsley special meeting or any adjournments or postponements of the Parsley special meeting.

Outstanding Shares as of Record Date and Voting Rights of Parsley Stockholders

On the Parsley record date, there were [                ] shares of Parsley Class A common stock and [                ] shares of Parsley Class B common stock issued and outstanding, held by [                ] and [                ] holders of record, respectively. Each issued and outstanding share of Parsley common stock entitles its holder of record to one vote on each matter to be considered at the Parsley special meeting. Parsley stockholders are entitled to vote on each proposal presented.

Stockholder List

A complete list of registered Parsley stockholders entitled to vote at the Parsley special meeting will be available for inspection at Parsley’s principal executive offices at 303 Colorado Street, Austin, Texas 78701, during ordinary business hours, for a period of no less than ten days before the Parsley special meeting and will be available during the virtual Parsley special meeting at www.virtualshareholdermeeting.com/PE21SM. If a Parsley stockholder wants to inspect the stockholder list, such stockholder should call Parsley’s Legal department at (512) 220-7102 to schedule an appointment or request access.

Quorum; Abstentions and Broker Non-Votes

In order for business to be conducted at the Parsley special meeting, a quorum must be present. A quorum at the Parsley special meeting requires the presence of the holders of a majority of the total issued and outstanding shares of Parsley common stock entitled to vote, present virtually or represented by proxy, at the Parsley special meeting. An abstention occurs when a stockholder is present for purposes of a quorum by virtually attending the Parsley special meeting and either does not vote or submits a ballot marked “abstain”. An abstention also occurs when a stockholder does not attend the meeting virtually and instead submits a proxy with an “abstain” instruction. Abstentions will be counted for purposes of determining whether there is a quorum at the Parsley special meeting. Because it is expected that all of the matters to be voted on at the Parsley special meeting will be non-routine under NYSE rules, brokers will not have discretionary authority to vote on any such proposal; therefore, if you do not provide voting instructions to your broker, bank or other nominee, your shares will not count towards determining whether a quorum is present and your shares will not be voted on the Parsley merger proposal or the Parsley compensation proposal.

Adjournment

If a quorum is not present or represented or if there are not sufficient votes for the approval of the merger proposal, Parsley expects that the Parsley special meeting will be adjourned by the chairman of the Parsley special meeting to solicit additional proxies. In addition, the holders of a majority of the shares represented at the

Parsley special meeting may adjourn the meeting at any time and for any reason, whether or not a quorum is present. No notice of the reconvened meeting is required to be given if the date, time and place (including the means of remote communication) are announced at the Parsley special meeting unless the adjournment is for more than 30 days. At any reconvened Parsley special meeting at which a quorum is present, (i) any business may be transacted that may have been transacted at the Parsley special meeting had a quorum been present and (ii) all proxies will be voted in the same manner as the manner in which such proxies would have been voted at the original convening of the Parsley special meeting, except for any proxies that have been validly revoked or withdrawn prior to the subsequent meeting.

Vote Required

The votes required for each proposal are as follows:

Parsley Merger Proposal: The affirmative vote of the holders of a majority of the outstanding shares of Parsley common stock entitled to vote on the proposal is required to approve the Parsley merger proposal. Abstentions or failures to vote, either virtually or by proxy, at the Parsley special meeting will have the same effect as a vote “against” the Parsley merger proposal. Because the Parsley merger proposal is non-routine under NYSE rules, banks, brokers, and other nominees do not have discretionary authority to vote on the Parsley merger proposal and will not be able to vote on the Parsley merger proposal absent instructions from the beneficial owner. The failure of a beneficial owner to provide voting instructions to its bank, broker or other nominee will have the same effect as a vote “against” the Parsley merger proposal.

Parsley Compensation Proposal: The affirmative vote of the holders of a majority of the shares of Parsley common stock present virtually during the Parsley special meeting or represented by proxy at the Parsley special meeting and entitled to vote on the proposal is required to approve the Parsley compensation proposal. Abstentions are considered shares of Parsley common stock present and entitled to vote and will have the same effect as a vote “against” the Parsley compensation proposal. Failures to submit a proxy or failures to attend and vote, either virtually or by proxy, at the Parsley special meeting will have no effect on the outcome of the Parsley compensation proposal. Because the Parsley compensation proposal is non-routine under NYSE rules, banks, brokers, and other nominees do not have discretionary authority to vote on the Parsley compensation proposal and will not be able to vote on the Parsley compensation proposal absent instructions from the beneficial owner. The failure of a beneficial owner to provide voting instructions to its bank, broker or other nominee will have no effect on the outcome of the Parsley compensation proposal.

How to Vote

Parsley stockholders of record and beneficial owners of Parsley common stock on the Parsley record date may vote their shares of Parsley common stock by submitting a proxy or may vote virtually during the Parsley special meeting by following the instructions provided on the enclosed proxy card or voting instruction form received. Parsley recommends that Parsley stockholders entitled to vote submit a proxy prior to the Parsley special meeting even if they plan to attend the virtual Parsley special meeting.

Parsley stockholders are encouraged to submit a proxy promptly. Each valid proxy received in time will be voted at the Parsley special meeting according to the choice specified, if any. Executed but uninstructed proxies (i.e., proxies that are properly signed, dated and returned but are not marked to tell the proxies how to vote) will be voted in accordance with the recommendations of the Parsley board.

Record Holders

Parsley stockholders of record may vote in one of the following ways:

Internet: Parsley stockholders of record may submit their proxy over the internet at www.proxyvote.com. Internet voting is available 24 hours a day and will be accessible until

11:59 p.m., Eastern Time (10:59 p.m., Central Time), on [                ], 2021. Stockholders will be given an opportunity to confirm that their voting instructions have been properly recorded. Parsley stockholders who submit a proxy this way need not send in their proxy card.

Telephone: Parsley stockholders of record may submit their proxy by calling 1-800-690-6903. Telephone voting is available 24 hours a day and will be accessible until 11:59 p.m., Eastern Time (10:59 p.m., Central Time), on [                ], 2021. Easy-to-follow voice prompts will guide stockholders through the voting and allow them to confirm that their instructions have been properly recorded. Parsley stockholders who submit a proxy this way need not send in their proxy card.

Mail: Parsley stockholders of record may submit their proxy by properly completing, signing, dating and mailing their proxy card or voting instruction form in the self-addressed, stamped envelope (if mailed in the United States) included with this joint proxy statement/prospectus. Parsley stockholders who vote this way should mail the proxy card early enough so that it is received prior to the closing of the polls at the Parsley special meeting.

Online During the Virtual Meeting: Parsley stockholders of record may attend the virtual Parsley special meeting by entering his, her or its unique 16-digit control number and vote online; attendance at the virtual Parsley special meeting will not, however, in and of itself constitute a vote or a revocation of a prior proxy.

Beneficial Owners

Parsley stockholders who hold their shares of Parsley common stock beneficially in “street name” and wish to submit a proxy must provide instructions to the bank, broker or other nominee that holds their shares of record as to how to vote their shares with respect to the Parsley merger proposal and the Parsley compensation proposal. Most beneficial owners will have a choice of voting before the Parsley special meeting by proxy over the internet, by telephone or by using a voting instruction form. Each beneficial owner of Parsley common stock should refer to the voting instruction form received to see what options are available and how to use them. Parsley stockholders who hold their shares of Parsley common stock beneficially and wish to vote virtually at the Parsley special meeting may do so by attending the special meeting, entering his, her or its unique 16-digit control number and voting their shares electronically; however attendance at the virtual Parsley special meeting will not, in and of itself, constitute a vote or a revocation of a prior proxy.

Proxies and Revocation

Parsley stockholders of record may revoke their proxies at any time before their shares of Parsley common stock are voted at the Parsley special meeting in any of the following ways:

delivering written notice of revocation of the proxy to Parsley’s corporate secretary at Parsley’s principal executive offices at 303 Colorado Street, Austin, Texas 78701, Attention: Corporate Secretary, by no later than [    :    ] a.m. Central Time on [                ], 2021;

delivering another proxy with a later date to Parsley’s corporate secretary at Parsley’s principal executive offices at 303 Colorado Street, Austin, Texas 78701, Attention: Corporate Secretary, by no later than [    :    ] a.m. Central Time on [                ], 2021 (in which case only the later-dated proxy is counted and the earlier proxy is revoked);

submitting another proxy via the internet or by telephone at a later date, by no later than [    :    ] a.m. Central Time on [                ], 2021 (in which case only the later-dated proxy is counted and the earlier proxy is revoked); or

attending the Parsley special meeting virtually, using his, her or its unique 16-digit control number and voting their shares online during the meeting; attendance at the virtual Parsley special meeting will not,

in and of itself, revoke a valid proxy that was previously delivered unless you give written notice of revocation to the Parsley corporate secretary before the proxy is exercised or unless you vote your shares online during the Parsley special meeting.

If a Parsley stockholder holds shares through a bank, broker or other nominee, such stockholder may change or revoke his, her or its voting instructions before the Parsley special meeting by providing instructions again through the means specified on his, her or its voting instruction form (with most having the option to do so by internet, telephone or mail), which must be received before [    :    ] a.m. Central Time on [                ], 2021. Alternatively, a Parsley stockholder may also revoke their proxy by attending the Parsley special meeting virtually, using his, her or its unique 16-digit control number and voting his, her or its shares online during the meeting.

Solicitation of Proxies

Parsley will pay for the proxy solicitation costs related to the Parsley special meeting. In addition to sending and making available these materials, some of Parsley’s directors, officers and other employees may solicit proxies by contacting Parsley stockholders by telephone, by mail, by e-mail or online. Parsley stockholders may also be solicited by, among others, news releases issued by Parsley and/or Pioneer, postings on Parsley’s or Pioneer’s websites and social media accounts and advertisements in periodicals. None of Parsley’s directors, officers or employees will receive any extra compensation for their solicitation services. Parsley has also retained Mackenzie Partners, Inc. as its proxy solicitor to assist in the solicitation of proxies. For these proxy solicitation services, Mackenzie Partners, Inc. will receive an estimated fee of approximately $25,000, plus reasonable out-of-pocket expenses and fees for any additional services. Parsley will also reimburse banks, brokers, and other nominees for their expenses in sending proxy solicitation materials to the beneficial owners of shares of Parsley common stock and obtaining their proxies.

Other Matters

At this time, Parsley knows of no other matters to be submitted at the Parsley special meeting.

Questions and Additional Information

Parsley stockholders may contact Parsley’s proxy solicitor with any questions about the Parsley merger proposal, the Parsley compensation proposal or how to vote or to request additional copies of any materials at:

Mackenzie Partners, Inc.

1407 Broadway, 27th Floor

New York, NY 10018

Banks and Brokers Call Collect: (212) 929-5500

All Others Call Toll-Free: (800) 322-2885

Email: proxy@mackenziepartners.com

THE PARSLEY MERGER PROPOSAL

The Parsley board, after due and careful discussion and consideration, unanimously declared that the merger agreement and the transactions contemplated thereby (including the integrated mergers) were fair to, and in the best interests of, Parsley, the Parsley stockholders and the Parsley LLC unitholders and approved and declared advisable the merger agreement and the transactions contemplated thereby (including the integrated mergers).

The Parsley board accordingly unanimously recommends that Parsley stockholders vote “FOR” the proposal to approve and adopt the merger agreement and the transactions contemplated thereby (including the integrated mergers), as disclosed in this joint proxy statement/prospectus, particularly the related narrative disclosures in the sections of this joint proxy statement/prospectus titled “The Mergers” and “The Merger Agreement,” and as attached as Annex A to this joint proxy statement/prospectus.

The mergers cannot be completed without the affirmative vote of the holders of a majority of the outstanding shares of Parsley common stock entitled to vote thereon at the Parsley special meeting. Accordingly, a Parsley stockholder’s abstention from voting, a broker non-vote or the failure of a Parsley stockholder to attend the Parsley special meeting and vote will have the same effect as a vote “against” the Parsley merger proposal.

IF YOU ARE A PARSLEY STOCKHOLDER, THE PARSLEY BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT YOU VOTE “FOR” THE PARSLEY MERGER PROPOSAL.

THE PARSLEY COMPENSATION PROPOSAL

Pursuant to Section 14A of the Exchange Act and Rule 14a-21(c) thereunder, Parsley is seeking non-binding advisory stockholder approval of the compensation of Parsley’s NEOs that is based on or otherwise relates to the mergers, as disclosed in the section of this joint proxy statement/prospectus titled “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers—Quantification of Potential Payments and Benefits to Parsley’s Named Executive Officers.” The proposal gives Parsley stockholders the opportunity to express their views on the merger-related compensation of Parsley’s NEOs.

Accordingly, the Parsley board unanimously recommends that Parsley stockholders vote “FOR” the adoption of the following resolution, on a non-binding, advisory basis:

“RESOLVED, that Parsley stockholders approve, on a non-binding advisory basis, the compensation that may be paid or become payable to Parsley’s NEOs that is based on or otherwise relates to the mergers, as disclosed pursuant to Item 402(t) of Regulation S-K under the heading “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers” (which disclosure includes the compensation table and related narrative NEO compensation disclosures required pursuant to Item 402(t) of Regulation S-K).”

The vote on the Parsley compensation proposal is a vote separate and apart from the vote on the Parsley merger proposal. Accordingly, Parsley stockholders may vote to approve the Parsley merger proposal and vote not to approve the Parsley compensation proposal, and vice versa. If the mergers are completed, the merger-related compensation may be paid to Parsley’s NEOs to the extent payable in accordance with the terms of the compensation agreements and arrangements even if the Parsley stockholders fail to approve the Parsley compensation proposal.

Assuming a quorum is present at the Parsley special meeting, approval of the Parsley compensation proposal requires the affirmative vote of the holders of a majority of the shares of Parsley common stock present virtually during the Parsley special meeting or represented by proxy at the Parsley special meeting and entitled to vote thereon. Accordingly, a Parsley stockholder’s abstention from voting will have the same effect as a vote “against” the Parsley compensation proposal, while a broker non-vote or the failure of a Parsley stockholder to attend the Parsley special meeting and vote will not count as votes cast and will have no effect on the outcome of the Parsley compensation proposal.

IF YOU ARE A PARSLEY STOCKHOLDER, THE PARSLEY BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT YOU VOTE “FOR” THE PARSLEY COMPENSATION PROPOSAL.

THE MERGERS

This section of the joint proxy statement/prospectus describes the material aspects of the proposed mergers. This section may not contain all of the information that is important to you. You should carefully read this entire proxy statement/prospectus and the documents incorporated by reference into this joint proxy statement/prospectus, including the full text of the merger agreement, a copy of which is attached to this joint proxy statement/prospectus as Annex A, for a more complete understanding of the proposed mergers and the transactions related thereto. In addition, important business and financial information about each of Pioneer and Parsley is included in or incorporated by reference into this joint proxy statement/prospectus. Please see “Where You Can Find More Information.”

Background of the Mergers

The Parsley board, together with Parsley senior management, regularly reviews and assesses Parsley’s performance, strategy, financial position and leverage, opportunities and risks in light of current business and economic conditions, and developments in the oil and gas exploration and production sector, in each case across a range of scenarios and potential future industry developments.

The Pioneer board and Pioneer senior management regularly review and evaluate Pioneer’s long-term strategic plans and goals, opportunities, overall industry trends and Pioneer’s operations, with a focus on growing free cash flow and returning capital to stockholders. In connection with such ongoing reviews and evaluations, Pioneer senior management engages in discussions with representatives of other exploration and production companies from time to time. In connection with these activities, the Pioneer board meets periodically in the ordinary course of business to receive updates from Pioneer senior management on such discussions and to consider and evaluate potential strategic alternatives available to Pioneer, including merger and acquisition transactions. Over the past several years, Pioneer has not executed, and has not been requested to execute, any confidentiality or similar agreement or exchanged confidential information with respect to a sale of Pioneer, nor has Pioneer received any proposals containing economic terms associated with any such sale.

On January 10, 2020, through a series of transactions, Parsley acquired Jagged Peak Energy Inc., a Delaware corporation that previously traded on the NYSE under the symbol “JAG” (“Jagged Peak”), pursuant to the Agreement and Plan of Merger, dated as of October 14, 2019, among Parsley, Jackal Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parsley, and Jagged Peak (the “Jagged Peak acquisition”). Upon closing of the Jagged Peak acquisition, the Parsley board was increased by two members, and each of James J. Kleckner and S. Wil VanLoh, Jr. (Founder and Chief Executive Officer of Quantum Energy Partners) was appointed to the Parsley board. Following the completion of the Jagged Peak acquisition, Quantum became Parsley’s largest stockholder.

In connection with its continued regular reviews of outlook and strategy, the Parsley board, together with Parsley senior management, regularly discusses likely key drivers of stockholder value creation and positive stock price performance for Parsley as a publicly-traded company operating in a sector facing increasingly negative investor sentiment, due to, among other things, sector financial underperformance, commodity price volatility and the impact of increased investor focus on environmental, social and governance matters. The Parsley board noted in these discussions that investors have increasingly favored companies with large market capitalizations that have the ability to maintain strong balance sheets across commodity price cycles, generate free cash flow and return capital to stockholders, either in the form of dividends or share repurchases.

Investors’ focus on scale, strong balance sheets and the ability of issuers to return capital to stockholders was further accelerated and heightened in March 2020, when the global response to COVID-19, together with periods of increased production from foreign oil producers (most notably Saudi Arabia and Russia), resulted in steep declines in the prices of oil and NGL and severe temporary storage shortages, negatively impacting oil and gas producers located in the United States, including Parsley. In response to these events and an increased focus

on risk management strategies, Parsley announced, in a series of press releases on March 13, 2020 and March 18, 2020, among other things, a restructuring of 2020 and 2021 oil swaps to provide incremental downside protection in the event of sustained low commodity prices during those years, a 40% reduction in its capital budget for 2020 and temporary 50% reductions in cash compensation for executive officers. These actions were designed to bolster Parsley’s ability to generate free cash flow, maintain its dividend and avoid incurring additional leverage.

With this backdrop, on April 21, 2020, the Parsley board at a regularly scheduled board meeting met with representatives of Parsley senior management to discuss the ongoing pandemic and market disruptions, as well as Parsley’s responsive actions to date, and Parsley’s performance, strategy, financial position and opportunities in the current market environment, including the exploration of opportunities to combine with a potential merger partner to achieve benefits of scale and efficiency. In addition, the Parsley board and Parsley senior management discussed other options that could be available to raise additional capital through conventional and alternative financing transactions, asset sales or asset monetizations. In anticipation of discussing this agenda item with the Parsley board, Parsley senior management requested that Credit Suisse review then-current market conditions, investor sentiment, historical industry trading multiples and certain considerations that the Parsley board may want to assess when considering a strategic combination, including an overview of possible counterparties. As part of this discussion, the Parsley board discussed its perspective on strategic objectives and key investment metrics that were likely to enhance investor interest in the industry in general and Parsley in particular. The Parsley board identified high quality assets in a basin that occupied a lower position on the global cost curve, low break-even inventory, the ability to generate sustainable free cash flow through the commodity price cycle with modest production growth, low leverage, a market capitalization greater than $10 billion, a low cost of capital and a strong operational track record as characteristics that would be attractive to investors. The Parsley board noted that Parsley possessed a number of these characteristics and discussed Parsley’s ability, and the timeline for Parsley, to achieve others that it did not currently possess on a stand-alone basis, such as an industry leading cost of capital, a lower debt to EBITDA leverage ratio and a market capitalization of greater than $10 billion. The Parsley board also discussed the divergence in trading multiples for companies that possessed these characteristics versus those that did not.

The Parsley board noted that Parsley senior management’s actions in response to the price war and COVID-19 had positioned Parsley to withstand an extended downturn and generate free cash flow despite challenging market conditions, but acknowledged that significant downside risk remained. The Parsley board discussed with Parsley senior management the potential benefits and drawbacks of pursuing a strategic combination, including the potential benefits to Parsley’s stockholders if Parsley were to combine in an all-stock transaction to form a company with a lower cost of capital, lower leverage and larger market capitalization than Parsley on a stand-alone basis. The Parsley board discussed with management a number of possible counterparties for a strategic combination and the respective trade-offs associated with each of these counterparties, with the Parsley board generally viewing high quality assets and inventory, balance sheet strength/access to capital and geographic overlap as important characteristics of a potential merger counterparty. The Parsley board requested that Parsley senior management continue to evaluate the possibility of a strategic combination and identify potential counterparties for further discussion after Parsley’s annual meeting of stockholders on May 21, 2020. In addition, the Parsley board requested that Parsley senior management evaluate the potential benefits of alternative financing transactions, including the monetization of Parsley’s fresh water and produced water assets.

In the weeks following the April 21, 2020 board meeting, Parsley senior management contacted its outside counsel at Vinson & Elkins regarding Vinson & Elkins’ representation of Parsley with respect to its exploration of strategic alternatives.

Over the course of the next several weeks, senior management of Parsley continued to evaluate the possibility of a strategic combination and, after considering the input from the Parsley board at the April 21, 2020 meeting, and subsequent discussions with Mr. Wil VanLoh, Jr., Mr. Bryan Sheffield and Mr. A.R. Alameddine, Parsley’s lead director, determined to recommend to the Parsley board that Parsley contact six potentially

attractive merger counterparties (all of which satisfied some or all of the criteria noted above): Company A and Company B, each of which is an integrated major oil and gas company, Company C, Company D and Company E, each of which is a large, independent oil and gas company, and Pioneer. In a series of conversations with individual Parsley board members, Parsley senior management confirmed the support of the Parsley board to ascertain the potential level of interest of each counterparty in a potential combination prior to the May 21, 2020 annual meeting of Parsley stockholders.

Also during late April and early May, Parsley senior management, acting at the direction of the Parsley board given at the April 21, 2020 meeting, re-engaged with Bank of Montreal to advise Parsley on the monetization of a minority interest in Parsley’s fresh water and produced water assets, including a review of potential counterparties and financial analysis of potential transaction terms, pursuant to an engagement letter originally entered into by Parsley and Bank of Montreal on July 24, 2019.

On May 15, 2020, Matt Gallagher, the President and Chief Executive Officer of Parsley, contacted a representative of Company C and Mr. Scott Sheffield, President and Chief Executive Officer of Pioneer, to inquire as to whether either company would be interested in evaluating a combination with Parsley.

Later that week, Mr. Bryan Sheffield and Mr. Scott Sheffield discussed market conditions and industry consolidation in general. During the course of this general discussion, they discussed potential candidates for industry consolidation, including Company C, and the possibility of a three-party combination with Company C.

Mr. Scott Sheffield then discussed with Messrs. Dealy and Berg whether to contact Company C regarding a potential three-party combination with Parsley and Pioneer. Although not known to Parsley, from time to time over several years, representatives of Pioneer and Company C had discussed the possibility of a business combination, most recently at a series of meetings held between senior management of both companies between November 2019 and January 2020. Similarly, from time to time over several years, Parsley had evaluated the possibility of a combination with Company C.

On May 18, 2020, after indicating preliminary interest in exploring a combination with Parsley, Pioneer executed a mutual confidentiality agreement with Parsley. In addition, Messrs. Mark Berg, Executive Vice President, Corporate Operations, of Pioneer, and Rich Dealy, Executive Vice President and Chief Financial Officer of Pioneer, informed Mr. Gallagher that Mr. Scott Sheffield would not participate in any substantive negotiations of any potential combination with Parsley, given the fact that Mr. Bryan Sheffield, Mr. Scott Sheffield’s son, was the Executive Chairman of the Parsley board and the second largest stockholder of Parsley, owning approximately 7.8% of the company. Through the course of discussions on May 18 and May 19, 2020, and after receiving input from their respective legal advisors, Messrs. Gallagher, Berg and Dealy agreed that neither Mr. Scott Sheffield nor Mr. Bryan Sheffield would participate in any substantive discussions or negotiations between the companies related to a potential combination of their respective companies and that each company would direct its representatives to communicate with the other company accordingly.

Mr. Bryan Sheffield and Mr. Gallagher determined to share responsibilities for contacting the other potential merger counterparties identified by the Parsley board based on their existing relationships with representatives of each company. On May 19, 2020, Mr. Bryan Sheffield contacted representatives of each of Company B and Company D and Mr. Gallagher contacted a representative of Company A to discuss whether such companies may have interest in evaluating a strategic combination with Parsley. During these initial conversations, a representative of Company B indicated the company might be interested in an all-stock combination, but only one that was completed with no premium received by Parsley stockholders, and a representative of Company D also indicated that while they would evaluate a potential combination, any combination would also have to be at no premium. The representative of Company A indicated he would review the matter internally and follow up in a couple of weeks. Mr. Bryan Sheffield requested that the representatives of each of Company B and Company D communicate with Mr. Gallagher if they later determined to pursue a strategic combination.

Also, on May 19, 2020, the Chief Executive Officer of Company C requested an in-person meeting with Mr. Gallagher to further discuss a potential combination of Parsley and Company C.

On May 21, 2020, at a regularly scheduled meeting of the Pioneer board, Mr. Dealy and Mr. Christopher Paulsen, Vice President, Business Development, of Pioneer, presented on the potential combination between Pioneer and Parsley as an opportunity to acquire synergistic acreage and production in a transaction that would be highly accretive to cash flows, provide the combined company with a scale advantage relative to its peers and result in strong operational synergies due to, among other things, reduced facilities, capital and operating expenses. Pioneer senior management also outlined the procedural protections agreed to between Pioneer and Parsley (including that Mr. Scott Sheffield and Mr. Bryan Sheffield would not be involved in substantive discussions and negotiations between the companies) and confirmed that Mr. Scott Sheffield would serve only in an advisory capacity to Pioneer senior management in connection with the potential combination. The Pioneer board authorized Pioneer senior management (excluding Mr. Scott Sheffield) to continue working with Parsley to refine the financial analyses regarding the potential combination in advance of presenting any recommendation to proceed to the Pioneer board at a future meeting.

Also on May 21, 2020, the Parsley board convened a special board meeting following Parsley’s regularly scheduled annual meeting of stockholders. During such meeting, senior management of Parsley reviewed with the Parsley directors the company’s updated long-term financial forecasts, utilizing a variety of commodity price cases, and the Parsley board discussed the prospects of Parsley on a stand-alone basis, particularly given the consensus amongst the members of the Parsley board that there was a significant chance of an extended period of low commodity prices over the coming years. In addition, senior management of Parsley provided an update on its outreach to potential transaction counterparties, including advising the Parsley board of the initial outreach to Pioneer, Company A, Company B, Company C and Company D. Mr. VanLoh also reported to the Parsley board that, consistent with prior discussions, he intended to contact a representative of Company E to solicit interest in a potential strategic combination and direct Company E’s representatives to contact Mr. Gallagher for any follow-up discussions. Mr. Gallagher also provided the Parsley board with an update on the initial due diligence discussions with Pioneer, which were focused on potential synergies, and discussed with the Parsley board the procedural protections that Pioneer and Parsley had agreed to implement to limit the role of Mr. Scott Sheffield and Mr. Bryan Sheffield in substantive discussions and negotiations between the companies, given their familial relationship, and the Parsley board indicated its support for this approach.

Following the update on process to date, the Parsley board, together with Parsley senior management, discussed the potential benefits of a strategic combination compared to Parsley’s continued operation as a stand-alone company, as well as the likely benefits and drawbacks of a combination with each of the identified potential counterparties, and the likely willingness and ability of each potential counterparty to consummate a transaction. The Parsley board’s discussion was aided by certain information Credit Suisse had reviewed with Parsley management, including information covering the current mergers and acquisitions environment and an overview of several potential acquirers. The Parsley board discussed its views that some of the key benefits to be derived from a merger were consolidating into a larger company with a stronger balance sheet, lower cost of capital and enhanced ability to return capital to investors, while some of the key risks of a merger were transacting at a time of depressed equity values and the possible dilution of Parsley’s high quality, pure-play Permian acreage. Given these benefits and risks, the Parsley board generally agreed that the ideal combination would be structured as a stock-for-stock merger with another company with a significant Permian presence and strong balance sheet, in a transaction that would permit Parsley stockholders to benefit from ownership in a more attractive equity security and the synergies and growth of the pro forma company. The Parsley board also generally agreed that continuing to evaluate a potential combination was in the best interest of Parsley and its stockholders, given the identified challenges facing Parsley on a stand-alone basis. At the conclusion of the discussion, the Parsley board authorized senior management to continue discussions with the identified potential counterparties regarding a potential combination. In addition, the Parsley board requested that senior management of Parsley continue to work in parallel with the Bank of Montreal to identify opportunities to monetize a minority interest in Parsley’s water assets through a competitive bid process.

Following the meeting of the Parsley board on May 21, 2020, Mr. VanLoh contacted a representative of Company E to inquire if the company had an interest in evaluating a strategic combination with Parsley. The representative of Company E indicated that they would evaluate and respond within a week or so.

On May 28, 2020, Messrs. Gallagher and Roberts met with representatives of Company C to discuss a potential combination of Parsley and Company C. During these discussions, the representatives of Company C did not propose economic terms of a proposed combination but indicated that Company C would evaluate a potential combination and respond in a timely manner to Mr. Gallagher.

Also on May 28, 2020, Mr. Gallagher spoke to a representative of Company B to discuss a potential combination. During that discussion, the Company B representative indicated that Company B would be interested in pursuing a no-premium, all-stock combination and could move quickly towards a transaction on those terms. Following the discussion, Mr. Gallagher updated Mr. Alameddine.

On May 30, 2020, Mr. Gallagher contacted Mr. Scott Sheffield at Pioneer to advise him that Parsley had received an indication of interest from a third party (Company B) regarding a combination, and that if Parsley elected to move forward with the transaction, it would likely move very quickly. Mr. Scott Sheffield indicated that he would inform Messrs. Berg and Dealy of Mr. Gallagher’s message.

On June 1, 2020, Messrs. Berg and Dealy contacted Mr. Gallagher and advised him that, due to certain factors, including the significant macroeconomic uncertainty around oil demand and Parsley’s relatively high debt burden, and in light of the timeframe proposed, Pioneer was unwilling to pursue a combination with Parsley at that time.

Also on June 1, 2020, a representative of Company E contacted Mr. VanLoh and advised him that, after evaluating a potential combination with Parsley, Company E had determined that they were not interested in pursuing a potential transaction with Parsley.

Also during the week of June 1, 2020, representatives from Company C followed up with Mr. Gallagher to communicate that they had determined not to pursue a possible combination with Parsley at that time, but that they might be interested in pursuing a combination in 2021.

On June 5, 2020, Messrs. Gallagher and Roberts met with a representative of Company B. At that meeting, the Company B representative reaffirmed Company B’s interest in a no-premium, all-stock combination, and advised that Company B was not interested in participating in a formal marketing process through an investment bank, and therefore would like Parsley to sign an exclusivity agreement. Mr. Gallagher advised the Company B representative that he thought the Parsley board would be unlikely to grant exclusivity without some indication of a premium.

On June 6, 2020, Mr. Scott Sheffield discussed with Mr. Ken Thompson, Chairman of the Pioneer board, a potential three-party combination with Parsley and Company F, an independent oil and gas company.

On or around the same day, Mr. Bryan Sheffield and Mr. Scott Sheffield discussed market conditions and industry consolidation in general. During the course of the general discussion, they discussed potential candidates for industry consolidation such as Company G, a large, independent oil and gas company, and they discussed the possibility of a three-party combination with Company G. Although not known to each other, from time to time over several years, each of Pioneer and Parsley had evaluated the possibility of a combination with Company G and had independently discussed the possibility of such a combination with representatives of Company G.

On June 8, 2020, Messrs. Berg and Dealy contacted Mr. Gallagher and suggested that Parsley consider a three-party combination involving either Parsley, Pioneer and Company F or Parsley, Pioneer and Company G. Mr. Gallagher indicated that if Pioneer made a proposal of this nature, Mr. Gallagher would take such proposal to the Parsley board for consideration.

On June 9, 2020, a representative of Company A contacted Mr. Gallagher and informed him that, after evaluating a potential combination with Parsley, Company A would not make a proposal regarding a combination at that time.

On June 10, 2020, Mr. Bryan Sheffield contacted a representative of Company G to ascertain whether Company G had any interest in pursuing a strategic combination with Parsley.

On June 11, 2020, Mr. Scott Sheffield contacted a representative of Company F to discuss Company F’s potential interest in a three-party combination with Parsley and Pioneer. On the same day, a representative of Company B contacted Mr. Gallagher to further stress the importance of exclusivity to Company B and reaffirm Company B’s interest in a possible combination with Parsley on a no or low premium basis. Also on June 11, 2020, Mr. Berg contacted Mr. Gallagher and indicated that Pioneer had engaged in productive discussions with Company F, which was open to considering the possibility of a three-party combination. Mr. Gallagher indicated that he would present any formal proposal to the Parsley board for consideration.

On June 12, 2020, Mr. Scott Sheffield contacted Mr. Alameddine to discuss Mr. Scott Sheffield’s discussions with Company F and the ongoing discussions with Parsley generally. Mr. Scott Sheffield indicated that Messrs. Berg and Dealy would lead any aspect of the negotiations involving Parsley.

Also on June 12, 2020, the Parsley board met to receive an update from Parsley senior management on ongoing discussions regarding a potential strategic combination, including the potential three-party combination involving Pioneer and Company F and discussions with Company B regarding a potential combination. Parsley management also advised the Parsley board that its outreach to Company A, Company C, Company D, Company E and Company G had not resulted in any indications of interest from those parties in pursuing a combination at this time. The Parsley board discussed each of Company B and the potential three-party combination with Pioneer and Company F, and authorized Mr. Gallagher to continue discussions for each prospective transaction, but instructed him that that a no-premium to single digit premium combination would not be attractive. In addition, the Parsley board authorized Mr. Alameddine, Mr. VanLoh, Mr. Bryan Sheffield and Mr. Gallagher, as a small committee, to evaluate any formal proposals to ensure that the terms justified consideration of the full board.

Following the Parsley board meeting, Mr. Gallagher called Mr. Berg to advise him that the Parsley board was evaluating whether to grant exclusivity to another potential counterparty, and thus Pioneer should move quickly to make a formal proposal. Mr. Gallagher emphasized that the Parsley board was not likely to accept a proposal that did not include an appropriate premium reflecting Parsley’s contribution to the pro forma company. Following such call, Messrs. Berg, Dealy and Scott Sheffield updated Mr. Thompson on Mr. Berg’s discussions with Mr. Gallagher and determined to call a meeting of the Pioneer board to discuss a potential three-party combination with Parsley and Company F.

On June 13, 2020, Mr. Berg contacted Mr. Gallagher to inform him that, following a meeting on that date of the Pioneer management committee, comprised of Messrs. Scott Sheffield, Berg, Dealy and several other members of Pioneer senior management, the management committee determined to support Pioneer’s continued pursuit of a three-party combination with Parsley and Company F.

On June 15, 2020, the Pioneer board held a meeting at which Pioneer senior management provided an overview of its evaluation of potential strategic initiatives available to Pioneer, including an analysis of the potential strengths, weaknesses, opportunities and threats in connection with pursuing a three-party combination involving Parsley and Company F. Pioneer senior management also provided an update on discussions held with representatives of Parsley and Company F regarding the potential transaction and remaining key due diligence items. The Pioneer board also discussed, together with Morris, Nichols, Arsht & Tunnell LLP, Pioneer’s Delaware legal advisor (“Morris Nichols”), the appropriate procedural protections related to Mr. Scott Sheffield’s involvement in any potential combination involving Parsley in light of the familial relationship. In

particular, these procedural protections included restrictions on Mr. Scott Sheffield’s participation in substantive negotiations with Parsley and the recusal of Mr. Scott Sheffield from any deliberations of Pioneer’s disinterested directors meeting in executive session regarding a potential combination with Parsley. At the conclusion of the meeting, the Pioneer board indicated its support of Pioneer senior management conducting further due diligence on Parsley and Company F in order to provide the Board with a recommendation as to whether Pioneer should proceed with negotiating a potential three-party combination, and the Pioneer board approved Mr. Scott Sheffield’s leading the negotiations with Company F.

During its initial evaluation of a potential three-party combination with Parsley and Company F, Pioneer was advised by Goldman Sachs and The Klein Group LLC.

Also on June 15, 2020, Mr. Gallagher contacted a representative of Company B to advise him that the Parsley board was not willing to grant exclusivity at this time based on the Company B proposal.

Over the next several weeks, each of Parsley, Pioneer and Company F continued to explore the potential three-party combination, including conducting diligence on each other’s assets and operations and potential synergies.

On June 18, 2020, Messrs. Gallagher and Alameddine of Parsley had a call with Messrs. Berg, Dealy and Thompson to discuss and reconfirm each side’s agreement with respect to the recusal of each of Mr. Scott Sheffield and Mr. Bryan Sheffield from substantive discussions and negotiations between Pioneer and Parsley. Mr. Scott Sheffield also contacted Mr. Bryan Sheffield on that date to reconfirm such arrangement.

On June 19, 2020, Pioneer and Parsley entered into a second mutual confidentiality agreement that superseded the May 18, 2020 agreement, and which contained mutual customary standstill obligations in favor of each party, subject to the ability to privately communicate with the other party’s board of directors in a manner that would not be reasonably likely to place either party under a legal obligation to make a public announcement. The confidentiality agreement also contained a “fall away” provision rendering the standstill obligations inapplicable upon certain events related to a change of control transaction involving the other party. Each of Parsley and Pioneer also entered into separate confidentiality agreements with Company F with respect to a potential three-party combination on substantially the same terms.

On June 19, 2020, Pioneer engaged Gibson, Dunn & Crutcher LLP (“Gibson Dunn”) to represent Pioneer in connection with a possible combination involving Parsley and Company F.

On June 24, 2020, a representative of Company G contacted Mr. Bryan Sheffield and informed him that Company G was not interested in a potential combination with Parsley at that time.

On June 29, 2020, at a meeting of the Pioneer board, Pioneer senior management provided the Pioneer board with an update on the ongoing discussions with Parsley and Company F.

On July 20, 2020, Parsley and Bank of Montreal amended their July 24, 2019 engagement letter to reflect the current anticipated structure, fees and advisory services to be provided by Bank of Montreal with respect to a potential monetization of a minority interest in Parsley’s water assets.

On July 21, 2020, Mr. Gallagher, Mr. Ryan Dalton, Executive Vice President–Chief Financial Officer of Parsley, and Mr. VanLoh met with Messrs. Dealy, Berg and Scott Sheffield of Pioneer, as well as representatives of Company F, to discuss potential economics for a three-party combination. During the course of these discussions, representatives of Pioneer and Company F indicated that they had been working under the assumption that Parsley stockholders would receive an approximate 5% to 10% premium, though that premium was potentially under pressure due to the recent runup in the price of Parsley Class A common stock compared to the price performance of Pioneer common stock. On July 20, 2020, the closing price of Parsley Class A common stock was $10.66 per share, compared to $96.91 per share for Pioneer common stock, implying a 0.1099 exchange ratio assuming a no-premium transaction, and an exchange ratio range of 0.1154 to 0.1209 assuming a 5% to 10% premium range. The representatives of Parsley indicated that they believed a transaction on such terms would undervalue Parsley’s contributions to the combined company, but indicated they would discuss such potential transaction with senior management of Parsley and the Parsley board.

That same afternoon, Messrs. Gallagher and VanLoh reconvened with Messrs. Bryan Sheffield and Alameddine to discuss the terms of the combination that had been proposed at the meeting earlier that day. After the discussion, Messrs. Gallagher, Alameddine, VanLoh and Bryan Sheffield agreed that, based on the Parsley board’s previous instructions regarding a no to single-digit premium proposal, the proposed terms were not attractive enough to warrant any further discussions regarding the potential combination. Later that night, Mr. Gallagher informed Mr. Dealy that Parsley was no longer interested in pursuing a three-party combination, given the proposed terms. Mr. Gallagher reiterated that Parsley was seeking a premium in the three-party combination in excess of 20%.

Following their call with Mr. Gallagher, Messrs. Dealy and Berg determined to stop work on the potential three-party combination and communicated the same to the Pioneer board. Mr. Scott Sheffield separately communicated this determination to representatives of Company F. At a meeting of the Pioneer board held on July 31, 2020, Pioneer senior management updated the Pioneer board on, among other things, the conclusion of discussions regarding the potential three-party combination.

On August 4, 2020, at a regularly scheduled meeting of the Parsley board, Mr. Gallagher recapped the history of negotiations with the prospective counterparties, including the unsuccessful negotiation to enter into a three-party combination with Pioneer and Company F due to the lack of an appropriate premium for Parsley stockholders. The Parsley board discussed market conditions and reiterated its strategic goals of lowering leverage, generating sustainable free cash flow and moderate growth through cycles and achieving greater market capitalization and operational scale.

On August 11, 2020, Mr. Scott Sheffield had separate discussions with representatives of Company G and Company C regarding potential combinations, including the possibility of a three-party combination involving such company, Pioneer and either Parsley or Company F.

On August 19, 2020, at a regularly scheduled meeting of the Pioneer board, Mr. Dealy provided an overview of Pioneer’s strategic initiatives, and the Pioneer board discussed Pioneer’s competitive position, opportunities, prospects and long-term strategy, including the options of continuing to operate as a stand-alone company or acquiring additional assets in the Permian Basin. Pioneer senior management discussed with the Pioneer board the merits of adding scale in the Permian Basin, including the addition of inventory at attractive valuations, improved cash flow and free cash flow generation, continued levels of low leverage and the ability for Pioneer to enhance its investment thesis.

On August 20, 2020, Mr. Gallagher contacted Mr. Scott Sheffield to express his disappointment that the parties’ discussions regarding a potential combination had failed and to highlight some of the potential benefits of a merger between the parties. Mr. Gallagher advised Mr. Scott Sheffield regarding Parsley’s view that a combination of Parsley and Pioneer would result in significantly greater synergies than Pioneer was assuming, including through the refinancing of Parsley’s indebtedness on more attractive terms. Mr. Scott Sheffield suggested that Mr. Gallagher review the synergies discussion with Mr. Dealy, and such a review took place on August 28, 2020.

Over the next several weeks, senior management of Parsley and Pioneer continued to analyze potential synergies related to a transaction and to conduct other due diligence, including in respect of Parsley’s debt and other items that might result in potential synergies achievable through a potential combination.

On September 5, 2020, Mr. Scott Sheffield called Mr. Alameddine, who expressed a continued belief in Parsley’s status as an attractive acquisition target and indicated that the company had received strong expressions of interest from a third party. Mr. Alameddine communicated his belief that the Parsley board would be willing to recommence discussions at a range of 15% to 20% or potentially higher premium, and Messrs. Scott Sheffield and Alameddine moved to schedule a call between the parties’ senior management. Mr. Scott Sheffield informed Mr. Thompson of his conversation with Mr. Alameddine the following day.

On September 14, 2020, the Pioneer board held a meeting, during which representatives of Pioneer senior management provided an update on a potential business combination with Parsley and discussed investor materials recently made publicly available by Parsley. In addition, the Pioneer board discussed with representatives of Morris Nichols recent developments and communications regarding the potential combination with Parsley.

On September 16, 2020, Messrs. Berg and Dealy had a call with Mr. Gallagher, during which they discussed the Pioneer board’s process with respect to evaluating a potential combination with Parsley. On the same day, Mr. Thompson had a call with Mr. Alameddine, during which Mr. Thompson provided an update on the Pioneer board’s process and Mr. Alameddine discussed the Parsley board’s expectations regarding the receipt of a premium in any potential combination within the range of 15% to 20% and potentially higher.

On September 21, 2020, the Parsley board met to review the possible sale of a minority equity interest in Parsley’s fresh water and produced water assets. The Parsley board discussed the strategic rationale for the proposed transaction, and senior management reported that they had selected a preferred counterparty and reviewed with the Parsley board the material terms of the proposed transaction. The Parsley board authorized senior management to continue negotiations with the prospective counterparty and requested a follow-up call to discuss progress.

On September 23, 2020, Mr. Bryan Sheffield contacted a representative of Company B to discuss market conditions and industry consolidation in general. He discussed Parsley’s assets and other characteristics and expressed his belief that Parsley’s stockholders should receive a premium should the company be acquired.

On September 28, 2020, the Parsley board met to further discuss a possible sale of a minority equity interest in Parsley’s water assets. After further discussion regarding the material terms of and strategic rationale for the proposed transaction, the Parsley board authorized senior management to finalize the legal agreements and approved the transaction, contingent upon the counterparty agreeing to make certain concessions on the financial terms.

On October 1, 2020, the Pioneer board met to discuss, among other things, the ongoing review by Pioneer’s management committee of strategic initiatives available to Pioneer. At such meeting, Pioneer senior management discussed with the Pioneer board the strengths and weaknesses of pursuing a stand-alone plan focused on maintaining Pioneer’s pure-play Permian strategy and exploiting Pioneer’s existing assets compared with near-term opportunities relating to acquiring the assets of others that would be accretive to cash flow and free cash flow and further improve its investment thesis. Pioneer senior management also discussed with the Pioneer board other strategic initiatives, including a possible sale of Pioneer. Following Pioneer senior management’s discussion of strategic initiatives, representatives of Goldman Sachs reviewed historical premia paid in precedent transactions based on publicly available information. The Pioneer board also discussed with Pioneer senior management, Gibson Dunn and Morris Nichols the procedural protections restricting the involvement of Mr. Scott Sheffield in substantive discussions and negotiations with Parsley and the recusal of Mr. Scott Sheffield and Mr. Phillip Gobe from the discussions and deliberations by Pioneer’s disinterested directors meeting in executive session regarding the potential combination with Parsley. The Pioneer board and Mr. Scott Sheffield determined that Mr. Scott Sheffield should continue to recuse himself from substantive discussions and negotiations with Parsley and also from deliberations of Pioneer’s disinterested directors regarding a potential combination with Parsley, due to his familial relationship with Mr. Bryan Sheffield. In addition, the Pioneer board and Mr. Gobe determined that Mr. Gobe should recuse himself from such discussions and deliberations due to his position as Chairman and Chief Executive Officer of ProPetro Holding Corp., which has a significant business relationship with Pioneer that could materially benefit from a combination with Parsley. At each subsequent meeting of the Pioneer board, during executive sessions of Pioneer’s disinterested directors, Messrs. Scott Sheffield and Gobe recused themselves from the discussion and deliberations with respect to the proposed combination with Parsley.

On October 4, 2020, the Pioneer board met to further discuss the opportunity of a potential combination of Pioneer and Parsley. Pioneer senior management and representatives of Goldman Sachs, Gibson Dunn and Morris Nichols were also present at the meeting. Goldman Sachs reviewed a preliminary financial analysis with respect to a potential business combination with Parsley. Gibson Dunn and Morris Nichols then provided the Pioneer board with an overview of their fiduciary duties with respect to the evaluation of a potential combination with Parsley, after which Gibson Dunn reviewed the key terms of the draft merger agreement to be proposed to Parsley in connection with the potential combination. Following a discussion on next steps, the Pioneer board approved Pioneer senior management’s recommendation to proceed with negotiating a potential combination at a specified exchange ratio range and delegated the conduct of such negotiations to Messrs. Dealy, Berg and Thompson.

On October 5, 2020, Messrs. Berg, Dealy, Gallagher and Roberts met to discuss the strategic rationale of a potential combination, with Messrs. Thompson and Alameddine also participating in the discussions virtually. During the course of these discussions, Messrs. Berg, Dealy and Thompson delivered to the Parsley representatives, on behalf of the Pioneer board, a proposal to negotiate a combination of Parsley and Pioneer at an exchange ratio of 0.1170 to 0.1200 shares of Pioneer common stock to be received for each share of Parsley common stock (the “October 5 proposed range”). The Pioneer representatives indicated that Pioneer believed it was the right counterparty for Parsley, with complementary assets, a similar corporate culture, an investment grade balance sheet, a strong free cash flow model built to return capital to stockholders and the size and scale to attract investors, and noted that the all-stock nature of the proposed combination would provide Parsley stockholders the opportunity to participate in the upside of the combined company as macroeconomic conditions improved. The Pioneer representatives also noted that the October 5 proposed range would have represented a meaningful premium to the closing price of Parsley Class A common stock over five of the six preceding weeks, and emphasized Pioneer’s sensitivity to equity market reaction to a transaction premium perceived to be excessive, which would be to the detriment of both companies. In this regard, the parties discussed recently announced upstream consolidation transactions with modest or no premiums, including the combination of Devon Energy Corporation and WPX Energy, Inc., announced on September 28, 2020, and the acquisition of Noble Energy, Inc. by Chevron Corporation, announced on July 20, 2020. The Pioneer representatives also proposed the addition of one member of the Parsley board to the Pioneer board at closing of the proposed combination, but indicated that Pioneer was open to evaluating the appointment of two Parsley directors, subject to agreement on who those individuals would be. The Pioneer and Parsley representatives also discussed the willingness of Quantum and Mr. Bryan Sheffield to enter into voting and lock-up agreements with Pioneer in connection with the proposed combination. At the conclusion of the meeting, the Pioneer representatives indicated they were prepared to deliver a draft merger agreement to Parsley, which Pioneer provided promptly following the meeting. The Parsley representatives advised the Pioneer representatives that they would discuss Pioneer’s proposal with the full Parsley board.

On October 6, 2020, the Parsley board met to review the proposal from Pioneer and to discuss whether the proposal justified engagement of financial advisors to assist in evaluating the proposal and to commence formal negotiations regarding a potential combination. Mr. Gallagher recapped all discussions that had occurred up to this point and the Parsley board engaged in a detailed discussion regarding the strategic rationale for a combination with Pioneer. The Parsley board acknowledged the potentially significant operational and financial synergies that could be achieved, the pro forma company’s operational scale, lower cost of capital, lower debt ratios, high asset quality, and its ability to generate free cash flow, return capital to stockholders, and deliver moderate production growth. The Parsley board also noted that the combined company would be the largest Permian-only independent, which it viewed as a potential differentiator for attracting investors and generating positive stock performance. In addition, the Parsley board discussed Parsley and Pioneer’s shared dedication to environmental, social, and governance performance, which it indicated would be critical for generating stockholder value in the long term. The Parsley board also discussed the pros and cons of continuing as a stand-alone company, including the risk of an extended downturn caused by COVID-19, ongoing industry consolidation and negative investor sentiment towards the sector, the combination of which might further erode Parsley’s trading multiples in comparison to larger competitors.

Based on this discussion, the Parsley board generally agreed that Pioneer was a very attractive potential merger partner, but that Parsley should seek an exchange ratio in excess of the October 5 proposed range before commencing negotiations of transaction documents. The Parsley board authorized Mr. Gallagher to continue discussions and seek a higher exchange ratio range from Pioneer, between the range of 0.1295 and 0.1315, which at such time represented premiums ranging from 12.29% to 14.03%, 20.79% to 22.65% and 23.26% to 25.16% to the Parsley common stock price based on the October 5, 2020 closing price, the average closing price for the 10-trading days prior and up to October 5, 2020 and the average closing price for the 30 trading days prior and up to October 5, 2020, respectively. After discussion of the relative merits of a combination with other counterparties and the likelihood of other potential counterparties being willing to pursue a transaction on more attractive terms than the October 5 proposed range, the Parsley board agreed that Mr. Gallagher should contact each of Company B and Company C and indicate that Parsley may be pursuing a strategic transaction in the relatively near term and gauge whether there had been any development in either party’s interest in evaluating a combination with Parsley. Finally, the Parsley board, together with Parsley senior management, discussed the formal engagement of legal and financial advisors, given the possibility that Parsley may soon engage in formal merger negotiations, and agreed to ask Parsley’s outside legal counsel, Vinson & Elkins, together with representatives from Credit Suisse, to participate in a Parsley board meeting later that week.

Following the Parsley board meeting, Mr. Gallagher called Mr. Dealy to discuss the Parsley board’s proposed exchange ratio range of 0.1295 to 0.1315 as well as its proposal for the appointment of two Parsley directors to the Pioneer board. Mr. Gallagher indicated that he believed the parties could quickly conclude negotiations of the merger agreement if there was agreement on the exchange ratio. On the following day, Messrs. Berg and Dealy called Mr. Gallagher to narrow the proposed exchange ratio range to 0.1190 to 0.1200. Mr. Gallagher indicated that he would discuss the proposal with the Parsley board.

On October 8, 2020, Mr. Gallagher reinitiated contact with representatives of each of Company B and Company C to gauge whether either party would have interest in pursuing a combination with Parsley.

On October 8, 2020, the Parsley board met to further consider the possibility of pursuing a combination with Pioneer. Members of Parsley senior management as well as representatives of Vinson & Elkins and Credit Suisse attended the meeting.

At the outset of the meeting, representatives of Vinson & Elkins reviewed with the members of the Parsley board their fiduciary duties with respect to the evaluation of a potential strategic combination. In addition, representatives of Vinson & Elkins discussed legal considerations related to actual or potential conflicts that could arise in connection with the evaluation of a strategic transaction, including the fact that the TRA holders (including Messrs. Bryan Sheffield, Gallagher, Dalton, and other officers) would be entitled to material early termination payments upon consummation of a transaction such as a combination with Pioneer (pursuant to the arrangement established at the time of Parsley’s IPO), as well as the familial relationship between Mr. Bryan Sheffield and Mr. Scott Sheffield.

Following the discussion of fiduciary duties led by Vinson & Elkins, representatives of Credit Suisse reviewed with the Parsley board certain information and financial aspects relating to a possible combination of Parsley and Pioneer. During the course of their presentation, representatives of Credit Suisse reviewed and discussed with members of the Parsley board and senior management the underperformance of the upstream oil and gas sector relative to other market sectors and the challenges associated with market positioning and attracting investor interest. Credit Suisse also reviewed selected preliminary financial information with respect to a potential combination with Pioneer and discussed certain other aspects relating to the potential combination. Representatives from Credit Suisse also discussed certain other potential counterparties and reviewed the challenges, based on the response of the market to recent strategic transactions in the upstream oil and gas sector, in attracting a high premium in the near term. At the conclusion of the meeting, the Parsley board determined to continue to seek a higher exchange ratio from Pioneer, and authorized a formal response to Pioneer that the

Parsley board would be willing to engage advisors and fully evaluate a proposed combination at no lower than a 0.1250 exchange ratio. The Parsley board also determined, following a review of Credit Suisse’s credentials and considering its experience on similar transactions within the industry, as well as its significant knowledge of Parsley’s assets, to formally engage Credit Suisse to provide advice to the Parsley board should it determine to proceed with negotiations of a combination with Pioneer. Credit Suisse was subsequently retained by Parsley to act as its financial advisor with respect to a possible business combination or similar transaction.

On October 9, 2020, Mr. Alameddine contacted Mr. Thompson to advise him of the outcome of the Parsley board meeting the prior day, and to discuss economic terms of a potential combination. Mr. Alameddine indicated to Mr. Thompson that the Parsley board was prepared to move forward with formal negotiations and evaluations of a combination with Pioneer at an exchange ratio of 0.1256. During the course of these discussions, Mr. Thompson advised Mr. Alameddine of the importance of understanding Parsley’s position on certain terms set forth in the initial draft merger agreement provided by Pioneer on October 5, 2020, including the mutual “force the vote” covenants that would preclude either Parsley or Pioneer from terminating the merger agreement to accept a superior proposal, equivalent termination fees payable upon a termination in connection with a change in board recommendation by other party, the execution of voting agreements with Parsley’s two largest stockholders, Quantum and Mr. Bryan Sheffield, and the agreement of Quantum and Mr. Bryan Sheffield to subject the Pioneer common stock they would receive in the merger to post-closing lock-ups.Mr. Alameddine also emphasized that Parsley was actively negotiating the potential sale of a minority equity interest in Parsley’s water assets and that time was of the essence if Pioneer wished to proceed because Parsley was not willing to delay the potential water transaction for an extended period. Also on that day, Mr. Gallagher called Mr. Scott Sheffield to discuss a potential three-party combination with Company C.

On October 11, 2020, the Pioneer board held a meeting to discuss the proposed combination with Parsley. Certain members of Pioneer senior management and representatives of Gibson Dunn, Morris Nichols, Goldman Sachs and Sard Verbinnen & Co. (“Sard Verbinnen”), Pioneer’s public relations advisor, were also in attendance. Mr. Dealy provided an update on negotiations with Parsley management, outlining the counterproposal relayed by Mr. Alameddine on October 9, 2020, and recommended that the Pioneer board provide Pioneer senior management with authority to continue negotiations with Parsley management at a proposed exchange ratio of 0.1230 at a one-day premium of no more than 10%, with 180-day post-closing lock-ups for Quantum and Mr. Bryan Sheffield and a termination fee payable by either party equal to 3% of Parsley’s equity value. Representatives of Goldman Sachs reviewed an updated preliminary financial analysis and discussion materials related to the potential business combination with Parsley. Finally, Sard Verbinnen discussed several public relations considerations regarding the proposed combination, provided key talking points for Pioneer senior management and the Pioneer board and outlined a communication plan for announcing a potential combination. At the conclusion of the meeting, the Pioneer board authorized Messrs. Berg, Dealy and Thompson to continue negotiations with Parsley management consistent with Mr. Dealy’s recommendations.

Later that day, Mr. Thompson and Mr. Alameddine and, separately, Messrs. Berg, Dealy and Gallagher engaged in discussions regarding the proposed exchange ratio for a combination of Parsley and Pioneer. During these discussions, the Pioneer representatives indicated the Pioneer board would be interested in pursuing a transaction at a 0.1230 exchange ratio, but not at a higher exchange ratio. Based on the Parsley board’s instructions at its October 8, 2020 meeting, Mr. Alameddine advised Mr. Thompson that the proposed exchange ratio was insufficient, and that the Parsley board was not willing to continue negotiations on such terms, and negotiations among the parties ceased. Messrs. Alameddine and Gallagher informed the Parsley board later that day that discussions had ceased, and on the following day, Mr. Dealy informed the Pioneer board of the same.

Also on October 11, 2020, a representative from Company B contacted Mr. Gallagher and advised him Company B would not make an offer at this time. On October 13, 2020, a representative from Company C similarly advised Mr. Gallagher that Company C was not prepared to pursue a combination at that time.

On October 13, 2020, media outlets reported that ConocoPhillips was in talks to acquire Concho Resources Inc. (“Concho Resources”), a large, independent, Permian-pure play exploration and production company, and a key competitor of Pioneer and Parsley. Following these media reports, there was a general increase in trading prices of Concho Resources’ competitor companies, including Pioneer and Parsley, although Parsley’s stock price improved more, on a relative basis, than Pioneer’s, trading up 7.06%, from $9.63 to $10.31, from the close of trading on October 13, 2020 to the close of trading on October 16, 2020, compared to Pioneer’s stock price, which traded up 2.39%, from $88.15 to $90.26 during the same period.

On October 14, 2020, Mr. Thompson contacted Mr. Alameddine and advised him that the Pioneer board was scheduled to meet the following day to evaluate making a revised proposal to Parsley. Mr. Thompson inquired of Mr. Alameddine whether Parsley would be receptive to an exchange ratio equal to 0.1243, if the Pioneer board approved making such proposal. Based on the Parsley board’s instructions at its October 8, 2020 meeting, Mr. Alameddine indicated that 0.1243 was unacceptable, and that the Parsley board would support an exchange ratio of no less than 0.1252.

On October 15, 2020, the Pioneer board met to evaluate the submission of a revised proposal to Parsley. Pioneer senior management provided an overview of the history of negotiations between Pioneer and Parsley as to proposed exchange ratios and the expected synergies resulting from the proposed combination, noting that the minimum exchange ratio of 0.1252 proposed earlier that day by Mr. Alameddine was expected to be more than offset by the present value of the expected synergies and, if realized, would result in a transaction highly accretive to cash flow and free cash flow, earnings per share and return on capital employed to Pioneer stockholders. Pioneer senior management then recommended approval of an exchange ratio of 0.1252, subject to the negotiation of the final terms of the proposed combination, including proposing the appointment of up to two additional directors to the Pioneer board to be mutually agreed between Pioneer and Parsley, a reciprocal termination fee equal to 3% of Parsley’s equity value, voting agreements with Quantum and Mr. Bryan Sheffield and post-closing lock-ups on shares of Pioneer common stock received by Quantum and Mr. Bryan Sheffield in the mergers for a minimum of 180 days, subject to the ability to sell an agreed portion of such shares during such period. The Pioneer board authorized Messrs. Dealy, Berg and Thompson to proceed with definitive negotiations on the basis of the foregoing recommendations, subject to the satisfactory completion of its legal and business due diligence of Parsley.

Following the meeting, Mr. Thompson contacted Mr. Alameddine to advise him that the Pioneer board had approved proceeding with definitive negotiations of a combination with Parsley at an exchange ratio of 0.1252 shares of Pioneer common stock to be paid for each share of Parsley common stock (the “October 15 proposal”). Mr. Alameddine communicated this information to Mr. Gallagher, and the two of them communicated the October 15 proposal to the rest of the Parsley board.

Also on October 15, 2020, Pioneer contacted Morgan Stanley to engage Morgan Stanley as a financial advisor to Pioneer in connection with the potential combination with Parsley based on, among other things, Morgan Stanley’s industry experience and performance, as well as its familiarity with both Pioneer and Parsley.

On October 16, 2020, representatives of senior management of each of Parsley and Pioneer, together with representatives from their respective legal advisors at Vinson & Elkins and Gibson Dunn, discussed key workstreams and potential timelines to complete due diligence and potentially execute a merger agreement. In addition, on the afternoon of October 16, 2020, Mr. Dalton discussed with representatives of Wells Fargo Securities the possible engagement of the bank as a financial advisor with respect to a potential combination of Parsley and Pioneer.

Also on October 16, 2020, the Parsley board met to consider the revised proposal from Pioneer, with the participation of Parsley senior management and representatives from Vinson & Elkins. During the meeting, Mr. Dalton reviewed with the Parsley board an updated set of forecasts for Parsley on a stand-alone basis, which were generally consistent with the forecasts reviewed and considered by the Parsley board at the outset of its

strategic alternative review during the spring of 2020, but updated for changes in commodity prices. Representatives from Vinson & Elkins also reviewed and discussed with the Parsley board key provisions of the merger agreement draft that had been provided by Pioneer on October 5, 2020, including (i) the fact that the merger agreement provided for a transaction structure that would generally result in a tax free transaction for Parsley Class A stockholders but a taxable transaction for Parsley LLC unitholders, (ii) the key conditions to closing of the merger, including receipt of stockholder approvals for both Pioneer and Parsley, (iii) the deal protection provisions, including the mutual non-solicitation and “force the vote” covenants and the proposed equivalent termination fees and expense reimbursement obligations, (iv) the request that each of Quantum and Mr. Bryan Sheffield execute voting agreements obligating them to vote in favor of the merger (even if the Parsley board changed its recommendation for the merger) and (v) the request that each of Quantum and Mr. Bryan Sheffield agree to post-closing lock-ups restricting their ability to transfer Pioneer shares for a period of time following closing of the merger. Among other things, the Parsley board discussed with the representatives of Vinson & Elkins whether it would be prudent to seek to negotiate with Pioneer an alternative transaction structure, which would likely result in tax deferral for Parsley LLC unitholders, but would present structural complexities, including creating a potentially inefficient financing structure by potentially triggering change of control provisions in certain of Pioneer’s debt agreements, increasing the risk that additional material indebtedness would be required to be refinanced or amended in connection with a combination. After discussion with its legal advisors, the Parsley board determined that it was very unlikely Pioneer would be willing to entertain such an alternative structure and that it would not be prudent to request that Pioneer consider the same, in light of other key deal terms of greater importance to Parsley stockholders as a whole. At the conclusion of the discussion of the October 15 proposal, including in comparison to the other alternatives that could be available to Parsley, the Parsley board determined to proceed towards negotiating definitive transaction documents, subject to satisfactory completion of due diligence, including financial due diligence. The Parsley board also provided Vinson & Elkins with direction as to how to respond on key terms of the merger agreement, and authorized senior management, together with Vinson & Elkins, to prepare and distribute a revised draft of the merger agreement to Pioneer, consistent with the feedback provided by the Parsley board. In addition, the Parsley board requested that Mr. Dalton proceed with the formal engagement of Wells Fargo Securities as a financial advisor.

Later on October 16, 2020, Vinson & Elkins distributed to Gibson Dunn a revised draft of the merger agreement including the following terms, as instructed by the Parsley board: (i) a no solicitation provision applicable to Parsley but a “no talk” provision applicable to Pioneer, which would restrict Pioneer’s ability to discuss alternative transaction proposals during the pendency of the merger, (ii) a “fiduciary out” applicable to Parsley, permitting the Parsley board to terminate the merger agreement to permit Parsley to enter into a definitive agreement with respect to a superior proposal, (iii) termination fees and expense reimbursement obligations payable by each of Pioneer and Parsley calculated to represent an equivalent percentage of each company’s equity value and (iv) restrictions on the ability of Pioneer to engage in certain transactions that would materially alter the nature of Pioneer between signing and closing without Parsley’s consent, including certain transactions involving the issuance of equity, the incurrence of debt or the acquisition or divestiture of material assets. In addition, at the direction of Mr. VanLoh (on behalf of Quantum) and Mr. Bryan Sheffield, the revised merger agreement indicated that while each would agree to enter into a voting agreement in support of the transaction, (a) neither party would agree to a post-closing lock-up on trading of Pioneer shares received in the merger and (b) any obligation to vote in favor of the merger would fall away upon a change in recommendation by the Parsley board.

From October 16, 2020, to October 19, 2020, Pioneer and Parsley, together with their advisors, conducted due diligence of each other, and exchanged confidential information with respect to each company, including the corporate financial forecasts of each company described under “The Mergers—Certain Pioneer Unaudited Prospective Financial and Operating Information” and “The Mergers—Certain Parsley Unaudited Prospective Financial and Operating Information.”

On October 17, 2020, following discussions with Gibson Dunn regarding the key issues presented in the revised draft of the merger agreement distributed by Vinson & Elkins the prior day, Messrs. Dealy and Berg

contacted Messrs. Gallagher and Roberts to discuss such key issues. In particular, Messrs. Dealy and Berg noted that (i) Pioneer desired 180-day post-closing lock-ups from each of Quantum and Mr. Bryan Sheffield, with the lock-ups falling away on 20% of each holder’s shares after 90 days, (ii) each of Quantum and Mr. Bryan Sheffield needed to be obligated to vote in favor of the mergers, regardless of whether the Parsley board continued to recommend a transaction, (iii) the merger agreement should contain a mutual no solicitation and force the vote covenant, (iv) termination fees for both parties should be equal to 3% of Parsley’s equity value and (v) that Parsley should have less flexibility and Pioneer should have more flexibility to operate their respective businesses during the pendency of the mergers than the draft provided by Vinson & Elkins permitted. Messrs. Dealy and Berg also communicated Pioneer’s willingness to add two mutually agreed upon Parsley board members to the Pioneer board, and Pioneer’s desire to have the parties to the tax receivable agreement acknowledge their agreement with Parsley’s historical method of calculating potential liabilities under the tax receivable agreement, in an amendment to the tax receivable agreement.

Later that night, Gibson Dunn distributed a revised draft of the merger agreement to Vinson & Elkins, which draft reflected the positions outlined by Messrs. Dealy and Berg.

On October 18, 2020, representatives of Vinson & Elkins and Gibson Dunn, together with senior management from each of Parsley and Pioneer, had a call to negotiate certain provisions in the revised draft merger agreement. During the call, Mr. Roberts and the Vinson & Elkins representatives advised Pioneer and its advisors that they intended to discuss the material open deal protection and other business points with the Parsley board that evening, and would revert with a comprehensive counterproposal after that discussion.

Also on October 18, 2020, Parsley entered into an engagement letter with Wells Fargo Securities to act as financial advisor with respect to a potential transaction involving Parsley’s business, assets or equity interests, which would include a potential transaction with Pioneer.

On that same day, Pioneer entered into engagement letters with each of Goldman Sachs and Morgan Stanley, pursuant to which each of them agreed to serve as a financial advisor to Pioneer with respect to the possible acquisition of Parsley by Pioneer.

Later on October 18, 2020, the Parsley board met, with members of Parsley management and representatives of Vinson & Elkins, Credit Suisse, Wells Fargo Securities and Ernst & Young LLP in attendance, to further consider the potential combination with Pioneer. During that meeting, representatives of Credit Suisse reviewed, among other things, the implied exchange ratio represented by the then current per-share prices of the common stock of Parsley and Pioneer, the percentage premium to then current per share price of Parsley Class A common stock and percentage premium to “unaffected” price, each as implied by the October 15 proposal, explaining that “unaffected” price reflected the last closing per-share price of Parsley Class A common stock on October 13, 2020, the day before published reports of a potential acquisition of Concho Resources by ConocoPhillips. Credit Suisse also provided an overview of Parsley Class A common stock price performance and analyst price targets for each of Parsley and Pioneer and discussed certain other financial aspects of the merger. Wells Fargo Securities then presented on a preliminary basis, among other things, the valuation of Parsley on a stand-alone basis, the valuation of Pioneer on a stand-alone basis, a comparison of financial metrics of each of Parsley and Pioneer to selected public companies and a discounted cash flow analysis of each of Parsley and Pioneer.

Also during the meeting, Ernst & Young LLP reviewed with the Parsley board the key terms of the tax receivable agreement. Parsley entered into the tax receivable agreement in connection with its IPO, which IPO was completed using an “Up-C” structure. In an Up-C structure, certain founders continue to hold their economic interests in an operating company subsidiary of the IPO issuer that is taxed as a partnership, while the public is offered shares in a publicly traded parent corporation. The units in the operating partnership are exchangeable for shares of the publicly traded corporation, and such exchanges, when completed, result in an increase or “step up” in tax basis of the operating company’s assets, which can be used to reduce corporate taxable income for the

benefit of all stockholders. The tax receivable agreement generally provides for the payment by Parsley to each TRA holder of 85% of the net cash savings, if any, in U.S. federal, state and local income tax or franchise tax that Parsley actually realizes (or is deemed to realize in certain circumstances) in periods after its IPO as a result of certain increases in tax basis and certain benefits attributable to imputed interest associated with the exchanges, with Parsley retaining the benefit of the remaining 15% of these cash savings. Pursuant to the terms of the tax receivable agreement, however, if Parsley experiences a change of control (as defined under the tax receivable agreement, which includes the mergers), Parsley is required to make an immediate lump-sum payment equal to the present value of hypothetical future payments that could be required to be paid under the tax receivable agreement (determined by applying a discount rate equivalent to the one-year London Interbank Offered Rate plus 3%). Representatives of Ernst & Young LLP noted to the Parsley board that they had calculated the early termination payments to be approximately $156 million in July 2020, and had re-calculated such payments as of October 18, 2020 to be approximately $157 million, basing the amount payable under the tax receivable agreement as of October 18, 2020 on current assumptions. For further discussion of amounts expected to be payable under the tax receivable agreement, please see “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers”.

Following discussion of the financial analyses, representatives from Vinson & Elkins reviewed with the Parsley board the key remaining open issues in the merger agreement, including (i) Pioneer’s position that the merger agreement should contain a mutual no solicitation and force the vote covenant, compared to Parsley’s requested “no talk” covenant applicable to Pioneer and “fiduciary out” applicable to Parsley, (ii) Pioneer’s position that termination fees for both parties should be equal to 3% of Parsley’s equity value, with expense reimbursement obligations at 1% of Parsley’s equity value, compared to Parsley’s position that the fees should be in proportion to each company’s equity value, (iii) Pioneer’s position that the obligations of each of Quantum and Mr. Bryan Sheffield to vote in favor of the merger should continue in the event the Parsley board were to change its recommendation, compared to Parsley’s view that such obligations should fall away in such event, and (iv) Pioneer’s position that it should have significant discretion to operate its business without input from Parsley during the period between signing and closing. The Parsley board then discussed potential responses with Vinson & Elkins and authorized senior management of Parsley and Vinson & Elkins to propose a resolution of all outstanding key points including the following terms: (a) mutual no solicitation covenants for Pioneer and Parsley, but a fiduciary out applicable only to Parsley, (b) termination fee and expense reimbursement obligations equal to 3% and 1% of Parsley’s equity value, respectively, payable by Parsley, with the termination fee and expense reimbursement obligations payable by Pioneer to equal double the amounts of the Parsley termination fee and expense reimbursement obligations, respectively, (c) the continuation of the obligations of Quantum and Mr. Bryan Sheffield under their respective voting agreements to vote in favor of the mergers (with the understanding that upon termination of the merger agreement upon exercise of a fiduciary out, the voting agreements would also terminate by their terms) and (d) Pioneer’s ability to exercise significant discretion in the operation of its business without input from Parsley during the interim period prior to closing, subject to a limitation on Pioneer’s ability to engage in acquisitions outside of the Permian Basin without Parsley’s consent. In addition, the Parsley board agreed that Pioneer should be advised to pursue any further negotiations with respect to the requested lock-ups directly with each of Quantum and Mr. Bryan Sheffield.

At the conclusion of the Parsley board meeting, the Parsley board members met in executive session and agreed to propose that Messrs. Gallagher and Alameddine be designated by Parsley for service on the Pioneer board following the mergers.

Following the Parsley board meeting, on the night of October 18, 2020, Mr. Gallagher contacted Messrs. Dealy and Berg and reviewed with them the key terms of the Parsley board’s counterproposal, and subsequently delivered a written summary of such counterproposal.

Later that night, Messrs. Gallagher and Roberts, together with representatives of Vinson & Elkins, and Messrs. Dealy and Berg, together with representatives of Gibson Dunn, met, and the representatives of Pioneer indicated that Pioneer was generally amenable to the proposed comprehensive counterproposal, subject to Pioneer being able to reach an acceptable agreement with each of Quantum and Mr. Bryan Sheffield regarding

the requested lock-ups and the satisfactory resolution of the other less material open matters in the merger agreement. Following that discussion, Vinson & Elkins circulated a revised draft merger agreement to Gibson Dunn reflecting the parties’ agreed terms.

Over the course of October 19, 2020, the parties and their respective advisors negotiated near final versions of the merger agreement, voting agreements, TRA amendment and other definitive documents. During these discussions, Mr. Bryan Sheffield and Mr. Berg, on behalf of Pioneer, negotiated the terms of Mr. Bryan Sheffield’s voting agreement, whereby Mr. Bryan Sheffield agreed to include in his voting agreement a lock-up of the shares beneficially owned by him pursuant to which Mr. Bryan Sheffield may not, without Pioneer’s prior written consent, subject to limited exceptions, offer, sell, transfer or otherwise dispose of more than 15% of the shares of Pioneer common stock issued to Mr. Bryan Sheffield pursuant to the terms of the merger agreement for a period of 90 days following the closing date of the merger,mergers or more than 30% of eachsuch shares for a period of 180 days following the closing date of the following conditions, ormergers. During the waiver thereof bysame time, Messrs. Berg and Dealy discussed with Mr. VanLoh whether Quantum would deliver a similar lock-up. Mr. VanLoh emphasized his confidence in the combination and Quantum’s intent to be a long-term holder, but expressed that Quantum would not agree to a lock-up. Pioneer Southwest:agreed that Quantum would not be required to deliver a lock-up.

eachThe same day, Messrs. Thompson and Alameddine discussed a possible transaction bonus pool program for Parsley employees, but ultimately decided that the parties would not establish a separate transaction bonus pool program. Rather, Parsley would proceed with its normal bonus program. Messrs. Thompson and Alameddine also discussed the treatment of the representations280(G) excise tax that certain Parsley employees may owe as a result of payments in connection with the mergers.

On the evening of October 19, 2020, media reports began to circulate that Pioneer and warranties containedParsley were in merger discussions.

On the morning of October 20, 2020, the Pioneer board convened a meeting, with members of Pioneer senior management and representatives of Gibson Dunn, Morris Nichols, Goldman Sachs and Morgan Stanley in attendance, to consider the proposed final terms of the combination with Parsley. At such meeting, Pioneer senior management provided an update on the due diligence that had been conducted on Parsley, including an overview of the methodology used to calculate the early termination payments payable under the tax receivable agreement. Pioneer senior management also discussed the two members of the Parsley board proposed to be appointed to the Pioneer board upon closing of the mergers, Messrs. Gallagher and Alameddine. Following Pioneer senior management’s presentation, representatives of Gibson Dunn reviewed with the Pioneer board their fiduciary duties with respect to their evaluation of the proposed combination and the key terms of the merger agreement, voting agreements and TRA amendment. Representatives of Morgan Stanley then provided an overview of the exploration and production landscape in the Permian Basin, followed by a review of its financial analysis of the exchange ratio. Morgan Stanley then rendered an oral opinion to the Pioneer Pioneer USA and MergerCo qualified as to materiality or material adverse effect must be true and correctboard (subsequently confirmed in all respects and those not so qualified must be true and correct in all material respects, in each case,a written opinion dated the same date) that, as of the date of such opinion, and based upon and subject to the merger agreementvarious assumptions made, procedures followed, matters considered and upon the closing date with the same effect as though all such representationsqualifications and warranties had been madelimitations on the closing date (in either case, except for any such representations and warranties made as of a specified date, in which case as of such date);

each and allscope of the agreements and covenants of Pioneer, Pioneer USA and MergerCo to be performed and complied withreview undertaken by Morgan Stanley as set forth in its written opinion, the exchange ratio pursuant to the merger agreement on or priorwas fair from a financial point of view to Pioneer, as more fully described below in the section titled “—Opinions of Pioneer’s Financial Advisors—Opinion of Morgan Stanley & Co. LLC”. In addition, representatives of Goldman Sachs reviewed with the Pioneer board Goldman Sachs’ financial analysis summarized in the section titled “—Opinions of Pioneer’s Financial Advisors—Opinion of Goldman Sachs & Co. LLC” and rendered to the closing date must have been duly performed and complied with in all material respects;

Pioneer Southwest must have receivedboard the oral opinion of Goldman Sachs (subsequently confirmed by delivery of a certificate signed bywritten opinion dated the chief executive officer, chief financial officer or executive vice president and general counsel ofsame date) to the Pioneer dated as of the closing date,board to the effect that, as of the conditions describeddate of Goldman Sachs’ written opinion and based upon and subject to the factors and assumptions set forth in Goldman Sachs’ written opinion, the exchange ratio pursuant to the merger agreement was fair from a financial point of view to Pioneer. Prior to the conclusion of the meeting and following discussion of the proposed combination by the Pioneer board and by the disinterested directors in the executive session, the Pioneer board (including Messrs. Scott Sheffield and Gobe) unanimously (i) determined that the mergers and the other transactions contemplated by the merger agreement were in the best interests of, and were advisable to, Pioneer and its stockholders, (ii) approved, adopted and declared advisable the

merger agreement and the transactions contemplated thereby, (iii) directed that the Pioneer stock issuance proposal be submitted to Pioneer stockholders for approval and (iv) resolved to recommend that Pioneer stockholders approve the Pioneer stock issuance at a duly held meeting of Pioneer stockholders for such purpose.

On the afternoon of October 20, 2020, the Parsley board met, with members of Parsley management and representatives of Vinson & Elkins, Credit Suisse and Wells Fargo Securities in attendance to consider the proposed final terms of the combination with Pioneer. At this meeting, Credit Suisse reviewed its financial analysis of the exchange ratio and rendered an oral opinion to the Parsley board (confirmed by delivery of a written opinion addressed to the Parsley board dated the same date) to the effect that, as of such date and based upon and subject to the factors and assumptions considered in connection with the preparation of its opinion, including among others that each Parsley LLC stapled unit is equivalent in value and identical in all other respects material to its analyses and opinion to a share of Parsley Class A common stock, the exchange ratio to be received by the holders of shares of Parsley Class A common stock with respect to their shares of Parsley Class A common stock in the first two bullet points immediately above have been satisfied;merger was fair, from a financial point of view, to the holders of shares of Parsley Class A common stock and

there must not have occurred a material adverse effect the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger was fair, from a financial point of view, to the holders of shares of Parsley Class B common stock, as more fully described below in the section entitled “—Opinions of Parsleys Financial Advisors—Opinion of Credit SuisseSecurities (USA) LLC”. In addition, representatives of Wells Fargo Securities reviewed with the Parsley board its final financial analysis of the exchange ratio provided for in the merger agreement and then representatives of Wells Fargo Securities rendered an oral opinion to the Parsley board (confirmed by delivery of a written opinion addressed to the Parsley board dated the same date) to the effect that, as of such date and based upon and subject to the assumptions made, procedures followed, matters considered and limitations and qualifications on the review undertaken by Wells Fargo Securities in preparing the opinion, including among others the assumption that the Parsley Class A common stock and the Parsley LLC stapled units are equivalent in all respects, the exchange ratio in the proposed mergers was fair, from a financial point of view, to the holders of Parsley Class A common stock and to the holders of Parsley LLC stapled units, as more fully described below in the section entitled “—Opinions of Parsleys Financial Advisors—Opinion of Wells Fargo Securities, LLC”. A representative of Vinson & Elkins then updated the Parsley board on the key terms in the merger agreement and reviewed with the members of the Parsley board their fiduciary duties with respect to the evaluation of the proposed combination. Prior to the end of the meeting, the Parsley board unanimously (i) declared that the merger agreement and the transactions contemplated thereby (including the integrated mergers) were fair to, and in the best interests of, Parsley and the Parsley stockholders, (ii) approved and declared advisable the merger agreement and the transactions contemplated thereby (including the integrated mergers) and (iii) recommended that the Parsley stockholders approve and adopt the merger agreement and the transactions contemplated thereby. In addition, the Parsley board authorized certain officers of Parsley to execute written consents on behalf of Parsley, (i) in its capacity as the managing member of Parsley LLC, determining that the merger agreement and the transactions contemplated thereby are fair to, and in the best interests of, Parsley LLC, and approving and declaring advisable the merger agreement and the transactions contemplated thereby and (ii) in its capacity as the holder of more than a majority of the issued and outstanding Parsley LLC units, adopting the merger agreement concurrently with its execution.

Later that afternoon, Parsley and Pioneer executed the merger agreement and Pioneer, Parsley and the other parties thereto executed the voting agreements and the TRA amendment. Following the closing of the U.S. stock markets, Pioneer and Parsley issued a joint press release announcing the proposed mergers and Pioneer hosted a conference call to discuss the transaction.

Recommendation of the Pioneer Board and Reasons for the Mergers

At a meeting held on October 20, 2020, the Pioneer board unanimously determined that the mergers and the other transactions contemplated by the merger agreement were in the best interests of, and were advisable to, Pioneer and its stockholders, approved, adopted and declared advisable the merger agreement and the transactions contemplated thereby, directed that the Pioneer stock issuance proposal be submitted to Pioneer

stockholders for approval and resolved to recommend that Pioneer stockholders approve the Pioneer stock issuance at a duly held meeting of Pioneer stockholders for such purpose. The Pioneer board unanimously recommends that Pioneer stockholders vote “FOR” the Pioneer stock issuance proposal.

In deciding to approve the merger agreement and to recommend that Pioneer stockholders approve the Pioneer stock issuance proposal, the Pioneer board consulted with Pioneer’s management and financial and legal advisors and considered several factors.

The Pioneer board considered a number of factors when evaluating the mergers, many of which support the Pioneer board’s determination that the mergers and the other related transactions contemplated by the merger agreement were in the best interests of, and were advisable to, Pioneer and its stockholders. The Pioneer board considered these factors as a whole and without assigning relative weights to each such factor, and overall considered the relevant factors to be favorable to, and in support of, its determinations and recommendations. These factors included:

the belief that the mergers will be accretive on key financial metrics beginning in 2021, including cash flow and free cash flow per share, earnings per share and return on capital employed;

the belief that the combined company will benefit from increased cash flows, further strengthening Pioneer’s investment framework by creating a more robust free cash flow profile, with a lower expected reinvestment rate range of 65% to 75% (based on futures strip pricing for oil and gas as of the time of the Pioneer board’s consideration);

the belief that the mergers will result in annual cost savings of approximately $325 million through operational efficiencies and reductions in general and administrative and interest expenses, with an expected present value in excess of $2 billion over a ten-year period;

the belief that the combined company will be a leading Permian Basin independent exploration and production company with a premium asset base of approximately 930 thousand net acres, with no federal acreage, and a production base of 328 thousand barrels of oil per day and 558 thousand barrels of oil equivalent per day based on reported production for the second quarter of 2020;

that, based on year-end 2019 proved reserves, the mergers will increase Pioneer’s proved reserves by approximately 65%;

that the mergers would enhance Pioneer’s asset base in the Permian Basin through the addition of complementary high-return inventory in the premier shale oil basin in the United States;

the belief that Parsley’s high-margin, oil-weighted asset base will integrate smoothly into Pioneer’s development program;

that the combination of Pioneer’s and Parsley’s acreage positions will create a highly contiguous geographic footprint in the Midland Basin that will allow for significant operational efficiencies;

the expectation that the leverage of the combined company will remain among the lowest in the industry, preserving Pioneer’s financial flexibility and enhancing the return of capital to stockholders, with the combined company expected to benefit from approximately $75 million per year in lower interest expense after the Parsley notes are refinanced at Pioneer’s lower borrowing costs and a gradual reduction of leverage over time to less than 0.75x net debt to EBITDAX;

that both Pioneer and Parsley have demonstrated peer-leading environmental, social and governance practices, and the expectation that the combined company will continue to aggressively pursue improvements and promote a culture that prioritizes sustainable operations;

that the merger consideration represented a premium of 7.9% based on the unaffected closing share prices on October 19, 2020, which the Pioneer board regarded as an attractive valuation relative to other transactions and peer comparisons;

that Pioneer will continue to be led by the current experienced Pioneer management team and that the addition of two directors to the Pioneer board, each of whom currently serves as a member of the Parsley board, in connection with the mergers will add valuable expertise and experience and in-depth familiarity with Parsley’s assets and operations to the Pioneer board, which will enhance the likelihood of attaining the strategic benefits that Pioneer expects to derive from the mergers;

the terms of the merger agreement, including the structure of the transaction, the conditions to each party’s obligation to complete the mergers and the ability of Pioneer to terminate the agreement under certain circumstances;

the belief that the restrictions imposed on Pioneer’s business and operations during the pendency of the mergers are reasonable and not unduly burdensome;

that the exchange ratio is fixed and will not fluctuate in the event that the market price of Parsley Class A common stock increases relative to the market price of Pioneer common stock between the date of the merger agreement and the closing date.

The merger agreement provides that the Pioneer Southwest unitholder voting condition may not be waived. Each of Pioneer and Pioneer Southwest (with the consent of the Pioneer Southwest Conflicts Committee, in mergers;

the caselikelihood of Pioneer Southwest) may choose to complete the merger even though any other condition to its obligation has not been satisfied if the necessary Pioneer Southwest unitholder approval has been obtained and the law allows it to do so.

Unitholder Approval; Acquisition Proposal; Change in Recommendation

Subject to the terms and conditionsconsummation of the merger agreement, and except as described further in “The Merger Agreement — Covenants — Unitholder Approval,” Pioneer Southwest will take, in accordance with applicable law, applicable stock exchange rules and Pioneer Southwest’s partnership agreement, all action necessary to call, hold and convene the Pioneer Southwest special meeting to consider and vote upon the approval of the merger proposal, as promptly as practicable after the registration statement of which this proxy statement/prospectus is a part is declared effective. The Pioneer Southwest Conflicts Committeemergers and the Pioneer Southwest GP Board will recommend approvalboard’s evaluation of the merger proposallikely time frame necessary to close the Pioneer Southwest unitholders, and Pioneer Southwest will take all reasonable lawful action to solicit such approval by the Pioneer Southwest unitholders. Except under certain conditions described in the following paragraph and in “The Merger Agreement — Covenants — Unitholder Approval,” neither the Pioneer Southwest Conflicts Committee nor the Pioneer Southwest GP Board will (A) withdraw, modify or qualify in any manner adverse to Pioneer the recommendation of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board or (B) publicly approve, adopt or recommend, or publicly propose to approve, adopt or recommend, any “acquisition proposal” (defined and described more fully under “The Merger Agreement — Covenants —mergers;

Acquisition Proposals”). The actions described in the preceding sentence are referred to in this proxy statement/prospectus as a “Pioneer Southwest Change in Recommendation.” None of Pioneer Southwest GP, Pioneer Southwest or any of their subsidiaries will execute or enter into any letter of intent, memorandum of understanding, agreement in principle, merger agreement, acquisition agreement, option agreement, joint venture agreement, partnership agreement or other similar contract providing for any acquisition proposal.

Notwithstanding the above paragraph, at any time prior to obtaining the Pioneer Southwest unitholder approval, the Pioneer Southwest Conflicts Committee or the Pioneer Southwest GP Board may make a Pioneer Southwest Change in Recommendation if it has determined in good faith, after consultation with its outside legal counsel and financial advisors, that failure to make a Pioneer Southwest Change in Recommendation would be inconsistent with its duties under Pioneer Southwest’s partnership agreement or applicable law; provided, however, that neither the Pioneer Southwest Conflicts Committee nor the Pioneer Southwest GP Board will be entitled to exercise its right to make a Pioneer Southwest Change in Recommendation pursuant to this sentence unless (i) Pioneer Southwest has not engaged in a material breach of its covenant related to acquisition proposals, (ii) Pioneer Southwest has provided to Pioneer three business days prior written notice, advising Pioneer that the Pioneer Southwest Conflicts Committee or the Pioneer Southwest GP Board intends to take such action, specifying the reasons for taking such action in reasonable detail, including, if a reason for the Pioneer Southwest Change in Recommendation is an acquisition proposal, that the Pioneer Southwest Conflicts Committee has determined that the acquisition proposal is a “superior proposal” (defined and described more fully under “The Merger Agreement — Covenants — Acquisition Proposals”) and specifying the terms and conditions of such acquisition proposal and the identity of the person making such acquisition proposal (it being understood that any amendment to the terms of any such acquisition proposal will require a new written notice, as described above, and an additional five business day period), (iii) if a reason for the Pioneer Southwest Change in Recommendation is an acquisition proposal, Pioneer Southwest has provided to Pioneer all materials and information delivered or made available to the person or group of persons making such acquisition proposal (to the extent not previously provided to Pioneer), (iv) each of Pioneer Southwest GP, Pioneer Southwest and the Pioneer Southwest Conflicts Committee has negotiated, and has used its commercially reasonable efforts to cause its representatives to negotiate, in good faith with Pioneer during such notice period to enable Pioneer to revise the terms of the merger agreement such that it would obviate the need for making the Pioneer Southwest Change in Recommendation, and (v) following the end of such notice period, the Pioneer Southwest Conflicts Committee will have considered in good faith any changes to the merger agreement proposed by Pioneer and will have determined that the failure to make a Pioneer Southwest Change in Recommendation would continue to be inconsistent with its duties under Pioneer Southwest’s partnership agreement or applicable law even if such revisions proposed by Pioneer were to be given effect and, if a reason for the Pioneer Southwest Change in Recommendation is an acquisition proposal, that the acquisition proposal continues to be a superior proposal even if the revisions proposed by Pioneer were to be given effect. Any Pioneer Southwest Change in Recommendation will not invalidate the approval (or “Special Approval,” as defined in Pioneer Southwest’s partnership agreement) of the merger agreement or any other approval of the Pioneer Southwest Conflicts Committee, including in any respect that would have the effect of causing any state (including Delaware) takeover statute or other similar statute to be applicable to the merger transactions.

Pioneer Southwest GP and Pioneer Southwest will, and they will cause their subsidiaries and representatives to, (i) immediately cease and terminate any solicitation, encouragement, discussions or negotiations with any person that may be ongoing with respect to or that may reasonably be expected to lead to an acquisition proposal, and (ii) request such person to promptly return or destroy all confidential information concerning Pioneer Southwest and its subsidiaries.

Neither Pioneer Southwest GP nor Pioneer Southwest will, and they will cause their subsidiaries and use their commercially reasonable efforts to cause their representatives not to, directly or indirectly, (i) initiate, solicit, knowingly encourage or knowingly facilitate (including by way of furnishing information) any inquiries

regarding, or the making or submission of any proposal or offer that constitutes, or may reasonably be expected to lead to, an acquisition proposal, (ii) conduct or participate in any discussions or negotiations regarding any acquisition proposal, or (iii) furnish to any person any non-public information or data relating to Pioneer Southwest or any of its subsidiaries or afford access to the business, properties, assets, or, except as required by law or Pioneer Southwest’s partnership agreement, books or records of Pioneer Southwest or any of its subsidiaries. Notwithstanding the foregoing, at any time prior to obtaining the Pioneer Southwest unitholder approval, the Pioneer Southwest Conflicts Committee may take the actions described in clauses (ii) and (iii) above with respect to a third person that makes a bona fide unsolicited acquisition proposal that did not result from a material breach of the provisions of the merger agreement described in this paragraph, if (A) the Pioneer Southwest Conflicts Committee, after consultation with its outside legal counsel and financial advisors, determines in good faith that such acquisition proposal constitutes or could reasonably be expected to result in a superior proposal and that the failure to take such action would be inconsistent with its duties under Pioneer Southwest’s partnership agreement or applicable law, and (B) prior to furnishing any such non-public information to such third person, Pioneer Southwest receives from such third person an executed confidentiality agreement as further described under “The Merger Agreement — Covenants — Acquisition Proposals.”

Termination of the Merger Agreement

Pioneer and Pioneer Southwest can agree to terminate the merger agreement by mutual written consent at any time without completing the merger, even after the Pioneer Southwest unitholders have approved the merger proposal. In addition, either party may terminate the merger agreement on its own upon written notice to the other without completing the merger if:

the merger is not completed on or before March 17, 2014; provided, however, that the right to terminate the merger agreement due to the failure to complete the merger on or before March 17, 2014 will not be available to a party whose failure to fulfill any material obligation under the merger agreement or other material breach of the merger agreement has been the primary cause of, or resulted in, the failure of the merger to have been consummated on or before March 17, 2014;

 

any governmental authority has issued a final and non-appealable statute, rule, order, decree or regulation or taken any other action

that permanently restrains, enjoins or prohibits the consummation of the merger, or makes the merger illegal, so long as the terminating party is not then in material breach of the merger agreement;

there has been a material breach of or any material inaccuracy in any of the representations or warranties set forth in the merger agreement on the part of any of the other parties, which breach is not cured within 30 days following receipt by the breaching party of written notice of its breach from the terminating party, or which breach, by its nature, cannot be cured prior to March 17, 2014, provided in any such case that the terminating party is not then in material breach of any representation, warranty, covenant or other agreement contained in the merger agreement. No partyPioneer stockholders will have the right, however,opportunity to terminatevote on the merger agreement pursuantPioneer stock issuance proposal, which is a condition precedent to the provision summarized in this bullet point unless the breach of a representation or warranty, together with all other such breaches, would entitle the party receiving such representation not to consummate the transactions contemplated by the merger agreement because the closing conditions described in the first bullet point under “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer” or “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer Southwest,” as applicable, have not been met;mergers;

 

there has been a material breach of any of the covenants or agreements set forth in the merger agreement on the part of any of the other parties to the merger agreement, and the breach has not been cured within 30 days following receipt by the breaching party of written notice of such breach from the terminating party, or which breach, by its nature, cannot be cured prior to March 17, 2014, so long as

the terminating party itself is not then in material breach of any representation, warranty, covenant or other agreement contained in the merger agreement. In no event, however, will any party have the right to terminate the merger agreement pursuant to the provision summarized in this bullet point unless the breach of covenants or agreements, together with all other such breaches, would entitle the party receiving the benefit of such covenants or agreements not to consummate the transactions contemplated by the merger agreement because the closing conditions described in the first bullet point under “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer” or “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer Southwest,” as applicable, have not been met;

Pioneer Southwest does not obtain the Pioneer Southwest unitholder approval at the Pioneer Southwest special meeting; provided, however, that the right to terminate the merger agreement under the provision described in this bullet point will not be available to the terminating party where the failure to obtain the Pioneer Southwest unitholder approval has been caused by the action or failure to actboard’s knowledge of, the terminating party and such action or failure to act constitutes a material breach by the terminating party of the merger agreement or the voting agreement; or

a Pioneer Southwest Change in Recommendation has occurred.

Federal Income Tax Consequences of the Merger

Tax matters associated with the merger are complicated. Under current law, it is anticipated for U.S. federal income tax purposes that Pioneer Southwest unitholders generally will recognize gain with respect to the exchange of Pioneer Southwest common units for shares of Pioneer common stock in the merger in an amount equal to the excess of (1) each Pioneer Southwest unitholder’s “amount realized” for U.S. federal income tax purposes, which equals the sum of the fair market value of the shares of Pioneer common stock received, plus the unitholder’s allocated share of Pioneer Southwest’s pre-merger liabilities (it being understood that no Pioneer Southwest unitholder bears any personal responsibility or liability in respect of such allocated liabilities), over (2) the unitholder’s aggregate adjusted tax basis in Pioneer Southwest common units (including basis attributable to the unitholder’s share of Pioneer Southwest’s pre-merger liabilities). Pioneer Southwest unitholders generally will recognize loss to the extent that the amount of their basis described in clause (2) above exceeds the amount realized described in clause (1) above. A portion of any amount realized by a unitholder will be treated as income subject to U.S. federal income tax at ordinary rates (up to 39.6% under current law) rather than capital gains rates due to the operation of the recapture rules applicable to depreciation, depletion and intangible drilling cost deductions allocable to the Pioneer Southwest unitholders, even if the Pioneer Southwest unitholder’s aggregate adjusted basis in Pioneer Southwest common units exceeds the amount realized in the exchange. In addition, certain Pioneer Southwest unitholders may be subjected to the 3.8% Medicare tax on unearned income in respect of any net gain from the exchange. Pioneer Southwest unitholders are urged to consult their tax advisors for a full understanding of the U.S. federal, state, local and foreign tax consequences of the merger that will be applicable to them. Please read “Material U.S. Federal Income Tax Consequences of the Merger” beginning on page 129 for a more complete discussion of the U.S. federal income tax consequences of the merger.

Other Information Related to the Merger

No Appraisal Rights

Pioneer Southwest unitholders do not have appraisal rights under Pioneer Southwest’s partnership agreement, the merger agreement or Delaware or other applicable law.

Antitrust and Regulatory Matters

No antitrust or other regulatory clearances are required as a condition to the consummation of the merger.

Listing of Pioneer Common Stock to be Issued in the Merger; Delisting and Deregistration of Pioneer Southwest Common Units

Pioneer expects to obtain approval to list on the NYSE the shares of Pioneer common stock to be issued pursuant to the merger agreement, which approval (subject to official notice of issuance) is a condition to the merger. Upon completion of the merger, Pioneer Southwest common units currently listed on the NYSE will cease to be listed on the NYSE and will be subsequently deregistered under the Exchange Act.

Accounting Treatment

The merger will be accounted for in accordance with Financial Accounting Standards Board Accounting Standards Codification 810,Consolidations — Overall — Changes in Parent’s Ownership Interest in a Subsidiary, which is referred to as ASC 810. As Pioneer will control Pioneer Southwest before and after the merger, the changes in Pioneer’s ownership interest in Pioneer Southwest will be accounted for as an equity transaction and no gain or loss on the merger will be recognized in Pioneer’s consolidated statements of operations.

Comparison of the Rights of Pioneer Stockholders and Pioneer Southwest Unitholders

Pioneer Southwest unitholders will own shares of Pioneer common stock following the completion of the merger, and their rights associateddiscussions with Pioneer common stock will be different from their rights as Pioneer Southwest unitholders due to the differences between the entity forms and governing documents of Pioneer and Pioneer Southwest. See “Comparison of the Rights of Pioneer Stockholders and Pioneer Southwest Unitholders” beginning on page 111 of this proxy statement/prospectus.

Pending Litigation

On May 13, 2013, David Flecker, a purported unitholder of Pioneer Southwest, filed a class action petition on behalf of the Pioneer Southwest unitholders and a derivative suit on behalf of Pioneer Southwest against Pioneer USA, Pioneer Southwest GP and the directors of Pioneer Southwest GP, in the 134th Judicial District of Dallas County, Texas (the “Flecker Lawsuit”). A similar class action petition and derivative suit was filed against the same defendants on May 20, 2013, in the 160th Judicial District of Dallas County, Texas, by purported unitholder Vipul Patel (the “Patel Lawsuit”). On August 27, 2013, the plaintiff in the Flecker Lawsuit filed an amended petition. On September 3, 2013, the court consolidated the Patel Lawsuit into the Flecker Lawsuit (as consolidated, the “Texas State Court Lawsuit”), and the plaintiffs filed a consolidated derivative and class action petition on September 5, 2013.

The Texas State Court Lawsuit alleges, among other things, that the consideration offered by Pioneer is unfair and inadequate and that, by pursuing a transaction that is the result of an allegedly conflicted and unfair process, the defendants have breached their duties under Pioneer Southwest’s partnership agreement as well as the implied covenant of good faith and fair dealing, and are engaging in self-dealing. Specifically, the lawsuit alleges that the director defendants: (i) engaged in self-dealing, failed to act in good faith toward Pioneer Southwest, and breached their duties owed to Pioneer Southwest; (ii) failed to properly value Pioneer Southwestmanagement and its various assets and operations and ignored or failed to protect against the numerous conflicts of interest arising out of the proposed transaction; and (iii) breached the implied covenant of good faith and fair dealing by engaging in a flawed merger process. The Texas State Court Lawsuit also alleges that defendants Pioneer, Pioneer USA and Pioneer Southwest GP aided and abetted the director defendants in their purported breach of fiduciary duties.

Based on these allegations, the plaintiffs in the Texas State Court Lawsuit seek to enjoin the defendants from proceeding with or consummating the proposed transaction. To the extent that the merger is implemented

before relief is granted, the plaintiffs seek to have the merger rescinded. The plaintiffs also seek money damages and attorneys’ fees. The defendants have filed a motion to dismiss the Texas State Court Lawsuit based on improper forum.

On August 21, 2013, Allan H. Beverly, a purported Pioneer Southwest unitholder, filed a class action complaint against Pioneer Southwest, Pioneer, Pioneer USA, MergerCo and the directors of Pioneer Southwest GP in the United States District Court for the Northern District of Texas (the “Beverly Lawsuit”). The Beverly Lawsuit alleges that the defendants breached their fiduciary duties by agreeing to the merger by means of an unfair process and for an unfair price. Specifically, the lawsuit alleges that the director defendants: (i) failed to maximize the value of Pioneer Southwest to its public unitholders and took steps to avoid competitive bidding; (ii) failed to properly value Pioneer Southwest; and (iii) ignored or failed to protect against the numerous conflicts of interest arising out of the proposed transaction. The Beverly Lawsuit also alleges that defendants Pioneer, Pioneer USA and MergerCo aided and abetted the director defendants in their purported breach of fiduciary duties.

On September 13, 2013, Douglas Shelton, another purported Pioneer Southwest unitholder, filed a class action complaint against the same defendants in the Beverly Lawsuit (as well as Pioneer Southwest GP) in the same court as the Beverly Lawsuit (the “Shelton Lawsuit”). The Shelton Lawsuit makes similar allegations to the Beverly Lawsuit, and also alleges that Section 7.9 of the Pioneer Southwest partnership agreement fails to alter or eliminate the defendants’ common law fiduciary duties owed to Pioneer Southwest unitholders in the context of the merger. Specifically, the lawsuit alleges: (1) that Pioneer, as controlling unitholder, failed to fulfill its fiduciary duties in connection with the merger because it purportedly cannot establish that the proposed merger is the result of a fair process that will return a fair price to the Pioneer Southwest unaffiliated unitholders; (2) that the director defendants breached their fiduciary duties by failing to exercise due care and diligence in connection with the proposed merger because the proposed merger is purportedly not the result of a fair process that will return a fair price to the Pioneer Southwest unaffiliated unitholders; and (3) that the non-director defendants aided and abetted the director defendants in their purported breach of fiduciary duties. The plaintiffs in the Beverly Lawsuit and the Shelton Lawsuit seek the same remedies as the plaintiffs in the Texas State Court Lawsuit.

Pioneer and Pioneer Southwest cannot predict the outcome of these or any other lawsuits that might be filed subsequent to the date of the filing of this proxy statement/prospectus, nor can Pioneer and Pioneer Southwest predict the amount of time and expense that will be required to resolve these lawsuits. Pioneer, Pioneer Southwest and the other defendants named in the lawsuits intend to defend vigorously against these and any other actions.

Summary of Risk Factors

You should consider carefully all the risk factors together with all of the other information included in this proxy statement/prospectus before deciding how to vote. The risks related to the merger transactions, Pioneer’s business following the merger, Pioneer’s common stock and Pioneer Southwest’s business and common units if the merger does not occur, and tax related risks are described under the caption “Risk Factors” beginning on page 35 of this proxy statement/prospectus.

Organizational Chart

Before the Merger

The following diagram depicts the organizational structure of Pioneer and Pioneer Southwest as of September 16, 2013, before the consummation of the merger and the other merger transactions.

LOGO

After the Merger

The following diagram depicts the organizational structure of Pioneer and Pioneer Southwest immediately after giving effect to the merger and the other merger transactions.

LOGO

Selected Historical and Pro Forma Financial and Operating Information of Pioneer and Pioneer Southwest

The following tables set forth, for the periods and at the dates indicated, summary historical financial and operating information for Pioneer and Pioneer Southwest and summary unaudited pro forma financial information for Pioneer after giving effect to the proposed merger. The summary historical financial data as of and for each of the years ended December 31, 2008, 2009, 2010, 2011 and 2012, are derived from and should be read in conjunction with the audited financial statements and accompanying footnotes of Pioneer and Pioneer Southwest, respectively. The summary historical financial data as of and for the six-month periods ended June 30, 2012 and 2013, are derived from and should be read in conjunction with the unaudited financial statements and accompanying footnotes of Pioneer and Pioneer Southwest, respectively.advisors regarding, Pioneer’s and Pioneer Southwest’s consolidated balance sheets as of December 31, 2011 and 2012, and as of June 30, 2013, and the related consolidated statements of operations, comprehensive income, cash flows and equity/partners’ capital for each of the three years in the period ended December 31, 2012, and the six months ended June 30, 2013, are incorporated by reference into this proxy statement/prospectus from Pioneer’s and Pioneer Southwest’s respective Annual Reports on Form 10-K for the year ended December 31, 2012, and their respective Quarterly Reports on Form 10-Q for the six months ended June 30, 2013.

The summary unaudited pro forma condensed consolidated financial information for Pioneer shows the pro forma effect of the proposed merger. For a complete discussion of the pro forma adjustments underlying the amounts in the table on the following page, please read “Unaudited Pro Forma Condensed Consolidated Financial Statements” beginning on page F-2 of this proxy statement/prospectus.

The proposed merger will be accounted for in accordance with Financial Accounting Standards Board Accounting Standards Codification 810,Consolidations — Overall — Changes in Parent’s Ownership Interest in a Subsidiary, which is referred to as ASC 810. As Pioneer will control Pioneer Southwest before and after the merger, the changes in Pioneer’s ownership interest in Pioneer Southwest will be accounted for as an equity transaction and no gain or loss on the merger will be recognized in Pioneer’s consolidated statements of operations.

The unaudited pro forma condensed consolidated financial statements have been prepared to assist in the analysis of the financial effects of the proposed merger. The unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 2012, and the six months ended June 30, 2013, have been prepared to give effect to the proposed merger as if it had occurred on January 1, 2012. The unaudited pro forma condensed consolidated balance sheet has been prepared to give effect to the proposed merger as if it had occurred on June 30, 2013. The unaudited pro forma condensed consolidated financial statements are based on assumptions that Pioneer and Pioneer Southwest believe are reasonable under the circumstances and are intended for informational purposes only. They are not necessarily indicative of the financial results that would have occurred if the merger transactions had taken place on the dates indicated, nor are they indicative of the future consolidated results of Pioneer. They also do not reflect non-recurring items arising directly from the merger or any cost savings that the combined entity may achieve.

Summary Historical and Pro Forma Financial Information of Pioneer

  Pioneer Consolidated Historical  Pioneer Pro Forma 
  Year Ended December 31,  For the Six Months
Ended June 30,
  For the
Year Ended
December 31,
  For the
Six Months
Ended
June 30,
 
  2012  2011  2010  2009  2008  2013  2012  2012  2013 
                 (Unaudited)  (Unaudited) 
  (in thousands, except per share amounts) 

Statement of Operations Data:

         

Revenues and other income:

         

Oil and gas (a)

 $2,811,660   $2,294,063   $1,718,297   $1,402,436   $1,893,361   $1,632,991   $1,360,693   $2,811,660   $1,632,991  

Interest and other

  28,310    66,880    56,972    101,589    49,402    20,474    21,194    28,310    20,474  

Derivative gains (losses), net (b)

  330,251    392,752    448,434    (195,557  (10,148  102,202    367,562    330,251    102,202  

Gain (loss) on disposition of assets, net

  58,087    (3,644  19,074    (774  (381  215,404    44,736    58,087    215,404  

Hurricane activity, net (b)

  —      1,454    138,918    (17,313  (12,150  —      —      —      —    
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total revenues (b)

  3,228,308    2,751,505    2,381,695    1,290,381    1,920,084    1,971,071    1,794,185    3,228,308    1,971,071  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Costs and expenses:

         

Oil and gas production

  635,644    447,142    364,764    345,885    363,795    348,628    281,862    635,644    348,628  

Production and ad valorem taxes

  187,757    147,664    112,141    98,371    164,417    108,134    90,291    187,757    108,134  

Depletion, depreciation and amortization

  810,191    578,268    499,856    564,149    446,951    480,353    382,339    810,191    480,353  

Impairment of oil and gas properties (c)

  532,589    354,408    —      21,091    89,753    —      444,880    532,589    —    

Exploration and abandonments

  206,291    121,320    189,597    79,095    191,799    51,600    90,465    206,291    51,600  

General and administrative

  248,282    193,215    164,332    130,863    131,834    130,405    118,024    248,282    130,405  

Accretion of discount on asset retirement obligations

  9,887    8,256    7,945    8,050    5,509    6,319    4,874    9,887    6,319  

Interest

  204,222    181,660    183,084    173,353    166,770    93,540    95,866    204,222    93,540  

Other

  113,388    63,166    78,404    94,702    114,436    40,060    54,258    113,388    40,060  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total costs and expenses (c)

  2,948,251    2,095,099    1,600,123    1,515,559    1,675,264    1,259,039    1,562,859    2,948,251    1,259,039  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Income (loss) from continuing operations before income taxes

  280,057    656,406    781,572    (225,178  244,820    712,032    231,326    280,057    712,032  

Income tax (provision) benefit

  (92,384  (197,644  (269,627  83,195    (99,994  (251,358  (72,617  (110,790  (259,416
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Income (loss) from continuing operations

  187,673    458,762    511,945    (141,983  144,826    460,674    158,709    169,267    452,616  

Income (loss) from discontinued operations, net of tax (d)

  55,149    423,152    134,050    99,716    86,829    (465  22,712    55,149    (465
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income (loss)

  242,822    881,914    645,995    (42,267  231,655    460,209    181,421    224,416    452,151  

Net (income) loss attributable to noncontrolling interests

  (50,537  (47,425  (40,787  (9,839  (21,635  (22,283  (37,194  590    99  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income (loss) attributable to common stockholders

 $192,285   $834,489   $605,208   $(52,106 $210,020   $437,926   $144,227   $225,006   $452,250  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

  Pioneer Consolidated Historical  Pioneer Pro Forma 
  Year Ended December 31,  For the Six Months
Ended June 30,
  For the
Year Ended
December 31,
  For the
Six Months
Ended
June 30,
 
  2012  2011  2010  2009  2008  2013  2012  2012  2013 
                 (Unaudited)  (Unaudited) 
  

(in thousands, except per share amounts)

 

Basic earnings per share:

         

Income (loss) from continuing operations attributable to common stockholders

 $1.10   $3.45   $4.00   $(1.33 $1.02   $3.24   $0.98   $1.32   $3.26  

Income (loss) from discontinued operations attributable to common stockholders

  0.44    3.56    1.14    0.87    0.74    —      0.18    0.43    —    
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income (loss) attributable to common stockholders

 $1.54   $7.01   $5.14   $(0.46 $1.76   $3.24   $1.16   $1.75   $3.26  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Diluted earnings per share:

         

Income (loss) from continuing operations attributable to common stockholders

 $1.07   $3.39   $3.96   $(1.33 $1.02   $3.19   $0.95   $1.28   $3.20  

Income (loss) from discontinued operations attributable to common stockholders

  0.43    3.49    1.12    0.87    0.74    —      0.18    0.42    —    
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income (loss) attributable to common stockholders

 $1.50   $6.88   $5.08   $(0.46 $1.76   $3.19   $1.13   $1.70   $3.20  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Weighted average shares outstanding:

         

Basic

  122,966    116,904    115,062    114,176    117,462    133,263    122,754    126,917    137,214  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Diluted

  126,320    119,215    116,330    114,176    117,947    135,762    125,772    130,271    139,713  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Dividends declared per share

 $0.08   $0.08   $0.08   $0.08   $0.30   $0.04   $0.04   $0.08   $0.04  

Amounts attributable to common stockholders:

         

Income (loss) from continuing operations

 $137,136   $411,337   $471,158   $(151,822 $123,191   $438,391   $121,515   $169,857   $452,715  

Income (loss) from discontinued operations, net of tax

  55,149    423,152    134,050    99,716    86,829    (465  22,712    55,149    (465
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income (loss)

 $192,285   $834,489   $605,208   $(52,106 $210,020   $437,926   $144,227   $225,006   $452,250  
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Balance Sheet Data (at period end):

         

Total assets

 $13,069,030   $11,447,156   $9,679,102   $8,867,265   $9,161,785   $14,162,587   $12,569,734    N/A   $14,158,587  

Long-term obligations

 $6,166,932   $4,726,507   $4,683,857   $4,653,043   $4,787,175   $5,502,302   $5,683,767    N/A   $5,337,776  

Total equity

 $5,867,308   $5,651,138   $4,226,025   $3,643,031   $3,679,613   $7,648,157   $5,756,976    N/A   $7,808,683  

(a)Pioneer’s oil and gas revenues for 2012, as compared to those of 2011, increased by $517.6 million (or 23%) due to increases in oil, NGL and gas sales volumes. See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, for discussions about oil and gas revenues and factors affecting the comparability of such revenues.
(b)Pioneer recognized $330.3 million of net derivative gains in its total revenues for 2012, including $65.4 million of noncash MTM losses, as compared to $392.8 million of net derivative gains during 2011, including $225.5 million of noncash MTM gains. See “Item 7A. Quantitative and Qualitative Disclosures About Market Risk” and Notes B and E of Notes to Consolidated Financial Statements included in “Item 8. Financial Statements and Supplementary Data” of Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, for information about Pioneer’s derivative contracts and associated accounting methods. Pioneer also recognized $138.9 million of net hurricane activity gains during 2010, primarily associated with East Cameron 322 insurance recoveries, and $17.3 million of net hurricane activity charges during 2009. See Note B of Notes to Consolidated Financial Statements included in “Item 8. Financial Statements and Supplementary Data” of Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, for more information about the East Cameron 322 reclamation and abandonment project.
(c)During 2012, Pioneer recorded $604.4 million of pre-tax noncash impairment and abandonment charges to reduce the carrying value of its Barnett Shale field assets. During 2011, Pioneer recorded an impairment charge of $354.4 million related to its Edwards and Austin Chalk net assets in South Texas. See Note D of Notes to the Consolidated Financial Statements included in “Item 8. Financial Statements and Supplementary Data” of Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012. During 2009 and 2008, Pioneer recorded impairment charges of $21.1 million and $89.8 million, respectively, to reduce its Uinta/Piceance field’s carrying value.
(d)During December 2011, Pioneer committed to a plan to divest Pioneer South Africa and in August 2012, Pioneer completed the sale of Pioneer South Africa for net cash proceeds of $15.9 million, resulting in a pre-tax gain of $28.6 million. During December 2010, Pioneer committed to a plan to sell Pioneer Tunisia and in February 2011 completed the sale of Pioneer’s share holdings in Pioneer Tunisia to an unaffiliated party for net cash proceeds of $802.5 million, excluding cash and cash equivalents sold, resulting in a pre-tax gain of $645.2 million. During 2010, Pioneer received $35.3 million of interest on excess royalties paid during the period from January 1, 2003, through December 31, 2005, on oil and gas production from its deepwater Gulf of Mexico properties, which were sold in 2006. During 2009, Pioneer recorded $119.3 million of pre-tax income for the recovery of the excess royalties previously mentioned and a $17.5 million pre-tax gain, primarily from the sale of substantially all of its Gulf of Mexico shelf properties. The results of operations of these properties, and certain other properties sold during the periods presented, are classified as discontinued operations in accordance with GAAP. See Note C of Notes to Consolidated Financial Statements included in “Item 8. Financial Statements and Supplementary Data” of Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, for more information about Pioneer’s discontinued operations.

Summary Historical Financial Information of Pioneer Southwest

   Pioneer Southwest Consolidated Historical (a) 
   For the Year Ended December 31,  For the Six Months
Ended June 30,
 
   2012  2011  2010  2009 (a)  2008 (a)  2013  2012 
                  (Unaudited) 
   (in thousands, except per unit amounts) 

Statement of Operations Data:

       

Revenues:

       

Oil and gas (b)(c)

  $185,848   $213,362   $183,758   $168,717   $193,394   $100,819   $93,270  

Interest and other

   —      2    —      210    192    —      —    

Derivative gains (losses), net (b)

   22,438    (11,725  (5,431  (78,265  —      4,150    31,768  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total revenues

   208,286    201,639    178,327    90,662    193,586    104,969    125,038  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Costs and expenses:

       

Oil and gas production (d)

   49,908    38,427    38,334    34,749    38,807    28,014    22,019  

Production and ad valorem taxes

   15,915    13,784    12,119    9,547    14,213    8,480    7,827  

Depletion, depreciation and amortization.

   22,044    15,534    12,577    13,016    11,582    14,825    9,818  

General and administrative

   7,416    7,222    6,330    4,790    6,227    3,741    3,660  

Accretion of discount on asset retirement obligations

   758    913    546    484    144    414    378  

Interest

   2,187    1,605    1,543    1,160    621    1,821    818  

Other, net

   1,158    —      —      549    890    —      748  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Total costs and expenses

   99,386    77,485    71,449    64,295    72,484    57,295    45,268  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Income before income taxes

   108,900    124,154    106,878    26,367    121,102    47,674    79,770  

Income tax provision

   (1,337  (1,338  (1,045  (46  (1,326  (586  (951
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income

  $107,563   $122,816   $105,833   $26,321   $119,776   $47,088   $78,819  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Allocation of net income:

        

Net income (loss) applicable to Pioneer Southwest’s predecessor

  $—     $—     $—     $(1,598 $59,038   $—     $—    

Net income applicable to Pioneer Southwest

   107,563    122,816    105,833    27,919    60,738    47,088    78,819  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income

  $107,563   $122,816   $105,833   $26,321   $119,776   $47,088   $78,819  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Allocation of net income applicable to Pioneer Southwest:

        

General partner’s interest

  $108   $123   $106   $28   $61   $47   $79  

Limited partners’ interest

   107,179    122,466    105,649    27,891    60,677    46,934    78,538  

Unvested participating securities’ interest

   276    227    78    —      —      107    202  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income applicable to Pioneer Southwest

  $107,563   $122,816   $105,833   $27,919   $60,738   $47,088   $78,819  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Net income per common unit — basic and diluted

  $3.00   $3.68   $3.19   $0.92   $2.02   $1.31   $2.20  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Weighted average common units outstanding — basic and diluted

   35,714    33,249    33,114    30,399    30,009    35,714    35,714  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Distributions declared per common unit

  $2.07   $2.03   $2.00   $2.00   $0.81   $1.04   $1.03  
  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Balance Sheet Data (at period end):

       

Total assets

  $430,889   $326,727   $280,060   $256,638   $367,164   $494,629   $374,770  

Long-term obligations

  $137,907   $58,768   $124,471   $103,810   $6,429   $188,203   $80,892  

Partners’ equity

  $261,633   $227,206   $134,745   $141,273   $347,831   $272,001   $269,614  

(a)In May 2008, Pioneer Southwest completed its initial public offering of 9,487,500 common units representing limited partnership interests (the “2008 Offering”). To effect the 2008 Offering, Pioneer contributed a portion of its ownership of a subsidiary that owned interests in oil and gas properties located in the Spraberry field and sold to Pioneer Southwest its remaining ownership interest in the subsidiary. During August 2009, Pioneer Southwest acquired certain additional oil and gas property interests in the Spraberry field from Pioneer that, together with the property interests conveyed to Pioneer Southwest in 2008 (the “Conveyed Interests”), represented transactions between entities under common control and are reported in Pioneer Southwest’s financial statements similar to a pooling of interests. Pioneer Southwest’s statements of operations for the years ended December 31, 2009 and 2008 include the results of operations of the Conveyed Interests (being the results of operations of the Pioneer Southwest predecessor) prior to their ownership by Pioneer Southwest.

(b)Effective February 1, 2009, Pioneer Southwest discontinued hedge accounting for its derivative contracts and began using the MTM method of accounting for derivatives. See “Item 7A. Quantitative and Qualitative Disclosures About Market Risk” and Notes B and D of Notes to Consolidated Financial Statements included in “Item 8. Financial Statements and Supplementary Data” in Pioneer Southwest’s Annual Report on Form 10-K for the year ended December 31, 2012, for information about Pioneer Southwest’s derivative contracts and associated accounting methods.
(c)Oil and gas revenues for 2012, 2011, 2010, 2009 and 2008 include net commodity hedge gains of $0, $36.5 million, $46.7 million, $71.0 million and $14.6 million, respectively.
(d)Historical oil and gas production costs associated with the Conveyed Interests includes the direct internal costs of Pioneer to operate the properties for periods presented prior to their ownership by Pioneer Southwest. The oil and gas production costs of the properties after they were acquired by Pioneer Southwest include COPAS fees.

Comparative Per Share and Per Unit Information

The following table sets forth (i) historical per share information of Pioneer, (ii) the unaudited pro forma per share information of Pioneer after giving pro forma effect to the proposed merger and the other merger transactions, including Pioneer’s issuance of 0.2325 of a share of Pioneer common stock for each outstanding Pioneer Southwest common unit (other than Pioneer Southwest common units owned by Pioneer USA), and (iii) the historical and equivalent pro forma per unit information for Pioneer Southwest.

You should read this information in conjunction with (i) the summary historical financial information included elsewhere in this proxy statement/prospectus, (ii) the historical consolidated financial statements of Pioneer and Pioneer Southwest and related notes that are incorporated by reference into this proxy statement/prospectus, and (iii) the “Unaudited Pro Forma Condensed Consolidated Financial Statements” and related notes included elsewhere in this proxy statement/prospectus. The unaudited pro forma per unit information does not purport to represent what the actual results of operations of Pioneer and Pioneer Southwest would have been had the proposed merger been completed in another period or to project Pioneer’s and Pioneer Southwest’s results of operations that may be achieved if the proposed merger is completed.

   Year Ended December 31, 2012 
   Pioneer   Pioneer Southwest 
   Historical   Pioneer
Pro Forma (1)
   Historical   Equivalent
Pro Forma (2)
 

Net income from continuing operations per share/unit:

        

Basic

  $1.10    $1.32    $3.00    $0.31  

Diluted

  $1.07    $1.28    $3.00    $0.30  

Cash dividends/distributions per share/unit

  $0.08    $0.08    $2.07    $0.02  

Book value per share/unit

  $46.45     N/A    $7.33     N/A  

   Six Months Ended June 30, 2013 
   Pioneer   Pioneer Southwest 
   Historical   Pioneer
Pro Forma (1)
   Historical   Equivalent
Pro Forma (2)
 

Net income from continuing operations per share/unit:

        

Basic

  $3.24    $3.26    $1.31    $0.76  

Diluted

  $3.19    $3.20    $1.31    $0.74  

Cash dividends/distributions per share/unit

  $0.04    $0.04    $1.04    $0.01  

Book value per share/unit

  $56.33    $55.89    $7.62    $12.99  

(1)Pioneer’s pro forma information includes the effect of the merger on the basis described in the notes to the “Unaudited Pro Forma Condensed Consolidated Financial Statements” included elsewhere in this proxy statement/prospectus.
(2)Pioneer Southwest’s equivalent pro forma earnings, book value and cash distribution amounts have been calculated by multiplying Pioneer’s pro forma per share amounts by the exchange ratio.

Market Prices and Dividend and Distribution Information

Shares of Pioneer common stock trade on the NYSE under the ticker symbol “PXD,” and Pioneer Southwest common units trade on the NYSE under the ticker symbol “PSE.” The following table sets forth, for the periods indicated, the range of high and low sales prices per share for Pioneer common stock and per Pioneer Southwest common unit on the NYSE composite tape, as well as information concerning cash dividends declared and paid on shares of Pioneer common stock and quarterly cash distributions declared and paid on Pioneer Southwest common units. The sales prices are as reported on the NYSE.

   Pioneer common stock   Pioneer Southwest common units 
   High   Low   Dividends   High   Low   Distributions(1) 

2010

          

First Quarter

  $56.88    $41.88    $0.04    $23.87    $20.72    $0.50  

Second Quarter

  $74.00    $54.72     —      $25.65    $20.93    $0.50  

Third Quarter

  $67.77    $54.89    $0.04    $28.33    $23.53    $0.50  

Fourth Quarter

  $88.00    $64.97     —      $30.42    $27.15    $0.50  

2011

          

First Quarter

  $104.29    $85.90    $0.04    $34.79    $28.22    $0.50  

Second Quarter

  $106.07    $82.41     —      $35.87    $26.21    $0.51  

Third Quarter

  $99.64    $65.73    $0.04    $32.72    $24.17    $0.51  

Fourth Quarter

  $97.10    $58.63     —      $31.73    $21.34    $0.51  

2012

          

First Quarter

  $119.19    $90.26    $0.04    $28.07    $25.43    $0.51  

Second Quarter

  $117.05    $77.41     —      $28.60    $24.59    $0.52  

Third Quarter

  $115.69    $82.18    $0.04    $26.82    $24.19    $0.52  

Fourth Quarter

  $110.67    $99.75     —      $26.98    $20.63    $0.52  

2013

          

First Quarter

  $133.68    $107.29    $0.04    $26.40    $21.58    $0.52  

Second Quarter

  $157.81    $109.18     —      $37.10    $24.31    $0.52  

Third Quarter (through September 12, 2013)

  $190.15    $146.19    $0.04    $44.45    $34.38     (2) 

(1)Represents cash distributions per Pioneer Southwest common unit declared with respect to the quarter presented and paid in the following quarter.
(2)Cash distributions with respect to the third quarter of 2013 are expected to be declared in October 2013 and would be paid in November 2013 if the merger is not consummated prior to the record date for such distribution.

The last reported sale price of Pioneer Southwest common units on the NYSE on May 6, 2013, the last trading day before Pioneer announced its proposal to acquire all of the Pioneer Southwest common units owned by the public, was $26.00. The last reported sale price of shares of Pioneer common stock on the NYSE on May 6, 2013, was $133.54. The last reported sale price of Pioneer Southwest common units on the NYSE on[], 2013, the latest practicable date prior to the printing of this proxy statement/prospectus, was $[]. The last reported sale price of shares of Pioneer common stock on the NYSE on[], 2013, was $[].

As of [], 2013, Pioneer had [] shares of common stock outstanding held by approximately [] holders of record.

As of [], 2013, the record date for the Pioneer Southwest special meeting, Pioneer Southwest had 35,713,700 outstanding common units held by approximately [] holders of record. Pioneer Southwest’s partnership agreement requires it to distribute all of its “available cash,” as determined by Pioneer Southwest GP in accordance with Pioneer Southwest’s partnership agreement, within 45 days after the end of each quarter.

Prior to the termination of the merger agreement or the effective time of the merger, it is expected that Pioneer Southwest unitholders will continue to receive quarterly distributions on their Pioneer Southwest common units consistent with past practice and not in excess of $0.52 per Pioneer Southwest common unit per quarter (which $0.52 per common unit is equivalent to the most recent distribution declared for the quarter ended June 30, 2013), provided that the record date for such quarterly distribution occurs prior to the effective time of the merger. If the merger agreement terminates, it is expected that distributions would continue, consistent with past practice and in accordance with the terms of Pioneer Southwest’s partnership agreement.

Pioneer’s Dividend Policy

During each of 2012, 2011 and 2010, the Pioneer Board declared semiannual dividends of $0.04 per share of Pioneer common stock. In the first and third quarters of 2013, the Pioneer Board declared semiannual dividends of $0.04 per share of Pioneer common stock. Any payment of future dividends will be at the discretion of the Pioneer Board and will depend on Pioneer’s earnings, financial condition, capital requirements, level of indebtedness, statutory and contractual restrictions applying to the payment of dividends, and other considerations that the Pioneer Board deems relevant.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This proxy statement/prospectus and the documents Pioneer and Pioneer Southwest have incorporated herein by reference contain statements that constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act that are not limited to historical facts, but reflect Pioneer’s and/or Pioneer Southwest’s current beliefs, expectations or intentions regarding future events. These forward-looking statements may be identified by the use of words such as “may,” “will,” “could,” “should,” “would,” “expect,” “plan,” “project,” “intend,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” “pursue,” “target,” “continue,” “contemplate” and similar expressions that contemplate future events. These statements appear in a number of places in this proxy statement/prospectus and in the documents incorporated by reference.

All statements other than statements of historical fact included or incorporated by reference in this proxy statement/prospectus, including statements regarding Pioneer’s and/or Pioneer Southwest’s financial position,Parsley’s business strategy, production and reserve growth and other plans and objectives for future operations or transactions, and including statements regarding the approval of the merger agreement and the merger transactions, the satisfaction of the closing conditions to the merger, the timing of the completion of the merger, expected U.S. federal income tax consequences, expectations and intentions regarding outstanding litigation, expectations with respect to the synergies, costs and other anticipated effects of the merger and expectations regarding Pioneer Southwest’s business and common units if the merger does not occur, are forward-looking statements.

Although Pioneer and Pioneer Southwest believe that such forward-looking statements are based on reasonable assumptions, neither Pioneer nor Pioneer Southwest gives any assurance that such expectations will in fact occur. All forward-looking statements involve significant risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements, many of which are generally outside the control of Pioneer and Pioneer Southwest and are difficult to predict. These risks and uncertainties also include those set forth under “Risk Factors,” beginning on page 35, as well as, among others, risks and uncertainties relating to:

the volatility of realized oil, gas and NGL prices and the volatility of the price of shares of Pioneer common stock;

the potential for impairment to the book value of Pioneer’s assets due to future declines in oil, gas and NGL prices;

uncertainties about the estimated quantities of oil, gas and NGL reserves, including uncertainties about the effects of the SEC’s rules governing reserve reporting;

the conditions of the capital markets, liquidity, general economic conditions, interest rates and the availability of credit to support Pioneer’s business requirements;

the discovery, estimation, development and replacement of oil, gas and NGL reserves;

Pioneer’s business and financial strategy;

Pioneer’s future operating results;

uncertainties and risks associated with horizontal drilling;

Pioneer’s drilling locations;

Pioneer’s drilling technology;

Pioneer’s cash flow, liquidity and financial position;

the timing and amount of Pioneer’s future production of oil, gas and NGLs;

Pioneer’s operating expenses, general and administrative costs and finding and development costs;

the availability of drilling and production equipment, labor and other services;

the marketing of oil, gas and NGLs;

competition in the oil, gas and NGLs industry;

the effect of weather and the occurrence of natural disasters such as fires, floods, hurricanes, earthquakes and other catastrophic events and natural disasters;

governmental regulation of the oil, gas and NGL industry;

environmental regulations;

the effect of legislation, regulatory initiatives and litigation related to climate change;

developments in oil-producing and gas-producing countries, including recent developments in the Middle East;

Pioneer’s strategic plans, objectives, expectations and intentions for future operations;

joint ventures;

the possibility that the merger transactions are not consummated in a timely manner or at all;

the diversion of management in connection with the merger and Pioneer’s ability to realize fully or at all the anticipated benefits of the merger; and

other financial, operational and legal risks and uncertainties detailed from time to time in Pioneer’s and Pioneer Southwest’s SEC filings.

Pioneer and Pioneer Southwest caution that the foregoing list of factors is not exclusive. Additional information concerning these and other risk factors is contained in Pioneer’s and Pioneer Southwest’s most recently filed Annual Reports on Form 10-K, subsequent Quarterly Reports on Form 10-Q, recent Current Reports on Form 8-K, and other SEC filings. In addition, Pioneer and Pioneer Southwest may be subject to currently unforeseen risks that may have a materially adverse effect on them. All subsequent written and oral forward-looking statements concerning Pioneer, Pioneer Southwest, the proposed merger or other matters and attributable to Pioneer or Pioneer Southwest or any person acting on their behalf are expressly qualified in their entirety by the cautionary statements above. The forward-looking statements speak only as of the date made and, other than as required by law, neither Pioneer nor Pioneer Southwest undertakes any obligation to update publicly or revise any of these forward-looking statements, whether as a result of new information, future events or otherwise.

RISK FACTORS

An investment in Pioneer common stock involves risks. You should consider carefully the following risk factors, together with all of the other information included in, or incorporated by reference into, this proxy statement/prospectus before deciding how to vote. In addition, you should read and consider the risks associated with the businesses of Pioneer and Pioneer Southwest. In particular, please read Part I, Item 1. “Business — Competition, Markets and Regulations” and Part I, Item 1A. “Risk Factors,” in the Annual Reports onForm 10-K for the year ended December 31, 2012, for each of Pioneer and Pioneer Southwest, and Part II, Item 1A. “Risk Factors,” in the Quarterly Reports on Form 10-Q for the quarter ended June 30, 2013, for each of Pioneer and Pioneer Southwest, incorporated by reference herein. This proxy statement/prospectus also contains forward-looking statements that involve risks and uncertainties. Please read “Special Note Regarding Forward-Looking Statements.”

Risks Related to the Merger

The exchange ratio is fixed and will not be adjusted in the event of any change in either the price of Pioneer common stock or the price of Pioneer Southwest common units.

If the merger is completed, each Pioneer Southwest common unit outstanding as of immediately prior to the effective time of the merger will be converted into the right to receive 0.2325 of a share of Pioneer common stock. This exchange ratio was fixed in the merger agreement and will not be adjusted for changes in the market price of either shares of Pioneer common stock or Pioneer Southwest common units. Changes in the price of shares of Pioneer common stock prior to the effective time will affect the market value of the merger consideration that Pioneer Southwest unitholders will receive in the merger.

The market price of shares of Pioneer common stock has historically varied greatly. For example, during the period beginning on January 1, 2012, and ending on September 12, 2013, shares of Pioneer common stock traded as high as $190.15 and as low as $77.41 per share. The market price of shares of Pioneer common stock is likely to continue to be volatile because of numerous factors, which may include:

changes in Pioneer’s drilling results and reserve growth outlook;

domestic and worldwide supply of and demand for oil, NGL and gas;

developments in the Middle East, which could affect the global supply of oil and significantly affect oil prices;

quarterly fluctuations in Pioneer’s operating results and those of Pioneer’s competitors;

changes in stock market analysts’ estimates of Pioneer’s future performance and the future performance of Pioneer’s competitors;

purchases and sales of a high volume of shares of Pioneer common stock by Pioneer stockholders;

events affecting other companies that the market deems comparable to Pioneer;

general conditions in the oil and gas industry in which Pioneer operates;

general economic conditions in the United States and other countries;

federal, state and local legislation, governmental regulation and legal developments in the industry in which Pioneer operates; and

changes in market assessments of the likelihood that the merger will be completed.

The price of a share of Pioneer common stock at the effective time of the merger may vary from its price on the date the merger agreement was executed or on the date of the Pioneer Southwest special meeting. As a result, the market value represented by the exchange ratio will also vary. For example, based on the range of closing prices of

shares of Pioneer common stock during the period from May 6, 2013, the last trading day before public announcement of the merger, through September 12, 2013, the final negotiated exchange ratio of 0.2325 represented a market value ranging from a low of $31.05 to a high of $43.43 for each Pioneer Southwest common unit.

If the price of shares of Pioneer common stock declines between the date the merger agreement was executed and the effective time of the merger, including for any of the reasons described above, Pioneer Southwest unitholders will receive shares of Pioneer common stock that have a market value upon completion of the merger that is less than the market value calculated pursuant to the exchange ratio on the date the merger agreement was executed. Therefore, while the number of shares of Pioneer common stock to be issued in the merger is fixed, Pioneer Southwest unitholders cannot be sure of the market value of the shares of Pioneer common stock they will receive upon completion of the merger or the market value of shares of Pioneer common stock at any time after the completion of the merger.

For historical and current market prices of shares of Pioneer common stock and Pioneer Southwest common units, please read “Summary — Market Prices and Dividend and Distribution Information” in this proxy statement/prospectus.

The merger transactions may not be consummated even if Pioneer Southwest unitholders approve the merger proposal.

The merger agreement contains conditions, some of which are beyond the parties’ control, that, if not satisfied or waived, may prevent, delay or otherwise result in the merger not occurring, even though Pioneer Southwest unitholders may have voted to approve the merger proposal. Pioneer and Pioneer Southwest cannot predict with certainty whether and when any of the conditions to the completion of the merger will be satisfied. Any delay in completing the merger could cause Pioneer not to realize, or delay the realization of, some or all of the benefits that Pioneer expects to achieve from the merger. In addition, Pioneer and Pioneer Southwest can agree not to consummate the merger even if the Pioneer Southwest unitholders approve the merger proposal and the conditions to the closing of the merger are otherwise satisfied.

Financial projections by Pioneer and Pioneer Southwest may not prove accurate.

In performing its financial analyses and rendering its opinion regarding the fairness, from a financial point of view, of the exchange ratio to the Pioneer Southwest unaffiliated unitholders, the financial advisor to the Pioneer Southwest Conflicts Committee reviewed and relied on, among other things, internal financial analyses and forecasts for Pioneer and Pioneer Southwest prepared by management. These financial projections include assumptions regarding future production, commodities pricing, operating cash flows, capital expenditures and distributable income of Pioneer Southwest. They speak only as of the date made and will not be updated. These financial projections were not provided with a view to public disclosure, are subject to significant economic, competitive, industry and other uncertainties, and may not be achieved in full, at all or within projected timeframes. The financial projections on which Pioneer Southwest’s financial advisor based its opinion could turn out to be inaccurate.

The pro forma financial statements are presented for illustrative purposes only and may not be an indication of Pioneer’s financial condition or results of operations following the merger.

The pro forma financial statements contained in this proxy statement/prospectus are presented for illustrative purposes only and may not be an indication of Pioneer’s financial condition or results of operations following the merger for several reasons. The pro forma financial statements have been derived from the historical financial statements of Pioneer and Pioneer Southwest, and adjustments and assumptions have been made after giving effect to the merger. The information upon which these adjustments and assumptions have been made is preliminary, and these kinds of adjustments and assumptions are difficult to make with accuracy. Moreover, the pro forma financial

statements do not reflect all costs that are expected to be incurred by Pioneer and Pioneer Southwest in connection with the merger. As a result, the actual financial condition and results of operations of Pioneer following the merger may not be consistent with, or evident from, these pro forma financial statements.

The assumptions used in preparing the pro forma financial information may not prove to be accurate, and other factors may affect Pioneer’s financial condition or results of operations following the merger. Any decline or potential decline in Pioneer’s financial condition or results of operations may cause significant variations in the stock price of Pioneer. Please read “Unaudited Pro Forma Condensed Consolidated Financial Statements” beginning on page F-2 of this proxy statement/prospectus.

While the merger agreement is in effect, Pioneer Southwest may lose opportunities to enter into different business combination transactions with other parties on more favorable terms, and may be limited in its ability to pursue other attractive business opportunities.

While the merger agreement is in effect, Pioneer Southwest is prohibited from, directly or indirectly, initiating, soliciting, knowingly encouraging or facilitating any inquiries regarding, or the making or submission of any proposal or offer that constitutes or may reasonably be expected to lead to, a proposal or offer to acquire 20% or more of the assets (by book value or monthly revenues) or common units of Pioneer Southwest, or a proposal or offer to enter into certain transactions such as a merger, consolidation, business combination, reorganization, liquidation, dissolution or similar transaction, with any other person, subject to limited exceptions. As a result of these provisions in the merger agreement, Pioneer Southwest may lose opportunities to enter into more favorable transactions.

In its written proposal of the merger delivered to the chairman of the Pioneer Southwest Conflicts Committee, Pioneer stated that it is interested only in acquiring the outstanding publicly held Pioneer Southwest common units and that it is not interested in selling the Pioneer Southwest common units held by Pioneer USA or Pioneer USA’s interest in Pioneer Southwest GP. Therefore, even if a proposal or offer to acquire the assets or common units of Pioneer Southwest were to materialize, Pioneer USA, which owns a majority of the outstanding Pioneer Southwest common units, would likely decide not to vote or tender its Pioneer Southwest common units in favor of any such transaction.

Pioneer Southwest has also agreed to refrain from taking certain actions with respect to its business and financial affairs pending completion of the merger or termination of the merger agreement. These restrictions and the non-solicitation provisions described above could be in effect for an extended period of time if completion of the merger is delayed and the parties agree to extend the March 17, 2014 termination date.

In addition to the economic costs associated with pursuing a merger, Pioneer Southwest GP’s management continues to devote substantial time and other resources to the proposed transaction and related matters, which could limit Pioneer Southwest’s ability to pursue other attractive business opportunities, including potential joint ventures, standalone projects and other transactions. If Pioneer Southwest is unable to pursue such other attractive business opportunities, its growth prospects and the long-term strategic position of its business could be adversely affected.

If the merger does not occur, Pioneer and Pioneer Southwest will not benefit from the expenses they have incurred in the pursuit of the merger.

The merger may not be completed. If the merger is not completed, Pioneer and Pioneer Southwest will have incurred substantial expenses for which no ultimate benefit will have been received by either company. The parties currently expect to incur merger-related expenses of approximately $4.0 million, consisting of investment banking, engineering, legal and accounting fees, and financial printing and other related charges, much of which may be incurred even if the merger is not completed. In addition, if the merger agreement is terminated under specified circumstances, either Pioneer or Pioneer Southwest will be required to pay certain expenses of the other party. See “The Merger Agreement — Fees and Expenses.”

Pioneer, Pioneer Southwest GP and their directors and officers may have interests that differ from your interests, and these interests may have influenced their decision to propose and to approve the merger agreement and the merger transactions.

The nature of the respective businesses of Pioneer Southwest and Pioneer and its affiliates may give rise to conflicts of interest between Pioneer Southwest and Pioneer. The interests of Pioneer, Pioneer Southwest GP, and their directors and officers may differ from your interests as a result of the relationships among them. A conflict could be perceived to exist, for example, in connection with the number of shares of Pioneer common stock offered as the merger consideration, particularly where three of the seven directors on the Pioneer Southwest GP Board are executive officers of Pioneer. Unlike the strict duty of a fiduciary who must act solely in the best interests of the beneficiary in resolving conflicts of interest, Pioneer Southwest’s partnership agreement permits Pioneer Southwest GP to consider the relative interest of each party to a potential conflict situation and the benefits and burdens relating to such interests which, under certain circumstances, could include the interest of Pioneer Southwest GP and its affiliates.

Furthermore, Pioneer Southwest’s partnership agreement provides that, in the absence of bad faith by Pioneer Southwest GP, any action taken by Pioneer Southwest GP shall not constitute a breach of the Pioneer Southwest partnership agreement or a breach of any standard of care or duty otherwise imposed by Delaware law.

In addition, certain directors and executive officers of Pioneer are also directors and executive officers of Pioneer Southwest GP. For example, Scott D. Sheffield is a director of both Pioneer and Pioneer Southwest GP. The following executive officers hold positions at both Pioneer and Pioneer Southwest GP:

Officer

Pioneer

Pioneer Southwest

Scott D. Sheffield

Chairman of the Board and Chief Executive OfficerChairman of the Board and
Chief Executive Officer

Timothy L. Dove

President and Chief Operating Officer, DirectorPresident and Chief Operating
Officer

Mark S. Berg

Executive Vice President and General CounselExecutive Vice President and
General Counsel

Chris J. Cheatwood

Executive Vice President, Business Development and GeoscienceExecutive Vice President,
Business Development and
Geoscience

Richard P. Dealy

Executive Vice President and Chief Financial OfficerExecutive Vice President, Chief
Financial Officer and Treasurer,
Director

Danny L. Kellum

Executive Vice President, Permian OperationsExecutive Vice President,
Permian Operations, Director

Frank W. Hall

Vice President and Chief Accounting OfficerVice President and Chief
Accounting Officer

In considering the recommendation of the Pioneer Southwest GP board to approve the merger proposal, you should consider that the directors and executive officers of Pioneer and Pioneer Southwest GP may have interests that differ from, or are in addition to, the interests of Pioneer Southwest unitholders generally. These interests include the following:

all of the directors and officers of Pioneer Southwest GP have the right to indemnification under the organizational documents of Pioneer Southwest GP, the Pioneer Southwest partnership agreement and the merger agreement, and the four independent directors of Pioneer Southwest GP have the right to indemnification under indemnification agreements with Pioneer Southwest. In addition, all of the directors of Pioneer and all of the officers of Pioneer Southwest GP have the right to indemnification under the organizational documents of Pioneer or Pioneer USA and indemnification agreements with Pioneer or Pioneer USA;

each of the officers that are officers of both Pioneer and Pioneer Southwest GP are expected to continue to serve as officers of Pioneer following the merger;

each outstanding phantom unit of Pioneer Southwest held by officers of Pioneer Southwest GP will be converted in the merger into an equivalent restricted stock unit of Pioneer common stock, with adjustments in the number of shares to reflect the exchange ratio, but otherwise on the same terms and conditions as were applicable prior to the merger;

three of the seven directors of Pioneer Southwest GP are executive officers of both Pioneer and Pioneer Southwest GP, and one of these three directors, Scott D. Sheffield, is also the Chairman of the Board of Pioneer. All three of these directors own shares of Pioneer common stock and Pioneer Southwest common units as well as phantom units of Pioneer Southwest; and

certain other Pioneer officers and Pioneer Southwest GP officers own shares of Pioneer common stock and Pioneer Southwest common units, as well as equity-based benefit plan awards related to Pioneer common stock and Pioneer Southwest common units.

See “Certain Relationships; Interests of Certain Persons in the Merger — Interests of Directors and Executive Officers in the Merger.”

Lawsuits have been filed against Pioneer, Pioneer USA, Pioneer Southwest, Pioneer Southwest GP, and the directors and certain officers of Pioneer Southwest GP challenging the merger, and any injunctive relief or adverse judgment for monetary damages could prevent the merger from occurring or could have a material adverse effect on Pioneer following the merger.

Pioneer, Pioneer USA, Pioneer Southwest, Pioneer Southwest GP and the directors and certain officers of Pioneer Southwest GP are named defendants in purported class action petitions and derivative suits brought by purported Pioneer Southwest unitholders in Dallas County, Texas, generally alleging claims of breach of duties under Pioneer Southwest’s partnership agreement, breach of the implied covenant of good faith and fair dealing in connection with the merger transactions, self-dealing and aiding and abetting arising out of the defendants’ pursuit of the merger by way of an allegedly conflicted and unfair process. Similar claims have been filed in the United States District Court for the Northern District of Texas. The plaintiffs seek to enjoin the defendants from proceeding with or consummating the merger and, to the extent that the merger is implemented before relief is granted, plaintiffs seek to have the merger rescinded. The plaintiffs also seek money damages and attorneys’ fees.

One of the conditions to the completion of the merger is that no order, decree or injunction of any court or agency of competent jurisdiction shall be in effect, and no law shall have been enacted or adopted, that enjoins, prohibits or makes illegal consummation of any of the transactions contemplated by the merger agreement. A preliminary injunction could delay or jeopardize the completion of the merger, and an adverse judgment granting permanent injunctive relief could indefinitely enjoin completion of the merger. An adverse judgment for rescission or for monetary damages could have a material adverse effect on Pioneer following the merger.

Because Pioneer USA owns 52.4% of the outstanding Pioneer Southwest common units and has agreed to vote its units to approve the merger proposal, a vote in favor of the merger proposal at the Pioneer Southwest special meeting is assured regardless of how the Pioneer Southwest unaffiliated unitholders vote.

Regardless of how the Pioneer Southwest unaffiliated unitholders vote at the Pioneer Southwest special meeting, a vote to approve the merger proposal is assured because Pioneer USA, which owns 52.4% of the outstanding Pioneer Southwest common units, has agreed to vote its units in favor of the merger proposal. Consequently, Pioneer Southwest unaffiliated unitholders have no control over whether the merger proposal is approved at the Pioneer Southwest special meeting.

Risks Related to Pioneer’s Business After the Merger

Following the merger, Pioneer may fail to develop Pioneer Southwest’s leasehold acreage, including the potential horizontal locations Pioneer has identified on Pioneer Southwest’s leasehold acreage, and any such failure could have an adverse effect on Pioneer’s operations and the price of shares of Pioneer common stock.

There has been a recent trend in Pioneer Southwest’s operating area toward horizontal drilling, which requires greater amounts of capital than vertical drilling but potentially provides higher production and investment returns. Pioneer Southwest’s leasehold acreage and wellbore assignment rights (“Virtual 40s”) are located in good potential resource areas, and Pioneer has identified 125 horizontal locations on Pioneer Southwest’s leasehold acreage with drillable lateral lengths in excess of 5,000 feet as having a potentially attractive value based on geologic analysis and Pioneer’s limited drilling results to date. Under current conditions, Pioneer Southwest would likely be unable to develop certain portions of its remaining leasehold acreage (such acreage, the “stranded leasehold acreage”) and its Virtual 40s through horizontal drilling due to its stranded leasehold acreage position being non-contiguous and not of sufficient size to permit drilling of horizontal wells of sufficient length to be economic. Such stranded leasehold acreage and Virtual 40s are contiguous with Pioneer leasehold acreage and could potentially be developed by Pioneer following the merger. However, there are significant risks and uncertainties associated with horizontal drilling. Following the merger, Pioneer may not be successful in developing the potential horizontal locations it has identified on Pioneer Southwest’s leasehold acreage or the Virtual 40s. If Pioneer is unable to develop these locations for horizontal drilling or otherwise, it could have an adverse effect on Pioneer’s operations, financial results and the price of its common stock.

Risks Related to Pioneer’s Common Stock

There will be material differences between the current rights of Pioneer Southwest unitholders and the rights they can expect to have as Pioneer stockholders.

Pioneer Southwest unitholders will receive shares of Pioneer common stock in the merger and will become Pioneer stockholders. As Pioneer stockholders, their rights as stockholders will be governed by Pioneer’s certificate of incorporation and bylaws. In addition, whereas Pioneer Southwest is a Delaware limited partnership governed by the Delaware Revised Uniform Limited Partnership Act, Pioneer is a Delaware corporation governed by the Delaware General Corporation Law. As a result, there will be material differences between the current rights of Pioneer Southwest unitholders and the rights they can expect to have as Pioneer stockholders, as well as differences in how stockholders and unitholders are taxed. For example, profits at Pioneer Southwest flow through Pioneer Southwest and are taxed once at the unitholder level, regardless of whether distributions are made to Pioneer Southwest unitholders. Profits of Pioneer are subject to tax at the corporation level and potentially again, if and when distributed to Pioneer stockholders, at the stockholder level. For a discussion of other material differences, see “Comparison of the Rights of Pioneer Stockholders and Pioneer Southwest Unitholders.”

Although the Pioneer Board has declared semiannual dividends on Pioneer’s common stock in recent years, Pioneer may not pay cash dividends in the future.

Unlike Pioneer Southwest, Pioneer is not required to distribute its available cash to stockholders. Although Pioneer has paid cash dividends on its common stock in the past, the Pioneer Board may not declare dividends in the future or may reduce the amount of dividends paid in the future. Any payment of future dividends will be at the discretion of the Pioneer Board and will depend on Pioneer’s earnings, financial condition, capital requirements, level of indebtedness, statutory and contractual restrictions applying to the payment of dividends and other considerations that the Pioneer Board deems relevant. Should the Pioneer Board continue to declare dividends on the Pioneer common stock, the dividend yield of the Pioneer common stock has historically been a fraction of the distribution yield of the Pioneer Southwest common units.

Some provisions of Pioneer’s charter documents and Delaware law may inhibit a takeover, which could limit the price investors might be willing to pay in the future for shares of Pioneer common stock.

Some provisions in Pioneer’s certificate of incorporation and bylaws may have the effect of delaying, discouraging or preventing an acquisition of Pioneer or a merger in which Pioneer is not the surviving company and may otherwise prevent or slow changes in the Pioneer Board and management. In addition, because Pioneer is incorporated in Delaware, it is governed by the provisions of Section 203 of the Delaware General Corporation Law, which prohibits certain business combinations between it and “interested stockholders” (generally a stockholder owning or controlling 15% of more of Pioneer’s capital stock entitled to vote generally in the election of directors) for three years following the time at which such stockholder became an interested stockholder unless specified conditions, are met. These provisions could discourage an acquisition of Pioneer or other change in control transaction, whether or not it is desired or beneficial to Pioneer stockholders, and thereby negatively affect the price that investors might be willing to pay in the future for shares of Pioneer common stock. In addition, to the extent that these provisions discourage an acquisition of Pioneer or other change in control transaction, they could deprive stockholders of opportunities to realize takeover premiums for their shares of Pioneer common stock.

There may be future dilution of Pioneer common stock, which could adversely affect the market price of shares of Pioneer common stock.

Pioneer is not restricted from issuing additional shares of Pioneer common stock. In the future, Pioneer may issue shares of Pioneer common stock to raise cash for future drilling activities, acquisitions or other purposes. Pioneer may also acquire interests in other companies by using a combination of cash and shares of Pioneer common stock or just shares of Pioneer common stock. Pioneer may also issue securities convertible into, or exchangeable for, or that represent the right to receive, shares of Pioneer common stock. Any of these events may dilute the ownership interests of current Pioneer stockholders in Pioneer, reduce Pioneer’s earnings per share and have an adverse effect on the price of shares of Pioneer common stock.

Sales of a substantial amount of shares of Pioneer common stock in the public market could adversely affect the market price of shares of Pioneer common stock.

Sales of a substantial amount of shares of Pioneer common stock in the public market, or the perception that these sales may occur, could reduce the market price of shares of Pioneer common stock. Because Pioneer common stock is not primarily a yield instrument and because the receipt of the merger consideration will be taxable for U.S. federal income tax purposes, a large number of Pioneer Southwest unitholders may choose to sell the shares of Pioneer common stock they receive promptly following the merger. Such sales could have a material adverse effect on the price of Pioneer common stock.

Risks Related to Pioneer Southwest’s Business and Common Units if the Merger Does Not Occur

If the merger does not occur, it is likely that Pioneer Southwest will not be able to fully develop all of its leasehold acreage for horizontal drilling, which could have a material adverse effect on its results of operations and on the value of its leasehold acreage.

If the merger does not occur, Pioneer Southwest will continue to operate its business as it has in the past. Under current conditions, Pioneer Southwest would likely be unable to fully develop all of its leasehold acreage through horizontal drilling. The potential for Pioneer Southwest to develop all of its acreage through horizontal drilling is limited by the non-contiguous nature of some of Pioneer Southwest’s acreage and by Pioneer Southwest’s rights across some of its acreage. Additionally, a portion of Pioneer Southwest’s acreage is not of sufficient size to permit drilling of horizontal wells of sufficient length to be economic. Furthermore, the potential for horizontal drilling locations can be adversely affected by the location of existing or future vertical wells, which may limit or eliminate Pioneer Southwest’s ability to drill a horizontal well. Such a failure to develop its acreage through horizontal drilling could have a material adverse effect on Pioneer Southwest’s

results of operations and could materially reduce the amount of cash that is available to Pioneer Southwest for distributions. In addition, the continuation of Pioneer Southwest’s vertical drilling program would likely reduce or eliminate the horizontal potential that may exist on Pioneer Southwest’s leasehold acreage as a result of increasing the density of vertical wells, which could result in future diminution in the value of Pioneer Southwest’s leasehold acreage.

If the merger does not occur, Pioneer Southwest may be unable to maintain current levels of distributions on its common units without incurring additional debt.

If the merger agreement is terminated and the merger does not occur, Pioneer Southwest expects that quarterly distributions of available cash will continue, consistent with past practice and in accordance with the terms of Pioneer Southwest’s partnership agreement. In the future, because Pioneer Southwest’s proved reserves and production decline continually over time, Pioneer Southwest’s ability to maintain current levels of quarterly cash distributions will depend on its ability to mitigate these declines through drilling initiatives, production enhancement, and/or acquisitions of income producing assets that provide adequate cash margins, as well as on the prices of oil, NGLs and gas and on the availability of capital, such as Pioneer Southwest’s credit facility or future private and public equity and debt offerings. At current quoted forward NYMEX prices for oil, NGLs and gas and current acquisition and drilling costs, there is significant uncertainty regarding Pioneer Southwest’s ability to maintain or increase its levels of quarterly distributions in the long term. Furthermore, Pioneer Southwest may be unable to maintain current levels of distributions without incurring significant additional debt.

Tax Risks Related to the Merger

In addition to reading the following risk factor, you are urged to read “Material U.S. Federal Income Tax Consequences of the Merger” beginning on page 129 for a more complete discussion of the expected material U.S. federal income tax consequences of the merger.

The receipt of the merger consideration will be taxable for U.S. federal income tax purposes, and Pioneer Southwest unitholders could recognize tax gain or have tax liability in excess of the merger consideration received.

Pioneer Southwest unitholders generally will recognize gain with respect to the exchange of Pioneer Southwest common units for shares of Pioneer common stock in the merger in an amount equal to the excess of (1) each Pioneer Southwest unitholder’s “amount realized” for U.S. federal income tax purposes, which equals the sum of the fair market value of the shares of Pioneer common stock, plus the unitholder’s allocated share of Pioneer Southwest’s pre-merger liabilities (it being understood that no Pioneer Southwest unitholder bears any personal responsibility or liability in respect of such allocated liabilities), over (2) such Pioneer Southwest unitholder’s aggregate adjusted tax basis in Pioneer Southwest common units (including basis attributable to the unitholder’s share of Pioneer Southwest’s pre-merger liabilities). Pioneer Southwest unitholders generally will recognize loss to the extent that the amount of their basis described in clause (2) above exceeds the amount realized described in clause (1) above.

Because the “amount realized” includes the amount of Pioneer Southwest’s liabilities allocated to each Pioneer Southwest unitholder immediately prior to the merger, it is possible that the amount of gain Pioneer Southwest unitholders recognize, or even their resulting tax liability, could exceed the fair market value of the shares of Pioneer common stock. The application of other complicated tax rules also may give rise to adverse tax consequences to Pioneer Southwest unitholders. Because the tax consequences of the merger to a Pioneer Southwest unitholder will depend on the unitholder’s particular factual circumstances and are uncertain in some material respects, Pioneer Southwest unitholders should consult their tax advisors regarding the potential tax consequences of exchanging Pioneer Southwest common units for shares of Pioneer common stock in the merger.

THE PIONEER SOUTHWEST SPECIAL MEETING

General Information About the Pioneer Southwest Special Meeting

Time, Place and Date

The special meeting of Pioneer Southwest unitholders will be held at the offices of Pioneer Southwest, 5205 N. O’Connor Blvd., Suite 200, Irving, Texas 75039, on [], 2013, at [], local time.

Purposes

The purposes of the special meeting are:

to consider and vote on the merger proposal; and

to consider and vote on the adjournment proposal.

Only Pioneer Southwest GP can introduce new matters for a vote at the Pioneer Southwest special meeting. At this time, Pioneer Southwest GP does not plan on bringing any additional matters before the Pioneer Southwest special meeting for a vote.

Quorum

The presence in person or by proxy at the Pioneer Southwest special meeting of the holders of a majority of outstanding Pioneer Southwest common units on the record date will constitute a quorum and will permit Pioneer Southwest to conduct the proposed business at the Pioneer Southwest special meeting. As a result of Pioneer’s ownership in Pioneer Southwest, and Pioneer’s obligation to vote its Pioneer Southwest common units at the meeting under the voting agreement, a quorum is guaranteed to exist at the meeting. Units held in your name will be counted as present at the special meeting if you:

are present in person at the meeting; or

have submitted a properly executed proxy card or properly submitted your proxy by telephone or internet.

Proxies received but marked as abstentions will be counted as units that are present and entitled to vote for purposes of determining the presence of a quorum. Because the only proposals for consideration at the Pioneer Southwest special meeting are non-discretionary proposals, it is not expected that there will be any broker non-votes at the Pioneer Southwest special meeting. However, if there are any broker non-votes, they will be counted as units that are present and entitled to vote for purposes of determining the presence of a quorum.

Record Date

The record date for the Pioneer Southwest special meeting is the close of business on [], 2013.

Units Entitled to Vote

Pioneer Southwest unitholders may vote at the special meeting if they owned Pioneer Southwest common units at the close of business on the record date. Pioneer Southwest unitholders may cast one vote for each Pioneer Southwest common unit owned on the record date.

Votes Required

The merger proposal will be approved if the holders, as of the record date of the Pioneer Southwest special meeting, of a majority of the outstanding Pioneer Southwest common units vote in favor of the merger proposal at the Pioneer Southwest special meeting. Failures to vote, abstentions and broker non-votes (if any) will have the same effect as a vote against the merger proposal. Pursuant to the voting agreement discussed elsewhere in the proxy statement/prospectus, Pioneer, Pioneer USA and MergerCo have agreed to vote the Pioneer Southwest

common units owned by them in favor of the merger proposal, including the 18,721,200 Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4% of the outstanding Pioneer Southwest common units and therefore constitute a sufficient number of Pioneer Southwest common units to approve the merger proposal at the Pioneer Southwest special meeting.

The adjournment proposal will be approved if the holders, as of the record date of the Pioneer Southwest special meeting, of a majority of the outstanding Pioneer Southwest common units vote in favor of the adjournment proposal at the Pioneer Southwest special meeting. Failures to vote, abstentions and broker non-votes (if any) will have the same effect as a vote against this proposal.

Of the Pioneer Southwest common units entitled to vote on the proposals at the Pioneer Southwest special meeting, 0.5% of such Pioneer Southwest common units are held, and eligible to be voted, by certain executive officers and directors, and their affiliates, of Pioneer or Pioneer Southwest (not including the parties to the voting agreement).

Common Units Outstanding

As of the record date, there were 35,713,700 Pioneer Southwest common units outstanding held by approximately [] holders of record.

Voting Procedures

Voting by Pioneer Southwest Unitholders of Record

Pioneer Southwest unitholders who hold units in their own name may vote using any of the following methods:

call the toll-free telephone number listed on your proxy card and follow the recorded instructions;

go to the internet website listed on your proxy card and follow the instructions provided;

complete, sign and mail your proxy card in the postage-paid envelope; or

attend the Pioneer Southwest special meeting and vote in person.

If you have timely and properly submitted your proxy, clearly indicated your vote and have not revoked your proxy, your Pioneer Southwest common units will be voted as indicated. If you have timely and properly submitted your proxy but have not clearly indicated your vote, your Pioneer Southwest common units will be voted FOR approval of the merger proposal and the adjournment proposal.

Revocation

If you hold your Pioneer Southwest common units in your own name, you may revoke your proxy at any time prior to its exercise by:

giving written notice of revocation to the secretary of Pioneer Southwest GP at or before the special meeting;

appearing and voting in person at the special meeting;

timely submitting a later dated proxy by telephone or internet no later than 5:00 p.m. Dallas, Texas time on the day before the date of the Pioneer Southwest special meeting; or

properly completing and executing a later dated proxy and delivering it to the secretary of Pioneer Southwest GP at or before the Pioneer Southwest special meeting.

Your presence without voting at the special meeting will not automatically revoke your proxy.

Units Held in Street Name

If you hold Pioneer Southwest common units in the name of a bank, broker or other nominee, you should follow the instructions provided by your bank, broker or nominee when voting your Pioneer Southwest common units or when granting or revoking a proxy.

Absent specific instructions from you, your broker is not allowed to vote your common units on any proposal on which your broker, bank or other nominee does not have discretionary authority. The only proposals for consideration at the Pioneer Southwest special meeting are the merger proposal and the adjournment proposal, which are matters for which brokers and other nominees do not have discretionary authority to vote. To instruct your broker or other nominee how to vote, you should follow the directions that your broker or other nominee provides to you.

Please note that you may not vote your Pioneer Southwest common units held in “street name” by returning a proxy card directly to Pioneer Southwest or by voting in person at the Pioneer Southwest special meeting unless you provide a “legal proxy,” which you must obtain from your broker or other nominee. If you do not instruct your broker or other nominee on how to vote your Pioneer Southwest common units, your broker or other nominee may not vote your Pioneer Southwest common units, which will have the same effect as a vote against the merger proposal and the adjournment proposal. You should therefore provide your broker or other nominee with instructions as to how to vote your Pioneer Southwest common units.

Validity

The inspector of election will determine all questions as to the validity, form, eligibility (including time of receipt) and acceptance of proxies. Its determination will be final and binding. The Pioneer Southwest GP Board has the right to waive any irregularities or conditions as to the manner of voting. Pioneer Southwest may accept your proxy by any form of communication permitted by Delaware law so long as Pioneer Southwest is reasonably assured that the communication is authorized by you.

Solicitation of Proxies

The accompanying proxy is being solicited by Pioneer Southwest GP on behalf of the Pioneer Southwest GP Board. The expenses of such solicitation, including the expenses of preparing, printing and mailing the proxy and materials used in the solicitation, will be borne 50% by Pioneer and 50% by Pioneer Southwest.

D.F. King & Co., Inc. has been retained by Pioneer Southwest to aid in the solicitation of proxies for a fee of $6,500, a per call fee and the reimbursement of out-of-pocket expenses. In addition to the mailing of this proxy statement/prospectus, proxies may also be solicited from Pioneer Southwest unitholders by personal interview, telephone, fax or other electronic means by directors and officers of Pioneer Southwest GP and employees of Pioneer and its affiliates who provide services to Pioneer Southwest, who will not receive additional compensation for performing that service. Arrangements also will be made with brokerage houses and other custodians, nominees and fiduciaries for the forwarding of proxy materials to the beneficial owners of Pioneer Southwest common units held by those persons, and Pioneer Southwest will reimburse them for any reasonable expenses that they incur.

THE MERGER

The discussion in this proxy statement/prospectus of the merger and the material terms of the merger agreement is subject to, and is qualified in its entirety by reference to, the merger agreement, a copy of which is attached as Annex A to this proxy statement/prospectus and incorporated by reference herein.

General Description of the Merger

Pursuant to the merger agreement, at the effective time of the merger, MergerCo, a direct wholly-owned subsidiary of Pioneer, will merge with and into Pioneer Southwest with Pioneer Southwest surviving the merger as an indirect wholly-owned subsidiary of Pioneer, and each outstanding Pioneer Southwest common unit, other than those Pioneer Southwest common units owned by Pioneer USA, will be cancelled and converted into the right to receive 0.2325 of a share of Pioneer common stock. Applying the original exchange ratio proposed by Pioneer of 0.2234, the merger consideration originally proposed represented a 15% premium to the closing price of the Pioneer Southwest common units based on the closing prices of the Pioneer Southwest common units and shares of Pioneer common stock on May 6, 2013, the last trading day before Pioneer announced its proposal to acquire all of the Pioneer Southwest common units owned by the public. Applying the final exchange ratio agreed upon by the parties of 0.2325, the merger consideration represents a 58% premium to the closing price of the Pioneer Southwest common units based on the closing price of the Pioneer Southwest common units on May 6, 2013, and the closing price of shares of Pioneer common stock on August 8, 2013, the day before the merger agreement was signed.

If the exchange ratio would result in a Pioneer Southwest unitholder’s being entitled to receive a fraction of a share of Pioneer common stock, that Pioneer Southwest unitholder will not receive any fractional share of Pioneer common stock. In lieu of receiving any fractional share of Pioneer common stock to which any Pioneer Southwest unitholder would otherwise have been entitled, after aggregating all fractions of shares to which such unitholder would be entitled, any fractional share will be rounded up to a whole share of Pioneer common stock.

Once the merger is completed, former Pioneer Southwest unitholders who surrender their Pioneer Southwest common units in accordance with the merger agreement will be eligible, in their capacity as Pioneer stockholders, to receive dividends declared by the Pioneer Board, if any, after the effective time of the merger on Pioneer common stock. For a description of Pioneer’s dividend policy, please read “Summary — Market Prices and Dividend and Distribution Information — Pioneer’s Dividend Policy.”

Based on the 16,992,500 Pioneer Southwest common units outstanding as of September 12, 2013, and eligible to be converted into shares of Pioneer common stock pursuant to the merger agreement (which number does not include those owned by Pioneer USA), and without giving effect to rounding of fractional shares, Pioneer expects to issue approximately 3,950,757 shares of Pioneer common stock in connection with the merger. This number will represent approximately 3% of Pioneer’s outstanding shares of common stock after the merger, based on 138,864,386 shares of Pioneer common stock outstanding as of September 12, 2013.

The directors and executive officers of each of Pioneer and Pioneer Southwest GP prior to the merger are expected to continue as the directors and executive officers of Pioneer and Pioneer Southwest GP, respectively, following the merger, with the exception of the four independent directors of Pioneer Southwest GP who are expected to resign following the merger. Information about the current Pioneer directors and executive officers can be found in Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, and Pioneer’s proxy statement for its annual meeting of stockholders in 2013. Pioneer’s Annual Report on Form 10-K is incorporated by reference into this proxy statement/prospectus. Information about the current Pioneer Southwest GP directors and executive officers can be found in Pioneer Southwest’s Annual Report on Form 10-K for the year ended December 31, 2012, which is incorporated by reference into this proxy statement/prospectus. See “Where You Can Find More Information.”

Background of the Merger

Pioneer Southwest Formed

Pioneer Southwest is a master limited partnership formed by Pioneer in June 2007 to own and acquire oil and gas properties in Texas and eight counties in the southeast region of New Mexico. Pioneer Southwest completed an initial public offering of 9,487,500 Pioneer Southwest common units on May 6, 2008. Before the initial public offering, Pioneer owned all of the general and limited partner interests in Pioneer Southwest. Prior to the initial public offering, Pioneer contributed certain oil and gas properties located in the Spraberry field to Pioneer Southwest by way of the transfer to Pioneer Southwest of all of the membership interests in an operating entity holding such oil and gas assets. The contributed assets consisted only of wellbore assignment rights and certain limited contractual rights to develop the acreage around those wellbores, referred to herein as Pioneer Southwest’s “Virtual 40s.” Specifically, the rights Pioneer Southwest received were limited to (1) only those rights that were necessary to produce hydrocarbons from the particular wellbores, but not the right to drill additional wells or to extend the horizontal reach of the wellbore interests (often referred to as wellbore interests), and (2) a contractual right to propose wells within the same 40 acre section of land, or “Virtual 40,” in which the parent wellbore is located, limited to the interval from the surface to the depth of the deepest producing perforation in the parent wellbore, and to participate in wells proposed by Pioneer, if any, in the Virtual 40; provided that, if Pioneer’s proposed well would be drilled to depths deeper than the parent wellbore, Pioneer Southwest would be required to pay the fair market value for its pro rata share of the interests associated with those greater depths.

At the time of Pioneer Southwest’s initial public offering in 2008, the strategy for Pioneer Southwest was to make accretive acquisitions of oil and gas assets so as to allow Pioneer Southwest to maintain its quarterly cash distributions and, over time, increase distributions. At the time, Pioneer expected that, depending on economic conditions over time, Pioneer Southwest could grow through:

acquisitions of producing oil and gas assets from Pioneer; and

acquisitions of producing oil and gas assets from third parties, potentially with Pioneer as a joint purchaser of producing or nonproducing properties.

The expectation was that Pioneer Southwest would have a cost of capital advantage relative to its corporate competitors and a technical advantage due to the scale of Pioneer’s operations. Pioneer Southwest planned to reserve 25% of its cash flow to make acquisitions and maintain access to a revolving credit facility. A significant part of the strategy for Pioneer Southwest was to maintain a balanced capital structure to ensure financial flexibility for acquisitions and to mitigate commodity price risk through commodity derivatives.

From the time of the initial public offering in 2008 through August 2009, Pioneer evaluated various potential acquisitions of producing properties or other assets on behalf of Pioneer Southwest, but no acquisitions were consummated during such time.

Pioneer Southwest Seeks Growth Through Drilling Program

In August 2009, the Pioneer Southwest GP Board, with the approval of the Pioneer Southwest Conflicts Committee, determined that it would be in Pioneer Southwest’s best interests to acquire oil and gas properties from Pioneer that included undeveloped properties, as well as additional interests in producing properties, and commence a drilling program to supplement Pioneer Southwest’s strategy. Up to and during that time the cost of acquiring producing properties had remained high, and Pioneer Southwest determined that a drilling program would provide better returns than a strategy involving only acquisitions. Pioneer Southwest believed the addition of a drilling program would potentially permit Pioneer Southwest to grow its cash flow and distributions.

On August 31, 2009, Pioneer Southwest completed the acquisition of certain oil and gas properties in the Spraberry field consisting of non-operating working interests in approximately 1,100 identified producing wells, and assumed net obligations associated with certain commodity price derivative positions and certain other

liabilities from Pioneer (the “2009 Acquisition”). On November 16, 2009, Pioneer Southwest completed a public offering of 3,105,000 Pioneer Southwest common units (the “2009 Offering”). Following the 2009 Offering, Pioneer owned a 62.0% interest in Pioneer Southwest, including the 0.1% general partner interest and a 61.9% limited partner interest. The successful drilling program resulting from the 2009 Acquisition and the 2009 Offering enabled Pioneer Southwest to increase its distributions per common unit in May 2011 from $0.50 to $0.51. In addition, as Pioneer Southwest’s drilling program continued, Pioneer Southwest benefitted from the knowledge gained by Pioneer in its drilling program, with Pioneer Southwest’s wells being drilled to deeper depths for better rates of return despite the greater costs.

In December 2011, Pioneer Southwest announced an increase in its drilling program to add a third drilling rig, with an expected capital budget ranging from $110 million to $120 million in 2012. The successful drilling program enabled Pioneer Southwest to increase its quarterly distribution per common unit again in May 2012 from $0.51 to $0.52.

On December 16, 2011, Pioneer Southwest completed a public offering of 2,600,000 Pioneer Southwest common units (the “2011 Offering”) for net proceeds of $72.6 million, including $76,000 contributed by Pioneer Southwest GP to maintain its 0.1% general partner interest. Concurrent with the 2011 Offering, Pioneer also sold 1.8 million Pioneer Southwest common units for $50.5 million of net proceeds. Following the 2011 Offering, Pioneer owned a 52.5% interest in Pioneer Southwest, consisting of the 0.1% general partner interest and a 52.4% limited partner interest. Pioneer Southwest used the proceeds it received from the 2011 Offering to reduce outstanding borrowings.

Consideration of Strategic Alternatives

During 2012, Pioneer and third parties in the vicinity of Pioneer Southwest’s area of operations began to focus on drilling horizontal wells rather than vertical wells. Horizontal wells, while providing higher production and investment returns than vertical wells in the same areas, are more expensive to drill, and require larger contiguous tracts of acreage. As Pioneer developed its horizontal drilling program, management of Pioneer became aware that Pioneer Southwest’s potential to fully develop its acreage as a standalone entity through horizontal drilling was uncertain due to potential capital constraints, the non-contiguous nature of some of its acreage, and some of its acreage being not of sufficient size to permit drilling of horizontal wells of sufficient length to be economic.

In early 2013, due to a combination of lower commodities prices, higher operating costs, and the effects of derivatives that were entered into in 2009, management’s financial forecasts projected that net cash flows from Pioneer Southwest’s operations would be insufficient to fund its three-rig vertical drilling program, which would require additional borrowing under Pioneer Southwest’s credit facility to maintain then current levels of distributions for the remainder of 2013. Management believed that, at then current commodities prices and costs, Pioneer Southwest could continue with its current drilling strategy while maintaining distribution levels through the end of 2014, although that would result in increased borrowing levels and reduced liquidity.

The confluence of these factors led Pioneer senior management to believe that the strategy for Pioneer Southwest should be reviewed with the Pioneer Board and the Pioneer Southwest GP Board.

In early 2013, members of Pioneer’s management discussed the possibility of a merger of Pioneer and Pioneer Southwest. After conducting a review of initial modeling and potential strengths, weaknesses, opportunities and threats presented by the possible transaction, the consensus of management was to encourage senior management of Pioneer to pursue the matter further by discussing the possible transaction with the Pioneer Board.

On February 18, 2013, members of Pioneer management contacted Robert L. Kimball, a partner at Vinson & Elkins, and engaged Vinson & Elkins as counsel for Pioneer with regard to the potential transaction.

On February 20, 2013, at a regular quarterly meeting of the Pioneer Board, Scott D. Sheffield, Chairman and Chief Executive Officer of Pioneer and Pioneer Southwest GP, led a discussion on Pioneer’s position in Pioneer Southwest and informed the Pioneer Board that Pioneer management had begun to study the potential effects of a combination of Pioneer and Pioneer Southwest. The Pioneer Board directed Pioneer management to evaluate strategic alternatives with regard to Pioneer’s ownership in Pioneer Southwest and to further consult with the Pioneer Board as the analysis progressed.

On February 28, 2013, Michael D. Wortley, a partner at Vinson & Elkins, on behalf of Pioneer, contacted Louis G. Hering of Morris Nichols and engaged Morris Nichols as Delaware counsel to Pioneer with regard to the potential transaction.

On March 7, 2013, at a regularly scheduled meeting of the Pioneer Southwest GP Board, members of Pioneer management discussed with the independent directors of Pioneer Southwest GP their belief that cash flows from operations would not be sufficient to fund Pioneer Southwest’s drilling program through 2013 without further borrowing under Pioneer Southwest’s credit facility, and that Pioneer Southwest’s potential for horizontal development would likely be limited by the non-contiguous nature of some of its acreage and the other factors outlined above. Pioneer management also discussed a possible strategic transaction with Pioneer Southwest and the independent directors of Pioneer Southwest GP were informed of the Pioneer Board’s directive to Pioneer management to evaluate strategic alternatives with respect to Pioneer’s ownership in Pioneer Southwest. The independent directors of Pioneer Southwest GP were informed that no decision had been made by the Pioneer Board regarding whether to pursue or propose any potential transaction and that any such transaction proposal would first have to be approved by the Pioneer Board. Phillip Gobe, a director of Pioneer Southwest GP, was not present at the March 7, 2013 meeting. Subsequently, Mr. Gobe was briefed on the discussions that took place at the meeting by Richard P. Dealy, Executive Vice President and Chief Financial Officer of Pioneer and Pioneer Southwest GP and a director of Pioneer Southwest GP.

On March 8, 2013, members of the Pioneer Southwest Conflicts Committee contacted the committee’s attorney, G. Michael O’Leary of Andrews Kurth, and discussed the potential transaction. The Pioneer Southwest Conflicts Committee engaged Mr. O’Leary to represent the committee with respect to the potential transaction.

During the first weekend in April 2013, Jim A. Watson, a director of Pioneer, met socially with Royce W. Mitchell, a director of Pioneer Southwest GP, whom Mr. Watson had known for many years. During his conversation with Mr. Mitchell, Mr. Mitchell indicated to Mr. Watson that Mr. Sheffield had informed the Pioneer Southwest GP Board that Pioneer was considering a proposal to acquire the outstanding common units of Pioneer Southwest that it did not already own, and Mr. Watson indicated that he had been informed of such a possibility as well. Mr. Watson and Mr. Mitchell did not discuss any terms of a possible transaction or engage in any negotiations.

On April 24, 2013, a meeting of the Pioneer Southwest GP Board was held in the Houston offices of Andrews Kurth and management of Pioneer Southwest GP presented an update of its analysis of Pioneer Southwest’s strategy and properties from the March 7 board meeting. Mr. Sheffield informed the directors that Pioneer’s management was still reviewing a possible strategic combination of Pioneer and Pioneer Southwest and that no recommendation had been made to Pioneer’s Board with regard to any possible transaction between Pioneer and Pioneer Southwest.

During the April 24th Pioneer Southwest GP Board meeting, Mr. Dealy provided an update of management’s outlook for Pioneer Southwest. As discussed at the Board’s prior meeting in March, Mr. Dealy stated that, under current commodities prices and costs, management believed Pioneer Southwest could continue its 3-rig program for the near and medium term, but that Pioneer Southwest’s financial leverage would continue to increase. Furthermore, management expected that Pioneer Southwest would be unable to continue to run a 3-rig vertical program over the long-term and fund distributions without adding significant incremental debt. Mr. Dealy also noted the trend in Pioneer Southwest’s operating area toward horizontal drilling. Mr. Dealy pointed out that

Pioneer Southwest’s leasehold acreage and wellbore assignment rights (Virtual 40s) were located in good potential resource areas and that Pioneer had identified 125 horizontal locations on Pioneer Southwest’s leasehold acreage with drillable lateral lengths in excess of 5,000 feet as having a potentially attractive value based on geologic analysis and limited drilling results by Pioneer and other industry participants to date. Mr. Dealy also pointed out, however, that, other than the aforementioned 125 horizontal locations on Pioneer Southwest’s leasehold acreage with potentially attractive value, Pioneer Southwest would likely not be able to develop significant portions of its remaining leasehold acreage (such acreage, the “stranded leasehold acreage”) and its Virtual 40s through horizontal drilling because Pioneer Southwest did not hold sufficient contiguous acreage or sufficient rights that would be needed to drill horizontal wells of sufficient length to be economic (Mr. Dealy noted that such stranded leasehold acreage and Virtual 40s that are contiguous with Pioneer leasehold acreage could potentially be developed by Pioneer if all the property was owned by Pioneer). Mr. Dealy further noted that the continuation of Pioneer Southwest’s vertical drilling program would likely reduce or eliminate the horizontal potential that may exist on Pioneer Southwest’s leasehold acreage as a result of increasing the density of vertical wells, which could result in future diminution in the value of Pioneer Southwest’s leasehold acreage if horizontal drilling locations were no longer viable.

Following the presentation, the independent members of the Pioneer Southwest GP Board (which members make up the standing Pioneer Southwest Conflicts Committee) discussed with Mr. O’Leary the presentation and the possibility of a strategic transaction between Pioneer and Pioneer Southwest.

On May 2, 2013, Andrews Kurth, on behalf of the Pioneer Southwest Conflicts Committee, contacted and engaged Richards Layton to serve as the Pioneer Southwest Conflicts Committee’s Delaware legal counsel.

On May 6, 2013, a telephonic meeting of the Pioneer Board was held and the analysis of a potential business combination with Pioneer Southwest was presented. Mr. Dealy presented management’s analysis of the potential transaction between Pioneer and Pioneer Southwest, including management’s financial analyses regarding Pioneer Southwest’s current outlook and properties. The presentation also included an update of management’s outlook for Pioneer Southwest’s net asset value,prospects, taking into account management’s recent technical work regarding the potentialPioneer’s due diligence investigation of Pioneer Southwest’s properties for horizontal development. The Pioneer Board was presented with a draft proposal letter to the Chairman of the Pioneer Southwest Conflicts Committee proposing a combination of Pioneer and Pioneer Southwest. An exchange ratio of 0.2234 of a share of Pioneer common stock per Pioneer Southwest common unit was established based on management’s analysis of Pioneer Southwest’s net asset value, taking into consideration various comparable financial and industry valuation metrics. After extensive discussion, the Pioneer Board unanimously authorized and approved the proposal and authorized Pioneer management to deliver the proposal to the Chairman of the Pioneer Southwest Conflicts Committee.Parsley;

On the evening of May 6, 2013, Messrs. Sheffield, Dealy and Kellum and Mark S. Berg, Executive Vice President and General Counsel of Pioneer and Pioneer Southwest GP, had dinner in Dallas, Texas, with the independent members of the Pioneer Southwest GP Board, before the regularly scheduled Pioneer Southwest GP Board meeting the following morning. Participants at the dinner had initial discussions about the possible mechanics and benefits of a potential business combination of Pioneer and Pioneer Southwest.

On the morning of May 7, 2013, a regularly scheduled quarterly meeting of the Pioneer Southwest GP Board was held at the offices of Pioneer Southwest in Irving, Texas. Mr. O’Leary was present at the board meeting by invitation. At the meeting, Mr. Sheffield presented Arthur L. Smith, Chairman of the Pioneer Southwest Conflicts Committee, with a written proposal from Pioneer pursuant to which Pioneer would acquire all of the outstanding Pioneer Southwest common units not already owned by Pioneer or its subsidiaries. Mr. Sheffield explained that the proposed transaction would be structured as a merger between Pioneer Southwest and a wholly-owned subsidiary of Pioneer, with a proposed exchange ratio of 0.2234 of a share of Pioneer common stock for each outstanding publicly held Pioneer Southwest common unit. Mr. Sheffield noted that, in proposing the exchange ratio, Pioneer had assumed for valuation purposes that a regular quarterly Pioneer Southwest common unit distribution of $0.52 per Pioneer Southwest common unit would be declared in July with respect to the second quarter of 2013 and that, thereafter, common unit distributions would be suspended while

the transaction was pending. Mr. Sheffield further explained that the proposal was non-binding and subject to final Pioneer Board approval and negotiation of definitive agreements. Mr. Sheffield stressed that the written proposal stated that Pioneer was interested only in acquiring the outstanding publicly held Pioneer Southwest common units and was not interested in selling the Pioneer Southwest common units held by Pioneer USA or Pioneer USA’s interest in Pioneer Southwest GP. Mr. Dealy then led a discussion of Pioneer’s valuation methodology. Mr. Dealy discussed the resulting estimated net asset value for Pioneer Southwest, the assumed value of shares of Pioneer common stock based on a 60-trading day trailing average price, and various metrics represented by the proposed exchange ratio. Mr. Dealy also noted that, at the proposed exchange ratio, based on the trading prices of the Pioneer Southwest common units and distributions since Pioneer Southwest’s IPO, no Pioneer Southwest unitholder was expected to experience a cash loss on its investment.

Following Mr. Dealy’s presentation and discussion, the Pioneer Southwest Conflicts Committee met in executive session with Mr. O’Leary to discuss a proposed draft of written resolutions relating to the delegation of authority by the Pioneer Southwest GP Board to the Pioneer Southwest Conflicts Committee. Following the executive session, the participants in the regular session of the Pioneer Southwest GP Board meeting discussed the role of, and the criteria for membership on, the Pioneer Southwest Conflicts Committee. Mr. Thomas Murphy, an in-house attorney of Pioneer, led a discussion of each of the elements required under the Pioneer Southwest partnership agreement for a director to be eligible to serve on the Pioneer Southwest Conflicts Committee. In particular, Mr. Murphy noted that eligibility requirements for a director of Pioneer Southwest GP to serve on the Pioneer Southwest Conflicts Committee are as follows: (1) the director must not (a) be a security holder, officer or employee of Pioneer Southwest GP or any of its affiliates, including Pioneer and its subsidiaries (other than holding Pioneer Southwest common units), (b) be a director of any affiliate of Pioneer Southwest GP, including Pioneer and its subsidiaries, or (c) hold an ownership interest in Pioneer Southwest or its subsidiaries (other than holding Pioneer Southwest common units); (2) the director must meet the independence standards required to serve on an audit committee of a board of directors established by the Exchange Act and the rules and regulations of the SEC and the NYSE, including the requirement under the NYSE Listed Company Manual that “no director qualifies as ‘independent’ unless the board of directors affirmatively determines that the director has no material relationship with the listed company (either directly or as a partner, shareholder or officer of an organization that has a relationship with the company)” (where “listed company” and “company” are understood to include any parent or subsidiary in a consolidated group with the listed company); and (3) the director must not have any relationship that would be required to be disclosed by Pioneer Southwest GP pursuant to Item 404(a) of Regulation S-K under the Securities Act if Pioneer Southwest GP were subject to the provisions of the Exchange Act.

Following this discussion, the directors of the Pioneer Southwest GP Board, acting unanimously, affirmatively confirmed the independence of each of the members of the Pioneer Southwest Conflicts Committee, affirmatively determined, as required under the NYSE Listed Company Manual, that no member of the Pioneer Southwest Conflicts Committee has any material relationship with Pioneer Southwest, Pioneer or any of their respective subsidiaries (either directly or as a partner, shareholder or officer of an organization that has a relationship with Pioneer Southwest, Pioneer or any of their respective subsidiaries), affirmatively confirmed that each member of the Pioneer Southwest Conflicts Committee satisfies all of the criteria for membership on the Pioneer Southwest Conflicts Committee, and resolved to delegate full authority of the Pioneer Southwest GP Board to the Pioneer Southwest Conflicts Committee to, among other things:

review and evaluate the terms and conditions of the proposed merger transactions and any other arrangements or agreements related to the proposed merger transactions (“related arrangements”) or any potential alternative transaction (an “alternative transaction”) on behalf of the Pioneer Southwest GP Board, the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest;

 

negotiate, or delegate to any person or persons to negotiate, the terms and conditions of the proposed merger transactions and any related arrangements or any alternative transaction;

determine whether or not to recommend to the Pioneer Southwest GP Board the proposed merger transactions and any related arrangements or any alternative transaction, or definitive agreements relating thereto (which such determination would constitute “Special Approval” under the Pioneer Southwest partnership agreement);

determine whether the proposed merger transactions and any related arrangements or any alternative transaction are in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest;

make any recommendation to the Pioneer Southwest unaffiliated unitholders regarding what action, if any, should be taken by the Pioneer Southwest unaffiliated unitholders with respect to the proposed merger transactions and any related arrangements or any alternative transaction;

approve or disapprove of the proposed merger transactions and any related arrangements or any alternative transaction and any definitive agreements relating thereto on behalf of the Pioneer Southwest GP Board; and

take any other actions that the Pioneer Southwest Conflicts Committee deems necessary, appropriate or advisable and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest with respect to the proposed merger transactions and any related arrangements or any alternative transaction.

The Pioneer Southwest GP Board granted the Pioneer Southwest Conflicts Committee the full power and authority of the Pioneer Southwest GP Board to approve or not approve the proposed merger transactions and any related arrangements or any alternative transaction and definitive agreements relating thereto without the necessity of any Pioneer Southwest GP Board approval. Additionally, the Pioneer Southwest GP Board, acting unanimously, further resolved that, if the Pioneer Southwest Conflicts Committee submitted any recommendation with respect to any of the foregoing transactions, arrangements or agreements to the Pioneer Southwest GP Board, the Pioneer Southwest GP Board would not approve the proposed merger transaction or any related arrangements or any alternative transaction or definitive documents relating thereto without first receiving the prior recommendation of such proposed merger transactions and related arrangements or any alternative transaction and definitive documents relating thereto from the Pioneer Southwest Conflicts Committee.

Later on May 7, 2013, after the closing of trading on the NYSE, Pioneer and Pioneer Southwest each issued a press release announcing Pioneer’s proposal.

On May 8, 2013, Vinson & Elkins sent a draft merger agreement and other draft transaction documents to Mr. O’Leary for review.

Subsequent to receiving the proposal from Pioneer and during the week of May 13, 2013, the Pioneer Southwest Conflicts Committee held discussions regarding potential candidates to serve as the Pioneer Southwest Conflicts Committee’s independent financial advisor.

On May 20, 2013, Messrs. Smith, Gobe and Mitchell and representatives from Andrews Kurth met with three candidates for consideration as the Pioneer Southwest Conflicts Committee’s financial advisor. The Pioneer Southwest Conflicts Committee discussed with each financial advisory firm potential conflicts of interest, its familiarity with Pioneer’s and Pioneer Southwest’s business and current circumstances, its industry expertise and experience in transactions similar to the proposed transaction, and the analytical approach it would use if it were engaged. The Pioneer Southwest Conflicts Committee then reviewed the strengths and weaknesses of each financial advisory firm candidate.

Between May 20, 2013, and June 3, 2013, Mr. Smith spoke telephonically with members of the Pioneer Southwest Conflicts Committee to discuss the financial advisory candidates. On May 23, 2013, in New York City, New York, Mr. Smith met with Mr. Gosule, and later with a senior executive of Evercore, to discuss the proposed

transaction. As a result of these discussions, the Pioneer Southwest Conflicts Committee determined to engage Evercore, based on Evercore’s qualifications, experience, reputation and knowledge of the business and affairs of Pioneer Southwest and its industry, to act as financial advisor to the Pioneer Southwest Conflicts Committee in connection with the proposal by Pioneer to acquire all of the publicly held Pioneer Southwest common units in exchange for shares of Pioneer common stock. On or about June 3, 2013, the Pioneer Southwest Conflicts Committee and Evercore agreed in principle to the terms of Evercore’s engagement, after which Evercore began preliminary due diligence and valuation work. The Pioneer Southwest Conflicts Committee and Evercore entered into a written engagement letter on June 17, 2013.

On June 6, 2013, Evercore entered into a confidentiality agreement with Pioneer. The confidentiality agreement generally required Evercore to maintain the confidentiality of any evaluation materials related to Pioneer or Pioneer Southwest that were or would be provided to Evercore by Pioneer, its affiliates or the Pioneer Southwest Conflicts Committee for Evercore’s use in the evaluation of the proposed merger. Following the execution of the confidentiality agreement, representatives of Evercore met with members of Pioneer Southwest GP management at Pioneer Southwest’s offices at which management gave a detailed presentation to Evercore related to Pioneer Southwest’s properties, including its leasehold acreage, wellbore assignment rights (Virtual 40s) and potential locations for horizontal drilling, as well as the challenges facing the development of Pioneer Southwest’s properties. At the meeting, representatives of Evercore indicated to the Pioneer Southwest GP management team that Evercore would also be requesting that Pioneer management provide projected financial information for Pioneer.

During the week of June 10, 2013, the Pioneer Southwest Conflicts Committee discussed various potential candidates to serve as the Pioneer Southwest Conflicts Committee’s independent reserve engineer. On June 10, 2013, Mr. Smith contacted a reserve engineering firm to discuss a potential engagement with the Pioneer Southwest Conflicts Committee; however, it subsequently became apparent that this reserve engineering firm had a conflict of interest that would prevent it from serving as a disinterested and independent reserve engineering firm to the Pioneer Southwest Conflicts Committee. Subsequent to this discussion, the Pioneer Southwest Conflicts Committee contacted Midland, Texas based Russell K. Hall, a reserve engineering firm with experience in analyzing properties in the Permian Basin.

On June 11, 2013, the Pioneer Southwest Conflicts Committee held a telephonic meeting with Evercore and representatives from Andrews Kurth. The meeting participants discussed the future treatment of distributions in the event that the proposed transaction did not take place, the financial information regarding Pioneer currently available to the Pioneer Southwest Conflicts Committee and its advisors, Evercore’s preliminary due diligence to date and preliminary conversations that took place between Evercore and Pioneer regarding Pioneer Southwest unitholder approval requirements.

On June 13, 2013, Mr. Dealy provided representatives of Evercore with certain projected financial information for Pioneer for the years 2013 through 2015. Evercore inquired of Mr. Dealy as to whether Pioneer would provide projected financial information for an additional two years. Mr. Dealy explained that such projections would have limited value and, in his view, would be unnecessary to Evercore’s analysis given that Pioneer’s market value was so much greater than that of Pioneer Southwest and Pioneer’s common stock was a very liquid security.

On June 18, 2013, members of the Pioneer Southwest Conflicts Committee held a telephonic meeting with representatives from Andrews Kurth. The meeting participants discussed generally the timeline, process and due diligence steps required in order to undertake a review of the proposed transaction. The Pioneer Southwest Conflicts Committee also discussed the financial and reserve information regarding Pioneer currently available to the Pioneer Southwest Conflicts Committee and its advisors, and considered that an additional two years of projections would be speculative and of little value to Evercore and the Pioneer Southwest Conflicts Committee. The Pioneer Southwest Conflicts Committee also discussed engagement of an independent reserve engineering firm to conduct a reserve audit and a reserve and volumetric analysis of Pioneer Southwest’s acreage position.

On June 18, 2013, Mr. O’Leary called Mr. Wortley to relay the message that Evercore would be able to complete its analysis utilizing the financial data previously provided by Pioneer. Mr. O’Leary and Mr. Wortley also discussed the compensation that the Pioneer Southwest GP Board would consider authorizing to be paid to the members of the Pioneer Southwest Conflicts Committee for their services relating to evaluation of the Pioneer proposal.

On June 25, 2013, Mr. Wortley called Mr. O’Leary to continue to discuss compensation for the members of the Pioneer Southwest Conflicts Committee.

On the morning of June 26, 2013, in advance of a meeting with Evercore, the Pioneer Southwest Conflicts Committee met to formally approve the engagement of Russell K. Hall to serve as the Pioneer Southwest Conflicts Committee’s independent reserve engineer based on Russell K. Hall’s experience in analyzing properties in the Permian Basin. The Pioneer Southwest Conflicts Committee discussed the fact that Russell K. Hall had entered into a confidentiality agreement on June 25, 2013, with Pioneer with terms substantially similar to Pioneer’s confidentiality agreement with Evercore. During the meeting, the Pioneer Southwest Conflicts Committee discussed the scope of the review of Pioneer Southwest’s reserves to be conducted by Russell K. Hall. The Pioneer Southwest Conflicts Committee also discussed that it would be necessary to await the completion of Russell K. Hall’s due diligence and analysis, as well as Evercore’s subsequent interpretation of such analysis, before the Pioneer Southwest Conflicts Committee would be able to fully evaluate and respond to the proposal made by Pioneer on May 7, 2013. Subsequent to the meeting, the Pioneer Southwest Conflicts Committee and Russell K. Hall entered into a written engagement letter.

Later on June 26, 2013, Messrs. Smith and Gobe met in person with representatives of Evercore and Andrews Kurth, with Messrs. Gosule and Mitchell joining by telephonic conference call. Evercore presented an overview of the recent price performance and current trading conditions of Pioneer Southwest and Pioneer as they related to the exchange ratio of 0.2234, and discussed its preliminary analysis with respect to various valuation methodologies that Evercore would use in order to evaluate the proposed transaction. Evercore also discussed the opportunity and valuation implications of developing the Wolfcamp Shale formation, and also stated that it was awaiting the analysis of Russell K. Hall in order to finalize its own analyses. Following the discussion with Evercore, the Pioneer Southwest Conflicts Committee discussed aspects of a potential counteroffer, including an increase in the exchange ratio, the committee’s desire that a vote of a majority of the Pioneer Southwest unaffiliated unitholders (i.e. “majority of the minority”) be a condition to consummation of any transaction with Pioneer, and a continuation of the regular quarterly distributions that might occur before the consummation of the proposed transaction. At this time, the Pioneer Southwest Conflicts Committee decided that it would wait for Russell K. Hall’s analysis before moving forward with any negotiations with Pioneer.

The Pioneer Southwest Conflicts Committee also finalized with the other members of the Pioneer Southwest GP Board the compensation to be paid to the members of the Pioneer Southwest Conflicts Committee. The compensation, which is in addition to the regular compensation payable to the members of the Pioneer Southwest Conflicts Committee in their capacity as directors on the Pioneer Southwest GP Board, was set as follows: (1) $20,000 per month (plus an additional $5,000 per month for the chairman) payable monthly in arrears beginning May 1, 2013, until the filing of Pioneer’s registration statement on Form S-4; (2) $7,500 per month (plus an additional $2,500 per month for the chairman) thereafter until the closing of the merger, which fees would terminate upon cessation of discussions relating to the transaction or termination of the merger agreement; and (3) if litigation continues after closing, a fee of $1,000 per hour for time actually spent in connection with such litigation.

On the same date, the Pioneer Southwest Conflicts Committee entered into a confidentiality agreement with Pioneer. The confidentiality agreement generally required the Pioneer Southwest Conflicts Committee to maintain the confidentiality of any evaluation materials related to Pioneer provided to the Pioneer Southwest Conflicts Committee by Pioneer or its affiliates for the committee’s use in the evaluation of the proposed merger.

On July 9, 2013, Mr. Dealy and other members of Pioneer management met with members of Evercore and Russell K. Hall in Pioneer’s offices to discuss matters relating to the transaction.

On the same date of July 9, 2013, the Pioneer Southwest Conflicts Committee held a meeting to discuss the agenda for its upcoming meeting that would take place in Houston on July 17, 2013.

On July 15, 2013, Mr. Wortley called Mr. O’Leary to report that, while the Pioneer Southwest Conflicts Committee had not yet provided comments on the draft merger agreement circulated on May 8, 2013, Vinson & Elkins had made certain updates to the merger agreement, including a revision to the treatment of fractional shares such that any fractional share of Pioneer common stock otherwise issuable in the merger would be rounded up to a whole share of Pioneer common stock. Mr. Wortley also noted to Mr. O’Leary that it was Pioneer’s expectation that if the merger agreement were terminated, Pioneer Southwest would declare a catch-up distribution for all quarters during which regular quarterly distributions had been suspended, and regular quarterly distributions would thereafter resume. The following day, Vinson & Elkins circulated a revised merger agreement draft to Andrews Kurth reflecting the changes discussed on the previous day.

On July 17, 2013, the Pioneer Southwest Conflicts Committee held a meeting to discuss the terms of the proposed transaction. Evercore provided an update on market conditions, noting that Pioneer Southwest’s common unit price had increased 38.2% from the date of the announcement of the proposed transaction to July 16, 2013, while a selected peer group (identified under “The Merger — Opinion of the Pioneer Southwest Conflicts Committee’s Financial Advisor — Valuation of Pioneer Southwest — Peer Group Trading Analysis”) of publicly traded exploration and production partnerships had declined by 5.3% on average during the same time period. Evercore also noted that the implied offer price of Pioneer Southwest’s common units calculated by using the exchange ratio of 0.2234 was slightly below the market price of Pioneer Southwest’s common units, signaling that investors were expecting an increase in the exchange ratio going forward. The Pioneer Southwest Conflicts Committee and its advisors considered Pioneer Southwest’s large base of retail investors, and the risk of not getting sufficient voter turnout by Pioneer Southwest unaffiliated unitholders in connection with a majority of the minority vote, which could result in the voting condition not being met due to low voter turnout. Since the risk of low voter turnout is high, the Pioneer Southwest Conflicts Committee considered that a more practical and appropriate vote requirement would be to condition the approval of the merger proposal on a special vote of the “majority of the minority” of the Pioneer Southwest unitholders actually voting at the special meeting (i.e. “majority of unaffiliated units cast condition”). The Pioneer Southwest Conflicts Committee and Evercore also discussed potential alternatives to the proposed transaction, and considered whether it would be appropriate to shop the company to prospective bidders and to make further inquiry of Pioneer with respect to other alternatives. The committee considered that Pioneer had indicated that it would not sell its Pioneer Southwest common units, sell the general partner interest or sell the operating rights with respect to Pioneer Southwest’s acreage, meaning that a prospective bidder would not be able to gain control of Pioneer Southwest’s operations. The committee concluded that prospective bidders would not be interested in purchasing the outstanding unaffiliated common units without gaining control of operations, and directed Evercore to analyze other strategic alternatives for the Pioneer Southwest Conflicts Committee to consider. The Pioneer Southwest Conflicts Committee also discussed that it was still awaiting the completion of Russell K. Hall’s analysis before moving forward with discussions with Pioneer regarding the proposed transaction.

During late July 2013, on several occasions, members of Pioneer Southwest management, including Mr. Dealy, and members of the Pioneer Southwest Conflicts Committee kept each other apprised about the Pioneer Southwest Conflicts Committee’s timing for review and response to Pioneer’s proposal, and Mr. Wortley and Mr. O’Leary communicated with each other on several occasions about similar matters.

On July 30, 2013, a telephonic meeting was held among the Pioneer Southwest Conflicts Committee, representatives of Evercore, Andrews Kurth and Russell K. Hall to discuss Russell K. Hall’s findings and analysis. Russell K. Hall indicated that it had received ready access to information regarding Pioneer Southwest and Pioneer. Russell K. Hall noted that its analysis had focused on the horizontal drilling prospects with respect to portions of the

Wolfcamp formation in the Permian Basin, and stated that the wells located in the northern portions of the Wolfcamp formation performed better than the wells in the southern portion, thus Russell K. Hall utilized higher estimated ultimate reserve numbers in its analysis than those utilized for the Wolfcamp formation by Pioneer. Russell K. Hall concluded that this divergence meant that more value could be attributed to Pioneer Southwest’s acreage than had been previously contemplated. Evercore discussed the valuation implications of Russell K. Hall’s analysis and updated the Pioneer Southwest Conflicts Committee on market conditions. Evercore next led the Pioneer Southwest Conflicts Committee through its analysis of standalone and transactional strategic alternatives. Evercore’s standalone alternative involved maintaining the status quo, which was considered in terms of the ability of Pioneer Southwest to develop the Wolfcamp formation with horizontal drilling. It was noted that the implied offer price using the exchange ratio of 0.2234 was higher than the estimated valuation of Pioneer Southwest under this scenario based on the most favorable assumptions regarding Pioneer Southwest’s ability to drill the horizontal locations, some of which would have required the approval of Pioneer. The transactional alternatives presented by Evercore included conducting a leveraged recapitalization, accelerating Pioneer Southwest’s drilling program, as well as shopping Pioneer Southwest’s unaffiliated common units to prospective third party bidders. It was noted that if Pioneer Southwest conducted a leveraged recapitalization, the additional leverage incurred by Pioneer Southwest would limit its ability to pursue growth projects. The Pioneer Southwest Conflicts Committee also considered that the estimated valuation of Pioneer Southwest under this scenario was lower than the implied valuation of Pioneer Southwest using the exchange ratio of 0.2234. Evercore then reviewed the alternative of accelerating Pioneer Southwest’s drilling program, which would have to be financed in part by decreasing the distribution to Pioneer Southwest unitholders. The Pioneer Southwest Conflicts Committee discussed the negative effect that such a decrease would have on the trading price of Pioneer Southwest’s common units and its unaffiliated unitholders. Evercore then discussed with the Pioneer Southwest Conflicts Committee the alternative of shopping Pioneer Southwest’s unaffiliated common units to potential third party bidders. Evercore and the Pioneer Southwest Conflicts Committee reaffirmed the conclusion reached at their previous meeting that this was not a feasible alternative.

On the morning of August 1, 2013, the Pioneer Southwest Conflict Committee met telephonically with representatives of Evercore and Andrews Kurth to review the financial analyses supporting various exchange ratios, Pioneer Southwest’s alternatives if it chose not to proceed with a transaction with Pioneer (noting the obstacles to transactions involving third parties or a leveraged recapitalization) and issues pertaining to a majority of the minority voting condition. At the conclusion of the meeting, the Pioneer Southwest Conflicts Committee directed Evercore to first ask Pioneer whether it would: (1) sell its general partner interest in Pioneer Southwest; (2) allow farm-outs; and (3) consider a reduction of regular quarterly distributions to finance a horizontal drilling program. Only if those responses were firmly negative would Evercore then deliver a formal counteroffer that would include an exchange ratio of 0.2500, a majority of unaffiliated votes cast condition, and a confirmation that regular quarterly distributions after the second quarter regular distribution payable in August would continue to be paid until the consummation of the proposed transaction.

On August 1, 2013, Raymond B. Strong III, Senior Managing Director of Evercore, and Mr. Dealy spoke telephonically. Mr. Strong asked Mr. Dealy whether Pioneer would: (1) sell its general partner interest in Pioneer Southwest; (2) allow farm-outs; and (3) consider a reduction of regular quarterly distributions to finance a horizontal drilling program. To the first question, Mr. Dealy stated that Pioneer would not sell the general partner interest in Pioneer Southwest. Regarding questions (2) and (3), Mr. Dealy indicated to Mr. Strong that the Pioneer Southwest Conflicts Committee should evaluate Pioneer’s proposal, but that questions (2) and (3) regarding whether to allow farm-outs and whether to consider reducing regular quarterly distributions to finance a horizontal drilling program were not part of the proposal and should be questions for the Pioneer Southwest GP Board to consider if Pioneer and the committee could not reach an agreement with respect to Pioneer’s proposal. Mr. Strong then verbally delivered the Pioneer Southwest Conflicts Committee’s counteroffer to the Pioneer proposal, which counteroffer consisted of (1) a 12% increase of the exchange ratio to 0.2500, (2) the continuation of regularly quarterly distributions on the Pioneer Southwest common units while the merger is pending, and (3) a majority of unaffiliated units cast condition (i.e., a vote of a majority of the minority of the Pioneer Southwest unitholders actually voting at the special meeting). Shortly after Mr. Strong

delivered the counteroffer orally, Andrews Kurth circulated to Vinson & Elkins a revised draft of the merger agreement reflecting the counteroffer. The revised merger agreement contained additional revisions as well, including a change to the definition of “Superior Proposal” changing the acquisition thresholds within such definition from 80% to 20%. (As summarized in “The Merger Agreement — Covenants — Acquisition Proposals,” among other effects, the thresholds within the definition of “superior proposal” determine when the Pioneer Southwest Conflicts Committee may enter into discussions with third parties in response to unsolicited offers, which would otherwise be prohibited by the merger agreement.)

On August 2, 2013, following internal discussions among Pioneer’s management and Vinson & Elkins, Mr. Dealy called Mr. Strong to respond to the Pioneer Southwest Conflicts Committee’s counteroffer. Mr. Dealy reported that, subject to final approval by the Pioneer Board, Pioneer would be willing to increase the exchange ratio from 0.2234 to 0.2279 and would agree to continued regular quarterly distributions on the Pioneer Southwest common units prior to closing, but that Pioneer would not agree to any special voting requirement. Mr. Dealy also informed Mr. Strong that there were a number of other revisions in the revised draft of the merger agreement that Pioneer objected to, and that Mr. Wortley would call representatives of Andrews Kurth to convey those objections. Later that day, Vinson & Elkins circulated a revised draft of the merger agreement to Andrews Kurth reflecting the comments delivered orally by Mr. Dealy to Mr. Strong and by Mr. Wortley to Andrews Kurth. Among the revisions in the Vinson & Elkins draft was a revision of the definition of “Superior Proposal” back to the original version with acquisition thresholds set at 80%.

On August 5, 2013, there were discussions between Messrs. Smith and Dealy about the committee potentially reducing its proposed exchange ratio to 0.2350 and Pioneer potentially raising its proposed exchange ratio to 0.2300, but no agreement was reached in this regard.

Later that day on August 5, 2013, Mr. Smith and Mr. Dealy discussed the open financial issues, and Mr. Smith informed Mr. Dealy that he would continue to discuss the proposal with the other members of the Pioneer Southwest Conflicts Committee and would respond as soon as possible. Mr. Dealy requested that Pioneer be provided with an estimate of the fees and expenses of the committee’s advisors.

Later on August 5, 2013, the Pioneer Southwest Conflicts Committee and representatives from Evercore and Andrews Kurth met to discuss Evercore’s negotiations, the financial analyses supporting various exchange ratios and its desire to have a majority of unaffiliated units cast condition. At the conclusion of the meeting, the committee determined that it would consider the current counteroffer and reconvene the following day to formalize a response. Later that day, Mr. Smith informed Mr. Dealy that the committee had scheduled a meeting for the following morning.

On August 6, 2013, the Pioneer Southwest Conflicts Committee held a meeting to discuss the proposed transaction, and concluded that Messrs. Smith and Gobe would ask Pioneer to reconsider the Pioneer Southwest Conflicts Committee’s previous counteroffer, which included a majority of unaffiliated votes cast condition and that Pioneer should reconsider its response.

Following the meeting of the Pioneer Southwest Conflicts Committee, Messrs. Smith and Gobe called Mr. Dealy and informed him that the Pioneer Southwest Conflicts Committee reiterated its proposed exchange ratio of 0.2500 and majority of unaffiliated units cast condition. Mr. Dealy informed the Pioneer Southwest Conflicts Committee members that Pioneer believed that the increased exchange ratio, as proposed by Pioneer, together with the continuation of regular quarterly distributions through closing, represented fair consideration for the Pioneer Southwest unaffiliated unitholders, especially in light of the fact that the price of shares of Pioneer common stock had increased significantly since the date on which Pioneer made its proposal, but that Pioneer might also be willing to consider voting 40% of the outstanding Pioneer Southwest units in favor of the proposed transaction, and voting the remainder of its Pioneer Southwest units in proportion to the vote of the Pioneer Southwest unaffiliated unitholders.

Later on August 6, 2013, the Pioneer Southwest Conflicts Committee met with representatives of Evercore and Andrews Kurth to discuss Pioneer’s counteroffer and the voting structure Mr. Dealy mentioned Pioneer

would consider. The Pioneer Southwest Conflicts Committee considered that the voting structure described by Mr. Dealy provided little value, if any, to the Pioneer Southwest unaffiliated unitholders, since Pioneer would continue to control the vote even in the event that a majority of the Pioneer Southwest unaffiliated unitholders voted against the transaction. At the conclusion of the meeting, the Pioneer Southwest Conflicts Committee determined that Messrs. Gosule and Mitchell would contact Mr. Dealy the following day and request a majority of unaffiliated units cast condition and an exchange ratio of 0.2400.

Following the meeting, Mr. Dealy sent an email to Messrs. Gobe and Smith, in which he stated that, upon reflection, Pioneer could not agree to vote the remainder of its Pioneer Southwest common units above 40% in proportion to the vote of the Pioneer Southwest unaffiliated unitholders.

Later on August 6, 2013, members of Vinson & Elkins, including Mr. Wortley, had a telephone call with Mr. O’Leary and other members of Andrews Kurth to discuss the timing and content of Pioneer’s registration statement on Form S-4 assuming approval of a transaction.

On August 7, 2013, Messrs. Mitchell, Gosule, Dealy and Berg further discussed the proposed terms of the transaction. Later that day, Mr. Dealy had two telephone conferences with Messrs. Smith and Gobe. During the final exchange, Mr. Dealy reported to Messrs. Smith and Gobe that Pioneer’s final proposal was the increase of the exchange ratio to 0.2325 with the continuation of regular quarterly distributions. Mr. Dealy stated that this would be Pioneer’s final offer and that there was a strong likelihood that Pioneer would be forced to withdraw its proposal if the parties could not come to an agreement. Mr. Dealy also pointed out that Pioneer Southwest unitholders were receiving a 40% to 50% premium if calculated since the date of the announcement of the proposed transaction. Furthermore, Pioneer would agree to an expansion of the definition of “Superior Proposal,” but Pioneer would not agree to a special majority of unaffiliated units cast condition in the merger agreement.

The Pioneer Southwest Conflicts Committee met the following morning on August 8, 2013, to review the various discussions on August 6th and 7th between and among Messrs. Dealy and Berg for Pioneer and Messrs. Gobe, Gosule, Mitchell and Smith for the Pioneer Southwest Conflicts Committee. The Pioneer Southwest Conflicts Committee considered the performance of Pioneer Southwest’s common unit price relative to its peers from the date of the announcement of the proposed transaction, and noted that the difference in the percentage change in equity prices between Pioneer Southwest and its peers since the date of the announcement of the proposal to August 7, 2013, was roughly 50% to 60%, indicating that Pioneer Southwest had significantly outperformed such peers during that period. The Pioneer Southwest Conflicts Committee also considered the implied offer price relative to the current trading price of Pioneer Southwest’s common units, the risks to Pioneer Southwest’s common units and unaffiliated unitholders in the event that the proposed transaction did not occur, the fact that Mr. Dealy had indicated that this would be Pioneer’s “final offer,” and each committee member’s personal experiences with the principals of Pioneer. At the conclusion of the meeting, the committee agreed to tentatively accept Mr. Dealy’s proposal, and Mr. Smith so informed Mr. Dealy. Mr. Dealy then informed Pioneer management and a meeting of the Pioneer Board was called for later that day at 6:30 p.m. Dallas, Texas time. Members of Andrews Kurth informed Vinson & Elkins that the Pioneer Southwest Conflicts Committee would meet telephonically the following day, August 9, 2013, at 2:00 p.m. Dallas, Texas time, and that a telephonic meeting of the Pioneer Southwest GP Board would be held immediately thereafter.

Later that same day on August 8, 2013, members of Vinson & Elkins and members of Andrews Kurth exchanged e-mails and telephone calls regarding, among other things, the timing and agenda of the Pioneer Southwest GP Board meeting, the status of the merger agreement and other documents, and the status of Evercore’s fairness opinion. Vinson & Elkins circulated a revised merger agreement draft to Andrews Kurth reflecting the agreed upon exchange ratio of 0.2325, the continuation of regular quarterly distributions through closing, and no majority of unaffiliated units cast condition. The revised draft also included a revision of the definition of “Superior Proposal” according to which acquisition thresholds were set at 80%, except that any offer to acquire all or substantially all of the outstanding Pioneer Southwest common units not owned by Pioneer USA would be an “Acquisition Proposal” for purposes of the definition of “Superior Proposal.” Andrews Kurth

agreed to the changes to the merger agreement proposed by Vinson & Elkins, subject to approval by the Pioneer Southwest Conflicts Committee, and Vinson & Elkins circulated a final draft of the merger agreement ready for execution.

At approximately 6:30 p.m. Dallas, Texas time on August 8, 2013, a telephonic meeting of the Pioneer Board was held to consider the proposed merger on the terms that had been agreed to earlier that day. All of the directors on the Pioneer Board were present at the meeting. Representatives of Vinson & Elkins and members of Pioneer management were also in attendance. At the meeting, Mr. Sheffield informed the Pioneer Board that representatives of Pioneer had been in discussions with the Pioneer Southwest Conflicts Committee and its advisors and had agreed in principle to the terms of a transaction, subject to required approvals. He then discussed the agreed upon financial and voting terms and the premium that the financial terms represented over the value of Pioneer’s original proposal on May 7, 2013. Mr. Dealy described the negotiations that had taken place over the prior week, and he reviewed the key terms of the proposed transaction as agreed to by the parties. The Pioneer Board discussed with management the negotiation process, transaction terms, status of the litigation, and the benefits of and reasons for the merger (as set forth under the heading “The MergerPioneer’s Reasons for the Merger”). Mr. Berg reviewed the key terms of the proposed merger agreement, including the terms setting forth conditions to closing, representations and warranties, covenants and deal protections. The fiduciary duties of directors in considering the transaction were then reviewed and discussed. The Pioneer Board also discussed procedural matters in connection with its approval of the proposed transactions. After these discussions and deliberation, the Pioneer Board approved the merger agreement and related documents and the issuance of shares of Pioneer common stock in connection with the proposed merger, which vote was unanimous among the directors voting on the proposal. Directors Larry R. Grillot, Stacy P. Methvin and Phoebe A. Wood, who had recently joined the Pioneer Board and who were not familiar with the background of the initial proposal, abstained from the vote.

On August 9, 2013, a telephonic meeting of the Pioneer Southwest Conflicts Committee was held for the committee’s consideration of the proposed transaction. Present at the meeting were the members of the Pioneer Southwest Conflicts Committee, members of Evercore, members of Andrews Kurth and members of Richards Layton. Prior to the meeting, the committee members had received a presentation by Richards Layton, the financial analyses from Evercore, a meeting agenda, and current draft versions and summaries of the merger agreement and voting agreement for the proposed transaction.

During the meeting, Richards Layton reviewed its presentation with the Pioneer Southwest Conflicts Committee and discussed the Pioneer Southwest Conflicts Committee’s fiduciary duties under Delaware law, the modifications of fiduciary duties that may be made under the Delaware Revised Uniform Limited Partnership Act and the standards for approval of the proposed transaction under Pioneer Southwest’s partnership agreement. Andrews Kurth led the Pioneer Southwest Conflicts Committee through a discussion of the merger agreement and voting agreement, and responded to the committee’s questions. Evercore reviewed its financial analyses with the committee and responded to the committee’s questions. Evercore also reviewed with the Pioneer Southwest Conflicts Committee the contents of the written fairness opinion Evercore was prepared to deliver, following which Evercore rendered its oral opinion to the committee (which was confirmed in writing by delivery of Evercore’s written opinion dated August 9, 2013) to the effect that, as of August 9, 2013, and based upon and subject to the factors, procedures, assumptions, qualifications and limitations set forth in its opinion, the proposed exchange ratio was fair, from a financial point of view, to the Pioneer Southwest unaffiliated unitholders. The Pioneer Southwest Conflicts Committee discussed whether it was prepared to recommend that the Pioneer Southwest GP Board approve the proposed merger and merger agreement, including in its discussion a review of the factors and considerations set forth under the heading “The Merger — Recommendation of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board and Reasons for the Merger.” At the conclusion of this discussion, the Pioneer Southwest Conflicts Committee unanimously approved the merger agreement and the merger transactions and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. This action taken by the Pioneer Southwest Conflicts Committee constituted “Special Approval” of

the merger agreement and the merger transactions under Pioneer Southwest’s partnership agreement. The Pioneer Southwest Conflicts Committee recommended that the Pioneer Southwest GP Board make the same approval and determination as the Pioneer Southwest Conflicts Committee and recommended that the Pioneer Southwest unitholders vote in favor of the merger proposal.

Immediately following the conclusion of the Pioneer Southwest Conflicts Committee meeting, a telephonic meeting of the Pioneer Southwest GP Board was held to consider the proposed transaction. The independent members of the Pioneer Southwest GP Board, members of Evercore and members of Andrews Kurth were among those present at the meeting. Messrs. Sheffield and Dealy and director Danny L. Kellum recused themselves from the meeting given their roles as both directors on the Pioneer Southwest GP Board and directors or executive officers of Pioneer. Since all of the directors present had also been present at the preceding meeting of the Pioneer Southwest Conflicts Committee, the directors determined to dispense with certain presentations and discussions that had been made at such prior meeting, including a presentation of financial analyses by Evercore, a review and discussion of the positive and negative factors relating to approval of the merger agreement and the merger transactions, and a summary by members of Andrews Kurth and Richards Layton of the terms of the merger agreement and the voting agreement, due diligence items, and the standards for approval of the merger agreement, the voting agreement and the merger transactions under Pioneer Southwest’s partnership agreement and applicable law and related duties. Mr. Strong of Evercore orally delivered Evercore’s fairness opinion to the independent directors of the Pioneer Southwest GP Board acting in such capacity, and confirmed that such members are authorized to rely on Evercore’s fairness opinion in such capacity. Following this, the Pioneer Southwest GP Board, by unanimous resolution of the members of the Pioneer Southwest GP Board in attendance, approved the merger agreement and the merger transactions, determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest, directed that the merger agreement and the merger transactions be submitted to the Pioneer Southwest unitholders at the Pioneer Southwest special meeting for approval and recommended that the Pioneer Southwest unitholders vote in favor of the merger proposal.

Following the meeting of the Pioneer Southwest GP Board, Pioneer and Pioneer Southwest GP management executed the definitive documents.

On August 12, 2013, Pioneer and Pioneer Southwest issued a joint press release announcing the merger agreement and the proposed merger.

Recommendation of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board and Reasons for the Merger

On August 9, 2013, the Pioneer Southwest Conflicts Committee unanimously approved the merger agreement and the merger transactions and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. This action of the Pioneer Southwest Conflicts Committee constitutes “Special Approval” of the merger agreement and the merger transactions under Pioneer Southwest’s partnership agreement. The Pioneer Southwest Conflicts Committee recommended that the Pioneer Southwest GP Board make the same approval and determination as the Pioneer Southwest Conflicts Committee. Based in part on this approval and determination, Special Approval and recommendation, the Pioneer Southwest GP Board approved the merger agreement and the merger transactions (such approval being unanimous among the independent directors, with the non-independent directors of Pioneer Southwest GP recusing themselves from the consideration and vote on such approval) and determined that the merger agreement and the merger transactions are fair and reasonable to and in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest. The Pioneer Southwest GP Board caused Pioneer Southwest GP to approve the merger agreement and the merger transaction and directed that the merger agreement and the merger transactions be submitted to the Pioneer Southwest unitholders at the Pioneer Southwest special meeting for approval. The Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board recommend that the Pioneer Southwest unitholders vote in favor of the merger proposal at the Pioneer Southwest special meeting.

The Pioneer Southwest Conflicts Committee considered many factors in making its determination, Special Approval and recommendation. The committee consulted with its financial and legal advisors and viewed the following factors as being generally positive or favorable in coming to its determination and related recommendation:

The exchange ratio of 0.2325 of a share of Pioneer common stock for each Pioneer Southwest common unit in the merger represents a premium of approximately 19% above the $26.00 closing price of Pioneer Southwest common units on May 6, 2013, based on the $133.54 closing price of shares of Pioneer common stock on May 6, 2013 (the day before Pioneer announced its proposal to acquire all of the Pioneer Southwest common units owned by the public).

The exchange ratio is fixed and therefore the value of the merger consideration payable to the Pioneer Southwest unitholders will increase in the event that the market price of shares Pioneer common stock increases prior to the closing.

In the merger, Pioneer Southwest unitholders will receive shares of Pioneer common stock, which have substantially more liquidity than Pioneer Southwest common units because of the significantly larger average daily trading volume of shares of Pioneer common stock and because Pioneer has a broader investor base and a larger public float.

The current and prospective environment and growth prospects for Pioneer Southwest if it continues as a standalone entity is limited as compared to the asset base, financial condition and growth prospects of Pioneer following the merger, taking into consideration Pioneer Southwest’s limited ability to invest capital on acquisitions of additional leasehold acreage, development of its existing leasehold acreage or additional projects due to the limited borrowing capacity under Pioneer Southwest’s credit facility.

Under current commodities prices and costs, Pioneer Southwest could continue its 3-rig program for the near and medium term, but Pioneer Southwest’s financial leverage would continue to increase and Pioneer Southwest would be unable to continue to run a 3-rig vertical program over the long-term and fund distributions without adding significant incremental debt.

Pioneer Southwest is not likely to be able to develop its stranded leasehold acreage and its Virtual 40s through horizontal drilling due to its stranded leasehold acreage position being non-contiguous, and Pioneer would potentially be better able to develop such stranded leasehold acreage and Virtual 40s because they are contiguous with Pioneer leasehold acreage.

The continuation of Pioneer Southwest’s vertical drilling program would likely reduce or eliminate the horizontal potential that may exist on Pioneer Southwest’s leasehold acreage as a result of increasing the density of vertical wells, which could result in future diminution in the value of Pioneer Southwest’s leasehold acreage if horizontal locations were no longer available.

Pioneer has a stronger balance sheet and credit profile than Pioneer Southwest.

The merger will allow Pioneer and Pioneer Southwest to achieve synergies in the form of cost savings and other efficiencies, including reduced SEC filing requirements and a reduction in the number of public company boards and other costs associated with multiple public companies.

The merger has the greatest likelihood of success of achieving in the short term the goals outlined above, as compared to other possible alternatives, including Pioneer Southwest’s raising additional cash in either the public equity or debt capital markets or raising additional cash from joint venture partners, which alternatives are dependent on conditions in the capital markets and third parties and which the Pioneer Southwest Conflicts Committee believes would not be as favorable to Pioneer Southwest as the merger.

Evercore rendered its opinion to the Pioneer Southwest Conflicts Committee and the independent directors of the Pioneer Southwest GP Board acting in such capacity that, as of August 9, 2013, and based upon and subject to the factors, procedures, assumptions, qualifications and limitations set forth

 

that certain Parsley stockholders holding, as of October 20, 2020, approximately 15.8% and 7.6% of the combined voting power of the issued and outstanding shares of Parsley common stock have entered into voting agreements with Pioneer obligating such stockholders to vote or cause to be voted, as applicable, all of their shares of Parsley Class A common stock and Parsley Class B common stock (with respect to any vote solicited by Parsley) and Parsley LLC units (with respect to any vote solicited by Parsley LLC) in itsfavor of the adoption of the merger agreement and against alternative transactions, as more fully described in the sections titled “Parsley Special Meeting—Voting and Support Agreement with Quantum” and “Parsley Special Meeting—Voting and Support Agreement with Bryan Sheffield”; and

Goldman Sachs’s and Morgan Stanley’s separate oral opinions rendered to the Pioneer board on October 20, 2020 and subsequently confirmed by delivery of their respective written opinion,opinions dated the same date, to the effect that, as of the date thereof and based upon and subject to the various assumptions made, procedures followed, matters considered and qualifications and limitations on the scope of review undertaken as set forth in such written opinions, the exchange ratio pursuant to the merger agreement was fair, from a financial point of view, to Pioneer. The full text of the written opinions of Goldman Sachs and Morgan Stanley to the Pioneer Southwest unaffiliated unitholders.board, each dated as of October 20, 2020, are attached as Annex B and Annex C, respectively, to this joint proxy statement/prospectus. For more information, see “—Opinions of Pioneer’s Financial Advisors.”

The Pioneer Southwest Conflicts Committee believes that the merger and the exchange ratio present the best opportunity to maximize value for the Pioneer Southwest unitholders.

The Pioneer Southwest Conflicts Committee has the ability to enter into discussions with another party in response to an unsolicited written offer if the Pioneer Southwest Conflicts Committee, after consultation with its outside legal counsel and financial advisor, determines in good faith (a) that the unsolicited written offer constitutes or could reasonably be expected to result inboard also considered a superior proposal, and (b) that the failure to take that action would be inconsistent with its duties under the Pioneer Southwest partnership agreement or applicable law.

The termsvariety of the merger agreement permit the Pioneer Southwest Conflicts Committee or the Pioneer Southwest GP Board to change its recommendation of the merger without payment of a termination fee (but with payment of certain of Pioneer’s expenses) if it has determined in good faith, after consultation with its outside legal counsel and financial advisors, that the failure to make such a change in recommendation would be inconsistent with its duties under the Pioneer Southwest partnership agreement or applicable law, provided that if the change in its recommendation is made in response to an acquisition proposal, such acquisition must be a superior proposal.

The Pioneer Southwest Conflicts Committee understands and has reviewed the overall market conditions, and has determined that, in light of these factors, the timing of the potential transaction is favorable to Pioneer Southwest.

The Pioneer Southwest Conflicts Committee has reviewed with its financial and legal advisors the financialrisks and other terms ofpotentially negative factors concerning the merger agreement and the related documents,transactions contemplated thereby. These factors included:

the possibility that the mergers may not be completed or that completion may be unduly delayed for reasons beyond the control of Pioneer or Parsley, including the conditionsfailure to the parties’ respective obligations and the termination provisions.

The Pioneer Southwest Conflicts Committee is familiar with, and understands, the businesses, assets, liabilities, results of operations, financial conditions and competitive positions and prospects of Pioneer Southwest and Pioneer.

The merger will eliminate potential conflicts of interest between the Pioneer Southwest unaffiliated unitholders and Pioneer and for persons holding executive positions with both Pioneer Southwest and Pioneer.

The Pioneer Conflicts Committee retained an independent reserve engineering advisor to evaluate the proved and non-proved reserves and undeveloped acreage.

Pioneer and Pioneer Southwest each have a strong commitment to complete the merger on the anticipated schedule.

The results of the due diligence investigations of Pioneer by legal counsel to the Pioneer Southwest Conflicts Committee and the Pioneer Southwest Conflicts Committee’s financial advisor were consistent with the expectationsobtain stockholder approval of the Pioneer Southwest GP Board with respect tostock issuance proposal or the strategic and financial benefits of the merger.Parsley merger proposal;

 

The terms and conditions of

that the exchange ratio in the merger were determined through arm’s-length negotiations between Pioneer and the Pioneer Southwest Conflicts Committee and their respective representatives and advisors.

The Pioneer Southwest Conflicts Committee retained independent financial and legal advisors with knowledge and experience with respect to public company merger and acquisition transactions, Pioneer’s and Pioneer Southwest’s industry generally, and Pioneer and Pioneer Southwest particularly, as well as substantial experience advising publicly traded limited partnerships and other companies with respect to transactions similar to the proposed transaction.

The Pioneer Southwest Conflicts Committee considered the following factors to be generally negative or unfavorable in making its determination, Special Approval and recommendation:

The exchange ratio isagreement provides for a fixed and there is a possibility that the pricenumber of shares of Pioneer common stock, could decline relative toand, as such, Pioneer stockholders cannot be certain at the time of the Pioneer Southwest common unit price priorspecial meeting of the market value of the merger consideration to closing, reducingbe paid, and the premium available topossibility that Pioneer Southwest unitholders.

stockholders could be adversely affected in the event that the market price of Pioneer common stock increases relative to the market price of Parsley Class A common stock between the date of the merger agreement and the closing of the mergers;

that there are significant risks inherent in integrating the operations of Parsley into Pioneer, including that the expected synergies may not be realized, and that successful integration will require the dedication of significant management resources, which will temporarily detract attention from the day-to-day businesses of the combined company;

 

Pioneer Southwest unitholders are not entitled to appraisal rights under

that the merger agreement provides that, in certain circumstances, Pioneer Southwest’s partnership agreementcould be required to pay a termination fee of $270.0 million to Parsley or Delaware law.an expense reimbursement fee of $90.0 million;

 

Pioneer has indicated to the Pioneer Southwest Conflicts Committee that Pioneer would not entertain an acquisition proposal relating to Pioneer Southwest from a third party and would not be willing to pursue any transaction involving the sale of assets or Pioneer Southwest common units to any third party. It is therefore highly unlikely that an unsolicited third party acquisition proposal or offer for the assets or common units of Pioneer Southwest would be made or entertained and it is unlikely

that the Pioneer Southwest Conflicts Committee could conduct a meaningful auction for the acquisition of Pioneer Southwest. Furthermore, even if such a third party proposal or offer were made, Pioneer Southwest is limited, under the merger agreement, in its ability to consider unsolicited offers from third parties not affiliated with Pioneer Southwest GP.

The Pioneer Southwest Conflicts Committee did not conduct an auction process or other solicitation of interest from third parties for the acquisition of Pioneer Southwest or of the Pioneer Southwest common units held by the Pioneer Southwest unaffiliated unitholders.

Because the merger agreement can be approved by holders of a majority of the outstanding Pioneer Southwest common units, and Pioneer USA already owns 52.4% of the outstanding Pioneer Southwest common units and has agreed to vote in favor of the merger proposal, the affirmative vote of additional Pioneer Southwest common unitholders is not needed to approve the merger proposal.

There is risk that the potential benefits sought in the mergermergers might not be fully realized.

There is risk that the merger might not be completed in a timely manner, or that the merger might not be consummated at all as a result of a failure to satisfy the conditions contained in the merger agreement, and aincluding failure to completereceive necessary regulatory approvals;

that Parsley’s obligation to close the mergers is conditioned on the approval of the holders of a majority of outstanding shares of Parsley Class A common stock and Parsley Class B common stock, voting together as one class, with respect to the Parsley merger proposal;

Parsley’s ability, under certain circumstances, to terminate the merger could negatively affectagreement in order to enter into an agreement providing for a superior proposal, provided that Parsley concurrently with such termination pays to Pioneer a termination fee of $135.0 million;

that the trading pricerestrictions on the conduct of Pioneer’s business prior to the consummation of the mergers, although believed to be reasonable and not unduly burdensome, may delay or prevent Pioneer Southwest common units.from undertaking business opportunities that may arise or other actions it would otherwise take with respect to the operations of Pioneer pending the consummation of the mergers;

 

Certain members

that the merger agreement restricts Pioneer’s ability to entertain other acquisition proposals unless certain conditions are satisfied;

the father-son relationship between Scott Sheffield, Pioneer’s Chief Executive Officer, and Bryan Sheffield, Parsley’s Executive Chairman and Chairman of managementthe Parsley board, and the potential for negative perceptions regarding that relationship in light of the mergers;

the substantial costs to be incurred in connection with the mergers, including the costs of integrating the businesses of Pioneer Southwest GPand Parsley, the TRA termination payments, the potential costs associated with the obligation of Parsley LLC to make an offer to repurchase certain Parsley notes at the applicable change of control purchase price, the anticipated costs associated with refinancing the Parsley notes and the Pioneer Southwest GP Board mayother transaction costs to be incurred in connection with the mergers;

that certain Parsley directors and executive officers have interests in the mergers that are different from, or in addition to, the interests of Parsley stockholders generally, including, among others, the TRA termination payments, severance rights and rights to continuing indemnification and directors’ and officers’ liability insurance described in the section titled “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers”;

the possibility that are different from thosethe $45 million expense reimbursement fee that Parsley would be required to pay under the merger agreement upon termination of the merger agreement under certain circumstances would be insufficient to compensate Pioneer Southwest unaffiliated unitholders.for its costs incurred in connection with the merger agreement;

 

The merger is structured

the possibility of losing key employees and skilled workers as a taxable transaction toresult of the Pioneer Southwest unitholders with no cash being paid as consideration toexpected consolidation of Pioneer’s and Parsley’s personnel when the Pioneer Southwest unitholders.mergers are completed; and

The foregoing

other risks of the type and nature described in the section titled “Risk Factors.”

This discussion of the information and factors considered by the Pioneer Southwestboard in reaching its conclusion and recommendations includes all of the material factors considered by the Pioneer board but is not intended to be exhaustive and is not provided in any specific order or ranking. In view of the wide variety of factors

considered by the Pioneer board in evaluating the merger agreement and the related transactions contemplated thereby, and the complexity of these matters, the Pioneer board did not find it practicable to, and did not attempt to, quantify, rank or otherwise assign relative weight to those factors. In addition, different members of the Pioneer board may have given different weight to different factors. The Pioneer board did not reach any specific conclusion with respect to any of the factors considered and instead conducted an overall analysis of such factors and determined that, in the aggregate, the potential benefits considered outweighed the potential risks or possible negative consequences of approving the merger agreement and the issuance of Pioneer common stock pursuant to the merger agreement.

It should be noted that this explanation of the reasoning of the Pioneer board and all other information presented in this section is forward-looking in nature and, therefore, should be read in light of the factors discussed in the section titled “Cautionary Statement Regarding Forward-Looking Statements.”

Recommendation of the Parsley Board and Reasons for the Mergers

By unanimous vote, the Parsley board, at a meeting held on October 20, 2020, (i) declared that the merger agreement and the transactions contemplated thereby (including the integrated mergers) were fair to, and in the best interests of, Parsley, the Parsley stockholders and the Parsley LLC unitholders, (ii) approved and declared advisable the merger agreement and the transactions contemplated by the merger agreement (including the integrated mergers) and (iii) recommended that the Parsley stockholders approve and adopt the merger agreement and the transactions contemplated by the merger agreement (including the integrated mergers). The Parsley board unanimously recommends that Parsley stockholders vote “FOR” the Parsley merger proposal and “FOR” the Parsley compensation proposal.

In evaluating the merger agreement, the mergers and the other transaction documents (including the transactions contemplated by those documents), the Parsley board consulted with Parsley’s senior management, outside legal counsel, financial advisors and tax advisors. The Parsley board determined that entering into the merger agreement with Pioneer provided the best alternative for maximizing stockholder value reasonably available to Parsley, including when compared to continuing to operate on a stand-alone basis, strategic combinations with other counterparties and potential asset monetization opportunities.

In recommending that Parsley stockholders vote their shares of Parsley common stock to approve and adopt the merger agreement, the Parsley board also considered a number of factors, including the following factors (not necessarily in order of relative importance) that the Parsley board viewed as generally positive or favorable to its determination, approval and related recommendation:

Attractive Value and Merger Consideration. The attractive value and nature of the consideration to be received in the mergers by Parsley stockholders, including the fact that:

the stock-for-stock merger allows Parsley stockholders to participate in the value of the combined company, including expected future free cash flow growth, which the Parsley board viewed as an important opportunity for Parsley stockholders to enhance long-term returns;

based on the closing trading price of Pioneer common stock of $90.26 on October 16, 2020 (the last trading day prior to Parsley and Pioneer agreeing on the exchange ratio), the merger consideration represented an implied value of $11.30 per share of Parsley Class A common stock, a premium of 16.6% to the average closing price of the shares of Parsley Class A common stock for the 20 trading days prior and up to October 16, 2020;

based on the closing trading price of Pioneer common stock of $88.15 on October 13, 2020 (the last trading day that stock prices of Pioneer and Parsley were “unaffected” by prevailing reports of the acquisition of Concho Resources by ConocoPhillips), the merger consideration represented an implied value of $11.04 per share of Parsley Class A common stock, a premium of 14.6% to the closing price of the shares of Parsley Class A common stock as of October 13, 2020;

based on the closing trading price of Pioneer common stock of $87.05 on October 19, 2020 (the last trading day prior to the Parsley board’s approval of the mergers), the merger consideration represented an implied value of $10.90 per share of Parsley Class A common stock, a premium of 7.9% to the closing price of shares of Parsley Class A common stock as of October 19, 2020;

based on the exchange ratio, Parsley stockholders would own approximately 24% of the combined company on a pro forma basis, representing a greater interest for Parsley stockholders in the combined company versus the implied exchange ratio relative to the six-month, one-year, and two-year historical market-based exchange ratios; and

the trading market for Pioneer common stock should provide Parsley stockholders who receive Pioneer common stock in the mergers with greater trading liquidity than is currently available for Parsley common stock.

Benefits of a Combined Company. The belief of the Parsley board that the company resulting from a merger of Pioneer and Parsley would be well positioned to achieve future free cash flow growth and generate superior returns for Parsley’s former stockholders, including as a result of:

the benefits associated with consolidating the assets of the two companies, including the expected annual operating synergies of approximately $325.0 million associated with the following:

creating a predominantly contiguous, interlocking footprint in the Permian Basin with adjacent acreage footprints that allows for increased capital efficiency and the drilling of extended laterals where lease configurations of the separate companies prevented long-lateral horizontal wells;

leveraging existing and anticipated future water infrastructure to reduce fresh water utilization and to optimize produced water utilization by seeking third-party revenue opportunities and further reducing truck-hauling of produced water;

realizing operational efficiencies and reductions in general and administrative expenses driven by the utilization of shared facilities, overlapping operations and scale efficiencies, which is expected to result in $100 million of annual general and administrative synergies; and

Pioneer’s mid-investment grade rating supports reduced interest expense of the combined company, which is expected to gradually reduce leverage and preserve the combined company’s financial flexibility, enhancing the return of capital to shareholders;

the increased size and scale of the combined company, which is expected to afford new structural advantages including a lower cost of capital, a fortified balance sheet and economies of scale;

the strong focus on enhancing environmental, social and governance capabilities, which is expected to enable the combined company to aggressively pursue further improvements and to promote a culture that prioritizes sustainable operations;

the reinforced commitment to operating near the low end of the global oil supply cost curve, with a shared focus on capital efficiency and competitive, high operating margins of both Pioneer and Parsley merging in the combined company;

combined Permian Basin acreage of approximately 930 thousand net acres, with no federal acreage, and a combined production base of 328 thousand net barrels of oil per day and 558 thousand net barrels oil equivalent per day based on reported production for the second quarter of 2020;

the combined company will be less levered than Parsley on a stand-alone basis, which together with the increased scale and operational synergies, will better position the combined company to operate through periods of low commodity prices and/or negative sentiment towards the energy industry from equity and debt investors;

the increased dividend base and enhanced variable dividend proposition of the combined company;

strengthening the combined company’s ability to return capital to shareholders, compared to Parsley on a stand-alone basis, by combining two companies with attractive free cash flow profiles, which is expected to enhance the combined company’s investment framework;

the caliber of Pioneer’s executive management team, which is expected to continue as the executive management team of the combined company; and

the quality and experience of the Pioneer board members, who are expected to remain on the combined company board, and the fact that two board members from the current Parsley board are expected to join the board of the combined company;

Continuation of Stand-alone Parsley. The Parsley board’s consideration of Parsley’s business, prospects and other strategic opportunities, and the Parsley board’s belief that there are certain risks associated with continuing to operate as a stand-alone company, including:

the risk that Parsley may become less competitive, on a relative basis, compared with larger Permian Basin producers, given scale-related advantages available to larger companies, including with respect to cost savings achieved by larger companies through economies of scale and greater purchasing power;

the risks related to the ongoing trend of investors seeking to allocate capital to the largest and most financially stable and flexible producers, which has contributed to accelerating consolidation of the U.S. upstream oil and gas industry;

the risks and uncertainties related to the ongoing and unprecedented disruption to oil demand, due to the COVID-19 pandemic, unpredictable geopolitical dynamics, including actions of foreign oil producers, and expected consumption of hydrocarbons trending lower long-term, which risks are relatively greater were Parsley to continue to operate as a stand-alone company with relatively higher leverage and a smaller market capitalization than the combined company; and

the risk that it will become increasingly difficult for Parsley to grow its production and reserves through acquisitions given that many of the most attractive acquisition targets have been acquired by larger companies.

The Parsley board also considered the following factors as being generally positive or favorable in making its determination, approval and related recommendation:

Alternative Combination Transactions. The Parsley board considered alternative transactions and, following a review of such alternatives with the assistance of Parsley’s management and in consultation with Credit Suisse, and after taking into account the results of outreach to potential other counterparties described in the section titled “The Mergers—Background of the Mergers,” all of which declined to submit a proposal or primarily indicated interest only in a no-premium merger, believed that it was unlikely that an alternative bidder would consummate a transaction on superior terms and provide Parsley stockholders more valuable consideration than provided in connection with the mergers;

Opportunity to Receive Alternative Acquisition Proposals and to Change the Parsley Board’s Recommendation Upon Receipt of a Superior Proposal. The Parsley board considered the terms of the merger agreement related to Parsley’s ability to respond to unsolicited acquisition proposals and determined that third parties would be unlikely to be deterred from making an acquisition proposal by the provisions of the merger agreement, including because the Parsley board may, under certain circumstances, furnish information or enter into discussions in connection with an acquisition proposal or terminate the merger agreement to enter into an alternative acquisition agreement providing for a superior proposal. In this regard, the Parsley board considered that:

subject to its compliance with the merger agreement, the Parsley board can change its recommendation to Parsley stockholders with respect to the approval and adoption of the merger agreement prior to the approval and adoption of the merger agreement by the vote of its stockholders if it determines, with

respect to a superior proposal or an intervening event, in good faith (after consultation with its outside legal counsel) that the failure to take such action would be inconsistent with the Parsley board’s fiduciary duties under applicable law;

subject to its compliance with the merger agreement, the Parsley board may terminate the merger agreement in order to enter into an alternative acquisition agreement providing for a superior proposal; and

while the merger agreement contains a termination fee of $135.0 million, representing approximately 3% of Parsley’s equity value as of the date of the merger agreement, that Parsley would be required to pay to Pioneer in certain circumstances, including if (i) Pioneer terminates the merger agreement in connection with a change in the Parsley board’s recommendation to stockholders with respect to approval and adoption of the merger agreement, (ii) Parsley terminates the merger agreement in order to enter into an alternative acquisition agreement providing for a superior proposal or (iii) under certain circumstances, within 12 months of termination of the merger agreement, Parsley enters into or recommends an agreement in respect of any acquisition proposal, or a transaction in respect of any acquisition proposal with respect to Parsley is consummated, the Parsley board believed that this fee is reasonable in light of the circumstances and the overall terms of the merger agreement, consistent with fees in comparable transactions and not preclusive of other offers.

Post-Merger Corporate Governance. The Parsley board considered that the merger agreement provides that the Pioneer board must take all necessary corporate action to increase the size of the combined company’s board by two and to appoint Matt Gallagher and A.R. Alameddine of the Parsley board as directors of the combined company, or, in the event Mr. Gallagher and/or Mr. Alameddine is unwilling or unable to serve as a member of the Pioneer board at the time of such appointment, then another member or members of the Parsley board that is determined by the Pioneer board in good faith to be independent with respect to his or her service on the Pioneer board and that is mutually agreed between Parsley and Pioneer will be appointed to the Pioneer board to fill such vacancy or vacancies on the Pioneer board in lieu of Mr. Gallagher and/or Mr. Alameddine, as applicable, and that the Pioneer board (or an authorized committee of the Pioneer board) will, in a manner consistent with its ordinary policies and practices, appoint each new board designee to a committee of the Pioneer board within 90 days following the closing date, in a manner consistent with its ordinary policies and practices;

Tax Considerations for Parsley Class A Stockholders. The Parsley board considered that the integrated mergers, taken together, are intended to qualify for U.S. federal income tax purposes as a “reorganization” within the meaning of Section 368(a) of the Code;

Opinions of Parsley’s Financial Advisors. The Parsley board considered:

the opinion of Credit Suisse, dated October 20, 2020, to the Parsley board, with respect to the fairness, from a financial point of view, to the Parsley Class A stockholders of the exchange ratio to be received by the holders of shares of Parsley Class A common stock with respect to their shares of Parsley Class A common stock in the first merger and the fairness, from a financial point of view, to the Parsley Class B stockholders of the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger pursuant to the merger agreement, which opinion was based on and subject to various assumptions made, procedures followed, qualifications, limitations and other matters considered, as more fully described below in the section titled “The Mergers—Opinions of Parsley’s Financial Advisors—Opinion of Credit Suisse Securities (USA) LLC;” and

the opinion of Wells Fargo Securities, dated October 20, 2020, to the Parsley board, to the effect that, as of such date and based upon and subject to the assumptions made, procedures followed, matters considered and limitations and qualifications on the review undertaken by Wells Fargo Securities in preparing the opinion, the exchange ratio in the proposed mergers was fair, from a financial point of view, to the Parsley Class A stockholders and holders of Parsley LLC stapled units, as more fully described below in the section titled “The Mergers—Opinions of Parsley’s Financial Advisors—Opinion of Wells Fargo Securities, LLC.���

Terms of the Merger Agreement. The Parsley board reviewed and considered the terms of the merger agreement, taken as a whole, including the parties’ representations, warranties and covenants, and the circumstances under which the merger agreement may be terminated, and concluded that such terms are reasonable and fair to Parsley, the Parsley stockholders and the Parsley LLC unitholders. The Parsley board also reviewed and considered the conditions to the completion of the mergers, and concluded that while the completion of the mergers is subject to regulatory approvals, such approvals were not likely to prevent the completion of the mergers.

The Parsley board also considered a number of uncertainties, risks and factors it deemed generally negative or unfavorable in making its determination, approval and related recommendation, including the following (not necessarily in order of relative importance):

Transacting During a Downturn in the Energy Industry. The Parsley board considered that the mergers with Pioneer would occur at a time when commodity prices and the stock prices of energy companies, including Parsley, are depressed;

Merger Consideration. The Parsley board considered that, because the merger consideration is based on a fixed exchange ratio rather than a fixed value, Parsley stockholders bear the risk of a decrease in the trading price of Pioneer common stock during the pendency of the mergers and the fact that the merger agreement does not provide Parsley with a value-based termination right;

Interim Operating Covenants. The Parsley board considered the restrictions on the conduct of Parsley’s and its subsidiaries’ businesses during the period between the execution of the merger agreement and the completion of the mergers as set forth in the merger agreement;

Risks Associated with the Pendency of the Mergers. The risks and contingencies relating to the announcement and pendency of the mergers (including the likelihood of litigation or other opposition brought by or on behalf of Parsley stockholders or Pioneer stockholders challenging the mergers and the other transactions contemplated by the merger agreement) and the risks and costs to Parsley if the mergers are not completed in a timely manner or if the mergers do not close at all, including potential employee attrition, the impact on Parsley’s relationships with third parties and the effect termination of the merger agreement may have on the trading price of Parsley Class A common stock and Parsley’s operating results;

Pioneer Change of Recommendation; Pioneer Stockholder Vote. The Parsley board considered the right of the Pioneer board to change its recommendation to Pioneer stockholders in certain circumstances, subject to certain conditions (including considering any adjustments to the merger agreement proposed by Parsley and payment to Parsley of a $270.0 million termination fee). The Parsley board also considered that, even if the merger agreement is approved by Parsley stockholders, Pioneer stockholders may not approve the Pioneer stock issuance proposal, which is a closing condition of the mergers;

Opportunity to Receive Acquisition Proposals and to Terminate the Mergers in Order to Accept a Superior Proposal; Termination Fees; Expense Reimbursement. The Parsley board considered the possibility that a third party may be willing to enter into a strategic combination with Parsley on terms more favorable than the mergers. In connection therewith, the Parsley board considered the terms of the merger agreement relating to no-shop covenants and termination fees and the potential that such provisions might deter alternative bidders that might have been willing to submit an acquisition proposal to Parsley. The Parsley board also considered that, under specified circumstances, Parsley may be required to pay a termination fee or expenses in the event the merger agreement is terminated and the effect this could have on Parsley, including:

the possibility that the termination fee could discourage other potential parties from making an acquisition proposal, although the Parsley board believed that the termination fee was reasonable in amount and would not unduly deter any other party that might be interested in making an acquisition proposal;

if the mergers are not consummated, Parsley will generally be obligated to pay its own expenses incident to preparing for and entering into and carrying out its obligations under the merger agreement and the transactions contemplated by the merger agreement; and

the requirement that if the merger agreement is terminated as a result of the failure to obtain approval of the Parsley merger proposal by Parsley stockholders, Parsley would be obligated to reimburse Pioneer for $45.0 million of its expenses in connection with the merger agreement;

Regulatory Approval. The Parsley board considered that the mergers and the related transactions require regulatory approval to complete such transactions and the risk that the applicable governmental entities may seek to impose unfavorable terms or conditions, or otherwise fail to grant, such approval;

Interests of Certain Parsley Directors and Executive Officers and Other Concerns Related to Conflicts Committeeor the Potential Appearance of Conflicts. The Parsley board considered that Parsley’s directors and executive officers may have interests in the mergers that may be different from, or in addition to, those of Parsley stockholders. For more information about such interests, see the section titled “—Interests of Certain Parsley Directors and Executive Officers in the Mergers.” In addition, the Parsley board considered the possibility of increased scrutiny of the mergers, given the familial relationship between Scott Sheffield, the President and Chief Executive Officer of Pioneer, and Bryan Sheffield, the Executive Chairman of Parsley and Scott Sheffield’s son;

Merger Costs. The costs associated with the completion of the mergers, including Parsley management’s time and energy and potential opportunity cost that will be incurred by the combined company as a result of the mergers, such as the TRA termination payments that will become due, as described in the section titled “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers”;

Taxable Transaction for Parsley LLC Unitholders. The Parsley board considered that the mergers and the related transactions would be a taxable event for Parsley LLC unitholders and that certain Parsley LLC unitholders would not receive a TRA termination payment; and

Other Risks. The Parsley board considered risks of the type and nature described under the sections titled “Cautionary Statement Regarding Forward-Looking Statements” and “Risk Factors.”

The Parsley board believed that, overall, the potential benefits of the mergers to Parsley stockholders outweighed the risks and uncertainties of the mergers.

The foregoing discussion of factors considered by the Parsley board is not intended to be exhaustive, but includes the material factors considered by the committee considered.Parsley board. In viewlight of the variety of factors considered in connection with its evaluation of the merger,mergers, the committeeParsley board did not find it practicable to, and did not, quantify or otherwise assign specificrelative weights to the specific factors considered in reaching its approvaldeterminations and determination, Special Approval and recommendation. In addition,recommendations. Moreover, each member of the members ofParsley board applied his or her own personal business judgment to the committeeprocess and may have given differing weightsdifferent weight to different factors. On balance,The Parsley board did not undertake to make any specific determination as to whether any factor, or any particular aspect of any factor, supported or did not support its ultimate determination. The Parsley board based its recommendation on the committee believed that the advantagestotality of the merger outweighed the negative factors it considered.information presented.

Pioneer’s Reasons for the MergerCertain Pioneer Unaudited Prospective Financial and Operating Information

The Pioneer Board consulted with management and Pioneer’s outside legal counsel and considered many factors in approving the merger, including the following:

The consolidation of the properties of Pioneer and Pioneer Southwest in West Texas is expected to facilitate Pioneer’s plans to fully and optimally develop the area utilizing horizontal drilling.

The merger will simplify Pioneer’s commercial and organizational structure resulting from Pioneer’s ownership of 100% of the equity interests in Pioneer Southwest immediately following the merger, which will streamline Pioneer’s corporate structure, reduce complexity and enhance transparency for debt and equity investors.

The merger will maintain Pioneer’s financial flexibilitydoes not as a resultmatter of doing a stock-for-unit exchange versus a cash transaction.

Unaudited Financial Projections of Pioneer and Pioneer Southwest

Neither Pioneer nor Pioneer Southwest routinely publishescourse make public long-term forecasts or internal projections as to long-term future financial performance, revenues, production, earnings or earnings.other results due to, among other reasons, the uncertainty of the underlying assumptions and estimates. However, in connection with its evaluation of the proposed merger,mergers, Pioneer’s management ofprepared certain unaudited internal financial forecasts with respect to Pioneer, and Pioneer Southwest GP prepared projections that included anticipated future financial performance of Pioneer for the years 2013, 2014 and 2015 and of Pioneer Southwest for the years 2013, 2014, 2015 and 2016. These projections were based on projections used for regular internal planning purposes.

The non-public projections for Pioneer and Pioneer Southwestwhich were provided to Evercore for use and consideration in its financial analysis and in preparation of its opinion to the Pioneer Southwest Conflicts Committeeboard and Parsley, as well as Pioneer’s and Parsley’s respective financial advisors, in connection

with the independent directorsproposed mergers (collectively, the “Pioneer projections”). Certain of the Pioneer Southwest GP Board acting in such capacity. The projections were also presentedprovided to the Pioneer Southwest GP Board. A summary of these projections is included below to give Pioneer Southwest unitholders access to certain non-public unaudited projections that were made available to EvercorePioneer’s financial advisors for their use and the Pioneer Southwest GP Boardreliance in connection with the proposed merger.

Pioneerfinancial analyses that Goldman Sachs and Pioneer Southwest each caution you that uncertainties are inherentMorgan Stanley performed in projectionsconnection with their respective opinions described in “—Opinions of any kind. None ofPioneer’s Financial Advisors.” In addition, Pioneer Pioneer Southwest or any of their affiliates, advisors, officers, directors or representatives has made or makes any representation or can give any assurance to any Pioneer Southwest unitholder or any other person regarding the ultimate performance of Pioneer or Pioneer Southwest compared to the summarized information set forth below or that any projected results will be achieved.

The projections set forth below summarize the most recent projections provided to Evercore, theParsley management certain projected production and operating data relating to Pioneer Southwest GP Board and the Pioneer Board prior to the execution of the merger agreement.prepared by Pioneer’s management, summarized below. The inclusion of the following summary projections in this proxy statement/prospectusinformation should not be regarded as an indication that any of Pioneer, Pioneer SouthwestParsley, their respective advisors, or theirother representatives or any other recipient of this information considered, or consider the projectionsnow considers, it to be a reliable or accurate predictionnecessarily predictive of actual future performance or events, or that it should be construed as financial guidance, and thesuch summary projections set forth below should not be relied uponon as such.

This information was prepared solely for internal use and is subjective in many respects. While presented with numeric specificity, the unaudited prospective financial and operating information reflects numerous estimates and assumptions that are inherently uncertain and may be beyond the control of Pioneer’s management, including, among others, Pioneer’s and Parsley’s future results, oil and gas industry activity, commodity prices, demand for crude oil and natural gas, the availability of financing to fund the exploration and development costs associated with the respective projected drilling programs, general economic and regulatory conditions, and other matters described in “Cautionary Statement Regarding Forward-Looking Statements” and “Risk Factors.” The accompanying projections wereunaudited prospective financial and operating information reflects both assumptions as to certain business decisions that are subject to change and, in many respects, subjective judgment, and thus is susceptible to multiple interpretations and periodic revisions based on actual experience and business developments. Pioneer and Parsley can give no assurance that the unaudited prospective financial and operating information and the underlying estimates and assumptions will be realized. In addition, since the unaudited prospective financial and operating information covers multiple years, such information by its nature becomes less predictive with each successive year. Actual results may differ materially from those set forth below, and important factors that may affect actual results and cause the unaudited prospective financial information to be inaccurate include, but are not limited to, risks and uncertainties relating to its business, industry performance, the regulatory environment, general business and economic conditions, and other matters described in “Risk Factors.” Please also see “Cautionary Statement Regarding Forward-Looking Statements” and “Where You Can Find More Information.”

The unaudited prospective financial and operating information was not prepared with a view toward public disclosure, ornor was it prepared with a view toward compliance with GAAP, the published guidelines of the SEC, or the guidelines established by the American Institute of Certified Public Accountants but, in the viewfor preparation and presentation of the management of Pioneer and Pioneer Southwest GP, were prepared on a reasonable basis and reflected the best currently available estimates and judgments at the time of execution of the merger agreement.

prospective financial information. Neither Ernst & Young LLP nor any otherPioneer’s independent registered public accounting firm, hasnor any other independent accountants, have compiled, examined, or performed any procedures with respect to the projections,unaudited prospective financial and operating information contained herein, nor has ithave they expressed any opinion or any other form of assurance on such information or its achievability, and assumes no responsibilityachievability. The report of the independent registered public accounting firm to Pioneer contained in its Annual Report on Form 10-K for and disclaims any association with, the projections. The Ernst & Young LLP reportsyear ended December 31, 2019, which is incorporated by reference into this joint proxy statement/prospectus, relaterelates to historical financial information of Pioneer, and Pioneer Southwest. Such reports dosuch report does not extend to the projections included below and should not be read to do so.

In developingFurthermore, the projections,unaudited prospective financial and operating information does not take into account any circumstances or events occurring after the management ofdate it was prepared. Pioneer and Parsley can give no assurance that, had the unaudited prospective financial and operating information been prepared either as of the date of this joint proxy statement/prospectus or as of the date of the Pioneer Southwest GP made numerousspecial meeting and the Parsley special meeting, similar estimates and assumptions would be used. Except as required by applicable securities laws, Pioneer and Parsley do not intend to, and disclaim any obligation to, make publicly available any update or other revision to the unaudited prospective financial and operating information to reflect circumstances existing since their preparation or to reflect the occurrence of unanticipated events, even in the event that any or all of the underlying assumptions are shown to be in error, including with respect to the accounting treatment of the mergers under GAAP, or to reflect changes in general economic or industry conditions. The unaudited prospective financial and operating information does not take into account all the possible financial and other effects on Pioneer or Parsley

of the mergers, the effect on Pioneer or Parsley of any business or strategic decision or action that has been or will be taken as a result of the merger agreement having been executed, or the effect of any business or strategic decisions or actions which would likely have been taken if the merger agreement had not been executed, but which were instead altered, accelerated, postponed, or not taken in anticipation of the mergers. Further, the unaudited prospective financial and operating information does not take into account the effect on Pioneer or Parsley of any possible failure of the mergers to occur. None of Pioneer, Parsley or their respective affiliates, officers, directors, advisors, or other representatives has made, makes, or is authorized in the future to make any representation to any Pioneer or Parsley stockholder or other person regarding Pioneer’s or Parsley’s ultimate performance compared to the information contained in the unaudited prospective financial and operating information or that the forecasted results will be achieved. The inclusion of the unaudited prospective financial and operating information herein should not be deemed an admission or representation by Pioneer, Parsley, their respective advisors or other representatives or any other person that it is viewed as material information of Pioneer or Parsley, particularly in light of the inherent risks and uncertainties associated with such forecasts. The summary of the unaudited prospective financial and operating information included below is not being included to influence your decision whether to vote in favor of the Pioneer stock issuance proposal, or any other proposal to be considered at the special meetings, but is being provided solely because it was made available to the Pioneer board, Parsley, and Pioneer’s and Parsley’s respective financial advisors in connection with the mergers.

In light of the foregoing, and considering that the special meetings will be held several months after the unaudited prospective financial and operating information was prepared, as well as the uncertainties inherent in any forecasted information, Pioneer stockholders and Parsley stockholders are cautioned not to place undue reliance on such information, and Pioneer and Parsley urge all Pioneer Southwest, as applicable, including:stockholders and Parsley stockholders to review Pioneer’s most recent SEC filings for a description of Pioneer’s reported financial results and Parsley’s most recent SEC filings for a description of Parsley’s reported financial results. Please see “Where You Can Find More Information.”

In preparing the prospective financial and operating information described below, the management team of Pioneer used the following oil and natural gas price assumptions, which are based on New York Mercantile Exchange (“NYMEX”) strip pricing available on September 22, 2020:

 

the time period covered by the forecasts:
   Q4 2020E   2021E   2022E   2023E   2024E 

Brent Oil ($/bbl)

  $41.93   $44.29   $46.67   $48.48   $49.91 

WTI Oil ($/bbl)

  $39.83   $41.80   $43.38   $44.52   $45.61 

Henry Hub Gas ($/Mcf)

  $2.52   $2.93   $2.65   $2.51   $2.47 

Waha Gas ($/Mcf)(1)

   —     $2.60   $2.26   $2.06   $2.02 

 

(1)

Waha gas price assumptions were used by Pioneer exclusively with respect to the Pioneer projections for Parsley.

Pioneer: 2013

Pioneer Projections for Pioneer

The following table sets forth certain summarized prospective financial and operating information regarding Pioneer on a standalone basis for the fourth quarter of 2020 and for the years 2021 through 2015;

Pioneer Southwest: 2013 through 2016.

2024, based on the prices of oil, gas and NGLs, utilizing two price decks,assumptions indicated above, which were as follows:

Oil (per barrel): $85; gas (per Mcf): $4.25; NGLs (per barrel): $34;

Oil (per barrel): $100; gas (per Mcf): $4.25; NGLs (per barrel): $40.

PDP production consistent with estimates contained in reserve reportsinformation was prepared by Pioneer personnelmanagement and audited by independent reserve engineers;

the amount and timing of dividends or distributionsauthorized by Pioneer and Pioneer Southwest, which were assumed to be used and relied upon by Pioneer’s financial advisors in connection with the financial analyses that Goldman Sachs and Morgan Stanley performed in connection with their respective opinions described in “—Opinions of Pioneer’s Financial Advisors.” The following unaudited prospective financial and operating information should not be regarded as follows:
an indication that Pioneer considered, or now considers, it to be necessarily predictive of actual future performance or events, or that it should be construed as financial guidance, and such information does not take into account any circumstances or events occurring after thedate it was prepared, including, among other things, Pioneer’s anticipated or actual capital allocation relating to the Pioneer assets post-closing of the mergers.

 

   Unaudited Pioneer Financial and Operating Forecast
Provided by Pioneer Management
 
($ in millions, except production)  Q4 2020E(5)   2021E   2022E   2023E   2024E 

Production (Mboe/d)

   363    389    414    437    459 

EBITDAX(1)

  $592   $2,764   $3,039   $3,335   $3,656 

Discretionary cash flow(2)

  $571   $2,685   $2,964   $3,265   $3,586 

Capital expenditures(3)

  $374   $1,955   $1,833   $2,041   $2,250 

Unlevered free cash flow(4)

  $318   $622   $1,043   $1,212   $1,350 

(1)

EBITDAX is defined as earnings before interest, income taxes, depreciation, depletion, amortization, and exploration expense, stock-based compensation, non-cash derivative amortization, geological and geophysical and seismic expenses, accretion of discount on asset retirement obligations and other non-cash items. EBITDAX is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(2)

Discretionary cash flow is defined as EBITDAX, less cash interest expense. The discretionary cash flow used by Credit Suisse and provided by Pioneer reflected immaterial adjustments to the amounts set forth in the table above. Discretionary cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(3)

Capital expenditures includes expenses related to certain other property, plant and equipment and other assets, and excludes geological and geophysical and seismic expenses, general and administrative expenses and asset retirement obligations. Capital expenditures used by Credit Suisse and Wells Fargo Securities and provided by Pioneer exclude expenses related to certain other property, plant and equipment and other assets and include geological and geophysical and seismic expenses, general and administrative expenses and asset retirement obligations.

(4)

Unlevered free cash flow was used by Goldman Sachs and Morgan Stanley and calculated as discretionary cash flow, less changes in working capital, cash geological and geophysical and seismic expenses, capital expenditures, and other income and other cash flow items, plus cash interest expense. For purposes of Goldman Sachs’ financial analysis and opinion, unlevered free cash flow also excluded stock-based compensation of $75 million per annum (which compensation is included in the amounts set forth in the table above). Unlevered free cash flow as used by Credit Suisse and Wells Fargo Securities was calculated at Parsley’s instruction.

(5)

Q4 2020E forecasts were used exclusively by Goldman Sachs and Credit Suisse with respect to their respective financial analyses and opinions.

Pioneer: $0.04 semiannual dividend during 2013, 2014

Pioneer Projections for Parsley

Pioneer management also provided to the Pioneer board certain unaudited prospective financial and 2015;

operating information with respect to Parsley on a standalone basis, which was generally derived from information provided by Parsley management (the “Pioneer projections for Parsley”). Such forecasts with respect to Parsley also were provided to Pioneer’s financial advisors and were authorized by Pioneer Southwest: $0.52 perfor their use and reliance in connection with the financial analyses that Goldman Sachs and Morgan Stanley performed in connection with their respective opinions described in “—Opinions of Pioneer’s Financial Advisors.” The following table sets forth a summary of this prospective financial and operating information regarding Parsley for the fourth quarter distribution during 2013, 2014, 2015of 2020 and 2016.

for the availability and cost of capitalyears 2021 through 2024 as prepared by Pioneer management based on then-current credit facilitiesthe price assumptions indicated above. The following unaudited prospective financial and operating information should not be regarded as an indication that Pioneer considered, or now considers, it to be necessarily predictive of actual future performance or events, or that it should be construed as financial guidance, and such information does not take into account any circumstances or events occurring after the date it was prepared, including, among other things, Pioneer’s anticipated or actual capital allocation relating to the Parsley assets post-closing of the mergers.

   Unaudited Parsley Financial and Operating Forecast
Provided by Pioneer Management
 
($ in millions, except production)  Q4 2020E   2021E   2022E   2023E   2024E 

Production (Mboe/d)

   178    177    175    182    180 

EBITDAX(1)

  $326   $1,271   $1,320   $1,416   $1,404 

Discretionary cash flow(2)

  $287   $1,123   $1,173   $1,269   $1,256 

Capital expenditures(3)

  $145   $591   $656   $591   $594 

Unlevered free cash flow(4)

  $181   $641   $639   $800   $785 

(1)

EBITDAX is defined as earnings before interest, income taxes, depreciation, depletion, amortization, and exploration expense. EBITDAX is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(2)

Discretionary cash flow is defined as EBITDAX, less other expense and interest expense. Discretionary cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(3)

Capital expenditures excludes costs related to property, plant and equipment and other assets of $39 million for 2021E, $25 million for 2022E, $25 million for 2023E and $25 million for 2024E.

(4)

Unlevered free cash flow was used by Goldman Sachs and Morgan Stanley, and calculated as EBITDAX, less capital expenditures and total acquisition and divestiture and other property, plant and equipment expenses.

(5)

Q4 2020E forecasts were used exclusively by Goldman Sachs with respect to its financial analysis and opinion.

Pioneer Management Projections for eachExpected Synergies and Cost Savings

Pioneer management provided to the Pioneer board, Pioneer’s financial advisors, Parsley and Parsley’s financial advisors certain estimates of Pioneer and Pioneer Southwest;

organic drilling opportunities and the amounts and timing of relatedexpected synergies anticipated by Pioneer management to result from the mergers, which included general and administrative expense cost savings of approximately $95 million for 2021, $90 million for 2022, $82 million for 2023 and $77 million for 2024 and annual interest savings of approximately $79 million for the years 2021 through 2024 (collectively, the “Pioneer expected synergies”).

In addition to the Pioneer expected synergies above, Pioneer management also provided to the Pioneer board as part of its consideration of the strategic, financial, and operational merits of a merger with Parsley estimates regarding anticipated refinancing costs as a result of the proposed mergers, totally approximately $174 million in 2021 (the “Pioneer refinancing costs”). The Pioneer refinancing costs were also provided to

Pioneer’s financial advisors. The Pioneer expected synergies and potentialthe Pioneer refinancing costs were authorized by Pioneer to be used and relied upon by Pioneer’s financial advisors in connection with the financial analyses that Goldman Sachs and Morgan Stanley performed in connection with their respective opinions described in “—Opinions of Pioneer’s Financial Advisors.”

Certain Parsley Unaudited Prospective Financial and Operating Information

Parsley as a matter of course does not make public long-term projections as to its future production, earnings or other results given, among other reasons, the uncertainty of the underlying assumptions and estimates. However, in connection with the Parsley board’s evaluation of the proposed mergers, Parsley management prepared and provided to the Parsley board certain unaudited prospective financial and operating information relating to Parsley, which is referred to as the “Parsley projections for Parsley.” The Parsley projections for Parsley include financial forecasts reflecting a current operating model for Parsley under two alternative price decks, as further described as Parsley Case A and Parsley Case B below, and a net asset value reserve-based model for Parsley under two alternative price decks, as further described as Parsley Case C and Parsley Case D below. In addition, Pioneer provided to Parsley management certain of the Pioneer projections, which are summarized in “—Certain Pioneer Unaudited Prospective Financial and Operating Information,” and projected production and operating data relating to Pioneer prepared by Pioneer’s management (which were adjusted to reflect, among other things, associated riskings and alternative commodity price assumptions agreed by Parsley management), which are referred to herein as the “Pioneer adjusted production and operating projections”, based on certain oil and gas reserve information prepared by Pioneer’s management regarding its oil and gas reserves. The Parsley projections for Parsley, the Pioneer adjusted production and operating projections and the Pioneer projections were provided to Parsley’s financial advisors, Credit Suisse and Wells Fargo Securities, which were authorized by Parsley to use and rely upon the Parsley projections for Parsley, the Pioneer adjusted production and operating projections and the Pioneer projections, and, at Parsley’s instruction, Credit Suisse relied upon the Parsley projections for Parsley, the Pioneer adjusted production and operating projections and the Pioneer projections and Wells Fargo Securities relied upon Parsley Case A and the Pioneer projections in connection with their respective analyses and opinions described in the section titled “—Opinions of Parsley’s Financial Advisors.”

The summary of the unaudited prospective financial and operating information below is not included to influence the decision of Parsley stockholders or Pioneer stockholders whether to vote in favor of the Parsley merger proposal, the Pioneer stock issuance proposal or any other proposal to be considered at the special meetings, but is provided solely because it was made available to the Parsley board and Parsley’s financial advisors in connection with the mergers. The inclusion of the below information should not be regarded as an indication that any of Parsley, Pioneer, their respective advisors or other representatives or any otherrecipient of this information considered—or now considers—it to be necessarily predictive of actual future results, or that it should be construed as financial guidance.

This information was prepared solely for internal use and is subjective in many respects. While presented with numerical specificity, the unaudited prospective financial and operating information reflects numerous estimates and assumptions that are inherently uncertain and may be beyond the control of Parsley’s or Pioneer’s management, including, among others, Parsley’s and Pioneer’s future results, oil and gas industry activity, commodity prices, demand for crude oil and natural gas, the availability of financing to fund the exploration and development costs associated with Parsley’s and Pioneer’s respective projected drilling programs, general economic returns; and

regulatory conditions, and other generalmatters described in “Cautionary Statement Regarding Forward-Looking Statements” and “Risk Factors.”

The unaudited prospective financial and operating information also reflects assumptions as to certain business marketdecisions that are subject to change and subjective judgment that is susceptible to multiple interpretations and periodic revisions based on actual experience and business developments. Parsley can give no assurance that the unaudited prospective financial assumptions.and operating information and the underlying estimates and

Additional

assumptions were madewill be realized. In addition, because the unaudited prospective financial and operating information covers multiple years, such information by its nature becomes less predictive with each successive year. This information constitutes “forward-looking statements” and actual results may differ materially and adversely from those projected. The unaudited prospective financial and operating information was not prepared with a view toward public disclosure, nor was it prepared with a view toward compliance with GAAP, published guidelines of the SEC or the guidelines established by the American Institute of Certified Public Accountants for preparation and presentation of prospective financial information. Neither Parsley’s independent registered public accounting firm, nor any other independent accountants, have compiled, examined or performed any procedures with respect to the size, availability, timingunaudited prospective financial and anticipatedoperating information contained herein, nor have they expressed any opinion or any other form of assurance on such information or its achievability. The report of the independent registered public accounting firm to Parsley contained in its Annual Report on Form 10-K for the year ended December 31, 2019, which is incorporated by reference into this joint proxy statement/prospectus, relates to historical financial information of Parsley, and such report does not extend to the projections included below and should not be read to do so.

Furthermore, the unaudited prospective financial and operating information does not take into account any circumstances or events occurring after the date it was prepared. Parsley can give no assurance that, had the unaudited prospective financial and operating information been prepared as of the date of this joint proxy statement/prospectus, similar estimates and assumptions would be used. Except as required by applicable securities laws, Parsley does not intend to, and disclaims any obligation to, make publicly available any update or other revision to the unaudited prospective financial and operating information to reflect circumstances existing since its preparation or to reflect the occurrence of unanticipated events, even in the event that any or all of the underlying assumptions are shown to be inappropriate, including with respect to the accounting treatment of the mergers under GAAP, or to reflect changes in general economic or industry conditions. The unaudited prospective financial and operating information does not take into account all the possible financial and other effects on Parsley or Pioneer of the mergers, the effect on Parsley or Pioneer of any business or strategic decision or action that has been or will be taken as a result of the merger agreement having been executed, or the effect of any business or strategic decisions or actions which would likely have been taken if the merger agreement had not been executed, but which were instead altered, accelerated, postponed or not taken in anticipation of the mergers. Further, the unaudited prospective financial and operating information does not take into account the effect on Parsley or Pioneer of any possible failure of the mergers to occur. None of Parsley, Pioneer or their respective affiliates, officers, directors, advisors or other representatives has made, makes or is authorized in the future to make any representation to any stockholder or other person regarding Parsley’s or Pioneer’s ultimate performance compared to the information contained in the unaudited prospective financial and operating information or that the forecasted results will be achieved. The inclusion of the unaudited prospective financial and operating information herein should not be deemed an admission or representation by Parsley, Pioneer or their respective advisors or other representatives or any other person that it is viewed as material information of Parsley or Pioneer, particularly in light of the inherent risks and uncertainties associated with such forecasts.

In light of the foregoing, and considering that the special meetings will be held several months after the unaudited prospective financial and operating information was prepared, as well as the uncertainties inherent in any forecasted information, Parsley stockholders and Pioneer stockholders are cautioned not to place undue reliance on such information and are encouraged to review Parsley’s and Pioneer’s most recent SEC filings for a description of Parsley’s and Pioneer’s respective reported financial results. See the section titled “Where You Can Find More Information.”

Parsley Management Projections for Parsley

In preparing the Parsley unaudited forecasted financial and operating information described below, the management team of Parsley used the following oil and natural gas prices (with oil prices based on NYMEX WTI pricing, natural gas prices based on Waha or Henry Hub pricing, as specified below, and NGL prices based on Mont Belvieu pricing), based on oil and natural gas strip pricing as of September 22, 2020 and October 15,

2020. The management team of Parsley used Parsley management production and capital expenditures projections in connection with oil and natural gas strip pricing.

Oil and Gas Strip Pricing (as of September 22, 2020)

 
   2020E   2021E   2022E   2023E   2024E 

Commodity Prices

          

Oil ($/Bbl)

  $38.69   $41.80   $43.38   $44.52   $45.61 

Gas (Waha)($/Mcf)

  $1.11   $2.60   $2.26   $2.06   $2.02 

NGL ($/Bbl)

  $16.43   $17.70   $16.70   $16.10   $15.84 

Oil and Gas Strip Pricing (as of October 15, 2020)

 
   2H’20E   2020E   2021E   2022E   2023E   2024E 

Commodity Prices

            

Oil ($/Bbl)

  $41.00   $39.01   $42.57   $43.40   $44.04   $44.76 

Gas (Waha)($/Mcf)

   —     $1.24   $2.73   $2.31   $2.05   $2.01 

Gas (Henry Hub)($/Mmbtu)

  $2.57    —     $3.07   $2.70   $2.50   $2.46 

NGL ($/Bbl)

  $18.46   $16.77   $18.57   $17.54   $17.12   $17.11 

In addition to the assumptions with respect to commodity prices, the Parsley unaudited forecasted financial and operating information is based on various other assumptions, including, but not limited to, the following principal assumptions: no unannounced acquisitions; normal weather in the forward-looking periods; cash flowsgeneral and administrative expenditures of $115 million per year; lease operating expense increasing on a linear basis from drilling capital investments. During$256 million in 2020E to $295 million in 2024E; no debt refinancing or early repayment of debt; and no material fluctuations in interest rate assumptions over the forward-looking periods. The Parsley unaudited forecasted financial and operating information also reflects assumptions regarding the continuing nature of ordinary course of each of Pioneer’s and Pioneer Southwest’s budget cycles,operations that may be subject to change.

Parsley management of each company developed their respective company’s projected drilling program, each ofapplied the current operating model to two different pricing scenarios, which is reflected in the projections disclosedare referred to in this section. The capital expendituressection as “Parsley Case A” and “Parsley Case B,” and applied the net asset value reserve-based model to two different pricing scenarios, which are referred to in this section as “Parsley Case C” and “Parsley Case D”:

Parsley Case A: Parsley current operating model forecasts through 2024E based on customary strategic planning and budgeting process utilizing reasonable available estimates and judgments at the time of Pioneer were adjusted to reflect drilling activity in eachits preparation, based on oil and gas (Waha) strip pricing scenario to match capital expenditures more closely to cash flow. Management’s projections did not account for any transaction expenses related toas of September 22, 2020.

Parsley Case B: Parsley current operating model forecasts through 2024E based on customary strategic planning and budgeting process utilizing reasonable available estimates and judgments at the merger. Alltime of these assumptions involve variables making them difficult to predict,its preparation, based on oil and most are beyondgas (Waha) strip pricing as of October 15, 2020.

Parsley Case C: Parsley net asset value reserve-based model of existing proved developed producing reserves and undeveloped reserves through the controlend of Pioneertheir economic lives, based on oil and Pioneer Southwest. Although managementgas (Henry Hub) strip pricing as of PioneerOctober 15, 2020 through 2024E and Pioneer Southwest GP believes that there was a reasonable basis forthereafter holding pricing flat.

Parsley Case D: Parsley net asset value reserve-based model of existing proved developed producing reserves and undeveloped reserves through the projectionsend of their economic lives, based on oil and underlying assumptions, any assumptions for near-term projected cases remain uncertain,gas (Henry Hub) strip pricing as of October 15, 2020 through 2024E and the risk of inaccuracy increases with the length of the forecasted period.thereafter $50 per barrel oil pricing and holding other pricing flat.

Pioneer Unaudited Financial Projections

The following tables set forth projectedpresent selected unaudited forecasted financial and operating information of Parsley contained in the Parsley projections for Pioneer for 2013, 2014 and 2015.

The following table reflects financial information for the prices of oil at $85 per barrel, gas at $4.25 per Mcf and NGLs at $34 per barrel.Parsley:

 

   2013E   2014E   2015E 
   (Dollars in millions) 

Net income(1)

  $585.2    $536.2    $781.3  

Cash flow from operations

  $2,052.3    $2,383.1    $2,820.7  

Daily oil, gas and NGL production (BOEPD)(2)

   181,672     209,013     240,701  

Net long-term debt(3)

  $2,504.8    $2,968.3    $3,372.2  

The following table reflects financial information for the prices of oil at $100 per barrel, gas at $4.25 per Mcf and NGLs at $40 per barrel.

   2013E   2014E   2015E 
   (Dollars in millions) 

Net income(1)

  $500.5    $935.5    $1,362.6  

Cash flow from operations

  $2,185.0    $2,787.3    $3,683.4  

Daily oil, gas and NGL production (BOEPD)(2)

   181,672     212,501     252,832  

Net long-term debt(3)

  $2,372.2    $2,638.4    $2,581.4  

Parsley Case A

 
   2020E  2021E  2022E  2023E  2024E 
   ($ in millions) 

Oil and Gas Strip Pricing (as of September 22, 2020)

      

Production (MBoe/d)

   186   177   175   182   180 

EBITDAX(1)

  $1,277  $1,271  $1,320  $1,416  $1,404 

Discretionary free cash flow(2)

  $1,098  $1,123  $1,173  $1,269  $1,256 

Capital expenditures(3)

  $(657 $(591 $(656 $(591 $(594

Levered free cash flow(4)

  $441  $532  $517  $678  $663 

Other (5)

  $(18 $—    $—    $—    $—   

Interest expense

  $(161 $(148 $(147 $(147 $(147

Unlevered free cash flow(6)

  $620  $680  $664  $825  $810 

 

(1)Includes the effects

EBITDAX is defined as earnings before interest, income taxes, depreciation, depletion, amortization and exploration expense. EBITDAX is not a measure of existing derivative contracts.financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(2)Production includes Pioneer

Discretionary free cash flow is defined as EBITDAX less other expense and Pioneer Southwest oninterest expense. Discretionary free cash flow is not a 100% consolidated basis.measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(3)Net long-term debt

Capital expenditures excludes costs related to property, plant and equipment and other assets of $39 million for 2021E, $25 million for 2022E, $25 million for 2023E and $25 million for 2024E.

(4)

Levered free cash flow is defined as long-termEBITDAX less other expense, interest expense, capital expenditures and cash taxes (no cash taxes projected during the forecast period). Levered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(5)

Other expense represents hedge settlements (changes in accrual), restructuring costs, cash exploration and abandonment costs, amortization of debt less cash.related costs, including interest income, rig stacking expense, non-cash plugging and abandonment adjustments and other non-cash operating cash flow items.

Pioneer Southwest Unaudited Financial Projections

The following tables set forth projected financial information for Pioneer Southwest for 2013, 2014, 2015 and 2016.

The following table reflects financial information for the prices of oil at $85 per barrel, gas at $4.25 per Mcf and NGLs at $34 per barrel.
(6)

Unlevered free cash flow is defined as EBITDAX less capital expenditures and cash taxes (no cash taxes projected during the forecast period). Unlevered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

 

   2013E   2014E   2015E   2016E 
   (Dollars in millions) 

Net income(1)

  $109.2    $92.1    $97.4    $100.8  

Cash flow from operations

  $106.4    $146.1    $126.9    $132.2  

Daily oil, gas and NGL production (BOEPD)

   8,357     9,236     9,878     10,418  

Net long-term debt(2)

  $210.8    $256.9    $322.3    $382.3  

The following table reflects financial information for the prices of oil at $100 per barrel, gas at $4.25 per Mcf and NGLs at $40 per barrel.

   2013E   2014E   2015E   2016E 
   (Dollars in millions) 

Net income(1)

  $90.9    $125.3    $133.8    $140.4  

Cash flow from operations

  $112.4    $152.1    $163.2    $171.7  

Daily oil, gas and NGL production (BOEPD)

   8,357     9,236     9,878     10,418  

Net long-term debt(2)

  $204.8    $244.9    $274.0    $294.6  

Parsley Case B

 
   2020E  2021E  2022E  2023E  2024E 
   ($ in millions) 

Oil and Gas Strip Pricing (as of October 15, 2020)

      

Production (MBoe/d)

   186   177   175   182   180 

EBITDAX(1)

  $1,294  $1,279  $1,332  $1,408  $1,384 

Discretionary free cash flow(2)

  $1,115  $1,131  $1,185  $1,261  $1,237 

Capital expenditures(3)

  $(657 $(591 $(656 $(591 $(594

Levered free cash flow(4)

  $458  $540  $529  $670  $643 

Other (5)

  $(18 $—    $—    $—    $—   

Interest expense

  $(161 $(148 $(147 $(147 $(147

Unlevered free cash flow(6)

  $637  $689  $677  $817  $790 

 

(1)Includes the effects

EBITDAX is defined as earnings before interest, income taxes, depreciation, depletion, amortization and exploration expense. EBITDAX is not a measure of existing derivative contracts.financial performance under GAAP. Accordingly, it

should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.
(2)Net long-term debt

Discretionary free cash flow is defined as long-termEBITDAX less other expense and interest expense. Discretionary free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(3)

Capital expenditures excludes costs related to property, plant and equipment and other assets of $39 million for 2021E, $25 million for 2022E, $25 million for 2023E and $25 million for 2024E.

(4)

Levered free cash flow is defined as EBITDAX less other expense, interest expense, capital expenditures and cash taxes (no cash taxes projected during the forecast period). Levered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(5)

Other expense represents hedge settlements (changes in accrual), restructuring costs, cash exploration and abandonment costs, amortization of debt related costs, including interest income, rig stacking expense, non-cash plugging and abandonment adjustments and other non-cash operating cash flow items.

(6)

Unlevered free cash flow is defined as EBITDAX less cash.capital expenditures and cash taxes (no cash taxes projected during the forecast period). Unlevered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

NEITHER PIONEER NOR PIONEER SOUTHWEST INTENDS TO UPDATE OR OTHERWISE REVISE THE ABOVE PROJECTIONS TO REFLECT CIRCUMSTANCES EXISTING AFTER THE DATE WHEN MADE OR TO REFLECT THE OCCURRENCE OF FUTURE EVENTS, EVEN IF ANY OR ALL OF THE ASSUMPTIONS UNDERLYING SUCH PROJECTIONS ARE NO LONGER APPROPRIATE.

Parsley Case C

 
   2H’20E  2021E  2022E  2023E  2024E  2025E  2026E 
   ($ in millions) 

Oil and Gas Strip Pricing (as of October 15, 2020)

        

Production (MBoe/d)

   176   170   169   174   180   188   197 

EBITDA(1)

  $621  $1,249  $1,261  $1,295  $1,352  $1,397  $1,446 

Cash taxes

  $—    $—    $—    $—    $—    $—    $(30

Capital expenditures

  $(330 $(642 $(710 $(750 $(773 $(787 $(792

Unlevered free cash flow(2)

  $291  $607  $551  $545  $578  $611  $623 

(1)

EBITDA is defined as earnings before interest, income taxes, depreciation, depletion and amortization. EBITDA is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(2)

Unlevered free cash flow is defined as EBITDA less cash taxes and capital expenditures. Unlevered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

Parsley Case D

 
   2H’20E  2021E  2022E  2023E  2024E  2025E  2026E 
   ($ in millions) 

Oil and Gas Strip Pricing (as of October 15, 2020)

        

Production (MBoe/d)

   176   170   169   174   180   188   197 

EBITDA(1)

  $621  $1,249  $1,261  $1,295  $1,352  $1,615  $1,672 

Cash taxes

  $—    $—    $—    $—    $—    $—    $(110

Capital expenditures

  $(330 $(642 $(710 $(750 $(773 $(787 $(792

Unlevered free cash flow(2)

  $291  $607  $551  $545  $578  $828  $769 

(1)

EBITDA is defined as earnings before interest, income taxes, depreciation, depletion and amortization. EBITDA is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(2)

Unlevered free cash flow is defined as EBITDA less cash taxes and capital expenditures. Unlevered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

Pioneer adjusted production and operating projections

The management team of Parsley used the following oil and natural gas prices (with oil prices based on NYMEX WTI pricing, natural gas prices based on Henry Hub pricing and NGL prices based on Mont Belvieu pricing) in the Pioneer adjusted production and operating projections, based on oil and natural gas strip pricing as of October 15, 2020.

Oil and Gas Strip Pricing (as of October 15, 2020)

 
   2H’20E   2021E   2022E   2023E   2024E 

Commodity Prices

          

Oil ($/Bbl)

  $41.00   $42.57   $43.40   $44.04   $44.76 

Gas($/Mmbtu)

  $2.57   $3.07   $2.70   $2.50   $2.46 

Parsley management applied to the net asset value reserve-based model two different pricing scenarios, which are referred to in this section as “Pioneer Case A” and “Pioneer Case B”:

Pioneer Case A: Pioneer net asset value reserve-based model of existing proved developed producing reserves and undeveloped reserves through the end of their economic lives, based on oil and gas strip pricing as of October 15, 2020 through 2024E and thereafter holding pricing flat.

Pioneer Case B: Pioneer net asset value reserve-based model of existing proved developed producing reserves and undeveloped reserves through the end of their economic lives, based on oil and gas strip pricing as of October 15, 2020 through 2024E and thereafter $50 per barrel oil pricing and holding other pricing flat.

The following tables present selected unaudited forecasted financial and operating information of Pioneer contained in the Pioneer adjusted production and operating projections:

Pioneer Case A

 
   2H’20E  2021E  2022E  2023E  2024E  2025E  2026E 
   ($ in millions) 

Oil and Gas Strip Pricing (as of October 15, 2020)

        

Production (MBoe/d)

   361   351   353   361   373   389   404 

EBITDA(1)

  $1,044  $2,285  $2,409  $2,546  $2,717  $2,840  $3,067 

Cash taxes

  $—    $—    $—    $—    $(47 $(105 $(313

Capital expenditures

  $(546 $(1,242 $(1,356 $(1,420 $(1,485 $(1,470 $(1,477

Unlevered free cash flow(2)

  $497  $1,043  $1,053  $1,125  $1,185  $1,264  $1,277 

(1)

EBITDA is defined as earnings before interest, income taxes, depreciation, depletion and amortization. EBITDA is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(2)

Unlevered free cash flow is defined as EBITDA less cash taxes and capital expenditures. Unlevered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net cash provided by operating activities, net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

Pioneer Case B

 
   2H’20E  2021E  2022E  2023E  2024E  2025E  2026E 
   ($ in millions) 

Oil and Gas Strip Pricing (as of October 15, 2020)

        

Production (MBoe/d)

   361   351   353   361   373   389   404 

EBITDA(1)

  $1,044  $2,285  $2,409  $2,546  $2,717  $3,293  $3,537 

Cash taxes

  $—    $—    $—    $—    $(47 $(210 $(421

Capital expenditures

  $(546 $(1,242 $(1,356 $(1,420 $(1,485 $(1,470 $(1,477

Unlevered free cash flow(2)

  $497  $1,043  $1,053  $1,125  $1,185  $1,613  $1,639 

(1)

EBITDA is defined as earnings before interest, income taxes, depreciation, depletion and amortization. EBITDA is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

(2)

Unlevered free cash flow is defined as EBITDA less cash taxes and capital expenditures. Unlevered free cash flow is not a measure of financial performance under GAAP. Accordingly, it should not be considered as a substitute for net income (loss), operating income (loss) or other measures prepared in accordance with GAAP.

Parsley does not intend to update or otherwise revise the above unaudited financial and operating forecasts to reflect circumstances existing after the date when made or to reflect the occurrence of future events, even in the event that any or all of the assumptions underlying such unaudited financial and operating forecasts are no longer appropriate, except as may be required by applicable law.

Opinions of Pioneer’s Financial Advisors

Opinion of the Pioneer Southwest Conflicts Committee’s Financial AdvisorGoldman Sachs & Co. LLC

The Pioneer Southwest Conflicts Committee and Evercore agreed in principle to Evercore’s engagement on or about May 31, 2013, at which point Evercore began its due diligence and preliminary valuation work, and the two parties entered into their written engagement letter on June 17, 2013, for Evercore to act as financial advisor to the Pioneer Southwest Conflicts Committee in connection with the proposal by Pioneer to acquire all of the

publicly held Pioneer Southwest common units in exchange for shares of Pioneer common stock. The Pioneer Southwest Conflicts Committee engaged Evercore to act as a financial advisor based on its qualifications, experience and reputation. Evercore is an internationally recognized investment banking firm and is regularly engaged in the valuation of businesses in connection with mergers and acquisitions, leveraged buyouts, competitive biddings, private placements and valuations for corporate and other purposes. On August 9, 2013, atAt a meeting of the Pioneer Southwest Conflicts Committee, Evercoreboard on October 20, 2020, Goldman Sachs rendered to the Pioneer board its oral opinion, subsequently confirmed by delivery of a written opinion, dated October 20, 2020, to the Pioneer board, to the effect that, as of August 9, 2013the date of Goldman Sachs’ written opinion and based upon and subject to the factors procedures,and assumptions qualifications and limitations set forth in itsGoldman Sachs’ written opinion, the exchange ratio ispursuant to the merger agreement was fair from a financial point of view to the Pioneer Southwest unaffiliated unitholders.Pioneer.

The full text of the written opinion of Evercore,Goldman Sachs, dated as of August 9, 2013,October 20, 2020, which sets forth among other things, the assumptions made, procedures followed, assumptions made, matters considered, and qualifications and limitations on the scope of review undertaken in rendering itsconnection with the opinion, is attached as Annex B to this joint proxy statement/prospectus and is incorporated by reference in its entirety into this proxy statement/prospectus. You are urged to read Evercore’s opinion carefully and in its entirety. Evercore’s opinion was addressed to, and provided for the information and benefit of, the Pioneer Southwest Conflicts Committee (in its capacity as such) in connection with its evaluation of the fairness, from a financial point of view, of the exchange ratio to be received by the Pioneer Southwest unaffiliated unitholders, and once the merger agreement was approved by the Pioneer Southwest Conflicts Committee, for the information and benefit of the independent directors of the Pioneer Southwest GP Board, and did not address any other aspects or implications of the merger. The opinion does not constitute a recommendation to the Pioneer Southwest Conflicts Committee, the independent directors of the Pioneer Southwest GP Board or to any other persons in respect of the merger, including as to how any holder of Pioneer Southwest common units should act or vote in respect of the merger.Annex B. The summary of the EvercoreGoldman Sachs’ opinion set forth hereincontained in this joint proxy statement/prospectus is qualified in its entirety by reference to the full text of Goldman Sachs’ written opinion. Goldman Sachs’ advisory services and opinion were provided for the information and assistance of the Pioneer board in connection with its consideration of the mergers and the opinion includeddoes not constitute a recommendation as Annex B.to how any Pioneer stockholder should vote with respect to the Pioneer stock issuance or any other matter.

In connection with rendering itsdelivering the opinion described above and performing its related financial analyses, Evercore,Goldman Sachs reviewed, among other things:

 

Reviewed a draft of

the merger agreement and the voting agreement, each dated August 9, 2013;agreement;

 

Reviewed

annual reports to stockholders and Annual Reports on Form 10-K of Pioneer and Parsley for the five years ended December 31, 2019;

certain interim reports to stockholders and Quarterly Reports on Form 10-Q of Pioneer and Parsley;

certain other communications from Pioneer and Parsley to their respective stockholders;

certain publicly available businessresearch analyst reports for Pioneer and financial information relating to Pioneer SouthwestParsley; and Pioneer that Evercore deemed to be relevant, including publicly available research analysts’ estimates;

 

Reviewed certain non-public

certain internal financial analyses and forecasts for Parsley on a stand-alone basis prepared by its management and adjusted by the management of Pioneer, certain internal financial analyses and forecasts for Pioneer on a stand-alone basis prepared by the management of Pioneer and certain internal financial analyses and forecasts for Pioneer on a pro forma basis giving effect to the proposed transaction prepared by the management of Pioneer, in each case as approved for Goldman Sachs’ use by Pioneer (collectively referred to as the Pioneer projections, as described in the section titled “—Certain Pioneer Unaudited Prospective Financial and Operating Information”), including certain operating synergies projected by the management of Pioneer to result from the proposed transaction, as approved for Goldman Sachs’ use by Pioneer (referred to as the Pioneer expected synergies, as described in the section titled “—Certain Pioneer Unaudited Prospective Financial and Operating Information”).

Goldman Sachs also held discussions with members of the senior managements of Pioneer and Parsley regarding their assessment of the past and current business operations, financial statementscondition and other non-public financialfuture prospects of Parsley and operating data relating to Pioneer Southwest and Pioneer that were prepared and furnished to Evercore bywith the members of senior management of Pioneer and Pioneer Southwest GP;

Reviewed an internal report regarding Pioneer Southwest’s proved and non-proved reserves as prepared by Pioneer;

Reviewed an internal report regarding Pioneer’s proved and non-proved reserves as prepared by Pioneer;

Reviewed a report regarding Pioneer Southwest’s proved and non-proved reserves as prepared by Russell K. Hall;

Discussedtheir assessment of the past and current business operations, current financial condition financial projections and proved and non-proved reserves of Pioneer Southwest and Pioneer with managementfuture prospects of Pioneer and Pioneer Southwest GP (including their views on the risks and uncertainties of achieving such projections);

Compared the financial performance of Pioneer Southwest and Pioneerstrategic rationale for, and the pricespotential benefits of, the mergers; reviewed the reported price and trading activity for the shares of Pioneer Southwest common units and Pioneer common stock and the shares of Parsley Class A common stock; compared certain financial and stock market information for Pioneer and Parsley with thatsimilar information for certain other companies the securities of which are publicly traded; reviewed the financial terms of certain publicly traded companiesrecent business combinations in the oil and partnershipsgas exploration and their securities that Evercore deemed relevant;

Compared the financial performance of Pioneer Southwestproduction industry; and the valuation multiples implied by the merger with those of certain other transactions that Evercore deemed relevant;

Compared the financial performance of Pioneer with the valuation multiples of certain transactions that Evercore deemed relevant;

Reviewed certain research analyst estimates of the future financial performance of Pioneer Southwest and Pioneer that Evercore deemed relevant; and

Performedperformed such other analysesstudies and examinations, reviewed such other informationanalyses, and considered such other factors, that Evercoreas Goldman Sachs deemed appropriate for purposes of providing its opinion.

For purposes of its analyses and opinion, Evercore assumed and relied upon, without undertaking any independent verification of, the accuracy and completeness of the information made available to, discussed with or reviewed by Evercore, and Evercore undertook no responsibility therefor. With respect to the financial projections of Pioneer Southwest and Pioneer that were furnished to Evercore, Evercore relied upon the assurances of management of Pioneer and Pioneer Southwest GP that such financial projections had been reasonably prepared by Pioneer and Pioneer Southwest GP on bases reflecting the best currently available estimates and good faith judgments of the future competitive, operating and regulatory environments and related financial performance of Pioneer Southwest and Pioneer. Evercore expressed no view as to any such financial projections or the assumptions on which they were based.appropriate.

For purposes of rendering its opinion, EvercoreGoldman Sachs, with the consent of the Pioneer board, relied upon and assumed the accuracy and completeness of all of the financial, legal, regulatory, tax, accounting and other information provided to, discussed with or reviewed by, Goldman Sachs, without assuming any responsibility for independent verification thereof. In that regard, Goldman Sachs assumed with the consent of the Pioneer Southwest Conflicts Committee,board that the final versions of all documents reviewed by Evercore in draft form,Pioneer projections, including the merger agreementPioneer expected synergies, were reasonably prepared on a basis reflecting the best then available estimates and the voting agreement, would conform in all material respects to the drafts reviewed by Evercore, that the representations and warranties of each party contained in the merger agreement and the voting agreement were true and correct, that each party would perform alljudgments of the covenants and agreements required to be performed by it under the merger agreement and the voting agreement and that all conditions to the consummationmanagement of Pioneer. Goldman Sachs did not make an independent evaluation, appraisal or geological or technical assessment of the merger would be satisfied without waiverassets and liabilities (including any contingent, derivative or modification thereof. Evercore furtherother off-balance-sheet assets and liabilities) of Pioneer, Parsley, Parsley LLC or any of their respective subsidiaries and Goldman Sachs was not furnished with any such evaluation or appraisal. Goldman Sachs assumed with the consent of the Pioneer Southwest Conflicts Committee, that all governmental, regulatory or other consents and approvals or releases necessary for the consummation of the mergermergers would be obtained without any delay, limitation, restriction or condition that would have an adverse effect on Pioneer, SouthwestParsley or Parsley LLC or on the expected benefits of the mergers in any way meaningful to Goldman Sachs’ analysis. Goldman Sachs also assumed that the mergers would be consummated on the terms set forth in the merger agreement, without the waiver or modification of any term or condition the effect of which would be in any way meaningful to its analysis.

Goldman Sachs’ opinion did not address the underlying business decision of Pioneer to engage in the mergers, or the consummationrelative merits of the mergers as compared to any strategic alternatives that may be available to Pioneer; nor did it address any legal, regulatory, tax or accounting matters. Goldman Sachs’ opinion addressed only the fairness from a financial point of view to Pioneer, as of the date of its written opinion, of the exchange ratio pursuant to the merger agreement. Goldman Sachs did not express any view on, and its opinion did not address, any other term or aspect of the merger agreement or materially reduce the benefitsmergers or any term or aspect of any other agreement or instrument contemplated by the merger agreement or entered into or amended in connection with the mergers, including, the fairness of the mergermergers to, or any consideration received in connection therewith by, the holders of any class of securities, creditors, or other constituencies of Pioneer; nor as to the fairness of the amount or nature of any compensation to be paid or payable to any of the officers, directors or employees of Pioneer, Southwest common units.Parsley or Parsley LLC, or any class of such persons, in connection with the mergers, whether relative to

Evercore

the exchange ratio pursuant to the merger agreement or otherwise. Goldman Sachs did not make, nor did it assumeexpress any responsibility for making,opinion as to the prices at which shares of Pioneer common stock or shares of Parsley Class A common stock would trade at any independent valuationtime, as to the potential effects of volatility in the credit, financial and stock markets on Pioneer, Parsley, Parsley LLC, or appraisalthe mergers, or as to the impact of the assets or liabilities (contingent or otherwise) of Pioneer Southwest or any of its subsidiaries, nor was Evercore furnished with any such appraisals, nor did Evercore evaluatemergers on the solvency or fair valueviability of Pioneer, SouthwestParsley or anyParsley LLC or the ability of its subsidiaries under any statePioneer, Parsley or federal laws relatingParsley LLC to bankruptcy, insolvency or similar matters. Evercore’spay their respective obligations when they come due. Goldman Sachs’ opinion was necessarily based on economic, monetary, market and other conditions as in effect on, and the information made available to EvercoreGoldman Sachs as of, the date of its opinion. Subsequent developments may affect Evercore’swritten opinion and Evercore does not have any obligation to update, reviseGoldman Sachs assumed no responsibility for updating, revising or reaffirmreaffirming its opinion.

Evercore was not asked to pass upon, and expressed no opinion with respect to, any matter other than the fairness of the exchange ratio, from a financial point of view, as ofbased on circumstances, developments or events occurring after the date of its written opinion. Goldman Sachs’ advisory services and its opinion were provided for the information and assistance of the Pioneer board in connection with its consideration of the mergers and the opinion does not constitute a recommendation as to how any Pioneer stockholder should vote with respect to the Pioneer Southwest unaffiliated unitholders. Evercore did not express any opinion as to the fairness, financial or otherwise, of the merger to,stock issuance or any consideration received in connection therewithother matter. Goldman Sachs’ opinion was approved by the holdersa fairness committee of any other securities, creditors or other constituenciesGoldman Sachs.

Summary of Pioneer Southwest, nor as to the amount or nature of any compensation payable or to be received by any member of management or employee of Pioneer Southwest in connection with the merger. Evercore expressed no opinion as to what the actual value of the Pioneer common stock will be when issued in connection with the merger or the price at which Pioneer Southwest common units will trade at any time. In its opinion, Evercore did not address the relative merits of the merger as compared to other business or financial strategies or opportunities that might be available to Pioneer Southwest, nor did it address the underlying business decision of Pioneer Southwest to engage in the merger. Evercore’s opinion noted

Financial Analyses

that Evercore is not a legal, regulatory, accounting or tax expert and that Evercore assumed the accuracy and completeness of assessments by Pioneer Southwest and its advisors with respect to legal, regulatory, accounting and tax matters. In addition, Pioneer Southwest did not authorize Evercore to solicit, and Evercore did not solicit, any third party indications of interest for the purchase of all or any part of Pioneer Southwest.

Set forth belowThe following is a summary of the material financial analyses performedpresented by Evercore and reviewed withGoldman Sachs to the Pioneer Southwest Conflicts Committee on August 9, 2013,board in connection with rendering its opinion to the Pioneer Southwest Conflicts Committee. Each analysis was provided toboard the Pioneer Southwest Conflicts Committee.opinion described above. The following summary, however, does not purport to be a complete description of the financial analyses performed by Evercore. In connection with arriving at its opinion, Evercore considered all of its analyses as a whole, andGoldman Sachs, nor does the order of the analyses described and the results of these analyses do not represent any relative importance or particular weight given to thesethose analyses by Evercore.Goldman Sachs. Some of the summaries of the financial analyses include information presented in tabular format. The tables must be read together with the full text of each summary and are alone not a complete description of Goldman Sachs’ financial analyses. Except as otherwise noted, the following quantitative information, to the extent that it is based on market data, is based on market data (including the closing prices for Pioneer Southwest common units and shares of Pioneer common stock) thatas it existed on August 7, 2013,or before October 19, 2020, the last completed trading day prior to Goldman Sachs’ delivery of its opinion to the Pioneer board, and is not necessarily indicative of current or future market conditions.

Implied Premia and Multiple Analysis

Goldman Sachs calculated and compared certain premia and multiples using various prices per share of Parsley Class A common stock and the implied value of the merger consideration to be paid by Pioneer for each share of Parsley Class A common stock and Parsley LLC stapled unit pursuant to the merger agreement. For purposes of its analysis, Goldman Sachs calculated an implied value of the merger consideration of $10.90 (the “implied merger consideration value”) by multiplying the exchange ratio of 0.1252 pursuant to the merger agreement by $87.05, the closing price for the shares of Pioneer common stock on October 19, 2020.

Goldman Sachs calculated the following:

The premium represented by the implied merger consideration value of $10.90 per share of Parsley Class A common stock and Parsley LLC stapled unit relative to:

$10.10, the closing price of the shares of Parsley Class A common stock on October 19, 2020 (the “Parsley pre-announcement closing price”);

$9.71, the volume weighted average price (“VWAP”) of the shares of Parsley Class A common stock over the 20-trading-day period ended October 19, 2020 (the “20-Day VWAP”);

$9.74, the VWAP of the shares of Parsley Class A common stock over the 30-trading-day period ended October 19, 2020 (the “30-Day VWAP”);

$11.02, the VWAP of the shares of Parsley Class A common stock over the one calendar year period ended October 19, 2020 (the “One-Year VWAP”);

$20.00, the highest daily closing price of the shares of Parsley Class A common stock over the 52-week period ended October 19, 2020 (the “52-week high”); and

$4.12, the lowest daily closing price of the shares of Parsley Class A common stock over the 52-week period ended October 19, 2020 (the “52-week low”).

The results of these calculations are as follows:

Parsley Reference Share Price

Implied Premium Represented
by the Implied Merger
Consideration Value

Pre-announcement Closing Price of $10.10

7.9

20-Day VWAP of $9.71

12.2

30-Day VWAP of $9.74

11.8

One-Year VWAP of $11.02

(1.1)% 

52-week high of $20.00

(45.5)% 

52-week low of $4.12

164.5

In addition, Goldman Sachs calculated an implied equity value for Parsley by multiplying the implied merger consideration value by the total number of fully diluted shares of Parsley Class A common stock outstanding as of October 19, 2020, calculated based on equity information provided by Parsley management and approved for Goldman Sachs’ use by Pioneer management. Goldman Sachs then calculated an implied adjusted enterprise value for Parsley by adding to the implied equity value calculated for Parsley, Parsley’s net debt (calculated as debt, including finance leases, less cash and cash equivalents (“net debt”)) as of June 30, 2020, as reflected in Parsley’s consolidated balance sheet as of that date, and the amount estimated to be paid pursuant to the tax receivable agreement in connection with its termination (the “TRA payment”), as provided by Pioneer management.

Using the foregoing, Goldman Sachs calculated the following multiples:

The implied adjusted enterprise value for Parsley as a multiple of the estimated adjusted earnings before interest, taxes, depreciation, amortization and exploration (“Adj. EBITDAX”) of Parsley on a stand-alone basis for calendar years 2021 and 2022, as reflected in (i) the median estimates published by the Institutional Brokers’ Estimate System (“IBES estimates”) for Parsley and (ii) the Pioneer projections.

The results of these calculations are as follows:

Metric

Parsley Adj. Enterprise
Value / EBITDAX

2021E Adj. EBITDAX (IBES estimates)

6.0x

2022E Adj. EBITDAX (IBES estimates)

4.8x

2021E Adj. EBITDAX (Pioneer projections)

6.2x

2022E Adj. EBITDAX (Pioneer projections)

5.9x

Based on the foregoing, Goldman Sachs also calculated the following multiples:

The implied merger consideration value as a multiple of estimated cash flow per share (“CFPS”) of Parsley on a stand-alone basis for calendar years 2021 and 2022, as reflected in (i) the IBES estimates for Parsley and (ii) the Pioneer projections.

The results of these calculations are as follows:

Metric

Implied Merger
Consideration Value /
CFPS

2021E CFPS (IBES estimates)

3.7x

2022E CFPS (IBES estimates)

3.1x

2021E CFPS (Pioneer projections)

4.0x

2022E CFPS (Pioneer projections)

3.8x

Illustrative Discounted Cash Flow Analysis – Parsley

Using the Pioneer projections for Parsley and the Pioneer expected synergies, Goldman Sachs performed an illustrative discounted cash flow analysis of Parsley to derive a range of illustrative present values per share of Parsley Class A common stock and Parsley LLC stapled unit both without taking into account Pioneer expected synergies and taking into account Pioneer expected synergies.

Without Pioneer expected synergies. Using discount rates ranging from 7.5% to 8.5%, reflecting estimates of Parsley’s weighted average cost of capital, Goldman Sachs discounted to present value as of September 30, 2020 (i) estimates of the unlevered free cash flows to be generated by Parsley on a standalone basis, excluding Pioneer expected synergies, for the period from September 30, 2020 to December 31, 2024, as reflected in the Pioneer projections (without synergies) for Parsley, and (ii) a range of illustrative terminal values for Parsley as of December 31, 2024, calculated by applying perpetuity growth rates ranging from (0.5)% to 0.5% to the estimate of the terminal year unlevered free cash flow of Parsley, as reflected in the Pioneer projections for Parsley (which analysis implied multiples of the implied terminal values derived for Parsley to estimated earnings before interest, taxes, depreciation, and amortization (“EBITDA”) for Parsley, as reflected in the Pioneer projections for Parsley, for 2024, ranging from 6.2x to 8.0x). Goldman Sachs derived the discount rates referenced above by application of the capital asset pricing model (“CAPM”), which requires certain company-specific inputs, including the company’s target capital structure weightings, the cost of long-term debt, future applicable marginal cash tax rate and a beta for the company, as well as certain financial metrics for the United States financial markets generally. The range of perpetuity growth rates was estimated by Goldman Sachs utilizing its professional judgment and experience, taking into account the Pioneer projections for Parsley on a standalone basis and market expectations regarding long-term real growth of gross domestic product and inflation. Goldman Sachs derived a range of illustrative enterprise values for Parsley by adding the ranges of present values it derived as described above. Goldman Sachs then subtracted from the range of illustrative enterprise values it derived the net debt of Parsley as of September 30, 2020, as reflected in Parsley’s consolidated balance sheet as of that date, and the TRA payment, to derive a range of illustrative equity values for Parsley. Goldman Sachs then divided the range of illustrative equity values it derived for Parsley on a standalone basis by the fully diluted shares of Parsley Class A common stock (including shares issuable in exchange for outstanding Parsley LLC stapled units) outstanding as of October 19, 2020, calculated based on equity information provided by Parsley management and approved for Goldman Sachs’ use by Pioneer management, to derive a range of illustrative present values per share of Parsley Class A common stock and Parsley LLC stapled unit of $13.88 to $19.29.

With Pioneer expected synergies. Goldman Sachs performed the same discounted cash flow analysis described above for Parsley, taking into account Pioneer expected synergies, using discount rates ranging from 7.5% to 8.5%, reflecting estimates of Parsley’s weighted average cost of capital, Goldman Sachs discounted to present value as of September 30, 2020 (i) estimates of the unlevered free cash flows to be generated by Parsley taking into account Pioneer expected synergies, for the period from September 30, 2020 to December 31, 2024, as reflected in the Pioneer projections for Parsley and the Pioneer expected synergies, and (ii) a range of illustrative terminal values for Parsley as of December 31, 2024, calculated by applying perpetuity growth rates ranging from (0.5)% to 0.5% to the estimate of the terminal year unlevered free cash flow of Parsley, as reflected in the Pioneer projections for Parsley and the Pioneer expected synergies (which analysis implied multiples of the

implied terminal values derived for Parsley to estimated EBITDA for Parsley, as reflected in the Pioneer projections for Parsley and the Pioneer expected synergies for 2024, ranging from 6.4x to 8.4x). Goldman Sachs derived the discount rates referenced above by application of CAPM. The range of perpetuity growth rates was estimated by Goldman Sachs utilizing its professional judgment and experience, taking into account the Pioneer projections for Parsley and the Pioneer expected synergies and market expectations regarding long-term real growth of gross domestic product and inflation. Goldman Sachs derived a range of illustrative enterprise values for Parsley by adding the ranges of present values it derived as described above. Goldman Sachs then subtracted from the range of illustrative adjusted enterprise values it derived the net debt of Parsley as of September 30, 2020, as reflected in Parsley’s consolidated balance sheet as of that date, and the TRA payment, to derive a range of illustrative equity values for Parsley. Goldman Sachs then divided the range of illustrative equity values it derived for Parsley on a standalone basis by the fully diluted shares of Parsley Class A common stock outstanding as of October 19, 2020, calculated based on equity information provided by Parsley management and approved for Goldman Sachs’ use by Pioneer management, to derive a range of illustrative present values per share of Parsley Class A common stock and Parsley LLC stapled unit of $16.08 to $22.01.

Premia Paid Analysis

Goldman Sachs analyzed the premia paid in certain acquisition transactions listed below announced since January 2005 with a transaction value of greater than $1 billion involving U.S. publicly traded target companies in the oil and gas exploration and production industry. With respect to each of these transactions, Goldman Sachs calculated the implied premium of the price paid in the transactions relative to the last undisturbed closing share price of the target company. The following table presents the results of this analysis:

Announcement Date

Target

Acquirer

Premium to Last
Undisturbed Closing
Share Price

All-Stock
Consideration
Transactions:

5/11/15

Rosetta Resources Inc.Noble Energy, Inc.37.7

11/1/18

Newfield Exploration CompanyEncana Corporation35.4

3/28/18

RSP Permian, Inc.Concho Resources Inc.29.1

1/26/05

Magnum Hunter Resources Inc.Cimarex Energy Co.27.2

12/14/09

XTO Energy Inc.ExxonMobil Corporation24.6

2/21/13

Berry Petroleum CompanyLinn Energy, LLC19.8

8/14/18

Energen CorporationDiamondback Energy, Inc.19.0

5/16/16

Memorial Resource Development Corp.Range Resources Corporation17.1

10/19/20

Concho Resources Inc.ConocoPhillips11.7

10/14/19

Jagged Peak Energy Inc.Parsley Energy, Inc.11.2

7/20/20

Noble Energy, Inc.Chevron Corporation7.6

7/15/19

Carrizo Oil & Gas, Inc.Callon Petroleum Company6.7

9/28/20

WPX EnergyDevon Energy2.6

8/26/19

SRC Energy Inc.PDC Energy, Inc.0.5

Although none of the selected transactions is directly comparable to the transaction contemplated by the merger agreement, the target companies in the selected transactions were companies with operations that, for the purposes of analysis, may be considered similar to certain of Parsley’s results and product candidate profile, and as such, for purposes of analysis, the selected transactions may be considered similar to the transaction contemplated by the merger agreement.

Based on its review of the foregoing data and its professional judgment and experience, Goldman Sachs applied a range of illustrative premia of 0.5%—37.7% to the Parsley pre-announcement closing price of $10.10. This analysis resulted in a range of implied values per share of Parsley Class A common stock and Parsley LLC stapled unit of $10.15 to $13.91.

Discounted Cash Flow Analysis—Pioneer Standalone

Goldman Sachs performed an illustrative discounted cash flow analysis of Pioneer, on a standalone basis, to derive a range of illustrative present values per share of Pioneer common stock on a standalone basis.

Using discount rates ranging from 6.5% to 7.5%, reflecting estimates of Pioneer’s weighted average cost of capital, Goldman Sachs discounted to present value as of September 30, 2020 (i) estimates of the unlevered free cash flows to be generated by Pioneer on a standalone basis for the period from September 30, 2020 to December 31, 2024, as reflected in the Pioneer projections for Pioneer, and (ii) a range of illustrative terminal values for Pioneer on a standalone basis as of December 31, 2024, calculated by applying perpetuity growth rates ranging from 1.25% to 2.25% to the estimate of the terminal year unlevered free cash flow of Pioneer, as reflected in the Pioneer projections for Pioneer (which analysis implied multiples of the implied terminal values derived for Pioneer to EBITDA for Pioneer, as reflected in the Pioneer projections for Pioneer on a standalone basis, for 2024, ranging from 5.8x to 8.7x). Goldman Sachs derived the discount rates referenced above by application of CAPM. The range of perpetuity growth rates was estimated by Goldman Sachs utilizing its professional judgment and experience, taking into account the Pioneer projections for Pioneer on a standalone basis and market expectations regarding long-term real growth of gross domestic product and inflation.

Goldman Sachs derived a range of illustrative enterprise values for Pioneer on a standalone basis by adding the ranges of present values it derived as described above. Goldman Sachs then subtracted from the range of illustrative enterprise values it derived the net debt (including finance leases and net contingent fee obligations) of Pioneer on a standalone basis as of September 30, 2020, as provided by Pioneer management, to derive a range of illustrative equity values for Pioneer on a standalone basis. Goldman Sachs then divided the range of illustrative equity values it derived for Pioneer on a standalone basis by the fully diluted shares of Pioneer common stock outstanding as of October 19, 2020, calculated based on equity information provided by Pioneer management, to derive a range of illustrative present values per share of Pioneer common stock on a standalone basis of $98.80 to $150.22.

Discounted Cash Flow Analysis—Pioneer Pro Forma

Goldman Sachs performed an illustrative discounted cash flow analysis of Pioneer, on a pro forma basis, giving effect to the mergers to derive a range of illustrative present values per share of Pioneer common stock on a pro forma basis, as of October 19, 2020.

Using discount rates ranging from 6.5% to 7.5%, reflecting estimates of Pioneer’s weighted average cost of capital on a pro forma basis, Goldman Sachs discounted to present value as of September 30, 2020 (i) estimates of the unlevered free cash flows to be generated by Pioneer on a pro forma basis for the period from September 30, 2020 to December 31, 2024, as reflected in the Pioneer projections for Pioneer on a pro forma basis, and (ii) a range of illustrative terminal values for Pioneer on a pro forma basis as of December 31, 2024, calculated by applying perpetuity growth rates ranging from 0.5% to 1.5% to the estimate of the terminal year unlevered free cash flow of Pioneer, as reflected in the Pioneer projections for Pioneer (which analysis implied multiples of the implied terminal values derived for Pioneer to estimated EBITDA for Pioneer, as reflected in the Pioneer projections on a pro forma basis for Pioneer, for 2024, ranging from 6.1x to 8.6x). Goldman Sachs derived the discount rates referenced above by application of CAPM. The range of perpetuity growth rates was estimated by Goldman Sachs utilizing its professional judgment and experience, taking into account the Pioneer projections on a pro forma basis and market expectations regarding long-term real growth of gross domestic product and inflation.

Goldman Sachs derived a range of illustrative enterprise values for Pioneer on a pro forma basis by adding the ranges of present values it derived as described above. Goldman Sachs then subtracted from the range of illustrative enterprise values it derived the net debt (including finance leases and net contingent fee obligations) of Pioneer on a pro forma basis as of September 30, 2020, as provided by Pioneer management and the TRA

payment, to derive a range of illustrative equity values for Pioneer on a pro forma basis. Goldman Sachs then divided the range of illustrative equity values it derived for Pioneer on a pro forma basis by the fully diluted shares of Pioneer common stock outstanding as of October 19, 2020, calculated based on equity information provided by Pioneer management, to derive a range of illustrative present values per share of Parsley Class A common stock and Parsley LLC stapled unit on a pro forma basis of $109.00 to $159.18.

General

The preparation of a fairness opinion is a complex process and is not necessarily susceptible to partial analysis or summary description. Selecting portions of the analyses or of the summary set forth above, without considering the analyses as a whole, could create an incomplete view of the processes underlying Goldman Sachs’ opinion. In arriving at its fairness determination, Goldman Sachs considered the results of all of its analyses and did not attribute any particular weight to any factor or analysis considered by it. Rather, Goldman Sachs made its determination as to fairness on the basis of its experience and professional judgment after considering the results of all of its analyses. No company or transaction used in the above analyses as a comparison is directly comparable to Pioneer, Parsley or the mergers.

Goldman Sachs prepared these analyses for purposes of providing its opinion to the Pioneer board as to the fairness from a financial point of view to Pioneer, as of the date of its written opinion, of the exchange ratio pursuant to the merger agreement. These analyses do not purport to be appraisals nor do they necessarily reflect the prices at which businesses or securities actually may be sold. Analyses based upon projections of future results are not necessarily indicative of actual future results, which may be significantly more or less favorable than suggested by these analyses. Because these analyses are inherently subject to uncertainty, being based upon numerous factors or events beyond the control of the parties or their respective advisors, none of Pioneer, Goldman Sachs or any other person assumes responsibility if future results are materially different from those projections.

The exchange ratio was determined through arm’s-length negotiations between Pioneer and Parsley and was approved by the Pioneer board. Goldman Sachs provided advice to Pioneer during these negotiations. Goldman Sachs did not, however, recommend any specific consideration to Pioneer or the Pioneer board or that any specific consideration constituted the only appropriate consideration for the mergers.

As described above, Goldman Sachs’ opinion was one of many factors taken into consideration by the Pioneer board in making its determination to approve the mergers. The foregoing summary does not purport to be a complete description of the analyses performed by Goldman Sachs in connection with the delivery of its fairness opinion to the Pioneer board and is qualified in its entirety by reference to the written opinion of Goldman Sachs attached as Annex B to this joint proxy statement/prospectus.

Goldman Sachs and its affiliates are engaged in advisory, underwriting and financing, principal investing, sales and trading, research, investment management and other financial and non-financial activities and services for various persons and entities. Goldman Sachs and its affiliates and employees, and funds or other entities they manage or in which they invest or have other economic interests or with which they co-invest, may at any time purchase, sell, hold or vote long or short positions and investments in securities, derivatives, loans, commodities, currencies, credit default swaps and other financial instruments of Pioneer, Parsley, Parsley LLC and any of their respective affiliates and third parties, including Quantum Energy Partners, LLC (“QEP”), an affiliate of Quantum, a significant stockholder of Parsley, and its affiliates and portfolio companies, or any currency or commodity that may be involved in the mergers. Goldman Sachs acted as financial advisor to Pioneer in connection with, and has participated in certain of the negotiations leading to, the mergers. Goldman Sachs expects to receive fees for its services in connection with the mergers, all of which are contingent upon consummation of the mergers, and Pioneer has agreed to reimburse certain of its expenses arising, and indemnify Goldman Sachs against certain liabilities that may arise, out of its engagement. Goldman Sachs has provided certain financial advisory and/or underwriting services to Pioneer and/or its affiliates from time to time for which

its Investment Banking Division has received, and may receive, compensation, including having acted as bookrunner with respect to Pioneer’s private placement of its 0.250% convertible senior notes due 2025 (aggregate principal amount $1,322,500,000) in May 2020 (the “Pioneer convertible notes”); as a dealer manager in connection with Pioneer’s cash tender offers for its outstanding 3.45% senior notes due 2021, 3.95% senior notes due 2022, and 7.20% senior notes due 2028 (aggregate principal amount of up to $500,000,000) in May 2020; and as co-manager in connection with Pioneer’s public offering of its 1.90% Senior Notes due 2030 (aggregate principal amount $1,100,000,000) in August 2020. During the two-year period ended October 20, 2020, Goldman Sachs has recognized compensation for financial advisory and/or underwriting services provided by its Investment Banking Division to Pioneer and/or its affiliates of approximately $6.1 million. During the two-year period ended October 20, 2020, the Investment Banking Division of Goldman Sachs has not been engaged by Parsley or its affiliates to provide financial advisory or underwriting services for which Goldman Sachs has recognized compensation. Goldman Sachs may also in the future provide financial advisory and/or underwriting services to Pioneer, Parsley, QEP and their respective affiliates and, as applicable, portfolio companies for which its Investment Banking Division may receive compensation. Affiliates of Goldman Sachs also may have co-invested with QEP and its affiliates from time to time and may have invested in limited partnership units of affiliates of QEP from time to time and may do so in the future.

Concurrent with the issuance of the Pioneer convertible notes, Pioneer entered into capped call transactions with respect to the Pioneer convertible notes (collectively, the “capped call transactions”) with Goldman Sachs (with respect to 25% of such convertible notes) and other counterparties (collectively, the “capped call counterparties”), each acting as principal for its own account. The capped call transactions consisted of the purchase by Pioneer of capped call options with respect to collectively approximately 12,047,710 shares of Pioneer common stock, the aggregate number of shares of Pioneer common stock into which the $1,322,500,000 aggregate principal amount of the Pioneer convertible notes are convertible (at the conversion rate of 9.1098 shares of Pioneer common stock per $1,000 in principal amount of Pioneer convertible notes) and with an initial strike price equal to the conversion price of the Pioneer convertible notes of $109.7719 per share of Pioneer common stock, subject to an initial cap price of $156.2140 per share of Pioneer common stock. As of November 13, 2020, all of the capped call transactions remain outstanding, with a strike price of $109.7719 and a cap price of $156.2140.

The capped call transactions were intended to offset a portion of the potential dilutive effect on Pioneer stockholders of the conversion of the Pioneer convertible notes and/or any potential cash payment in excess of the principal amount of the Pioneer convertible notes that Pioneer may make in connection with a cash settlement of the Pioneer convertible notes, up to the cap price. The capped call transactions generally require the capped call counterparties to deliver to Pioneer in respect of each Pioneer convertible note that is surrendered for conversion, a number of shares of Pioneer common stock (and/or in certain circumstances, at Pioneer’s election, cash) determined based on the excess, if any, of the lower of the cap price and the price of the shares of Pioneer common stock at that time (determined over a period specified in the capped call transactions) over the strike price per share of Pioneer common stock.

The capped call transactions may be adjusted, exercised, cancelled and/or terminated in accordance with their terms in connection with certain events. In particular, under the terms of the capped call transactions, Goldman Sachs and the other counterparties, each acting separately as calculation agent under the capped call transactions to which it is a party, are entitled in certain circumstances to make adjustments on more than one occasion to the terms of such capped call transactions to reflect the economic effect of the announcement of such events (including the mergers) on the embedded call options, including if such economic effect is material. In addition, each of Goldman Sachs and the other counterparties may, acting separately as the calculation agent, determining party or otherwise as principal under the capped call transactions to which it is a party, determine such adjustments in respect of such capped call transactions in accordance with their terms, including on or following consummation or abandonment of such events. All actions or exercises of judgment by Goldman Sachs, in its capacity as calculation agent, pursuant to the terms of the capped call transactions to which it is a party must be performed in good faith and a commercially reasonable manner.

As a result of the capped call transactions, the capped call counterparties are expected to have market exposure to the price of the shares of Pioneer common stock. It is the ordinary practice of the capped call counterparties to engage in hedging activities to limit their respective market exposure to the price of the stock underlying privately negotiated equity derivative transactions with issuers of such stock, such as the capped call transactions. In connection with the capped call transactions to which it is a party, Goldman Sachs (and its respective affiliates) have engaged, and will continue to engage, in accordance with applicable law in hedging and other market transactions (which may include the entering into or unwinding of various derivative transactions with respect to Pioneer common stock) that are generally intended to substantially neutralize Goldman Sachs’ exposure as a result of the capped call transactions to which it is a party to changes in the price of Pioneer common stock. Such hedging activity is at Goldman Sachs’ own risk and may result in a gain or loss to Goldman Sachs that may be greater than or less than the initial expected contractual benefit to Goldman Sachs under the capped call transactions to which it is a party. The amount of any such gain or loss will not be known until the applicable capped call transactions have been exercised, expired or terminated in accordance with their terms and Goldman Sachs shall have completed all of its hedge unwind activities. In accordance with industry practice, Goldman Sachs maintains customary institutional information barriers reasonably designed to prevent the unauthorized disclosure of confidential information by personnel in its Investment Banking Division to the personnel in its Securities Division who are undertaking hedging and other market transactions with respect to Goldman Sachs’ capped call transactions.

To mitigate the exposure from the capped call transactions, Goldman Sachs held, as of the close of business on November 17, 2020, directly or indirectly, a net long position of less than 500,000 of the outstanding shares of Pioneer common stock in connection with the capped call transactions in respect of which it is a counterparty.

The indenture governing the Pioneer convertible notes and the confirmations containing the terms of the Pioneer capped call transactions were included as exhibits to Pioneer’s Current Report on Form 8-K filed with the SEC on May 15, 2020, which contains additional disclosure regarding the Pioneer convertible notes and a description of the capped call transactions. All references in this section titled “—Opinion of Goldman Sachs & Co. LLC—General” to share counts, conversion prices, cap prices and strike prices are subject to adjustment from time to time in accordance with the terms of the confirmations.

The Pioneer board selected Goldman Sachs as its financial advisor because it is an internationally recognized investment banking firm that has substantial experience in transactions similar to the mergers. Pursuant to an engagement letter dated October 18, 2020, Pioneer engaged Goldman Sachs to act as its financial advisor in connection with the mergers. The engagement letter between Pioneer and Goldman Sachs provides for a transaction fee of $17 million plus an additional fee of $1 million, which may be payable at the sole discretion of Pioneer, all of which is contingent upon consummation of the mergers. In addition, Pioneer agreed to reimburse Goldman Sachs for certain of its expenses, including reasonable attorneys’ fees and disbursements, and to indemnify Goldman Sachs and related persons against various liabilities, including certain liabilities under the federal securities laws.

Opinion of Morgan Stanley & Co. LLC

Pioneer retained Morgan Stanley to provide it with financial advisory services in connection with the mergers and to provide a financial opinion to the Pioneer board. Pioneer selected Morgan Stanley to act as its financial advisor based on Morgan Stanley’s qualifications, expertise and reputation and its knowledge of the business and affairs of Pioneer. On October 20, 2020 at a meeting of the Pioneer board, Morgan Stanley rendered its oral opinion, subsequently confirmed by delivery of a written opinion, dated October 20, 2020, that, as of such date and based upon and subject to the various assumptions made, procedures followed, matters considered and qualifications and limitations on the scope of review undertaken by Morgan Stanley as set forth in the written opinion, the exchange ratio pursuant to the merger agreement was fair from a financial point of view to Pioneer.

The full text of the written opinion of Morgan Stanley delivered to the Pioneer board, dated as of October 20, 2020, is attached as Annex C to this joint proxy statement/prospectus and is incorporated herein by

reference in its entirety. Pioneer stockholders should read Morgan Stanley’s opinion carefully and in its entirety for a discussion of the assumptions made, procedures followed, matters considered and qualifications and limitations on the scope of the review undertaken by Morgan Stanley in rendering its opinion. This summary is qualified in its entirety by reference to the full text of such opinion. Morgan Stanley’s opinion was directed to the Pioneer board, in its capacity as such, and addressed only the fairness from a financial point of view to Pioneer of the exchange ratio pursuant to the merger agreement as of the date of such opinion. Morgan Stanley’s opinion did not address any other aspects or implications of the mergers. Morgan Stanley’s opinion did not in any manner address the price at which the Pioneer common stock would trade following the consummation of the mergers or at any time, and Morgan Stanley expressed no opinion or recommendation to any holder of shares of Pioneer common stock or Parsley common stock as to how such holder should vote at the Pioneer special meeting or the Parsley special meeting, respectively, or whether to take any other action with respect to the mergers.

For purposes of rendering its opinion, Morgan Stanley, among other things:

reviewed certain publicly available financial statements and other business and financial information of Parsley and Pioneer, respectively;

reviewed certain internal financial statements and other financial and operating data concerning Parsley and Pioneer, respectively;

reviewed certain financial projections prepared by the managements of Parsley and Pioneer, respectively;

reviewed information relating to certain strategic, financial and operational benefits anticipated from the mergers, prepared by the management of Pioneer;

discussed the past and current operations and financial condition and the prospects of Parsley, including information relating to certain strategic, financial and operational benefits anticipated from the mergers, with senior executives of Parsley;

discussed the past and current operations and financial condition and the prospects of Pioneer, including information relating to certain strategic, financial and operational benefits anticipated from the mergers, with senior executives of Pioneer;

reviewed the pro forma impact of the mergers on Pioneer’s cash flow per share, consolidated capitalization and certain financial ratios;

reviewed the reported prices and trading activity for the Parsley Class A common stock and Pioneer common stock;

compared the financial performance of Parsley and Pioneer and the prices and trading activity of the Parsley Class A common stock and Pioneer common stock with that of certain other publicly traded companies comparable with Parsley and Pioneer, respectively, and their securities;

reviewed the financial terms, to the extent publicly available, of certain comparable acquisition transactions;

reviewed the merger agreement and certain related documents; and

performed such other analyses and considered such other factors as Morgan Stanley deemed appropriate.

Morgan Stanley assumed and relied upon, without independent verification, the accuracy and completeness of the information that was publicly available or supplied or otherwise made available to Morgan Stanley by Parsley and Pioneer, and formed a substantial basis for its opinion. With respect to the financial projections, including information relating to certain strategic, financial and operational benefits anticipated from the mergers, Morgan Stanley assumed that they had been reasonably prepared on bases reflecting the best currently available estimates and judgments of the respective managements of Parsley and Pioneer of the future financial

performance of Parsley and Pioneer. In addition, Morgan Stanley assumed that the mergers will be consummated in accordance with the terms set forth in the merger agreement without any waiver, amendment or delay of any terms or conditions, including, among other things, that the integrated mergers will be treated as a tax-free reorganization pursuant to the Code and that the definitive merger agreement would not differ in any material respect from the draft thereof furnished to Morgan Stanley. Morgan Stanley assumed that in connection with the receipt of all necessary governmental, regulatory or other approvals, and consents required for the mergers, no delays, limitations, conditions or restrictions would be imposed that would have a material adverse effect the contemplated benefits expected to be derived in the mergers. Morgan Stanley noted that it was not a legal, tax or regulatory advisor. Morgan Stanley noted that it is a financial advisor only and relied upon, without independent verification, the assessment of Pioneer and Parsley and their legal, tax and regulatory advisors with respect to legal, tax and regulatory matters. Morgan Stanley expressed no opinion with respect to the fairness of the amount or nature of the compensation to any of Parsley’s officers, directors or employees, or any class of such persons, relative to the consideration to be paid to the holders of shares of Parsley Class A common stock or Parsley LLC stapled units in the mergers. Morgan Stanley’s opinion did not address the relative merits of the transactions contemplated by the merger agreement as compared to other business or financial strategies that might be available to Pioneer, nor did it address the underlying business decision of Pioneer to enter into the merger agreement or proceed with any other transaction contemplated by the merger agreement. Morgan Stanley did not make any independent valuation or appraisal of the assets or liabilities of Parsley or Pioneer, nor was Morgan Stanley furnished with any such valuations or appraisals. Morgan Stanley’s opinion was necessarily based on financial, economic, market and other conditions as in effect on, and the information made available to Morgan Stanley as of, the date of its opinion. Events occurring after the date of Morgan Stanley’s opinion may affect Morgan Stanley’s opinion and the assumptions used in preparing it, and Morgan Stanley did not assume any obligation to update, revise or reaffirm its opinion.

Summary of Financial Analyses of Morgan Stanley

The following is a summary of the material financial analyses performed by Morgan Stanley in connection with its oral opinion and the preparation of its written opinion to the Pioneer board, both provided as of October 20, 2020. The following summary is not a complete description of the financial analyses performed and factors considered by Morgan Stanley in connection with its opinion, nor does the order of analyses described represent the relative importance or weight given to those analyses. Except as otherwise noted, the following quantitative information, to the extent that it is based on market data, is based on market data as it existed on or before October 19, 2020. Some of these summaries of financial analyses includesinclude information presented in tabular format. TheseIn order to fully understand the financial analyses used by Morgan Stanley, the tables must be read together with the text of each summary in order to fully understand the financial analyses performed by Evercore.summary. The tables alone do not constitute a complete description of the financial analyses. The analyses performed by Evercore. Consideringlisted in the tables and described below must be considered as a whole. Assessing any portion of such analyses and of the factors reviewed, without considering the full narrative description of the financialall analyses including the methodologies and assumptions underlying the analyses,factors, could create a misleading or incomplete view of Evercore’sthe process underlying Morgan Stanley’s opinion. Furthermore, mathematical analysis is not in itself a meaningful method of using the data referred to below.

In performing the financial analyses.

Valuationanalyses summarized below and in arriving at its opinion, at the direction of Pioneer, Southwest

Net Asset Value Analyses

Evercore calculated the net present value of estimates of future before-tax cash flows based on the reserve reportMorgan Stanley utilized and relied upon certain financial projections relating to Parsley and Pioneer, provided by the management of Pioneer (the “Pioneer Reserves Case”), as well as(which included certain forecast data prepared by Parsley) and which are described below. In addition, Morgan Stanley utilized and relied upon the reserve reportnumber of issued and outstanding shares of Parsley and Pioneer provided by Russell K. Hall (the “Russell Hall Reserves Case”)management of Pioneer. For further information regarding the financial and operating projections, see the section titled “—Certain Pioneer Unaudited Prospective Financial and Operating Information. Evercore evaluated four pricing scenarios for each reportOther than the Accretion / Dilution Analysis, none of the financial analyses performed by Morgan Stanley considered, relied upon or reflected the pre-tax operational and other synergies identified by Pioneer management, as described in which the principal variables were oilsection titled “—Recommendation of the Pioneer Board and gas prices. The four pricing scenarios were based on benchmarks for spot sales of West Texas Intermediate oil and for spot sales of Henry Hub gas. One scenario was based on the annual average of oil and gas futures contract prices quoted on the New York Mercantile Exchange for five years and held flat thereafter. Benchmark pricesReasons for the other three scenarios were projected to be flat at $85.00, $100.00, and $105.00 per barrel of oil and $4.25, $4.25, and $5.00 per million British thermal units for gas. Applying various discount rates ranging from 7.0% to 20.0%, depending on reserve category, to the before-tax cash flows of the proved and non-proved reserve estimates, and adjusting for the present value of the future estimated effects of hedging at discount rates ranging from 7.0% to 9.0% and general and administrative expenses at discount rates ranging from 12.0% to 15.0%, Evercore calculated the following implied net asset value for Pioneer Southwest based on the two reserve reports:Mergers.

   Five Year Strip   $85 Oil & $4.25
Gas
   $100 Oil & $4.25
Gas
   $105 Oil & $5.00
Gas
 
   Min   Max   Min   Max   Min   Max   Min   Max 

Implied Net Asset Value of Pioneer Reserves Case
($ millions)

  $787    $1,061    $766    $1,046    $1,102    $1,486    $1,237    $1,660  

Implied Net Asset Value of Russell Hall Reserves Case
($ millions)

  $949    $1,180    $924    $1,158    $1,281    $1,590    $1,426    $1,763  

Evercore then adjusted for net debt and common units outstanding at June 30, 2013, to determine the following implied adjusted equity value per common unit for Pioneer Southwest:

   Five Year Strip   $85 Oil & $4.25
Gas
   $100 Oil & $4.25
Gas
   $105 Oil & $5.00
Gas
 
   Min   Max   Min   Max   Min   Max   Min   Max 

Implied Equity Value of Pioneer Reserves Case
($ per unit)

  $17.16    $24.81    $16.56    $24.40    $25.95    $36.70    $29.73    $41.56  

Implied Equity Value of Russell Hall Reserves Case
($ per unit)

  $21.68    $28.14    $20.97    $27.54    $30.97    $39.60    $35.02    $44.45  

Peer Group TradingComparable Company Analysis

Evercore performed a peer group trading analysis of Pioneer Southwest by reviewing and comparingIn order to assess how the public market values and trading multiplesshares of the following ninesimilar publicly traded partnershipscompanies, Morgan Stanley reviewed and compared specific financial and operating data relating to each of Parsley and Pioneer with selected companies that EvercoreMorgan Stanley deemed comparable to have certain characteristics that are similar toeach of Parsley and Pioneer, Southwest, based on size, asset baselocation of assets, expected growth and production characteristics:leverage profile.

Atlas Resource Partners, L.P.

BreitBurn Energy Partners L.P.

EV Energy Partners, L.P.

Legacy Reserves LP

LRR Energy, L.P.

Memorial Production Partners LP

Mid-Con Energy Partners, LP

QR Energy, LP

Vanguard Natural Resources, LLC

AlthoughMorgan Stanley analyzed, among other things, the peer group was compared to Pioneer Southwest for purposesfollowing financial metrics of this analysis, no company or partnership used in the peer group analysis is identical or directly comparable to Pioneer Southwest. In order to calculate peer group trading multiples, Evercore relied on publicly available filings with the SEC and equity research analyst estimates.

For each of the peer groupcomparable companies Evercore calculated the following trading multiples:as of October 19, 2020:

 

Enterprise Value/2013E EBITDAX, which is defined

the ratio of aggregate value (defined as market value ofcapitalization plus net debt, preferred equity plus debt and preferred stock, less cash (“Enterprise Value”), divided byminority interests) to 2021 and 2022 estimated EBITDAX (calculated as earnings before interest, taxes, depreciation, and amortization and exploration expense (“EBITDAX”)expenses) (based on median research consensus per S&P Capital IQ (such median research consensus we refer to, for the calendar year 2013;purposes of this section titled “The Mergers—Opinions of Pioneer’s Financial Advisors – Opinion of Morgan Stanley & Co. LLC,” as “Wall Street consensus estimates”));

 

Enterprise Value/2014E EBITDAX, which is defined as Enterprise Value divided by

the ratio of share price to estimated EBITDAX for the calendar year 2014;2021 and 2022 operating cash flow per share (based on Wall Street consensus estimates);

 

Enterprise Value/Proved Reserves, which is defined as Enterprise Value divided by

the ratio of aggregate value to 2019 year end proved reserves as(measured in barrels of December 31, 2012;oil equivalent); and

 

Enterprise Value/Current Production, which is defined

the ratio of aggregate value to Q2 2020 annualized production (measured in barrels of oil equivalent per day).

The metrics for each of the comparable companies are summarized as Enterprise Value divided by current average daily production;

follows:

 

Enterprise Value/2013E Production, which is defined as Enterprise Value divided by projected 2013E average daily production; and

Comparable Companies

  AV/
2021E
EBITDAX

(x)
   AV /
2022E
EBITDAX
(x)
   P /
2021E
Cash
Flow
Per
Share
(x)
   P /
2022E
Cash
Flow
Per
Share
(x)
   AV /
Proved
Reserves
($ / Boe)
   AV /
Current
Production
($ / Boepd)
 

EOG Resources, Inc.

   4.5x    3.8x    4.2x    3.4x   $7.32   $38,996 

Concho Resources Inc.

   5.5x    4.8x    4.2x    3.6x   $12.95   $40,475 

Devon Energy Corporation

   4.0x    3.3x    2.5x    2.0x   $8.39   $21,904 

Diamondback Energy Inc.

   5.1x    4.4x    2.2x    1.9x   $8.92   $34,113 

Cimarex Energy Co.

   4.2x    3.4x    2.4x    2.1x   $7.39   $17,929 

Enterprise Value/2014E Production, which is defined as Enterprise Value divided by projected 2014E average daily production.

The mean and median trading multiples are set forth below. The table also includes relevant multiple ranges selected by Evercore basedBased on the resultinganalysis of the relevant metrics for each of the comparable companies, and upon the application of its professional judgment and experience (which included the exclusion of outliers and weighting more heavily the comparable companies which Morgan Stanley deemed most comparable to Pioneer and Parsley in the relevant metrics), Morgan Stanley selected a reference range of financial multiples of the comparable companies and applied this range of multiples and certain other considerations related to the specific characteristicsrelevant Parsley and Pioneer financial statistics (based on Wall Street consensus estimates for Parsley and Pioneer EBITDAX and cash flow per share).

Morgan Stanley calculated the following ranges of Pioneer Southwest noted by Evercore.the implied per share values of Parsley Class A common stock:

Benchmark

  Mean  Median

EV/2013E EBITDAX

  8.3x  8.2x

EV/2014E EBITDAX

  6.7x  6.9x

EV/Proved Reserves ($/BOE)

  $20.76  $18.58

EV/Current Production ($/BOEPD)

  $110,191  $999,879

EV/2013E Production ($/BOEPD)

  $100,148  $91,771

EV/2014E Production ($/BOEPD)

  $85,556  $80,663

 

BenchmarkPublic Trading Comparables

Parsley
Statistic
  Reference Range Implied Enterprise Value
Per Share Range ($ millions)
for Parsley

EV/2013EAggregate Value to Estimated 2021 EBITDAX

  8.0x$1,314MM4.5x – 9.0x5.5x  $9726.71 – $1,094$9.95

EV/2014EAggregate Value to Estimated 2022 EBITDAX

  7.0x$1,615MM3.5x – 8.0x4.8x  $1,1166.08 – $1,275$11.28

EV/Proved Reserves ($/BOE)Price to Estimated 2021 Cash Flow per Share

  $20.002.81/sh3.0x – $28.004.2x  $9808.44 – $1,372$11.91

EV/Current Production ($/BOEPD)Price to Estimated 2022 Cash Flow per Share

  $100,0003.53/sh2.5x – $125,0003.6x  $8418.84 – $1,052$12.89

EV/2013E Production ($/BOEPD)Aggregate Value to Proved Reserves (Boe)

  $90,000 – $120,000730 MMBoe  $7529.00 – $1,003$13.00$8.28 – 15.29

EV/2014EAggregate Value to Current Production ($/BOEPD)(Boepd)

  $85,000 – $110,000183 Mboepd  $78530,000 – $1,016$40,000$5.70 – 10.09

Evercore applied the relevant multiples to Pioneer Southwest’s projected 2013E and 2014E EBITDAX (please read “The Merger — Unaudited Financial Projections of Pioneer and Pioneer Southwest”), proved reserves, and current, 2013E and 2014E average daily production to determine a selected Enterprise Value range of $1,050 million to $1,300 million. After adjusting for net debt and units outstanding at June 30, 2013, Evercore determined an implied equity value per unit range of $24.50 per unit to $31.50 per unit.

Precedent M&A Transaction Analysis

Evercore reviewed selected publicly available information for oil and gas property transactions announced between April 2012 and May 2013 and selected 16 transactions involving assets that Evercore deemed to have certain characteristics that are similar to those of Pioneer Southwest, with assets similar to the assets of Pioneer Southwest and certain transactions within Pioneer Southwest’s primary operating area in the Permian Basin, although Evercore noted that none of the selected transactions or the selected companies that participated in the selected transactions were directly comparable to Pioneer Southwest. Evercore applied relevant transaction multiples ranging from $20.00 to $28.00 per BOE of proved reserves and $120,000 to $145,000 per average daily produced BOE to determine a selected Enterprise Value range of $1,000 million to $1,225 million. After adjusting for net debt and units outstanding at June 30, 2013, Evercore determined an implied equity value per unit range of $23.11 per unit to $29.40 per unit.

Evercore also reviewed selected publicly available information for oil and gas corporate transactions announced between March 2010 and April 2013 and selected 12 transactions involving companies that Evercore deemed to have certain characteristics that are similar to those of Pioneer Southwest, including transactions involving targets which were domestic exploration and production companies, although Evercore noted that none of the selected transactions or the selected companies that participated in the selected transactions were directly comparable to Pioneer Southwest. Evercore applied relevant transaction multiples ranging from 8.0x to 10.5x 2013E EBITDAX, 7.0x to 9.0x 2014E EBITDAX, $20.00 to $30.00 per BOE of proved reserves, and $110,000 to $150,000 per average daily produced BOE to determine a selected Enterprise Value range of $1,000 million to $1,350 million. After adjusting for net debt and units outstanding at June 30, 2013, Evercore determined an implied equity value per unit range of $23.11 per unit to $32.90 per unit.

Evercore also reviewed selected publicly available information for corporate minority squeeze out transactions announced or closed between April 2007 and December 2012 to evaluate the premium paid in

connection with a corporate minority squeeze out transaction based on the value of the per share consideration received in the relevant transaction relative to the closing stock price of the target company one-day, one-week and four-weeks prior to the announcement date of the transaction. Each of the 15 transactions selected by Evercore had a minimum transaction value of $500 million, although Evercore noted that none of the selected transactions or the selected companies that participated in the selected transactions were directly comparable to the merger or Pioneer Southwest. Evercore applied relevant premiums ranging from 20% to 30% for a one-day premium, 25% to 35% for a one-week premium and 20% to 30% for a one-month premium. Evercore applied the relevant premiums to Pioneer Southwest’s closing unit price one-day prior, one-week prior and four-weeks prior to the May 7, 2013, announcement of the proposed merger to determine a selected equity value range of $30.00 per unit to $34.00 per unit.

Discounted Cash Flow Analysis

Evercore performed a discounted cash flow analysis of Pioneer Southwest by valuing the cash flows to be received by Pioneer Southwest under two different commodity price scenarios for the four-year period ending December 31, 2016, based on the projections received from Pioneer and Pioneer Southwest GP management (please read “The Merger — Unaudited Financial Projections of Pioneer and Pioneer Southwest”). Assuming a terminal exit EBITDAX multiple at December 31, 2016, of 7.5x to 9.5x based on Pioneer Southwest’s current and recent historical multiple and an assumed discount rate of 7.5% to 9.5% derived by taking into consideration a weighted average cost of capital calculation, Evercore determined an implied equity value per unit range of $22.39 per unit to $30.07 per unit under the $85.00 oil and $4.25 gas pricing case and an implied equity value per unit range of $29.94 per unit to $39.75 per unit under the $100.00 oil and $4.25 gas pricing case.

Research Analyst Price Targets

Evercore analyzed equity research analyst estimates of potential future value for Pioneer Southwest common units, commonly referred to as price targets, based on publicly available equity research published with respect to Pioneer Southwest. Evercore observed that, as of August 7, 2013, research analyst one-year forward price targets for Pioneer Southwest common units ranged from $30.78 to $46.00 per unit. Evercore then discounted the price targets 12 months at an assumed discount rate of 8.0% to 10.0%, derived by taking into consideration a cost of equity calculation, resulting in a present value range from $27.98 to $42.59 per unit of Pioneer Southwest’s common units.

Valuation of Pioneer

Peer Group Trading Analysis

Evercore performed a peer group trading analysis of Pioneer by reviewing and comparing the market values and trading multiples of the following six publicly traded companies that Evercore deemed to have certain characteristics that are similar to Pioneer’s based on size, asset base and production characteristics:

Continental Resources, Inc.

Range Resources Corporation

Cabot Oil & Gas Corporation

Concho Resources Inc.

Whiting Petroleum Corporation

Cimarex Energy Co.

Although the peer group was compared to Pioneer for purposes of this analysis, no company used in the peer group analysis is identical or directly comparable to Pioneer. In order to calculate peer group trading multiples, Evercore relied on publicly available filings with the SEC and equity research analyst estimates.

For each of the peer group companies, EvercoreMorgan Stanley calculated the following trading multiples:

Enterprise Value/2013E EBITDAX, which is defined as Enterprise Value divided by estimated EBITDAX for the calendar year 2013;

Enterprise Value/2014E EBITDAX, which is defined as Enterprise Value divided by estimated EBITDAX for the calendar year 2014;

Enterprise Value/Proved Reserves, which is defined as Enterprise Value divided by proved reserves asranges of December 31, 2012;

Enterprise Value/Current Production, which is defined as Enterprise Value divided by current average daily production;

Enterprise Value/2013E Production, which is defined as Enterprise Value divided by projected 2013E average daily production; and

Enterprise Value/2014E Production, which is defined as Enterprise Value divided by projected 2014E average daily production.

The mean and median trading multiples are set forth below. The table also includes relevant multiple ranges selected by Evercore based on the resulting rangeimplied per share values of multiples and certain other considerations related to the specific characteristics of Pioneer.Pioneer common stock:

Benchmark

  Mean  Median

EV/2013E EBITDAX

  9.0x  8.0x

EV/2014E EBITDAX

  7.1x  6.4x

EV/Proved Reserves ($/BOE)

  $23.53  $24.12

EV/Current Production ($/BOEPD)

  $119,571  $109,932

EV/2013E Production ($/BOEPD)

  $109,364  $97,316

EV/2014E Production ($/BOEPD)

  $90,832  $81,273

 

BenchmarkPublic Trading Comparables

Pioneer
Statistic
  Reference Range Implied Enterprise Value Per
Share Range ($ billions)for
Pioneer

EV/2013EAggregate Value to Estimated 2021 EBITDAX

  8.0x$2,831MM4.5x – 13.0x5.5x  $18.963.61 – $30.4$81.16

EV/2014EAggregate Value to Estimated 2022 EBITDAX

  6.5x$3,453MM3.5x – 9.5x4.8x  $20.059.67 – $29.3$87.62

EV/Proved Reserves ($/BOE)Price to Estimated 2021 Cash Flow per Share

  $22.0016.07/sh3.0x – $28.004.2x  $23.948.21 – $30.4$68.04

EV/Current Production ($/BOEPD)Price to Estimated 2022 Cash Flow per Share

  $110,00019.97/sh2.5x – $155,0003.6x  $19.449.92 – $27.3$72.82

EV/2013EAggregate Value to Proved Reserves (Boe)

1,136 MMBoe$9.00 – $13.00$48.42 – $75.83

Aggregate Value to Current Production ($/BOEPD)(Boepd)

375 Mboepd$30,000 – $40,000$54.55 – $77.15

No company utilized in the comparable company analysis is identical to Parsley or Pioneer. In evaluating comparable companies, Morgan Stanley made judgments and assumptions with regard to industry performance, general business, economic, market and financial conditions and other matters, which are beyond the control of Parsley and Pioneer. These include, among other things, the impact of competition on the businesses of Parsley and Pioneer and the industry generally, industry growth and the absence of any adverse material change in the financial condition and prospects of Parsley, Pioneer or the industry, or in the financial markets in general.

Precedent Transactions Analysis

Morgan Stanley performed a precedent transactions analysis, which is designed to imply a value of a company based on publicly available financial terms for selected transactions.

In connection with its analysis, Morgan Stanley compared publicly available statistics for four transactions involving exploration and production targets with assets primarily located in the Permian Basin and six transactions with exploration and production targets with diversified assets located in multiple regions. Morgan Stanley deemed these U.S. public company transactions to be comparable based on target asset location, transaction size and transaction structure.

For purposes of the analysis of the precedent transactions, Morgan Stanley analyzed, among other things, the following statistics:

the ratio of transaction value to latest quarter production (measured in barrels of oil equivalent per day);

the ratio of transaction value to fiscal year + 1 (defined as the fiscal year in which the transaction was announced) EBITDAX (based on Wall Street consensus estimates); and

the ratio of share price to fiscal year + 1 cash flow per share (based on Wall Street consensus estimates).

The metrics for each of the precedent transactions are summarized as follows:

Transaction

  TV /
Current
Production
($/Boepd)
   TV /
EBITDAX
(FY + 1)
(x)
   Offer Price
/ CFPS
(FY + 1)
(x)
 

Permian Basin

      

ConocoPhillips / Concho Resources, Inc. (2020)

  $41,854    5.0x    3.8x 

Parsley Energy, Inc. / Jagged Peak Energy, Inc. (2019)

  $57,966    5.1x    3.9x 

Diamondback Energy / Energen (2018)

  $94,428    8.8x    8.3x 

Concho Resources / RSP Permian (2018)

  $149,054    9.9x    9.4x 

Diversified, Partially Permian or Other Basin

      

Devon Energy Corporation / WPX Energy, Inc. (2020)

  $34,334    3.7x    2.0x 

Chevron Corporation / Noble Energy, Inc. (2020)

  $37,860    7.1x    3.3x 

Callon Petroleum Company / Carrizo Oil & Gas, Inc. (2019)

  $74,865    4.3x    1.9x 

Occidental Petroleum Corporation / Anadarko Petroleum Corporation (2019)

  $77,295    7.0x    5.9x 

Encana Corporation / Newfield Exploration Company (2018)

  $38,919    4.9x    3.9x 

Chesapeake Energy Corporation / WildHorse Resource Development Corporation (2018)

  $81,466    5.6x    3.9x 

Based on the analysis of the relevant metrics for each of the precedent transactions, and upon the application of its professional judgment and experience (which included the exclusion of outliers and weighting more heavily the precedent transactions which Morgan Stanley deemed most comparable to the contemplated combination between Pioneer and Parsley in the relevant metrics), Morgan Stanley selected a representative range of financial multiples of the precedent transactions and applied this range of multiples to the relevant Parsley and Pioneer statistics (based on Wall Street consensus estimates for Parsley and Pioneer EBITDAX and cash flow per share). Morgan Stanley calculated the following ranges of the implied per share value of Parsley Class A common stock.

Precedent Transactions

Parsley
Statistic
Reference RangeImplied Value
Per Share Range
for Parsley

Aggregate Value to Current Production (Boepd)

183 Mboepd$30,000 – $50,000$5.70 – $14.49

Aggregate Value to FY + 1 EBITDAX

  $110,0001,314MM5.0x – $140,0007.0x  $20.08.28 – $25.4$14.60

EV/2014E Production ($/BOEPD)Price to FY + 1 Cash Flow Per Share

  $85,0002.81 / Sh3.0x – $120,0005.0x  $18.18.44 – $25.5$14.06

Morgan Stanley calculated the following ranges of the implied per share value of Pioneer common stock.

Precedent Transactions

Pioneer
Statistic
Reference RangeImplied Value Per
Share Range for
Pioneer

Aggregate Value to Current Production (Boepd)

375 Mboepd$30,000 – $50,000$54.55 – $99.76

Aggregate Value to FY + 1 EBITDAX

$2,831MM5.0x – 7.0x$72.15 – $106.32

Price to FY + 1 Cash Flow Per Share

$16.07 / Sh3.0x – 5.0x$48.21 – $80.35

Evercore appliedNo company or transaction utilized in the relevant multiplesprecedent transaction analysis is identical to Pioneer’s projected 2013EParsley, Pioneer or the mergers. In evaluating the precedent transactions, Morgan Stanley made judgments and 2014E EBITDAX (please read “The Merger — Unaudited Financial Projectionsassumptions with regard to general business, market and financial conditions and other matters, which are beyond the control of Parsley and Pioneer. These include, among other things, the impact of competition on the business of Parsley, Pioneer or the industry generally, industry growth and the absence of any adverse material change in the financial condition of Parsley, Pioneer, Southwest”), proved reserves,the industry or in the financial markets in general, which could affect the public trading value of the companies and current, 2013Ethe aggregate value and 2014E average daily production to determine a selected Enterprise Value range of $20.0 billion to $28.0 billion. After adjusting for net debt and shares outstanding at June 30, 2013, Evercore determined an implied equity value per share range of $127.52 per share to $184.59 per share.

Precedent M&A Transaction Analysis

Evercore reviewed selected publicly available information for oil and gas corporate transactions announced between March 2010 and April 2013 and selected 12 transactions involving companies that Evercore deemed to have certain characteristics that are similar to those of Pioneer, including transactions involving targets which were domestic exploration and production companies, although Evercore noted that none of the selected transactions or the selected companies that participated in the selected transactions were directly comparable to Pioneer or Pioneer Southwest. Evercore applied relevant transaction multiples ranging from 8.0x to 10.5x 2013E EBITDAX, 7.0x to 9.0x 2014E EBITDAX, $20.00 to $30.00 per BOE of proved reserves, and $110,000 to $150,000 per average daily produced BOE to determine a selected Enterprise Value range of $20.5 billion to

$27.5 billion. After adjusting for net debt and shares outstanding at June 30, 2013, Evercore determined an implied equity value per share range of $131.08 per share to $181.03 per share.which they are being compared.

Discounted Cash Flow Analysis

EvercoreMorgan Stanley performed a discounted cash flow analysis on both Pioneer and Parsley based on estimates of Pioneer by valuing thefuture cash flows to be received by Pioneer under two different commodity price scenarios for the three-year period endingfrom January 1, 2021 through December 31, 2015 based on2024 and calculated a terminal value at the projections received from end of such projection period.

Pioneer management (please read “The Merger — Unaudited Financial ProjectionsDiscounted Cash Flow Analysis

With respect to Pioneer, Morgan Stanley calculated a range of implied total equity values of Pioneer and values per share of Pioneer Southwest”). Assumingcommon stock based on estimates of future unlevered free cash flows of Pioneer based on estimates by Pioneer management from January 1, 2021 through December 31, 2024. Morgan Stanley calculated a terminal value range for Pioneer by applying an exit EBITDAX multiple atrange of 4.5x to 6.5x to the EBITDA of Pioneer for the terminal year. Morgan Stanley then discounted the unlevered free cash flows and terminal value to present value as of December 31, 20152020 using discount rates of 8.0x7.2% to 10.0x8.8%, representing the range of discount rates for Pioneer selected by Morgan Stanley based on Pioneer’s current and recent historical multiple and an assumed discount rate of 9.0% to 11.0% derived by taking into consideration a weighted average cost of capital calculation, Evercore determined an impliedcapital. Morgan Stanley then deducted the net debt of Pioneer from the resulting value to derive equity value per sharevalue. Net debt was based on the estimated $1.668 billion of net debt as of December 31, 2020 provided in the Pioneer projections. Based on the above-described analysis, Morgan Stanley derived a range of $116.99implied values per share to $157.74 per share under the $85.00 oil and $4.25 gas pricing case and an implied equity value per share range of $165.47 per share to $219.26 per share under the $100.00 oil and $4.25 gas pricing case.

Research Analyst Price Targets

Evercore analyzed equity research analyst estimates of potential future value for shares of Pioneer common stock commonly referredas of December 31, 2020 of $82.05 to $120.50.

Parsley Discounted Cash Flow Analysis

With respect to Parsley, Morgan Stanley calculated a range of implied total equity values of Parsley and values per share of Parsley Class A common stock based on estimates of future unlevered free cash flows of Parsley based on the Pioneer projections for Parsley from January 1, 2021 through December 31, 2024. Morgan Stanley calculated a terminal value range for Parsley by applying an exit multiple range of 4.0x to 6.0x to the EBITDA of Parsley for the terminal year. Morgan Stanley then discounted the unlevered free cash flows and terminal value to present value as of December 31, 2020 using discount rates of 7.9% to 9.3%, representing the range of discount rates for Parsley selected by Morgan Stanley based on Parsley’s weighted average cost of capital. Morgan Stanley then deducted the net debt of Parsley from the resulting value to derive equity value. Net debt was based on the estimated $2.846 billion of net debt as of December 31, 2020 provided in the Pioneer projections for Parsley. Based on the above-described analysis, Morgan Stanley derived a range of implied values per share of Parsley Class A common stock as of December 31, 2020 of $8.35 to $13.94.

Other Information

Historical Trading Prices

For reference purposes only, Morgan Stanley reviewed the historical trading ranges of Parsley and Pioneer common stock for the period between October 21, 2019 to October 19, 2020. Morgan Stanley noted that, on October 19, 2020, the closing price of Parsley Class A common stock was $10.10 per share and the closing price of Pioneer common stock was $87.05 per share. Morgan Stanley noted that, for the period between October 21, 2019 to October 19, 2020, the low and high closing prices for Parsley and Pioneer common stock were as follows:

Company

  Low   High 

Parsley

  $4.12   $20.00 

Pioneer

  $56.77   $158.11 

Morgan Stanley noted that the historical trading prices were presented for reference purposes only and were not relied upon for valuation purposes.

Equity Research Valuation

Parsley

Morgan Stanley reviewed sell-side analyst price targets per share of Parsley Class A common stock prepared and published by 31 equity research analysts during the time period from August 6, 2020 to October 19, 2020. These targets generally reflect each analyst’s estimate of the 12-month future public market trading price per share of Parsley Class A common stock and were not discounted to reflect present values. The range of undiscounted price targets for shares of Parsley Class A common stock was $11.00 per share to $20.00 per share.

In order to better compare the price targets with the offer consideration, Morgan Stanley discounted such price targets to present value by applying, for a one-year discount period, an illustrative discount rate of 10.4%, which was selected by Morgan Stanley based on publicly availableParsley’s assumed cost of equity of 10.4%. This analysis indicated an implied range of equity values for shares of Parsley Class A common stock of $9.97 per share to $18.12 per share.

The price targets published by equity research analysts do not necessarily reflect current market trading prices for shares of Parsley Class A common stock and these estimates are subject to uncertainties, including the future financial performance of Parsley and future financial market conditions.

Morgan Stanley noted that the equity research analysts’ price targets were presented for reference purposes only and were not relied upon for valuation purposes.

Pioneer

Morgan Stanley reviewed sell-side analyst price targets per share of Pioneer common stock prepared and published with respectby 34 equity research analysts during the time period from August 4, 2020 to Pioneer. Evercore observed that, asOctober 19, 2020. These targets generally reflect each analyst’s estimate of August 7, 2013, research analyst one-year forwardthe 12-month future public market trading price per share of Pioneer common stock and were not discounted to reflect present values. The range of undiscounted price targets for shares of Pioneer common stock ranged from $123.00was $91.00 per share to $270.00$170.00 per share. Evercore then discounted

In order to better compare the price targets 12 months atwith the offer consideration, Morgan Stanley discounted such price targets to present value by applying, for a one-year discount period, an assumedillustrative discount rate of 9.0% to 11.0%, derivedwhich was selected by taking into consideration aMorgan Stanley based on Pioneer’s assumed cost of equity calculation, resulting in a present valueof 9.0%. This analysis indicated an implied range from $110.81of equity values for shares of Pioneer common stock of $83.51 per share to $229.36$156.01 per shareshare.

The price targets published by equity research analysts do not necessarily reflect current market trading prices for shares of Pioneer common stock.stock and these estimates are subject to uncertainties, including the future financial performance of Pioneer and future financial market conditions.

Morgan Stanley noted that the equity research analysts’ price targets were presented for reference purposes only and were not relied upon for valuation purposes.

Precedent Premia Analysis

Morgan Stanley considered mean premiums paid in all reported transactions where the consideration was stock and which had a transaction value of $1.0 billion or more from January 1, 1996 through December 31, 2019. Morgan Stanley noted that the mean across transactions included in the data set was 29.1%, over the unaffected closing stock price (defined as the earliest of the day before market rumors directly mentioning the company name or the last full day of trading before transaction announcement). Based on this analysis and its professional judgment, Morgan Stanley selected a reference premium range of 15% to 30% to apply to the closing stock price of Parsley Class A common stock on October 19, 2020 of $10.10. This analysis indicated an implied range of equity values for shares of Parsley Class A common stock of $11.62 per share to $13.13 per share.

Morgan Stanley noted that the precedent premia analysis was presented for reference purposes only and were not relied upon for valuation purposes.

Pro Forma Merger Analysis

Relative Contribution Analysis

Evercore performedMorgan Stanley compared the respective percentage ownership of Parsley stockholders and Pioneer stockholders of the combined company to Parsley’s and Pioneer’s respective percentage contribution (and the implied ownership based on such contribution) to the combined company’s aggregate value and equity value, estimated 2021 and 2022 operating cash flow, estimated 2021 and 2022 free cash flow (defined as operating cash flow less capital expenditures), estimated 2021 and 2022 EDITDAX, estimated 2021 and 2022 production and net asset valuation based on Wall Street consensus estimates. The implied ownership based on the estimated 2021 and 2022 EBITDAX contribution and the estimated 2021 and 2022 production contribution was calculated on a leverage adjusted basis, which neutralizes the impact of financial leverage and is calculated as the pro forma asset contributions multiplied by the pro forma combined aggregate value, less net debt. The following table summarizes Morgan Stanley’s analysis:

   Contribution   PF Asset
Contribution
  Implied Equity
Contribution
 
   Pioneer   Parsley   Combined   Pioneer  Parsley  Pioneer  Parsley 

Market Value ($MM)

          

Aggregate Value

   16,622    7,329    23,951    69  31  69  31

Equity Value

   14,424    4,207    18,631    77  23  77  23

Operating Cash Flow

          

2021E

   2,663    1,171    3,834    69  31  69  31

2022E

   3,309    1,472    4,781    69  31  69  31

Free Cash Flow

          

2021E

   788    521    1,309    60  40  60  40

2022E

   1,426    646    2,072    69  31  69  31

EBITDAX ($MM)

           Leverage Adjusted 

2021E

   2,831    1,314    4,145    68  32  76  24

2022E

   3,453    1,615    5,068    68  32  76  24

Production (Mboepd)

           Leverage Adjusted 

2021E

   370    176    547    68  32  75  25

2022E

   386    182    568    68  32  76  24

Net Asset Valuation ($MM)

           

Consensus Pricing

   22,639    7,906    30,545    74  26  74  26

Morgan Stanley noted that the operating performance contribution metrics implied an exchange ratio reference range of 0.126x to 0.263x, as compared to the exchange ratio of 0.1252x provided for in the merger agreement. Morgan Stanley noted that the relative contribution analysis of Pioneer Southwestwas provided for reference purposes only and was not relied upon for valuation purposes.

Implied Exchange Ratios Analysis

Using the implied per share reference ranges for Parsley and Pioneer toindicated in the pro forma Pioneer based on current capitalizationscomparable companies analyses, precedent transactions analysis and discounted cash flow analysis of Pioneer SouthwestParsley and Pioneer year-end 2012 proved reserves, 2013 and 2014 estimated EBITDAX and Cash Flow, and current, 2013 and 2014 estimated production. Following this analysis, Evercore determined andescribed above, Morgan Stanley calculated ranges of implied exchange ratios of Parsley Class A common stock to Pioneer common stock. This implied exchange ratio range of 0.1516 to 0.1917.

Exchange Ratio Summary

Evercore analyzedanalysis indicated the following implied exchange ratios from the valuation techniques utilized for the valuation of Pioneer Southwest and Pioneer. These valuation techniques included Peer Group Trading Analysis, Corporate Precedent M&A Transaction Analysis, Discounted Cash Flow Analysis and Research Analyst Price Targets. When comparing the high valueratio reference ranges, as compared to the low value, and the low value to the high value for each technique, the resulting exchange ratio range was 0.1220 to 0.3843.

Evercore compared the results of the foregoing analyses to the proposedstock consideration exchange ratio of 0.2325 shares0.1252x provided for in the merger agreement:

Implied Exchange Ratio

Public Trading Comparables

Aggregate Value to Estimated 2021 EBITDAX

0.083x – 0.156x

Aggregate Value to Estimated 2022 EBITDAX

0.069x – 0.189x

Price to Estimated 2021 Cash Flow Per Share

0.124x – 0.247x

Price to Estimated 2022 Cash Flow Per Share

0.121x – 0.258x

Aggregate Value to Proved Reserves

0.109x – 0.316x

Aggregate Value to Current Production

0.074x – 0.185x

Precedent Transactions

Aggregate Value to Current Production

0.057x – 0.266x

Aggregate Value to FY + 1 EBITDAX

0.078x – 0.202x

Price to FY + 1 Cash Flow Per Share

0.105x – 0.292x

Discounted Cash Flow Analysis

Exit Multiple Method

0.069x – 0.170x

For reference purposes only, using the implied per share reference ranges for Parsley and Pioneer indicated in the historical trading prices and equity research valuation targets of Parsley and Pioneer described above, and using the closing price of Pioneer common stock on October 19, 2020 of $87.05 per share and the implied per share reference range for each outstanding Pioneer Southwest common unit, other than Pioneer Southwest common units owned by Pioneer and its affiliates, noting thatParsley indicated in the proposed exchange ratio was within orprecedent premia analysis described above, the rangeMorgan Stanley calculated ranges of the implied exchange ratios of Parsley Class A common stock to Pioneer common stock. This implied exchange ratio analysis indicated the following implied exchange ratio reference ranges, as compared to the exchange ratio of 0.1252x provided for eachin the merger agreement:

Implied Exchange Ratio

Historical Trading Price

October 21, 2019 to October 19, 2020

0.026x – 0.352x

Equity Research Valuation

Present Value of One Year Price Targets

0.064x – 0.217x

Relative Contribution Analysis

0.126x – 0.263x

Precedent Premia Analysis

All Stock Transaction Premium

0.133x – 0.151x

Morgan Stanley noted that the historical trading prices, equity research analysts’ price targets and precedent premia analysis were presented for reference purposes only and were not relied upon for valuation purposes.

Accretion / Dilution Analysis

Based on the projections and estimated annual pre-tax synergies provided by Pioneer management, Morgan Stanley performed a pro forma analysis of the valuation techniques reviewed by Evercore.financial impact of the mergers on Pioneer’s estimated cash flow per share (defined as “discretionary cash flow”) and free cash flow per share for 2021 through 2023 at strip pricing. Based on this analysis, the mergers would be:

12.2%, 17.6% and 18.1% accretive to Pioneer’s estimated cash flow per share for years end 2021, 2022 and 2023, respectively.

17.7%, 25.4% and 22.0% accretive to Pioneer’s estimated free cash flow per share for years end 2021, 2022 and 2023, respectively.

General

The foregoing summary of certain material financial analyses does not purport to be a complete description of the analyses or data presented by Evercore. In connection with the review of the merger Evercoreagreement and the transactions contemplated thereby by the Pioneer board, Morgan Stanley performed a variety of financial and comparative analyses for purposes of rendering its opinion to the Pioneer Southwest Conflicts Committee.opinion. The preparation of a fairnessfinancial opinion is a complex process and is not necessarily susceptible to a partial analysis or summary description. Selecting portionsIn arriving at its opinion, Morgan Stanley considered the results of theall of its analyses as a whole and did not attribute any particular weight to any analysis or factor that it considered. Morgan Stanley believes that selecting any portion of the summary

described above,its analyses, without considering all of the analyses as a whole, couldwould create an incomplete view of the processesprocess underlying Evercore’sits analyses and opinion. In arriving at its fairness determination, Evercore considered the results of all the analyses and did not draw, in isolation, conclusions from or with regard to any one analysis or factor considered by it for purposes of its opinion. Rather, Evercore made its determination as to fairness on the basis of its experience and professional judgment after considering the results of all the analyses. In addition, EvercoreMorgan Stanley may have given various analyses and factors more or less weight than other analyses and factors, and may have deemed various assumptions more or less probable than other assumptions. As a result, the ranges of valuations resulting from any particular analysis or combination of analyses described above should not be taken to be theMorgan Stanley’s view of Evercore with respect to the actual value of Pioneer Southwest common unitsParsley or the Pioneer common stock. No company or partnership used in the abovePioneer. In performing its analyses, as a comparison is directly comparable to Pioneer Southwest or Pioneer, and no precedent transaction used is directly comparable to the merger. Furthermore, Evercore’s analyses involve complex considerations and judgments concerning financial and operating characteristics and other factors that could affect the acquisition, public trading or other values of the companies, partnerships or transactions used, includingMorgan Stanley made numerous judgments and assumptions with regard to industry performance, general business, regulatory, economic, market and financial conditions and other matters, many of which are beyond the control of Pioneer SouthwestParsley or Pioneer. These include, among other things, the impact of competition on the business of Parsley, Pioneer and their respective advisors.

Evercore prepared these analyses solely for the informationindustry generally, industry growth, and benefitthe absence of any material adverse change in the financial condition and prospects of Parsley, Pioneer Southwest Conflicts Committee and foror the purpose of providing an opinion toindustry, or in the Pioneer Southwest Conflicts Committee as to the fairness of the exchange ratio, from a financial point of view, to the Pioneer Southwest unaffiliated unitholders. These analyses do not purport to be appraisals or to necessarily reflect the prices at which the business or securities actually may be sold.markets in general. Any estimates contained in theseMorgan Stanley’s analyses are not necessarily indicative of actual future results or actual values, which may be significantly more or less favorable than those suggested by such estimates.

Morgan Stanley conducted the analyses described above solely as part of its analysis of the fairness, from a financial point of view, to Pioneer of the exchange ratio pursuant to the merger agreement and in connection with the rendering of its oral opinion, subsequently confirmed by delivery of a written opinion, dated October 20, 2020, to the Pioneer board. These analyses do not purport to be appraisals or to reflect the prices at which shares of Parsley Class A common stock or shares of Pioneer common stock might actually trade following the consummation of the mergers or at any time.

The exchange ratio pursuant to the merger agreement was determined by Parsley and Pioneer through arm’s-length negotiations between Parsley and Pioneer and was approved by the Pioneer board. Morgan Stanley provided advice to Pioneer during these negotiations. Morgan Stanley did not, however, recommend any specific exchange ratio to Pioneer or the Pioneer board or opine that any specific exchange ratio constituted the only appropriate exchange ratio for the mergers. Morgan Stanley’s opinion did not address the relative merits of the mergers as compared to any other alternative business transaction, or other alternatives, or whether or not such alternatives could be achieved or are available. In addition, Morgan Stanley’s opinion was not intended to, and did not, in any manner, address the price at which the Pioneer common stock would trade following the mergers or at any time, and Morgan Stanley expressed no opinion or recommendation to any holder of shares of Pioneer common stock or Parsley Class A common stock as to how such holder should vote at the Pioneer special meeting or the Parsley special meeting, respectively, or whether to take any other action with respect to the mergers.

Morgan Stanley’s opinion and its presentation to the Pioneer board was one of many factors taken into consideration by the Pioneer board in deciding to consider, approve and declare the advisability of the merger agreement and the transactions contemplated thereby and to recommend the approval of the Pioneer stock issuance proposal by the holders of Pioneer common stock. Consequently, the analyses described above should not be viewed as determinative of the opinion of the Pioneer board with respect to the exchange ratio pursuant to the merger agreement or of whether the Pioneer board would have been willing to agree to a different exchange ratio.

Morgan Stanley’s opinion was approved by a committee of Morgan Stanley investment banking and other professionals in accordance with Morgan Stanley’s customary practice.

Morgan Stanley is a global financial services firm engaged in the securities, investment management and individual wealth management businesses. Its securities business is engaged in securities underwriting, trading and brokerage activities, foreign exchange, commodities and derivatives trading, prime brokerage, as well as providing investment banking, financing and financial advisory services. Morgan Stanley, its affiliates, directors and officers may at any time invest on a principal basis or manage funds that invest, hold long or short positions, finance positions, and may trade or otherwise structure and effect transactions, for their own account or the accounts of their customers, in debt or equity securities or loans of Pioneer, Parsley, QEP, which owns approximately 17% of the outstanding Parsley Class A common stock through its affiliate Quantum, or any other company, or any currency or commodity, that may be involved in the transactions contemplated by the merger agreement, or any related derivative instrument.

Under the terms of its engagement letter, Morgan Stanley provided the Pioneer board with financial advisory services and a financial opinion described in this section and attached as Annex C to this joint proxy statement/prospectus in connection with the mergers, and Pioneer has agreed to pay Morgan Stanley a fee for its services of $17 million, of which $2 million was payable upon the rendering of Morgan Stanley’s fairness opinion and the remainder of which is contingent upon completion of the mergers. Pioneer has also agreed to reimburse Morgan Stanley for its reasonable expenses, including reasonable fees of outside counsel and other professional advisors, incurred in connection with its engagement. In addition, Pioneer has agreed to indemnify Morgan Stanley and its affiliates, their respective officers, directors, employees and agents and each other person, if any, controlling Morgan Stanley or any of its affiliates against certain liabilities and expenses, including certain liabilities under the federal securities laws, relating to or arising out of Morgan Stanley’s engagement.

In the two years prior to the date of Morgan Stanley’s opinion, Morgan Stanley and its affiliates provided (i) financing services to Pioneer and received fees of less than $3.0 million for such services to Pioneer, and (ii) financing services to Parsley and received fees of approximately $1.0 to $5.0 million for such services to Parsley. In the two years prior to the date of Morgan Stanley’s opinion, Morgan Stanley and its affiliates did not provide financial advisory or financing services to QEP for which Morgan Stanley or any of its affiliates received any fees. Morgan Stanley may seek to provide financial advisory and financing services to Pioneer, Parsley and QEP, and their respective affiliates in the future and would expect to receive fees for the rendering of these services. In addition, Morgan Stanley, its affiliates, directors or officers, including individuals working with Pioneer in connection with this transaction, may have committed and may commit in the future to invest in private equity funds managed by QEP or its affiliates.

Opinions of Parsley’s Financial Advisors

Opinion of Credit Suisse Securities (USA) LLC

On October 20, 2020, Credit Suisse rendered its oral opinion to the Parsley board (which was subsequently confirmed in writing by delivery of Credit Suisse’s written opinion addressed to the Parsley board dated the same date) as to, as of October 20, 2020, the fairness, from a financial point of view, to the Parsley Class A stockholders of the exchange ratio to be received by the Parsley Class A stockholders with respect to their shares of Parsley Class A common stock in the first merger and the fairness, from a financial point of view, to the Parsley Class B stockholders of the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger pursuant to the merger agreement.

Credit Suisse’s opinion was directed to the Parsley board (in its capacity as such), and only addressed the fairness, from a financial point of view, to the Parsley Class A stockholders of the exchange ratio to be

received by the Parsley Class A stockholders with respect to their shares of Parsley Class A common stock in the first merger and the fairness, from a financial point of view, to the Parsley Class B stockholders of the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger pursuant to the merger agreement, and did not address any other aspect or implication (financial or otherwise) of the mergers. The summary of Credit Suisse’s opinion in this joint proxy statement/prospectus is qualified in its entirety by reference to the full text of its written opinion, which is included as Annex D to this joint proxy statement/prospectus and sets forth the procedures followed, assumptions made, qualifications and limitations on the review undertaken and other matters considered by Credit Suisse in preparing its opinion. However, neither Credit Suisse’s written opinion nor the summary of its opinion and the related analyses set forth in this joint proxy statement/prospectus are intended to be, and they do not constitute, advice or a recommendation to any securityholder as to how such holder should vote or act on any matter relating to the mergers.

Parsley advised Credit Suisse, and Credit Suisse assumed for purposes of its analyses, that there is, and as of the effective time there will be, one outstanding share of Parsley Class B common stock associated with each outstanding Parsley LLC unit other than the Excluded Opco LLC Units (as defined in the merger agreement), that each Parsley Class B stockholder currently holds, and as of the effective time will hold, an equivalent number of Parsley LLC units and that, pursuant to the Parsley LLC agreement, Parsley LLC unitholders other than Parsley have the right to exchange a Parsley LLC unit together with the associated share of Parsley Class B common stock for one share of Parsley Class A common stock and, consequently, for purposes of Credit Suisse’s analyses and opinion, at the direction of the Parsley board, Credit Suisse treated one share of Parsley Class B common stock and the associated Parsley LLC unit as a single integrated security held by each Parsley Class B stockholder (referred to herein as a “Parsley LLC stapled unit”). For purposes of Credit Suisse’s analyses and opinion, at the direction of the Parsley board, Credit Suisse assumed that (i) the exchange ratio will be received by Parsley Class A stockholders in respect of their Parsley Class A common stock as a result of the first merger, (ii) the exchange ratio will be received by the Parsley Class B stockholders in respect of their Parsley LLC stapled units as a result of the Opco merger, and (iii) a Parsley LLC stapled unit is equivalent in value and identical in all other respects material to Credit Suisse’s analyses and opinion to a share of Parsley Class A common stock.

In arriving at its opinion, Credit Suisse:

reviewed the merger agreement and certain publicly available business and financial information relating to Parsley and Pioneer;

reviewed certain other information relating to Parsley and Pioneer, including:

financial forecasts and projected production and operating data relating to Parsley provided to Credit Suisse by Parsley’s management (the “Parsley projections”) reflecting alternative commodity price assumptions and based on certain oil and gas reserve information prepared by Parsley’s management regarding its oil and gas reserves (the “Parsley reserve information”);

(x) financial forecasts provided to Credit Suisse by Pioneer’s management, as further described in “ —Certain Pioneer Unaudited Prospective Financial and Operating Information” (referred to in this section as “Pioneer projections”) and (y) projected production and operating data relating to Pioneer provided to Credit Suisse by Pioneer’s management as adjusted to reflect, among other things, associated riskings and alternative commodity price assumptions discussed with and agreed by Parsley management (referred to in this section as “Pioneer adjusted production and operating projections”), based on certain oil and gas reserve information prepared by Pioneer’s management regarding its oil and gas reserves (the “Pioneer reserve information”);

riskings for Parsley’s and Pioneer’s oil and gas reserves reviewed and discussed with Credit Suisse by Parsley’s management (the “riskings for Parsley and Pioneer”); and

certain publicly available market data regarding future oil and gas commodity pricing reviewed and discussed with Credit Suisse by Parsley’s management (the “publicly available future oil pricing data”);

met with the management of Parsley and certain of its representatives and discussed the businesses and prospects of Parsley and Pioneer;

considered certain financial and stock market data of Parsley and Pioneer, and compared that data with similar data for other companies with publicly traded equity securities in businesses Credit Suisse deemed similar to those of Parsley and Pioneer, respectively;

considered, to the extent publicly available, the financial terms of certain other business combinations and other transactions that had been effected or announced; and

considered such other information, financial studies, analyses and investigations and financial, economic and market criteria that Credit Suisse deemed relevant.

In connection with its review, Credit Suisse did not independently verify any of the foregoing information, and Credit Suisse assumed and relied upon such information being complete and accurate in all respects material to its analyses and opinion. With respect to the Parsley projections (including the alternative commodity pricing assumptions), Credit Suisse was advised by the management of Parsley, and Credit Suisse assumed, with Parsley’s consent, that such forecasts and estimates were reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of Parsley as to the future financial performance of Parsley. With respect to the Pioneer projections and the Pioneer adjusted production and operating projections (including the alternative commodity pricing assumptions), Credit Suisse was advised by the management of Parsley, and Credit Suisse assumed, with Parsley’s consent, that such forecasts and estimates were reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of Parsley as to the future financial performance of Pioneer. With respect to the Parsley reserve information, Credit Suisse was advised by the management of Parsley, and Credit Suisse assumed, with Parsley’s consent, that such reserve information was reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of Parsley as to Parsley’s oil and gas reserves. With respect to the Pioneer reserve information, Credit Suisse was advised by the management of Parsley, and Credit Suisse assumed, with Parsley’s consent, that such reserve information was reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of Parsley as to Pioneer’s oil and gas reserves. With respect to the riskings for Parsley and Pioneer, Credit Suisse was advised by the management of Parsley, and Credit Suisse assumed, with Parsley’s consent, that such riskings were reasonably prepared in good faith on bases reflecting such management’s best currently available estimates and judgments as to the appropriate riskings for the Parsley reserve information and the Pioneer reserve information, as applicable. At the direction of the Parsley board, Credit Suisse assumed that the Parsley projections, the Pioneer projections, the Pioneer adjusted production and operating projections, the Parsley reserve information, the Pioneer reserve information, the riskings for Parsley and Pioneer, and the publicly available future oil pricing data were a reasonable basis upon which to evaluate Parsley, Pioneer and the mergers, and at the direction of the Parsley board, Credit Suisse relied upon the Parsley projections, the Pioneer projections, the Pioneer adjusted production and operating projections, the Parsley reserve information, the Pioneer reserve information, the riskings for Parsley and Pioneer, and the publicly available future oil pricing data for purposes of its analyses and opinion. Credit Suisse expressed no view or opinion with respect to the Parsley projections, the Pioneer projections, the Pioneer adjusted production and operating projections, the Parsley reserve information, the Pioneer reserve information, the riskings for Parsley and Pioneer, and the publicly available future oil pricing data, or the assumptions and methodologies upon which any of the foregoing were based.

In addition, Credit Suisse relied upon, without independent verification (i) the assessments of the management of Parsley with respect to Pioneer’s ability to integrate the businesses of Parsley and Pioneer and (ii) the assessments of the management of Parsley as to Pioneer’s existing technology and future capabilities with

respect to the extraction of Pioneer’s and Parsley’s oil and gas reserves and other oil and gas resources (and associated timing and costs) and the production of various oil and gas products, including liquefied natural gas (and associated timing and costs) and, with Parsley’s consent, assumed that there had been no developments that would adversely affect such management’s views with respect to such technologies, capabilities, timing and costs. Credit Suisse assumed with the consent of the Parsley board that the integrated mergers would qualify as a “reorganization” within the meaning of Section 368(a) of the Code. Credit Suisse also assumed, with Parsley’s consent, that, in the course of obtaining any regulatory or third party consents, approvals or agreements in connection with the mergers, no modification, delay, limitation, restriction or condition would be imposed that would have an adverse effect on Parsley, Pioneer or the contemplated benefits of the mergers, that the mergers would be consummated in compliance with all applicable laws and regulations and in accordance with the terms of the merger agreement, without waiver, modification or amendment of any term, condition or agreement thereof that would be material to Credit Suisse’s analyses or opinion. In addition, Credit Suisse was not requested to, and did not, make an independent evaluation or appraisal of the assets or liabilities (contingent or otherwise) of Parsley or Pioneer, and Credit Suisse was not furnished with any such evaluations or appraisals (other than publicly available oil and gas reserve information with respect to Parsley and Pioneer and certain oil and gas reserve information with respect to Parsley and Pioneer prepared by their respective managements or third party oil and gas reserve consultants).

Credit Suisse’s opinion addressed only the fairness, from a financial point of view, to the Parsley Class A stockholders of the exchange ratio to be received by the Parsley Class A stockholders with respect to their shares of Parsley Class A common stock in the first merger and the fairness, from a financial point of view, to the Parsley Class B stockholders of the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger pursuant to the merger agreement, in the manner set forth therein, and did not address any other aspect or implication (financial or otherwise) of the mergers or any agreement, arrangement or understanding entered into in connection therewith or otherwise, including, without limitation, the form or structure of the mergers, the voting agreements entered into by certain holders of shares of Parsley common stock and Parsley LLC units with Pioneer in connection with the mergers, the tax receivable agreement (and the amendment thereto entered into concurrently with the execution of the merger agreement), any obligation or payment that may be required under the tax receivable agreement, and the fairness of the amount or nature of, or any other aspect relating to, any compensation or consideration to be received or otherwise payable to any officers, directors, employees, securityholders or affiliates of any party to the mergers or class of such persons, relative to the exchange ratio or otherwise. Furthermore, Credit Suisse did not express any advice or opinion regarding matters that require legal, regulatory, accounting, insurance, intellectual property, tax, environmental, executive compensation or other similar professional advice, including, without limitation, any advice regarding the amounts of any company’s oil and gas reserves, the riskings attributable to such reserves or any other aspects of any company’s oil and gas reserves. Credit Suisse assumed that Parsley had or would obtain such advice or opinions from the appropriate professional sources. The issuance of Credit Suisse’s opinion was approved by its authorized internal committee.

Credit Suisse’s opinion was necessarily based upon information made available to Credit Suisse as of the date of its opinion and upon financial, economic, market and other conditions as they existed and could be evaluated on the date of its opinion. Credit Suisse did not undertake, and is under no obligation, to update, revise, reaffirm or withdraw its opinion, or otherwise comment on or consider events occurring or coming to its attention after the date of its opinion. In addition, as the Parsley board was aware, the financial projections and estimates that Credit Suisse reviewed relating to the future financial performance of Parsley and Pioneer reflected certain assumptions regarding the oil and gas industry and future commodity prices associated with that industry and the political policies and risk relevant to the conduct of Parsley’s businesses that were subject to significant uncertainty and volatility and that, if different than assumed, could have a material impact on Credit Suisse’s analyses and opinion. Also, as the Parsley board was aware, the financial markets were experiencing unusual volatility and Credit Suisse expressed no opinion or view as to any potential effects of such volatility on Parsley, Pioneer or the mergers. Credit Suisse assumed that the shares of Pioneer common stock to be issued in the mergers would be approved for listing on the NYSE prior to the consummation of the mergers. Credit Suisse’s

opinion did not address the relative merits of the mergers as compared to alternative transactions or strategies that might have been available to Parsley, nor did it address the underlying business decision of the Parsley board or Parsley to proceed with or effect the mergers. Credit Suisse was not requested to, and did not, solicit third party indications of interest in acquiring all or any part of Parsley.

In preparing its opinion to the Parsley board, Credit Suisse performed a variety of analyses, including those described below. The summary of Credit Suisse’s financial analyses is not a complete description of the analyses underlying Credit Suisse’s opinion. The preparation of such an opinion is a complex process involving various quantitative and qualitative judgments and determinations with respect to the financial, comparative and other analytic methods employed and the adaptation and application of those methods to the unique facts and circumstances presented. As a consequence, neither Credit Suisse’s opinion nor the analyses underlying its opinion are readily susceptible to partial analysis or summary description. Credit Suisse arrived at its opinion based on the results of all analyses undertaken by it and assessed as a whole and did not draw, in isolation, conclusions from or with regard to any individual analysis, analytic method or factor. Accordingly, estimatesCredit Suisse believes that its analyses must be considered as a whole and that selecting portions of its analyses, analytic methods and factors, without considering all analyses and factors or the narrative description of the analyses, could create a misleading or incomplete view of the processes underlying its analyses and opinion.

In performing its analyses, Credit Suisse considered business, economic, industry and market conditions, financial and otherwise, and other matters as they existed on, and could be evaluated as of, the date of its opinion. No company, business or transaction used in Credit Suisse’s analyses for comparative purposes is identical to Parsley, Pioneer or the proposed mergers. While the results of each analysis were taken into account in reaching its overall conclusion with respect to fairness from a financial point of view, to the Parsley Class A stockholders of the exchange ratio to be received by the holders of shares of Parsley Class A common stock with respect to their shares of Parsley Class A common stock in the first merger and the fairness, from a financial point of view, to the Parsley Class B stockholders of the exchange ratio to be received by the holders of shares of Parsley Class B common stock with respect to their Parsley LLC stapled units in the first merger and the Opco merger pursuant to the merger agreement, and Credit Suisse did not make separate or quantifiable judgments regarding individual analyses. The reference ranges indicated by Credit Suisse’s financial analyses are illustrative and not necessarily indicative of actual or relative values nor predictive of future results or values, which may be significantly more or less favorable than those suggested by the analyses. In addition, any analyses relating to the value of assets, businesses or securities do not purport to be appraisals or to reflect the prices at which businesses or securities actually may be sold, which may depend on a variety of factors, many of which are beyond Parsley’s control and the control of Credit Suisse. Much of the information used in, and accordingly the results derived from, Evercore’sof, Credit Suisse’s analyses are inherently subject to substantial uncertainty,uncertainty.

Credit Suisse’s opinion and Evercore assumes no responsibility if future results are materially different from those forecastedanalyses were provided to the Parsley board (in its capacity as such) in such estimates. The issuanceconnection with its consideration of the proposed mergers and were among many factors considered by the Parsley board in evaluating the proposed mergers. Neither Credit Suisse’s opinion was approved by an opinion committeenor its analyses were determinative of Evercore.

Except as described above, the Pioneer Southwest Conflicts Committee imposed no other instructionexchange ratio or limitation on Evercoreof the views of the Parsley board with respect to the investigations madeproposed mergers. Under the terms of its engagement by Parsley, neither Credit Suisse’s opinion nor any other advice or services rendered by it in connection with the proposed mergers or otherwise, should be construed as creating, and Credit Suisse should not be deemed to have, any fiduciary duty to the Parsley board, Parsley, Pioneer, any securityholder or creditor of Parsley or Pioneer or any other person, regardless of any prior or ongoing advice or relationships.

Financial Analyses

The following is a summary of certain financial analyses reviewed by Credit Suisse with the Parsley board in connection with the rendering of its opinion to Parsley board on October 20, 2020. The summary does not contain all of the financial data stockholders of Parsley may want or need for purposes of making an independent determination of fair value. Parsley stockholders are encouraged to consult their own financial and other advisors

before making any investment decision in connection with the proposed mergers. The analyses summarized below include information presented in tabular format. The tables alone do not constitute a complete description of the analyses. Considering the data in the tables below without considering the full narrative description of the analyses—as well as the methodologies underlying, and the assumptions, qualifications and limitations affecting, each analysis—could create a misleading or incomplete view of Credit Suisse’s analyses.

For purposes of its analyses, Credit Suisse reviewed a number of financial metrics including:

Enterprise Value—generally the value as of a specified date of the relevant company’s outstanding equity securities (taking into account its options and other outstanding convertible securities) plus the value as of such date of its net debt (the value of its outstanding indebtedness, preferred stock and capital lease obligations less the amount of cash on its balance sheet).

EBITDAX—generally the amount of the relevant company’s earnings before interest, taxes, depreciation, amortization, and exploration expenses for a specified time period.

In addition, the Parsley projections, the Pioneer projections and the Pioneer adjusted production and operating projections on which, at the direction of the Parsley board, Credit Suisse relied included:

Parsley projections

a corporate financial forecast for Parsley based on Parsley management’s financial forecasts for Parsley and NYMEX strip commodity pricing as of September 22, 2020 (the “Parsley Corporate Forecast – 9/22/20”);

a corporate financial forecast for Parsley based on Parsley management’s financial forecasts for Parsley and NYMEX strip commodity pricing as of October 15, 2020 (the “Parsley Corporate Forecast – 10/15/20”);

a reserves-based financial forecast for Parsley based on the Parsley reserve information and NYMEX strip commodity pricing as of October 15, 2020 (“Parsley Reserves-Based Forecast – 10/15/20”);

a reserves-based financial forecast for Parsley based on the Parsley reserve information and NYMEX strip commodity pricing as of October 15, 2020, through 2024 and thereafter $50 per barrel oil pricing (the “Parsley Reserves-Based Forecast – Alternate Pricing”);

Pioneer projections and Pioneer adjusted production and operating projections

a corporate financial forecast for Pioneer based on Pioneer management’s financial forecasts for Pioneer and NYMEX strip commodity pricing as of September 22, 2020 (the “Pioneer Corporate Forecast – 9/22/20”);

a reserves-based financial forecast for Pioneer based on the Pioneer adjusted production and operating projections and NYMEX strip commodity pricing as of October 15, 2020 (the “Pioneer Reserves-Based Forecast – 10/15/20”); and

a reserves-based financial forecast for Pioneer based on the Pioneer adjusted production and operating projections and NYMEX strip commodity pricing as of October 15, 2020, through 2024 and thereafter $50 per barrel oil pricing (the “Pioneer Reserves-Based Forecast – Alternate Pricing”).

Selected Companies Analyses

Credit Suisse considered certain financial data for Parsley, Pioneer and selected companies with publicly traded equity securities Credit Suisse deemed relevant. The selected companies were selected because they were deemed to be similar to Parsley and Pioneer in one or more respects. For purposes of these analyses, (1) Credit

Suisse was directed by Parsley to use the Parsley Corporate Forecast – 9/22/20 and Pioneer Corporate Forecast – 9/22/20, (2) except as otherwise noted, share prices for the selected companies were closing prices as of October 19, 2020 and (3) estimates of future financial performance for the selected companies for the years ending December 31, 2021 and 2022 were based on publicly available research analyst estimates for those companies.

The financial data reviewed included:

Enterprise Value as a multiple of estimated EBITDAX for the year ended December 31, 2021, or “2021E EBITDAX”;

Enterprise Value as a multiple of estimated EBITDAX for the year ended December 31, 2022, or “2022E EBITDAX”;

Per share stock price as a multiple of estimated per share cash flow for the year ended December 31, 2021, or “2021E CFPS”; and

Per share stock price as a multiple of estimated per share cash flow for the year ended December 31, 2022, or “2022E CFPS”.

Parsley. The selected companies with respect to Parsley and corresponding financial data based on publicly available research analyst estimates were:

Enterprise Value /Stock Price /

Company Name

2021E EBITDAX2022E EBITDAX2021E CFPS2022E CFPS

Pioneer Natural Resources Company(1)

5.8x4.7x5.1x4.3x

Concho Resources Inc.(1)(2)

5.3x4.6x4.1x3.6x

Diamondback Energy, Inc.(1)

5.0x4.3x2.2x2.0x

Continental Resources, Inc.(3)

5.2x4.7x2.5x2.4x

OVINTIV Inc.(3)

4.2x3.9x1.2x1.1x

Cimarex Energy Company(3)

4.1x3.4x2.5x2.0x

Matador Resources Company(3)

4.8x4.3x1.8x1.6x

(1)

Selected pure-play Permian companies.

(2)

The multiples for Concho Resources Inc. were derived by reference to the closing share prices on October 13, 2020, the last day before market rumors were reported regarding a possible transaction involving ConocoPhillips and Concho Resources Inc.

(3)

Selected independent oil & gas companies.

Taking into account the results of the selected companies analysis, Credit Suisse applied multiple ranges of 4.5x to 5.5x to Parsley’s 2021E EBITDAX, 4.0x to 5.0x to Parsley’s 2022E EBITDAX, 3.5x to 4.5x to Parsley’s estimated cash flow from operations for the year ended December 31, 2021, and 3.0x to 4.0x to Parsley’s estimated cash flow from operations for the year ended December 31, 2022, in each case based on the Parsley Corporate Forecast – 9/22/20. The selected companies analysis indicated an implied reference range of $8.42 to $10.82 per share of Parsley Class A common stock.

Pioneer. The selected companies with respect to Pioneer and corresponding financial data based on publicly available research analyst estimates were:

Enterprise Value /Stock Price /

Company Name

2021E EBITDAX2022E EBITDAX2021E CFPS2022E CFPS

Concho Resources Inc.(1)(2)

5.3x4.6x4.1x3.6x

Diamondback Energy, Inc.(1)

5.0x4.3x2.2x2.0x

Parsley Energy, Inc. (1)(2)

5.4x4.4x3.3x2.7x

EOG Resources, Inc.(3)

4.5x3.7x4.0x3.4x

Continental Resources, Inc.(3)

5.2x4.7x2.5x2.4x

OVINTIV Inc.(3)

4.2x3.9x1.2x1.1x

(1)

Selected pure-play Permian companies.

(2)

The multiples for Concho Resources Inc. and Parsley were derived by reference to the closing share price on October 13, 2020, the last day before market rumors were reported regarding a possible transaction involving ConocoPhillips and Concho Resources Inc.

(3)

Selected independent oil & gas companies.

Taking into account the results of the selected companies analysis, Credit Suisse applied multiple ranges of 5.5x to 6.5x to Pioneer’s 2021E EBITDAX, 4.0x to 5.0x to Pioneer’s 2022E EBITDAX, 3.5x to 4.5x to Pioneer’s estimated cash flow from operations for the year ended December 31, 2021, and 3.0x to 4.0x to Pioneer’s estimated cash flow from operations for the year ended December 31, 2022, in each case based on Pioneer Corporate Forecast—9/22/20. The selected companies analysis indicated an implied reference range of $69.45 to $84.50 per share of Pioneer common stock.

This selected companies analysis based on the Parsley Corporate Forecast—9/22/20 and Pioneer Corporate Forecast—9/22/20 indicated an implied exchange ratio reference range of 0.0996 to 0.1558, as compared to the exchange ratio of 0.1252 in the mergers.

Discounted Cash Flow Analysis—Corporate

Parsley. Credit Suisse performed a discounted cash flow analysis with respect to Parsley by calculating the estimated net present value of the projected after-tax, unlevered, free cash flows of Parsley based on the Parsley Corporate Forecast—9/22/20. Credit Suisse applied terminal multiples of 4.75x—5.75x to Parsley’s estimated EBITDAX for year ended December 31, 2024 and discount rates ranging from 9.5% to 11.5% to the projected unlevered free cash flows and terminal value. The discounted cash flow analysis for Parsley indicated an implied reference range per share of the Parsley Class A common stock of $8.91 to $12.23. While the Parsley Corporate Forecast—10/15/20 was based on different oil price assumptions than the Parsley Corporate Forecast—9/22/20 and Pioneer Corporate Forecast—9/22/20, and consequently was not directly comparable to the Parsley Corporate Forecast—9/22/20 and Pioneer Corporate Forecast—9/22/20, Credit Suisse also performed for informational purposes a discounted cash flow analysis with respect to Parsley based on the Parsley Corporate Forecast—10/15/20 using the same terminal multiples and discount rates as described above, which indicated an implied reference range per share of Parsley Class A common stock of $8.80 and $12.09.

Pioneer. Credit Suisse performed a discounted cash flow analysis with respect to Pioneer by calculating the estimated net present value of the projected after-tax, unlevered, free cash flows of Pioneer based on Pioneer Corporate Forecast—9/22/20. Credit Suisse applied terminal multiples of 5.5x—6.5x to Pioneer’s estimated EBITDAX for year ended December 31, 2024 and discount rates ranging from 9.0% to 11.0% to the projected unlevered free cash flows and terminal value. The discounted cash flow analysis for Pioneer indicated implied reference range per share of Pioneer common stock of $90.65 to $113.14.

This discounted cash flow analysis for Parsley and Pioneer based on the Parsley Corporate Forecast—9/22/20 and Pioneer Corporate Forecast – 9/22/20, respectively, indicated an implied exchange ratio reference range of 0.0787 to 0.1349, as compared to the exchange ratio of 0.1252 in the mergers.

Discounted Cash Flow Analysis—Net Asset Value

Parsley. Credit Suisse performed a discounted cash flow analysis with respect to Parsley by calculating the estimated net present value of the projected after-tax, unlevered, free cash flows of Parsley based on the Parsley Reserves-Based Forecast—10/15/20 and the Parsley Reserves-Based Forecast—Alternate Pricing. Credit Suisse applied discount rates ranging from 9.5% to 11.5% to the projected unlevered free cash flows. This discounted cash flow analysis for Parsley indicated implied reference ranges per share of Parsley Class A common stock of $6.62 to $9.05 (Parsley Reserves-Based Forecast—10/15/20) and $8.97 to $11.98 (Parsley Reserves-Based Forecast – Alternate Pricing).

Pioneer. Credit Suisse performed a discounted cash flow analysis with respect to Pioneer by calculating the estimated net present value of the projected after-tax, unlevered, free cash flows of Pioneer based on Pioneer Reserves-Based Forecast—10/15/20 and Pioneer Reserves-Based Forecast—Alternate Pricing. Credit Suisse applied discount rates ranging from 9.0% to 11.0% to the projected unlevered free cash flows. This discounted cash flow analysis for Pioneer indicated implied reference ranges per share of Pioneer common stock of $66.04 to $81.62 (Pioneer Reserves-Based Forecast—10/15/20) and $78.77 to $97.59 (Pioneer Reserves-Based Forecast—Alternate Pricing).

This discounted cash flow analysis indicated implied exchange ratio reference range of 0.0810 to 0.1371 (Parsley Reserves-Based Forecast—10/15/20 and Pioneer Reserves-Based Forecast—10/15/20) and 0.0919 to 0.1521 (Parsley Reserves-Based Forecast—Alternate Pricing and Pioneer Reserves-Based Forecast—Alternate Pricing), as compared to the exchange ratio of 0.1252 in the mergers.

Selected Transactions Analysis

Credit Suisse also considered the financial terms of certain business combinations and other transactions that Credit Suisse deemed relevant. The selected transactions were selected because the target companies or assets were deemed by Credit Suisse to be similar to Parsley in one or more respects. The financial data reviewed included the implied transaction value as a multiple of EBITDAX for the latest twelve months, or LTM EBITDAX.

Date

Announced

Acquiror

Target

Transaction Value /
LTM EBITDAX

10/19/20

ConocoPhillips(1)(2)Concho Resources Inc.4.4x

09/28/20

Devon Energy Corporation(1)(2)WPX Energy, Inc.3.8x

08/12/20

Southwestern Energy Company(1)Montage Resources Corporation3.4x

07/20/20

Chevron Corporation(1)Noble Energy, Inc.5.1x

10/14/19

Parsley Energy, Inc.(1) (2)Jagged Peak Energy Inc.5.4x

08/26/19

PDC Energy, Inc. (1)SRC Energy Inc.3.1x

07/15/19

Callon Petroleum Company(1) (3)Carrizo Oil & Gas, Inc.3.8x

05/09/19

Occidental Petroleum Corporation(1) (2)Anadarko Petroleum Corporation7.5x

11/19/18

Cimarex Energy Co.(1) (2)Resolute Energy Corporation8.2x

11/01/18

Encana Corporation(1)Newfield Exploration Company5.3x

08/14/18

Diamondback Energy, Inc.(2)Energen Corporation10.3x

03/28/18

Concho Resources Inc.(2)RSP Permian Inc.16.2x

01/16/17

Noble Energy, Inc.(2)Clayton Williams Energy, Inc.NM(4)

05/11/15

Noble Energy, Inc.(2)Rosetta Resources Inc.6.0x

09/29/14

Encana Corporation(2)Athlon Energy Inc.25.1x

(1)

Selected recent transactions.

(2)

Selected transactions involving Permian-focused targets

(3)

Indicated multiple reflects amended merger agreement terms announced on November 14, 2019.

(4)

Not meaningful.

Taking into account the results of the selected transactions analysis, Credit Suisse applied a multiple range of 4.0x to 5.5x to Parsley’s LTM EBITDAX as of June 30, 2020. The selected transactions analysis indicated an implied reference range per share of Parsley Class A common stock of $7.22 to $10.82, as compared to a value of $10.90 per share of Parsley Class A common stock based on the value of the 0.1252 shares of Pioneer common stock to be issued in the mergers using the closing share price for Pioneer common stock on October 19, 2020.

Other Matters

Parsley retained Credit Suisse as its financial advisor in connection with the mergers based on Credit Suisse’s qualifications, experience and reputation as an internationally recognized investment banking and financial advisory firm. Pursuant to the engagement letter between Parsley and Credit Suisse, Parsley has agreed to pay Credit Suisse for its services a fee in an amount to be determined by reference to the aggregate value in connection with the mergers (estimated as of the date of this joint proxy statement/prospectus to be approximately $24 million), of which $3 million became payable to Credit Suisse upon the rendering of its opinion to the Parsley board and the balance of which is contingent upon the consummation of the first merger. In addition, Parsley has agreed to reimburse certain of Credit Suisse’s expenses and to indemnify Credit Suisse and certain related parties for certain liabilities and other items arising out of or related to its engagement.

Credit Suisse and its affiliates have in the past provided investment banking and other financial advice and services to Parsley and its affiliates for which advice and services Credit Suisse and its affiliates have received compensation, including among other things, during the past two years, having acted as an underwriter or initial purchaser in connection with an issuance of high yield debt securities by Parsley in 2020 for which Credit Suisse and its affiliates received aggregate fees of less than $1 million. Credit Suisse and its affiliates have in the past provided investment banking and other financial advice and services to Pioneer and its affiliates for which advice and services Credit Suisse and its affiliates have received compensation, including among other things, during the past two years, having acted as an underwriter or initial purchaser in connection with the issuance of debt securities in 2020, a counterparty in connection with the execution of a derivative transaction entered into in 2020 and an underwriter or initial purchaser in connection with an issuance of an equity convertible security in 2020 for which Credit Suisse and its affiliates received aggregate fees of approximately $10 million. Credit Suisse and its affiliates may in the future provide investment banking and other financial advice and services to Parsley, Pioneer and their respective affiliates for which advice and services Credit Suisse and its affiliates would expect to receive compensation. Credit Suisse is a full service securities firm engaged in securities trading and brokerage activities as well as providing investment banking and other financial advice and services. Credit Suisse and/or its affiliates are also participants and lenders under outstanding credit facilities of Parsley and Pioneer and/or certain of their respective affiliates. Credit Suisse or one of its affiliates has also extended a line of credit to the Executive Chairman of Parsley secured by a portion of his position in the Parsley Class A common stock and Parsley Class B common stock and the associated Parsley LLC units. In the ordinary course of business, Credit Suisse and its affiliates may acquire, hold or sell, for its and its affiliates’ own accounts and the accounts of customers, equity, debt and other securities and financial instruments (including bank loans and other obligations) of Parsley, Pioneer and any other company that may be involved in mergers, as well as provide investment banking and other financial advice and services to such companies and their affiliates.

Opinion of Wells Fargo Securities, LLC

Pursuant to an engagement letter dated October 18, 2020, Parsley retained Wells Fargo Securities as a financial advisor to the Parsley board in connection with a review of a potential transaction involving Parsley’s business, assets or equity interests, which would include a potential transaction with Pioneer.

On October 20, 2020, Wells Fargo Securities rendered its oral opinion to the Parsley board, which was subsequently confirmed in writing by delivery of Wells Fargo Securities’ written opinion dated the same date, that, as of October 20, 2020, the exchange ratio in the proposed mergers was fair, from a financial point of view, to the Parsley Class A stockholders and holders of Parsley LLC stapled units.

Wells Fargo Securities’ opinion was for the information and use of the Parsley board (in its capacity as such) in connection with its evaluation of the proposed mergers. Wells Fargo Securities’ opinion only addressed the fairness, from a financial point of view, of the exchange ratio in the proposed mergers to the Parsley Class A stockholders and holders of Parsley LLC stapled units and did not address any other aspect or implication of the proposed mergers. The summary of Wells Fargo Securities’ opinion in this joint proxy statement/prospectus is qualified in its entirety by reference to the full text of its written opinion, which is included as Annex E to this joint proxy statement/prospectus and sets forth the procedures followed, assumptions made, matters considered and limitations and qualifications on the review undertaken by EvercoreWells Fargo Securities in renderingconnection with the preparation of its opinion. The exchange ratio was determined through arm’s-length negotiations betweenHowever, neither Wells Fargo Securities’ written opinion nor the Pioneer Southwest Conflicts Committeesummary of its opinion and the related analyses set forth in this joint proxy statement/prospectus is intended to be, and they do not constitute, advice or a recommendation to the Parsley board or any Parsley Class A stockholder or holder of Parsley LLC stapled units as to how such holder should vote or act on any matter relating to the proposed mergers.

In arriving at its opinion, Wells Fargo Securities, among other things:

reviewed the merger agreement and the form of the voting agreements;

reviewed certain publicly available business and financial information relating to Parsley and Pioneer and the industries in which they operate;

compared the financial and operating performance of Parsley and Pioneer Southwest Conflicts Committee approvedwith publicly available information concerning certain other companies Wells Fargo Securities deemed relevant, and compared current and historic market prices of Parsley Class A common stock and Pioneer common stock with similar data for such other companies;

reviewed certain of the Parsley projections and the Pioneer projections prepared by the managements of Parsley and Pioneer;

reviewed certain estimates prepared by the management of Parsley as to the potential cost savings and synergies expected by such management to be achieved as a result of the proposed mergers (the “Parsley expected synergies”);

discussed with the management of Parsley regarding certain aspects of the proposed mergers, the business, financial condition and prospects of Parsley, the effect of the proposed mergers on the business, financial condition and prospects of Parsley, and certain other matters that Wells Fargo Securities deemed relevant; and

considered such other financial analyses and investigations and such other information that Wells Fargo Securities deemed relevant.

In giving its opinion, Wells Fargo Securities assumed and relied upon the accuracy and completeness of all information that was publicly available or was furnished to or discussed with Wells Fargo Securities by Parsley or Pioneer or otherwise reviewed by Wells Fargo Securities. Wells Fargo Securities did not independently verify any such information, and pursuant to the terms of Wells Fargo Securities’ engagement by Parsley, Wells Fargo Securities did not have any obligation to undertake any such independent verification. In relying on the Parsley projections and Pioneer projections (including the Parsley expected synergies), Wells Fargo Securities assumed that they were reasonably prepared on bases reflecting the best currently available estimates and judgments of management as to the future performance and financial condition of Parsley and Pioneer. Wells Fargo Securities expressed no view or opinion with respect to the Parsley projections, the Pioneer projections and the Parsley expected synergies or the assumptions upon which they are based. Wells Fargo Securities assumed that any representations and warranties made by Parsley and Pioneer in the merger agreement or in other agreements relating to the proposed mergers will be true and recommendedaccurate in all respects that are material to its analysis and that Parsley will have no exposure for indemnification pursuant to the merger agreement or such other agreements that would be material to its analysis. At Parsley’s direction, Wells Fargo Securities assumed for purposes of its

analyses and opinion that the Parsley Class A common stock and the Parsley LLC stapled units are equivalent in all respects.

Parsley and Pioneer do not publicly disclose internal management projections of the type provided to Wells Fargo Securities in connection with Wells Fargo Securities’ analysis of the proposed mergers, and the Parsley projections and Pioneer projections were not prepared with a view toward public disclosure. The Parsley projections and the Pioneer projections were based on numerous variables and assumptions that are inherently uncertain and may be beyond the control of management, including, without limitation, factors related to general economic and competitive conditions and prevailing interest rates. Accordingly, actual results could vary significantly from those set forth in the Parsley projections and the Pioneer projections. For more information regarding the use of the Parsley projections and the Pioneer projections, please refer to the sections titled “—Certain Parsley Unaudited Prospective Financial and Operating Information” and “—Certain Pioneer Southwest GP BoardUnaudited Prospective Financial and Operating Information.”

For purposes of Wells Fargo Securities’ analyses and opinion, Wells Fargo Securities assumed that, for approval. EvercoreU.S. federal income tax purposes, the integrated mergers will qualify as a “reorganization” within the meaning of Section 368(a) of the Code. Wells Fargo Securities also assumed that the proposed mergers will have the tax consequences described in discussions with, and materials provided adviceto Wells Fargo Securities by, Parsley and its representatives. Wells Fargo Securities also assumed that, in the course of obtaining any regulatory or third party consents, approvals or agreements in connection with the proposed mergers, no delay, limitation, restriction or condition will be imposed that would have an adverse effect on Parsley, Pioneer or the contemplated benefits of the proposed mergers. Wells Fargo Securities also assumed that the proposed mergers will be consummated in compliance with all applicable laws and regulations and in accordance with the terms of the merger agreement without waiver, modification or amendment of any term, condition or agreement thereof that is material to its analyses or opinion. In addition, Wells Fargo Securities did not make any independent evaluation, inspection or appraisal of the assets or liabilities (contingent or otherwise) of Parsley or Pioneer, nor was Wells Fargo Securities furnished with any such evaluations or appraisals. Wells Fargo Securities did not evaluate the solvency of Parsley or Pioneer under any state or federal laws relating to bankruptcy, insolvency or similar matters. Wells Fargo Securities further assumed that the final form of the merger agreement would conform to the Pioneer Southwest Conflicts Committee during these negotiations. Evercoreexecution copy reviewed by Wells Fargo Securities in all respects material to its analyses and opinion.

Wells Fargo Securities’ opinion only addressed the fairness, from a financial point of view, of the exchange ratio in the proposed mergers to the Parsley Class A stockholders and holders of Parsley LLC stapled units and Wells Fargo Securities expressed no opinion as to the fairness of any consideration paid in connection with the proposed mergers to the holders of any other class of securities, creditors or other constituencies of Parsley. Furthermore, Wells Fargo Securities expressed no opinion as to any other aspect or implication (financial or otherwise) of the proposed mergers, or any other agreement (including the tax receivable agreement), arrangement or understanding entered into in connection with the proposed mergers or otherwise, including, without limitation, the fairness of the amount or nature of, or any other aspect relating to, any compensation or consideration to be received by or otherwise payable to any officers, directors or employees of any party to the proposed mergers, or class of such persons, relative to the exchange ratio or otherwise (including the TRA termination payments). Furthermore, Wells Fargo Securities did not however, recommendexpress any specific merger considerationadvice or opinion regarding matters that require legal, regulatory, accounting, insurance, tax, environmental, executive compensation or other similar professional advice and has relied upon the assessments of Parsley and its advisors with respect to such advice.

Wells Fargo Securities’ opinion was necessarily based upon information made available to Wells Fargo Securities as of the date of its opinion and financial, economic, market and other conditions as they existed and could be evaluated on the date of its opinion. Wells Fargo Securities did not undertake, and is under no obligation, to update, revise, reaffirm or withdraw its opinion, or otherwise comment on or consider events occurring or coming to its attention after the date of its opinion. Wells Fargo Securities’ opinion did not address the relative merits of the proposed mergers as compared to any alternative transactions or strategies that might

have been available to Parsley, nor did it address the underlying business decision of the Parsley board or Parsley to proceed with or effect the proposed mergers. Wells Fargo Securities did not express any opinion as to the Pioneer Southwest Conflicts Committee, the Pioneer Southwest GP Boardprice at which Parsley Class A common stock or Pioneer Southwestcommon stock may be traded at any time.

Financial Analyses

In preparing its opinion to the Parsley board, Wells Fargo Securities performed a variety of analyses, including those described below. The summary of Wells Fargo Securities’ analyses is not a complete description of the analyses underlying Wells Fargo Securities’ opinion. The preparation of such an opinion is a complex process involving various quantitative and qualitative judgments and determinations with respect to the financial, comparative and other analytical methods employed and the adaptation and application of these methods to the unique facts and circumstances presented. As a consequence, neither Wells Fargo Securities’ opinion nor its underlying analyses is readily susceptible to summary description. Wells Fargo Securities arrived at its opinion based on the results of all analyses undertaken by it and assessed as a whole and did not draw, in isolation, conclusions from or recommendwith regard to any individual analysis, methodology or factor. Accordingly, Wells Fargo Securities believes that its analyses and the following summary must be considered as a whole and that selecting portions of its analyses, methodologies and factors, without considering all analyses, methodologies and factors or the narrative description of the analyses, could create a misleading or incomplete view of the processes underlying Wells Fargo Securities’ analyses and opinion.

In performing its analyses, Wells Fargo Securities considered general business, economic, industry and market conditions, financial and otherwise, and other matters as they existed on, and could be evaluated as of, the date of its opinion. None of the selected companies used in Wells Fargo Securities’ analyses is identical to Parsley or Pioneer and an evaluation of the results of those analyses is not entirely mathematical. The financial analyses performed by Wells Fargo Securities were performed for analytical purposes only and are not necessarily indicative of actual values or predictive of future results or values, which may be significantly more or less favorable than those suggested by the analyses. In addition, any specific merger consideration constitutedanalyses relating to the only appropriate consideration forvalue of assets, businesses or securities do not purport to be appraisals or to reflect the merger. Evercore’sprices at which businesses or securities actually may be sold, which may depend on a variety of factors, many of which are beyond the control of Parsley or Pioneer.

While the results of each analysis were taken into account in reaching its overall conclusion with respect to fairness, from a financial point of view, of the exchange ratio in the proposed mergers to the Parsley Class A stockholders and holders of Parsley LLC stapled units, Wells Fargo Securities did not make separate or quantifiable judgments regarding individual analyses. Much of the information used in, and accordingly the results of, Wells Fargo Securities’ analyses are inherently subject to substantial uncertainty.

Wells Fargo Securities’ opinion was only one of many factors considered by the Pioneer Southwest Conflicts CommitteeParsley board in evaluating the proposed mergers. Neither Wells Fargo Securities’ opinion nor its evaluationanalyses were determinative of the merger and should not be viewed as determinativeexchange ratio or of the views of the Pioneer Southwest Conflicts CommitteeParsley board or management with respect to the mergerproposed mergers or the exchange ratio. The type and amount of consideration payable in the proposed mergers were determined through negotiations between Parsley and Pioneer, and Parsley’s decision to enter into the merger agreement was solely that of the Parsley board.

UnderThe following is a summary of the terms of Evercore’s engagement lettermaterial financial analyses performed by Wells Fargo Securities in connection with the preparation of its opinion rendered to, and reviewed with, the Parsley board on October 20, 2020. The order of the analyses summarized below does not represent relative importance or weight given to those analyses by Wells Fargo Securities. The analyses summarized below include information presented in tabular format. The tables alone do not constitute a complete description of the analyses. Considering the data in the tables below without considering the full narrative description of the analyses, as well as the methodologies underlying, and the assumptions made, procedures followed, matters considered and limitations and qualifications affecting, each analysis, could create an incomplete view of Wells Fargo Securities’ analyses.

The estimates of the future financial performance of the selected companies listed below were based on certain publicly available research analyst estimates for those companies and the estimates of the future financial performance of Parsley and Pioneer Southwest Conflicts Committee,relied upon for the financial analyses described below were based on the Parsley projections and the Pioneer Southwestprojections, respectively.

Discounted Cash Flow Analysis

Wells Fargo Securities performed a discounted cash flow analysis for each of Parsley and Pioneer by calculating the estimated net present value of the projected unlevered free cash flows of each of Parsley and Pioneer for the six months ending December 31, 2020 and for the calendar years ending December 31, 2021 through December 31, 2024, based on the Parsley projections and the Pioneer projections, respectively.

For Parsley’s discounted cash flow analysis, Wells Fargo Securities applied terminal EBITDAX multiples of 4.75x to 5.75x and discount rates ranging from 7.75% to 9.25%. The discounted cash flow analysis indicated the following implied per share equity value reference range for Parsley Class A common stock and Parsley LLC stapled units:

   Implied per Share
Equity Value
 
   Low   High 

Discounted Cash Flow Analysis

  $9.88   $13.18 

For Pioneer’s discounted cash flow analysis, Wells Fargo Securities applied terminal EBITDAX multiples of 5.50x to 6.50x and discount rates ranging from 7.25% to 8.75%. The discounted cash flow analysis indicated the following implied per share equity value reference range for Pioneer common stock:

   Implied per Share
Equity Value
 
   Low   High 

Discounted Cash Flow Analysis

  $103.63   $127.52 

Selected Public Companies Analysis

Wells Fargo Securities reviewed certain data for selected companies with publicly traded equity securities that Wells Fargo Securities deemed relevant. None of the selected companies used in Wells Fargo Securities’ analyses is identical to Parsley or Pioneer. The selected companies were selected by Wells Fargo Securities because they are oil and gas exploration and production companies with operations in the Permian Basin and were deemed by Wells Fargo Securities to be similar to Parsley and Pioneer, respectively, in one or more respects, including, among other things, scale, leverage and commodity production mix.

The financial data reviewed for the selected companies included:

total enterprise value (“TEV”) (calculated as the equity value of the relevant company’s outstanding equity securities on a fully diluted basis, plus any debt, preferred equity and non-controlling interests, less cash and cash equivalents) as a multiple of estimated EBITDAX (earnings before interest, taxes, depreciation, amortization and exploration expense) for the calendar year ending December 31, 2021, or “2021E EBITDAX” for the selected companies and “2021P EBITDAX” for Parsley and Pioneer;

price per share, or “P”, as a multiple of estimated cash flows for the calendar year ending December 31, 2021, or “2021E CFPS” for the selected companies and “2021P CFPS” for Parsley and Pioneer; and

TEV as a multiple of estimated daily production for the calendar year ending December 31, 2021, or “2021E Production” for the selected companies and “2021P Production” for Parsley and Pioneer.

For Parsley, the selected companies and average, low and high of such financial data for the selected companies were:

Cimarex Energy Co.

Concho Resources Inc.

Devon Energy Corporation

Diamondback Energy, Inc.

Pioneer

   Average   Low   High 

TEV / 2021E EBITDAX

   5.0x    4.2x    6.3x 

P / 2021E CFPS

   3.4x    2.2x    5.4x 

TEV / 2021E Production

  $36,956   $20,026   $44,543 

Taking into account the results of the selected companies analysis, Wells Fargo Securities applied multiple ranges of 4.75x to 5.75x to Parsley’s 2021P EBITDAX, multiple ranges of 3.50x to 4.50x to Parsley’s 2021P CFPS and multiple ranges of $37,500 to $45,000 to Parsley’s 2021P Production. The selected companies analysis indicated the following implied per share equity value reference ranges for Parsley:

   Implied per Share
Equity Value
 
   Low   High 

2021P EBITDAX

  $6.98   $10.04 

2021P CFPS

  $9.43   $12.13 

2021P Production

  $8.45   $11.64 

For Pioneer, the selected companies and average, low and high of such financial data for the selected companies were:

Concho Resources Inc.

Devon Energy Corporation

Diamondback Energy, Inc.

EOG Resources, Inc.

Parsley

   Average   Low   High 

TEV / 2021E EBITDAX

   5.0x    4.2x    5.8x 

P / 2021E CFPS

   3.4x    2.2x    4.4x 

TEV / 2021E Production

  $38,488   $30,846   $43,112 

Taking into account the results of the selected companies analysis, Wells Fargo Securities applied multiple ranges of 5.50x to 6.50x to Pioneer’s 2021P EBITDAX, multiple ranges of 4.50x to 5.50x to Pioneer’s 2021P CFPS and multiple ranges of $42,000 to $46,000 to Pioneer’s 2021P Production. The selected companies analysis indicated the following implied per share equity value reference ranges for Pioneer:

   Implied per Share
Equity Value
 
   Low   High 

2021P EBITDAX

  $74.39   $91.03 

2021P CFPS

  $73.17   $89.43 

2021P Production

  $81.10   $90.46 

Exchange Ratio Analysis

Wells Fargo Securities then calculated the implied exchange ratios for Parsley by dividing the low end of each range of implied per share equity values of Parsley by the high end of each range of implied per share equity values of Pioneer and by dividing the high end of each range of implied per share equity values of Parsley by the low end of each range of implied per share equity values of Pioneer. The exchange ratio analysis indicated the following implied exchange ratio reference ranges for Parsley:

Implied Exchange
Ratio
LowHigh

Discounted Cash Flow Analysis

0.0775x0.1272x

Selected Public Companies Analysis

2021P EBITDAX

0.0767x0.1349x

2021P CFPS

0.1055x0.1657x

2021P Production

0.0934x0.1435x

The implied exchange ratio reference ranges were then compared to the proposed exchange ratio of 0.1252x.

Other Matters

Wells Fargo Securities is a trade name of Wells Fargo Securities, LLC, an investment banking subsidiary and affiliate of Wells Fargo & Company. Parsley retained Wells Fargo Securities as its financial advisor in connection with the proposed mergers based on Wells Fargo Securities’ experience and reputation. Wells Fargo Securities is regularly engaged to provide investment banking and financial advisory services in connection with mergers and acquisitions, financings, and financial restructurings. Parsley has agreed to pay Evercore aWells Fargo Securities an aggregate fee of $1,000,000 upon rendering its opinion. Evercore also received a fee of $500,000 upon execution of its engagement letter with the Pioneer Southwest Conflicts Committee, and Evercore willcurrently estimated to be entitled to receive a fee of $1,000,000,approximately $13 million, $3 million of which $500,000 represents an incentive fee, ifbecame payable to Wells Fargo Securities at the mergertime Wells Fargo Securities delivered its opinion, and the remainder of which is consummated.contingent and payable upon the consummation of the proposed mergers. In addition, Pioneer SouthwestParsley has agreed to reimburse EvercoreWells Fargo Securities for its reasonable out-of-pocketcertain expenses (including legal fees, expenses and disbursements) incurred in connection with its engagement and to indemnify EvercoreWells Fargo Securities and any of its members, officers, advisors, representatives, employees, agents, affiliates or controlling persons, if any,certain related parties against certain liabilities and expenses arisingother items that may arise out of or relate to Wells Fargo Securities’ engagement. The issuance of Wells Fargo Securities’ opinion was approved by an authorized committee of Wells Fargo Securities.

Wells Fargo Securities and its engagement,affiliates provide a wide range of investment and commercial banking advice and services, including financial advisory services, securities underwritings and placements, securities sales and trading, brokerage advice and services, and commercial loans. During the two years preceding the date of Wells Fargo Securities’ written opinion, Wells Fargo Securities and its affiliates had investment or to contribute to paymentscommercial banking relationships with Parsley and Pioneer, for which anyWells Fargo Securities and such affiliates received customary compensation. Such relationships have included acting as administrative agent, sole lead arranger and sole bookrunner on Parsley LLC’s credit facility agreement, which was most recently amended in October 2020, as lead bookrunner and co-lead arranger on Pioneer’s facility agreement in October 2018, as placement agent on Pioneer’s share repurchase in January 2020, as lead bookrunner and co-lead arranger on Pioneer’s facility agreement in April 2020, as joint bookrunner on an issuance of such persons might be required to make with respect to such liabilities.

Evercoredebt securities by Pioneer in May 2020, and as joint bookrunner on an issuance of debt securities by Pioneer in August 2020. During the two years preceding the date of Wells Fargo Securities’ written opinion, Wells Fargo Securities and its affiliates received aggregate fees of approximately $1.3 million from Parsley and approximately $3.2 million from Pioneer. Wells Fargo Securities or its affiliates may, inare also an agent and a lender to one or more of the credit facilities of Parsley and Pioneer. In addition, during the two years preceding the date of Wells Fargo Securities’ written opinion, Wells Fargo Securities and its affiliates had investment or commercial banking relationships with portfolio companies of affiliates of Quantum, which portfolio companies are not related to the proposed mergers. Wells Fargo Securities and its affiliates hold, on a proprietary basis, less than 1% of the issued and outstanding common stock of each of Parsley and Pioneer. In the ordinary course of business, activelyWells Fargo Securities and its affiliates may trade equity, debt or other securities, or related derivative

otherwise effect transactions in the securities or other financial instruments including(including bank loans andor other

obligations, obligations) of Parsley, Pioneer Southwest and Pioneer and/or any of their respective affiliates for theirits own account and for the accounts of theirits customers and, accordingly, may at any time hold a long or short position in such securities or financial instruments. DuringWells Fargo Securities and its affiliates have adopted policies and procedures designed to preserve the pastindependence of their research and credit analysts whose views may differ from those of the members of the team of investment banking professionals involved in preparing Wells Fargo Securities’ opinion.

Interests of Certain Parsley Directors and Executive Officers in the Mergers

In considering the recommendation of the Parsley board that stockholders vote “FOR” the Parsley merger proposal and the Parsley compensation proposal, Parsley stockholders should be aware that the executive officers and directors of Parsley have interests in the mergers that may be different from, or in addition to, those of Parsley stockholders generally.

These interests are described below, and certain of them are quantified in the narrative and tabular disclosure included under “—Quantification of Potential Payments and Benefits to Parsley’s Named Executive Officers.” The Parsley board was aware of and considered these interests, among other matters, in evaluating and negotiating the merger agreement and the mergers, in approving the merger agreement, and in recommending the Parsley merger proposal and Parsley compensation proposal.

Parsley Directors to Be Appointed to the Pioneer Board

Pursuant to the merger agreement, Pioneer and Parsley have agreed that the Pioneer board will be expanded by two years,members as of the effective time and Matt Gallagher and A.R. Alameddine will be appointed as directors of the Pioneer board. If either Mr. Gallagher and/or Mr. Alameddine is unwilling or unable to serve as a member of the Pioneer board at the effective time, then another member or members of the Parsley board that is determined by the Pioneer board in good faith to be independent with respect to his or her service on the Pioneer board and is mutually agreed between Pioneer and Parsley will instead be appointed to fill such vacancy or vacancies on the Pioneer board in lieu of Mr. Gallagher and/or Mr. Alameddine, as applicable. Any remuneration to be paid to these directors will be consistent with Pioneer’s remuneration policy for its directors. Pioneer has also agreed to take all action necessary to nominate the Parsley director designees for election to the Pioneer board in the proxy statement relating to the first annual meeting of Pioneer stockholders following the closing of the mergers. In addition, the Pioneer board (or a committee thereof) will appoint each Parsley director designee to a committee of the Pioneer board within 90 days following the closing date.

Taxable Status of Opco Merger for Parsley LLC Unitholders and Rights of Certain Parsley LLC Unitholders under the Tax Receivable Agreement

As described below under “Share Ownership of Directors, Executive Officers and Certain Beneficial Owners of Parsley,” as of November 13, 2020, Parsley’s directors and executive officers beneficially own in the aggregate 77,685,495 shares of Parsley Class A common stock and 23,275,078 Parsley LLC units (and a corresponding number of shares of Parsley Class B common stock). Such aggregate amounts do not include shares beneficially owned by Mr. Hinson, who is still a member of Parsley LLC but is no longer an executive officer of Parsley. As described under “The Merger Agreement—Terms of the Mergers; Merger Consideration,” pursuant to the merger agreement, all eligible shares of Parsley Class A common stock and eligible Parsley LLC units, including those held by Parsley’s directors and executive officers, will be converted in the mergers into the right to receive a number of shares of Pioneer common stock equal to the exchange ratio, and all shares of Parsley Class B common stock, including those held by Parsley’s directors and executive officers, will be cancelled for no additional consideration, subject to any statutory rights to appraisal pursuant to the DGCL solely with respect to the Parsley Class B common stock.

It is intended that the integrated mergers, taken together, will qualify as a tax-deferred “reorganization” within the meaning of Section 368(a) of the Code, and it is a condition to Parsley’s obligation to complete the

mergers that Parsley receive a customary tax opinion of counsel to that effect. As a result, Parsley Class A stockholders, including Parsley’s directors and executive officers with respect to their aggregate 77,685,495 shares of Parsley Class A common stock beneficially owned by them as of November 13, 2020, generally are not expected to recognize any gain (or loss) for U.S. federal income tax purposes as a result of the exchange of their shares of Parsley Class A common stock for Pioneer common stock pursuant to the merger agreement (except for any gain or loss that may result from the receipt by such holder of cash in lieu of fractional shares of Pioneer common stock). As a result of the integrated mergers, Parsley’s directors and executive officers in the aggregate are expected to receive, in exchange for the aggregate 77,685,495 shares of Parsley Class A common stock beneficially owned by them as of November 13, 2020, as merger consideration approximately 9,726,224 shares of Pioneer common stock, which would have an aggregate market value, based on the closing price of Pioneer common stock on November 13, 2020, of approximately $881.9 million.

In contrast, the Opco merger is intended to be treated with respect to the Parsley LLC unitholders, including Messrs. Sheffield, Gallagher, Dalton and Hinson, as a fully taxable sale by such holders of their Parsley LLC units in exchange for Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any) for U.S. federal income tax purposes. The Parsley LLC unitholders, including Messrs. Sheffield, Gallagher, Dalton and Hinson, are expected to recognize material relationship existedgain on the exchange of their Parsley LLC units for Pioneer common stock in such taxable sale. It is currently estimated that an aggregate of $88.8 million in cash taxes will be payable by Messrs. Sheffield, Gallagher, Dalton and Hinson with respect to the gain they recognize solely as a result of the taxable sale of their 24,562,688 Parsley LLC units pursuant to the merger agreement. The gain recognized by the Parsley LLC unitholders, including Messrs. Sheffield, Gallagher, Dalton and Hinson, will result in an increase in the tax basis of the assets of Parsley LLC.

In connection with its IPO in 2014, Parsley entered into the tax receivable agreement with the TRA holders, in which Parsley agreed to make specified future payments to the TRA holders relating to tax attributes generated to Parsley’s benefit in future taxable exchanges of Parsley LLC units by TRA holders. The tax receivable agreement generally provides for the payment by Parsley to each TRA holder of 85% of the net cash savings, if any, in U.S. federal, state and local income tax or franchise tax that Parsley actually realizes (or is deemed to realize in certain circumstances described below) in periods after the IPO as a result of certain increases in tax basis and certain benefits attributable to imputed interest associated with such taxable exchanges, with Parsley retaining the benefit of the remaining 15% of these cash savings. Under the terms of the tax receivable agreement, however, a change of control (as defined under the tax receivable agreement, which includes certain mergers and business combinations, including the first merger) will result in a lump-sum payment equal to the present value of hypothetical future payments that could be required to be paid under the tax receivable agreement (determined by applying a discount rate of one-year LIBOR plus 3%). It is currently estimated, based on an analysis conducted by Parsley’s third-party tax advisors consistent with the terms of the tax receivable agreement, that the TRA termination payments made to Messrs. Sheffield, Gallagher, Dalton, Hinson and their respective affiliates will be, in the aggregate, approximately $133.5 million, and that an aggregate of $31.8 million in cash taxes will be payable by such persons with respect to the TRA termination payments. The net amount remaining would be available to pay the estimated aggregate $88.8 million in cash taxes payable by Messrs. Sheffield, Gallagher, Dalton, Hinson and their respective affiliates solely as a result of the taxable sale of Parsley LLC units described above. Of the estimated TRA termination payments, it is currently estimated that approximately $115.5 million will be paid to Mr. Sheffield and his affiliates, approximately $5.6 million will be paid to Mr. Gallagher, approximately $4.5 million will be paid to Mr. Dalton and approximately $8.0 million will be paid to Mr. Hinson. The estimates of potential tax liabilities and TRA termination payments discussed above are based on certain assumptions, including with respect to the price of Pioneer common stock and the one-year LIBOR rate at the effective time, each Parsley LLC unitholder’s adjusted tax basis in its Parsley LLC units and the character of the gain or loss it recognizes, and the tax rates applicable to Parsley and the Parsley LLC unitholders, and the actual taxes owed by and TRA termination payments payable to Messrs. Sheffield, Gallagher, Dalton and Hinson could differ materially.

In connection with the execution and delivery of the merger agreement, Parsley, Messrs. Sheffield, Gallagher, Dalton and Hinson, and certain other parties to the tax receivable agreement entered into the TRA amendment, pursuant to which such parties agreed to terminate the tax receivable agreement, immediately after the effective time, on the terms set forth in the TRA amendment. In connection with the termination of the tax receivable agreement, Parsley will pay the TRA termination paymentsto the TRA holders, including Messrs. Sheffield, Gallagher, Dalton and Hinson, in an amount calculated in a manner consistent with the methodology specified in the TRA amendment, which methodology is consistent with Parsley’s historical methodology for calculating potential liabilities (including the estimated termination payment that would be due in connection with a change of control) under the tax receivable agreement reported in its filings with the SEC. In the event the merger agreement is terminated, the TRA amendment will no longer be of any force and effect.

The disparate tax treatment as between EvercoreParsley Class A stockholders and Parsley LLC unitholders, in each case as described above, and the rights under the tax receivable agreement results in additional transaction costs, but also additional payment rights, and other considerations for Messrs. Sheffield, Gallagher, Dalton and Hinson that differ in certain respects from other Parsley Class A stockholders.

Treatment of Parsley Equity Awards in the Mergers

The merger agreement provides for the treatment set forth below with respect to the awards held by Parsley’s non-employee directors and executive officers at the effective time. For additional information regarding treatment of awards held by Parsley’s executive officers upon a “qualifying termination” (as defined below) upon or following the mergers pursuant to Parsley employment agreements, see “—Change In Control Payments and Benefits” below. In the event the closing date does not occur prior to December 31, 2020, the Parsley compensation committee intends to accelerate to December 31, 2020, the vesting of the 2018 time-based restricted stock award held by Mr. Gallagher and the vesting of the 2018 time-based restricted stock unit award held by Mr. Dell’Osso that would otherwise vest in February and March of 2021, respectively, and the certification of performance attained with respect to the 2018 performance-based restricted stock award held by Mr. Gallagher.

Parsley Time-Based Restricted Stock Awards: Each unvested time-based restricted stock award held by a Parsley executive officer that is issued and outstanding as of immediately prior to the effective time will, at the effective time, be converted, on the same terms and conditions (including time-based vesting conditions) as were applicable to such time-based restricted stock award as of immediately prior to the effective time, into a time-based restricted stock award of Pioneer covering a number of shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio.

The following table sets forth, for each of Parsley’s executive officers, the aggregate number of shares of Parsley Class A common stock subject to unvested time-based restricted stock awards held by such executive officers as of November 13, 2020. Each such award is scheduled to vest in full on February 12, 2021, which may occur prior to the effective time. None of Parsley’s non-employee directors hold unvested restricted stock awards as of November 13, 2020.

Executive Officer Name

Number of Shares Subject to
Outstanding Parsley Time-Based Restricted
Stock Awards
(#)

Matt Gallagher

51,142

Bryan Sheffield

60,274

Ryan Dalton

33,790

David Dell’Osso

—  

Colin Roberts

20,091

Mike Hinson

10,959

Stephanie Reed

9,132

Parsley Time-Based Restricted Stock Unit Awards: Each unvested Parsley time-based restricted stock unit award held by a Parsley non-employee director that is issued and outstanding as of immediately prior to the effective time will, at the effective time, automatically, and without any action on the part of Pioneer, Parsley, or the holder thereof become fully vested and be converted into the right to receive a number of shares of Pioneer common stock (to be issued within 30 days following the closing date in accordance with the terms of the applicable restricted stock unit award agreement), rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio.

Each unvested time-based restricted stock unit award held by a Parsley executive officer that is issued and outstanding as of immediately prior to the effective time will at the effective time, be converted, on the same terms and conditions (including time-based vesting conditions) applicable to such unvested restricted stock unit award as of immediately prior to the effective time, into the right to receive a Pioneer time-based restricted stock unit award covering a number of shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award immediately prior to the effective time and (b) the exchange ratio.

The following table sets forth, for each Parsley non-employee director and executive officer, the aggregate number of shares of Parsley Class A common stock subject to restricted stock unit awards held by such non-employee directors and executive officers as of November 13, 2020. A portion of the time-based restricted stock unit award granted to Mr. Dell’Osso on October 9, 2018 covering 17,515 shares of Parsley Class A common stock is scheduled to vest on March 1, 2021, which may occur prior to the effective time.

Executive Officer and Non-Employee Director Name

Number of Shares Subject to
Outstanding Parsley Time-Based
Restricted
Stock Unit Awards
(#)

Matt Gallagher

250,605

Bryan Sheffield

—  

A.R. Alameddine

20,374

Ronald Brokmeyer

20,374

William Browning

20,374

Dr. Hemang Desai

20,374

Karen Hughes

20,374

James J. Kleckner

20,374

David H. Smith

20,374

S. Wil VanLoh, Jr.

20,374

Jerry Windlinger

20,374

Ryan Dalton

107,136

David Dell’Osso

158,009

Colin Roberts

68,214

Mike Hinson

27,770

Stephanie Reed

34,832

For the estimated values of the potential accelerated vesting of the time-based restricted stock awards and time-based restricted stock unit awards held by Parsley’s NEOs, see the “Equity” column of the table below under “—Quantification of Potential Payments and Benefits to Parsley’s Named Executive Officers.”As the Parsley time-based restricted stock awards and time-based restricted stock unit awards held by Parsley’s executive officers are being converted directly into awards based on Pioneer common stock and there is no acceleration of vesting solely upon consummation of the mergers, no monetary value is being received by Parsley’s executive officers in connection with the conversion of such time-based restricted stock awards and time-based restricted stock unit awards. However, pursuant to the Parsley employment agreements, the time-based restricted stock awards and time-based restricted

stock unit awards held by Parsley’s executive officers will vest in full upon a qualifying termination upon or following the mergers as described under “—Change in Control Payments and Benefits.”

Parsley Performance-Based Restricted Stock Awards and Performance-Based Restricted Stock Unit Awards: Each unvested performance-based restricted stock award and performance-based restricted stock unit award (collectively, “Parsley performance awards”) held by Parsley’s executive officers will become vested pursuant to the terms of the merger agreement based on deemed achievement of the maximum level of performance applicable to such Parsley performance award as of the date immediately prior to the effective time.

Each such performance-based restricted stock award that vests as a result of the mergers will, at the effective time, automatically, and without any action on the part of Pioneer, Parsley or the holder thereof, be converted into the right to receive a number of shares of Pioneer common stock equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of immediately prior to the effective time and (b) the exchange ratio. Each such performance-based restricted stock unit award held by Parsley executive officers that vests as a result of the mergers will, at the effective time, automatically, and without any action on the part of Pioneer, Parsley, or the holder thereof, be converted into the right to receive a number of shares of Pioneer common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award immediately prior to the effective time, and (b) the exchange ratio.

The following table sets forth, for each of Parsley’s executive officers, the aggregate number of unvested shares of Parsley Class A common stock subject to the Parsley performance awards based on the deemed achievement of maximum performance (200%), in each case, held by such executive officers as of November 13, 2020. Based on actual performance as of November 13, 2020, the maximum number (200%) of the performance-based restricted stock awards granted on February 12, 2018 to each of the executive officers except for Mr. Dell’Osso are expected to vest on December 31, 2020 in accordance with the terms of such awards, prior to the expected closing date, and not in connection with the mergers. Nevertheless, the 2018 performance-based restricted stock awards are included in the table below. None of Parsley’s non-employee directors hold any Parsley performance awards.

Executive Officer Name

Number of Shares Subject to
Outstanding Parsley Performance Awards
(Based on Maximum  Performance)
(#)

Matt Gallagher

603,494

Bryan Sheffield

120,548

Ryan Dalton

281,852

David Dell’Osso

280,988

Colin Roberts

176,610

Mike Hinson

77,458

Stephanie Reed

87,928

For the estimated values of the potential accelerated vesting of the Parsley performance awards held by Parsley’s NEOs, see the “Equity” column of the table below under “—Quantification of Potential Payments and Benefits to Parsley’s Named Executive Officers.”

Treatment of Parsley LLC Units in the Opco Merger

As discussed above, certain of Parsley’s executive officers hold Parsley LLC units (and a corresponding number of shares of Parsley Class B common stock). As described above under “—Taxable Status of Opco Merger for Parsley LLC Unitholdersand Rights of Certain Parsley LLC Unitholders under the Tax Receivable Agreement” and described under “The Merger Agreement—Terms of the Mergers; Merger Consideration,” pursuant to the merger agreement, at the effective time and without any action on the part of Pioneer, Parsley,

Parsley LLC or holders of any equity interests in the foregoing, each Parsley LLC unit held by a Parsley executive officer that is issued and outstanding immediately prior to the effective time will be converted into the right to receive a number of shares of Pioneer common stock equal to the exchange ratio, and the corresponding shares of Parsley Class B common stock will be cancelled for no additional consideration, subject to any statutory rights to appraisal pursuant to the DGCL solely with respect to the Parsley Class B common stock. The following table sets forth, for each of Parsley’s executive officers, the aggregate number of Parsley LLC units (and corresponding shares of Parsley Class B common stock) held or beneficially owned by such executive officers as of November 13, 2020.

Executive Officer Name

Number of Parsley LLC Units and
Corresponding Shares of Parsley Class B
Common Stock
(#)

Matt Gallagher

1,000,000

Bryan Sheffield

21,198,751

Ryan Dalton

1,076,327

David Dell’Osso

—  

Colin Roberts

—  

Mike Hinson

1,287,610

Stephanie Reed

—  

Change in Control Payments and Benefits

For purposes of the agreements described below, the completion of the mergers will constitute a “change in control” as defined within the applicable documents.

Parsley has entered into an employment agreement with each of its executive officers (as each may be amended from time to time, the “Parsley employment agreements”), pursuant to which the executive officers may become eligible to receive severance benefits upon a qualifying termination of employment following the mergers. Under the Parsley employment agreements, if an executive officer terminates his or her employment for “good reason” (as defined below) or if his or her employment is terminated by the surviving company without “cause” (as defined below) (each, a “qualifying termination” for purposes of the Parsley employment agreements), and not by reason of disability (as defined below) or death, and such termination occurs on, or during the 12-month (or, for Mr. Sheffield, 24-month) period following, the date on which the mergers occur, then such executive officer would be eligible to receive the following payments and/or benefits, subject to such executive officer’s timely execution and non-revocation of a full release of claims in favor of Parsley and its affiliates and subsidiaries no later than 60 days following the executive’s termination of employment and continued compliance with restrictive covenants, including non-competition, non-solicitation, non-disclosure, and assignment of invention agreements:

cash severance equal to (a) three in the case of Messrs. Gallagher and Sheffield, two and one-quarter in the case of Messrs. Dalton, Dell’Osso and Roberts, and two in the case of Mr. Hinson and Ms. Reed times (b) the sum of (i) the executive officer’s annualized base salary for the year in which the termination occurs plus (ii) an amount equal to the average of the executive officer’s annual cash incentive bonus actually paid for the three most recently completed calendar years prior to the executive officer’s termination of employment, except that Mr. Dell’Osso’s annual cash incentive bonus for 2018 will be calculated as if he received a non-prorated annual cash incentive bonus for such year (the “severance amount”);

reimbursement on a monthly basis for the difference between the amount the executive officer pays for continued coverage under Parsley’s group health plans pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985 (“COBRA”) and the employee contribution amount that active senior executive employees of Parsley pay for the same or similar coverage under such group health plans for up to 18 months;

outplacement services provided by a company of Parsley’s choosing for up to 12 months for Messrs. Gallagher and Sheffield and six months for Messrs. Dalton, Dell’Osso, Roberts and Hinson and Ms. Reed; and

accelerated vesting of all issued and outstanding unvested time-based equity awards.

The severance amount will be payable in a lump sum to each executive officer other than Mr. Sheffield. The portion of Mr. Sheffield’s severance amount that is equal to three times his annualized base salary shall be paid in 36 monthly installments following the termination date, and the portion of Mr. Sheffield’s severance amount that is equal to three times his average annual cash incentive bonus for the past three years shall be payable in a lump sum following the last such monthly installment. For purposes of the Parsley employment agreements:

cause” generally means, as determined by the Parsley board in good faith and its sole and absolute discretion, the executive officer’s (a) violation of Parsley’s substance abuse policy; (b) refusal or inability (other than by reason of death or disability) to perform the duties assigned to him or her; (c) acts or omissions evidencing a violation of his or her duties of loyalty and good faith; candor; fair and honest dealing; integrity; or full disclosure to Parsley, as well as any acts or omissions which constitute self-dealing; (d) willful disobedience of lawful orders, policies, regulations, or directives issued to him or her by Parsley, including policies related to sexual harassment, discrimination, computer use or the like; (e) conviction or commission of a felony, a crime of moral turpitude, or a crime that could reasonably be expected to impair the ability of the executive officer to perform his or her job duties; (f) breach of the Parsley employment agreement by each executive officer, or in the case of each executive officer other than Messrs. Sheffield and Hinson, any other agreement between Parsley and the executive officer; (g) revocation or suspension of any necessary license or certification; (h) generation of materially incorrect financial, geological, seismic or engineering projections, compilations or reports; or (i) a false statement by him to obtain his or her position;

disability” means, generally, the executive officer’s inability to perform the essential functions of his or her position, with reasonable accommodations, due to physical or mental impairment that continues, or can reasonably be expected to continue, for a period in excess of 90 days, whether or not consecutive, in any period of 365 days; and

good reason” means, generally, without the executive officer’s consent (a) a material diminution in the executive officer’s base compensation; (b) a material diminution in the executive officer’s authority, duties or responsibilities; or (c) any other action or inaction that constitutes a material breach by Parsley of the Parsley employment agreement. For Mr. Sheffield, “Good Reason” also includes the following, in each case, without his consent (x) a material diminution in the authority, duties, or responsibilities of the supervisor to whom Mr. Sheffield is required to report, including a requirement that he report to a corporate officer or employee instead of reporting directly to the Parsley board; or (y) a material diminution in the budget over which Mr. Sheffield retains authority. In order to have grounds for Good Reason, (i) the executive officer must provide written notice to Parsley of the occurrence of the circumstances giving rise to Good Reason within 60 days of such circumstances first arising, (ii) Parsley must not have cured such act or omission within 30 days of receiving such notice and (iii) the date of the executive officer’s termination must occur within 120 days after the first occurrence of such circumstances.

The Parsley employment agreements also provide that if any payments and benefits provided to the executive officers in connection with the consummation of the mergers would subject the executive officers to an excise tax under Section 4999 of the Code then the payments or benefits payable to the executive officers will be reduced (but not below zero) so that no portion of the payments or benefits received by the executive officers would be subject to the excise tax under Section 4999 of the Code if such reduction would result in a higher net after-tax benefit to the executive officers after taking into account any applicable excise tax under Section 4999 of the Code. Parsley does not expect that any portion of the payments and benefits provided to the executive officers in connection with the consummation of the mergers would subject the executive officers to an excise tax under Section 4999 of the Code or be subject to reduction pursuant to the Parsley employment agreements.

The Parsley compensation committee may pay 2020 annual cash incentive bonuses in accordance with the terms of Parsley’s short-term cash incentive program on or before December 31, 2020. Historically, bonuses have been paid in early to mid-February in the year following the calendar year to which the bonus relates. In the event that the closing date occurs in 2021, the Parsley compensation committee may pay its executive officers prorated annual cash incentive bonuses for the period of time between January 1, 2021 and the closing date, provided that such executive officers remain employed by Parsley through, and based on actual performance as of, such date. These amounts have not been included in the “Cash” column of the table below under “—Quantification of Potential Payments and Benefits to Parsley’sNamed Executive Officers” because it is assumed for purposes of such table that the closing date occurred on November 13, 2020, the latest practicable date.

The following table sets forth, for each of Parsley’s executive officers, the cash severance amounts (inclusive of the estimated cost of COBRA reimbursement and outplacement services) that would be payable upon a qualifying termination in connection with the mergers on November 13, 2020.

Name

Total
($)

Matt Gallagher

5,068,495

Bryan Sheffield

4,537,580

Ryan Dalton

2,387,701

David Dell’Osso

2,374,184

Colin Roberts

2,017,816

Mike Hinson

1,325,599

Stephanie Reed

1,268,979

Quantification of Potential Payments and Benefits to Parsley’s Named Executive Officers

The information set forth below is required by Item 402(t) of Regulation S-K regarding compensation that is based on or otherwise relates to the mergers that the NEOs could receive in connection with the mergers. Such amounts have been calculated assuming that (a) the mergers closed on the latest practicable date of November 13, 2020, (b) the value per share of Parsley Class A common stock on the completion of the mergers is $10.36 (which, in accordance with SEC requirements, is calculated by multiplying the exchange ratio by $82.71, the average closing price of a share of Pioneer Southwestcommon stock over the first five business days following the first public announcement of the mergers), (c) each NEO experiences a qualifying termination immediately following the completion of the mergers (making all payments and benefits below attributable to a “double-trigger” arrangement, except for accelerated vesting of Parsley performance awards, which are subject to “single-trigger” vesting pursuant to the terms of the merger agreement), and (d) each NEO has properly executed any required releases and complied with all requirements (including any applicable restrictive covenants) necessary in order to receive all payments and benefits. Some of the assumptions used in the table below are based upon information not currently available and, as a result, the actual amounts to be received by any of the NEOs below may materially differ from the amounts set forth below. The payments and benefits described below are calculated based on, to the extent applicable, each NEO’s existing Parsley employment agreement and equity arrangements with Parsley and may include certain payments or benefits that are contingent upon services to be provided by such NEO to Parsley, but only as set forth under the terms and conditions of our arrangements with the NEOs. Accordingly, see “—Change in Control Payments and Benefits” above, for a description of the change in control payments and treatment of the NEOs’ equity awards.

The actual amounts payable to Parsley’s NEOs will depend on whether the NEO experiences a qualifying termination, the date of such termination (if any) and the terms of the plans or agreements in effect at such time, and accordingly may differ materially from the amounts set forth below. In addition, while the information set forth below assumes the mergers occur on November 13, 2020 as required by SEC rules, the mergers are not expected to close until 2021. As a result, certain time-based and performance-based equity awards held by the

NEOs are expected to vest in accordance with their terms and Parsley employees, including the NEOs, are expected to receive payment of their 2020 annual bonuses under the Parsley short-term incentive program with respect to 2020 performance, which, for the NEOs, is assumed to be at the maximum performance level resulting in payments equal to 200% of the applicable target amount, in each case, prior to the closing of the mergers. In an effort to comply with the SEC rules, such time-based and performance-based equity awards are included in the table below because, pursuant to the terms of the Parsley employment agreements and the merger agreement, such awards would single-trigger vest or otherwise vest in connection with a qualifying termination prior to settlement of such awards. However, Parsley’s NEOs are not entitled to receive payment of their 2020 annual bonuses if a qualifying termination occurs prior to the date of payment of such bonuses; therefore, 2020 annual bonus amounts are not included in the table below.

Change in Control Compensation

Name

  Cash
($)(1)
   Equity
($)(2)
   Perquisites/
Benefits
($)(3)
   Total
($)
 

Matt Gallagher

   5,024,760    9,378,299    43,735    14,446,794 

Ryan Dalton

   2,351,966    4,379,981    35,735    6,767,682 

David Dell’Osso

   2,340,323    4,548,010    33,861    6,922,194 

Colin Roberts

   1,982,081    2,744,522    35,753    4,762,356 

Mike Hinson

   1,291,738    1,203,700    33,861    2,529,299 

(1)

These amounts reflect the cash severance amounts payable under the Parsley employment agreements with each of Messrs. Gallagher, Dalton, Dell’Osso, Roberts and Hinson described under “—Change in Control Payments and Benefits”. Details of the cash payments are shown in the following supplemental table:

Name

  Salary
($)(a)
   Average
Bonus
($)(b)
   Total
($)
 

Matt Gallagher

   2,475,000    2,549,760    5,024,760 

Ryan Dalton

   1,125,000    1,226,966    2,351,966 

David Dell’Osso

   1,147,500    1,192,823    2,340,323 

Colin Roberts

   933,750    1,048,331    1,982,081 

Mike Hinson

   710,000    581,738    1,291,738 

(a)

Three times Mr. Gallagher’s annualized base salary, two and one-quarter times Messrs. Dalton’s, Dell’Osso’s and Roberts’ annualized base salary and two times Mr. Hinson’s annualized base salary, in each case, for the year in which their respective terminations occurred, presumed for purposes of these disclosures to be 2020.

(b)

Three times Mr. Gallagher’s average annual bonus, two and one-quarter times Messrs. Dalton’s, Dell’Osso’s and Roberts’ average annual bonus, and two times Mr. Hinson’s average annual bonus, in each case, for the three years (or for Mr. Dell’Osso, two years) preceding such NEO’s termination, presumed for purposes of these disclosures to be in 2020.

(2)

These amounts reflect the value of time-based and performance-based restricted stock units and restricted stock, as described under “—Treatment of Parsley Equity Awards in the Mergersand “—Change inControl Payments and Benefits”. The Parsley performance awards held by the NEOs will vest immediately upon the mergers (and such vesting is therefore pursuant to a “single-trigger” arrangement) based on maximum performance levels and each NEO’s time-based restricted stock awards and time-based restricted stock unit awards will vest in connection with certain terminations of employment upon or following the mergers pursuant to the Parsley employment agreements. The amount is based on a per share value of Parsley Class A common stock of $10.36, which value represents the product of the exchange ratio multiplied by $82.71, the average closing price of a share of Pioneer common stock over the first five

business days following the first public announcement of the mergers. Details of the equity award payments are shown in the following supplemental table:

Name

  Time-Based
Restricted
Stock
Awards($)(a)
   Restricted
Stock Unit
Awards

($)(b)
   Performance-
Based
Restricted
Stock
Awards($)(c)
   Performance-
Based
Restricted
Stock Unit
Awards

($)(d)
   Total
($)
 

Matt Gallagher

   529,832    2,596,268    1,059,663    5,192,536    9,378,299 

Ryan Dalton

   350,065    1,109,929    700,129    2,219,858    4,379,981 

David Dell’Osso

   —      1,636,974    —      2,911,036    4,548,010 

Colin Roberts

   208,143    706,698    416,286    1,413,395    2,744,522 

Mike Hinson

   113,536    287,698    227,071    575,395    1,203,700 

(a)

Amounts reflect the number of shares of Parsley Class A common stock subject to time-based restricted stock awards accelerated in connection with a qualifying termination on or following the mergers (51,142 for Mr. Gallagher, 33,790 for Mr. Dalton, zero for Mr. Dell’Osso, 20,091 for Mr. Roberts and 10,959 for Mr. Hinson) multiplied by $10.36. The awards reflected in this column are scheduled to vest in full on February 12, 2021 and, as a result, may vest in the ordinary course prior to the effective time.

(b)

Amounts reflect the number of shares of Parsley Class A common stock subject to time-based restricted stock unit awards accelerated in connection with a qualifying termination on or following the mergers (250,605 for Mr. Gallagher, 107,136 for Mr. Dalton, 158,009 for Mr. Dell’Osso, 68,214 for Mr. Roberts and 27,770 for Mr. Hinson) multiplied by $10.36. A portion of the time-based restricted stock unit award granted to Mr. Dell’Osso on October 9, 2018 covering 17,515 shares is scheduled to vest on March 1, 2021 and, as a result, such shares may vest in the ordinary course prior to the effective time.

(c)

Amounts reflect the maximum number of shares of Parsley Class A common stock subject to performance-based restricted stock awards granted in 2018 to each of the NEOs other than Mr. Dell’Osso (102,284 for Mr. Gallagher, 67,580 for Mr. Dalton, 40,182 for Mr. Roberts and 21,918 for Mr. Hinson) multiplied by $10.36. For purposes of this table, Parsley assumed that the maximum number of shares subject to such performance-based restricted stock awards would become vested on November 13, 2020, but these awards will be earned as of December 31, 2020 based on actual performance, which is anticipated to be at maximum performance levels as of the latest practicable date, and will vest in the ordinary course of business rather than in connection with the mergers. Such performance-based restricted stock awards have been included in this table out of an abundance of caution in an effort to comply with SEC rules.

(d)

Amounts reflect the maximum number of shares of Parsley Class A common stock subject to performance-based restricted stock unit awards granted in 2019 and 2020 to each of the NEOs that will become vested pursuant to the merger agreement (501,210 for Mr. Gallagher, 214,272 for Mr. Dalton, 280,988 for Mr. Dell’Osso, 136,428 for Mr. Roberts and 55,540 for Mr. Hinson) multiplied by $10.36.

(3)

These amounts reflect benefits that are part of severance under the Parsley employment agreements described under “—Change in Control Payments and Benefits”, which include six (or 12 for Mr. Gallagher) months of outplacement services and reimbursement of a portion of the COBRA premiums paid by the NEO for 18 months (presuming that such NEO remains eligible for COBRA during the full 18-month period following his termination). The amounts reported are based on the COBRA premiums and NEO benefits elections in effect as of November 13, 2020, which are assumed for purposes of this table to remain the same throughout the applicable benefit reimbursement period.

Share Ownership

As described under “Share Ownership of Directors, Executive Officers and Certain Beneficial Owners of Parsley” and “The Merger Agreement—Terms of the Mergers; Merger Consideration”, executive officers and non-employee directors of Parsley beneficially own shares of Parsley Class A common stock and Parsley LLC units, which will be entitled to receive the merger consideration in respect of each share of Parsley Class A common stock and Parsley LLC units beneficially owned by them.

Sheffield Voting Agreement

In connection with the execution of the merger agreement, Mr. Sheffield entered into the Sheffield voting agreement with respect to the Sheffield voting agreement shares, wherein Mr. Sheffield agreed to vote all of the Sheffield voting agreement shares (i) in favor of the adoption of the merger agreement and the approval of any other matters necessary for consummation of the transactions contemplated by the merger agreement, including the mergers, subject to certain exceptions, and (ii) against specified actions that could reasonably be expected to impede, interfere with, delay, discourage, postpone or adversely affect the mergers, including specified actions that contemplate alternative transactions. Under the Sheffield voting agreement, Mr. Sheffield has granted to Pioneer an irrevocable proxy to vote the Sheffield voting agreement shares as provided above. Subject to certain exceptions, the Sheffield voting agreement restricts Mr. Sheffield from transferring Parsley common stock or Parsley LLC units until the earlier of the termination of the Sheffield voting agreement and the effective time. As of the Parsley record date, Mr. Sheffield beneficially owns and is entitled to vote in the aggregate approximately [__]% of the combined voting power of issued and outstanding shares of Parsley common stock entitled to vote at the Parsley special meeting. In addition, the Sheffield voting agreement contains a lock-up agreement providing that Mr. Sheffield may not, without Pioneer’s prior written consent, subject to limited exceptions, offer, sell, transfer or otherwise dispose of more than 15% of the shares of Pioneer common stock issued to Mr. Sheffield pursuant to the terms of the merger agreement for a period of 90 days following the closing date, or more than 30% of such shares for a period of 180 days following the closing date. For more information, please see the section titled “Parsley Special Meeting—Voting and Support Agreement with Bryan Sheffield.”

Family Relationship

Bryan Sheffield, Parsley’s Executive Chairman and Chairman of the Parsley board, is the son of Scott Sheffield, Pioneer’s President and Chief Executive Officer.

Indemnification and Insurance

Pioneer has agreed to cause the surviving company to take all action reasonably necessary to ensure that all rights to indemnification, exculpation and expense advancement and reimbursement existing in favor of any current or former director or officer of Parsley or any of its subsidiaries (collectively, the “indemnified persons”) for acts or omissions occurring prior to the effective time, as provided in any indemnification agreements with such indemnified persons and in Parsley’s organizational documents or Parsley LLC’s organizational documents as in effect on the date of the merger agreement, shall be assumed and performed by the surviving company following the mergers (and Pioneer shall fully guarantee the performance and payment thereof by the surviving company), and shall continue in full force and effect until the expiration of the applicable statute of limitations with respect to any claims against such indemnified persons arising out of such acts or omissions, except as otherwise required by applicable law. Pioneer agreed to amend the organizational documents of the surviving company as necessary to ensure that such indemnification and exculpation rights are assumed and performed by the surviving company.

Pioneer and the surviving company will cause to be put in place, and Pioneer will fully prepay prior to the effective time, “tail” insurance policies with a claims reporting or discovery period of at least six years from the effective time (the “tail period”) from an insurance carrier with the same or better credit rating as Parsley’s

current insurance carrier with respect to directors’ and officers’ liability insurance in an amount and scope at least as favorable as Parsley’s existing policies with respect to matters, acts or omissions existing or occurring at, prior to, or after the effective time, subject to a cap on the aggregate cost of such policies during the tail period equal to 300% of the current aggregate annual premium paid by Parsley for such purpose.

In the event Pioneer or the surviving company, or any of their respective affiliates pursuantsuccessors or assigns, is not the surviving entity in a merger or consolidation or transfers all or substantially all of its assets to which compensation was receiveda third party, Pioneer will ensure that these indemnification and insurance obligations are assumed by Evercorethe surviving entity or its affiliatespurchaser in such transaction, as applicable.

Share Ownership of Directors, Executive Officers and Certain Beneficial Owners of Parsley

To Parsley’s knowledge, the following table sets forth certain information regarding the beneficial ownership of shares of Parsley common stock as of the close of business on November 13, 2020 (except as noted in the footnotes below) and with respect to: (i) each person known by Parsley to beneficially own five percent or more of the issued and outstanding shares of Parsley common stock; (ii) each member of the Parsley board; (iii) each of Parsley’s NEOs; and (iv) the members of the Parsley board and Parsley’s current executive officers as a resultgroup. Except as described below, none of such a relationship. Evercorethe securities beneficially owned as set forth below is pledged as security.

  Shares Beneficially Owned by
Certain Beneficial Owners and Management(1)
 
  Class A Common Stock  Class B Common Stock  Combined Voting Power(2) 
  Number  % of class  Number  % of class  Number  % of class 

5% Stockholders

      

The Vanguard Group(3)

  24,347,755   6.4  —     —     24,347,755   5.9

TIAA-CREF Investment Management, LLC(4)

  13,632,221   3.6  —     —     13,632,221   3.3

Teachers Advisors, LLC(4)

  3,669,601   1.0  —     —     3,669,601   * 

Nuveen Asset Management, LLC(4)

  2,174,094   *   —     —     2,174,094   * 

Post Oak Veritas, LLC(5)

  —        7,973,117   22.7  7,973,117   1.9

Q-Jagged Peak Energy Investment Partners, LLC(6)

  65,416,239   17.3  —     —     65,416,239   15.8

Pioneer Natural Resources Company(7)

  75,545,798   20.0  21,198,751   62.0  96,744,549   23.4

Directors and Named Executive Officers:

      

Bryan Sheffield(8)

  10,129,559   2.7  21,198,751   62.0  31,328,310   7.6

Matt Gallagher(9)

  768,530   *   1,000,000   2.9  1,768,530   * 

Ryan Dalton(10)

  378,473   *   1,076,327   3.1  1,454,800   * 

David Dell’Osso(11)

  39,749   *   —     —     39,749   * 

Colin Roberts(12)

  251,455   *   —     —     251,455   * 

Mike Hinson(13)

  411,056   *   1,287,610   3.8  1,698,666   * 

A.R. Alameddine(14)

  140,834   *   —     —     140,834   * 

Ronald Brokmeyer(15)

  39,421   *   —     —     39,421   * 

William Browning(16)

  27,082   *   —     —     27,082   * 

Dr. Hemang Desai(17)

  43,283   *   —     —     43,283   * 

Karen Hughes(18)

  18,755   *   —     —     18,755   * 

James J. Kleckner(19)

  234,023   *   —     —     234,023   * 

David H. Smith(20)

  52,398   *   —     —     52,398   * 

S. Wil VanLoh, Jr.(6)

  65,416,239   17.3  —     —     65,416,239   15.8

Jerry Windlinger(21)

  35,000   *   —     —     35,000   * 

Directors and executive officers as a group (15 persons)

  77,685,495   20.5  23,275,078   68.1  100,960,573   24.4

*

Less than 1.0%.

(1)

Subject to the terms of the Parsley LLC agreement, Parsley LLC unitholders (other than Parsley) generally have the right to exchange all or a portion of their Parsley LLC units (together with a corresponding number of shares of Parsley Class B common stock) for Parsley Class A common stock at an exchange ratio of one share of Parsley Class A common stock for each Parsley LLC unit (and corresponding share of Parsley Class B common stock) exchanged. See “The Mergers—Interests of Certain Parsley Directors and Executive Officers in the Mergers.” Pursuant to Rule 13d-3 under the Exchange Act, a person has beneficial

ownership of a security as to which that person, directly or indirectly, through any contract, arrangement, understanding, relationship, or otherwise has or shares voting power and/or investment power of such security and as to which that person has the right to acquire beneficial ownership of such security within 60 days. Parsley has the option to deliver cash in lieu of shares of Parsley Class A common stock upon exercise by a Parsley LLC unitholder of its exchange right. As a result, beneficial ownership of Parsley Class B common stock and Parsley LLC units is not reflected as beneficial ownership of shares of Parsley Class A common stock for which such units and stock may be exchanged.
(2)

Represents the percentage of voting power of Parsley Class A common stock and Parsley Class B common stock voting together as a single class. Parsley LLC unitholders (other than Parsley) hold one share of Parsley Class B common stock for each Parsley LLC unit that they own. Each share of Parsley Class B common stock has no economic rights, but entitles the holder thereof to one vote for each share of Parsley Class B common stock held by such holder. Accordingly, the Parsley Class B stockholders (which are also Parsley LLC unitholders) collectively have the number of votes equal to the number of shares of Parsley Class B common stock that they hold.

(3)

Vanguard Fiduciary Trust Company, a wholly owned subsidiary of The Vanguard Group, Inc. (“The Vanguard Group”), is the beneficial owner of 115,344 shares of Parsley Class A common stock as a result of its serving as investment manager of collective trust accounts. Vanguard Investments Australia, Ltd., a wholly owned subsidiary of The Vanguard Group, is the beneficial owner of 85,489 shares of Parsley Class A common stock as a result of its serving as investment manager of Australian investment offerings. The Vanguard Group has the (i) sole power to vote or direct the vote of 155,002 shares of Parsley Class A common stock, (ii) shared power to vote or direct the vote of 45,831 shares of Parsley Class A common stock, (iii) sole power to dispose of or to direct the disposition of 24,186,580 shares of Parsley Class A common stock and (iv) shared power to dispose of or to direct the disposition of 161,175 shares of Parsley Class A common stock. This information is based solely on a Schedule 13G/A filed by The Vanguard Group with the SEC on February 12, 2020. The address of The Vanguard Group is 100 Vanguard Blvd., Malvern, PA 19355.

(4)

TIAA-CREF Investment Management, LLC (“Investment Management”) is the investment adviser to the College Retirement Equities Fund (“CREF”), a registered investment company, and may be deemed to be a beneficial owner of 13,632,221 shares of Parsley Class A common stock owned by CREF. Teachers Advisors, LLC (“Advisors”) is the investment adviser to three registered investment companies, TIAA-CREF Funds (“Funds”), TIAA-CREF Life Funds (“Life Funds”), and TIAA Separate Account VA-1 (“VA-1”), as well as one or more separately managed accounts of Advisors (collectively, the “Separate Accounts”), and may be deemed to be a beneficial owner of 3,669,601 shares of Parsley Class A common stock owned separately by Funds, Life Funds, VA-1, and/or the Separate Accounts. Nuveen Asset Management, LLC (“NAM”) is a registered investment adviser affiliated with Investment Management and Advisors. NAM may be deemed to be a beneficial owner of 2,174,094 shares of Parsley Class A common stock. This information is based solely on a Schedule 13G/A filed by Investment Management, Advisors and NAM with the SEC on February 14, 2020. The business address of each of Investment Management and Advisors is 730 Third Avenue New York, NY 10017. The business address of NAM is 333 W. Wacker Drive, Chicago, IL 60606.

(5)

Represents shares of outstanding Parsley Class B common stock directly owned, and shares of Parsley Class A common stock beneficially owned as issuable upon the exchange of a corresponding number of Parsley LLC units and shares of Parsley Class B common stock. Post Oak Veritas, LLC is managed by Post Oak Energy Capital, LP, which is managed by its general partner, Post Oak Energy Holdings, LLC. Accordingly, Post Oak Energy Holdings, LLC may be deemed to be a beneficial owner of such Parsley Class B common stock. The address of Post Oak Energy Holdings, LLC is 34 S. Wynden, Suite 300, Houston, Texas 77056.

(6)

QEM V, LLC (“QEM V”) is the managing member of Quantum. Therefore, QEM V may be deemed to share voting and dispositive power over the securities held by Quantum and may also be deemed to be the beneficial owner of these securities. QEM V disclaims beneficial ownership of such securities in excess of its pecuniary interest in the securities. Any decision taken by QEM V to vote, or to direct to vote, and to dispose, or to direct the disposition of, the securities held by Quantum has to be approved by a majority of

the members of its investment committee, which majority must include S. Wil VanLoh, Jr. (“Mr. VanLoh”). Therefore, Mr. VanLoh may be deemed to share voting and dispositive power over the securities held by Quantum and may also be deemed to be the beneficial owner of these securities. Mr. VanLoh disclaims beneficial ownership of such securities in excess of his pecuniary interest in the securities. Mr. VanLoh also holds 20,374 unvested time-based restricted stock units which are not reflected in the table. Mr. VanLoh holds these restricted stock units for the benefit of Quantum. Mr. VanLoh disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein. The principal business address of Quantum is 800 Capitol Street, Suite 3600, Houston, Texas 77002.
(7)

Consists of (i) 65,416,239 shares of Parsley Class A common stock held by Quantum and (ii) (x) 10,129,559 shares of Parsley Class A common stock beneficially held by Mr. Sheffield and (y) 21,198,751 shares of Parsley Class B common stock beneficially held by Mr. Sheffield.

(8)

Consists of (i) 8,350,412 shares of Parsley Class A common stock and 19,515,517 shares of Parsley Class B common stock held by Mr. Sheffield of which 8,192,037 shares of Class A common stock and 15,213,784 shares of Class B common stock are pledged to secure a bank loan, (ii) 352,521 shares of Parsley Class A common stock and 371,249 shares of Parsley Class B common stock held by Mr. Sheffield’s spouse, (iii) 948,043 shares of Parsley Class A common stock and 998,406 shares of Parsley Class B common stock held by the Bryan S. Sheffield Spousal Lifetime Access Trust, for which Mr. Sheffield serves as the investment trustee, (iv) 297,761 shares of Parsley Class A common stock and 313,579 shares of Parsley Class B common stock held by the Sharoll M. Sheffield 2012 Irrevocable Trust, for which Mr. Sheffield’s spouse serves as the investment trustee, and (v) for purposes of voting power only, (A) 120,548 performance-based restricted shares of Parsley Class A common stock and (B) 60,274 time-based restricted shares of Parsley Class A common stock.

(9)

Consists of (i) 615,104 shares of Parsley Class A common stock and 1,000,000 shares of Parsley Class B common stock and (ii) for purposes of voting power only, (A)102,284 performance-based restricted shares of Parsley Class A common stock and (B) 51,142 time-based restricted shares of Parsley Class A common stock. Mr. Gallagher also holds (I) 250,605 unvested time-based restricted stock units and (II) 250,605 unvested performance-based restricted stock units (granted at target performance levels) which are not reflected in the table.

(10)

Consists of (i) 277,103 shares of Parsley Class A common stock and 1,076,327 shares of Parsley Class B common stock and (ii) for purposes of voting power only, (A) 67,580 performance-based restricted shares of Parsley Class A common stock and (B) 33,790 time-based restricted shares of Parsley Class A common stock. Mr. Dalton also holds (I) 107,136 unvested time-based restricted stock units and (II) 107,136 unvested performance-based restricted stock units (granted at target performance levels) which are not reflected in the table.

(11)

Mr. Dell’Osso also holds (i) 158,009 unvested time-based restricted stock units and (ii) 140,494 unvested performance-based restricted stock units (granted at target performance levels) which are not reflected in the table.

(12)

Consists of (i) 191,182 shares of Parsley Class A common stock and (ii) for purposes of voting power only, (A) 40,182 performance-based restricted shares of Parsley Class A common stock and (B) 20,091 time-based restricted shares of Parsley Class A common stock. Mr. Roberts also holds (I) 68,214 unvested time-based restricted stock units and (II) 68,214 unvested performance-based restricted stock units (granted at target performance levels) which are not reflected in the table.

(13)

Consists of (i) 378,179 shares of Parsley Class A common stock and (ii) for purposes of voting power only, (A) 21,918 performance-based restricted shares of Parsley Class A common stock and (B) 10,959 time-based restricted shares of Parsley Class A common stock. Mr. Hinson, who is no longer an executive officer of Parsley, also holds (I) 27,770 unvested time-based restricted stock units and (II) 27,770 unvested performance-based restricted stock units (granted at target performance levels) which are not reflected in the table.

(14)

Mr. Alameddine also holds (i) 20,374 unvested time-based restricted stock units and (ii) 4,191 vested time-based restricted stock units for which Mr. Alameddine elected to defer payment, neither of which are reflected in the table.

(15)

Shares of Parsley Class A common stock held by the Ronald and Denise Brokmeyer Revocable Trust, of which Mr. Brokmeyer and his wife are trustees. Mr. Brokmeyer also holds 20,374 unvested time-based restricted stock units which are not reflected in the table.

(16)

Mr. Browning also holds 20,374 unvested time-based restricted stock units which are not reflected in the table.

(17)

Consists of (i) 40,268 shares of Parsley Class A common stock held by Mr. Desai and (ii) 3,015 shares of Parsley Class A common stock held by The Desai Family Living Trust, of which Dr. Desai and his wife are trustees. Dr. Desai also holds 20,374 unvested time-based restricted stock units which are not reflected in the table.

(18)

Ms. Hughes also holds 20,374 unvested time-based restricted stock units which are not reflected in the table.

(19)

Mr. Kleckner also holds 20,374 unvested time-based restricted stock units which are not reflected in the table.

(20)

Mr. Smith also holds 20,374 unvested time-based restricted stock units which are not reflected in the table.

(21)

Mr. Windlinger also holds 20,374 unvested time-based restricted stock units which are not reflected in the table.

Board of Directors and Management of Pioneer Following Completion of the Mergers

Upon completion of the mergers, the current directors and executive officers of Pioneer are expected to continue in their current positions, other than for changes previously announced by Pioneer or as may provide financial or other services to Pioneer Southwest andbe publicly announced by Pioneer in the future in the normal course.

Additionally, pursuant to the merger agreement, Pioneer and Parsley have agreed that the Pioneer board will be expanded by two members as of the effective time and Matt Gallagher and A.R. Alameddine will be appointed as directors of the Pioneer board. If either Mr. Gallagher and/or Mr. Alameddine is unwilling or unable to serve as a member of the Pioneer board at the effective time, then another member or members of the Parsley board that is determined by the Pioneer board in connectiongood faith to be independent with respect to his or her service on the Pioneer board and is mutually agreed between Pioneer and Parsley will instead be appointed to fill such vacancy or vacancies on the Pioneer board in lieu of Mr. Gallagher and/or Mr. Alameddine, as applicable. Any remuneration to be paid to these directors will be consistent with Pioneer’s remuneration policy for its directors. Pioneer has also agreed to take all action necessary to nominate the Parsley director designees for election to the Pioneer board in the proxy statement relating to the first annual meeting of Pioneer stockholders following the closing of the mergers. In addition, the Pioneer board (or a committee thereof) will appoint each Parsley director designee to a committee of the Pioneer board within 90 days following the closing date, in a manner consistent with its ordinary policies and practices.

Material U.S. Federal Income Tax Consequences

The following is a general discussion of the material U.S. federal income tax consequences of (i) the integrated mergers to U.S. holders (as defined below) of Parsley Class A common stock who exchange their eligible shares of Parsley Class A common stock for shares of Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any) pursuant to the integrated mergers and (ii) the Opco merger to U.S. holders of Parsley LLC units who exchange their eligible Parsley LLC units for shares of Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any) pursuant to the Opco merger. The following discussion is based on the Code, U.S. Treasury regulations promulgated thereunder, judicial interpretations thereof and published rulings and other positions of the IRS, each as in effect as of the date hereof, and all of which are subject to change or differing interpretations, possibly with retroactive effect. Any such change or differing interpretation could affect the accuracy of the statements and conclusions set forth herein.

This discussion is limited to U.S. holders that hold their Parsley Class A common stock or Parsley LLC units, as applicable, as a “capital asset” within the meaning of Section 1221 of the Code (generally, property held

for investment). This discussion is not a complete description of all of the U.S. federal income tax consequences of the mergers, nor does it describe any tax consequences of the mergers arising under the laws of any state, local, or non-U.S. jurisdiction or under any U.S. federal laws other than those pertaining to the income tax or the tax consequences of owning or disposing of Pioneer common stock received in the mergers. Further, this discussion does not address all aspects of U.S. federal income taxation that may be relevant to particular U.S. holders of Parsley Class A common stock or U.S. holders of Parsley LLC units, as applicable, in light of their individual circumstances (including the impact of the Medicare surtax on certain net investment income) or to U.S. holders of Parsley Class A common stock or U.S. holders of Parsley LLC units, as applicable, that are subject to special treatment under the U.S. federal income tax laws, such servicesas:

banks, insurance companies or other financial institutions;

partnerships or other pass-through entities for U.S. federal income tax purposes or holders of interests therein;

tax-exempt or governmental organizations;

dealers in securities or traders in securities that elect to use a mark-to-market method of accounting;

persons that hold Parsley Class A common stock or Parsley LLC units, as applicable, as part of a straddle, hedge, conversion transaction or other integrated investment or risk reduction transaction;

persons that purchased or sell their shares of Parsley Class A common stock or Parsley LLC units, as applicable, as part of a wash sale;

certain former citizens or long-term residents of the United States or persons whose functional currency is other than the U.S. dollar;

persons that are not U.S. holders;

persons who acquired their Parsley Class A common stock or Parsley LLC units, as applicable, through the exercise of employee stock options or otherwise as compensation or through a tax-qualified retirement plan; and

persons who actually or constructively hold (or actually or constructively held at any time during the five-year period ending on the date of the mergers) 5% or more of the shares of Parsley Class A common stock or the Parsley LLC units, as applicable.

THE TAX CONSEQUENCES OF THE MERGERS TO A PARSLEY CLASS A STOCKHOLDER OR PARSLEY LLC UNITHOLDER, AS APPLICABLE, MAY BE COMPLEX AND WILL DEPEND ON SUCH HOLDER’S SPECIFIC SITUATION AND FACTORS NOT WITHIN PIONEER’S OR PARSLEY’S CONTROL. ALL PARSLEY CLASS A STOCKHOLDERS AND PARSLEY LLC UNITHOLDERS SHOULD CONSULT THEIR TAX ADVISORS AS TO THE SPECIFIC TAX CONSEQUENCES OF THE MERGERS TO THEM IN THEIR PARTICULAR CIRCUMSTANCES, INCLUDING THE APPLICABILITY AND EFFECT OF THE ALTERNATIVE MINIMUM TAX AND ANY U.S. FEDERAL, U.S. STATE OR LOCAL, NON-U.S. OR OTHER TAX LAWS AND OF POTENTIAL CHANGES IN SUCH LAWS.

U.S. Holder Defined

For purposes of this discussion, a “U.S. holder” is a beneficial owner of Parsley Class A common stock or Parsley LLC units, as applicable, that, for U.S. federal income tax purposes, is:

an individual who is a citizen or resident of the United States;

a corporation (or other entity treated as a corporation for U.S. federal income tax purposes), created or organized in or under the laws of the United States, any state thereof or the District of Columbia;

an estate the income of which is subject to U.S. federal income tax regardless of its source; or

a trust (i) the administration of which is subject to the primary supervision of a U.S. court and which has one or more “United States persons” (within the meaning of Section 7701(a)(30) of the Code) who have the authority to control all substantial decisions of the trust or (ii) which has made a valid election under applicable U.S. Treasury regulations to be treated as a United States person.

If a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes) holds Parsley Class A common stock or Parsley LLC units, as applicable, the tax treatment of a partner in the partnership generally will depend upon the status of the partner, the activities of the partnership and certain determinations made at the partner level. Accordingly, if you are a partner in a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes) that holds Parsley Class A common stock or Parsley LLC units, as applicable, you should consult your tax advisor regarding the tax consequences to you of the integrated mergers or the Opco merger, as applicable.

Treatment of the Integrated Mergers

Assuming that the integrated mergers are completed as currently contemplated, Pioneer and Parsley intend for the integrated mergers, taken together, to qualify as a “reorganization” within the meaning of Section 368(a) of the Code. It is a condition to Parsley’s obligation to complete the mergers that it receive an opinion from Vinson & Elkins, counsel to Parsley, or another nationally recognized law firm reasonably satisfactory to Parsley, dated as of the closing date, to the effect that the integrated mergers, taken together, will qualify as a “reorganization” within the meaning of Section 368(a) of the Code. This condition is waivable, and Pioneer and Parsley undertake to recirculate this joint proxy statement/prospectus or circulate a supplement to this joint proxy statement/prospectus and resolicit stockholders if this condition is waived and the change in tax consequences is material. The opinion described above will be based on representations from each of Pioneer and Parsley and on customary factual assumptions, as well as certain covenants and undertakings by Pioneer and Parsley. If any of such representations, assumptions, covenants or undertakings is or becomes incorrect, incomplete or inaccurate or is violated, the validity of the opinion described above may receive compensation. Evercore hasbe affected and the U.S. federal income tax consequences of the integrated mergers could differ materially from those described below. In addition, the opinion will not provided any services to Pioneerbe binding on the IRS or any court. Pioneer and Parsley have not requested, and do not intend to request, any ruling from the IRS with respect to the tax consequences of the integrated mergers. There can be no assurance that the IRS will not assert, or that a court would not sustain, a position contrary to any of the conclusions set forth below. The following discussion, as it relates to the U.S. holders of Parsley Class A common stock, assumes the integrated mergers, taken together, will qualify as a “reorganization” within the meaning of Section 368(a) of the Code for U.S. federal income tax purposes.

Treatment of the Opco Merger

The exchange of Parsley LLC units for shares of Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any) in the Opco merger is intended to be a taxable event for U.S. holders of Parsley LLC units for U.S. federal income tax purposes. In general, the Opco merger is expected to be treated as a taxable sale of a U.S. holder’s Parsley LLC units in exchange for shares of Pioneer common stock (and any cash received in lieu of fractional shares of Pioneer common stock). U.S. holders of Parsley LLC units who receive TRA termination payments are also expected to be treated, for U.S. federal income tax purposes, as receiving in such taxable sale any portion of the TRA termination payments that the parties to the TRA amendment have agreed to treat as additional consideration payable to such holder for the Parsley LLC units exchanged in the Opco merger. The following discussion, as it relates to Parsley LLC unitholders, assumes that the Opco merger will be treated as a taxable event for U.S. holders of Parsley LLC units.

U.S. Federal Income Tax Consequences of the Integrated Mergers to U.S. Holders of Parsley Class A Common Stock

Assuming that the integrated mergers, taken together, are treated as described above in “—Treatment of the Integrated Mergers”, the material U.S. federal income tax consequences of the integrated mergers to U.S. holders of Parsley Class A common stock will be as follows:

a U.S. holder of Parsley Class A common stock generally will not recognize any gain or loss for U.S. federal income tax purposes upon the exchange of eligible shares of Parsley Class A common stock for shares of Pioneer common stock pursuant to the integrated mergers, except with respect to any cash received in lieu of fractional shares of Pioneer common stock (as discussed below);

the aggregate tax basis of the shares of Pioneer common stock received by a U.S. holder of Parsley Class A common stock in the integrated mergers (including any fractional share of Pioneer common stock deemed received and exchanged for cash, as discussed below) will equal the aggregate adjusted tax basis of such U.S. holder’s eligible shares of Parsley Class A common stock exchanged for such Pioneer common stock; and

the holding period of a U.S. holder of Parsley Class A common stock in the Pioneer common stock received in exchange for eligible shares of Parsley Class A common stock (including any fractional share of Pioneer common stock deemed received and exchanged for cash, as discussed below) will include the holding period of the Parsley Class A common stock exchanged for such Pioneer common stock.

If a U.S. holder of Parsley Class A common stock acquired different blocks of Parsley Class A common stock at different times or at different prices, such U.S. holder’s basis and holding period in its affiliatesshares of Pioneer common stock may be determined separately with reference to each block of Parsley Class A common stock. Any such U.S. holder should consult its tax advisor regarding the tax bases and holding periods of the particular shares of Pioneer common stock received in the integrated mergers.

A U.S. holder of Parsley Class A common stock who receives cash in lieu of fractional shares of Pioneer common stock generally will be treated as having received such fractional share pursuant to the integrated mergers and then as having sold such fractional share of Pioneer common stock for cash. As a result, such U.S. holder of Parsley Class A common stock generally will recognize gain or loss equal to the difference between the amount of cash received and the portion of the U.S. holder’s aggregate adjusted tax basis in its Parsley Class A common stock surrendered that is allocated to such fractional share of Pioneer common stock. Such gain or loss generally will be capital gain or loss, and will be long-term capital gain or loss if the U.S. holder’s holding period in the fractional share of Pioneer common stock deemed to be received exceeds one year at the effective time of the first merger. The deductibility of capital losses is subject to limitation.

PARSLEY CLASS A STOCKHOLDERS ARE STRONGLY URGED TO CONSULT WITH THEIR OWN TAX ADVISORS ABOUT THE SPECIFIC TAX CONSEQUENCES OF THE INTEGRATED MERGERS TO THEM IN THEIR PARTICULAR CIRCUMSTANCES, INCLUDING THE APPLICABILITY AND EFFECT OF ANY U.S. FEDERAL, U.S. STATE OR LOCAL NON-U.S. OR OTHER TAX LAWS AND OF POTENTIAL CHANGES IN SUCH LAWS.

U.S. Federal Income Tax Consequences of the Opco Merger to U.S. Holders of Parsley LLC Units

Assuming that the Opco merger is treated as described above in “—Treatment of the Opco Merger”, a U.S. holder of Parsley LLC units who receives Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any) in exchange for Parsley LLC units pursuant to the Opco merger will recognize gain or loss in an amount equal to the difference between (i) the sum of (A) the fair market value of the Pioneer common stock received, (B) any cash received (including any cash in lieu of fractional shares of Pioneer common stock and any portion of the TRA termination payments that the parties to the TRA amendment have agreed to treat as

additional consideration payable to such holder for the Parsley LLC units exchanged in the Opco merger) and (C) such U.S. holder’s share of Parsley LLC’s nonrecourse liabilities immediately prior to the Opco merger and (ii) such U.S. holder’s adjusted tax basis in the Parsley LLC units exchanged therefor (which will include such U.S. holder’s share of Parsley LLC’s nonrecourse liabilities immediately prior to the Opco merger).

Such gain or loss will generally be capital gain or loss. However, a portion of such gain or loss, which portion could be substantial, will be separately computed and taxed as ordinary income or loss under Section 751 of the Code to the extent attributable to assets giving rise to depreciation recapture or other “unrealized receivables” or to “inventory items” owned by Parsley LLC and its subsidiaries. Ordinary income attributable to unrealized receivables (including depreciation recapture) and inventory items may exceed any net taxable gain realized by a U.S. holder of Parsley LLC units in connection with the Opco merger and may be recognized even if there is a net taxable loss realized by such U.S. holder in connection with the Opco merger. Consequently, a U.S. holder may recognize both ordinary income and capital loss upon the exchange of Parsley LLC units in connection with the Opco merger. Capital gain or loss recognized by a U.S. holder of Parsley LLC units will generally be long-term capital gain or loss if the U.S. holder’s holding period for its Parsley LLC units is more than one year as of the effective time of the Opco merger. Long-term capital gains of certain non-corporate holders, including individuals, are generally subject to U.S. federal income tax at reduced rates. The deductibility of capital losses is subject to limitation.

U.S. holders of Parsley LLC units will be allocated their share of Parsley LLC’s items of income, gain, loss, and deduction for the taxable year of Parsley LLC ending on the date of the Opco merger. These allocations will be made in accordance with the terms of the Parsley LLC partnership agreement. A U.S. holder will be subject to U.S. federal income tax on any such allocated income and gain even if such U.S. holder does not receive a cash distribution from Parsley LLC attributable to such allocated income and gain. Any such income and gain allocated to a U.S. holder will increase the U.S. holder’s tax basis in its Parsley LLC units and, therefore, will reduce the gain, or increase the loss, recognized by such U.S. holder in connection with the Opco merger. Any losses or deductions allocated to a U.S. holder will decrease the U.S. holder’s tax basis in its Parsley LLC units and, therefore, will increase the gain, or reduce the loss, recognized by such U.S. holder in connection with the Opco merger.

A U.S. holder’s tax basis in the Pioneer common stock received in the Opco merger will equal the fair market value of such Pioneer common stock on the date of the Opco merger. A U.S. holder’s holding period in the Pioneer common stock received in the Opco merger will begin on the day after the date of the Opco merger.

PARSLEY LLC UNITHOLDERS ARE STRONGLY URGED TO CONSULT WITH THEIR OWN TAX ADVISORS ABOUT THE SPECIFIC TAX CONSEQUENCES OF THE OPCO MERGER TO THEM IN THEIR PARTICULAR CIRCUMSTANCES, INCLUDING THE APPLICABILITY AND EFFECT OF ANY U.S. FEDERAL, U.S. STATE OR LOCAL NON-U.S. OR OTHER TAX LAWS AND OF POTENTIAL CHANGES IN SUCH LAWS.

Information Reporting and Backup Withholding

Information returns may be required to be filed with the IRS in connection with the mergers. Further, the consideration payable to U.S. holders in connection with the mergers may be subject to deduction or withholding as required under applicable law. A U.S. holder of Parsley Class A common stock may be subject to U.S. backup withholding on any cash payments made pursuant to the mergers unless such holder provides proof of an applicable exemption or a correct taxpayer identification number and otherwise complies with the applicable requirements of the backup withholding rules. Moreover, the transferee of an interest in a partnership that is engaged in a U.S. trade or business (such as Parsley LLC) is generally required to withhold 10% of the amount realized by the transferor (in this case the Parsley LLC unitholder) unless the transferee certifies that it is not a foreign person. Because the “amount realized” includes a partner’s share of the partnership’s liabilities, 10% of the amount realized could exceed the total cash consideration received by a Parsley LLC unitholder in connection

with the mergers. Any amounts withheld under the U.S. backup withholding rules or otherwise is not an additional tax and will generally be allowed as a refund or credit against the U.S. holder’s U.S. federal income tax liability, if any, provided that the U.S. holder timely furnishes the required information to the IRS.

THE PRECEDING DISCUSSION IS INTENDED ONLY AS A SUMMARY OF THE MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES OF THE MERGERS. IT IS NOT A COMPLETE ANALYSIS OR DISCUSSION OF ALL POTENTIAL TAX EFFECTS THAT MAY BE IMPORTANT TO A PARTICULAR U.S. HOLDER. ALL PARSLEY CLASS A STOCKHOLDERS AND PARSLEY LLC UNITHOLDERS ARE STRONGLY ENCOURAGED TO CONSULT THEIR TAX ADVISORS AS TO THE SPECIFIC TAX CONSEQUENCES OF THE MERGERS TO THEM, INCLUDING TAX REPORTING REQUIREMENTS AND THE APPLICABILITY AND EFFECT OF ANY U.S. FEDERAL, U.S. STATE OR LOCAL, NON-U.S. OR OTHER TAX LAWS AND OF POTENTIAL CHANGES IN SUCH LAWS.

No Appraisal RightsAccounting Treatment of the Mergers

Pioneer Southwest unitholders do not have appraisal rights underprepares its financial statements in accordance with GAAP. The mergers will be accounted for as a business combination, using the acquisition method of accounting with Pioneer Southwest’s partnership agreement,being considered the acquirer of Parsley for accounting purposes. This means that Pioneer will record all assets acquired and liabilities assumed from Parsley at their acquisition date fair values at the effective date of the mergers.

Regulatory Approvals

Antitrust Clearance

The completion of the mergers is subject to antitrust review in the United States. Under the HSR Act, and the rules promulgated thereunder, the mergers cannot be completed until the parties to the merger agreement or Delaware or other applicable law.

Antitrusthave given notification and Regulatory Matters

No antitrust or other regulatory clearances are required as a conditionfurnished information to the FTC and the DOJ, and until the applicable waiting period has expired or has been terminated.

On November 12, 2020, Pioneer and Parsley received notice of early termination of the applicable waiting period under the HSR Act.

At any time before or after consummation of the merger.

Listingmergers, notwithstanding the early termination of the applicable waiting period under the HSR Act, the FTC, the DOJ or any state could take such action under antitrust laws as it deems necessary or desirable in the public interest, including seeking to enjoin the completion of the mergers or seeking the divestiture of substantial assets of Pioneer Common Stockor Parsley or their respective subsidiaries. Private parties may also seek to take legal action under antitrust laws under certain circumstances.

Securities and Exchange Commission

In connection with the Pioneer stock issuance proposal, Pioneer has filed a registration statement on Form S-4, of which this joint proxy statement/prospectus is a part, with the SEC under the Securities Act that must be Issued indeclared effective by the Merger; DelistingSEC and Deregistrationpursuant to which the issuance of shares of Pioneer Southwest Common Unitscommon stock issuable upon the effective time will be registered with the SEC.

New York Stock Exchange

Pioneer expectsIn addition, the completion of the mergers is subject to obtain approval to list on the NYSEfor listing of the shares of Pioneer common stock to be issued in the mergers and reserved for issuance in connection with the mergers on the NYSE, subject to official notice of issuance.

Exchange of Shares

For information on the exchange of Parsley Class A common stock and Parsley LLC units for the merger consideration (and on the corresponding cancellation of Parsley Class B common stock for no additional consideration), please see the section titled “The Merger Agreement—Exchange and Payment Procedures.”

Treatment of Indebtedness

The indentures governing the Parsley notes require Parsley LLC to make an offer to repurchase the Parsley notes at the change of control purchase price, within 30 days of the occurrence of a change of control transaction. A “change of control” transaction, as defined under the Parsley notes indentures, occurs when, among other things, a transaction is consummated and, as a result, any person (other than certain legacy holders) becomes the beneficial owner of more than 50% of Parsley LLC’s voting stock. In the case of the 5.875% senior notes due 2026 and 4.125% senior notes due 2028, however, such transaction is not a “change of control” transaction unless it is followed by a ratings decline within 90 days or 60 days, respectively.

Under each of the indentures governing the 5.375% senior notes due 2025, 5.250% senior notes due 2025, and 5.625% senior notes due 2027, the completion of the mergers is anticipated to constitute a change of control and, as a result, Parsley LLC will be required to make an offer to each holder of such Parsley notes to purchase all or any part of that holder’s notes at the change of control purchase price. If the mergers are followed by a ratings decline (as described in the applicable indenture, within 90 days for the 5.875% senior notes due 2026 or within 60 days for the 4.125% senior notes due 2028), a “change of control” may be deemed to have occurred for those notes as well.

In addition, the completion of the transaction will constitute a change of control under the Parsley revolving credit facility. As a result, at the direction of the lenders holding a majority of the outstanding loans under the Parsley revolving credit facility, the commitments under the Parsley revolving credit facility may be terminated and the outstanding balance under the Parsley revolving credit facility may be accelerated and become due and payable by Parsley LLC in connection with the completion of the mergers.

As of September 30, 2020, Parsley had outstanding $305 million of borrowings and $7 million of letters of credit under the Parsley revolving credit facility. The amount of indebtedness under the Parsley revolving credit facility at the effective time may be significantly more or less than the above listed amounts. In connection with the consummation of the mergers, Pioneer will fully repay the outstanding borrowings and terminate all outstanding commitments under the Parsley credit facility.

As of September 30, 2020, Parsley had outstanding $650.0 million aggregate principal amount of 5.375% senior notes due 2025, $448.0 million aggregate principal amount of 5.250% senior notes due 2025, $494.6 million aggregate principal amount of 5.875% senior notes due 2026, $700.0 million aggregate principal amount of 5.625% senior notes due 2027 and $399.5 million aggregate principal amount of 4.125% senior notes due 2028.

For a description of Parsley’s existing indebtedness, see Parsley’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2020, which is incorporated by reference into this joint proxy statement/prospectus. Please see “Where You Can Find More Information” for additional information.

Dividend Policy

Pioneer has historically paid dividends on Pioneer common stock, and the Pioneer board has authority to declare dividends to the holders of Pioneer common stock. The declaration and payment of future dividends, however, will be at the discretion of the Pioneer board and will depend on, among other things, Pioneer’s earnings, financial condition, capital requirements, level of indebtedness, statutory and contractual restrictions applying to the payment of dividends and other considerations that the Pioneer board deems relevant.

Subject to limited exceptions, the merger agreement generally prohibits Pioneer (unless consented to in advance by Parsley, which consent may not be unreasonably withheld, conditioned, or delayed) and any subsidiary of Pioneer from declaring, setting aside or paying dividends or making any other distributions to its stockholders until the earlier of the effective time and the termination of the merger agreement in accordance with its terms, except for (i) quarterly cash dividends on shares of Pioneer common stock not to exceed $0.55 per share, with customary record and payment dates, and (ii) dividends by a wholly-owned subsidiary of Pioneer to its parent or parents.

Parsley has historically paid dividends on Parsley Class A common stock, but any future dividends will be at the discretion of the Parsley board. Any future cash dividends to Parsley Class A stockholders and cash distributions to Parsley LLC unitholders would depend on its financial condition, results of operations, contractual restrictions, capital requirements, business prospects, and other factors determined by the Parsley board. Covenants contained in Parsley’s credit agreements and indentures restrict, under certain circumstances, the ability of Parsley to pay dividends and make other distributions in respect of Parsley Class A common stock.

Subject to limited exceptions, the merger agreement generally prohibits Parsley (unless consented to in advance by Pioneer, which consent may not be unreasonably withheld, conditioned, or delayed) and any subsidiary of Parsley from declaring, setting aside or paying dividends or making any other distributions to its stockholders until the earlier of the effective time and the termination of the merger agreement in accordance with its terms, except for (i) quarterly cash dividends on shares of Parsley Class A common stock not to exceed $0.05 per share and corresponding cash distributions on the Parsley LLC units not to exceed $0.05 per Parsley LLC unit, in each case with customary record and payment dates, (ii) dividends by a wholly-owned subsidiary of either Parsley or Parsley LLC to its parent or parents or (iii) any tax-related distribution pursuant to the terms of the operating agreement of Parsley LLC.

For additional information on the treatment of dividends pursuant to the merger agreement, which approval (subject to official noticesee “The Merger Agreement—Conduct of issuance)Business.”

Listing of Pioneer Common Stock; Delisting and Deregistration of Parsley Class A Common Stock

It is a condition to the merger. Upon completionconsummation of the merger,mergers that the shares of Pioneer Southwest common units currently listedstock issuable to Parsley Class A stockholders and Parsley LLC unitholders in connection with the mergers be approved for listing on the NYSE, subject to official notice of issuance.

Shares of Parsley Class A common stock currently trade on the NYSE under the stock symbol “PE”. When the mergers are completed, Parsley will cease to exist and the Parsley Class A common stock will cease to be listedtraded on the NYSE and will be subsequently deregistered under the Exchange Act.

Accounting TreatmentAppraisal Rights or Dissenters’ Rights

Pioneer

Under Delaware law, Pioneer stockholders are not entitled to appraisal rights or dissenters’ rights in connection with the issuance of shares of Pioneer common stock as contemplated by the merger agreement.

Parsley

Parsley Class A stockholders are not entitled to appraisal rights or dissenters’ rights in connection with the mergers under Parsley’s organizational documents or Delaware law because they are receiving shares of Pioneer common stock and Pioneer common stock is expected to continue to be traded on the NYSE during the pendency of and following the effectiveness of the mergers and Pioneer’s corporate status will not change because the mergers are being consummated between various subsidiaries of Pioneer, on the one hand, and Parsley or Parsley

LLC, on the other hand. However, if the mergers are completed, Parsley Class B stockholders who do not vote in favor of the Parsley merger proposal are entitled to appraisal rights under Section 262 solely with respect to their shares of Parsley Class B common stock (and not, for the avoidance of doubt, any shares of Parsley Class A common stock or Parsley LLC units held by them), provided that they comply with the conditions established by Section 262.

The merger will be accounted fordiscussion below is not a complete summary regarding appraisal rights available to Parsley Class B stockholders under Delaware law and is qualified in accordance with Financial Accounting Standards Board Accounting Standards Codification 810,Consolidations — Overall — Changesits entirety by reference to the text of the relevant provisions of Delaware law, which are attached to this joint proxy statement/prospectus as Annex F. Parsley Class B stockholders intending to exercise appraisal rights should carefully review Annex F. Failure to follow precisely any of the statutory procedures set forth in Parent’s Ownership InterestAnnex F may result in a Subsidiary,termination or waiver of these rights. This summary does not constitute legal or other advice, nor does it constitute a recommendation that Parsley Class B stockholders exercise their appraisal rights under Delaware law.

Under Section 262, when a merger agreement is to be submitted for adoption at a meeting of stockholders, the corporation must, not less than 20 days prior to the meeting, notify each of its stockholders who was a stockholder on the record date for notice of such meeting with respect to shares of which appraisal rights are available that appraisal rights are available and include in the notice a copy of Section 262. This joint proxy statement/prospectus constitutes Parsley’s notice to Parsley Class B stockholders of the availability of appraisal rights in connection with the mergers.

A stockholder wishing to exercise the right to demand appraisal of his, her or its shares of Parsley Class B common stock must not vote in favor of the Parsley merger proposal and must deliver to Parsley a separate written demand for appraisal of his, her or its shares before the vote with respect to the Parsley merger proposal is referredtaken. This written demand for appraisal must be in addition to as ASC 810. As Pioneerand separate from any proxy or vote abstaining from or voting against the approval of the Parsley merger proposal and the adoption of the merger agreement such that a proxy, abstention or vote against the Parsley merger proposal will control Pioneer Southwest beforenot in and of itself constitute a written demand for appraisal satisfying the requirements of Section 262. A demand for appraisal must reasonably inform Parsley of the identity of the stockholder and that such stockholder intends thereby to demand appraisal of the shares of Parsley Class B common stock held by such stockholder. If the mergers are completed, within 10 days after the effective time, the surviving corporation must give written notice that the mergers have become effective to each Parsley Class B stockholder who has not voted in favor of the Parsley merger the changes in Pioneer’s ownership interest in Pioneer Southwest willproposal and has otherwise complied with Section 262.

All demands for appraisal should be accounted for as an equity transactionaddressed and no gaindelivered to Parsley Energy, Inc., 303 Colorado Street, Austin, Texas 78701, Attn: General Counsel, and must be executed by, or loss on the merger will be recognized in Pioneer’s consolidated statements of operations.

Pending Litigation

On May 13, 2013, David Flecker, a purported unitholder of Pioneer Southwest, filed a class action petition on behalf of, the Pioneer Southwest unitholdersstockholder of record of shares of Parsley Class B common stock. ALL DEMANDS MUST BE DELIVERED TO PARSLEY BEFORE THE VOTE ON THE PARSLEY MERGER PROPOSAL IS TAKEN AT THE PARSLEY SPECIAL MEETING.

If a Parsley Class B stockholder fails to deliver a written demand for appraisal within the time period specified above, such holder’s shares of Parsley Class B common stock will be cancelled for no additional consideration as provided for in the merger agreement, and will have no appraisal rights with respect to his, her or its shares of Parsley Class B common stock.

To be effective, a derivative suitdemand for appraisal by a Parsley Class B stockholder must be made by, or in the name of, the registered stockholder. Beneficial owners who do not also hold the shares of record may not directly make appraisal demands to Parsley. The beneficial owner must, in these cases, have the registered owner, such as a broker, fiduciary, depositary or other nominee to follow the steps summarized herein. If shares are owned of record by a person other than the beneficial owner, including a broker, fiduciary (such as a trustee, guardian or custodian), depositary or other nominee, such demand must be executed by or for the record owner. If the shares are owned of record by more than one person, as in a joint tenancy or tenancy in common, the demand should be

executed by or on behalf of Pioneer Southwest against Pioneer USA, Pioneer Southwest GPall joint owners. An authorized agent, including an authorized agent for two or more joint owners, may execute the demand for appraisal for a stockholder of record; however, the agent must identify the record owner or owners and expressly disclose the fact that, in exercising the demand, he or she is acting as agent for the record owner. If a stockholder holds shares of Parsley Class B common stock through a broker who in turn holds the shares through a central securities depository nominee such as Cede & Co., a demand for appraisal of such shares must be made by or on behalf of the depository nominee and must identify the depository nominee as the record owner. A record owner, such as a broker, who holds shares as a custodian for others, may exercise the record owner’s right of appraisal with respect to the shares held for one or more beneficial owners, while not exercising this right for other beneficial owners. In that case, the written demand should state the number of shares as to which appraisal is sought. Where no number of shares is expressly mentioned, the demand will be presumed to cover all shares held in the name of the record owner. In addition, the stockholder must continuously hold the shares of Parsley Class B common stock of record from the date of making the demand through the effective time.

If you hold your shares of Parsley Class B common stock in a brokerage account or in another custodian form and you wish to exercise appraisal rights, you should consult with your bank, broker or other custodian to determine the appropriate procedures for the making of a demand for appraisal by the custodian.

At any time within 60 days after the effective time, any Parsley Class B stockholder who has demanded an appraisal, but has neither commenced an appraisal proceeding nor joined an appraisal proceeding as a named party, has the right to withdraw such stockholder’s demand and accept the terms of the mergers. If, following a demand for appraisal, a Parsley Class B stockholder has withdrawn his, her or its demand for appraisal in accordance with Section 262, such stockholder will receive no additional consideration for his, her or its shares of Parsley Class B common stock in accordance with the terms of the merger agreement.

Within 120 days after the effective time, any stockholder who has delivered a demand for appraisal in accordance with Section 262 will, upon written request to the surviving corporation, be entitled to receive from the surviving corporation a written statement setting forth the aggregate number of shares not voted in favor of the Parsley merger proposal and with respect to which demands for appraisal rights have been received and the directorsaggregate number of Pioneer Southwest GP,holders of these shares. This written statement will be given to the requesting stockholder within 10 days after the stockholder’s written request is received by the surviving corporation or within 10 days after expiration of the period for delivery of demands for appraisal, whichever is later. Within 120 days after the effective time, either the surviving corporation or any stockholder who has complied with the conditions of Section 262 may commence an appraisal proceeding by filing a petition in the 134th Judicial DistrictDelaware Court of Dallas County, Texas (the “Flecker Lawsuit”). A similar class actionChancery demanding a determination of the “fair value” of the shares of Parsley Class B common stock held by all dissenting stockholders. Upon the filing of the petition by a stockholder, service of a copy of the petition must be made upon the surviving corporation. The surviving corporation has no obligation to file a petition in the Delaware Court of Chancery in the event there are dissenting stockholders, and derivative suitParsley has no present intent to file a petition in the Delaware Court of Chancery. Accordingly, Parsley Class B stockholders who desire to have their shares appraised should initiate any petitions necessary for the perfection of their appraisal rights within the time periods and in the manner prescribed in Section 262.

If a petition for appraisal is timely filed by a stockholder and a copy of the petition is delivered to the surviving corporation, the surviving corporation will then be obligated, within 20 days after receiving service of a copy of the petition, to file in the office of the Register in Chancery in which the petition was filed againsta duly verified list containing the same defendants on May 20, 2013, in the 160th Judicial Districtnames and addresses of Dallas County, Texas, by purported unitholder Vipul Patel (the “Patel Lawsuit”). On August 27, 2013, the plaintiff in the Flecker Lawsuit filedall stockholders who have demanded an amended petition. On September 3, 2013, the court consolidated the Patel Lawsuit into the Flecker Lawsuit (as consolidated, the “Texas State Court Lawsuit”),appraisal of their shares and the plaintiffs filed a consolidated derivative and class action petition on September 5, 2013.

The Texas State Court Lawsuit alleges, among other things, that the consideration offered by Pioneer is unfair and inadequate and that, by pursuing a transaction that is the result of an allegedly conflicted and unfair process, the defendants have breached their duties under Pioneer Southwest’s partnership agreementwith whom agreements as well as the implied covenant of good faith and fair dealing, and are engaging in self-dealing. Specifically, the lawsuit alleges that the director defendants: (i) engaged in self-dealing, failed to act in good faith toward Pioneer Southwest, and breached their duties owed to Pioneer Southwest; (ii) failed to properly value Pioneer Southwest and its various assets and operations and ignored or failed to protect against the numerous conflicts of interest arising out of the proposed transaction; and (iii) breached the implied covenant of good faith and fair dealing by

engaging in a flawed merger process. The Texas State Court Lawsuit also alleges that defendants Pioneer, Pioneer USA and Pioneer Southwest GP aided and abetted the director defendants in their purported breach of fiduciary duties.

Based on these allegations, the plaintiffs in the Texas State Court Lawsuit seek to enjoin the defendants from proceeding with or consummating the proposed transaction. To the extent that the merger is implemented before relief is granted, the plaintiffs seek to have the merger rescinded. The plaintiffs also seek money damages and attorneys’ fees. The defendants have filed a motion to dismiss the Texas State Court Lawsuit based on improper forum.

On August 21, 2013, Allan H. Beverly, a purported Pioneer Southwest unitholder, filed a class action complaint against Pioneer Southwest, Pioneer, Pioneer USA, MergerCo and the directors of Pioneer Southwest GP in the United States District Court for the Northern District of Texas (the “Beverly Lawsuit”). The Beverly Lawsuit alleges that the defendants breached their fiduciary duties by agreeing to the merger by means of an unfair process and for an unfair price. Specifically, the lawsuit alleges that the director defendants: (i) failed to maximize the value of Pioneer Southwest to its public unitholders and took steps to avoid competitive bidding; (ii) failed to properly value Pioneer Southwest; and (iii) ignored or failed to protect againsttheir shares have not been reached by the numerous conflictssurviving corporation. The Register in Chancery, if so ordered by the Delaware Court of interest arising outChancery, must give notice of the proposed transaction.time and place fixed for the hearing of such petition by registered or certified mail to the surviving corporation and to the stockholders shown on the list at the addresses therein stated. Such notice must also be given by one or more publications at least one week before the day of the hearing, in a newspaper of general circulation published in the City of Wilmington, Delaware or such publication as the Delaware Court of Chancery deems advisable. The Beverly Lawsuit also alleges

forms of the notices by mail and by publication must be approved by the Delaware Court of Chancery, and the costs thereof will be borne by the surviving corporation. After the Register in Chancery provides notice to those stockholders and the surviving corporation, if so ordered by the Delaware Court of Chancery, the Delaware Court of Chancery is empowered to conduct a hearing upon the petition, and to determine those stockholders who have complied with Section 262 and who have become entitled to the appraisal rights provided thereby. The Delaware Court of Chancery may require the stockholders who have demanded appraisal for their shares and who hold certificated shares of Parsley Class B common stock to submit their stock certificates to the Register in Chancery for notation thereon of the pendency of the appraisal proceedings, and if any stockholder fails to comply with that defendants Pioneer, Pioneer USAdirection, the Delaware Court of Chancery may dismiss the proceedings as to that stockholder.

After the Delaware Court of Chancery’s determination of the Parsley Class B stockholders entitled to appraisal, an appraisal proceeding will be conducted in accordance with the rules of the Delaware Court of Chancery, including any rules specifically governing appraisal proceedings. Through such proceeding, the Delaware Court of Chancery will determine the “fair value” of the shares of Parsley Class B common stock, exclusive of any element of value arising from the accomplishment or expectation of the mergers, together with interest, if any, to be paid upon the amount determined to be the “fair value.” Unless the Delaware Court of Chancery in its discretion determines otherwise for good cause shown, and MergerCo aidedexcept as otherwise provided in Section 262, interest on an appraisal award from the effective date through the date of payment of the judgment will be compounded quarterly and abettedwill accrue at 5% over the director defendantsFederal Reserve discount rate (including any surcharge) as established from time to time during the period between the effective date and the date of payment of the judgment. At any time before the entry of judgment in their purported breachthe proceedings, the surviving corporation may pay to each stockholder entitled to appraisal an amount in cash, in which case interest shall accrue thereafter only upon the sum of fiduciary duties.(a) the difference, if any, between the amount paid and the “fair value” of the shares as determined by the Delaware Court of Chancery and (b) interest theretofore accrued, unless paid at that time. Upon application by the surviving corporation or by any stockholder entitled to participate in the appraisal proceeding, the Delaware Court of Chancery may, in its discretion, proceed to trial upon the appraisal before the final determination of the stockholders entitled to an appraisal. Any stockholder whose name appears on the list filed by the surviving corporation and who has submitted such stockholder’s stock certificates to the Register in Chancery, if so required, may participate fully in all proceedings until it is finally determined that such stockholder is not entitled to appraisal rights under Section 262.

On September 13, 2013, Douglas Shelton, another purported Pioneer Southwest unitholder, filed a class action complaint againstWhen the “fair value” is determined, the Delaware Court of Chancery will direct the payment of such value, with interest thereon accrued during the pendency of the proceeding, if any, by the surviving corporation to the stockholders entitled to receive the same, defendants in the Beverly Lawsuit (as well as Pioneer Southwest GP)case of holders of uncertificated stock forthwith, and in the samecase of holders of shares represented by stock certificates upon the surrender to the surviving corporation of the stock certificates representing such stock.

In determining the “fair value” of the shares of Parsley Class B common stock, the Delaware Court of Chancery is required to take into account all relevant factors. In Weinberger v. UOP, Inc., the Delaware Supreme Court discussed the factors that could be considered in determining “fair value” in an appraisal proceeding, stating that “proof of value by any techniques or methods which are generally considered acceptable in the financial community and otherwise admissible in court” should be considered, and that “fair price obviously requires consideration of all relevant factors involving the value of a company.”

The Delaware Supreme Court has stated that, in making this determination of “fair value,” the court must consider market value, asset value, dividends, earnings prospects, the nature of the enterprise and any other facts that were known or that could be ascertained as of the date of the mergers that throw any light on future prospects of the merged corporation. Section 262 provides that “fair value” is to be “exclusive of any element of value arising from the accomplishment or expectation of the mergers.” In Cede & Co. v. Technicolor, Inc., the Delaware Supreme Court stated that such exclusion is a “narrow exclusion [that] does not encompass known elements of value,” but which rather applies only to the speculative elements of value arising from such accomplishment or expectation. In Weinberger, the Delaware Supreme Court also construed Section 262 to mean

that “elements of future value, including the nature of the enterprise, which are known or susceptible of proof as of the date of the mergers and not the product of speculation, may be considered.”

Parsley does not anticipate offering any consideration to any Parsley Class B stockholder exercising appraisal rights. The costs of the appraisal proceedings (which do not include attorneys’ fees or the fees and expenses of experts) may be determined by the Delaware Court of Chancery and taxed upon the parties as the Beverly Lawsuit (the “Shelton Lawsuit”). The Shelton Lawsuit makes similar allegations toDelaware Court of Chancery deems equitable under the Beverly Lawsuit, andcircumstances. Upon the application of a stockholder, the Delaware Court of Chancery may also allegesorder that Section 7.9all or a portion of the Pioneer Southwest partnership agreement fails to alter or eliminate the defendants’ common law fiduciary duties owed to Pioneer Southwest unitholders in the context of the merger. Specifically, the lawsuit alleges: (1) that Pioneer, as controlling unitholder, failed to fulfill its fiduciary dutiesexpenses incurred by any stockholder in connection with the merger because it purportedly cannot establish that the proposed merger is the result of a fair process that will return a fair price to the Pioneer Southwest unaffiliated unitholders; (2) that the director defendants breached their fiduciary duties by failing to exercise due care and diligence in connection with the proposed merger because the proposed merger is purportedly not the result of a fair process that will return a fair price to the Pioneer Southwest unaffiliated unitholders; and (3) that the non-director defendants aided and abetted the director defendants in their purported breach of fiduciary duties. The plaintiffs in the Beverly Lawsuitappraisal proceeding, including, without limitation, reasonable attorneys’ fees and the Shelton Lawsuit seekfees and expenses of experts, to be charged pro rata against the same remedies asvalue of all shares entitled to appraisal. In the plaintiffsabsence of such an order, each party bears its own expenses. From and after the effective time, no Parsley Class B stockholder who has duly demanded appraisal in the Texas State Court Lawsuit.

Pioneer and Pioneer Southwest cannot predict the outcomecompliance with Section 262 shall be entitled to vote such shares of theseParsley Class B common stock subject to that demand for any purpose, or to receive payments of dividends or any other lawsuits that might be filed subsequentdistributions with respect to those shares, other than with respect to dividends or distributions payable to record stockholders as of a record date prior to the dateeffective time; however, if no petition for appraisal is filed within 120 days after the effective time, or if the stockholder delivers to the surviving corporation a written withdrawal of his, her or its demand for appraisal and an acceptance of the filingterms of this proxy statement/prospectus, nor can Pioneerthe mergers within 60 days after the effective time, then the right of such stockholder to appraisal will cease and Pioneer Southwest predict the amount of time and expense that stockholder will be requiredentitled to resolve these lawsuits. Pioneer, Pioneer Southwest and the other defendants namedreceive no additional consideration in the lawsuits intend to defend vigorously against these and any other actions.

Voting Agreement

In connectionaccordance with the merger agreement, Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP entered into the voting agreement on August 9, 2013. Pursuant to the voting agreement, Pioneer, Pioneer USA and MergerCo have agreed to vote the Pioneer Southwest common units owned by them in favorterms of the merger proposal, includingagreement. Any withdrawal of a demand for appraisal made more than 60 days after the 18,721,200 Pioneer Southwest common units currently held by Pioneer USA, which units represent 52.4%effective time may only be made with the written approval of the outstanding Pioneer Southwestsurviving corporation. No appraisal proceeding in the Delaware Court of Chancery will be dismissed as to any stockholder without the approval of the court, which approval may be conditioned upon any terms the Delaware Court of Chancery deems just. However, the foregoing will not affect the right of any Parsley Class B stockholder who has not commenced an appraisal proceeding or joined an appraisal proceeding as a named party to withdraw such stockholder’s demand for appraisal and to accept the terms offered upon the mergers within 60 days after the effective time.

Failure to follow the steps required by Section 262 for perfecting appraisal rights may result in the loss of appraisal rights. In view of the complexity of Section 262, Parsley Class B stockholders who may wish to not approve the Parsley merger proposal and instead pursue appraisal rights should consult their legal advisors. To the extent there are any inconsistencies between the foregoing summary and Section 262, Section 262 will govern.

Prior to the mergers, each holder of shares of Parsley Class B common units and therefore constitute a sufficientstock also holds an identical number of Pioneer SouthwestParsley LLC units. Even if a Parsley Class B stockholder seeks appraisal of its shares of Parsley Class B common units to approve the merger proposal atstock, such holder will receive the Pioneer Southwest special meeting. The voting agreementcommon stock payable in respect of such corresponding Parsley LLC units pursuant to the Opco merger. In addition, Pioneer will terminate upontake the earliest of (i)position in an appraisal proceeding that the completionfair value of the merger, (ii)Parsley Class B common stock is zero because each corresponding Parsley LLC unit will be converted into the terminationright to receive Pioneer common stock at an exchange ratio identical to the exchange ratio applicable to a share of Parsley Class A common stock and this treatment of the Parsley Class B common stock and Parsley LLC units in the first merger and the Opco merger, respectively, is consistent with the Parsley LLC agreement and (iii) the mutual written agreementeconomic terms of the parties.

Parsley Class B common stock set forth in Parsley’s certificate of incorporation.

The foregoing is a brief summary of Section 262 that sets forth the procedures for demanding statutory appraisal rights. This summary, however, is not a complete statement of all applicable requirements and is qualified in its entirety by reference to Section 262, a copy of the text of which is attached as Annex F to this joint proxy statement/prospectus.

THE MERGER AGREEMENT

The following is a summary ofdescribes the material terms of the merger agreement and the merger transactions. The provisions of the merger agreement, are extensivewhich is attached as Annex A to this joint proxy statement/prospectus and not easily summarized. Thisincorporated by reference herein, and certain exhibits thereto. The summary of the material provisions of the merger agreement below and elsewhere in this joint proxy statement/prospectus is qualified in its entirety by reference to the merger agreement. This summary does not purport to be complete and may not contain all of the information about the merger agreement a copy of whichthat is attachedimportant to this proxy statement/prospectus as Annex Ayou. Pioneer and is incorporated into this proxy statement/prospectus by reference. You shouldParsley encourage you to read carefully the merger agreement in its entirety becausebefore making any investment or voting decisions as it and not this proxy statement/prospectus, is the principal legal document that governsgoverning the terms of the merger.

The merger agreement is includedbusiness combination between Pioneer and Parsley described in this joint proxy statement/prospectusprospectus. This section is only intended to provide you with information regarding itsthe terms and is not intended to provide any factualof the merger agreement. Neither Pioneer nor Parsley intends that the merger agreement be a source of business or operational information about Pioneer or Parsley. Accordingly, the representations, warranties, covenants, and other agreements in the merger agreement should not be read alone, and you should read the information provided elsewhere in this joint proxy statement/prospectus and in the public filings Pioneer Southwest. and Parsley make with the SEC, as described in “Where You Can Find More Information.”

Explanatory Note Regarding the Merger Agreement

The merger agreement containsand this summary of its terms have been included to provide you with information regarding the terms of the merger agreement. Pioneer and Parsley are responsible for considering whether additional disclosure of material information is required to make the statements in this joint proxy statement/prospectus not misleading. Factual disclosures about Pioneer and Parsley contained in this joint proxy statement/prospectus or Pioneer’s or Parsley’s public reports filed with the SEC may supplement, update, or modify the factual disclosures about Pioneer or Parsley contained in the merger agreement and described in the summary. The representations, warranties, and covenants made in the merger agreement by Pioneer and Parsley are qualified and subject to important limitations agreed to by Pioneer and Parsley in connection with negotiating the terms of the merger agreement. In particular, in your review of the representations and warranties by each of the parties tocontained in the merger agreement. Theseagreement and described in this summary, it is important to bear in mind that the representations and warranties have beenwere made solely for the benefit of the other parties to the merger agreement, and:

may not be intended as statements of fact, but rather as a wayand were negotiated with the principal purpose of allocating risk between the parties to the merger agreement, rather than establishing matters as facts. The representations and warranties may also be subject to a contractual standard of materiality that may be different from what is generally relevant to stockholders or applicable to reports and documents filed with the SEC, and in the event the statements therein prove to be inaccurate; and

have beensome cases are qualified by confidential disclosures inthat were made by each of Pioneer’s and Pioneer Southwest’s SEC filed reports,party to the other, which disclosures are not reflected in the merger agreement itself.

Informationor otherwise publicly disclosed. The representations and warranties in the merger agreement will not survive the completion of the mergers. Moreover, information concerning the subject matter of the representations and warranties may have changed since the date of the merger agreement and subsequent developments or new information qualifying a representation or warranty may have been included or incorporated by reference into this information mayjoint proxy statement/prospectus. For the foregoing reasons, the representations, warranties, and covenants or mayany descriptions of those provisions should not be fully reflectedread alone, but instead should be read together with the information provided elsewhere in Pioneer’sthis joint proxy statement/prospectus and Pioneer Southwest’s public disclosures.in the documents incorporated by reference into this joint proxy statement/prospectus. Please see “Where You Can Find More Information.”

In the following summaryTerms of the materialMergers; Merger Consideration

The merger agreement provides that, upon the terms ofand subject to the conditions set forth in the merger agreement, all references to(i) at the subsidiaries of Pioneer or Pioneer USA do not include Pioneer Southwest GP or its subsidiaries (including Pioneer Southwest), unless explicitly stated, and all references to the affiliates of Pioneer Southwest GP, Pioneer Southwest and their subsidiaries do not include Pioneer, Pioneer USA, MergerCo or any of their respective subsidiaries (other than Pioneer Southwest GP, Pioneer Southwest or any of its subsidiaries) unless explicitly stated.

Structure of theeffective time, Merger and Related Transactions

Pursuant to the Merger Agreement, MergerCoSub Inc. will merge with and into Pioneer Southwest,Parsley, with Pioneer Southwest (referred to herein, interchangeably, as “Pioneer Southwest” or the “surviving entity”)Parsley surviving the merger. Pioneer Southwest GP, which ismerger as the surviving corporation and a direct wholly-owned by Pioneer USA, will remain the sole general partnersubsidiary of Pioneer, Southwest,(ii) simultaneously with the first merger, Opco Merger Sub will merge with and Pioneer USA will becomeinto Parsley LLC, with Parsley LLC surviving the sole limited partnermerger as the surviving company and a direct and indirect wholly-owned subsidiary of Pioneer, Southwest. Except forand (iii) immediately following the common units owned by Pioneer USA, alleffective time, Parsley, as the surviving corporation of the common units representing limited partner interestsfirst merger, will merge with and into Merger Sub LLC, with Merger Sub LLC surviving the merger as a direct wholly-owned subsidiary of Pioneer.

Upon the terms and subject to the conditions set forth in Pioneer Southwest outstandingthe merger agreement, at the effective time, each eligible share of the merger (the “effective time”)Parsley Class A common stock and each eligible Parsley LLC unit will be cancelled and converted automatically into the right to receive 0.23250.1252 shares of Pioneer common stock, with cash paid in lieu of the issuance of any fractional shares of Pioneer common stock, and each issued and outstanding share of Parsley Class B common stock will automatically be cancelled for no additional consideration. In addition, Parsley and Pioneer will take, or cause to be taken, all actions necessary so that at the effective time, Parsley’s issued and outstanding time-based restricted stock unit awards, performance-based restricted stock unit awards, time-based restricted stock awards and performance-based restricted stock awards will be treated as described below in “—Treatment of Parsley Equity-Based Awards.”

Pioneer will not issue any fractional shares of Pioneer common stock in connection with the mergers. In lieu of any fractional shares of Pioneer common stock to which a Parsley Class A stockholder or Parsley LLC unitholder would otherwise have been entitled, each Parsley Class A stockholder or Parsley LLC unitholder shall receive cash, without interest, in an amount equal to the product of (i) such fractional part of a share of Pioneer common stock per Pioneer Southwest common unit. No fractional sharemultiplied by (ii) the volume weighted average trading price of Pioneer common stock will be issued inon the merger. In lieu of receiving any fractionalNYSE for the five consecutive trading days immediately prior to the closing date, as reported by Bloomberg, L.P. (the “fractional share of Pioneer common stock to which any Pioneer Southwest unitholder would otherwise have been entitled, after aggregating all fractions of shares to which such unitholder would be entitled, any fractional share will be rounded up to a whole share of Pioneer common stock.consideration”).

EachClosing and Effective Time of the Mergers

Unless the parties agree otherwise, the closing of the mergers will take place on a date that is two business days following the satisfaction or, to the extent permitted by applicable law, waiver of the conditions to closing (other than any such conditions that by their terms are to be satisfied at the closing, but subject to the satisfaction or, to the extent permitted by applicable law, waiver of such conditions).

As soon as practicable on the closing date, a certificate of formation of Pioneer Southwest GP, asmerger with respect to the first merger will be filed with the Secretary of State of the State of Delaware on June 19, 2007,and, concurrently therewith, a certificate of merger with respect to the Opco merger will be filed with the Secretary of State of the State of Delaware. The first merger and the limited liability company agreement of Pioneer Southwest GP dated as of April 28, 2008,Opco merger will each as amended from time to time, will remain unchangedbecome effective at the effectivesame time on the closing date as the parties agree in writing and will continue to bespecify in the applicable certificate of formation andmerger. In addition, as soon as practicable on the limited liability company agreement, respectively, of Pioneer Southwest GP following completion of the merger. Each of theclosing date, a certificate of limited partnership of Pioneer Southwest, asmerger with respect to the subsequent merger will be filed with the Secretary of State of the State of Delaware on June 19, 2007,and the subsequent merger will become effective one minute after the effective time, as will be specified in the certificate of merger.

Pioneer and Parsley have targeted to complete the mergers in the first quarter of 2021, subject to receipt of the required Pioneer stockholder approval and Parsley stockholder approval, regulatory approvals and the satisfaction or waiver of the other conditions to the mergers (described below under “—Conditions Precedent to the Mergers”).

Treatment of Parsley Equity-Based Awards

Prior to the effective time, Parsley and Pioneer Southwest’s partnership agreement, eachwill take, or cause to be taken, all actions necessary to provide for the following treatment of Parsley equity awards:

Parsley Time-Based Restricted Stock Unit Awards: Each vested Parsley time-based restricted stock unit award (including any Parsley time-based restricted stock unit award that vests by its terms as amended froma result of the consummation of the mergers) that is issued and outstanding as of immediately prior to the effective time to time, will, remain unchanged at the effective time, be cancelled and will continueconverted into the right to receive a number of shares of Pioneer common stock (to be the certificate of limited partnership and agreement of limited partnership, respectively, of the surviving entity immediatelyissued within 30 days following completion of the merger.

When the Merger Becomes Effective

The closing of the merger will take place on either (i) the first business day after the date on which the last of the conditions set forth in the merger agreement (other than those conditions that by their nature cannot be satisfied until the closing date) have been satisfied or waiveddate in accordance with the terms of the merger agreement,applicable restricted stock unit award agreement), rounded up or (ii) such other date to which Pioneer and Pioneer Southwest may agree in writing. Please read “The Merger Agreement — Conditionsdown to the Merger” beginning on page 86 for a more complete descriptionnearest whole share, equal to the product of (a) the conditions that must be satisfied or waivednumber of shares of Parsley Class A common stock subject to such award as of immediately prior to closing. The date on which the closing actually occurs is referred to as the “closing date.”

The merger will become effective at the effective time which will occur uponand (b) the filing ofexchange ratio. Any Parsley time-based restricted stock unit award held by a properly executed certificate of merger with the Secretary of State

non-employee member of the State of Delaware or at such later date and timeParsley board will become fully vested as may be agreed by Pioneer and Pioneer Southwest and set forth in the certificate of merger.

Effect of Merger on Outstanding Pioneer Southwest Common Units and Other Interests

At the effective time, by virtuea result of the merger and without any further action on the part of anyconsummation of the partiesmergers and will be treated as a vested Parsley time-based restricted stock unit award entitled to the merger agreement orforegoing treatment. Each unvested Parsley time-based restricted stock unit award (excluding any holder of shares of Pioneer commonParsley time-based restricted stock or Pioneer Southwest common units, the following will occur:

Allunit award that vests by its terms as a result of the limited liability company interests in MergerCoconsummation of the mergers) that is issued and outstanding as of immediately prior to the effective time will, at the effective time, be cancelledconverted, on the same terms and no consideration will be received therefor.

The general partner interest in Pioneer Southwest issued and outstandingconditions (including time-based vesting conditions) as were applicable to such award as of immediately prior to the effective time, will remain outstanding ininto the surviving entity, andright to receive a time-based award covering a number of shares of Pioneer Southwest GP,common stock, rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as the holder of such general partner interest, will continue as the sole general partner of the surviving entity as set forth in the Pioneer Southwest partnership agreement (which will continue unchanged as the agreement of limited partnership of the surviving entity as of the effective time).

Each Pioneer Southwest common unit issued and outstanding immediately prior to the effective time (other than Pioneer Southwest common units heldand (b) the exchange ratio.

Parsley Time-Based Restricted Stock Awards: Each unvested Parsley time-based restricted stock award (excluding any Parsley time-based restricted stock award that vests by Pioneer Southwest or its subsidiaries or Pioneer or its subsidiaries including Pioneer USA) will be converted intoterms as a result of the right to receive 0.2325consummation of a share of Pioneer common stock.

All Pioneer Southwest common units owned by Pioneer USA immediately prior to the effective time will be unchanged and remainmergers) that is issued and outstanding as Pioneer Southwest common units of the surviving entity at the effective time; such Pioneer Southwest common units will, immediately after the effective time, constitute all of the issued and outstanding common units of, and limited partner interests in, the surviving entity, and, thereby, Pioneer USA will continue as a limited partner in the surviving entity and become the sole limited partner of the surviving entity; at the effective time, the books and records of Pioneer Southwest will be revised to reflect that all other limited partners of Pioneer Southwest cease to be limited partners of Pioneer Southwest pursuant to the terms of the merger agreement, and Pioneer Southwest will continue in existence without dissolution.

If at the effective time there are any outstanding Pioneer Southwest common units owned by Pioneer Southwest or its subsidiaries, or by Pioneer or its subsidiaries (other than Pioneer USA), those Pioneer Southwest common units will automatically be cancelled and no consideration will be received therefor.

All phantom units representing the right to receive Pioneer Southwest common units issued under the Pioneer Southwest 2008 Long-Term Incentive Plan, as amended from time to time (the “Pioneer Southwest LTIP”), and outstanding immediately prior to the effective time will be converted, on the same terms and conditions (including time-based vesting conditions) as were applicable to such award as of immediately prior to the effective time, into awards ofthe right to receive a time-based restricted stock unitsaward covering a number of shares of Pioneer common stock, with the number of Pioneer restricted stock units subject to each converted award to be determined based on the exchange ratio, rounded up or down to the nearest whole Pioneer restrictedshare, equal to the product of (a) the number of shares of Parsley Class A common stock unit; the agreements between Pioneer Southwest GP and eachsubject to such award holder regarding such phantom units will be assumed by Pioneer; and such awards, as

converted pursuant of immediately prior to the merger agreement, will continue to be governed, on and after the effective time, by the terms and conditions of such agreements (subject to applicable adjustments required by the merger agreement after giving effect to the merger) and either by the Pioneer Southwest LTIP, if adopted by Pioneer pursuant to the merger agreement, or else by the Pioneer Natural Resources Company 2006 Long-Term Incentive Plan, as amended from time to time (the “Pioneer LTIP”).

All Pioneer Southwest common units (other than those held by Pioneer USA, which will continue to be held by Pioneer USA following the effective time and other than those held by Pioneer Southwest or its subsidiaries or by Pioneer or its subsidiaries (other than Pioneer USA), which(b) the exchange ratio.

Parsley Performance-Based Restricted Stock Unit Awards and Performance-Based Restricted Stock Awards: Each Parsley performance-based restricted stock unit award and Parsley performance-based restricted stock award that is issued and outstanding as of immediately prior to the effective time will be cancelleddeemed to have become vested pursuant to the terms of the merger agreement based on deemed achievement of the maximum level of performance applicable to such restricted stock unit award or restricted stock award as of the date immediately prior to the effective time. At the effective time, in accordance with the merger agreement), will cease to be outstanding andany such vested performance-based restricted stock unit award will automatically be cancelled and cease to exist. Each unaffiliated holder of a certificate representing Pioneer Southwest common units and each unaffiliated holder of non-certificated Pioneer Southwest common units represented by book-entry will cease to be a unitholder of Pioneer Southwest and will cease to have any rights as a unitholder of Pioneer Southwest, exceptconverted into the right to receive 0.2325a number of a shareshares of Pioneer common stock for each outstanding Pioneer Southwest common unit.

Holders of Pioneer Southwest common units as of(to be issued within 30 days following the effective time will have continued rights to any distribution, without interest, with respect to such Pioneer Southwest common units with a recordclosing date occurring prior to the effective time that may have been declared or made by Pioneer Southwest with respect to such Pioneer Southwest common units in accordance with the terms of the merger agreement and which remains unpaidapplicable award agreement), rounded up or down to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such award as of the effective time.

The holder of the general partner interest in Pioneer Southwest immediately prior to the effective time will have continued rights to any distribution, without interest, with respect to such general partner interest in Pioneer Southwest with a record date occurring prior toand (b) the exchange ratio. At the effective time, that may have been declaredany such vested performance-based restricted stock award will automatically be converted into the right to receive a number of shares of Pioneer common stock, rounded up or made by Pioneer Southwest with respectdown to the nearest whole share, equal to the product of (a) the number of shares of Parsley Class A common stock subject to such general partner interest in Pioneer Southwest in accordance with the terms of the merger agreement and which remains unpaidaward as of the effective time.

Holders of phantom units in Pioneer Southwest immediately prior to the effective time will have continued rights to any distribution, without interest, in accordance withand (b) the termsexchange ratio.

Exchange and conditionsPayment Procedures

The conversion of the applicable award agreements between Pioneer Southwest GP and each such holder (including pursuant to any distribution equivalent rights) with respect to such phantom units with a record date occurring prior to the effective time that may have been declared or made by Pioneer Southwest with respect to Pioneer Southwest common units in accordance with the terms of the merger agreement and which remains unpaid as of the effective time.

The unit transfer books of Pioneer Southwest will be closed immediately and there will be no further registration of transfers on the unit transfer books of Pioneer Southwest with respect to Pioneer Southwest common units.

Unaffiliated Pioneer Southwest unitholders will have no rights as holders of PioneerParsley Class A common stock other thanand Parsley LLC units into the right to receive the merger consideration, untiland the holder has surrenderedcancellation of Parsley Class B common stock for no additional consideration, will occur automatically at the Pioneer Southwest common unitseffective time. Continental will be the exchange agent in the mergers and will exchange certificates for the merger consideration and perform other duties as provided in the merger agreement.

For a description of Pioneer’s common stock, please refer to Pioneer’s Description of Capital Stock set forth in Pioneer’s Current Report on Form 8-K filed with the SEC on September 16, 2013 and incorporated by reference herein, and for a description of the comparative rights of the holders of shares of Pioneer common stock and holders of Pioneer Southwest common units, please read “Comparison of the Rights of Pioneer Stockholders and Pioneer Southwest Unitholders.”

Exchange of Certificates; No Fractional Shares

Exchange AgentLetter of Transmittal

Prior to the effective time, Pioneer will appoint a commercial bank or trust companyAs soon as reasonably acceptable to Pioneer Southwest to act as exchange agent for the purpose of exchanging Pioneer Southwest common units

for Pioneer common stock and cash as required by the merger agreement. Promptlypracticable after the effective time, Pioneer will deposit or will cause to be deposited with the exchange agent for the benefitwill mail a letter of the holderstransmittal to each holder of the applicable Pioneer Southwest common units, for exchange through the exchange agent, newrecord of certificated shares of PioneerParsley Class A common stock and casheach Parsley LLC unitholder identified in the “Opco Schedule” attached as required by the merger agreement. Pioneer has agreed to make available to the exchange agent, from time to time as needed, cash sufficient to pay any dividends on Pioneer common stock issued pursuantExhibit B to the merger agreement without interest. Any cash and shares of Pioneer common stock deposited withas entitled to receive the exchange agent are referred to as the “exchange fund.” The exchange agent will deliver theOpco merger consideration contemplated to be paid for Pioneer Southwest common units pursuant to the merger agreement out of the exchange fund. Except as contemplated by the merger agreement, the exchange fund will not be used for any other purpose.

Exchange Procedures

Promptly after the effective time, Pioneer will instruct the exchange agent to mail to each applicable record holder of Pioneer Southwest common units a letter of transmittal and instructions explaining how to surrender Pioneer Southwest common units to the exchange agent.consideration. This lettermailing will contain instructions on how to surrender certificates or book-entryParsley LLC units, formerly representing Pioneer Southwest common unitsas applicable, in exchange for the merger consideration, such holder is entitled to receive under the merger agreement.

Pioneer Southwest common unit certificates should NOT be returned with the enclosed proxy card. Pioneer Southwest unitholders who deliver a properly completed and signed letter of transmittalany fractional share consideration and any other documents required by the instructions to the transmittal letter, together with their Pioneer Southwest common unit certificates, if any, will be entitled to receive:

new shares of Pioneer common stock representing, in the aggregate, the whole number of shares of Pioneer common stock that the holder has the right to receive pursuant to the terms of the merger agreement and as described above under “The Merger Agreement — Effect of Merger on Outstanding Pioneer Southwest Common Units and Other Interests,” and

a check in an amount equal to the aggregate amount of cash that the holder has the right to receive pursuant to the merger agreement for any cash payable in respect of dividends on Pioneer common stock with a record date after the effective time and a payment date before the date the units have been surrendered pursuant to the terms of the merger agreement.

No interest will be paid or accrued on any merger consideration or on any unpaid dividends payable in accordance with the merger agreement.

In the event of a transfer of ownership of Pioneer Southwest common units that has not been registered in the transfer records of Pioneer Southwest, the merger consideration payable in respect of those Pioneer Southwest common units may be paid to a transferee if the certificate representing those Pioneer Southwest common units or evidence of ownership of the book-entry Pioneer Southwest common units is presented to the exchange agent, and in the case of both certificated and book-entry Pioneer Southwest common units, accompanied by all documents required to evidence and effect the transfer, and the person requesting the exchange will pay to the exchange agent in advance any transfer or other taxes required by reason of the delivery of the merger consideration in any name other than that of the record holder of those Pioneer Southwest common units, or will establish to the satisfaction of the exchange agent that any transfer or other taxes have been paid or are not payable. Until the required documentation has been delivered and certificates, if any, have been surrendered as contemplated by the merger agreement, each certificate or book-entry Pioneer Southwest common unit will be deemed at any time after the effective time to represent only the right to receive, upon the delivery and surrender of the Pioneer Southwest common units, the merger consideration payable in respect of Pioneer Southwest common units and any cash or distributions to which the holder is entitled pursuant topayable under the terms of the merger agreement.

Termination of Exchange Fund

Any portion ofIf a certificate for Parsley Class A common stock has been lost, stolen or destroyed, the exchange fund constituting shares of Pioneer common stock or cash that remains undistributed toagent will deliver the holders of Pioneer Southwest common units after 180 days following the effective time will be delivered to Pioneer upon demand by Pioneer, and after such delivery, any former holders of Pioneer Southwest common units who have not complied with the provisions ofconsideration properly payable under the merger agreement will look onlyupon receipt of an affidavit, in form and

substance reasonably acceptable to Pioneer forand the merger consideration payable in respect of such Pioneer Southwest common unitsexchange agent, as to that loss, theft or any dividends with respect to Pioneer common stock to which they are entitled pursuant todestruction and the merger agreement, in each case, without any interest. Any amounts remaining unclaimed by holders of Pioneer Southwest common units immediately prior to such time as such amounts would otherwise escheat to or become the propertyposting of any governmental entity will, tobond determined by Pioneer or the extent permitted by applicable law, be held by Pioneer. Without limitation of the foregoing, after 180 days following the effective time,exchange agent as reasonably necessary as indemnity against any amounts remaining unclaimed by holders of Pioneer Southwest common units will become the property of Pioneer, subject to the legitimate claims of any person previously entitled to such Pioneer common stock.related claim.

Dividends with Respect to Unexchanged Pioneer Southwest Common UnitsBook-Entry Shares

No dividends declared or made with respect to shares of Pioneer common stock with a record date after the effective time will be paid to the holder of any Pioneer Southwest common units with respect to shares of Pioneer common stock that such holder would be entitled to receive in accordance with the merger agreement until the holder has delivered the required documentation and surrendered any certificates or book-entry unitsAs promptly as contemplated by the merger agreement. Subject to applicable law, following compliance with the requirements of the merger agreement, the following will be paid to a holder of new shares of Pioneer common stock, without interest: (i) promptly after the time of such compliance, the amount of any dividends with a record datepracticable after the effective time, and a payment date priorin any event no later than the third business day thereafter, the surviving company will cause the exchange agent to such compliance, payable with respectissue and send to sucheach holder of uncertificated eligible shares of Parsley Class A common stock represented by book entry the merger consideration, cash in lieu of any fractional shares of Pioneer common stock and (ii) at the appropriate payment date, the amount of any dividends with a record date after the effective time but prior to such delivery and surrender and with a payment date subsequent to such compliance, payable with respect to such shares of Pioneer common stock.

Further Rights in Pioneer Southwest Common Units

The merger consideration issued upon conversion of a Pioneer Southwest common unit in accordance with the terms of the merger agreement (including any cash paid pursuant to the merger agreement) and any declaredother distributions to be paid on the Pioneer Southwest common units as described in the merger agreement will be deemed to have been issued in full satisfaction of all rights pertaining to such Pioneer Southwest common unit.

Fractional Shares of Pioneer Common Stock

No certificates or scrip of shares of Pioneer common stock representing fractional shares of Pioneer common stock or book entry creditissuable as merger consideration.

Withholding

Each of the same will be issued upon the surrender of Pioneer Southwest common units outstanding immediately priorparties to the effective time in accordance with the merger agreement and such fractional interests will not entitle the owner to vote or to have any rights as a holder of any shares of Pioneer common stock. In lieu of receiving any fractional share of Pioneer common stock to which any Pioneer Southwest unitholder would otherwise have been entitled, after aggregating all fractions of shares to which such unitholder would be entitled, any fractional share will be rounded up to a whole share of Pioneer common stock.

No Liability

To the fullest extent permitted by law, none of Pioneer Southwest GP, Pioneer, Pioneer USA, Pioneer Southwest or the surviving entity or their respective representatives will be liable to any holder of Pioneer Southwest common units for any shares of Pioneer common stock (or dividends with respect thereto) or cash delivered to a public official pursuant to any abandoned property, escheat or similar law.

Lost Certificates

If any certificate has been lost, stolen or destroyed, upon the making of an affidavit of that fact by the person claiming such certificate to be lost, stolen or destroyed and, if required by Pioneer or the exchange agent, the posting by such person of an indemnity agreement or bond in a customary amount as indemnity against any claim that may be made against it with respect to such certificate, the exchange agent will pay the merger consideration payable in respect of Pioneer Southwest common units represented by such certificate and any payments to which the holders thereof are entitled pursuant to the merger agreement.

Withholding

The exchange agent will be entitled to deduct and withhold from theany consideration otherwise payable pursuant to the merger agreement to any holder of Pioneer Southwest common units such amounts as the exchange agent reasonably deems to beit is required to deduct and withhold under the Internal Revenue Code or any provision of state, local, or foreign tax law, with respect to making such payment under applicable law; provided that, so long as Parsley LLC delivers to Pioneer a certificate of non-foreign status for a Parsley LLC unitholder, no amount will be deducted or withheld under Code sections 1445 and 1446(f) from the making ofconsideration payable to such payment; provided, however, that the exchange agent will provide reasonable notice to theParsley LLC unitholder unless there is a change in applicable holders of Pioneer Southwest common units prior to withholdinglaw. If any amounts pursuant to the merger agreement. To the extent that amounts are so properly deducted andor withheld, by the exchange agent,then such amounts will be treated for all purposes of the merger agreement as having been paid to the holder of Pioneer Southwest common units in respect ofperson from whom such deduction and withholding was made by the exchange agent.they were deducted or withheld.

Investment of the Exchange FundDividends and Distributions

Pioneer will causeUntil Parsley Class A common stock certificates or book-entry shares are surrendered for exchange or a duly completed and a validly executed letter of transmittal regarding the exchange agent to invest any cash included in the exchange fundshares of Parsley Class A common stock or Parsley LLC units, as directed by Pioneer on a daily basis, in Pioneer’s sole discretion; provided, however that (i) any investment of the exchange fund will be limited to direct short-term obligations of,applicable, is delivered, no dividends or short-term obligations fully guaranteed as to principal and interest by, the U.S. government, and (ii) no such investment or loss will affect the amounts payable or the timing of the amounts payableother distributions with respect to Pioneer Southwest unitholders pursuant tocommon stock with a record date after the merger agreement. Any interest and other income resulting from such investmentseffective time will be paid promptly to Pioneer.

Anti-dilution Provisions

In(A) the eventholder of any subdivisions, reclassifications, recapitalizations, splits, unit or stock distributions or dividends, combinations or exchangesunsurrendered certificate with respect to or rights in respect of, Pioneer Southwest common units orthe shares of Pioneer common stock that such holder has the exchange ratio,right to receive upon the merger consideration,surrender, and the numberno cash payment in lieu of fractional shares of Pioneer common stock will be paid to any such holder or (B) the holder of any Parsley LLC unit with respect to the shares of Pioneer common stock that such holder has the right to receive upon the delivery, and no cash payment in lieu of fractional shares of Pioneer common stock will be issuedpaid to any such holder.

Representations and Warranties

The merger agreement contains customary representations and warranties of Pioneer and Parsley relating to their respective businesses. The representations and warranties in the merger will be correspondingly adjusted to provideagreement do not survive the effective time.

Each of Pioneer and Parsley has made representations and warranties to the holdersother regarding, among other things:

corporate matters, including organization, standing and power, capitalization and subsidiaries;

authority relative to execution and delivery of Pioneer Southwest common units the same economic effect asmerger agreement and the transactions contemplated by the merger agreement prior to such event.and the absence of conflicts with, or violations of, organizational documents or other obligations as a result of the mergers;

SEC filings and financial statements contained in those filings;

internal controls and disclosure controls and procedures;

the absence of undisclosed liabilities;

Actions Pending

the Merger

Conductaccuracy of Businessinformation supplied for inclusion in this joint proxy statement/prospectus and other similar documents;

the absence of certain changes or events;

litigation;

compliance with applicable laws and permits;

employee benefit plans;

employment and labor matters;

environmental matters;

tax matters;

material contracts;

insurance;

properties;

intellectual property;

state takeover laws;

the absence of a rights plan;

related party transactions;

compliance with anti-bribery laws;

rights-of-way;

oil and gas matters;

derivative transactions;

regulatory matters;

finders or brokers; and

the receipt of their respective financial advisors’ opinions.

Additional representations and warranties were made only by Pioneer Southwestas to its ownership of Parsley Class A common stock and Pioneer Southwest GPactivities of Merger Sub Inc., Merger Sub LLC and Opco Merger Sub.

From the date ofThe representations and warranties described above and included in the merger agreement untilwere made by each of Pioneer and Parsley to the earlierother. These representations and warranties were made as of specific dates, may be subject to important qualifications and limitations agreed to by Pioneer and Parsley in connection with negotiating the effective time and the terminationterms of the merger agreement, and except (i) as expressly contemplated or permitted bymay have been included in the merger agreement (ii)for the purpose of allocating risk between Pioneer and Parsley rather than to establish matters as mayfacts.

The merger agreement is described in and included as Annex A to this joint proxy statement/prospectus only to provide you with information regarding its terms and conditions, and not to provide any other factual information regarding Pioneer, Parsley or their respective businesses. Accordingly, the representations and warranties and other provisions of the merger agreement should not be required by applicable law, or (iii)read alone, but instead should be read only in conjunction with the prior written consent of Pioneer (which consent may not be unreasonably withheld, delayed or conditioned), Pioneer Southwestinformation provided elsewhere in this joint proxy statement/prospectus and Pioneer Southwest GP will not, and will cause each of their respective subsidiaries not to, and neither Pioneer nor Pioneer USA will cause Pioneer Southwest or Pioneer Southwest GP to:

conduct its business and the business of its subsidiaries other than in the ordinary and usual course, except that could not reasonably be expected to havedocuments incorporated by reference into this joint proxy statement/prospectus. See “Where You Can Find More Information.”

Definition of Material Adverse Effect

In determining whether a material adverse effect has occurred or is reasonably likely to occur with respect to Pioneer Southwest; (please read “The Merger Agreement — Representationsor Parsley, the parties will disregard effects resulting from:

1.

changes in conditions or developments generally applicable to the oil and gas exploration, development or production industry in the United States or any area or areas where the assets of such person or any of its subsidiaries are located, including any increase in operating costs or capital expenses or any reduction in drilling activity or production, or changes in law or regulation affecting such industry;

2.

general economic or political conditions or securities, credit, financial or other capital markets conditions (or changes in such conditions), including changes generally in supply, demand, price levels, interest rates, changes in the price of any commodity (including hydrocarbons) or general market prices, changes in the cost of fuel, sand or proppants and changes in exchange rates, in each case in the United States or any foreign jurisdiction;

3.

any failure, in and of itself, by such person to meet any internal or published projections, forecasts, estimates or predictions in respect of revenues, earnings, production or other financial or operating metrics for any period (although the events, changes, circumstances, occurrences or effects giving rise to or contributing to such failure may count as a material adverse effect);

4.

the execution and delivery of the merger agreement;

5.

the public announcement of the mergers and the other transactions contemplated by the merger agreement, including the impact thereof on relationships, contractual or otherwise with employees, labor unions, customers, suppliers or partners;

6.

any change, in and of itself, in the market price or trading volume of such party’s securities (although the events, changes, circumstances, occurrences or effects giving rise to or contributing to such change may count as a material adverse effect);

7.

any change in applicable law, the accounting standards promulgated by the Council of Petroleum Accountants Society or GAAP (or authoritative interpretation thereof);

8.

geopolitical conditions (or changes in such conditions), the outbreak or escalation of hostilities, any acts of war, sabotage or terrorism, or any escalation or worsening of any such acts of war, sabotage or terrorism;

9.

any epidemic, pandemic, disease outbreak (including the COVID-19 virus) or other public health crisis or public health event (or the worsening thereof);

10.

any disruption in the purchase or transportation of crude oil or natural gas produced or otherwise sold as a result of any shutdown, interruption or declaration of force majeure by any pipeline operator or other purchaser of such products;

11.

natural declines in well performance or reclassification or recalculation of reserves in the ordinary course of business;

12.

seasonal reductions in revenues and/or earnings in the ordinary course of their respective businesses;

13.

any actions taken or omitted to be taken at the written direction of the other party (which does not include actions or omissions for which a party sought or requested, and the other party provided consent); or

14.

compliance with the terms of, or the taking of any action expressly required by, the merger agreement (except for any obligation to operate in the ordinary course of business or similar obligation).

However, the exceptions laid out in (1), (2), (7), (8) and Warranties” for a summary(9) may be considered to the extent disproportionately affecting Pioneer or Parsley relative to other similarly situated companies in the oil and gas exploration, development and production industry in the geographic areas in which that party and its subsidiaries operate.

Conduct of Business

Each of Pioneer and Parsley has undertaken customary covenants that place restrictions on it and its subsidiaries until the effective time or, if earlier, termination of the definitionmerger agreement. Each of “material adverse effect”Pioneer and Parsley has agreed to operate its business only in the merger agreement);

failordinary course of business, and Parsley has also agreed to use commercially reasonable efforts to preserve substantially intact its business organization, substantially preserve its assets, rights and properties in good repair and condition, keep available in all material respects the services of its current officers, employees and consultants and preserve its goodwill and assets and maintain its rights, franchises and existing relationsrelationships with material customers, suppliers, employeeslicensors, licensees, distributors and others with whom it has material business associates, exceptdealings.

Parsley has also agreed that, could not reasonablywith certain exceptions as may be expected to have a material adverse effect with respect to Pioneer Southwest;

take any action that could reasonably be expected to have a material adverse effect onrequired by law or the ability of any partymerger agreement or as set forth in disclosure schedules to the merger agreement, to obtain approvals required for the merger transactions;

(i) issue, sell or otherwiseand except with Pioneer’s prior written consent, Parsley will not, and will not permit to become outstanding, or authorize the creation of, any additional equity or any additional (a) options, warrants, preemptive rights, subscriptions, calls or other rights, convertible securities, exchangeable securities, agreements or commitments of any character obligating such person (or the general partner of such person) to issue, transfer or sell any partnership or other equity interest of such person or any of its subsidiaries to undertake the following actions, among other things:

(a) declare, set aside or pay any securities convertible intodividends on, or exchangeable for such partnership interestsmake any other distributions (whether in cash, stock or property) in respect of, any of its capital stock or other equity interests, except (1) quarterly cash dividends on the shares of Parsley Class A common stock not to exceed $0.05 per share and corresponding cash distributions by Parsley LLC on the Parsley LLC units not to exceed $0.05 per Parsley LLC unit, in each case with customary record and payment dates, (2) dividends by a wholly-owned subsidiary of Parsley or wholly-owned subsidiary of Parsley LLC to its parent or parents or (3) any “tax related distribution” pursuant to the operating agreement of Parsley LLC; (b) contractual obligations of such person (or the general partner of such person) to repurchase,purchase, redeem or otherwise acquire any partnership interestshares of capital stock or other equity interest in such personinterests of Parsley or any of its subsidiaries or any options, warrants, or rights to acquire any such securitiesshares or agreements listed above (collectively, “Rights”) (other than pursuant to Rights outstanding as of the date of the merger agreement or issued thereafter not in violation of the merger agreement), (ii) enter into any agreement with respect to the foregoing, or (iii) permit any additionalother equity interests to become subject to new grants of restricted units, phantom units, employee unit options, unit appreciation rights or any similar equity-based employee Rights;

(i)(c) split, combine, reclassify or reclassifyotherwise amend the terms of any of its capital stock or other equity interests or issue or authorize or propose the issuance of any other securities in respect of, in lieu of or in substitution for shares of its capital stock or other equity interests, other than, in each case, in respect of (i) an exchange of Parsley LLC units (together with the same number of shares of Parsley Class B common stock) in accordance with the organizational documents of Parsley and Parsley LLC or (ii) repurchase, redeemany Parsley time-based restricted stock unit awards, performance-based restricted stock unit awards, time-based restricted stock awards or performance-based restricted stock awards issued and outstanding on October 16, 2020, or issued thereafter in accordance with the merger agreement, in accordance with their terms;

issue, deliver, sell, grant, pledge or otherwise acquire,encumber or permitsubject to any lien (other than any certain permitted liens) any shares of its subsidiaries to purchase, redeem or otherwise acquire, any partnershipcapital stock or other equity interests or Rights, exceptany securities convertible into, or exchangeable for netor exercisable for any such shares or other equity interests, or any rights, warrants or options to acquire, any such shares or other equity interests, or any stock appreciation rights, “phantom” stock rights, performance units, rights to receive shares of capital stock of Parsley on a deferred basis or other rights linked to the value of shares of Parsley common stock, other than the issuance of shares of Parsley Class A common stock (1) upon the settlement of Parsley time-based restricted stock unit settlements made in connection with the vesting ofawards or performance-based restricted units or as required by the terms of its securitiesstock unit awards issued and outstanding on the date ofOctober 16, 2020, or issued thereafter in accordance with the merger agreement, in accordance with their terms, (2) an exchange of Parsley LLC units (together with the same number of shares of Parsley Class B common stock) in accordance with the organizational documents of Parsley and Parsley LLC, or (3) issued as contemplated by any existing compensation and benefit plan;a dividend made in accordance with the merger agreement;

 

(i)

amend or otherwise change the organizational documents of Parsley or Parsley LLC;

directly or indirectly acquire or agree to acquire, by merging or consolidating with, purchasing a substantial equity interest in or a substantial portion of the assets of, making an investment in or loan or capital contribution to or in any other manner, any corporation, partnership, association or other business organization or division thereof or any assets that are otherwise material to Parsley and its subsidiaries, in each case other than (1) upon reasonable prior notice to and consultation with Pioneer,

the exchange or swap of oil and gas properties or other assets in the ordinary course of business consistent with past practice (other than the exchange or swap of any oil and gas properties or other assets located directly adjacent to any oil and gas properties of Pioneer), (2) transactions solely between Parsley and Parsley LLC, solely between Parsley or Parsley LLC and a wholly-owned subsidiary of Parsley or Parsley LLC, or solely among wholly-owned subsidiaries of Parsley or Parsley LLC or (3) acquisitions as to which the aggregate amount of the consideration paid or transferred by Parsley and its subsidiaries in connection with all such acquisitions would not exceed $25 million;

directly or indirectly (including by merger or consolidation) sell, lease, swap, exchange, farmout, license, sell and leaseback, abandon, mortgage or otherwise encumber or subject to any lien (other than certain permitted liens) or otherwise dispose in whole or in part of any of its material properties, assets or discontinue allrights or any portioninterest therein, in each case other than (1) upon reasonable prior notice to and consultation with Pioneer, the exchange or swap of itsoil and gas properties or other assets business or properties other than in the ordinary course of business including distributions permitted underconsistent with past practice (other than the merger agreement, (ii) acquire, by mergerexchange or swap of any oil and gas properties or other assets located directly adjacent to any oil and gas properties of Pioneer), (2) sales, leases, exchanges, swaps or dispositions for which the consideration is less than $25 million in the aggregate, (3) the sale of hydrocarbons in the ordinary course of business consistent with past practice, or (4) the sale or other disposition of equipment that is surplus, obsolete or replaced made in the ordinary course of business consistent with past practice;

adopt or enter into a plan of complete or partial liquidation, dissolution, restructuring, recapitalization or other reorganization, other than transactions among wholly-owned subsidiaries of Parsley or Parsley LLC;

incur, create, assume or otherwise become liable for, or leaserepay or prepay, or amend, modify or refinance any indebtedness, other than (1) indebtedness incurred in the ordinary course of business consistent with past practice, (2) indebtedness incurred by Parsley that is owed to Parsley LLC or any wholly-owned subsidiary of Parsley or Parsley LLC or by any subsidiary of Parsley that is owed to Parsley or Parsley LLC or any wholly-owned subsidiary of Parsley or Parsley LLC, (3) guarantees by Parsley of Indebtedness of Parsley LLC or any wholly-owned subsidiary of Parsley or Parsley LLC and guarantees by any subsidiary of Parsley of indebtedness of Parsley, Parsley LLC or any other wholly-owned subsidiary of Parsley or Parsley LLC, (4) indebtedness incurred under Parsley’s revolving credit facility in the ordinary course of business consistent with past practice or (5) indebtedness in an amount not to exceed $10 million in the aggregate;

make any loans, advances or capital contributions to, or investments in, any other person, other than (1) Parsley, Parsley LLC or any direct or indirect wholly-owned subsidiary of Parsley or Parsley LLC, (2) advances for expenses required under customary joint operating agreements to operators of oil and gas properties of Parsley or any of its subsidiaries or (3) advances for reimbursable employee expenses in the ordinary course of business consistent with past practice;

incur or commit to incur any capital expenditures or authorizations or commitments with respect thereto that in the aggregate are in excess of 105% of the aggregate amount provided for in a specified capital expenditure budget, other than (1) capital expenditures to repair damage resulting from insured casualty events or required on an emergency basis or for the safety of individuals, assets or all or any portion of the business or propertyenvironment (provided that Parsley notifies Pioneer of any such emergency expenditure as soon as reasonably practicable) and (2) operations proposed by third parties under joint operating agreements, joint development agreements and other entity similar agreements;

(1) pay, discharge, settle or satisfy any claims, liabilities or obligations (whether absolute, accrued, asserted or unasserted, contingent or otherwise), other than the payment, discharge or satisfaction in the ordinary course of business consistent with past practice or as required by their terms of claims, liabilities or obligations reflected or reserved against in the most recent financial statements (or the notes thereto) of Parsley included in documents filed by Parsley with the SEC prior to October 20, 2020 (for amounts not in excess of such reserves) or incurred since the date of such financial

statements in the ordinary course of business consistent with past practice, (2) cancel any indebtedness owed to Parsley or any of its subsidiaries with a principal amount in excess of $3 million or (3) waive or release any right held by Parsley or any of its subsidiaries with a value in excess of $3 million;

other than in the ordinary course of business consistent with past practice, (iii) merge, consolidate(1) affirmatively waive, release, or assign any material rights or claims under any material contract, which waiver, release or assignment would reasonably be expected to have, individually or in the aggregate, a material adverse effect on Parsley, (2) modify, amend, terminate or cancel or affirmatively renew or affirmatively extend any material contract (other than intercompany transactions, agreements or arrangements or commodity hedging contracts and other than any modification, termination or renewal that would not reasonably be expected to have, individually or in the aggregate, a material adverse effect on Parsley) or (3) enter into any other business combination transactioncontract (other than commodity hedging contracts or contracts entered into or in connection with any person,action taken in compliance with or (iv) convert frompermitted under the merger agreement) that if in effect on October 20, 2020 would be a limited partnership or limited liability company, as the case may be, to any other business entity;material contract of Parsley;

 

make

compromise, settle or declareagree to settle any dividends or distributions (i) to the holders of Pioneer Southwest common unitsaction other than a regular quarterly distributioncompromises, settlements or agreements in a cash amountthe ordinary course of business consistent with past practice that involve only the payment of money damages (to the extent not covered by insurance) not in excess of $0.52 per Pioneer Southwest common unit to be declared and paid on$3 million individually or prior to 45 days after$5 million in the end of each calendar quarter, the record date for which is prior to the effective time of the merger, consistent with past practice, or (ii) to the holders ofaggregate, in any other units of or interests in Pioneer Southwest, other than distributions in respect of the general partner interest in Pioneer Southwest concurrently with distributions in respect of Pioneer Southwest common units;

amend Pioneer Southwest’s partnership agreement or the limited liability company agreement of Pioneer Southwest GP;

exceptcase as would not preventresult in any restriction on future activity or materially delayconduct of, or the consummationadmission of wrongdoing by, Parsley and compromises, settlements or agreements permitted by the stockholder litigation covenant in the merger or other transactions contemplated by the merger agreement past the March 17, 2014, termination date and as would not be materially adverse to Pioneer Southwest and its subsidiaries, taken as a whole, or Pioneer and its subsidiaries, taken as a whole, enter into any material contract;agreement;

 

modify, amend, terminate

change its financial accounting methods, principles or assign,practices (other than any change for tax purposes) or waive or assign any rights under any material contract in any material respect in a manner which is materially adverse to Pioneer Southwest and its subsidiaries, taken as a whole, or Pioneer and its subsidiaries, taken as a whole, or which could prevent or materially delay the consummation of the merger or the other transactions contemplated by the merger agreement past the March 17, 2014, termination date;

waive, release, assign, settle or compromise any claim, action or proceeding, including any state or federal regulatory proceeding, seeking damages or injunction or other equitable relief, that (i) is material to Pioneer Southwest and its subsidiaries taken as a whole, or (ii) is a claim, action or proceeding relating to the merger transactions or the merger agreement;

implement or adopt any material change in its accounting principles, practices or methods, other than as may be required by U.S. generally accepted accounting principles;

fail to use commercially reasonable efforts to maintain, with financially responsible insurance companies, insurance in such amounts and against such risks and losses as is maintained by it at present;

change in any material respectrevalue any of its express or deemed elections relating to taxes, including elections for any and all joint ventures, partnerships, limited liability companies or other investments where it has the capacity to make such binding election;

settle or compromise any material claim, action, suit, litigation, proceeding, arbitration, investigation, audit or controversy relating to taxes;

changeassets, in any material respect any of its methods of reporting income or deductions for U.S. federal income tax purposes from those employed in the preparation of its U.S. federal income tax return for the most recent taxable year for which a return has been filed,each case except as may be required by applicable law;GAAP;

 

(i) adopt,

(1) settle or compromise any material tax proceeding; (2) file any material amended tax return or claim for a material tax refund; (3) make, revoke or modify any material tax election; (4) except to the extent otherwise required by applicable law, file any material tax return other than on a basis consistent with past practice; (5) consent to any extension or waiver of the limitation period applicable to any material claim or assessment in respect of material taxes; (6) grant any power of attorney with respect to material taxes; (7) enter into amendany material tax allocation, sharing or otherwise increase, or accelerate the payment or vesting of the amounts, benefits or rights payable or accrued or to become payable or accrued under,indemnity agreement, any compensation and benefit plan, (ii) grant any severance or termination pay to any officer or director of Pioneer Southwest GP or Pioneer Southwestmaterial tax holiday agreement, or any material closing or other similar agreement with respect to taxes; or (8) change any material method of their subsidiaries, or (iii) establish, adopt, enter into or amend any plan, policy, program or arrangementaccounting for the benefit oftax purposes;

change its fiscal year;

(1) grant any current or former director, officer, employee or independent contractor any increase in compensation, bonus or other benefits, or approve any grant of any type of compensation or benefits to any director, officer, employee or independent contractor not previously receiving or entitled to receive such type of compensation or benefit, or pay any bonus of any kind or amount to any such individual, other than (x) increases in base salary and wages in the ordinary course of business consistent with past practice for directors, officers, employees or officersindependent contractors with less than $100,000 in annual compensation and (y) grants of Pioneer Southwest GPcompensation in the ordinary course of business consistent with past practice to, and participation in Parsley benefit plans as in effect on October 20, 2020 for, individuals hired thereafter in accordance with the merger agreement, (2) grant or Pioneer Southwestpay to any current or former director, officer, employee or independent contractor any equity-based award or any severance, change in control or termination pay, or approve any modifications thereto or increases thereto (other than pursuant to the terms of their subsidiariesany written agreement or other Parsley benefit plan as in effect as of October 20, 2020), (3) adopt or enter into any collective bargaining agreement or other labor union contract, (4) take any action to accelerate the vesting, funding or payment of any compensation or benefit under any Parsley benefit plans or any of their beneficiaries;employment agreement or other similar contract or (5) adopt any new employee benefit or compensation plan or arrangement or materially amend, modify or terminate any existing Parsley benefit plan other than as required by applicable law;

 

hire any employees at the executive level or higher or, other than in the ordinary course of business consistent with past practice, (i) incur, assume, guarantee or otherwise become liable for any indebtedness (directly, contingently or otherwise),other employees, in each case other than borrowings under existing revolving credit facilities, or (ii) createto replace any lien on its property or the property of its subsidiaries to secure indebtedness;such

authorize, recommend, propose or announce an intention to adopt a plan of complete or partial dissolution or liquidation;

knowingly take any action that is intended or is reasonably likely to result in (i) any of its representations and warranties in the merger agreement being or becoming untrue in any material respect at the closing date, (ii) any of the conditions to closing not being satisfied, (iii) any material delay or prevention of the consummation of the merger, or (iv) a material violation of any provision of the merger agreement; or

agree or commit to do any of the prohibited actions described above.

Conduct of Business by Pioneer and Pioneer USA

From the date of the merger agreement until the earlier of the effective time and the termination of the merger agreement, and except (i) as expressly contemplated or permitted by the merger agreement, (ii) as may be required by applicable law, or (iii) with the prior written consent of the Pioneer Southwest Conflicts Committee (which consent may not be unreasonably withheld, delayed or conditioned), Pioneer and Pioneer USA will not, and will cause each of their respective subsidiaries not to:

conduct its business and the business of its subsidiaries other than in the ordinary and usual course, except that could not reasonably be expected to have a material adverse effect with respect to Pioneer;

fail to use commercially reasonable efforts to preserve intact its business organizations, goodwill and assets and maintain its rights, franchises and existing relations with customers, suppliers, employees or business associates, except that could not reasonably be expected to have a material adverse effect with respect to Pioneer;

take any action that could reasonably be expected to have a material adverse effect on the ability of any party to the merger agreement to obtain any approvals required for the merger transactions;

except as would not be likely to have a material adverse effect on Pioneer, enter into any material contract;

modify, amend, terminate or assign, or waive or assign any rights under any material contract in a manner which would be likely to have a material adverse effect on Pioneer;

waive, release, assign, settle or compromise any claim, action or proceeding, including any state or federal regulatory proceeding seeking damages or injunction or other equitable relief, that would be reasonably expected to have a material adverse effect on Pioneer;

implement or adopt any material change in its accounting principles, practices or methods, other than as may be required by U.S. generally accepted accounting principles;

fail to use commercially reasonable efforts to maintain, with financially responsible insurance companies, insurance in such amounts and against such risks and losses as has been customarily maintained by it in the past;

authorize, recommend, propose or announce an intention to adopt a plan of complete or partial dissolution or liquidation;

knowingly take any action that is intended or is reasonably likely to result in (i) any of its representations and warranties in the merger agreement being or becoming untrue in any material respect at the closing date, (ii) any of the conditions to closing not being satisfied, or (iii) a material violation of any provision of the merger agreement;

sell, transfer or otherwise dispose of any Pioneer Southwest common units, Pioneer Southwest general partner units or other interests in Pioneer Southwest; or

agree or commit to do any of the prohibited actions described above.

Conditions to the Merger

Conditions of Each Party

The respective obligations of the parties to effect the merger are subject to the satisfaction or, if applicable, waiver, on or prior to the closing date of the merger, of each of the following conditions:

the merger proposal will have been approved by the affirmative vote at the Pioneer Southwest special meeting of holders, as of the record date for the Pioneer Southwest special meeting, of a majority of the outstanding Pioneer Southwest common units;

all filings required to be made prior to the effective time with, and all other consents, approvals, permits and authorizations required to be obtained prior to the effective time from, any governmental authority in connection with the execution and delivery of the merger agreement and the consummation of the merger transactions by the parties or their affiliates will have been made or obtained, except where the failure to obtain such consents, approvals, permits and authorizations could not be reasonably likely to result in a material adverse effect on Pioneer or Pioneer Southwest; provided, however, that prior to invoking this condition, the invoking party must have used its commercially reasonable efforts to make all required filings and to obtain all required consents, approvals, permits and authorizations as required under the merger agreement;

no order, decree or injunction of any court or agency of competent jurisdiction will be in effect, and no law will have been enacted or adopted, that enjoins, prohibits or makes illegal the consummation of any of the merger transactions, and no action, proceeding or investigation by any governmental authority with respect to the merger or the other merger transactions may be pending that seeks to restrain, enjoin, prohibit or delay the consummation of the merger or such other merger transaction or to impose any material restrictions or requirements thereon or on Pioneer or Pioneer Southwest with

 

respect to the merger transactions; provided, however, thatemployee or executive whose employment has terminated prior to invoking this condition, the invoking party must have used its commercially reasonable efforts in good faith to consummate the mergerOctober 20, 2020 or as requiredotherwise permitted under the merger agreement;

 

terminate any director, officer, employee or independent contractor with more than $100,000 in annual compensation or otherwise cause any such individual to resign, in each case other than in the registration statementordinary course of which this proxy statement/prospectus is a part will have become effective underbusiness consistent with past practice or for cause or poor performance (documented in accordance with Parsley’s past practices);

fail to keep in force in all material respects all material insurance policies or replacement or revised provisions regarding material insurance coverage with respect to the Securities Actassets, operations and no stop order suspendingactivities of Parsley and its subsidiaries as currently in effect, to the effectivenessextent commercially reasonable in Parsley’s business judgment in light of prevailing conditions in the insurance market;

renew or enter into any non-compete, exclusivity, non-solicitation or similar agreement that would restrict or limit, in any material respect, the operations of Parsley or any of its subsidiaries;

enter into any new line of business outside of its existing business;

enter into any new lease or amend the terms of any existing lease of real property that would require payments over the remaining term of such lease in excess of $2 million (excluding, for the avoidance of doubt, all oil and gas leases and rights-of-way);

take any action (or omit to take any action) if such action (or omission) would reasonably be expected to cause any of the registration statement may have been issued and no proceedings for that purpose may have been initiated or threatenedconditions to closing of the mergers not being satisfied by the SEC; andoutside date; or

 

authorize, commit, resolve or agree to take any of the actions prohibited by the preceding bullet points.

Pioneer has also agreed that, with certain exceptions as may be required by law or the merger agreement or as set forth in the disclosure schedules to the merger agreement, and except with Parsley’s prior written consent, Pioneer will not, and will not permit any of its subsidiaries to undertake the following actions, among other things:

declare, set aside or pay any dividends on, or make any other distributions (whether in cash, stock or property) in respect of, any of its capital stock or other equity interests, except (1) quarterly cash dividends on the shares of Pioneer common stock not to be issued in the merger will have been approved for listing on the NYSE, subject to official notice of issuance;

Additional Conditions to the Obligations of Pioneer

The obligationexceed $0.55 per share, with customary record and payment dates, and (2) dividends by a wholly-owned subsidiary of Pioneer to effect the merger is further subjectits parent or parents;

issue, deliver, sell or grant any shares of its capital stock or other equity interests or any securities convertible into, or exchangeable for or exercisable for any such shares or other equity interests, or any rights, warrants or options to acquire, any such shares or other equity interests, or any stock appreciation rights, “phantom” stock rights, performance units, rights to receive shares of capital stock of Pioneer on a deferred basis or other rights linked to the satisfaction byvalue of shares of Pioneer Southwest, oncommon stock, other than (1) the grant of Pioneer time-based restricted stock unit awards, performance-based restricted stock unit awards, restricted stock awards or priorstock options pursuant to the closing dateterms of a Pioneer benefit plan in the ordinary course of business consistent with past practice or the issuance of shares of Pioneer common stock upon the settlement of Pioneer time-based restricted stock unit awards, performance-based restricted stock unit awards, restricted stock awards, stock options or convertible notes issued and outstanding on October 20, 2020 or issued thereafter in accordance with their terms and the terms of the merger of each of the following conditions,agreement, or the waiver thereof by Pioneer:

each of the representations and warranties containedissued as a dividend made in accordance with the merger agreement, or (2) issuances of Pioneer Southwestcommon stock through any public or private offering or other transaction of up to an aggregate of 10% of the shares of Pioneer common stock issued and outstanding as of October 20, 2020;

amend or otherwise change the organizational documents of Pioneer, Southwest GP qualified asMerger Sub Inc., Merger Sub LLC or Opco Merger Sub in a manner that could reasonably be expected to materialityadversely affect the consummation of the transactions contemplated by the merger agreement or adversely affect in any material adverse effect must be truerespect the rights of holders of Pioneer common stock;

directly or indirectly acquire or agree to acquire, by merging or consolidating with, purchasing a substantial equity interest in or a substantial portion of the assets of, making an investment in or loan or capital contribution to or in any other manner, any corporation, partnership, association or other business organization or division thereof or any assets that are otherwise material to Pioneer and correct in all respects and those not so qualified must be true and correct in all material respects,its subsidiaries, in each case other than (1) the acquisition, lease, transfer, exchange or swap of oil and gas properties or other assets in the ordinary course of business consistent with past practice, (2) transactions solely between Pioneer and its wholly-owned subsidiaries or solely among wholly-owned subsidiaries of Pioneer or (3) acquisitions as to which the aggregate amount of the consideration paid or transferred by Pioneer and its subsidiaries would not exceed $1 billion in the aggregate, the aggregate amount of the consideration paid or transferred by Pioneer and its subsidiaries in connection with all such acquisitions would not exceed $100 million in respect of assets located outside of the Permian Basin and the occurrence of which would not reasonably be expected to prevent, materially delay or materially impede the transactions contemplated by the merger agreement;

directly or indirectly (including by merger or consolidation) sell, lease, swap, exchange, farmout, license, sell and leaseback, abandon, mortgage or otherwise encumber or subject to any lien (other than certain permitted liens) or otherwise dispose in whole or in part of any of its material properties, assets or rights or any interest therein, in each case other than (1) sales, leases or dispositions for which the consideration is less than $500 million in the aggregate, (2) exchanges or swaps in the ordinary course of business consistent with past practice, (3) the sale of hydrocarbons in the ordinary course of business consistent with past practice, or (4) the sale or other disposition of equipment that is surplus, obsolete or replaced made in the ordinary course of business consistent with past practice;

adopt or enter into a plan of complete or partial liquidation, dissolution, restructuring, recapitalization or other reorganization, other than transactions among wholly-owned subsidiaries of Pioneer;

take any action (or omit to take any action) if such action (or omission) would reasonably be expected to cause any of the conditions to closing of the mergers not being satisfied by the outside date; or

authorize, commit, resolve or agree to take any of the actions prohibited by the preceding bullet points.

No Solicitation; Recommendations

Except as expressly permitted by the merger agreement, each of Pioneer and Parsley will, and will cause its subsidiaries and their respective directors and officers to, and will use reasonable best efforts to cause its employees, investment bankers, financial advisors, attorneys, accountants and other advisors, agents and representatives to:

immediately cease and terminate all existing discussions or negotiations with any person with respect to an acquisition proposal or potential acquisition proposal and immediately terminate all physical and electronic data room access previously granted to such other persons;

request the prompt return or destruction of all confidential information furnished with respect to any acquisition proposal or potential acquisition proposal during the six-month period prior to the date of the merger agreement to the extent such return or destruction had not previously been requested; and

not, directly or indirectly:

solicit, initiate, endorse, knowingly encourage or knowingly facilitate any inquiry, proposal or offer that constitutes an acquisition proposal, or any inquiry, proposal or offer that would reasonably be expected to lead to any acquisition proposal; or

enter into, continue or otherwise participate in any discussions or negotiations regarding, or furnish to any person any non-public information or data with respect to, or otherwise cooperate in any way with, any acquisition proposal.

Neither Pioneer nor Parsley (nor their respective boards of directors) is prohibited from, directly or indirectly through any representative, informing any person that Pioneer or Parsley, as applicable, is party to the merger agreement and uponinforming such person of the closing date“no solicitation” restrictions that are set forth in the merger agreement.

In addition, neither party will terminate, waive, amend, release or modify any provision of any confidentiality or standstill agreement to which it or any of its affiliates or representatives is a party with respect to any acquisition proposal or potential acquisition proposal. Each party will use commercially reasonable efforts to enforce the provisions of any such agreement, including seeking any injunctive relief available to enforce such agreement. Notwithstanding the foregoing, each party is permitted to grant waivers of, and not enforce, any standstill agreement solely to the extent that its board of directors determines in good faith, after consultation with its outside counsel, that failure to take such action would prohibit the counterparty from making an unsolicited acquisition proposal in compliance with the same effectmerger agreement and would constitute a breach of its fiduciary duties under applicable law.

Subject to certain exceptions discussed herein, the Pioneer board and the Parsley board shall not:

withdraw (or modify or qualify in any manner adverse to the other party) its recommendation, recommend or otherwise declare advisable the approval by the Pioneer stockholders or the Parsley stockholders, as though all such representations and warranties had been made on the closing date (in either case, except forapplicable, of any acquisition proposal, or publicly propose to take any such representationsactions (any action described in this bullet point being referred to as an “adverse recommendation change”); or

cause or permit Pioneer or Parsley, respectively, or any of their respective subsidiaries to enter into, or publicly declare advisable or publicly propose to enter into, any letter of intent, memorandum of understanding, agreement in principle, acquisition agreement, merger agreement, option agreement, joint venture agreement, partnership agreement or other contract (except for acceptable confidentiality agreements described below) (any such agreement being referred to as an “alternative acquisition agreement”), in each case constituting or related to any acquisition proposal.

Neither Pioneer nor Parsley is prohibited from taking and warranties made asdisclosing a position contemplated by Rule 14e-2(a), Rule 14d-9 or Item 1012(a) of Regulation M-A promulgated under the Exchange Act. However, any such disclosure (other than a specified date, in which case as“stop, look and listen” communication or similar communication of such date); provided, however, that no representations and warranties willthe type contemplated by Section 14d-9(f) under the Exchange Act) shall be deemed to be untrue or incorrect to the extent that any executive officer or director of Pioneer had knowledge of such inaccuracy as of the date ofan adverse recommendation change under the merger agreement; provided, further, however, thatagreement unless such party’s board of directors expressly reaffirms its recommendation in such disclosure and expressly rejects any applicable acquisition proposal.

Notwithstanding the immediately preceding proviso will not applyabove, if at any membertime prior to obtaining approval of the Pioneer Southwest Conflicts Committee had actual knowledge of any such inaccuracy as ofstock issuance proposal or the date of theParsley merger agreement;

each and all of the agreements and covenants of Pioneer Southwest and Pioneer Southwest GP to be performed and complied with pursuant to the merger agreement on or prior to the effective time must have been duly performed and complied with in all material respects;

Pioneer will have received a certificate signedproposal by the chief executive officer, chief financial officerPioneer stockholders or executive vice president and general counsel ofParsley stockholders, as applicable, Pioneer Southwest GP, dated as of the closing date, to the effect that the conditions described in the first two bullet points immediately above have been satisfied; and

there must not have occurredor Parsley receives a material adverse effect with respect to Pioneer Southwest between the signing of the merger agreement and the closing date.

Additional Conditions to the Obligations of Pioneer Southwest

The obligation of Pioneer Southwest to effect the merger is further subject to the satisfaction by Pioneer, on or prior to the closing date of the merger, of each of the following conditions, or the waiver thereof by Pioneer Southwest:

each of the representations and warranties contained in the merger agreement of Pioneer, Pioneer USA and MergerCo qualified as to materiality or material adverse effect must be true and correct in all respects and those not so qualified must be true and correct in all material respects, in each case, as of the date of the merger agreement and upon the closing date with the same effect as though all such representations and warranties had been made on the closing date (in either case, except forwritten acquisition proposal from any such representations and warranties made as of a specified date, in which case as of such date);

each and all of the agreements and covenants of Pioneer, Pioneer USA and MergerCo to be performed and complied with pursuant to the merger agreement on or prior to the closing date must have been duly performed and complied with in all material respects;

Pioneer Southwest must have received a certificate signed by the chief executive officer, chief financial officer or executive vice president and general counsel of Pioneer, dated as of the closing date, to the effect that the conditions described in the first two bullet points immediately above have been satisfied; and

there must not have occurred a material adverse effect with respect to Pioneer between the date of the merger agreement and the closing date.

The merger agreement providesperson that the Pioneer Southwest unitholder voting condition mayboard or the Parsley board, as applicable, determines in good faith to be bona fide and that did not be waived. Eachresult from a breach of Pioneersuch party’s non-solicitation obligations, the board of directors of such party determines in good faith (after consultation with its outside counsel and Pioneer Southwest (with the consent of the Pioneer Southwest Conflicts Committee, in the case of Pioneer Southwest) may choose to complete the merger even though any other condition to its obligation has not been satisfied if the necessary Pioneer Southwest unitholder approval has been obtained and the law allows it to do so.

Representations and Warranties

The merger agreement contains representations and warranties of the parties to the merger agreement. These representations and warranties concern, among other things:

legal organization, existence, general authority and good standing;

capitalization;

the absence of Pioneer Southwest’s ownership of any equity interests other than in its subsidiaries;

power and authorization to enter into and carry out the obligations of the merger agreement, and enforceability of the merger agreement;

the absence of defaults, breaches and other conflicts caused by entering into the merger agreement and completing the merger;

required board and committee consents and approvals;

the absence of required governmental consents and approvals, other than those noted therein;

the accuracy of financial statements and reports filed with the SEC;

the absence of undisclosed liabilities;

compliance with laws;

the absence of undisclosed material contracts and the validity of existing material contracts;

the absence of brokers other than those noted therein;

the fairness opinion delivered to the Pioneer Southwest Conflicts Committee; and

the absence of any material adverse effects.

For purposes of the merger agreement, “material adverse effect,” when used with respect to either Pioneer Southwestadvisor) that such acquisition proposal constitutes or Pioneer, as the case may be, means any state of facts, change, development, condition, occurrence or other effect that:

is or couldwould reasonably be expected to be material and adverselead to the financial condition, assets, properties, business, operations, results of operations or prospects ofa superior proposal with respect to such party or its subsidiaries, taken as a whole; or

materially impairs or delays, or could reasonably be expected to materially impair or delay, the ability of such party to perform its obligations under the merger agreement or to consummate the merger and the other merger transactions.

Many of the representations and warranties in the merger agreement provide that such representation and warranty does not extendfailure to matters where the failure of the representation and warranty to be accurate would not result in a material adverse effect on the party making the representation and warranty. A material adverse effect does not includetake any of the following:below actions would be inconsistent with its fiduciary duties to such party’s stockholders under applicable law, then such party may, directly or indirectly:

 

changes generally affecting the economy in the United States of America;

changes in oil and gas prices, including changes in price differentials;

changes in general economic conditions in the oil and gas exploration and production industry;

changes in law;

earthquakes, hurricanes, floods or other natural disasters, except if the state of facts, change, development, condition, occurrence or other effect described in this and the above bullet points, relativefurnish information with respect to other participants of similar size in the oil and gas exploration and production industry generally, disproportionately affects the financial condition, assets, properties, business, results of operations or prospects of such party and its subsidiaries taken asto the person that made the proposal, pursuant to a whole;customary confidentiality agreement containing confidentiality terms substantially similar to, and no less favorable in the aggregate to such party than, the confidentiality agreement with the other party (an “acceptable confidentiality agreement”), provided that an unredacted copy of such acceptable confidentiality agreement is provided to the other party and any non-public information so provided is concurrently or has previously been provided to the other party; and

 

changes resulting from

participate in discussions or negotiations with the announcementperson making such acquisition proposal and its representatives and potential sources of financing regarding the acquisition proposal or take any other action that would be restricted by the merger agreement; oragreement.

changes in the market price or trading volume

Each of Pioneer Southwest common units or sharesand Parsley will, within the longer of Pioneer common stock, respectively (exceptone business day and 48 hours of receipt, notify the other party of any acquisition proposal (or any indication that a person is considering making an acquisition proposal) and the underlying causesmaterial terms and conditions thereof and will keep the other party reasonably informed on a timely basis regarding the status and details of any such changes may be considered in determining whether a material adverse effect has occurred).

Covenantsacquisition proposal. Neither party will enter into any confidentiality agreement that would restrict it from complying with its non-solicitation obligations under the merger agreement.

Each of Pioneer and Parsley may at any time prior to obtaining approval of the Pioneer Southwest madestock issuance proposal or the covenantsParsley merger proposal by the Pioneer stockholders or Parsley stockholders, as applicable, take any of the actions described below:above constituting an adverse recommendation change or, with respect to Parsley, terminate the merger agreement, in each case in response to a superior proposal if:

Efforts

Subjectsuch party provides the other party with at least four business days’ prior written notice of its intention to take such action, specifying its reasons for doing so (including the terms and conditions of, and the identity of the person making, the superior proposal) and furnishing a copy (if any) of the proposed alternative acquisition agreement and any other relevant transaction documents;

such party has negotiated, and caused its financial and legal advisors to negotiate, with the other party in good faith during such notice period regarding any revisions proposed by the other party to the terms of the transactions contemplated by the merger agreement;

following the end of such notice period, the board of directors of such party considers any adjusted terms and conditions of the merger agreement proposed by the parties will use their commercially reasonable effortsother party and determines in good faith, (subjectafter consultation with its outside counsel and its financial advisors, that the superior proposal continues to be a superior proposal and the failure to make an adverse recommendation change or, with respect to Parsley, terminate the merger agreement to accept the superior proposal would be inconsistent with its fiduciary duties under applicable law; and

in the event of any amendment to the financial terms or any other material amendment to any material term of the superior proposal, such party shall have given the other party notice of such amendment and a new notice period of two business days.

Additionally, notwithstanding anything to the contrary set forth above, at any time prior to obtaining approval of the Pioneer stock issuance proposal or the Parsley merger proposal by the Pioneer stockholders or Parsley stockholders, as applicable, Pioneer or Parsley may take any of the actions described above constituting an adverse recommendation change in response to an “intervening event” if the board of directors of such party has determined in good faith after consultation with its outside counsel that the failure to take such action would be inconsistent with its fiduciary duties under applicable law, provided that prior to taking any such action, such party provides the other party with at least four business days’ prior written notice of its intention to take such action, specifying the reasons therefor and describing in reasonable detail such intervening event, and such party has negotiated, and caused its financial and legal advisors to negotiate, in good faith with the other party during such notice period regarding any revisions proposed by the other party to the terms of the transactions contemplated by the merger agreement.

Notwithstanding the foregoing, none of Pioneer, Parsley or their respective subsidiaries may enter into any alternative acquisition agreement unless the merger agreement has been terminated in accordance with its terms (including the payment of any applicable laws)termination fees).

An “acquisition proposal” means, with respect to Pioneer or Parsley, any proposal or offer with respect to any direct or indirect acquisition or purchase or license, in one transaction or a series of transactions, and whether through any merger, reorganization, consolidation, tender offer, self-tender, exchange offer, stock acquisition, asset acquisition, binding share exchange, business combination, recapitalization, liquidation, dissolution, joint venture, licensing or similar transaction, or otherwise, of:

20% or more of the consolidated assets of such party (based on the fair market value thereof);

the assets of such party and its subsidiaries accounting for 20% or more of consolidated EBITDA of such party during the prior 12 months; or

20% or more of the capital stock or voting power of such party or any of its subsidiaries, in each case other than the transactions contemplated by the merger agreement.

A “superior proposal” means, with respect to Pioneer or Parsley, any bona fide written acquisition proposal that:

if consummated would result in a third party acquiring, directly or indirectly, 50% or more of the consolidated assets of such party (based on the fair market value thereof), the assets of such party and its subsidiaries accounting for 50% or more of consolidated EBITDA of such party during the prior 12 months or 50% or more of the capital stock or voting power of such party or any of its subsidiaries, in each case other than the transactions contemplated by the merger agreement;

is not solicited in breach of such party’s non-solicitation obligations under the merger agreement;

such party’s board of directors determines in good faith (after consultation with outside counsel and its financial advisor), taking into account all legal, financial, regulatory and other aspects of the proposal, including the terms of any financing or financing contingencies and the likely timing of closing, and the person making the proposal, is more favorable to the stockholders of such party from a financial point of view than the transactions contemplated by the merger agreement (including any adjustment to the terms and conditions proposed by the other party in response to such proposal) and would reasonably be expected to be completed on the terms proposed.

An “intervening event” is a material event or circumstance that, with respect to Pioneer or Parsley:

was not known or reasonably foreseeable to the board of directors of such party prior to the date of the merger agreement or, if known, the consequences of which were not known or reasonably foreseeable;

becomes known (or, if already known, the material consequences of which become known) by the board of directors of such party prior to the receipt of stockholder approval from such party’s stockholders; and

does not relate to an acquisition proposal involving such party or any changes in the price of Pioneer common stock or Parsley Class A common stock (although the underlying facts giving rise to or contributing to any such change in price may be taken into account to the extent otherwise permitted by this definition).

Efforts to Hold the Pioneer and Parsley Special Meetings

Pioneer Special Meeting

Pioneer has agreed to duly call, give notice of, convene and hold a meeting of its stockholders for the purpose of obtaining the approval of the Pioneer stock issuance proposal by Pioneer stockholders as promptly as practicable after the registration statement, of which this joint proxy statement/prospectus forms a part, is declared effective by the SEC (which meeting shall in any event be within 45 days thereof). Except as permitted in the merger agreement, the Pioneer board must recommend that the stockholders of Pioneer vote in favor of the Pioneer stock issuance proposal at the Pioneer special meeting and this joint proxy statement/prospectus is required to include such recommendation of the Pioneer board.

Pioneer may postpone or adjourn the Pioneer special meeting (i) with the prior written consent of Parsley, (ii) due to the absence of a quorum or if Pioneer has not received proxies representing a sufficient number of shares of Pioneer common stock to obtain the approval of the Pioneer stock issuance proposal, whether or not a quorum is present, to solicit additional proxies, or (iii) to allow reasonable additional time for the filing and mailing of any supplemental or amended disclosure that the Pioneer board has determined in good faith after

consultation with outside legal counsel is necessary under applicable law and for such supplemental or amended disclosure to be disseminated and reviewed by Pioneer stockholders prior to the Pioneer special meeting. However, Pioneer may not postpone or adjourn the Pioneer special meeting more than a total of two times for the circumstances described in (ii).

In addition, Pioneer will be required, at the request of Parsley, to the extent permitted by law, to adjourn the Pioneer special meeting to a date specified by Parsley for the absence of a quorum or if Pioneer has not received proxies representing a sufficient number of shares of Pioneer common stock to obtain the approval of the Pioneer stock issuance proposal, whether or not a quorum is present, to solicit additional proxies. However, the Pioneer special meeting will not be required to be adjourned in such circumstances more than one time and no such adjournment will be required for a period exceeding 10 business days.

Except as permitted in the merger agreement, Pioneer shall use its reasonable best efforts to solicit proxies to obtain the approval of the Pioneer stock issuance proposal and its obligations with respect to the Pioneer special meeting will not be affected by the commencement, public proposal, public disclosure or communication to Pioneer or any other person of any acquisition proposal or the occurrence of any adverse recommendation change.

Parsley Special Meeting

Parsley has agreed to duly call, give notice of, convene and hold a meeting of its stockholders for the purpose of obtaining the approval of the Parsley merger proposal and Parsley compensation proposal by Parsley stockholders as promptly as practicable after the registration statement, of which this joint proxy statement/prospectus forms a part, is declared effective by the SEC (which meeting shall in any event be within 45 days thereof). Except as permitted in the merger agreement, the Parsley board must recommend that the stockholders of Parsley vote in favor of the Parsley merger proposal at the Parsley special meeting and this joint proxy statement/prospectus is required to include such recommendation of the Parsley board.

Parsley may postpone or adjourn the Parsley special meeting (i) with the prior written consent of Pioneer, (ii) due to the absence of a quorum or if Parsley has not received proxies representing a sufficient number of shares of Parsley common stock to obtain the approval of the Parsley merger proposal, whether or not a quorum is present, to solicit additional proxies, or (iii) to allow reasonable additional time for the filing and mailing of any supplemental or amended disclosure that the Parsley board has determined in good faith after consultation with outside legal counsel is necessary under applicable law and for such supplemental or amended disclosure to be disseminated and reviewed by Parsley stockholders prior to the Pioneer special meeting. However, Parsley may not postpone or adjourn the Parsley special meeting more than a total of two times for the circumstances described in (ii).

In addition, Parsley will be required, at the request of Pioneer, to the extent permitted by law, to adjourn the Parsley special meeting to a date specified by Pioneer for the absence of a quorum or if Parsley has not received proxies representing a sufficient number of shares of Parsley Class A common stock and Parsley Class B common stock to obtain the approval of the Parsley merger proposal, whether or not a quorum is present, to solicit additional proxies. However, the Parsley special meeting will not be required to be adjourned in such circumstances more than one time and no such adjournment will be required for a period exceeding 10 business days.

Except as permitted in the merger agreement, Parsley shall use its reasonable best efforts to solicit proxies to obtain the approval of the Parsley merger proposal and its obligations with respect to the Parsley special meeting will not be affected by the commencement, public proposal, public disclosure or communication to Parsley or any other person of any acquisition proposal or the occurrence of any adverse recommendation change.

Timing of Special Meetings

Pioneer and Parsley are required to cooperate and use their reasonable best efforts to set the record dates for and hold the Pioneer special meeting and the Parsley special meeting on the same day and at approximately the same time.

Efforts to Close the Mergers

The parties have agreed to use their reasonable best efforts to take, or cause to be taken, all actions, and to do, or cause to be done, and to assist and cooperate with each other in doing, all things necessary, proper, desirable or advisable so as to permit and enable prompt consummation of the merger transactions, including (a) using commercially reasonable efforts to lift or rescind any injunction or restraining order or other order adversely affecting the ability of the parties to consummate and make effective, in the merger transactions,most expeditious manner practicable, the mergers and (b) using commercially reasonable efforts to defend any litigation seeking to enjoin, prevent or delay the consummation of the merger transactions or seeking material damages. Each of the parties will (x) cooperate fully with the other parties to that end and (y) furnish to the other parties copies of all correspondence, filings and communications between it and its affiliates and any governmental authority with respect to the merger transactions.

Unitholder Approval

Subject to the terms and conditions of the merger agreement, and except as described in the third paragraph of this subsection, Pioneer Southwest will take, in accordance with applicable law, applicable stock exchange rules and Pioneer Southwest’s partnership agreement, all action necessary to call, hold and convene the Pioneer Southwest special meeting to consider and vote upon the approval of the merger proposal, as promptly as practicable after the registration statement of which this proxy statement/prospectus is a part is declared effective. Subject to the immediately following paragraph, the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board will recommend approval of the merger proposal to the Pioneer Southwest unitholders, and Pioneer Southwest will take all reasonable lawful action to solicit such approval by the Pioneer Southwest unitholders. Except as described in the following two paragraphs, neither the Pioneer Southwest Conflicts Committee nor the Pioneer Southwest GP Board will (A) withdraw, modify or qualify in any manner adverse to Pioneer the recommendation of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board or (B) publicly approve, adopt or recommend, or publicly propose to approve, adopt or

recommend, any “acquisition proposal” (defined and described more fully under “The Merger Agreement — Covenants — Acquisition Proposals”). The actions described in the preceding sentence are referred to in this proxy statement/prospectus as a “Pioneer Southwest Change in Recommendation.” None of Pioneer Southwest GP, Pioneer Southwest or any of their subsidiaries will execute or enter into any letter of intent, memorandum of understanding, agreement in principle, merger agreement, acquisition agreement, option agreement, joint venture agreement, partnership agreement or other similar contract providing for any acquisition proposal.

Notwithstanding the above paragraph, at any time prior to obtaining the Pioneer Southwest unitholder approval, the Pioneer Southwest Conflicts Committee or the Pioneer Southwest GP Board may make a Pioneer Southwest Change in Recommendation if it has determined in good faith, after consultation with its outside legal counsel and financial advisors, that failure to make a Pioneer Southwest Change in Recommendation would be inconsistent with its duties under Pioneer Southwest’s partnership agreement or applicable law; provided, however, that neither the Pioneer Southwest Conflicts Committee nor the Pioneer Southwest GP Board will be entitled to exercise its right to make a Pioneer Southwest Change in Recommendation pursuant to this sentence unless (i) Pioneer Southwest has not engaged in a material breach of its covenant related to acquisition proposals, (ii) Pioneer Southwest has provided to Pioneer three business days prior written notice, advising Pioneer that the Pioneer Southwest Conflicts Committee or the Pioneer Southwest GP Board intends to take such action, specifying the reasons for taking such action in reasonable detail, including, if a reason for the Pioneer Southwest Change in Recommendation is an acquisition proposal, that the Pioneer Southwest Conflicts Committee has determined that the acquisition proposal is a superior proposal and specifying the terms and conditions of such acquisition proposal and the identity of the person making such acquisition proposal (it being understood that any amendment to the terms of any such acquisition proposal will require a new written notice, as described above, and an additional three business day period), (iii) if a reason for the Pioneer Southwest Change in Recommendation is an acquisition proposal, Pioneer Southwest has provided to Pioneer all materials and information delivered or made available to the person or group of persons making such acquisition proposal (to the extent not previously provided to Pioneer), (iv) each of Pioneer Southwest GP, Pioneer Southwest and the Pioneer Southwest Conflicts Committee has negotiated, and has used its commercially reasonable efforts to cause its representatives to negotiate, in good faith with Pioneer during such notice period to enable Pioneer to revise the terms of the merger agreement such that it would obviate the need for making the Pioneer Southwest Change in Recommendation, and (v) following the end of such notice period, the Pioneer Southwest Conflicts Committee will have considered in good faith any changes to the merger agreement proposed by Pioneer and will have determined that the failure to make a Pioneer Southwest Change in Recommendation would continue to be inconsistent with its duties under Pioneer Southwest’s partnership agreement or applicable law even if such revisions proposed by Pioneer were to be given effect and, if a reason for the Pioneer Southwest Change in Recommendation is an acquisition proposal, that the acquisition proposal continues to be a superior proposal even if the revisions proposed by Pioneer were to be given effect. Any Pioneer Southwest Change in Recommendation will not invalidate the approval (or “Special Approval” as defined in Pioneer Southwest’s partnership agreement) of the merger agreement or any other approval of the Pioneer Southwest Conflicts Committee, including in any respect that would have the effect of causing any state (including Delaware) takeover statute or other similar statute to be applicable to the merger transactions.

Notwithstanding anything to the contrary in the merger agreement, if there occurs a Pioneer Southwest Change in Recommendation in accordance with the merger agreement, Pioneer Southwest and Pioneer Southwest GP will, upon request of the Pioneer Southwest Conflicts Committee, (i) no longer call, hold or convene the Pioneer Southwest special meeting to consider and vote upon the approval of the merger proposal, and (ii) cancel any previously called Pioneer Southwest special meeting.

Nothing contained in the merger agreement will prevent Pioneer Southwest, Pioneer Southwest GP, the Pioneer Southwest GP Board or the Pioneer Southwest Conflicts Committee from taking and disclosing to the holders of Pioneer Southwest common units a position contemplated by Rule 14d-9 and Rule 14e-2(a) promulgated under the Exchange Act (or any similar communication to holders of Pioneer Southwest common units) or from making any legally required disclosure to holders of Pioneer Southwest common units. Any “stop-look-and-listen”

communication by Pioneer Southwest, Pioneer Southwest GP, the Pioneer Southwest GP Board, or the Pioneer Southwest Conflicts Committee to the limited partners of Pioneer Southwest pursuant toRule 14d-9(f) promulgated under the Exchange Act (or any similar communication to the holders of Pioneer Southwest common units) will not be considered a Pioneer Southwest Change in Recommendation or a withdrawal, modification or change in any manner adverse to Pioneer of all or a portion of the Pioneer Southwest GP Board approval or the Pioneer Southwest Conflicts Committee approval.

Registration Statement

Each of Pioneer, Pioneer Southwest and Pioneer Southwest GP agrees to cooperate in the preparation of the registration statement (which includes this proxy statement/prospectus) to be filed by Pioneer with the SEC in connection with the issuance of shares of Pioneer common stock in the merger as contemplated by the merger agreement. Pioneer agrees to file the registration statement with the SEC as promptly as practicable. Each of Pioneer Southwest and Pioneer agrees to use all commercially reasonable efforts to cause the registration statement to be declared effective under the Securities Act as promptly as practicable after filing of the registration statement. Pioneer also agrees to use commercially reasonable efforts to obtain all necessary state securities law or “Blue Sky” permits and approvals required to carry out the transactions contemplated by the merger agreement. Each of Pioneer and Pioneer Southwest agrees to furnish to the other party all information concerning Pioneer and its subsidiaries or Pioneer Southwest, Pioneer Southwest GP and its subsidiaries, as applicable, and the officers, directors, stockholders or unitholders of Pioneer and Pioneer Southwest and any applicable affiliates, as applicable, and to take such other action as may be reasonably requested in connection with the foregoing. No filing of the registration statement may be made by Pioneer, and no filing of this proxy statement/prospectus may be made by Pioneer or Pioneer Southwest, in each case without providing the other party a reasonable opportunity to review and comment on such registration statement and proxy statement/prospectus.

Each of Pioneer Southwest, Pioneer Southwest GP and Pioneer agrees, as to itself and its subsidiaries, that (i) none of the information supplied or to be supplied by it for inclusion or incorporation by reference in the registration statement of which this proxy statement/prospectus is a part will, at the time such registration statement and each amendment or supplement to such registration statement, if any, becomes effective under the Securities Act, contain any untrue statement of a material fact or omit to state any material fact required to be stated in such registration statement or any amendment or supplement necessary to make the statements in such registration statement or any amendment or supplement, in light of the circumstances under which they were made, not misleading, and (ii) this proxy statement/prospectus and each amendment or supplement to this proxy statement/prospectus will, at the date of mailing to the holders of Pioneer Southwest common units and at the time of the Pioneer Southwest special meeting, not contain any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements in this proxy statement/prospectus, in the light of the circumstances under which they were made, not misleading. Each of Pioneer Southwest, Pioneer Southwest GP and Pioneer further agrees that, if it becomes aware prior to the closing date of any information that would cause any of the statements in the registration statement or this proxy statement/prospectus to be false or misleading with respect to any material fact, or omit to state any material fact necessary to make the statements in the registration statement or this proxy statement/prospectus, in the light of the circumstances under which they were made, not false or misleading, it will promptly inform the other parties thereof and take the necessary steps to correct such information in an amendment or supplement to the registration statement or the proxy statement/prospectus. No amendment or supplement to the registration statement will be made by Pioneer, and no amendment or supplement to the proxy statement/prospectus will made by Pioneer or Pioneer Southwest, in each case without providing the other party a reasonable opportunity to review and comment on such registration statement and proxy statement/prospectus.

Pioneer will advise Pioneer Southwest, promptly after Pioneer receives notice thereof, of (i) the time when the registration statement has become effective or any supplement or amendment has been filed, (ii) the issuance of any stop order or the suspension of the qualification of the shares of Pioneer common stock for offering or sale in any jurisdiction, (iii) the initiation or threat of any proceeding for any such purpose, or (iv) any request by the

SEC for the amendment or supplement of the registration statement or this proxy statement/prospectus or for additional information.

Pioneer Southwest will use its commercially reasonable efforts to cause this proxy statement/prospectus to be mailed to the Pioneer Southwest unitholders as soon as practicable after the effective date of the registration statement of which this proxy statement/prospectus is a part.

Press Releases

Prior to a Pioneer Southwest Change in Recommendation, if any, neither Pioneer Southwest nor Pioneer will, without the prior approval of (a) the Pioneer Southwest Conflicts Committee, in the case of Pioneer, and (b) Pioneer, in the case of Pioneer Southwest, issue any press release or written statement for general circulation relating to the transactions contemplated by the merger agreement exceptand, subject to applicable law and as otherwise required by applicable law or the rulesany governmental entity, shall keep each other reasonably apprised of the NYSE, in which case it will consult with the other party before issuing any such press release or written statement.

Access; Information

Upon reasonable notice and subject to applicable lawsstatus of matters relating to the exchange of information, each party will, and will cause its subsidiaries to, afford the other parties and their representatives access, during normal business hours throughout the period prior to the effective time, to all of its properties, books, contracts, commitments and historical records as reasonably requested, and, during such period, it will, and will cause its subsidiaries to, furnish promptly to such person and its representatives a copy of each material report, schedule and other document filed by it pursuant to the requirements of federal or state securities law (other than reports or documents that Pioneer or Pioneer Southwest or their respective subsidiaries, as the case may be, are not permitted to disclose under applicable law). Neither Pioneer Southwest nor Pioneer nor any of their respective subsidiaries will be required to provide access to or to disclose information where such access or disclosure would jeopardize the attorney-client privilege of the institution in possession or control of such information or contravene any law, fiduciary duty or binding agreement entered into prior to the date of the merger agreement or allow any invasive sampling or testing of their properties. The parties to the merger agreement will make appropriate substitute disclosure arrangements under the circumstances in which the restrictions described in the immediately preceding sentence apply.

Pioneer and Pioneer Southwest, respectively, will not use any information obtained pursuant to the merger agreement (to which it was not entitled under law or any agreement other than the merger agreement) for any purpose unrelated (i) to the consummation of the mergers and the other transactions contemplated by the merger agreement, including promptly furnishing the other party with copies of notices or (ii)other communications received from any third party or any governmental entity with respect to the matters contemplated bymergers and the provisions of the merger agreement, and will hold all information and documents obtained pursuant to the provisions of the merger agreement in confidence. No investigation by either party of the business and affairs of the other will affect or be deemed to modify or waive any representation, warranty, covenant or agreement in the merger agreement, or the conditions to either party’s obligation to consummate the transactions contemplated by the merger agreement.

Acquisition ProposalsIndemnification, Exculpation and Insurance

As defined in theThe merger agreement “acquisition proposal” means any proposal or offer from or by any person other thanrequires Pioneer Pioneer USA, Pioneer Southwest GP, MergerCo or their respective subsidiaries relating to: (a) any direct or indirect acquisition of (i) more than 20%to cause, and fully guarantee the performance of, the assetssurviving company to take all action reasonably necessary to ensure that all rights to indemnification, exculpation and expense advancement and reimbursement in favor of Pioneer Southwest and its subsidiaries, taken as a whole, (ii) more than 20%current or former directors or officers of the outstanding Pioneer Southwest common units, or (iii) assets that generate more than 20% of the monthly cash flow, net revenues or net income of Pioneer Southwest and its subsidiaries, taken as a whole; (b) any “tender offer” or “exchange offer” that, if consummated, would result in any such person beneficially owning more than 20% of the outstanding Pioneer Southwest common units; or (c) any merger, consolidation, business combination, recapitalization, liquidation, dissolution or similar transaction involving Pioneer Southwest, other than the merger.

As defined in the merger agreement, “superior proposal” means a written acquisition proposal (provided, however, that (x) reference to 20% within the definition of “acquisition proposal” is to be replaced by 80%, and (y) any proposal or offer to acquire all or substantially all of the issued and outstanding Pioneer Southwest common units not owned by Pioneer USA will be an acquisition proposal for purposes of the definition of superior proposal) made by a third party to Pioneer Southwest or the Pioneer Southwest GP Board, for consideration consisting of cash and/or marketable securities, which the Pioneer Southwest Conflicts Committee believes in good faith to be bona fide and on terms and conditions which the Pioneer Southwest Conflicts Committee determines in good faith (after consultation with its financial and legal advisors) to be more favorable to the Pioneer Southwest unaffiliated unitholders from a financial point of view than the transactions contemplated by the merger agreement and to be in the best interests of the Pioneer Southwest unaffiliated unitholders and Pioneer Southwest, after taking into consideration, among other things, (i) the identity of the person making the superior proposal (including whether approval of the equity owners of such person is required), (ii) any impediments and risks to the consummation of the superior proposal, (iii) a comparison of all of the terms, conditions and legal, financial, regulatory and other aspects and effects of such superior proposal with such terms, conditions, aspects and impacts of the merger agreement, and (iv) any proposal by Pioneer to amend the terms of the merger agreement pursuant to the merger agreement.

Pioneer Southwest GP and Pioneer Southwest will, and they will cause their subsidiaries and representatives to, (i) immediately cease and terminate any solicitation, encouragement, discussions or negotiations with any person that may be ongoing with respect to or that may reasonably be expected to lead to an acquisition proposal, and (ii) request such person to promptly return or destroy all confidential information concerning Pioneer Southwest and its subsidiaries.

Neither Pioneer Southwest GP nor Pioneer Southwest will, and they will cause their subsidiaries and use their commercially reasonable efforts to cause their representatives not to, directly or indirectly, (i) initiate, solicit, knowingly encourage or knowingly facilitate (including by way of furnishing information) any inquiries regarding, or the making or submission of any proposal or offer that constitutes, or may reasonably be expected to lead to, an acquisition proposal, (ii) conduct or participate in any discussions or negotiations regarding any acquisition proposal, or (iii) furnish to any person any non-public information or data relating to Pioneer SouthwestParsley or any of its subsidiaries or afford access to the business, properties, assets, or, except as required by law or Pioneer Southwest’s partnership agreement, books or records of Pioneer Southwest or any of its subsidiaries. Notwithstanding the foregoing, at any time prior to obtaining the Pioneer Southwest unitholder approval, the Pioneer Southwest Conflicts Committee may take the actions described in clauses (ii) and (iii) above with respect to a third person that makes a bona fide unsolicited acquisition proposal that did not result from a material breach of the provisions of the merger agreement described in this paragraph, if (A) the Pioneer Southwest Conflicts Committee, after consultation with its outside legal counsel and financial advisors, determines in good faith that such acquisition proposal constitutes or could reasonably be expected to result in a superior proposal and that the failure to take such action would be inconsistent with its duties under Pioneer Southwest’s partnership agreement or applicable law, and (B) prior to furnishing any such non-public information to such third person, Pioneer Southwest receives from such third person an executed confidentiality agreement. Such confidentiality agreement must be of the nature generally used in circumstances similar to those contemplated in transactions of this type, as determined by the Pioneer Southwest Conflicts Committee in its reasonable business judgment; provided, however, that such confidentiality agreement must (a) have a term of not less than two years and (b) provide that all non-public information pertaining to Pioneer Southwest and its subsidiaries be protected as confidential information, subject to customary exceptions. Pioneer Southwest may amend or waive the terms of such confidentiality agreement in its discretion, except that Pioneer has the right to approve or consent to any amendment or waiver (i) of the two-year or more term of the confidentiality agreement, or (ii) that would have the effect of causing any non-public information pertaining to Pioneer Southwest and its subsidiaries that is protected as confidential information under such confidentiality agreement not to be protected as confidential information.

Pioneer Southwest GP and Pioneer Southwest will, as promptly as practicable (and in any event within two business days), advise Pioneer in writing of any request for non-public information or any acquisition proposal

received from any third person, or any inquiry or request for discussions or negotiations with respect to any acquisition proposalexisting indemnification agreements and the material terms of such request, acquisition proposal or inquiry. Pioneer Southwest GP and Pioneer Southwest will, as promptly as practicable (and in all events within 48 hours), provide to Pioneer copies of any written materials received by Pioneer Southwest GP, Pioneer Southwest or any of their subsidiaries or representatives in connection with any of the foregoing and the identity of the person or group making any such request, acquisition proposal or inquiry.

Pioneer Southwest GP and Pioneer Southwest will keep Pioneer reasonably informed of the status of any material developments regarding any acquisition proposal on a reasonably current basis. Pioneer Southwest GP and Pioneer Southwest agree that they and their subsidiaries will not enter into any confidentiality agreement with any person that prohibits Pioneer Southwest GP or Pioneer Southwest or any of their subsidiaries from providing any information to Pioneer in accordance with the merger agreement.

Pioneer Southwest and Pioneer Southwest GP acknowledged in the merger agreement that the agreements contained in the above mentioned paragraphs in this subsection are an integral partorganizational documents of the transactions contemplated by the merger agreement,Parsley and that, without these agreements, Pioneer, Pioneer USA and MergerCo would not have entered into the merger agreement. Accordingly, (i) if a court of competent jurisdiction finds that the Pioneer Southwest Conflicts Committee materially breached or took action materially inconsistent with its duties under Pioneer Southwest’s partnership agreement or applicable law, (ii) if there has been any injunction or other order issued by any court of competent jurisdiction, or other legal restraint or prohibition (in each case based in whole or in part upon the finding described in clause (i)), that would (A) require or permit Pioneer Southwest or Pioneer Southwest GP or any of their representatives to act or fail to act in a manner that would, in the absence of such injunction, order, legal restraint or prohibition, constitute a violation of the above mentioned provisions of the merger agreement or (B) limit the rights of Pioneer, Pioneer USA and MergerCo in any respect under the provisions of the merger agreement, and (iii) if Pioneer Southwest and Pioneer Southwest GP act or fail to act in a manner that would, in the absence of such injunction, order, legal restraint or prohibition, constitute a violation of the above mentioned provisions of the merger agreement that would permit Pioneer to terminate the merger agreement, then Pioneer will have the right to terminate the merger agreement pursuant to the merger agreement termination provisions.

Takeover Laws

Neither Pioneer Southwest nor Pioneer will take any action that would cause the transactions contemplated by the merger agreement to be subject to requirements imposed by any takeover laws, and each of them will take all commercially reasonable steps within its control to exempt (or ensure the continued exemption of) the transactions contemplated by the merger agreement from, or if necessary challenge the validity or applicability of, any applicable takeover law, asParsley LLC (as in effect on the date of the merger agreementagreement) for acts or thereafter, including takeover laws of any state that purport to applyomissions occurring prior to the effective time are assumed and performed by the surviving company and continue in full force and effect until the expiration of the applicable statute of limitations, except as otherwise required by applicable law.

The merger agreement requires Pioneer and the surviving company to put in place, and Pioneer to fully prepay prior to the effective time, a “tail policy” with a period of at least six years after the effective time from an insurance carrier with the same or better credit rating as Parsley’s current insurance carrier with respect to directors’ and officers’ liability insurance. In no event shall the aggregate cost of such policy purchased by Pioneer exceed during the tail period three times the current aggregate annual premium paid by Parsley for such purpose.

In the event that Pioneer or the merger transactions.surviving company, or any of their respective successors or assigns, consolidates with or merges into any other person or entity and is not the continuing or surviving corporation or entity or transfers all or substantially all its properties and assets to any person or entity, then in each case Pioneer must provide that the applicable successor and assign assumes the indemnification obligations described above.

No Rights TriggeredEmployee and Employment Benefit Matters

The merger agreement provides that, for a period of at least one year following the effective time, Pioneer Southwestwill cause the surviving company to provide each individual employed by Parsley or its subsidiaries immediately prior to the effective time and who continues employment with the surviving company or its subsidiaries as of the closing date (any such individual being referred to as a “Parsley continuing employee”) with a base salary or wage rate that is no less favorable than the base salary or wage rate in effect for such Parsley continuing employee immediately prior to the effective time and health, paid time off and retirement benefits and annual cash incentive opportunities that are no less favorable, in the aggregate, than the health, paid time off and retirement benefits and annual cash incentive opportunities provided to similarly situated employees of Pioneer. Following the effective time, Pioneer will cause the surviving company to continue and honor its obligations

under all employment, severance, change in control and other agreements (if any) between Parsley and its subsidiaries and each individual who is employed by Parsley or its subsidiaries immediately prior to the effective time.

Each Parsley continuing employee’s years of service with Parsley or its subsidiaries (or their respective predecessors, to the extent recognized by Parsley and its subsidiaries) prior to the effective time will be treated as service with Pioneer or its subsidiaries for purposes of eligibility to participate, vesting and calculation of vacation or severance benefit entitlements (but not for purposes of defined benefit pension accrual or post-employment retiree welfare benefits) with respect to Pioneer’s and its subsidiaries’ benefit plans, programs, arrangements, policies and practices providing benefits to any Parsley continuing employee after the closing date. However, such service will not be recognized to the extent it would result in any duplication of benefits for the same period of service or is not recognized by Parsley or its subsidiaries under any applicable benefit plan in which the Parsley continuing employee was eligible to participate prior to the effective time.

For purposes of each benefit plan of Pioneer or its subsidiaries in which any Parsley continuing employee is eligible to participate after the effective time, Pioneer will use commercially reasonable efforts to cause all pre-existing condition exclusions, waiting periods, evidence of insurability and actively-at-work requirements to be waived for such employee and their covered dependents, to the extent such conditions were inapplicable or waived under the comparable Parsley benefit plan in which such employee participated immediately prior to the closing date, and give full credit for all co-payments, coinsurance, maximum out-of-pocket requirements and deductibles to the extent satisfied in the plan year in which the effective time occurs as if there had been a single continuous employer.

Effective as of the day prior to the effective time but contingent upon the closing of the mergers, the Parsley board will approve resolutions (to be provided to Pioneer) terminating the Parsley Energy, Inc. 401(k) Plan unless Pioneer provides written notice to Parsley that the plan shall not be terminated. Effective as soon as administratively practicable following the closing, each Parsley continuing employee shall be eligible to participate in a tax-qualified defined contribution plan established or designated by Pioneer, subject to the terms and conditions thereof, and to the extent not prohibited under applicable law, Pioneer will take all stepsaction necessary to ensureprovide that each Parsley continuing employee may elect to rollover his or her full account balance in the enteringParsley Energy, Inc. 401(k) Plan in cash into such Pioneer 401(k) plan.

Other Covenants

The merger agreement contains certain other covenants, including, among other things, covenants relating to:

cooperation between Pioneer and Parsley in the preparation of this joint proxy statement/prospectus;

access by each party to certain information about the other party during the period prior to the earlier of the effective time or termination of the merger agreement, as applicable;

coordination between the parties with respect to obtaining the expiration or early termination of any waiting period under the HSR Act and other antitrust matters;

the consummation ofparties’ confidentiality obligations;

taking all reasonable action necessary to ensure that the transactions contemplated by the merger agreement andmay be consummated as promptly as practicable on the terms contemplated if any other action or combination of actions do not and will not result in the granttakeover law of any Rightsstate is or becomes applicable to any person under Pioneer Southwest’s partnershipthe merger agreement or underthe transactions contemplated thereby and otherwise minimize the effect of any material agreement to which it or any of its subsidiaries is a party.such takeover law;

New Common Stock Listed

Pioneer will use its commercially reasonable efforts to list, priorproviding notice to the closing,other party of certain notices or communications received from any governmental entity and certain other matters with respect to the merger agreement and the transactions contemplated thereby;

delisting of shares of Parsley Class A common stock on the NYSE, upon official noticederegistration of issuance,Parsley Class A common stock under the Exchange Act and listing of the shares of Pioneer common stock to be issued in the merger.

Third Party Approvals

Subjectmergers, or reserved for issuance in connection therewith, on the NYSE prior to the termseffective time;

cooperation between Pioneer and conditionsParsley in the defense or settlement of any stockholder litigation relating to the mergers;

certain tax matters with respect to the transactions contemplated by the merger agreement;

coordination between Pioneer and Parsley with respect to the declaration of dividends to their respective stockholders, and the related record dates and payment dates;

cooperation between Pioneer and Parsley in connection with public announcements; and

requirements of Section 16(a) of the merger agreement, Pioneer and Pioneer Southwest and their respective subsidiaries will cooperate and use their respective commercially reasonable effortsExchange Act.

Conditions Precedent to prepare all

the Mergers

documentation, to effect all filings, to obtain all permits, consents, approvals and authorizationsThe obligations of all governmental authorities and thirdthe parties necessary to consummate the merger transactions and to comply with the terms and conditions of such permits, consents, approvals and authorizations and to cause the merger to be consummated as expeditiously as practicable. Each of Pioneer and Pioneer Southwest will have the right to review in advance, andmergers are subject to the extent practicable each will consult withsatisfaction at or prior to the other, in each case subject to applicable lawseffective time of the following mutual conditions:

approval of the Pioneer stock issuance proposal by the Pioneer stockholders and approval of the Parsley merger proposal by the Parsley stockholders shall have been obtained;

any waiting period (and any extension thereof) under the HSR Act relating to the exchange of information with respect to, all material written information submitted to any third partymergers shall have expired or been terminated;

no temporary restraining order, preliminary or permanent injunction or other judgment, order or decree or other legal restraint or prohibition issued by any governmental authoritiesentity having jurisdiction over any party shall be in effect, and no law shall have been enacted, entered, promulgated, enforced or deemed applicable by any governmental entity that prohibits or makes illegal consummation of the mergers;

the shares of Pioneer common stock to be issued in the mergers, and shares of Pioneer common stock to be reserved for issuance in connection with the merger transactions. In exercisingmergers, shall have been approved for listing on the foregoing right, eachNYSE, subject to official notice of issuance; and

the registration statement on Form S-4, of which this joint proxy statement/prospectus forms a part, shall have been declared effective by the SEC under the Securities Act and no stop order suspending the effectiveness of the partiesForm S-4 shall have been issued and no proceedings for that purpose shall have been initiated.

The obligations of Pioneer, Merger Sub Inc., Merger Sub LLC and Opco Merger Sub to effect the mergers are also subject to the satisfaction, or waiver by Pioneer, at or prior to the effective time of the following additional conditions:

the accuracy of the representations and warranties of Parsley and Parsley LLC set forth in the merger agreement, agreessubject to act reasonably and promptly. Each party tothe materiality standards set forth in the merger agreement, agrees that it will consult with the other parties with respect to the obtainingas of all material permits, consents, approvals and authorizations of all third parties and governmental authorities necessary or advisable to consummate the merger transactions, and each party will keep the other parties apprised of the status of material matters relating to completion of the merger transactions.

Each of Pioneer and Pioneer Southwest agrees, upon request, to furnish the other party with all information concerning itself, its subsidiaries, directors, officers and stockholders or unitholders and such other matters as may be reasonably necessary or advisable in connection with any filing, notice or application made by or on behalf of such other party or any of such other party’s subsidiaries to any governmental authority in connection with the merger transactions.

Indemnification; Directors’ and Officers’ Insurance

Without limiting any additional rights that any director, officer, trustee, employee, agent, or fiduciary may have under any employment or indemnification agreement or under Pioneer Southwest’s partnership agreement, the limited liability company agreement of Pioneer Southwest GP or the merger agreement or, if applicable, similar organizational documents or agreements of any of Pioneer Southwest’s subsidiaries, from and after the effective time, Pioneer, Pioneer Southwest GP, Pioneer USA and Pioneer Southwest, jointly and severally, will: (i) indemnify and hold harmless each person who is at the date of the merger agreement or during the period from the date of the merger agreement through the date of the effective time serving as a director or officer of Pioneer Southwest GP or of any of its respective subsidiaries or as a trustee of (or in a similar capacity with) any compensation and benefit plan of any thereof (collectively, the “indemnified parties”) to the fullest extent authorized or permitted by applicable law, as in effect at or after the time of the merger agreement, in connection with any claim arising from the indemnified party’s service in such capacity and any losses, claims, damages, liabilities, costs, indemnification expenses, judgments, fines, penalties and amounts paid in settlement (including all interest, assessments and other charges paid or payable in connection with or in respect of any thereof) resulting therefrom; and (ii) promptly pay on behalf of or, within 15 days after any request for advancement, advance to each of the indemnified parties any indemnification expenses incurred in defending, serving as a witness with respect to or otherwise participating with respect to any such claim in advance of the final disposition of such claim, including payment on behalf of or advancement to the indemnified party of any indemnification expenses incurred by such indemnified party in connection with enforcing any rights with respect to such indemnification and/or advancement, in each case without the requirement of any bond or other security. The indemnification and advancement obligations of Pioneer, Pioneer USA, Pioneer Southwest GP and Pioneer Southwest pursuant to the merger agreement will extend to acts or omissions occurring at or before the effective time and any claim relating the merger agreement (including with respect to any acts or omissions occurring in connection with the approval of the merger agreement and the merger transactions and the consummation of the merger transactions, including the consideration and approval thereof and the process undertaken in connection with the approval of the merger agreement and any claim relating the consummation of the merger), and all rights to indemnification and advancement conferred under the merger agreement will continue as to any indemnified party who has ceased to be a director or officer of Pioneer Southwest GP after the date of the merger agreement and will inureas of the closing date (except to the benefitextent such representations and warranties speak as of a specified date, in which case such representations and warranties will be true and correct as of such person’s heirs, executorsdate), and personalPioneer’s receipt of an officer’s certificate from Parsley to that effect; and legal representatives. Neither Pioneer, Pioneer USA, Pioneer Southwest GP nor Pioneer Southwest will settle, compromise

performance of, or consentcompliance with, in all material respects, all covenants and obligations required to the entry of any judgment in any actualbe performed or threatened action in respect of which indemnification has been or could be sought by such indemnified party undercomplied with pursuant to the merger agreement unless the settlement, compromise or judgment includes an unconditional release of that indemnified party from all

liability arising out of that action without admission or finding of wrongdoing, or that indemnified party otherwise consents to such settlement, compromise or judgment.

Without limiting the foregoing, Pioneer, Pioneer USA, Pioneer Southwest GP, Pioneer Southwestby Parsley and MergerCo agree that all rights to indemnification, advancement of expenses and exculpation from liabilities for acts or omissions occurringParsley LLC at or prior to the effective time, existing asand Pioneer’s receipt of the timean officer’s certificate from Parsley to that effect.

The obligations of the merger agreement in favor of the indemnitees as provided in Pioneer Southwest’s partnership agreementParsley and the limited liability company agreement of Pioneer Southwest GP (or, as applicable, the charter, bylaws, partnership agreement, limited liability company agreement, or other organizational documents of any of Pioneer Southwest’s subsidiaries) and indemnification agreements of Pioneer Southwest or Pioneer Southwest GP or any of their respective subsidiaries will be assumed by the surviving entity, Pioneer Southwest GP, Pioneer and Pioneer USA in the merger without further action, at the effective time and will survive the merger and will continue in full force and effect in accordance with their terms.

For a period of six years from the effective time, Pioneer will maintain inParsley LLC to effect the current directors’ and officers’ liability insurance policies covering the indemnified parties (but may substitute other policies, including an insurance tail policy, of at least the same coverage and amounts containing terms and conditions thatmergers are no less advantageousalso subject to the indemnified parties so long as that substitution does not result in gapssatisfaction, or lapses in coverage) with respect to matters occurring onwaiver by Parsley, at or before the effective time.

If Pioneer, Pioneer USA, Pioneer Southwest GP or Pioneer Southwest or any of their respective successors or assigns (i) consolidates with or merges with or into any other person and will not be the continuing or surviving corporation, partnership or other entity of such consolidation or merger, or (ii) transfers or conveys all or substantially all of its properties and assets to any person, then, and in each such case, proper provision will be made so that the successors and assigns of Pioneer, Pioneer USA, Pioneer Southwest GP or Pioneer Southwest assume, including by operation of law, the obligations set forth in the provisions of the merger agreement summarized under this section “The Merger Agreement — Covenants — Indemnification; Directors’ and Officers’ Insurance.”

These provisions will survive the consummation of the merger and are intended to be for the benefit of, and will be enforceable by, the indemnified parties and their respective heirs and personal representatives, and will be binding on Pioneer, Pioneer USA, Pioneer Southwest GP and Pioneer Southwest and their respective successors and assigns.

Notification of Certain Matters

Each of Pioneer Southwest and Pioneer will give prompt notice to the other of (a) any fact, event or circumstance known to it that (i) could reasonably be expected, individually or taken together with all other facts, events and circumstances known to it, to result in any material adverse effect with respect to it, or (ii) could cause or constitute a material breach of any of its representations, warranties, covenants or agreements contained herein, and (b) (i) any change in its financial condition or business or (ii) any litigation or governmental complaints, investigations or hearings, in each case to the extent such change, litigation, complaints, investigations or hearings result in, or could reasonably be expected to result in, a material adverse effect.

Rule 16b-3

Prior to the effective time, Pioneer Southwest will take any steps as may be reasonably requested by any party to the merger agreement to cause dispositions of Pioneer Southwest equity securities (including Pioneer Southwest phantom units) pursuant to the transactions contemplated by the merger agreement by each individual who is a director or officer of Pioneer Southwest GP to be exempt under Rule 16b-3 promulgated under the Exchange Act.

Pioneer Southwest Conflicts Committee

Prior to the effective time, none of Pioneer, Pioneer USA or MergerCo nor any of their subsidiaries will, without the consent of at least three members of the Pioneer Southwest Conflicts Committee, eliminate the Pioneer Southwest Conflicts Committee, revoke or diminish the authority of the Pioneer Southwest Conflicts Committee or remove or

cause the removal of any director of Pioneer Southwest GP that is a member of the Pioneer Southwest Conflicts Committee either as a director or as a member of such committee. For the avoidance of doubt, this provision of the merger agreement will not apply to the filling, in accordance with the provisions of the limited liability company agreement of Pioneer Southwest GP, of any vacancies caused by a resignation of any such director.

Conversion of Equity Awards

Subject to the provisions of the merger agreement described in the third paragraph of this subsection, prior to the effective time of the Pioneer Board or following additional conditions:

the Pioneer Compensationaccuracy of the representations and Management Development Committee will adopt the Pioneer Southwest LTIP, authorize the conversionwarranties of Pioneer, Southwest phantom units into Pioneer restricted stock unitsMerger Sub Inc., Merger Sub LLC and Opco Merger Sub set forth in accordance with the merger agreement, atsubject to the effective time, and will take such other actions as may be necessary to authorize such conversion. Such actions will includemateriality standards set forth in the following: (i) effectivemerger agreement, as of the effective time,date of the Pioneer Southwest LTIPmerger agreement and as of the closing date (except to the extent such representations and warranties speak as of a specified date, in which case such representations and warranties will be continuedtrue and correct as of such date), and Parsley’s receipt of an officer’s certificate from Pioneer to that effect;

performance of, or compliance with, in all material respects, all covenants and obligations required to be performed or complied with pursuant to the merger agreement by Pioneer, Merger Sub Inc., Merger Sub LLC and all Pioneer Southwest obligations thereunder assumed by Pioneer (including obligations with respect to Pioneer Southwest phantom units in accordance with the merger agreement) and such plan will continue in effect subject to amendment, termination, and/Opco Merger Sub at or suspension in accordance with the terms of the Pioneer Southwest LTIP, notwithstanding the merger, applicable laws and regulations and the applicable rules of any stock exchange; (ii) from and after the effective time all references to Pioneer Southwest common units in the Pioneer Southwest LTIP will be substituted with references to shares of Pioneer common stock; (iii) the number of shares of Pioneer common stock that will be available for grant and delivery under the Pioneer Southwest LTIP from and after the effective time will equal the number of Pioneer Southwest common units that were available for grant and delivery under the Pioneer Southwest LTIP immediately prior to the effective time, and Parsley’s receipt of an officer’s certificate from Pioneer to that effect; and

receipt of an opinion from Vinson & Elkins, counsel to Parsley, or another nationally recognized law firm reasonably satisfactory to Parsley, dated as adjusted to give effectof the closing date, to the exchange ratio (which numbereffect that the integrated mergers, taken together, will includequalify as a “reorganization” within the numbermeaning of sharesSection 368(a) of Pioneer common stock subjectthe Code.

The parties cannot provide assurance as to when or if all of the conditions to the Pioneer restricted stock units thatmergers can or will be issued upon conversionsatisfied or waived by the appropriate party. As of the date of this joint proxy statement/prospectus, the parties have no reason to believe that any of these conditions will not be satisfied.

Termination of the Merger Agreement

Pioneer Southwest phantom unitsand Parsley may mutually agree in accordance withwriting to terminate the merger agreement), andagreement before consummating the time during which those shares will be available for grant under the Pioneer Southwest LTIP will not extend beyond April 28, 2018; (iv) from andmergers, even after the effective time, awards under the Pioneer Southwest LTIP may be granted only to those individuals who were eligible to receive awards under the Pioneer Southwest LTIP immediately before the effective time (including any individuals hired on and after the effective time who would have been eligible for such awards pursuant to the eligibility provisionsapproval of the Pioneer Southwest LTIP as in effect immediately prior to the effective time); and (v) no participant instock issuance proposal by the Pioneer Southwest LTIP will have any right to acquire Pioneer Southwest common units understockholders and the Pioneer Southwest LTIP from and after the effective time. Pioneer will reserve for issuance a number of shares of Pioneer common stock equal to the number of shares of Pioneer common stock that will be available for grant and delivery under the Pioneer Southwest LTIP from and after the effective time, including shares of Pioneer common stock that will be subject to Pioneer restricted stock units as a result of the conversion of Pioneer Southwest phantom units into Pioneer restricted stock units as contemplatedParsley merger proposal by the merger agreement. As soon as practicable following the effective time,Parsley stockholders have been obtained.

In addition, either Pioneer will file a Form S-8 registration statement with respect to the shares of Pioneer common stock available for grant and delivery under the Pioneer Southwest LTIP from and after the effective time and will maintain the effectiveness of such registration statement (and maintain the current status of the prospectus contained therein) for so long as such shares are available for grant and delivery under the Pioneer Southwest LTIP. Prior to the effective time, Pioneer will take such steps asor Parsley may be reasonably requested by any party toterminate the merger agreement to cause the acquisition of Pioneer restricted stock units and shares of Pioneer common stock pursuant to the transactions contemplated by the merger agreement by each individual who is an officer or director of Pioneer to be exempt under Rule 16b-3 promulgated under the Exchange Act.

As soon as practicable following the effective time, Pioneer Southwest will file a post-effective amendment to the Form S-8 registration statement filed by Pioneer Southwest on May 2, 2008, deregistering all Pioneer Southwest common units thereunder. Prior to the effective time, the Pioneer Southwest GP Board will take such action and adopt such resolutions as are required to (i) effectuate the treatment of the Pioneer Southwest phantom units pursuant to the terms of the merger agreement, and (ii) prevent and waive the forfeiture of any Pioneer Southwest phantom units that would otherwise be forfeited pursuant to Section 6(b)(iii) of the Pioneer Southwest LTIP.

Notwithstanding anything to the contrary in the immediately preceding two paragraphs, the Pioneer Board or the Pioneer Compensation and Management Development Committee may, at its option, prior to the effective time, authorize the conversion of Pioneer Southwest phantom units into Pioneer restricted stock units under the Pioneer LTIP in accordance with the merger agreement to be effective at the effective time, and may, in such event, elect either to adopt or not to adopt the Pioneer Southwest LTIP. In the event that the Pioneer Board or the Pioneer Compensation and Management Development Committee elects not to adopt the Pioneer Southwest LTIP, the provisions of the merger agreement described in the first paragraph of this subsection will continue to apply in full force and effect pursuant to their terms other than those provisions that relate to the adoption of the Pioneer Southwest LTIP.

Termination

Notwithstanding anything in the merger agreement to the contrary, the merger agreement may be terminated and the merger may be abandoned at any time prior to the effective time whether before or after Pioneer Southwest unitholder approval:if:

 

by mutual written consent of Pioneer and Pioneer Southwest;

by either Pioneer or Pioneer Southwest upon written notice to the other if:

the merger ismergers have not completedbeen consummated on or before March 17, 2014;the outside date; provided however, that the right to terminate the merger agreement due to the failure to complete the merger on or before March 17, 2014, willas described in this bullet shall not be available to aany party whose failure to fulfill in any material obligationrespect any of its obligations under the merger agreement or other material breach of the merger agreement has been the primaryproximate cause of, or proximately resulted in, the failure of the mergermergers to have beenbe consummated on or before March 17, 2014;by the outside date;

 

any court of competent jurisdiction or other governmental authority hasentity shall have issued a final and non-appealable statute,any judgment, order, injunction, rule order,or decree, or regulation or taken any other action restraining, enjoining or otherwise prohibiting any of the transactions contemplated by the merger agreement, and such judgment, order, injunction, rule, decree or other action shall have become final and nonappealable; provided, that permanently restrains, enjoinsthe party seeking to terminate the merger agreement as described in this bullet shall have used its reasonable best efforts to contest, appeal and remove such judgment, order, injunction, rule, decree, ruling or prohibitsother action in accordance with the consummationterms of the merger or makes agreement;

the merger illegal, so long as the terminating party is not then in material breachapproval of the Parsley merger agreement;proposal by the Parsley stockholders shall not have been obtained at the Parsley special meeting duly convened for such purpose or at any adjournment or postponement thereof at which a vote on the Parsley merger proposal was taken;

 

there has been a material breach of or any material inaccuracy in any

the approval of the representationsPioneer stock issuance proposal by the Pioneer stockholders shall not have been obtained at the Pioneer special meeting duly convened for such purpose, or warranties set forth in the merger agreementat any adjournment or postponement thereof at which a vote on the part of any of Pioneer stock issuance proposal was taken; or

the other parties, which breach is not cured within 30 days following receipt by the breaching party of written notice of its breach from the terminating party,has breached or which breach, by its nature, cannot be cured priorfailed to March 17, 2014, provided in any such case that the terminating party is not then in material breach ofperform any representation, warranty, covenant or other agreement contained in the merger agreement. No party will haveagreement (other than the right, however, to terminate“no solicitation” and stockholder meeting

covenants), or if any representation or warranty of the other party shall have become untrue, which breach or failure to perform or to be true, either individually or in the aggregate, if occurring or continuing at the effective time, would result in a terminable breach; provided, that the terminating party is not then in terminable breach of any covenant or agreement contained in the merger agreement.

In addition, the merger agreement pursuantmay be terminated under the following circumstances:

by Pioneer, prior to, but not after, the provision summarizedtime the Parsley stockholders approve the Parsley merger proposal, if (i) the Parsley board has effected a Parsley adverse recommendation change, (ii) in this bullet point unless the breachcase of a representationParsley acquisition proposal structured as a tender offer or warranty, together with all otherexchange offer, Parsley has, within 10 business days of the tender or exchange offer having been commenced, failed to publicly recommend against such breaches, would entitletender or exchange offer, (iii) upon a request to do so by Pioneer, Parsley has failed to publicly reaffirm its recommendation of the party receiving such representation notmergers within 10 business days after the date any Parsley acquisition proposal is first publicly announced, distributed or disseminated to consummateParsley stockholders or (iv) the transactions contemplated byParsley board or a director or executive officer of Parsley has, or has caused Parsley to have, breached or failed to perform any obligation set forth in the “no solicitation” or stockholder meeting covenants of the merger agreement because the closing conditions described in the first bullet point under “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer” or “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer Southwest,” as applicable, have not been met;any material respect;

 

by Parsley, prior to, but not after, the time the Pioneer stockholders approve the Pioneer stock issuance proposal, if (i) the Pioneer board has effected a Pioneer adverse recommendation change, (ii) in the case of a Pioneer acquisition proposal structured as a tender offer or exchange offer, Pioneer has, within 10 business days of the tender or exchange offer having been commenced, failed to publicly recommend against such tender or exchange offer, (iii) upon a request to do so by Parsley, Pioneer has failed to publicly reaffirm its recommendation of the stock issuance within 10 business days after the date any Pioneer acquisition proposal is first publicly announced, distributed or disseminated to Pioneer stockholders or (iv) the Pioneer board or a director or executive officer of Pioneer has, or has caused Pioneer to have, breached or failed to perform any obligation set forth in the “no solicitation” or stockholder meeting covenants of the merger agreement in any material respect; or

by Parsley, prior to, but not after, the time the Parsley stockholders approve the Parsley merger proposal, in order to enter into a definitive agreement with respect to a superior proposal; provided that Parsley shall have contemporaneously with such termination tendered payment to Pioneer of the Parsley termination fee in accordance with the terms of the merger agreement.

If the merger agreement is validly terminated, there has been awill be no liability or obligation on the part of Pioneer or Parsley, except that (1) both Pioneer and Parsley will remain liable for fraud or any willful and material breach of any covenant or agreement, in which case the non-breaching party will be entitled to all rights and remedies available at law or in equity, and (2) Pioneer or Parsley may be required to pay a termination fee (as described below) and/or reimburse certain expenses of the covenants or agreements set forth inother party.

Termination Fees and Expense Reimbursement

If the merger agreement is terminated:

(i) (A) by either party because the Pioneer stockholder approval is not obtained and on or before the partdate of any of the other partiessuch termination a Pioneer acquisition proposal is made directly to Pioneer stockholders or is otherwise publicly disclosed and not withdrawn at least seven business days prior to the merger agreement,Pioneer special meeting, or (B) by either party following the outside date or by Parsley due to a terminable breach by Pioneer and, in either case, on or before the breach hasdate of any such termination a Pioneer acquisition proposal is made directly to Pioneer stockholders or is otherwise publicly disclosed and not been curedwithdrawn at least seven business days prior to the Pioneer special meeting or is otherwise communicated to Pioneer senior management or the Pioneer board and (ii) within 30 days following receipt by12 months after the breaching party of written noticedate of such breach from the terminating party,termination, Pioneer enters into an agreement with respect to a Pioneer acquisition proposal (or recommends or which breach, by its nature, cannot be cured prior to March 17, 2014, so long as the terminating party itself is not then in material breach of any representation, warranty, covenant or other agreement contained in the merger agreement. In no event, however, will any party have the right to terminate the merger agreement pursuantsubmits a Pioneer acquisition proposal to the provision summarized in this bullet point unless the breach of covenants or agreements, together with all other such breaches, would entitle the party receiving the benefit of such covenants or agreements not to consummate the transactions contemplated by the merger agreement because the closing conditions described in the first bullet point under “The Merger Agreement —Pioneer stockholders for

 

Conditionsadoption) or consummates a transaction in respect to any Pioneer acquisition proposal (although for purposes of this clause (ii), each reference to “20% or more” in the definition of “acquisition proposal” shall be deemed to be a reference to “50% or more”), then Pioneer will be required to pay Parsley a termination fee of $270,000,000 (less the amount of any expense reimbursement fee previously paid to Parsley as described below) (such fee being referred to as the “Pioneer termination fee”) on the earliest of the execution of a definitive agreement with respect to, submission to the Merger — Additional Conditions toPioneer stockholders of, or the Obligationsconsummation of, Pioneer” or “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer Southwest,” as applicable, have not been met;any transaction contemplated by an acquisition proposal;

 

by Parsley following a Pioneer Southwest does not obtainadverse recommendation change or related events or a breach by Pioneer of the “no solicitation” or stockholder meeting covenants in any material respect, then Pioneer will be required to pay Parsley the Pioneer Southwest unitholdertermination fee as promptly as reasonably practicable after, and in any event within two business days of, such termination;

(i) (A) by either party because the Parsley stockholder approval is not obtained and on or before the date of any such termination a Parsley acquisition proposal is made directly to Parsley stockholders or is otherwise publicly disclosed and not withdrawn at least seven business days prior to the Parsley special meeting, or (B) by either party following the outside date or by Pioneer due to a terminable breach by Parsley and, in either case, on or before the date of any such termination a Parsley acquisition proposal is made directly to Parsley stockholders or is otherwise publicly disclosed and not withdrawn at least seven business days prior to the Pioneer Southwest special meeting; provided, however, thatmeeting or is otherwise communicated to Parsley senior management or the rightParsley board and (ii) within 12 months after the date of such termination, Parsley enters into an agreement with respect to terminate the merger agreement under the provision described in this bullet point will not be availablea Parsley acquisition proposal (or recommends or submits a Parsley acquisition proposal to the terminatingParsley stockholders for adoption) or consummates a transaction in respect to any Parsley acquisition proposal (although for purposes of this clause (ii), each reference to “20% or more” in the definition of “acquisition proposal” shall be deemed to be a reference to “50% or more”), then Parsley will be required to pay Pioneer a termination fee of $135,000,000 (less the amount of any expense reimbursement fee previously paid to Pioneer) (such fee being referred to as the “Parsley termination fee”) on the earliest of the execution of a definitive agreement with respect to, submission to the Parsley stockholders of, or the consummation of, any transaction contemplated by an acquisition proposal;

by Pioneer following a Parsley adverse recommendation change or related events or a breach by Parsley of the “no solicitation” or stockholder meeting covenants in any material respect, then Parsley will be required to pay Pioneer the Parsley termination fee as promptly as reasonably practicable after, and in any event within two business days of, such termination;

by Parsley prior to, but notafter, the time the Parsley stockholders approve the Parsley merger proposal, in order to enter into a definitive agreement with respect to a superior proposal, then Parsley will be required to pay Pioneer the Parsley termination fee concurrently with, and as a condition to, such termination;

by either party whereas a result of the failure to obtain the Pioneer Southwest unitholderstockholder approval, has been causedthen Pioneer will be required to pay Parsley an expense reimbursement fee of $90,000,000 within two business days of such termination; or

by either party as a result of the failure to obtain the Parsley stockholder approval, then Parsley will be required to pay Pioneer an expense reimbursement fee of $45,000,000 within two business days of such termination.

In no event will either party be required to pay a termination fee on more than one occasion. If either party pays a termination fee, the amount of such fee will be reduced by the actionamount of any expense reimbursement fee previously paid by such party.

Amendments and Waivers

The merger agreement may be amended, modified or failure to act of the terminating party and such action or failure to act constitutes a material breachsupplemented by the terminating partyparties in writing, and any provision of the merger agreement may be waived in writing by any party, in each case at any time prior to the effective time, except that any amendment or the voting agreement;waiver that requires further approval or

a Pioneer Southwest Change in Recommendation has occurred.

Fees and Expenses

Whether or not the merger is consummated, all costs and expenses incurred in connection with the merger agreement and the merger transactions will be paid by the party incurring such costs and expenses, except as described below.

If the merger agreement is terminated adoption by Pioneer or Pioneer Southwest due to a Pioneer Southwest Change in Recommendation, then Pioneer Southwest will pay to Pioneer certain expenses of Pioneer.

If the merger agreement is terminated by Pioneer due to a material breach by Pioneer Southwest of any representation, warranty or covenant, then Pioneer Southwest will pay to Pioneer certain expenses of Pioneer.

If the merger agreement is terminated by Pioneer Southwest due to a material breach by Pioneer of any representation, warranty or covenant, then Pioneer will pay to Pioneer Southwest certain expenses of Pioneer Southwest.

Except as otherwise provided in the merger agreement, any payment of the expenses of the applicable party willParsley stockholders may not be made by wire transfer of immediately available funds to an account designated by Pioneerwithout such further approval or an account designated by Pioneer Southwest, as applicable, within one business day following the event that triggered the obligation to make such payment. The parties acknowledge that the agreements described under “The Merger Agreement — Fees and Expenses” are an integral part of the merger transactions, and that, without these agreements, none of the parties would enter into the merger agreement.

As defined in the merger agreement, “expenses” means all reasonable out-of-pocket expenses (including all fees and expenses of counsel, accountants, investment bankers, experts and consultants to a party to the merger agreement and its affiliates) incurred by a party or on its behalf in connection with or related to the authorization, preparation, negotiation, execution and performance of the merger agreement and the merger transactions, including the preparation, printing, filing and mailing of this proxy statement/prospectus and the registration statement of which it is a part and the solicitation of the Pioneer Southwest unitholder approval, and all other matters, including costs and expenses of litigation, related to the merger transactions; provided, however, that the amount of expenses payable by one party to another under the merger agreement may not exceed $1.5 million. The expenses relating to the preparation, printing, filing and mailing of this proxy statement/prospectus and the registration statement of which it is a part and the solicitation of the Pioneer Southwest unitholder approval will be paid 50% by Pioneer and 50% by Pioneer Southwest.adoption.

Effect of TerminationSpecific Performance

In the event ofaddition to any other remedy that may be available to each party prior to the termination of the merger agreement, written notice will immediately be given by the terminating party to the other parties specifying the provisioneach of the merger agreement pursuant to which such termination is made, and, except as otherwise described in this paragraph, the merger agreement (other than the provisions described in “The Merger Agreement — Fees and Expenses” and certain other specific sections of the

merger agreement) will immediately become null and void after the expiration of any applicable period following such notice. In the event of such termination, there will be no liability on the part of any party, except as described in “The Merger Agreement — Fees and Expenses” and except with respect to the requirement tocomply with the confidentiality agreement; provided, however,that nothing in the merger agreement will relieve any party from any liability or obligation with respect to fraud or the willful and material breach of a covenant or agreement contained in the merger agreement. In the case of fraud or willful and material breach of a covenant or agreement contained in the merger agreement, then Pioneer or Pioneer Southwest, as the case may be,parties will be entitled to all remedies available at law or in equity. For purposes of the merger agreement, “willful and material breach” means a deliberate act or failure to act, which act or failure to act constitutes in and of itself a material breach of the merger agreement that the breaching party is aware would or would reasonably be expected to breach its obligations under the merger agreement.

No Third Party Beneficiaries

In general, the merger agreement is not intended to confer upon you or any person other than Pioneer, Pioneer USA, MergerCo, Pioneer Southwest and Pioneer Southwest GP any rights or remedies. A limited exception to this general rule exists to provide Pioneer Southwest GP’s directors and officers with indemnification and liability insurance coverage after completion of the merger.

Specific Performance

The parties agreed in the merger agreement that irreparable damage would occur if any provision of the merger agreement were not performed in accordance with its terms and, accordingly, the parties are, to the fullest extent permitted by law, entitled to an injunction, or injunctionsspecific performance and other equitable relief to prevent breaches of the merger agreement orand to enforce specifically the performance of the terms and provisions thereof in any federal court located in the State of Delaware or in the Delaware Court of Chancery, in addition to any other remedy to which they are entitled at law or in equity.

Waiver and Amendment

Subject to compliance with applicable law, prior to the closing, any provision of the merger agreement except for the requirement of obtaining the Pioneer Southwest unitholder approval (see “The Merger Agreement — Conditions to the Merger — Additional Conditions to the Obligations of Pioneer Southwest”) may be waived in writing by the party benefited by the provision, or amended or modified at any time, whether before or after the Pioneer Southwest unitholder approval is obtained, by an agreement in writing between the parties to the merger agreement. After the Pioneer Southwest unitholder approval, no amendment will be made to the nature or amount of the merger consideration or that results in a material adverse effect on the Pioneer Southwest unaffiliated unitholders without obtaining the required Pioneer Southwest unitholder approval (Pioneer Southwest GP being authorized to approve any other amendment on behalf of Pioneer Southwest without any other approval of the Pioneer Southwest unitholders).

Unless otherwise expressly set forth in the merger agreement, whenever Pioneer Southwest or Pioneer Southwest GP approval or consent is required pursuant to the merger agreement, such approval or consent will require the approval or consent of the Pioneer Southwest Conflicts Committee and will not require any approval of the Pioneer Southwest unitholders or the Pioneer Southwest GP Board.

Governing Law

The merger agreement is governed by, and interpreted underwill be construed in accordance with, the laws of the State of Delaware, law.without regard to the conflicts of law principles thereof.

THE MERGER PARTIES’ BUSINESSESINFORMATION ABOUT PIONEER

Pioneer’s Business

This section summarizes information from Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, Pioneer’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2013, and the other filings incorporated into this proxy statement/prospectus by reference. For a more detailed discussion of Pioneer’s business, please read the “Business and Properties” section contained in Pioneer’s 2012 Annual Report on Form 10-K and the other filings incorporated into this proxy statement/prospectus by reference.

Pioneer a Delaware corporation formed in 1997, is a large independent oil and gas exploration and production company with operationsthat explores for, develops and produces oil, NGL and gas in the United States.Permian Basin in West Texas. Pioneer is a holding company whose assets consistDelaware corporation, with principal executive offices located at 777 Hidden Ridge, Irving, Texas, 75038. Its telephone number at that address is (972) 444-9001. Pioneer also maintains an office in Midland, Texas and field offices in its area of direct and indirect ownership interests in, and whose business is conducted substantially through, its subsidiaries. Pioneer’soperation. Pioneer common stock ishas been listed and traded on the NYSE under the symbol “PXD.“PXD” since its formation in 1997. Additional information about Pioneer and its subsidiaries is included in documents incorporated by reference into this joint proxy statement/prospectus. See “Where You Can Find More Information.

Pioneer’s purpose

INFORMATION ABOUT PARSLEY

Parsley is to competitively and profitably explore for, develop and producean independent oil and natural gas reserves.company focused on the acquisition, development, exploration and production of unconventional oil and natural gas properties in the Permian Basin. The Permian Basin is located in west Texas and southeastern New Mexico and is characterized by high oil and liquids-rich natural gas content, multiple vertical and horizontal target horizons, extensive production histories, long-lived reserves and historically high drilling success rates. Parsley’s properties are located in two sub areas of the Permian Basin, the Midland and Delaware Basins, where, given the associated returns, it focuses predominantly on horizontal development drilling.

Parsley is a Delaware corporation with principal executive offices located at 303 Colorado Street, Austin, Texas 78701. Its telephone number at that address is (737) 704-2300. Parsley Class A common stock is listed on the NYSE under the symbol “PE”. Additional information about Parsley and its subsidiaries is included in documents incorporated by reference into this joint proxy statement/prospectus. See “Where You Can Find More Information.”

Parsley LLC is a Delaware limited liability company and majority-owned subsidiary of Parsley. Parsley’s sole material asset as of September 30, 2020 consisted of 378,610,172 Parsley LLC units and Parsley, as the sole managing member of Parsley LLC, holds a controlling equity interest in Parsley LLC and manages the business and affairs of Parsley LLC and its subsidiaries.

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

The following pro forma financial statements combine the historical financial statements of Pioneer and Parsley using the following information, which has been incorporated by reference into this joint proxy statement/prospectus: (i) Pioneer’s and Parsley’s audited consolidated financial statements for the year ended December 31, 2019, (ii) Pioneer’s and Parsley’s unaudited consolidated financial statements as of and for the nine months ended September 30, 2020 and (iii) Parsley’s pro forma financial information for the year ended December 31, 2019, giving effect to its acquisition of Jagged Peak, as disclosed in Parsley’s Current Report on Form 8-K filed with the SEC on April 10, 2020. The proposed mergers will be accounted for using the acquisition method of accounting, under which Pioneer will record assets acquired and liabilities assumed at their respective fair values as of the closing date. Certain of Parsley’s historical amounts have been reclassified to conform to Pioneer’s financial statement presentation.

The pro forma financial statements have been prepared to reflect the transaction accounting adjustments to Pioneer’s historical consolidated financial information in order to account for the acquisition. The unaudited pro forma condensed combined balance sheet as of September 30, 2020 gives effect to the mergers as if they had been completed on September 30, 2020. The unaudited pro forma condensed combined statements of operations for the year ended December 31, 2019 and the nine months ended September 30, 2020 give effect to the mergers and, in the case of the year ended December 31, 2019, Parsley’s acquisition of Jagged Peak, in each case as if they had been completed on January 1, 2019.

The pro forma financial statements reflect the following merger-related pro forma adjustments, based on available information and certain assumptions that Pioneer believes are reasonable:

the mergers, which will be accounted for as a business combination using the acquisition method of accounting, with Pioneer identified as the acquirer, and the issuance of shares of Pioneer common stock as merger consideration;

each eligible share of Parsley Class A common stock and each eligible Parsley LLC unit will be converted automatically into the right to receive 0.1252 shares of Pioneer common stock, in accordance with the terms of the merger agreement;

the conversion of unvested Parsley time-based restricted stock unit awards into Pioneer time-based restricted stock unit awards, the conversion of unvested Parsley time-based restricted stock awards into Pioneer time-based restricted stock awards and the settlement of vested Parsley time-based restricted stock unit awards, vested Parsley time-based restricted stock awards and vested and unvested Parsley performance-based restricted stock unit awards and performance-based restricted stock unit awards through the issuance of shares of Pioneer common stock, in each case, in accordance with the merger agreement, as described in the section titled “The Merger Agreement—Treatment of Parsley Equity-Based Awards”;

the assumption of liabilities for merger-related expenses; and

the recognition of the estimated tax impact of the pro forma adjustments.

Assumptions and estimates underlying the pro forma adjustments are described in the accompanying notes, which should be read in conjunction with the pro forma financial statements. In so doing,Pioneer’s opinion, all adjustments that are necessary to present fairly the pro forma information have been made.

As of the date of this joint proxy statement/prospectus, Pioneer sells homogenoushas not completed the detailed valuation study necessary to arrive at the required final estimates of the fair value of the assets to be acquired and the liabilities to be assumed and the related allocations of purchase price, nor has it identified all adjustments necessary to conform Parsley’s accounting policies to Pioneer’s accounting policies. A final determination of the fair value of Parsley’s assets and liabilities will be based on the actual assets and liabilities of Parsley that exist as

of the closing date and, therefore, cannot be made prior to the completion of the mergers. In addition, the value of the consideration to be paid by Pioneer upon the consummation of the mergers will be determined based on the closing price of Pioneer common stock on the closing date. The pro forma adjustments are preliminary and are subject to change as additional information becomes available and as additional analysis is performed. The final purchase price allocation may be materially different than that reflected in the pro forma purchase price allocation presented herein.

The pro forma financial statements are provided for illustrative purposes only and are not intended to represent what Pioneer’s financial position or results of operations would have been had the mergers actually been consummated on the assumed dates nor do they purport to project the future operating results or the financial position of the combined company following the mergers. The pro forma financial statements do not reflect future events that may occur after the mergers, including, but not limited to, the anticipated realization of savings from potential operating efficiencies, asset dispositions, cost savings, or economies of scale that the combined company may achieve with respect to the combined operations. Specifically, the pro forma statements of operations do not include projected synergies expected to be achieved as a result of the mergers, which are described in the section titled “The Mergers—Recommendation of the Pioneer Board and Reasons for the Mergers,” and any associated costs that may be incurred to achieve the identified synergies. Additionally, Pioneer cannot assure that it will not incur charges in excess of those included in the pro forma total consideration related to the mergers or that Pioneer’s efforts to achieve the estimated synergies and integrate the operations of the companies will be successful. The pro forma statements of operations also exclude the costs associated with any restructuring, integration activities, and asset dispositions that may result from the mergers. Further, the pro forma financial statements do not reflect the effect of any regulatory actions that may impact the results of the combined company following the mergers.

The pro forma financial statements should be read in conjunction with the separate historical consolidated financial statements and related notes of each of Pioneer and Parsley included elsewhere in this proxy statement/prospectus and incorporated herein. For more information, see the sections titled “Selected Historical Consolidated Financial Data of Pioneer,” “Selected Historical Consolidated Financial Data of Parsley,” and “Where You Can Find More Information” and the risk factors described in the section titled “Risk Factors.”

PIONEER NATURAL RESOURCES COMPANY

UNAUDITED PRO FORMA COMBINED BALANCE SHEET

AS OF SEPTEMBER 30, 2020

(in millions)

   Pioneer
Historical
  Parsley
Historical,
As Adjusted
(Note 4)
  Transaction
Accounting
Adjustments
     Pro Forma
Combined
 

ASSETS

      

Current assets:

      

Cash and cash equivalents

  $1,325 $5 $—     $1,330

Restricted cash

   66  —     —      66

Accounts receivable:

      

Trade, net

   662  173  —      835

Income taxes receivable

   22  —     —      22

Inventories

   191  15  —      206

Derivatives

   49  81  —      130

Investment in affiliate

   67  —     —      67

Other

   38  11  —      49
  

 

 

  

 

 

  

 

 

   

 

 

 

Total current assets

   2,420  285  —      2,705
  

 

 

  

 

 

  

 

 

   

 

 

 

Oil and gas properties, using the successful efforts method of
accounting:

      

Proved properties

   23,498  4,565  223   (a  28,286

Unproved properties

   572  2,968  (130  (a  3,410 

Accumulated depletion, depreciation and amortization

   (9,719  (250  250   (a  (9,719
  

 

 

  

 

 

  

 

 

   

 

 

 

Total oil and gas properties, net

   14,351  7,283  343    21,977 
  

 

 

  

 

 

  

 

 

   

 

 

 

Other property and equipment, net

   1,603  181  (12  (a  1,772

Operating lease right-of-use assets

   198  86  —      284

Derivatives

   —     3  —      3

Goodwill

   261  —     —      261

Other assets

   144  —     —      144
  

 

 

  

 

 

  

 

 

   

 

 

 
  $18,977 $7,838 $331  $27,146 
  

 

 

  

 

 

  

 

 

   

 

 

 

LIABILITIES AND EQUITY

      

Current liabilities:

      

Accounts payable:

      

Trade

  $871 $404 $90   (b $1,365

Due to affiliates

   137  11  157   (c  305

Interest payable

   17  42  —      59

Income taxes payable

   2  —     —      2

Current portion of long-term debt

   140  —     —      140

Derivatives

   51  107  —      158

Operating leases

   99  40  —      139

Other

   371  4  —      375
  

 

 

  

 

 

  

 

 

   

 

 

 

Total current liabilities

   1,688  608  247    2,543
  

 

 

  

 

 

  

 

 

   

 

 

 

Long-term debt

   3,148  2,989  (31  (d  6,106

Derivatives

   14  25  —      39

Deferred income taxes

   1,406  9  (388  (e  1,027 

Operating leases

   113  50  —      163

Other liabilities

   954  30  5   (f  989

Equity:

      

Common stock

   2  4  (3  (g  3

Additional paid-in capital

   9,305  6,971  (2,257  (g  14,019 

Treasury stock

   (1,235  (11  11   (g  (1,235

Retained earnings

   3,582  (3,148  3,058   (g), (b)   3,492
  

 

 

  

 

 

  

 

 

   

 

 

 

Total equity attributable to common stockholders

   11,654  3,816  809    16,279 

Noncontrolling interest in consolidated subsidiaries

   —     311  (311  (g  —   
  

 

 

  

 

 

  

 

 

   

 

 

 

Total equity

   11,654  4,127  498    16,279 
  

 

 

  

 

 

  

 

 

   

 

 

 

Commitments and contingencies

      
  

 

 

  

 

 

  

 

 

   

 

 

 
  $18,977 $7,838 $331  $27,146 
  

 

 

  

 

 

  

 

 

   

 

 

 

PIONEER NATURAL RESOURCES COMPANY

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

NINE MONTHS ENDED SEPTEMBER 30, 2020

(in millions, except per share data)

   Pioneer
Historical
  Parsley
Historical,
As Adjusted
(Note 4)
  Transaction
Accounting
Adjustments
     Pro Forma
Combined
 

Revenues and other income:

      

Oil and gas

  $2,617 $1,222 $—     $3,839

Sales of purchased oil and gas

   2,391  —     —      2,391

Interest and other income (loss), net

   (145  70  —      (75

Derivative gain (loss), net

   60  179  —      239

Gain (loss) on disposition of assets, net

   7  —     —      7
  

 

 

  

 

 

  

 

 

   

 

 

 
   4,930  1,471  —      6,401
  

 

 

  

 

 

  

 

 

   

 

 

 

Costs and expenses:

      

Oil and gas production

   506  232  —      738

Production and ad valorem taxes

   182  92  —      274

Depletion, depreciation and amortization

   1,243  530  (117  (h  1,656

Purchased oil and gas

   2,598  —     —      2,598

Impairment of oil and gas properties

   —     4,374  —      4,374

Exploration and abandonments

   35  572  —      607

General and administrative

   180  106  —      286

Accretion of discount on asset retirement obligations

   7  1  —      8

Interest

   94  123  (5  (i  212

Other

   273  116  —      389
  

 

 

  

 

 

  

 

 

   

 

 

 
   5,118  6,146  (122   11,142
  

 

 

  

 

 

  

 

 

   

 

 

 

Income (loss) before income taxes

   (188  (4,675  122    (4,741

Income tax benefit (provision)

   18  574  (26  (e  566
  

 

 

  

 

 

  

 

 

   

 

 

 

Net income (loss)

   (170  (4,101  96    (4,175

Net (income) loss attributable to noncontrolling interests

   —     400  (400  (j  —   
  

 

 

  

 

 

  

 

 

   

 

 

 

Net loss attributable to common stockholders

  $(170 $(3,701 $(304  $(4,175
  

 

 

  

 

 

  

 

 

   

 

 

 

Basic and diluted net loss per share attributable to common
stockholders (k)

  $(1.03    $(19.24

Basic and diluted weighted average shares outstanding (k)

   165   52(l)    217

PIONEER NATURAL RESOURCES COMPANY

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

YEAR ENDED DECEMBER 31, 2019

(in millions, except per share data)

   Pioneer
Historical
  Parsley
Pro Forma
As Adjusted
(Note 4)
  Transaction
Accounting
Adjustments
     Pro Forma
Combined
 

Revenues and other income:

      

Oil and gas

  $4,916 $2,544 $—     $7,460

Sales of purchased oil and gas

   4,755  —     —      4,755

Interest and other income, net

   76  4  —      80

Derivative gain (loss), net

   34  (274  —      (240

Gain (loss) on disposition of assets, net

   (477  2  —      (475
  

 

 

  

 

 

  

 

 

   

 

 

 
   9,304  2,276  —      11,580
  

 

 

  

 

 

  

 

 

   

 

 

 

Costs and expenses:

      

Oil and gas production

   874  284  —      1,158

Production and ad valorem taxes

   299  170  —      469

Depletion, depreciation and amortization

   1,711  947  (314  (h  2,344

Purchased oil and gas

   4,472  —     —      4,472

Impairment of oil and gas properties

   —     47  —      47

Exploration and abandonments

   58  100  —      158

General and administrative

   324  210  —      534

Accretion of discount on asset retirement obligations

   10  2  —      12

Interest

   121  171  (38  (i  254

Other

   448  29  106   (b  583
  

 

 

  

 

 

  

 

 

   

 

 

 
   8,317  1,960  (246   10,031
  

 

 

  

 

 

  

 

 

   

 

 

 

Income before income taxes

   987  316  246    1,549

Income tax provision

   (231  (74  (53  (e  (358
  

 

 

  

 

 

  

 

 

   

 

 

 

Net income

   756  242  193    1,191

Net (income) loss attributable to noncontrolling interests

   —     (31  31   (j  —  
  

 

 

  

 

 

  

 

 

   

 

 

 

Net income attributable to common stockholders

  $756 $211 $224   $1,191
  

 

 

  

 

 

  

 

 

   

 

 

 

Basic and diluted net income per share attributable to common
stockholders (k)

  $4.50    $5.44

Basic and diluted weighted average shares outstanding (k)

   167   52(l)    219

NOTES TO THE UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS

NOTE 1. Basis of Presentation

The accompanying pro forma financial statements were prepared in accordance with Article 11 of Regulation S-X, as amended for SEC Final Rule, Amendments to Financial Disclosures about Acquired and Disposed Businesses, release number 33-10786 dated May 20, 2020 (“Article 11”), using the acquisition method of accounting under GAAP and are based on the historical consolidated and combined financial information of Pioneer and Parsley. Certain transaction accounting adjustments have been made in order to show the effects of the acquisition on the combined historical financial information of Pioneer and Parsley. The pro forma adjustments are preliminary and based on estimates of the purchase consideration and estimates of fair value and useful lives of the assets acquired and liabilities assumed.

The pro forma financial statements combine the historical financial statements of Pioneer and Parsley using the following information, which has been incorporated by reference into this joint proxy statement/prospectus: (i) Pioneer’s and Parsley’s audited consolidated financial statements for the year ended December 31, 2019, (ii) Pioneer’s and Parsley’s unaudited consolidated financial statements as of and for the nine months ended September 30, 2020 and (iii) Parsley’s pro forma financial information for the year ended December 31, 2019, giving effect to its acquisition of Jagged Peak, as disclosed in Parsley’s Current Report on Form 8-K that was filed with the SEC on April 10, 2020.

The pro forma combined balance sheet as of September 30, 2020 gives effect to the mergers as if they had been completed on September 30, 2020. The pro forma combined statements of operations for the year ended December 31, 2019 and the nine months ended September 30, 2020 give effect to the mergers and, in the case of the year ended December 31, 2019, Parsley’s acquisition of Jagged Peak, in each case as if they had been completed on January 1, 2019.

NOTE 2. Estimated Purchase Price Allocation

The mergers will be accounted for using the acquisition method of accounting for business combinations. The allocation of the preliminary estimated purchase price is based upon Pioneer management’s estimates of and assumptions related to the fair value of assets to be acquired and liabilities to be assumed as of September 30, 2020, using currently available information. Because the pro forma financial statements have been prepared based on these preliminary estimates, the final purchase price allocation and the resulting effect on Pioneer’s financial position and results of operations may materially differ from the pro forma amounts included in this joint proxy statement/prospectus. Pioneer expects to finalize its allocation of the purchase price as soon as practicable after completion of the proposed mergers.

The preliminary purchase price allocation is subject to change as a result of several factors, including but not limited to:

Changes in the estimated fair value of the shares of Pioneer common stock issued as merger consideration to Parsley Class A stockholders and Parsley LLC unitholders, based on the share price of Pioneer common stock as of the closing date;

Changes in the estimated fair value of Parsley’s assets acquired and liabilities assumed as of the closing date, which could result from changes in future oil, NGL and gas units that, except for geographiccommodity prices, reserve estimates, asset evaluations, interest rates, discount rates and relatively minor quality differences, cannot be significantly differentiated from units offered for sale by Pioneer’s competitors. Competitive advantage is gainedother factors;

the tax basis of Parsley’s assets and liabilities as of the closing date; and

certain of the risk factors described in the section titled “Risk Factors”.

Based upon the preliminary merger consideration to be transferred, the fair value of the assets acquired and liabilities assumed is expected to be recorded as follows (shown in millions, except exchange ratio and per share data):

Consideration transferred:

  

Parsley Class A common stock outstanding on September 30, 2020

   379

Parsley LLC units outstanding on September 30, 2020

   34

Parsley stock-based awards converted or settled as part of the mergers

   3
  

 

 

 

Total shares/units convertible to or settled in Pioneer common stock

   416

Exchange ratio

   0.1252 
  

 

 

 

Shares of Pioneer common stock to be issued

   52

NYSE closing price per share of Pioneer common stock on November 13, 2020

  $90.67 
  

 

 

 

Fair value of Pioneer common stock to be issued as consideration

  $4,715 

Fair value of assets acquired:

  

Cash and cash equivalents

  $5

Accounts receivable

   173

Derivatives

   84

Proved properties

   4,788

Unproved properties

   2,838 

Other property and equipment, net

   169

Operating lease right-of-use assets

   86

Other assets

   26

Deferred income taxes

   379 
  

 

 

 

Total assets acquired

  $8,548 

Fair value of liabilities assumed:

  

Accounts payable

  $572

Interest payable

   42

Derivatives

   132

Operating leases

   90

Long-term debt

   2,958

Other liabilities

   39
  

 

 

 

Total liabilities assumed

  $3,833
  

 

 

 

Assets acquired and liabilities assumed

  $4,715 
  

 

 

 

Under the merger agreement, each Parsley Class A stockholder and Parsley LLC unitholder will be entitled to receive 0.1252 shares of Pioneer common stock for, as applicable, (i) each eligible share of Parsley Class A common stock, (ii) each eligible Parsley LLC unit and (iii) each Parsley equity award converted or settled as part of the mergers. The integrated mergers are intended to be non-taxable to Parsley’s Class A stockholders, and Parsley’s tax basis in Parsley LLC units will carry over to Pioneer. The exchange of Parsley LLC units for shares of Pioneer common stock (and cash in lieu of fractional shares of Pioneer common stock, if any), however, is intended to be a taxable event for Parsley LLC unitholders, even though Parsley LLC unitholders will receive no cash consideration (other than any cash received in lieu of fractional shares of Pioneer common stock), and will result in an increase in the tax basis of the assets of Parsley LLC.

From October 19, 2020, the last trading date before market rumors were reported regarding a potential combination of Pioneer and Parsley, to November 13, 2020, the preliminary value of Parsley’s merger consideration increased by approximately $188 million, as a result of the increase in the share price of Pioneer common stock from $87.05 to $90.67. The final value of Pioneer’s merger consideration will be determined

based on the actual number of shares of Pioneer common stock issued to Parsley Class A stockholders and Parsley LLC unitholders and issuable in connection with the conversion or settlement of Parsley’s equity awards, and the market price of Pioneer common stock on the closing date. A 10% increase or decrease in the closing share price of Pioneer common stock, as compared to the November 13, 2020 closing price of $90.67, would increase or decrease the purchase price by approximately $470 million, assuming all other factors are held constant.

NOTE 3. Pro Forma Adjustments

Adjustments included in the columns labeled “Transaction Accounting Adjustments” in the pro forma financial statements are as follows:

(a) Reflects a preliminary purchase price allocation adjustment resulting in (i) an increase to Parsley’s proved oil and gas explorationproperties to record the properties at their estimated fair value, (ii) the elimination of Parsley’s historical accumulated depletion, depreciation and development industry by employing well-trained and experienced personnel who make prudent capital investment decisions based on management direction, embrace technological innovation, and focus on price and cost management.

Pioneer’s mission isamortization (“DD&A”) balances, (iii) a decrease to enhance stockholder investment returns through strategies that maximize Pioneer’s long-term profitability and net asset value. The strategies employed to achieve this mission are predicated on maintaining financial flexibility, capital allocation discipline and enhancing net asset value through accretive drilling programs, joint ventures and acquisitions. These strategies are anchored primarily by drilling in the Spraberry field, the liquid-rich Eagle Ford Shale field located in South Texas, the Barnett Shale Combo field in North Texas and, to a lesser extent, Alaska. Complementing these growth areas, Pioneer hasParsley’s unproved oil and gas production activitiesproperties to record these future drilling locations at their estimated fair value and development opportunities(iv) a decrease to the value of other property and equipment to record these assets at their estimated fair value.

(b) Represents estimated nonrecurring transaction costs of approximately $90 million that are expected to be incurred by Pioneer and Parsley, including advisory, legal, regulatory, accounting, valuation and other professional fees that are not capitalized as part of the mergers. These transaction costs are based on preliminary estimates and the final amounts and the resulting effect on Pioneer’s financial position and results of operations may differ significantly. The pro forma combined statement of operations for the year ended 2019 includes a $16 million adjustment to include nonrecurring acquisition costs incurred by Parsley to acquire Jagged Peak to adjust Parsley’s previously reported unaudited condensed combined pro forma statement of operations for the year ended December 31, 2019 to the presentation of Pioneer’s pro forma statement of operations under Article 11. The Parsley transaction costs related to the Jagged Peak acquisition were paid prior to September 30, 2020 and therefore are not included in Accounts Payable in the Raton gas field located in southern Colorado,Unaudited Pro Forma Condensed Combined Balance Sheet.

(c) Reflects a preliminary purchase price allocation adjustment to record the Hugoton gasfair value of the TRA termination payments, which is an obligation associated with the tax receivable agreement that becomes payable to the TRA holders at the closing of the mergers. Please see “The Mergers—Interests of Certain Parsley Directors and liquid field located in southwest Kansas, the West Panhandle gas and liquid field locatedExecutive Officers in the Texas Panhandle,Mergers—Taxable Status of Opco Merger for Parsley LLC Unitholders and Rights of Certain Parsley LLC Unitholders under the EdwardsTax Receivable Agreement.”

(d) Reflects a preliminary purchase price allocation adjustment to record Parsley’s outstanding long-term debt at its fair value.

(e) Reflects an adjustment to deferred income taxes to record the estimated deferred income tax effects of combining Pioneer’s and Parsley’s operations. The deferred tax adjustment assumes a forecasted blended Parsley statutory tax rate of 21.6%. The pro forma income tax adjustments included in the pro forma statements of operations for the periods ended September 30, 2020 and December 31, 2019 reflect the income tax effects of the transaction accounting adjustments presented. Because the tax rates used for these pro forma financial statements are an estimate, the blended rate will likely vary from the actual effective rate in periods subsequent to completion of the mergers.

(f) Reflects a preliminary purchase price allocation adjustment to record the estimated fair value of the assumed Parsley asset retirement obligations.

(g) Reflects a preliminary purchase price allocation adjustment to eliminate Parsley historical equity balances in accordance with the acquisition method of accounting. The adjustment to noncontrolling interests reflects the elimination of the noncontrolling interest of the membership interests of Parsley LLC unitholders who will be

entitled to receive 0.1252 shares of Pioneer common stock for each Parsley LLC unit. The impact of pro forma merger adjustments on total equity are summarized below (shown in millions):

   Elimination of
Parsley’s
Historical Equity
   Issuance of
Pioneer
Common Stock
   Pro Forma
Equity
Adjustments
 

Common stock

  $(4  $1  $(3

Additional paid in capital

   (6,971   4,714   (2,257

Treasury stock

   11   —      11

Retained earnings

   3,148   —      3,148
  

 

 

   

 

 

   

 

 

 

Total stockholder’s equity

   (3,816   4,715   899

Noncontrolling interests

   (311   —      (311
  

 

 

   

 

 

   

 

 

 

Total equity

  $(4,127  $4,715   $588
  

 

 

   

 

 

   

 

 

 

(h) Reflects the pro forma DD&A expense based on the preliminary purchase price allocation. DD&A for oil and gas field locatedproperties was calculated in South Texas.accordance with the successful efforts method of accounting for oil and gas properties using the combined companies estimated proved reserves. DD&A expense for other property and equipment was based on the estimated useful lives of the assets.

(i) Reflects the impact of the amortization of the debt discount resulting from the preliminary purchase price allocation adjustment to record Parsley’s outstanding debt at fair value.

(j) Reflects the elimination of the noncontrolling interest attributable to the membership interests of Parsley LLC unitholders. Each Parsley LLC unitholder will be entitled to receive 0.1252 shares of Pioneer common stock for each Parsley LLC unit owned.

(k) The pro forma merger adjustments on Pioneer common stock and basic and diluted earnings per share are summarized below:

   Nine Months
Ended
September 30,
2020
   Year Ended
December 31,
2019
 

Numerator

    

Basic and diluted combined pro forma net income (loss) attributable to Pioneer common stockholders

  $(4,175  $1,191

Denominator

    

Historical basic and diluted weighted average Pioneer shares outstanding

   165   167

Shares of Pioneer common stock to be issued

   52   52
  

 

 

   

 

 

 

Pro forma basic and diluted weighted average Pioneer shares outstanding

   217   219

Pro forma basic and diluted net income (loss) per share attributable to common Pioneer stockholders

  $(19.24  $5.44

(l) Represents the approximate number of shares of Pioneer common stock that are to be issued as merger consideration in exchange for Parsley Class A common stock and Parsley LLC units.

NOTE 4. Parsley Historical Financial Statement Presentation

Certain reclassifications and accounting policy adjustments have been made to the historical presentation of Parsley to conform to the financial statement presentation of Pioneer as follows:

PARSLEY ENERGY INC. AND SUBSIDIARIES

UNAUDITED PRO FORMA BALANCE SHEET

AS OF SEPTEMBER 30, 2020

(in millions)

   Parsley
Historical
  Reclassification
Adjustments
  Parsley
Historical,
As Adjusted
 

ASSETS

    

Current assets:

    

Cash and cash equivalents

  $5 $—   $5

Accounts receivable:

    

Trade, net

   —     173  173

Joint interest owners and other

   31  (31  —   

Oil, natural gas and NGL

   142  (142  —   

Inventories

   —     15  15

Derivatives

   81  —     81

Other

   11  —     11
  

 

 

  

 

 

  

 

 

 

Total current assets

   270  15  285
  

 

 

  

 

 

  

 

 

 

Oil and gas properties, using the successful efforts method of accounting:

    

Oil and natural gas properties, successful efforts method

   7,533  (7,533  —   

Proved properties

   —     4,565  4,565

Unproved properties

   —     2,968  2,968

Accumulated depletion, depreciation and amortization

   (250  —     (250
  

 

 

  

 

 

  

 

 

 

Total oil and gas properties, net

   7,283  —     7,283
  

 

 

  

 

 

  

 

 

 

Other property and equipment, net

   196  (15  181

Operating lease right-of-use assets

   86  —     86

Derivatives

   3  —     3

Other assets

   7  (7  —   
  

 

 

  

 

 

  

 

 

 
  $7,845 $(7 $7,838
  

 

 

  

 

 

  

 

 

 

LIABILITIES AND EQUITY

    

Current liabilities:

    

Accounts payable:

    

Accounts payable and accrued expenses

  $280 $(280 $—  

Trade

   —     404  404

Due to affiliates

   —     11  11

Interest payable

   —     42  42

Derivatives

   107  —     107

Revenue and severance taxes payable

   177  (177  —   

Operating leases

   40   40

Other

   4  —     4
  

 

 

  

 

 

  

 

 

 

Total current liabilities

   608  —     608
  

 

 

  

 

 

  

 

 

 

Long-term debt

   2,996  (7  2,989

Derivatives

   25  —     25

Deferred income taxes

   9  —     9

Operating leases

   50  —     50

Financing lease liabilities

   2  (2  —   

Asset retirement obligations

   28  (28  —   

Other liabilities

   —     30  30

Equity:

    

Common stock:

    

Common stock

   —     4  4

Class A

   3  (3  —   

Class B

   1  (1  —   

Additional paid-in capital

   6,971  —     6,971

Treasury Stock

   (11  —     (11

Retained earnings

   (3,148  —     (3,148
  

 

 

  

 

 

  

 

 

 

Total equity attributable to common stockholders

   3,816  —     3,816

Noncontrolling interest in consolidated subsidiaries

   311  —     311
  

 

 

  

 

 

  

 

 

 

Total equity

   4,127  —     4,127

Commitments and contingencies

    
  

 

 

  

 

 

  

 

 

 
  $7,845 $(7 $7,838
  

 

 

  

 

 

  

 

 

 

PARSLEY ENERGY INC. AND SUBSIDIARIES

UNAUDITED PRO FORMA STATEMENT OF OPERATIONS

NINE MONTHS ENDED SEPTEMBER 30, 2020

(in millions)

   Parsley
Historical
  Reclassification
Adjustments
  Parsley
Historical,
As Adjusted
 

Revenues and other income:

    

Oil and gas

  $—   $1,222 $1,222

Oil sales

   1,089  (1,089  —   

Natural gas sales

   36  (36  —   

Natural gas liquids sales

   97  (97  —   

Interest and other

   10  60  70

Derivative gain (loss), net

   —     179  179
  

 

 

  

 

 

  

 

 

 
   1,232  239  1,471
  

 

 

  

 

 

  

 

 

 

Costs and expenses:

    

Oil and gas production

   —     232  232

Lease operating expenses

   189  (189  —   

Transportation and processing costs

   51  (51  —   

Production and ad valorem taxes

   92  —     92

Depletion, depreciation and amortization

   530  —     530

Impairment of oil and gas properties

   4,374  —     4,374

Exploration and abandonments

   572  —     572

General and administrative

   106  —     106

Accretion of discount on asset retirement obligations

   1  —     1

Interest

   —     123  123

Other

   —     116  116

Acquisition costs

   15  (15  —   

Rig termination costs

   15  (15  —   

Restructuring and other termination costs

   46  (46  —   

Other operating expenses

   17  (17  —   
  

 

 

  

 

 

  

 

 

 
   6,008  138  6,146
  

 

 

  

 

 

  

 

 

 

Operating Income

   (4,776  101  (4,675
  

 

 

  

 

 

  

 

 

 

Other Income (Expense)

    

Interest expense, net

   (123  123  —   

Prepayment premium on extinguishment of debt

   (21  21  —   

Derivative income (loss)

   179  (179  —   

Change in TRA liability

   71  (71  —   

Other income (expense)

   (5  5  —   
  

 

 

  

 

 

  

 

 

 

Total other income (expense), net

   101  (101  —   
  

 

 

  

 

 

  

 

 

 

Loss before income taxes

   (4,675  —     (4,675

Income tax benefit

   574  —     574
  

 

 

  

 

 

  

 

 

 

Net loss

   (4,101  —     (4,101

Net loss attributable to noncontrolling interests

   400  —     400
  

 

 

  

 

 

  

 

 

 

Net loss attributable to common stockholders

  $(3,701 $—   $(3,701
  

 

 

  

 

 

  

 

 

 

PARSLEY ENERGY INC. AND SUBSIDIARIES

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

YEAR ENDED DECEMBER 31, 2019

(in millions)

   Parsley
Pro Forma (i)
  Reclassification
Adjustments
  Parsley
Pro Forma,
As Adjusted
 

Revenues and other income:

    

Oil and gas

  $—   $2,544 $2,544

Oil sales

   2,335  (2,335  —   

Natural gas sales

   39  (39  —   

Natural gas liquids sales

   170  (170  —   

Interest and other

   9  (5  4

Derivative gain (loss), net

   —     (274  (274

Gain (loss) on disposition of assets, net

   —     2  2
  

 

 

  

 

 

  

 

 

 
   2,553  (277  2,276
  

 

 

  

 

 

  

 

 

 

Costs and expenses:

    

Oil and gas production

   —     284  284

Lease operating expenses

   249  (249  —   

Transportation and processing costs

   41  (41  —   

Production and ad valorem taxes

   170  —     170

Depletion, depreciation and amortization

   947  —     947

Impairment of oil and gas properties

   47  —     47

Exploration and abandonments

   100  —     100

General and administrative

   210  —     210

Accretion of discount on asset retirement obligations

   2  —     2

Interest

   —     171  171

Other

   —     29  29

(Gain) loss on sale of property

   (2  2  —   

Rig termination costs

   13  (13  —   

Restructuring and other termination costs

   2  (2  —   

Other operating expenses

   12  (12  —   
  

 

 

  

 

 

  

 

 

 
   1,791  169  1,960
  

 

 

  

 

 

  

 

 

 

Operating Income

   762  (446  316
  

 

 

  

 

 

  

 

 

 

Other Income (Expense):

    

Interest expense, net

   (171  171  —   

Derivative income (loss)

   (274  274  —   

Interest income

   1  (1  —   

Other income (expense)

   (2  2  —   
  

 

 

  

 

 

  

 

 

 

Total other income (expense), net

   (446  446  —   
  

 

 

  

 

 

  

 

 

 

Income before income taxes

   316  —     316

Income tax provision

   (74  —     (74
  

 

 

  

 

 

  

 

 

 

Net income

   242  —     242

Net income attributable to noncontrolling interests

   (31  —     (31
  

 

 

  

 

 

  

 

 

 

Net income attributable to common stockholders

  $211 $—   $211
  

 

 

  

 

 

  

 

 

 

(i)

As reported in the Parsley pro forma financial information for the year ended December 31, 2019, as disclosed in Parsley’s Current Report on Form 8-K that was filed with the SEC on April 10, 2020, which is incorporated by reference into this joint proxy statement/prospectus to give effect to Parsley’s acquisition of Jagged Peak.

NOTE 5. Supplemental Pro Forma Oil, NGL and Gas Reserves Information

The following tables present the estimated pro forma combined net proved developed and undeveloped, oil, NGL and gas reserves as of December 31, 2012,2019, along with a summary of changes in quantities of proved reserves during the year ended December 31, 2019. The proved undeveloped reserves of Parsley are based on Parsley’s development plans and reserve estimation methodologies. Because Pioneer will develop such proved undeveloped reserves in accordance with its own development plan and, in the future, will estimate proved undeveloped reserves in accordance with its own methodologies, the estimates presented herein for Parsley may not be representative of Pioneer’s future proved reserve estimates with respect to these properties or the reserve estimates Pioneer would have reported if it had owned such properties as of December 31, 2019. Pioneer is currently undertaking an analysis to further refine the combined company’s pro forma reserve information that has not yet been completed. The preliminary pro forma reserve information set forth below gives effect to the mergers as if they had been completed on January 1, 2019. The Pioneer historical information is based on Pioneer’s consolidated financial statements as of and for the year ended December 31, 2019. The Parsley pro forma information gives effect to its acquisition of Jagged Peak, as disclosed in Parsley’s Current Report on Form 8-K that was filed with the SEC on April 10, 2020. The associated reserves of Jagged Peak included in Parsley’s pro forma reserve estimates as of December 31, 2019 are based on Jagged Peak’s development plans and reserve estimation methodologies. Because Parsley planned to develop such proved undeveloped reserves in accordance with its own development plan and to estimate proved undeveloped reserves in accordance with its own methodologies, the estimates for Jagged Peak included in Parsley’s pro forma reserve estimates as of December 31, 2019 may not be representative of the reserve estimates Parsley would have reported if it had owned such properties as of December 31, 2019.

Oil Reserves (MBbls)  Pioneer
Historical
   Parsley
Pro Forma
   Pro Forma
Combined
 

Total Proved Reserves:

      

Balance, January 1, 2019

   565,010   386,150   951,160

Production

   (77,509   (42,612   (120,121

Revisions of previous estimates

   (30,216   (47,292   (77,508

Extensions and discoveries

   167,022   134,123   301,145

Sales of minerals-in-place

   (20,603   (1,651   (22,254

Purchases of minerals-in-place

   46   414   460
  

 

 

   

 

 

   

 

 

 

Balance, December 31, 2019

   603,750   429,132   1,032,882
  

 

 

   

 

 

   

 

 

 

Proved Developed Reserves:

      

Balance, January 1

   521,579   225,068   746,647

Balance, December 31

   571,293   270,150   841,443

Proved Undeveloped Reserves:

      

Balance, January 1

   43,431   161,082   204,513

Balance, December 31

   32,457   158,982   191,439

NGL Reserves (MBbls)  Pioneer
Historical
   Parsley
Pro Forma
   Pro Forma
Combined
 

Total Proved Reserves:

      

Balance, January 1, 2019

   240,914   145,700   386,614

Production

   (26,398   (12,929   (39,327

Revisions of previous estimates

   29,415   (6,510   22,905

Extensions and discoveries

   60,069   41,312   101,381

Sales of minerals-in-place

   (22,032   (793   (22,825

Purchases of minerals-in-place

   15   114   129
  

 

 

   

 

 

   

 

 

 

Balance, December 31, 2019

   281,983   166,894   448,877
  

 

 

   

 

 

   

 

 

 

Proved Developed Reserves:

      

Balance, January 1

   219,730   89,554   309,284

Balance, December 31

   268,468   108,132   376,600

Proved Undeveloped Reserves:

      

Balance, January 1

   21,184   56,146   77,330

Balance, December 31

   13,515   58,762   72,277
Gas Reserves (MMcf)  Pioneer
Historical
   Parsley
Pro Forma
   Pro Forma
Combined
 

Total Proved Reserves:

      

Balance, January 1, 2019

   1,458,574   652,552   2,111,126

Production

   (145,026   (61,582   (206,608

Revisions of previous estimates

   94,767   40,183   134,950

Extensions and discoveries

   293,507   175,910   469,417

Sales of minerals-in-place

   (202,401   (4,222   (206,623

Purchases of minerals-in-place

   92   609   701
  

 

 

   

 

 

   

 

 

 

Balance, December 31, 2019

   1,499,513   803,450   2,302,963
  

 

 

   

 

 

   

 

 

 

Proved Developed Reserves:

      

Balance, January 1

   1,330,852   408,751   1,739,603

Balance, December 31

   1,429,417   530,657   1,960,074

Proved Undeveloped Reserves:

      

Balance, January 1

   127,722   243,801   371,523

Balance, December 31

   70,096   272,793   342,889
Total Reserves (MBOE)  Pioneer
Historical
   Parsley
Pro Forma
   Pro Forma
Combined
 

Total Proved Reserves:

      

Balance, January 1, 2019

   1,049,020   640,609   1,689,629

Production

   (128,078   (65,805   (193,883

Revisions of previous estimates

   14,994   (47,106   (32,112

Extensions and discoveries

   276,009   204,754   480,763

Sales of minerals-in-place

   (76,369   (3,148   (79,517

Purchases of minerals-in-place

   76   630   706
  

 

 

   

 

 

   

 

 

 

Balance, December 31, 2019

   1,135,652   729,934   1,865,586
  

 

 

   

 

 

   

 

 

 

Proved Developed Reserves:

      

Balance, January 1

   963,118   382,747   1,345,865

Balance, December 31

   1,077,997   466,725   1,544,722

Proved Undeveloped Reserves:

      

Balance, January 1

   85,902   257,862   343,764

Balance, December 31

   57,655   263,209   320,864

Standardized measure of discounted future net cash flows

The following table presents the estimated pro forma standardized measure of discounted future net cash flows (the “pro forma standardized measure”) at December 31, 2019. The pro forma standardized measure information set forth below gives effect to the mergers as if they had been completed on January 1, 2019. The disclosures below were determined by referencing the “Standardized Measure of Discounted Future Net Cash Flows” reported in the notes to the consolidated financial statements of Pioneer contained in the Pioneer 2019 Annual Report on Form 10-K and the unaudited pro forma combined financial information of Parsley as of and for the year ended December 31, 2019, adjusted for Parsley’s acquisition of Jagged Peak on January 10, 2020, as reflected in its Current Report on Form 8-K that was filed with the SEC on April 10, 2020, which is incorporated by reference into this joint proxy statement/prospectus. An explanation of the underlying methodology applied, as required by SEC regulations, can be found within the aforementioned notes to the consolidated financial statements of Pioneer, the pro forma combined financial information of Parsley and other documents that have been incorporated by reference. The calculations assume the continuation of existing economic, operating and contractual conditions at December 31, 2019. The Parsley information included in the following tables includes immaterial reclassification adjustments and rounding differences to amounts previously reported to conform to Pioneer’s presentation.

  Pioneer
Historical
  Parsley
Pro Forma
  Pro Forma
Combined
 

Oil and gas producing activities:

   

Future cash inflows

 $40,902 $26,015 $66,917

Future development costs

  (1,858  (3,140  (4,998

Future production costs

  (19,687  (8,081  (27,768

Future income tax expenses

  (1,096  (1,851  (2,947

Standardized measure of future net cash flows

  18,261  12,942  31,203

Ten percent annual discount factor

  (8,527  (6,617  (15,144
 

 

 

  

 

 

  

 

 

 

Standardized measure of discounted future net cash flows

 $9,734 $6,325 $16,059

The following estimated pro forma standardized measure is not necessarily indicative of the results that might have occurred had the mergers been completed on January 1, 2019 and is not intended to be a projection of future results. Future results may vary significantly from the results reflected because of various factors, including certain of those discussed under the heading “Item 1A. Risk Factors” included in the Pioneer 2019 Annual Report on Form 10-K. The pro forma standardized measure of discounted future net cash flows relating to proved oil, NGL and gas reserves of 1.1 billion BOE. For the year ended December 31, 2012, Pioneer had net income attributable to common stockholders of $192.3 million, or $1.50 per diluted share, and revenues and other income of $3.2 billion. For the six months ended June 30, 2013, Pioneer had net income attributable to common stockholders of $437.9 million, or $3.19 per diluted share, and revenues and other income of $2.0 billion.

Pioneer’s executive offices are located at 5205 N. O’Connor Blvd., Suite 200, Irving, Texas 75039. Pioneer’s telephone number is (972)  444-9001.

Pioneer Southwest’s Business

This section summarizes information from Pioneer Southwest’s Annual Report on Form 10-K for the year ended December 31, 2012, Pioneer Southwest’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2013, and the other filings incorporated into this proxy statement/prospectus by reference. For a more detailed discussion of Pioneer Southwest’s business, please read the “Business and Properties” section contained in Pioneer Southwest’s 2012 Annual Report on Form 10-K and the other filings incorporated into this proxy statement/prospectus by reference.

Pioneer Southwest is a Delaware limited partnership that was formed in June 2007 by Pioneer to own, acquire, explore and develop oil and gas assets in Pioneer Southwest’s area of operations. Pioneer Southwest’s

area of operations consists of onshore Texas and eight counties in the southeast region of New Mexico. Pioneer Southwest’s common units are listed and traded on the NYSE under the symbol “PSE.”

All of Pioneer Southwest’s properties are located in the Spraberry field. Pioneer Southwest’s only operating segment is oil and gas producing activities. At December 31, 2012, Pioneer Southwest had proved oil, NGL and gas reserves of 49.4 million BOE. For the year ended December 31, 2012, Pioneer Southwest had net income of $107.6 million, or $3.00 per common unit, and total revenues and other income of $208.3 million. For the six months ended June 30, 2013, Pioneer Southwest had net income of $47.1 million, or $1.31 per common unit, and total revenues and other income of $105.0 million.

Pioneer Southwest’s executive offices are located at 5205 N. O’Connor Blvd., Suite 200, Irving, Texas 75039. Pioneer Southwest’s telephone number is (972) 969-3586.

CERTAIN RELATIONSHIPS; INTERESTS OF CERTAIN PERSONS IN THE MERGER

Relationship of Pioneer and Pioneer Southwest

General

Pioneer and Pioneer Southwest are closely related. Pioneer formed Pioneer Southwest in 2007, and Pioneer Southwest completed its initial public offering in 2008. The operations and activities of Pioneer Southwest are managed by its general partner, Pioneer Southwest GP, a subsidiary of Pioneer USA. Pioneer USA owns a 52.5% interest in Pioneer Southwest, including the 0.1% general partner interest. Pioneer Southwest, its operating subsidiary and Pioneer Southwest GP have no employees. Pioneer Southwest, Pioneer Southwest GP and Pioneer have entered into an administrative services agreement pursuant to which Pioneer manages all of Pioneer Southwest’s assets and performs administrative services for Pioneer Southwest. In addition, Pioneer USA is the operator of Pioneer Southwest’s wells. Asas of December 31, 2012, Pioneer had 3,667 full time employees, 1,158 of whom are dedicated to drilling and production activities in the Spraberry field. For more information regarding the administrative services agreement, please read “Certain Relationships; Interests of Certain Persons in the Merger — Relationship of Pioneer and Pioneer Southwest — Agreements Between Pioneer and Pioneer Southwest — Administrative Services Agreement,” below.

Overlapping Officers and Directors of Pioneer and Pioneer Southwest GP

Each executive officer of Pioneer Southwest GP2019 is also an executive officer of Pioneer. Additionally, Richard P. Dealy and Danny L. Kellum are executive officers and directors of Pioneer Southwest GP and executive officers of Pioneer, Timothy L. Dove is an executive officer of both Pioneer and Pioneer Southwest GP as well as a director of Pioneer, and Scott D. Sheffield is the Chairman of the Board and Chief Executive Officer of both Pioneer Southwest GP and Pioneer. Persons who are directors or officers of both Pioneer and Pioneer Southwest GP owe duties both to the stockholders of Pioneer and to the Pioneer Southwest unitholders, and may have interests in the merger that are different than yours.

The directors and executive officers of each of Pioneer and Pioneer Southwest GP prior to the merger are expected to continue as the directors and executive officers of Pioneer and Pioneer Southwest GP, respectively, following the merger, with the exception of the four independent directors of Pioneer Southwest GP who are expected to resign following the merger.

The following chart sets forth certain information, as of the date of this proxy statement/prospectus regarding the directors and executive officers of each of Pioneer and Pioneer Southwest GP.follows:

 

Name

AgePioneer
Position
Pioneer Southwest GP
Position

Scott D. Sheffield

61Chairman of the Board of Directors
and Chief Executive Officer
Chairman of the Board of Directors
and Chief Executive Officer

Timothy L. Dove

56President and Chief Operating
Officer, Director
President and Chief Operating
Officer

Mark S. Berg

55Executive Vice President and
General Counsel
Executive Vice President and
General Counsel

Chris J. Cheatwood

53Executive Vice President, Business
Development and Geoscience
Executive Vice President, Business
Development and Technology

Richard P. Dealy

47Executive Vice President and Chief
Financial Officer
Executive Vice President, Chief
Financial Officer, Treasurer and
Director

William F. Hannes

54Executive Vice President, Southern
Wolfcamp Operations
None

Danny L. Kellum

58Executive Vice President, Permian
Operations
Executive Vice President, Permian
Operations and Director

Frank W. Hall

62Vice President and Chief
Accounting Officer
Vice President and Chief Accounting
Officer

Thomas D. Arthur

69DirectorNone

Edison C. Buchanan

59DirectorNone

Andrew F. Cates

43DirectorNone

R. Hartwell Gardner

78DirectorNone

Larry R. Grillot

67DirectorNone

Stacy P. Methvin

56DirectorNone

Charles E. Ramsey, Jr.

77DirectorNone

Frank A. Risch

70DirectorNone

J. Kenneth Thompson

61DirectorNone

Jim A. Watson

74DirectorNone

Phoebe A. Wood

60DirectorNone

Phillip A. Gobe (1)

60NoneDirector

Alan L. Gosule (1)

72NoneDirector

Royce W. Mitchell (1)

59NoneDirector

Arthur L. Smith (1)

60NoneDirector

(1)Member of the Pioneer Southwest Conflicts Committee.
   Pioneer
Historical
   Parsley
Pro Forma
   Pro Forma
Combined
 

Oil and gas sales, net of production costs

  $(3,569  $(2,085  $(5,654

Revisions of previous estimates:

      

Net changes in prices and production costs

   (2,935   (2,497   (5,432

Changes in future development costs

   (454   108   (346

Revisions in quantities

   (174   (744   (918

Accretion of discount

   985   861   1,846

Extensions, discoveries and improved recovery

   4,541   2,276   6,817

Development costs incurred during the period

   183   675   858

Sales of minerals-in-place

   (541   (21   (562

Purchases of minerals-in-place

   —      8   8
  

 

 

   

 

 

   

 

 

 

Change in present value of future net revenues

   (1,964   (1,419   (3,383

Net change in present value of future income taxes

   365   307   672
  

 

 

   

 

 

   

 

 

 
   (1,599   (1,112   (2,711

Balance, beginning of year

   11,333   7,437   18,770

Balance, end of year

  $9,734  $6,325  $16,059

Agreements Between Pioneer and Pioneer Southwest

Set forth below are descriptions of certain agreements between Pioneer and Pioneer Southwest, some of which were entered into in connection with Pioneer Southwest’s initial public offering in May 2008. The full text of the agreements have been filed by Pioneer Southwest as exhibits to its filings with the SEC and are available for review without charge on the SEC’s website at www.sec.gov.

Administrative Services Agreement

Pioneer, Pioneer Southwest and Pioneer Southwest GP have entered into an administrative services agreement (the “Administrative Services Agreement”) pursuant to which Pioneer agreed to perform, either itself or through its affiliates or other third parties, administrative services for Pioneer Southwest, and Pioneer Southwest agreed to reimburse Pioneer for its expenses incurred in providing such services. Currently, expenses are reimbursed based on a methodology of determining Pioneer Southwest’s share, on a per BOE basis, of certain of the general and administrative costs incurred by Pioneer. Under this methodology, the per BOE cost for services during any period is determined by dividing (i) the aggregate general and administrative costs, determined in accordance with GAAP, of Pioneer (excluding Pioneer Southwest’s general and administrative costs), for its United States operations during such period, excluding such costs directly attributable to Pioneer’s Alaskan operations, by (ii) the sum of (x) the United States production during such period of Pioneer Southwest and Pioneer, excluding any production attributable to Alaskan operations, plus (y) the volumes delivered by Pioneer and Pioneer Southwest under all volumetric production payment obligations during such period (which obligations terminated on December 31, 2010). The costs of all awards to Pioneer Southwest’s independent directors under the Pioneer Southwest LTIP are borne by Pioneer Southwest and are not included in the foregoing formula. The administrative fee is determined by multiplying the per BOE costs by Pioneer Southwest’s total production (including volumes delivered by Pioneer Southwest under volumetric production payment obligations, if any) during such period. The administrative fee may be based on amounts estimated by Pioneer if actual amounts are not available. In addition, Pioneer is reimbursed for any out-of-pocket expenses it incurs on Pioneer Southwest’s behalf. The Administrative Services Agreement can be terminated by Pioneer Southwest or Pioneer at any time upon 90 days notice. Pioneer Southwest paid a total of $4.9 million to Pioneer under this agreement during 2012.

Omnibus Agreement, Omnibus Operating Agreement and Operating Agreements

Pioneer is the operator of all of Pioneer Southwest’s properties. Upon the closing of Pioneer Southwest’s initial public offering in May 2008, Pioneer Southwest and Pioneer entered into an Omnibus Agreement (the “Omnibus Agreement”) and an Omnibus Operating Agreement (the “IPO Omnibus Operating Agreement”) to govern their relationship with respect to the properties Pioneer Southwest acquired in connection with the initial public offering. In addition, in connection with the acquisition of properties by Pioneer Southwest from Pioneer in August 2009, Pioneer Southwest and Pioneer entered into an Omnibus Operating Agreement (the “2009 Omnibus Operating Agreement”) to govern their relationship with respect to the properties Pioneer Southwest acquired in connection with that acquisition.

Area of Operations.

The Omnibus Agreement limits Pioneer Southwest’s area of operations to onshore Texas and the southeast region of New Mexico, comprising Chaves, Curry, De Baca, Eddy, Lincoln, Lea, Otero and Roosevelt counties. Pioneer has the right to expand Pioneer Southwest’s area of operations, but has no obligation to do so.

Operations.

As stated above, Pioneer is the operator of all of Pioneer Southwest’s properties, and Pioneer and Pioneer Southwest have entered into operating agreements with respect to Pioneer Southwest’s properties. Pursuant these agreements, Pioneer Southwest pays Pioneer overhead charges (COPAS fees) associated with operating Pioneer

Southwest’s oil and gas properties. Overhead charges are usually paid by third parties to the operator of a well pursuant to operating agreements. Pioneer Southwest also pays Pioneer for its direct and indirect expenses that are chargeable to the wells under their respective operating agreements.

In addition, pursuant to the IPO Omnibus Operating Agreement and the 2009 Omnibus Operating Agreement, Pioneer Southwest has agreed to certain restrictions and limitations on its ability to exercise certain rights that would otherwise be available to it under the operating agreements that govern Pioneer Southwest’s properties where Pioneer is the operator. For example, Pioneer Southwest will not object to attempts by Pioneer to develop the leasehold acreage surrounding Pioneer Southwest’s wells; Pioneer Southwest is restricted in its ability to remove Pioneer as the operator; Pioneer-proposed operations will take precedence over any conflicting operations that Pioneer Southwest proposes; and Pioneer Southwest must allow Pioneer to use certain of Pioneer Southwest’s production facilities in connection with other properties operated by Pioneer, subject to capacity limitations.

As previously noted, Pioneer Southwest’s interest in a number of its wells is limited to only those rights that are necessary to produce hydrocarbons from those particular wellbores (often referred to as wellbore interests), and do not include the right to drill additional wells (other than replacement wells or down-spaced wells, such as 20-acre infill wells) within the area covered by the mineral or leasehold interest to which that wellbore relates. In addition, Pioneer Southwest’s operations with respect to these wellbore interests are limited to the interval from the surface to the depth of the deepest producing perforation in the wellbore, plus an additional 100 feet as a vertical easement for operating purposes only. The IPO Omnibus Operating Agreement gives Pioneer Southwest the contractual right to participate in down-spaced wells proposed by Pioneer on the same working interest percentage basis as it has in the related wellbore interest. However, the agreement provides that, if the new well proposed by Pioneer is to be drilled to deeper formations than Pioneer Southwest has a right to with respect to the related wellbore interest and completed in or commingled with production from a producing perforation in the Pioneer Southwest wellbore, Pioneer Southwest has the right to participate in the new well and would be required to pay the fair market value for its pro rata share of the interests associated with those greater depths. As of December 31, 2012, Pioneer Southwest had elected to participate in three such down-spaced wells, and of the wells to be drilled in 2013, Pioneer Southwest anticipates it will participate in up to five such down-spaced wells. Pioneer Southwest, with the approval of the Pioneer Southwest Conflicts Committee, and Pioneer have agreed to assign a fair market value to the additional depths based on the average cost of Pioneer’s acquisition of the right to drill in the surrounding areas over the prior 12 months, subject to an independent review of the supporting data. In 2012, the cost to Pioneer Southwest for such additional rights totaled $62,000, and Pioneer Southwest anticipates that the aggregate cost for such additional rights for the five wells to be drilled in 2013 will be approximately $100,000.

2012 Leasehold Acquisition

During 2012, Pioneer entered into agreements with an unaffiliated third party to enter into oil and gas leases for certain undeveloped acreage in Midland County in West Texas, and agreed with Pioneer Southwest to assign an undivided 94% of Pioneer’s interest in the leases in consideration for the payment to Pioneer of a pro rata share of Pioneer’s acquisition costs. In October 2012, Pioneer completed oil and gas leases for 3,063 acres and assigned to Pioneer Southwest an undivided 94% of Pioneer’s interest in the leases in consideration for the payment to Pioneer of a pro rata share of Pioneer’s acquisition costs for a total of $6.3 million. In August 2013, Pioneer completed the oil and gas lease for the remaining 1,200 acres and assigned to Pioneer Southwest an undivided 94% of Pioneer’s interest in the lease in consideration for the payment to Pioneer of a pro rata share of Pioneer’s acquisition costs for a total of $2.5 million.

Gas Processing Arrangements

Pioneer owns an approximate 27% interest in the Midkiff/Benedum gas processing plant and an approximate 30% interest in the Sale Ranch gas processing plant. These plants process wet gas from producing wells and retain as compensation 16% and 20%, respectively, of the dry gas residue and NGL value. Substantially all of Pioneer Southwest’s total NGL and gas sales revenues in 2012 were from the sale of NGL and gas processed through the Midkiff/Benedum and Sale Ranch gas processing plants.

Tax Sharing Agreement

Pioneer Southwest and Pioneer have entered into a Tax Sharing Agreement, pursuant to which Pioneer Southwest agreed to pay Pioneer for its share of state and local income and other taxes, currently only the Texas Margin tax, for which Pioneer Southwest’s results are included in a combined or consolidated tax return filed by Pioneer. During 2012, Pioneer Southwest recorded a payable to Pioneer of $70,123 under this agreement.

First Amended and Restated Agreement of Limited Partnership of Pioneer Southwest Energy Partners L.P.

Pioneer Southwest’s partnership agreement was entered into by Pioneer Southwest GP, in its capacity as the general partner of Pioneer Southwest and on behalf of the limited partners of Pioneer Southwest, and Pioneer USA, as the “Organizational Limited Partner,” on May 6, 2008, and governs the rights of the Pioneer Southwest unitholders.

Pioneer Southwest’s 2008 Long-Term Incentive Plan

The Pioneer Southwest GP Board has adopted the Pioneer Southwest LTIP for directors, employees and consultants of Pioneer Southwest GP and its affiliates who perform services for Pioneer Southwest, which provides for the granting of incentive awards in the form of options, restricted units, phantom units, unit appreciation rights, unit awards and other unit-based awards. The Pioneer Southwest LTIP limits the number of Pioneer Southwest common units that may be delivered pursuant to awards granted under the Pioneer Southwest LTIP to 3,000,000 Pioneer Southwest common units.

Indemnification Agreements

Pursuant to Indemnification Agreements entered into with each of the independent directors of Pioneer Southwest GP, Pioneer Southwest is required to indemnify each indemnitee to the fullest extent permitted by Pioneer Southwest’s partnership agreement. This means, among other things, that Pioneer Southwest must indemnify the director against expenses (including attorneys’ fees), judgments, penalties, fines and amounts paid in settlement that are actually and reasonably incurred in an action, suit or proceeding by reason of the fact that the person is or was a director of Pioneer Southwest GP or is or was serving at Pioneer Southwest GP’s request as a director, officer, employee or agent of another corporation or other entity if the indemnitee meets the standard of conduct provided in Pioneer Southwest’s partnership agreement. Also, as permitted under Pioneer Southwest’s partnership agreement, the indemnification agreements require Pioneer Southwest to advance expenses in defending such an action provided that the director undertakes to repay the amounts if the person ultimately is determined not to be entitled to indemnification from Pioneer Southwest. Pioneer Southwest will also make the indemnitee whole for taxes imposed on the indemnification payments and for costs in any action to establish the indemnitee’s right to indemnification, whether or not wholly successful.

Interests of DirectorsCOMPARISON OF EQUITYHOLDER RIGHTS

Parsley Class A stockholders and Executive Officers in the Merger

General

In considering the recommendations of the Pioneer Southwest Conflicts Committee and the Pioneer Southwest GP Board with respect to the merger proposal, Pioneer SouthwestParsley LLC unitholders should be aware that certain of the executive officers and directors of Pioneer and Pioneer Southwest GP have interests in the transaction that differ from, or are in addition to, the interests of Pioneer Southwest unitholders generally, including:

All of the directors and officers of Pioneer Southwest GP have the right to indemnification under the organizational documents of Pioneer Southwest GP, the Pioneer Southwest partnership agreement and the merger agreement, and the four independent directors of Pioneer Southwest GP have the right to indemnification under indemnification agreements with Pioneer Southwest. In addition, all of the directors of Pioneer and all of the officers of Pioneer Southwest GP have the right to indemnification under the organizational documents of Pioneer or Pioneer USA and indemnification agreements with Pioneer or Pioneer USA.

Each of the officers that are officers of both Pioneer and Pioneer Southwest GP are expected to continue to serve as officers of Pioneer following the merger.

Each outstanding phantom unit of Pioneer Southwest held by officers of Pioneer Southwest GP will be converted in the merger into an equivalent restricted stock unit of Pioneer common stock, with adjustments in the number of shares to reflect the exchange ratio, but otherwise on the same terms and conditions as were applicable prior to the merger.

Three of the seven directors of Pioneer Southwest GP are executive officers of both Pioneer and Pioneer Southwest GP, and one of these three directors, Scott D. Sheffield, is the Chairman of the Board of Pioneer. All three of these directors ownreceive shares of Pioneer common stock in the mergers. Parsley LLC is a Delaware limited liability company subject to the Delaware Limited Liability Company Act (the “DLLCA”). Pioneer and Parsley are both Delaware corporations subject to the DGCL. If the mergers are completed, the rights of Parsley stockholders and Parsley LLC unitholders who become Pioneer Southwest common units as well as phantom units of Pioneer Southwest.

Certain other Pioneer officers and Pioneer Southwest GP officers own sharesstockholders through the receipt of Pioneer common stock and Pioneer Southwest common units, as well as equity-based benefit plan awards related to Pioneer common stock and Pioneer Southwest common units.

Equity Interests of Pioneer’s and Pioneer Southwest GP’s Directors and Executive Officers in Pioneer Southwest and Pioneer

The following table sets forth the beneficial ownership of the directors and executive officers of Pioneer and Pioneer Southwest GP in the equity of (i) Pioneer Southwest, (ii) Pioneer prior to the merger, and (iii) Pioneer after giving effect to the merger, each as of September 12, 2013:

   Pioneer
Southwest
Common Units
   Shares of
Pioneer
Common Stock
Prior to the
Merger
   Shares of
Pioneer
Common Stock
After the
Merger
 

Directors and Executive Officers of Pioneer and/or Pioneer Southwest

      

Scott D. Sheffield (1)(2)(3)(4)(5)(6)

   26,015     629,478     635,527  

Timothy L. Dove (1)(3)(5)(7)

   8,068     309,710     311,586  

Mark S. Berg (3)(5)(7)(8)

   11,426     75,215     77,872  

Chris J. Cheatwood (1)(2)(3)(5)(9)

   10,000     107,261     109,586  

Richard P. Dealy (1)(3)(5)(6)

   23,822     179,480     185,019  

William F. Hannes (1)(2)(5)(7)

   9,330     75,833     78,003  

Danny L. Kellum (1)(5)(6)

   2,292     29,073     29,606  

Frank W. Hall (5)

   8,000     0     1,860  

Thomas D. Arthur (5)(9)

   0     23,736     23,736  

Edison C. Buchanan (5)

   0     23,949     23,949  

Andrew F. Cates (1)(5)(9)

   0     22,638     22,638  

R. Hartwell Gardner (5)

   0     20,106     20,106  

Larry R. Grillot (5)

   0     0     0  

Stacy P. Methvin (5)

   0     0     0  

Charles E. Ramsey, Jr. (5)(9)

   0     15,554     15,554  

Frank A. Risch (5)

   0     15,161     15,161  

J. Kenneth Thompson (2)(5)

   0     5,524     5,524  

Jim A. Watson (5)

   0     7,095     7,095  

Phoebe A. Wood (5)

   0     0     0  

Phillip A. Gobe

   23,337     0     5,426  

Alan L. Gosule

   14,318     0     3,329  

Royce W. Mitchell

   12,818     0     2,981  

Arthur L. Smith

   12,818     0     2,981  

(1)Includes the following number of shares of Pioneer common stock held in each respective officer’s or director’s 401(k) account: Mr. Sheffield, 22,009; Mr. Dove, 350; Mr. Cheatwood, 129; Mr. Dealy, 310; Mr. Hannes, 14; Mr. Kellum, 265; and Mr. Cates, 882.

(2)Includes the following number of shares of Pioneer common stock held in each respective officer’s investment retirement account: Mr. Cheatwood, 2,000; Mr. Hannes, 1,516; and Mr. Thompson, 100. Excludes 37,827 shares held for the benefit of Mr. Sheffield through Pioneer’s Nonqualified Deferred Compensation Plan.
(3)Excludes the performance units of Pioneer common stock that will vest if and to the extent predetermined performance targets are achieved.
(4)Includes (i) 30,000 shares of Pioneer common stock owned by a trust whose beneficiaries are members of Mr. Sheffield’s family and for which he serves as trustee, but Mr. Sheffield has no beneficial interest in the trust, and (ii) 30,000 shares of Pioneer common stock owned by a trust whose beneficiaries are members of Mr. Sheffield’s family and for which Mr. Sheffield’s spouse serves as trustee, but Mr. Sheffield has no beneficial interest in the trust.
(5)Includes the following number of (i) unvested restricted shares of Pioneer common stock, or (ii) restricted stock units of Pioneer common stock that will vest within 60 days: Mr. Dove, 45,455; Mr. Berg, 31,398; Mr. Cheatwood, 37,857; Mr. Dealy, 50,145; Mr. Hannes, 27,995; and Mr. Kellum, 4,158; Excludes the following number of restricted stock units of Pioneer common stock that will not vest within 60 days: Mr. Sheffield, 79,748; Mr. Dove, 31,915; Mr. Kellum, 23,580; Mr. Hall, 16,761; Mr. Arthur, 1,332; Mr. Buchanan, 1,421; Mr. Cates, 1,332; Mr. Gardner, 1,421; Dr. Grillot, 2,125; Ms. Methvin, 2,125; Mr. Ramsey, 1,480; Mr. Risch, 1,332; Mr. Thompson, 1,920; Mr. Watson, 1,332; and Ms. Wood, 2,125.
(6)Excludes the following number of unvested Pioneer Southwest phantom units that will vest on the third anniversary of the date of grant (assuming the merger has not closed by or is terminated before such date), subject to the officer’s continuing in the employ of Pioneer Southwest GP: Mr. Sheffield, 65,043; Mr. Dealy, 21,780; and Mr. Kellum, 12,076.
(7)Includes the following number of shares of Pioneer common stock subject to exercisable stock options: Mr. Dove, 63,680; Mr. Berg, 7,120; and Mr. Hannes, 6,200.
(8)Includes 19,668 shares of Pioneer common stock owned by a trust whose beneficiaries are members of Mr. Berg’s family and for which Mr. Berg’s spouse serves as trustee, but Mr. Berg has no beneficial interest in the trust.
(9)Includes the following number of shares of Pioneer common stock held in the names of each respective officer’s or director’s children or in trusts for the benefit of family members: Mr. Cheatwood, 3,750; Mr. Arthur, 22,124; Mr. Cates, 1,354; and Mr. Ramsey 15,554.

Treatment of Pioneer Southwest Equity Awards

At the effective time of the merger, all phantom units representing the right to receive Pioneer Southwest common units issued under the Pioneer Southwest LTIP and outstanding immediately prior to the effective time will be converted into awards of restricted stock units of Pioneer common stock, with the number of Pioneer restricted stock units subject to each converted award to be determined based on the exchange ratio set forth in the merger agreement, rounded down to the nearest whole Pioneer restricted stock unit. The agreements between Pioneer Southwest GP and each such award holder regarding such phantom units will be assumed by Pioneer, and such awards, as converted pursuant to the merger agreement, will continue to be governed, on and after the effective time, by the terms and conditions of such agreements including with respect to the vesting of such awards (subject to applicable adjustments required by the merger agreement after giving effect to the merger), and either by the Pioneer Southwest LTIP, if adopted by Pioneer pursuant to the merger agreement, or else by the Pioneer LTIP.

The merger will have no effect on outstanding options to acquire Pioneer common stock or restricted Pioneer common stock issued under the Pioneer LTIP, which will remain outstanding and subject to the terms of the award agreement by which they were issued and the Pioneer LTIP.

Director and Officer Insurance; Indemnification

The merger agreement requires Pioneer to maintain, or to cause Pioneer USA to maintain, for six years after the effective time of the merger, officers’ and directors’ liability insurance for the benefit of persons who are or

were at any time before the effective time of the mergers covered by the existing directors’ and officers’ liability insurance policies applicable to Pioneer Southwest, Pioneer Southwest GP or any of their subsidiaries, as described more fully under “The Merger Agreement — Covenants — Indemnification; Directors’ and Officers’ Insurance.”

The merger agreement also provides for indemnification, including advancement of expenses by Pioneer after the merger, of directors and officers of Pioneer Southwest GP and Pioneer to the fullest extent authorized or permitted by applicable law, in addition to existing rights, as described more fully under “The Merger Agreement — Covenants — Indemnification; Directors’ and Officers’ Insurance.” These merger agreement provisions are in addition to the indemnification and advancement of expenses provided to each of Pioneer Southwest GP’s directors and officers under the limited liability company agreement of Pioneer Southwest GP and the Pioneer Southwest partnership agreement, under the amended and restated indemnification agreements between Pioneer Southwest, Pioneer Southwest GP and each of the independent Pioneer Southwest GP directors, and under any other existing arrangements.

Projections

The management of Pioneer and Pioneer Southwest GP prepared projections with respect to Pioneer’s and Pioneer Southwest’s anticipated future financial and operating performance. These projections were provided to Evercore for use in connection with the preparation of Evercore’s fairness opinion and related financial advisory services. The projections were also provided to the Pioneer Southwest GP Board.

For additional information about the projections, please read “The Merger — Unaudited Financial Projections of Pioneer and Pioneer Southwest.”

Executive Compensation

Pioneer Southwest is a master limited partnership and does not directly employ any of the individuals responsible for managing or operating Pioneer Southwest’s business. All of the executive officers of Pioneer Southwest GP are executive officers of Pioneer and devote their time as needed to conduct Pioneer Southwest’s business and affairs. The compensation paid by Pioneer to the executive officers of Pioneer Southwest GP is included within the total general and administrative costs incurred by Pioneer, which are allocated to Pioneer Southwest pursuant to a formula under the Administrative Services Agreement. No amounts payable under the Administrative Services Agreement are specifically based on services provided by the executive officers of Pioneer Southwest GP to Pioneer Southwest; rather, the administrative fee generally covers services provided to Pioneer Southwest by Pioneer and there is no direct reimbursement by Pioneer Southwest for the cost of such services.

Pioneer has entered into Severance Agreements and Change in Control Agreements with certain of the executive officers of Pioneer Southwest GP in their capacity as executive officers of Pioneer, and the expenses associated with those agreements are borne by Pioneer and are not reimbursable by Pioneer Southwest except to the extent includable within Pioneer’s total general and administrative costs allocable to Pioneer Southwest pursuant to the Administrative Services Agreement.

None of the executive officers of Pioneer Southwest GP or Pioneer has any agreements or understandings with Pioneer, Pioneer Southwest GP or any other party with respect to any type of compensation (whether present, deferred or contingent) that is based on or otherwise relates to the merger and is reportable under Item 402(t) of Regulation S-K under the Securities Act, and thus no advisory vote pursuant to Rule 14a-21(c) of the Exchange Act is required to be conducted at the Pioneer Southwest special meeting in connection with this proxy/statement prospectus or the merger.

COMPARISON OF THE RIGHTS OF PIONEER STOCKHOLDERS AND PIONEER SOUTHWEST UNITHOLDERS

The following describes the material differences between the rights of Pioneer stockholders and the current rights of Pioneer Southwest unitholders. It is not a complete summary of the provisions affecting, and the differences between, the rights of Pioneer stockholders and Pioneer Southwest unitholders. The rights of Pioneer stockholders are governed by the Delaware General Corporation Law and Pioneer’s certificate of incorporation and bylaws. The rights of Pioneer Southwest unitholders are governed by the Delaware Revised Uniform Limited Partnership Act, as amended from time to time, and any successor to such act (the “Delaware LP Act”), and Pioneer Southwest’s partnership agreement. You should refer to each such document for a complete description of the rights of Pioneer stockholders and Pioneer Southwest unitholders, respectively. If the merger is consummated, Pioneer Southwest unitholders who surrender their Pioneer Southwest common units will become Pioneer stockholders, and their rights as Pioneer stockholders will be governed by the Delaware General Corporation Law and Pioneer’sDGCL, the Pioneer certificate of incorporation and the Pioneer bylaws. For Pioneer’s amendedThe following summary compares the rights of Parsley Class A stockholders and restated certificateParsley LLC unitholders to the rights of incorporation, as amended, please refer to Pioneer’s Registration Statement on Form S-4 dated June 27, 1997, and Pioneer’s Current Report on Form 8-K filedPioneer stockholders.

Rights of Parsley LLC Unitholders

Each holder of shares of Parsley Class B common stock holds an equal number of Parsley LLC units. Parsley LLC units are governed by the Parsley LLC agreement. In accordance with the SEC on May 18, 2012. For Pioneer’s third amendedterms of the Parsley LLC agreement, each Parsley LLC unitholder (other than Parsley) generally has the right to exchange his, her or its Parsley LLC units, together with a corresponding number of shares of Parsley Class B common stock, for shares of Parsley Class A common stock at an exchange ratio of one share of Parsley Class A common stock for each Parsley LLC unit exchanged (subject to conversion rate adjustments for stock splits, stock dividends and restated bylaws, please referreclassifications).

Pursuant to Pioneer’s Current Report on Form 8-K filedthe Parsley LLC agreement, Parsley LLC shall be authorized to issue from time to time such number of Parsley LLC units and other equity securities as Parsley, the managing member of Parsley LLC, shall determine. Subject to certain exceptions, if at any time Parsley issues Parsley Class A common stock or any other equity security (other than shares of Parsley Class B common stock), Parsley LLC shall be required to issue one Parsley LLC unit (or such other equity security of Parsley LLC if Parsley issues equity securities other than Parsley Class A common stock) and the net proceeds received by Parsley with respect to the SEC on May 18, 2012. Forcorresponding share of Parsley Class A common stock or other equity security, if any, shall be concurrently transferred to Parsley LLC. Parsley may not redeem, repurchase or otherwise acquire any shares of Parsley Class A common stock unless substantially simultaneously therewith, Parsley LLC redeems, repurchases or otherwise acquires from Parsley an equal number of Parsley LLC units for the same price per security.

No member of Parsley LLC has any voting right except with respect to matters specifically reserved for a member vote under the DLLCA and matters expressly requiring approval of members pursuant to the Parsley LLC agreement.

Parsley is the sole managing member of Parsley LLC. Except as otherwise required by law, (i) Parsley has full and complete charge of all affairs of Parsley LLC, (ii) the management and control of all of Parsley LLC’s business, activities and operations rests exclusively with Parsley and (iii) the members of Parsley LLC other than Parsley do not participate in the control, management, direction or operation of the activities or affairs of Parsley LLC and have no power to act for or bind Parsley LLC. Under the Parsley LLC agreement, Parsley acknowledges that it owes to the members of Parsley LLC the same fiduciary duties it would owe to the stockholders of a Delaware corporation if it were a member of the board of directors of such corporation and the members were stockholders of such corporation. Parsley takes action through the Parsley board, and, as discussed below, the members of the Parsley board owe fiduciary duties to Parsley stockholders.

Comparison of Stockholder Rights

The following summary is not a complete statement of the rights of Pioneer Southwest’s partnership agreement, please referstockholders or Parsley stockholders or a complete description of the specific provisions referred to Pioneer Southwest’s Current Report on Form 8-K filed with the SEC on May 9, 2008.below. This summary is qualified in its entirety by reference to the Delaware General Corporation LawDGCL and the Delaware LP Act, Pioneer’s certificateand Parsley’s governing corporate documents, which Parsley stockholders should read. For information on how copies of incorporation and bylaws and the Pioneer Southwest partnership agreement.these documents may be obtained, please see “Where You Can Find More Information.”

PioneerParsley
Authorized Capital Stock

 

PIONEER

PIONEER SOUTHWEST

Purpose and TermPioneer’s certificate of Existence
The purpose for whichincorporation authorizes Pioneer was organized is to engage in any and all lawful acts and activities for which corporations may be organized under the Delaware General Corporation Law with the power to perform all lawful acts and activities.Pioneer Southwest’s stated purpose under Pioneer Southwest’s partnership agreement is to engage, directly or indirectly, in any business activity that is approved by Pioneer Southwest GP and that lawfully may be conducted by a limited partnership organized under Delaware law and, in connection therewith, to exercise all of the rights and powers conferred upon Pioneer Southwest pursuant to the agreements relating to such business activity, and do anything necessary or appropriate to the foregoing, including the making of capital contributions or loans to its affiliates or its subsidiaries.
Pioneer has a perpetual existence.Pioneer Southwest has a perpetual existence unless and until terminated pursuant to the terms of the Pioneer Southwest partnership agreement.
Pursuant to the Omnibus Agreement, Pioneer Southwest’s operating activity is limited. Please read “Certain Relationships; Interests of Certain Persons in the Merger — Relationship of Pioneer and Pioneer Southwest — Agreements Between Pioneer and Pioneer Southwest — Omnibus Agreement, Omnibus Operating Agreement and Operating Agreements.”

PIONEER

PIONEER SOUTHWEST

Authorized Equity Securities
Pioneer is authorized to issue 500,000,000 shares of common stock, par value $0.01 per share, and 100,000,000 shares of preferred stock, par value $0.01 per share,share. As of which 500,000[], 2020, there were [] shares of Pioneer common stock issued and outstanding and no shares of preferred stock have been designated Seriesissued and outstanding.

Parsley’s certificate of incorporation authorizes Parsley to issue 600,000,000 shares of Class A Junior Participating Preferred Stock,common stock, par value $0.01 per share, 125,000,000 shares of Class B common stock, par value $0.01 per share, and 50,000,000 shares of preferred stock, par value $0.01 per share. As of September 12, 2013,[], 2020, there were 138,864,386[] shares of PioneerParsley Class A common stock issued and outstanding, [] shares of Parsley Class B common stock issued and outstanding and no shares of preferred stock outstanding. For a more detailed description of Pioneer’s common stock, please refer to Pioneer’s Description of Capital Stock set forth in Pioneer’s Current Report on Form 8-K filed with the SEC on September 16, 2013issued and incorporated by reference herein.

Pioneer Southwest is authorized to issue an unlimited number of additional securities of Pioneer Southwest and options, rights, warrants and appreciation rights relating to securities of Pioneer Southwest for any purpose at any time and from time to time to such persons for such consideration and on such terms and conditions as Pioneer Southwest GP shall determine, all without the approval of any Pioneer Southwest unitholder. Each additional security of Pioneer Southwest or option, right, warrant or appreciation right relating to such security authorized to be issued by Pioneer Southwest GP pursuant to Pioneer Southwest’s partnership agreement may be issued in one or more classes, or one or more series of any such classes, with such designations, preferences, rights, powers and duties (which may be senior to existing classes and series of securities of Pioneer Southwest), as shall be fixed by Pioneer Southwest GP.outstanding.

Dividends and DistributionsVoting Rights

The sharesDGCL provides that each stockholder must be entitled to one vote for each share of capital stock held by such stockholder, unless otherwise provided in a corporation’s certificate of incorporation. Each share of Pioneer common stock constitute equity interests in Pioneer. Each stockholder will be entitled to his pro rataand each share of any dividends (payable in cash,Parsley Class A common stock or otherwise) made with respectand Parsley Class B common stock entitles its holder to shares of Pioneer common stock. The dividends payable to Pioneer stockholders are not fixed in amount and are only paid if, as and when declared by the Pioneer Board in its sole discretion out of any funds of the corporation legally available. Under the Delaware General Corporation Law, dividends may be declared by the board of directors and paid out of surplus, and, if no surplus is available, out of any net profitsone vote for the then current fiscal year or the preceding fiscal year, or both, provided that such payment would not reduce capital below the amount of capital represented by all classes of outstanding stock having a preference as to the distribution of assets.

Pioneer Southwest’s partnership agreement requires that, within 45 days following the end of each quarter, Pioneer Southwest distribute all of Pioneer Southwest’s available cash with respect to such quarter to unitholdersshare held of record on the applicable record date.

each matter submitted to a vote of stockholders. The term “available cash,” with respect to any quarter, meansParsley stockholders vote together as a single class on all cash and cash equivalents on the date of determination of available cash with respect to such quarter, less the amount of cash reserves established by Pioneer Southwest GP to:matters.

•    provide for the proper conduct of Pioneer Southwest’s business;

•    comply with applicable law, any of Pioneer Southwest’s debt instruments or other agreements; or

•    provide funds for distributions to Pioneer Southwest’s unitholders and to Pioneer Southwest GP for any one or more of the next four quarters.

Prior to the termination of the merger agreement or the effective time of the merger, it is expected that Pioneer Southwest unitholders will continue to receive quarterly distributions on their Pioneer Southwest common units consistent with past

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practice and not in excess of $0.52 per Pioneer Southwest common unit per quarter (which $0.52 per common unit is equivalent to the most recent distribution declared for the quarter ended June 30, 2013), provided that the record date for such quarterly distribution occurs prior to the effective time of the merger. If the merger agreement terminates, it is expected that distributions would continue, consistent with past practice and in accordance with the terms of Pioneer Southwest’s partnership agreement.
Merger, Sale or Other Disposition of Assets

Under the Delaware General Corporation Law, mergers (exclusive of certain mergers between a parent and a 90%-owned subsidiary and certain mergers effected following a tender offer, each as described below), consolidations or sales of all or substantially all of the assets or dissolution of a corporation generally must be approved by the holders of at least a majority of the voting power of all outstanding shares of stock entitled to vote thereon, unless the certificate of incorporation requires approval by a greater number of shares of stock. However, unless the certificate of incorporation requires otherwise, no vote will be required in connection with a merger where either:

•   the corporation’s certificate of incorporation is not amended, the shares of stock of the corporation remain outstanding and the common stock of the corporation issued in the merger (if any) does not exceed 20% of the previously outstanding common stock; or

•   the merger is with a wholly-owned subsidiary of the corporation for the purpose of forming a holding company and, among other things, the certificate of incorporation and bylaws of the holding company immediately following the merger will be identicalSubject to the certificatediscussions in “—Election of incorporationDirectors and bylaws“—Amendment of the corporation priorGoverning Documents” below, with respect to the merger.

Pioneer’s certificate of incorporation provides that certain business combinations (including mergers, share exchanges and sales of all or substantially all of the assets of Pioneer) involvingany matter, other than a person or group that beneficially owns at least 10% of the aggregate voting power of the outstanding shares of Pioneer’s capital stock entitled to vote generally in the election of directors (a “Pioneer Related Person”) requirematter for which the affirmative vote of (i) the holders of at least 80%a specified portion of the

A merger, consolidation shares entitled to vote is required by law or conversionPioneer’s governing documents, including with respect to the rights of any preferred stock of Pioneer, Southwest requires the prior consent of Pioneer Southwest GP. However, Pioneer Southwest GP will have no duty or obligation to consent to any merger, consolidation or conversion and may decline to do so in its sole discretion free of any fiduciary duty or obligation whatsoever to Pioneer Southwest or the limited partners, including any duty to act in good faith or in the best interests of Pioneer Southwest or the Pioneer Southwest unitholders.

In addition, Pioneer Southwest’s partnership agreement generally prohibits Pioneer Southwest GP, without the prior approvalaffirmative vote of the holders of a majority of Pioneer Southwest common units, from causing Pioneer Southwestthe shares present in person or represented by proxy at a meeting at which a quorum is present and entitled to among other things, sell, exchange or otherwise disposevote on the matter will be the act of all or substantially allthe stockholders at the stockholders’ meeting.

The voting rights of the holders of any preferred stock of Pioneer Southwest’s assetsdesignated by the Pioneer board will be determined by the Pioneer board.

Subject to the discussion in “—Election of Directors” below, with respect to any matter, other than a single transaction or a series of related transactions (including by way of merger, consolidation, other combination or sale of ownership interests of Pioneer Southwest’s subsidiaries). Pioneer Southwest GP may, however, mortgage, pledge, hypothecate or grant a security interest in all or substantially all of Pioneer Southwest’s assets without such approval. Pioneer Southwest GP may also sell all or substantially all of Pioneer Southwest’s assets under a foreclosure or other realization upon those encumbrances without such approval. Upon its approval of any merger agreement or plan of conversion, Pioneer Southwest GP must submit such merger agreement or plan of conversion to amatter for which the affirmative vote of the Pioneer Southwest unitholders, etherholders of a specified portion of the shares entitled to vote is provided by law, Parsley’s governing documents or the rules and regulations of the exchange or quotation system on which Parsley’s equity securities are listed or with respect to the rights of any preferred stock of Parsley, the affirmative vote of a majority of the shares present in person or represented by proxy at a special meeting at which a quorum is present and entitled to vote on the matter will be the act of the stockholders at the stockholders’ meeting. Parsley’s bylaws provide that, in non-binding advisory matters with more than two possible vote choices, the affirmative vote of a plurality of the shares present in person or represented by written consent.proxy at the meeting and entitled to vote on the matter will be the recommendation of the stockholders at the stockholders’ meeting.

 

Finally, Pioneer Southwest GP may consummate any merger without the prior approvalThe voting rights of the Pioneer Southwest unitholders if Pioneer Southwest isholders of any preferred stock of Parsley designated by the Parsley board will be determined by the Parsley board.

Number of Directors and Size of Board

PIONEERThe DGCL provides that the board of directors of a Delaware corporation must consist of one or more directors as fixed by the company’s certificate of incorporation or bylaws.

The Pioneer board currently has 11 members, which will be increased by two members in connection with the consummation of the mergers. Pioneer’s bylaws and certificate of incorporation provide that the number of directors shall not be fewer than three or more than 21. Within the limits specified above, the number of directors may be increased or decreased from time to time by resolution of the Pioneer board, but the number of directors may not be decreased if it would have the effect of shortening the term of an incumbent director.

  

PIONEER SOUTHWESTThe Parsley board currently has 11 members. Parsley’s bylaws provide that the number of directors shall be determined by resolution of the board of directors subject to the rights of the holders of any series of preferred stock to elect directors under specified circumstances, but the number of directors may not be decreased if it would have the effect of shortening the term of an incumbent director.

Classified Board/Term of Directors

The DGCL provides that directors of a Delaware corporation may, by the company’s certificate of incorporation or by the company’s bylaws, be divided into one, two or three classes.

Pioneer’s certificate of incorporation provides that all directors are to be elected annually. Each director holds office until the next annual meeting and until his or her successor has been duly elected and qualified, or otherwise until his or her earlier death, disability, resignation, disqualification or removal.

Parsley’s certificate of incorporation divides the Parsley board into three classes, as nearly equal in number as possible, serving staggered three-year terms. Each director holds office until the third annual meeting following his or her election and until his or her successors have been duly elected and qualified, or otherwise until his or her earlier death, disability, resignation, disqualification or removal. Parsley’s certificate of incorporation also provides that the classified board provision may not be amended without the affirmative vote of the holders of 662/3% or more of the voting power of Parsley’s capital stock.

Election of Directors

Pioneer’s bylaws provide that in an election of directors at a meeting of stockholders at which a quorum is present, (i) if, as of the outstanding capital stock10th day preceding the date Pioneer first distributes proxy materials for such meeting, the number of Pioneernominees exceeds the number of directors to be elected (a “contested election”), then the directors will be elected by a plurality of the votes cast by holders of shares entitled to vote generally in the election of directors as well asat such meeting and (ii) the holders of two-thirds of the voting power of the outstanding shares of capital stock of Pioneer entitled to vote generally in thean election of directors beneficially owned by stockholders other than such Pioneer Related Person, unless certain minimum price or board approval requirements are met.

See “Special Charter and Bylaw Provisions” in Pioneer’s Description of Capital Stock set forth in Pioneer’s Current Report on Form 8-K filed with the SEC on September 16, 2013 and incorporated by reference herein, for further discussion.

surviving entity in the transaction, Pioneer Southwest GP has received an opinion of counsel regarding limited liability and tax matters, the transaction wouldthat is not result in a material amendment to the Pioneer Southwest partnership agreement, each of Pioneer Southwest’s unitscontested election (an “uncontested election”), directors will be an identical unit of Pioneer Southwest’s partnership following the transaction, and the partnership securities to be issued do not exceed 20% of Pioneer Southwest’s outstanding partnership securities immediately prior to the transaction.

If the conditions specified in Pioneer Southwest’s partnership agreement are satisfied, Pioneer Southwest GP may convert Pioneer Southwest or any of Pioneer Southwest’s subsidiaries into a new limited liability entity or merge Pioneer Southwest or any of Pioneer Southwest’s subsidiaries into, or convey some or all of Pioneer Southwest’s assets to, a newly formed entity if the sole purpose of that conversion, merger or conveyance is to effect a mere change in Pioneer Southwest’s legal form into another limited liability entity, Pioneer Southwest GP has received an opinion of counsel regarding limited liability and tax matters, and the governing instruments of the new entity provide the limited partners and the general partner with the same rights and obligations as contained in the Pioneer Southwest partnership agreement. Pioneer Southwest unitholders are not entitled to appraisal rights under the Pioneer Southwest partnership agreement or Delaware or other applicable law in the event of a conversion, merger or consolidation, a sale of substantially all of Pioneer Southwest’s assets or any other similar transaction or event.

Management
The business and affairs of Pioneer are managed by or under the direction of a board of directors elected by its stockholders. Pioneer’s bylaws provide that, generally, Pioneer’s directors shall be elected by a majority of the votes cast by the holders of shares entitled to vote in the election of Pioneer’s capital stockdirectors at such meeting. For purposes of the election of directors, (i) a

Parsley’s bylaws provide that in an election of directors at a meeting of stockholders at which a quorum is present, (i) if the number of nominees exceeds the number of directors to be elected (a “contested election”), the members of the Parsley board that are elected by stockholders will be elected by a plurality of the votes cast and (ii) in an election of directors that is not a contested election (an “uncontested election”), the members of the Parsley board that are elected by stockholders will be elected by a majority of the votes cast by the holders of shares entitled to vote in the election of directors. Pioneer’s certificate of incorporation provides that the sizeFor purposes of the boardelection of directors, shall be fixed exclusively by the boardin an uncontested election of directors by a resolution adopted by a majority“majority of the members of the board of directors serving at the time of that vote, but that in no event shall the size of the whole board be fewer than three or more than twenty-one directors.

Pioneer Southwest GP is the general partner of Pioneer Southwest and manages Pioneer Southwest’s operations and activities on Pioneer Southwest’s behalf. Pioneer Southwest GP is indirectly wholly-owned by Pioneer. All of the executive officers of Pioneer Southwest GP are executive officers of Pioneer. Members of the Pioneer Southwest GP Board are chosen by Pioneer and not by the Pioneer Southwest unaffiliated unitholders.

Without the approval of a majority of Pioneer Southwest common units, Pioneer Southwest GP may not elect or cause Pioneer Southwest to elect a successor general partner of Pioneer Southwest.votes

PIONEERmajority of the votes cast means that the number of votes cast “for” a director must exceed the number of votes cast “against” that director, and (ii) abstentions and broker nonvotes shall not be counted as votes cast either “for” or “against” any nominee for director. In an uncontested election, stockholders will be given the choice to cast votes “for” or “against” the election of directors. In a contested election, stockholders will be given the choice to cast “for” or “withhold” votes for the election of directors.

Elections of directors need not be by written ballot and there is no cumulative voting for the election of directors.

  

PIONEER SOUTHWESTcast” will mean that the number of shares voted “FOR” a director exceeds the number of votes cast “against” that director.

Elections of directors need not be by written ballot unless the chairman so directs or unless the election is a contested election and there is no cumulative voting for the election of directors.

See “Comparison of the Rights of Pioneer Stockholders and Pioneer Southwest Unitholders — Classification of the Board of Directors; Election and Removal of Directors” for a discussion of the phase out of Pioneer’s classified board of directors.
Management Duties and LiabilityRemoval of Directors

Under Delaware law,Pioneer’s bylaws, any director or the directors owe fiduciary duties to Pioneer and its stockholders. As a general matter, this means that Pioneer’s directors are required to perform their duties (i) in good faith, (ii) in a manner believed to be in the best interestsentire board of Pioneer and its stockholders, and (iii) with such care as an ordinarily prudent person in a like position would use under similar circumstances.

Pioneer’s certificate of incorporation provides, as authorized by Section 102(b)(7) of the Delaware General Corporation Law, that a director of Pioneer will not be personally liable to Pioneer or its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability:

•   for any breach of the director’s duty of loyalty to Pioneer or its stockholders;

•   for acts or omission not in good faith or that involve intentional misconduct or a knowing violation of law;

•   for unlawful payments of dividends or unlawful stock repurchases or redemptions as provided in Section 174 of the Delaware General Corporation Law; or

•   for any transaction from which the director derived an improper personal benefit.

Such provisions do not foreclose any other remedy which might be available to Pioneer or its stockholders.

The fiduciary duties that Pioneer Southwest GP owes to the Pioneer Southwest unitholders and to Pioneer Southwest are prescribed by law and the Pioneer Southwest partnership agreement. The Delaware LP Act provides that Delaware limited partnerships may, in their partnership agreements, expand, restrict or eliminate the fiduciary duties otherwise owed by a general partner.

The Pioneer Southwest partnership agreement contains various provisions modifying and restricting the fiduciary duties that Pioneer Southwest GP might otherwise owe to the Pioneer Southwest unitholders and to Pioneer Southwest. Pioneer Southwest has adopted these restrictions to allow Pioneer Southwest GP to take into account the interests of other parties in addition to the interests of the Pioneer Southwest unitholders and Pioneer Southwest when resolving conflicts of interest. These modifications are detrimental to the Pioneer Southwest unitholders because they restrict the remedies available to unitholders for actions that, without those limitations, might constitute breaches of fiduciary duty, as described below. The following is a summary of the material restrictions of the fiduciary duties owed by Pioneer Southwest GP to the Pioneer Southwest unitholders and to Pioneer Southwest.

The Pioneer Southwest partnership agreement contains provisions that waive or give consent to conduct by Pioneer Southwest GP and its affiliates that might otherwise raise issues as to compliance with fiduciary duties or applicable law. For example, the Pioneer Southwest partnership agreement provides that when Pioneer Southwest GP is acting in its capacity as Pioneer Southwest’s general partner and not in its sole discretion, it must act in good faith and will not be subject to any other standard under applicable law. Under the Pioneer Southwest partnership agreement, “good faith” means that the person or persons making such determination or taking or declining to take such other action subjectively believe that the determination or other action is in the best interests of Pioneer Southwest; provided, however, that in making a determination in

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connection with a conflict of interest transaction (other than with respect to a determination by or under the direction of the Pioneer Southwest Conflicts Committee), “good faith” means that a person making any determination or taking or declining to take any action subjectively believes that the decision or action made or taken (or not made or taken) is fair and reasonable to Pioneer Southwest taking into account the totality of the relationships between the parties involved (including other transactions thatdirectors may be particularly favorableremoved, with or advantageous to Pioneer Southwest), or is on terms no less favorable to Pioneer Southwest than those generally being provided to or available from unrelated third parties. Any decision made or action taken by Pioneer Southwest GP in good faith, including those involving a conflict of interest, will be conclusive and binding on all Pioneer Southwest unitholders and will not be a breach of the Pioneer Southwest partnership agreement or of any duty Pioneer Southwest GP may owe to the Pioneer Southwest unitholders or to Pioneer Southwest. In addition, when Pioneer Southwest GP is permittedwithout cause, by the Pioneer Southwest partnership agreement to make a decision in its sole discretion, it may act without any fiduciary obligation to Pioneer Southwest whatsoever. These standards reduce the obligations to which Pioneer Southwest GP would otherwise be held.

In addition to the other more specific provisions limiting the obligations of Pioneer Southwest GP, the Pioneer Southwest partnership agreement further provides that Pioneer Southwest GP and its officers and directors will not be liable for monetary damages to Pioneer Southwest, the Pioneer Southwest unitholders or their assignees for errors of judgment or for any acts or omissions unless there has been a final and non-appealable judgment by a court of competent jurisdiction determining that Pioneer Southwest GP or its officers and directors acted in bad faith or engaged in fraud or willful misconduct, or in the case of a criminal matter, acted with the knowledge that such conduct was criminal.

Conflicts of Interest and Special Approval

Under the Pioneer Southwest partnership agreement, whenever a potential conflict of interest exists or arises between Pioneer Southwest GP or any of its affiliates, on the one hand, and Pioneer Southwest or any Pioneer Southwest unitholder on the other hand, any resolution or course of action by Pioneer Southwest GP or its affiliates in respect of such conflict of interest will be permitted and deemed

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approved by all Pioneer Southwest unitholders, and will not constitute a breach of the Pioneer Southwest partnership agreement, if the resolution or course of action in respect of such conflict of interest is or, by operation of the Pioneer Southwest partnership agreement, is deemed to be, “fair and reasonable” to the Partnership.

Furthermore, any conflict of interest and any resolution of such conflict of interest will be deemed to be “fair and reasonable” to Pioneer Southwest under the Pioneer Southwest partnership agreement if such conflict of interest or resolution is: (i) approved by “Special Approval,” (ii) approved by the voteholders of a majority of the Pioneer Southwest common units held by Pioneer Southwest unaffiliated unitholders, (iii) on terms no less favorableshares then entitled to Pioneer Southwest than those generally being provided to or available from unrelated third parties, or (iv) fair and reasonable to Pioneer Southwest, taking into account the totalityvote at an election of the relationships between the parties involved.

“Special Approval” under the Pioneer Southwest partnership agreement means approval by a majority of the members of the Pioneer Southwest Conflicts Committee acting in good faith.

In making any decision relating to a resolution or course of action relating to a conflict of interest, it shall be presumed that the Pioneer Southwest GP Board, which may include board members affected by the conflict of interest, acted in good faith, and in any proceeding brought by or on behalf of any limited partner or Pioneer Southwest, the person bringing or prosecuting such proceeding will have the burden of overcoming that presumption. These standards reduce the obligations to which Pioneer Southwest GP would otherwise be held.

Indemnification
Delaware law provides that a corporation may indemnify its present and former directors, officers, employees and agents, as well as any individual serving with another entity in that capacity at the corporation’s request, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement of actions, if the individual acted in good faith and in a manner reasonably believed to be in, or not opposed to, the best interests of the corporation and, in the case of a criminal proceeding, the individual had no reasonable cause to believe the individual’s conduct was unlawful;Under Pioneer Southwest’s partnership agreement, in most circumstances, Pioneer Southwest will indemnify the following persons, to the fullest extent permitted by law, from and against any and all losses, claims, damages, liabilities, joint or several, expenses (including legal fees and expenses), judgments, fines, penalties, interest, settlements or other amounts arising from any and all claims, demands, actions, suits or proceedings, whether civil, criminal, administrative or investigative and whether formal or informal and including appeals, in which any such

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except that no indemnification may be paid for judgments and settlements in actions by or in the right of the corporation.

A corporation may not indemnify a current or former director or officer of the corporation against expenses to the extent the person is adjudged to be liable to the corporation unless a court approves the indemnity.

A corporation must indemnify directors and officers to the extent they are successful on the merits or otherwise in defense of the action or matter at issue. In addition, Delaware law allows for the advance payment of expenses prior to final disposition of an action, so long as, in the case of a current director or officer, the person undertakes to repay any amount advanced if it is later determined that the person is not entitled to indemnification.

Pioneer’sUnder Parsley’s certificate of incorporation, requires Pioneer to indemnify, and advance defense-related expenses for, to the fullest extent permitted by Delaware law, any person who was, is, or is threatened to be made a party to any action, suit or proceeding by reason of the fact that he or she (i) is or was a director or officer of Pioneer or (ii) while a director or officer of Pioneer, is or was serving at the request of Pioneer as a director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another entity. If Pioneer does not pay in full any claim for indemnification or advancement of expenses in accordance with the terms of Pioneer’s certificate of incorporation,DGCL, subject to the person seeking indemnification or advancement may bring a suit against Pioneer to recover the unpaid amount of his or her claim and, if such person is successful in whole or in part in such suit, that person shall also be entitled to be paid the expenses of prosecuting such a lawsuit.

Pioneer may also grant indemnification rights including to its current and former directors and officers, that are greater than or different from those provided by the certificate of incorporation. Accordingly, Pioneer has entered into indemnification agreements with each of its directors and certain of its officers. These agreements, among other things, require Pioneer to indemnify the directors and officers of Pioneer that are party to such agreements for certain expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement that are actually and reasonably incurred in a legal proceeding by reason of the fact thatholders of any series of preferred stock then outstanding, any director, or the person is or was a director, officer, employee or agent of Pioneer or is or was serving at the request of Pioneer as a director,

indemnified personentire Parsley board, may be involved, or is threatened to be involved, as a party or otherwise, by reason of its status as an indemnified person:removed from office at any general partner, any departing general partner, any person who is or was an affiliate of a general partner or any departing general partner, any person who is or was a member, manager, partner, director, officer, fiduciary or trustee of any of the preceding entities or Pioneer Southwest or its subsidiaries, any person who is or was serving as an officer, director, member, manager, partner, fiduciary or trustee of another person at the request of the general partner or any departing general partner, and any person designated by the general partner.

Any indemnification under these provisions willtime only be out of Pioneer Southwest’s assets. Unless it otherwise agrees, Pioneer Southwest GP will not be personally liable for, or have any obligation to contribute or lend funds or assets to Pioneer Southwest to enable Pioneer Southwest to effectuate, indemnification. Pioneer Southwest may purchase insurance against liabilities asserted against and expenses incurred by persons for Pioneer Southwest’s activities, regardless of whether Pioneer Southwest would have the power to indemnify such person against liabilities under Pioneer Southwest’s partnership agreement.

Pioneer Southwest has also entered into agreements with the independent directors of Pioneer Southwest GP providing for indemnification in addition to the indemnification provided for in Pioneer Southwest’s partnership agreement. These agreements, among other things, provide for the indemnification of the independent directors of Pioneer Southwest GP to the fullest extent permitted by Pioneer Southwest’s partnership agreement and Delaware law for certain expenses (including attorneys’ fees), judgments, penalties, fines and amounts paid in settlement that are actually and reasonably incurred in a legal proceeding by reason of the fact that the person is or was a director of Pioneer Southwest GP or is or was serving at Pioneer Southwest GP’s request as a director, officer, employee or agent of another corporation or other entity if such person meets the standard of conduct provided in Pioneer Southwest’s partnership agreement.

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officer, employee or agent of another entity if such person meets the standard of conduct provided under Delaware law.

Finally, Pioneer may also indemnify any employee or agent of Pioneer to the fullest extent permitted under Delaware law.

Classification of the Board of Directors; Election and Removal of Directors

The Pioneer Board is currently divided into three classes, and will be so-divided until the election of directors at the annual meeting of stockholders in 2015. At and after the annual meeting of stockholders in 2013, directors who are subject to stockholder election will be elected for terms expiring at the next annual meeting of stockholders held after their election. From and after the election of directors at the annual meeting of stockholders in 2015, the Pioneer Board will no longer be classified and each director will be elected for a term of one year at each annual meeting of the Pioneer stockholders beginning with the election of directors at the annual meeting of stockholders in 2015.

The Pioneer certificate of incorporation provides that, until the election of directors at the annual meeting of stockholders in 2015, no director shall be removed prior to the expiration of such director’s term except for cause and only by anthe affirmative vote of the holders of not less than two-thirds662/3% or more of the voting power of the outstanding shares of the class or classes or series or series of stock then entitled to be voted at an election of directors of that class or series of stock, voting together as a single class, cast at the annual meeting of stockholders or at a special meeting of stockholders called for such purpose. In addition, until the election of directors at the annual meeting of stockholders in 2015, the affirmative vote of the holders of not less than two-thirds of the voting power of the outstanding shares of the class or classes or series or series ofParsley common stock entitled to vote generally in anthe election of directors, voting together as a single class, will be required to amend or repeal the provisions ofdirectors.

Vacancies

The DGCL provides that, unless otherwise provided in the certificate of incorporation that address the number, classification, or terms of orbylaws, vacancies on the board of directors. The Pioneer certificate of incorporation provides that any vacancy in the Pioneer Board and newly created directorships may be filled by a majority vote of the directors then in office, even if the number of directors then in office is less than a quorum.

Under Pioneer’s bylaws, any vacancy on the Pioneer Boardboard that results from death, resignation, retirement, disqualification, removal from office or other cause and newly-created directorships resulting from any increase in the number of directors shall be filled by thea majority vote of the remaining members of the Pioneer Board, althoughdirectors then in office, though less than a quorum, or by the sole remaining director. Untildirector (but not by the election of directors at the annual meeting ofcommon stockholders in 2015, eachexcept as required by law). Any director elected to fill a vacancy will receive the

Pioneer Southwest GP is not elected as general partner by Pioneer Southwest unitholders and will not be subject to re-election on a regular basis in the future. Pioneer Southwest unitholders are not entitled to elect the directors of Pioneer Southwest GP or directly or indirectly participate in Pioneer Southwest’s management or operation. As the indirect owner of Pioneer Southwest GP, Pioneer has the ability to elect and remove all the members of the Pioneer Southwest GP Board.

Pioneer Southwest GP may be removed as the general partner if such removal is approved by a vote of at least 66 23% of the outstanding units voting as a single class, including units held by Pioneer Southwest GP and its affiliates, and Pioneer Southwest receives an opinion of counsel regarding limited liability and tax matters. Action for removal must also provide for the election of a successor general partner by a vote of a majority of the outstanding units.

In addition, if Pioneer Southwest GP is removed as the general partner under circumstances where “cause” does not exist and units held by the general partner and its affiliates are not voted in favor of such removal, Pioneer Southwest GP will have the right to receive cash in exchange for converting its general partner interest. “Cause” is defined to mean that a court of competent jurisdiction has entered a final, non-appealable judgment finding Pioneer Southwest GP liable for actual fraud or willful misconduct in its capacity as the general partner of Pioneer Southwest. If Pioneer Southwest GP is removed by the limited partners under circumstances where cause exists, its successor will have the option to purchase the general partner interest.

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classification and term of his predecessor, or if it is a newly created directorship, the classification that a majority of the Pioneer Board designates. The new director will hold office until the nextfirst meeting of stockholders held to electafter his or her appointment for the purpose of electing directors of that classification and until his or her successor is elected and qualified or until his or her earlier death, resignation or removal from office.

  

Under Parsley’s certificate of incorporation, and in accordance with the DGCL, subject to the rights of holders of any series of any preferred stock then outstanding, newly-created directorships resulting from any increase in the authorized number of directors and any vacancies in the Parsley board resulting from death, resignation, retirement, disqualification, removal from office, or other cause shall be filled solely by the affirmative vote of a majority of the total number of directors then in office, even if less than a quorum, or by a sole remaining director (and shall not be filled by the stockholders), and the directors so chosen shall hold office for the remaining term of his or her predecessor.

Limited Liability
A Pioneer stockholder’s liability will generally be limited to such stockholder’s contribution to Pioneer’s capital. Under Delaware law, Pioneer’s stockholders will not be liableQuorum for Pioneer’s debts or obligations except as they may be liable by reason of their own conduct or acts. The shares of Pioneer common stock offered by Pioneer under this proxy statement/prospectus, upon issuance, will be fully paid and nonassessable.Since the Pioneer Southwest unitholders do not take part in the management or control of the business of Pioneer Southwest, a Pioneer Southwest unitholder’s liability is generally limited to such unitholder’s contribution to the capital of Pioneer Southwest and such unitholder’s share of assets and undistributed profits of Pioneer Southwest. A Pioneer Southwest unitholder will receive a return of such unitholder’s capital contribution to Pioneer Southwest to the extent that a distribution to the unitholder reduces the unitholder’s share of the fair value of Pioneer Southwest’s net assets below the value of the unitholder’s unreturned capital contributions. A substituted limited partner is subject to the liabilities and obligations of the substituted limited partner’s assignor.Board Meetings
Merger of Parent Entity and Subsidiaries; Limited Call Rights

The Delaware General Corporation LawDGCL provides that in anyno case in which at least 90%will a quorum be less than one-third of the voting power of each class of the outstanding capital stock of a corporation that is entitled to vote on a merger is owned by another corporation or a limited liability company, the parent can merge with the subsidiary corporation if the board of directors of the parent corporation adopts a resolution to so merge (or, in the case of a limited liability company, the merger is approved in accordance with the governing documents of the parent entity). No other stockholder approval of the merger is required. In addition, no approval of the merger by the board of directors of the 90% owned subsidiary corporation is required. Furthermore, a recent amendment to the Delaware General Corporation Law permits inclusion of a provision in an agreement and plan of merger eliminating the need for stockholder approval of a merger that follows a tender offer, so long as the buyer acquires in the tender offer at least thatauthorized number of shares of capital stock of the corporation that, absent this new statutory provision, would be required by the Delaware General Corporation Law or the corporation’s certificate of incorporation to adopt the plan and agreement of

If at any time Pioneer Southwest GP and its affiliates own more than 80% of the then-issued and outstanding limited partner interests of any class, Pioneer Southwest GP will have the right, which it may assign in whole or in part to any of its affiliates or to Pioneer Southwest, to acquire all, but not less than all, of the limited partner interests of the class held by unaffiliated persons as of a record date to be selected by Pioneer Southwest GP, on at least 10 but not more than 60 days’ notice. The purchase price in the event of this purchase is the greater of:

•   the highest price paid by either Pioneer Southwest GP or any of its affiliates for any limited partner interests of the class purchased within the 90 days preceding the date on which Pioneer Southwest GP first mails notice of its election to purchase those limited partner interests; or

•   the current market price as of the date three days before the date the notice is mailed.

As a result of Pioneer Southwest GP’s right to purchase outstanding limited partner interests, a holder of limited partner interests may have his limited partner interests purchased at a price that maydirectors.

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merger (i.e., shares as to which more than 50%Each of Pioneer’s and Parsley’s bylaws provide that the presence of at least a majority of the voting powertotal number of authorized directors constitute a quorum for the transaction of business and the act of a majority of the outstanding capital stockdirectors present at any meeting at which there is a quorum shall be the act of the corporation is attributable, unless the corporation’s certificate of incorporation requires a higher vote).board (except as may be lower than market prices at various times prior to such purchaseotherwise specifically provided by statute or lower than a unitholder may anticipate the market price to be in the future. The federal income tax consequences to a unitholder of the exercise of this call right are the same as a sale by that unitholder of common units in the market.each corporation’s charter).

Preemptive RightsAnnual Meetings of Stockholders

Pioneer

Under the DGCL, if a corporation does not hold an annual meeting to elect directors within the thirteen-month period following its last annual meeting, the Delaware Court of Chancery may summarily order a meeting to be held upon the application of any stockholder or director.

Each of Pioneer’s and Parsley’s bylaws provide that annual meetings of stockholders do not have preemptiveshall be held at such dates and times as shall be designated by the corporation’s board and stated in the notice of the meeting, at which time the stockholders shall elect a board of directors and transact such other business as may be properly brought before the meeting. The board of directors may postpone, reschedule, or preferential rights to acquire or subscribe to additional sharescancel any previously scheduled annual meeting of Pioneer common stock or other securities.

Pioneer Southwest GP has the right, which it may from time to time assign in whole or in part to any of its affiliates, to purchase Pioneer Southwest common units or other equity securities whenever, and on the same terms that, Pioneer Southwest issues such securities to persons other than Pioneer Southwest GP and its affiliates, to the extent necessary to maintain its percentage interests in Pioneer Southwest that existed immediately prior to the issuance. The holders of Pioneer Southwest common units have no preemptive or preferential rights to acquire additional Pioneer Southwest common units or other partnership interests in Pioneer Southwest.stockholders.

AmendmentQuorum for Stockholder Meetings

Under the DGCL and each of Organizational DocumentsPioneer’s and Parsley’s bylaws the holders of a majority of the stock issued and outstanding and entitled to vote, present in person or represented by proxy, shall constitute a quorum at all meetings of the stockholders for the transaction of business, except that, under Parsley’s bylaws, when specified business is to be voted on by a class or series of stock voting as a class, the holders of a majority of the shares of such class or series shall constitute a quorum of such class or series for the transaction of such business.

Notice of Annual and Special Meetings of Stockholders

Under the DGCL and each of Pioneer’s and Parsley’s bylaws notice of any meeting of stockholders must be sent not less than 10 nor more than 60 days before the date of the meeting to each stockholder entitled to vote at the meeting.

Calling Special Meetings of Stockholders

The DGCL provides that special meetings may be called by the board of directors or by such person as may be authorized by the certificate of incorporation or by the bylaws.

Section 242Special meetings of stockholders may only be called by the Pioneer board by a resolution approved by a majority of the Delaware General Corporation Lawdirectors of Pioneer at the time in office. The stockholders do not have the power to require the Pioneer board to call a special meeting of stockholders of Pioneer.

Parsley’s certificate of incorporation provides that in ordera special meeting of stockholders may be called by the Chief Executive Officer, the Chairman of the Parsley board or by a resolution adopted by a majority of the directors of Parsley that Parsley would have if there were no vacancies on the Parsley board. The stockholders do not have the power to amendcall a special meeting of stockholders of Parsley.

Stockholders Action by Written Consent

The DGCL provides that, unless otherwise provided in a corporation’s certificate of incorporation (i)or bylaws, any action required or permitted to be taken at any annual or special meeting of stockholders may be taken without a meeting, without prior notice and without a vote, if a consent or consents in writing, setting forth the corporation’saction so taken, are signed by the holders of issued and outstanding stock having not less than the minimum number of votes that would be necessary to authorize or take such action at a meeting at which all shares entitled to vote thereon were present and voted.

Pioneer’s certificate of incorporation provides that stockholders may not act by written consent in lieu of a meeting.

Parsley’s certificate of incorporation and bylaws provide that, subject to the rights of the holders of any series of preferred stock then issued and outstanding, any action required or permitted to be taken by the stockholders of Parsley must be effected at a duly-called annual or special meeting of stockholders of Parsley and may not be effected by any consent in writing by such stockholders.

Amendment of Governing Documents

Under the DGCL, the power to make, alter or repeal bylaws is conferred upon the stockholders. A corporation may, however, in its certificate of incorporation also confer upon the board of directors mustthe power to make, alter or repeal its bylaws.

Pioneer’s certificate of incorporation grants the Pioneer board the power to adopt, amend, and repeal Pioneer’s bylaws by a resolution setting forthvote of a majority of the amendment proposed and declaring its advisability and (ii) the amendment must be approved bywhole board. Pioneer’s stockholders may also adopt, alter, amend or repeal Pioneer’s bylaws upon the affirmative vote of the holders of at least a majority of the voting power662/3% of the outstanding capitalshares of stock then entitled to vote thereon. The Pioneer certificatein the election of incorporation provides that amendmentsdirectors.

Amendments to certain provisions of Pioneer’s certificate of incorporation regarding, among other matters, (i) election, removal and replacement of directors, (ii) amendment of the Pioneer bylaws, (iii) appointment or removal of officers and members of committees of the Pioneer Board, (iv) matters relating to special meetings of stockholders, and (v) notice requirements related to the nomination(i) stockholder action by stockholders of candidates for election as directors and stockholder proposals to transact other business,written consent or “fair price” limitations in addition to any affirmative vote by stockholders of any particular class or series of Pioneer’s capital stock required by law, must be approved by the affirmative vote of the holders of at least two-thirds of the voting power of the outstanding shares of capital stock entitled to vote in an election of directors. In addition to any other votes required by law, Pioneer’s certificate of incorporation requires that

Amendments to Pioneer Southwest’s partnership agreement may be proposed only by or with the consent of Pioneer Southwest GP. However, Pioneer Southwest GP will have no duty or obligation to propose any amendment and may decline to do so free of any fiduciary duty or obligation whatsoever to Pioneer Southwest or the Pioneer Southwest unitholders. In order to adopt a proposed amendment, other than the amendments discussed below under “No Unitholder Approval,” Pioneer Southwest GP is required to seek written approval of the holders of the number of units required to approve the amendment or call a meeting of the unitholders to consider and vote upon the proposed amendment. Except as described below, an amendment must be approved by a majority of the outstanding Pioneer Southwest common units (which is referred to, with respect to Pioneer Southwest, as a “unit majority”).

Prohibited Amendments

No amendment may be made that would:

•   have the effect of reducing the voting percentage of outstanding units required to take any action under the provisions of Pioneer Southwest’s partnership agreement, unless such

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amendments to certain provisions relating to certain business combinations must be approved bycombination transactions will require the affirmative vote of the holders of at least 80% of the aggregate voting power, (ii) bylaw amendments, special meetings of stockholders and limitations on liability for Pioneer’s directors require the affirmative vote of the holders of at least 662/3% in voting power of shares entitled to vote in an election of directors

Parsley’s certificate of incorporation grants the Parsley board the power to make, alter or repeal Parsley’s bylaws. Parsley’s stockholders may also make, alter or repeal Parsley’s bylaws by majority vote, except with respect to provisions of Parsley’s bylaws relating to stockholder meetings, directors, and amendment to Parsley’s bylaws, which requires at least 662/3% of the voting power of all then outstanding shares of capital stock entitled to vote generally in the election of directors, voting together as a single class.

 

The PioneerParsley’s certificate of incorporation provides that amendments to the provisions of the certificate of incorporation that provide that Pioneer’s stockholders may not act by written consent in lieu of a meeting require approval of the holders of at least 80% of the voting power of Pioneer’s outstanding capital stock entitled to vote in an election of directors.

The Pioneer certificate of incorporation provides that the Pioneer Board may alter, amendany amendment, alteration or repeal the Pioneer bylaws. The Pioneer bylaws may alsoof any provision thereof must be altered, amended or repealedapproved by the affirmative vote of the holders of not less than two-thirds of theat least 662/3% in voting power of the outstandingthen-outstanding shares of capital stock then entitled to vote upon an election of directors at any annual meeting of the stockholders or at any special meeting of the stockholders if notice of such alteration, amendment, repeal or adoption of new bylaws is contained in the notice of such special meeting.

amendment is approved by the written consent or the affirmative vote of unitholders where the aggregate number of outstanding units is not less than the voting requirement which is intended to be reduced;

•   enlarge the obligations of any limited partner without its consent, unless approved by at least a majority of the type or class of limited partner interests so affected; or

•   enlarge the obligations of, restrict in any way any action by or rights of, or reduce in any way the amounts distributable, reimbursable or otherwise payable by Pioneer Southwest to Pioneer Southwest GP or any of its affiliates without the consent of Pioneer Southwest GP, which consent may be given or withheld at its option.

The provision of Pioneer Southwest’s partnership agreement preventing the amendments having the effects described in any of the clauses above can be amended upon the approval of the holders of at least 90% of the outstanding Pioneer Southwest common units voting together as a single class (including common units owned by Pioneer Southwest GP and its affiliates).

No Unitholder Approval

Pioneer Southwest GP generally may make amendments to Pioneer Southwest’s partnership agreement without the approval of any limited partner or assignee to reflect:

•   a change in the name of Pioneer Southwest, the location of Pioneer Southwest’s principal place of business, Pioneer Southwest’s registered agent or its registered office;

•   the admission, substitution, withdrawal or removal of partners in accordance with Pioneer Southwest’s partnership agreement;

•   a change that Pioneer Southwest GP determines to be necessary or advisable to qualify or to continue Pioneer Southwest’s qualification as a limited partnership or a partnership in which the limited partners have limited liability under the laws of any state or to ensure that Pioneer Southwest and its subsidiaries will not be treated as associations taxable as corporations or otherwise taxed as entities for federal income tax purposes;

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•   an amendment that is necessary, in the opinion of Pioneer Southwest’s counsel, to prevent Pioneer Southwest or Pioneer Southwest GP or its directors, officers, agents or trustees, from in any manner being subjected to the provisions of the Investment Company Act of 1940, the Investment Advisors Act of 1940, or “plan asset” regulations adopted under the Employee Retirement Income Security Act of 1974, whether or not substantially similar to plan asset regulations currently applied or proposed;

•   an amendment that Pioneer Southwest GP determines to be necessary or appropriate for the authorization of additional partnership securities or rights to acquire partnership securities;

•   any amendment expressly permitted in Pioneer Southwest’s partnership agreement to be made by Pioneer Southwest GP acting alone;

•   an amendment effected, necessitated or contemplated by a merger agreement that has been approved under the terms of Pioneer Southwest’s partnership agreement;

•   any amendment that Pioneer Southwest GP determines to be necessary or appropriate to reflect and account for the formation by Pioneer Southwest of, or its investment in, any corporation, partnership, joint venture, limited liability company or other entity, as otherwise permitted by Pioneer Southwest’s partnership agreement;

•   a change in Pioneer Southwest’s fiscal year or taxable year and related changes;

•   certain mergers or conveyances set forth in Pioneer Southwest’s partnership agreement; and

•   any other amendments substantially similar to any of the matters described above.

In addition, Pioneer Southwest GP may make amendments to Pioneer Southwest’s partnership agreement without the approval of any limited partner or assignee if Pioneer Southwest GP determines, at its option, that those amendments:

•   do not adversely affect Pioneer Southwest’s limited partners (or any particular class of limited partners) in any material respect;

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•   are necessary or appropriate to satisfy any requirements, conditions or guidelines contained in any opinion, directive, order, ruling or regulation of any federal or state agency or judicial authority or contained in any federal or state statute;

•   are necessary or appropriate to facilitate the trading of limited partner interests (including the division of any limited partner interests into different classes to facilitate uniformity of tax consequences within such class of limited partner interests) or to comply with any rule, regulation, guideline or requirement of any national securities exchange on which the limited partner interests are or will be listed or admitted for trading;

•   are necessary or advisable for any action taken by Pioneer Southwest relating to splits or combinations of units under the provisions of Pioneer Southwest’s partnership agreement; or

•   are required to effect the intent expressed in Pioneer Southwest’s registration statement on Form S-1 filed with the SEC on July 26, 2007, as amended or supplemented or of the provisions of Pioneer Southwest’s partnership agreement or are otherwise contemplated by Pioneer Southwest’s partnership agreement.

Dissolution and Liquidation

Under the Delaware General Corporation Law, the dissolution of a corporation requires that the board of directors adopt a resolution approving the dissolution and the holders of a majority of the voting power of the outstanding capital stock of the corporation entitled to vote thereon approve the dissolution. The Delaware General Corporation Law provides that a dissolution may be authorized, absent board approval, if all stockholders entitled to vote thereon consent in writing to such dissolution and a certificate of dissolution is filed with the Delaware Secretary of State. However, Pioneer’s certificate of incorporation specifies that stockholders may act only at annual or special meetings of Pioneer stockholders and not by written consent.

The Pioneer certificate of incorporation provides that certain business combinations (including any plan or proposal for the liquidation or dissolution of the corporation) involving a Pioneer Related Person require the affirmative vote of the holders of (i) at least 80% of

Pioneer Southwest will continue as a limited partnership until terminated under Pioneer Southwest’s partnership agreement. Pioneer Southwest will dissolve upon:

•   the election of Pioneer Southwest GP to dissolve Pioneer Southwest, if approved by a unit majority;

•   there being no limited partners, unless Pioneer Southwest is continued without dissolution in accordance with applicable Delaware law;

•   the entry of a decree of judicial dissolution of Pioneer Southwest; or

•   the withdrawal or removal of Pioneer Southwest GP or any other event that results in its ceasing to be general partner other than by reason of a transfer of its general partner interest in accordance with Pioneer Southwest’s

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the voting power of the outstanding capital stock of Pioneer entitled to vote generally in the election of directors as well as (ii) two-thirds of the voting power of the outstanding shares of capital stock entitled to vote generally in the election of directors beneficially owned by stockholders other than the Pioneer Related Person.

In the event of liquidation, dissolution, or winding-up of Pioneer, holders of common stock of Pioneer will be entitled to receive their pro rata share of all remaining assets of Pioneer proportional to the number of shares of Pioneer common stock held, after (i) satisfaction and payment of all obligations of and claims against Pioneer and (ii) satisfaction of all of Pioneer’s obligations upon any such liquidation, dissolution or winding-up to the holders of its preferred stock (including payment of any preferential amounts owed to such holders).

partnership agreement or withdrawal or removal following approval and admission of a successor.

Upon a dissolution under the last clause above, the holders of a majority of Pioneer Southwest common units may also elect, within specific time limitations, to continue Pioneer Southwest’s business on the same terms and conditions described in Pioneer Southwest’s partnership agreement by appointing as a successor general partner an entity approved by the holders of a unit majority of Pioneer Southwest common units, subject to Pioneer Southwest’s receipt of an opinion of counsel relating to certain tax and limited liability matters.

If Pioneer Southwest dissolves in accordance with the Pioneer Southwest partnership agreement, Pioneer Southwest will sell or otherwise dispose of Pioneer Southwest’s assets in liquidation. Pioneer Southwest will first apply the proceeds of liquidation to the payment of Pioneer Southwest’s creditors. Pioneer Southwest will distribute any remaining proceeds to Pioneer Southwest’s unitholders and Pioneer Southwest GP in accordance with their capital account balances, as adjusted to reflect any gain or loss upon the sale or other disposition of Pioneer Southwest’s assets in liquidation.

Meetings; Voting; Voting Rights

Pioneer’s certificate of incorporation provides that (i) Pioneer stockholders may act only at annual or special meetings of Pioneer stockholders and not by written consent, (ii) Pioneer will hold an annual meeting each calendar year at which its stockholders will elect directors and vote on any stockholder proposals that have gone through the requisite notice requirements, (iii) special meetings of Pioneer stockholders may be called only by the Pioneer Board, and (iv) only business proposed by the Pioneer Board may be considered at special meetings of Pioneer stockholders.

The presence, in person or represented by proxy, of the holders of a majority of the voting power of the shares of Pioneer capital stock entitled to vote shall constitute a quorum at any meeting of the Pioneer stockholders.

The rules and regulations of the NYSE and Pioneer’s certificate of incorporation collectively provide that Pioneer stockholders are entitled to vote on various matters, including the following matters:

•   amendments and proposals to repeal provisions in Pioneer’s certificate of incorporation (with certain exceptions, including exceptions for the creation of new preferred stock by Pioneer’s board of directors);

Pioneer Southwest unitholders are entitled to vote on the following matters:

•   certain amendments to the Pioneer Southwest partnership agreement;

•   the merger of Pioneer Southwest or the sale of substantially all of Pioneer Southwest’s assets;

•   the termination or dissolution of Pioneer Southwest;

•   the removal of the general partner of Pioneer Southwest; and

•   under certain circumstances, the transfer of the general partner interest.

Except as described below in “Comparison of the Rights of Pioneer Stockholders and Pioneer Southwest Unitholders — Anti-Takeover Provisions,” regarding a person or group owning 20% or more of any class of units then outstanding, record holders of units on the record date will be entitled to notice of, and to vote at, meetings of Pioneer Southwest unitholders and to act upon

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•   certain business combinations including certain mergers, consolidations, and sales of all or substantially all of the assets of the corporation;

•   certain issuances of securities to a Pioneer Related Person or an affiliate thereof;

•   the liquidation or dissolution of Pioneer;

•   the reclassification of securities or recapitalization of Pioneer, or any business combination (including mergers and share exchanges) which has the net effect of increasing the proportionate share of outstanding stock of any class or series of stock owned by any Pioneer Related Person or affiliate by more than 1%;

•   the election and removal of directors; and

•   the issuance of more than 20% of Pioneer’s common stock or voting power.

If certain events on which the stockholders of Pioneer are entitled to vote, including (without limitation) the events described in the second, third and fourth bullet points above, involve a Pioneer Related Person in certain capacities, that event also requires the approval of the holders of 80% of the voting power of the outstanding shares of Pioneer capital stock entitled to vote generally in the election of directors and the approval of two-thirds of the holders of such shares that are not beneficially owned by a Pioneer Related Person,thereon, voting together as a single class.

matters for which approvals may be solicited. Units that are owned by Non-Eligible Holders (as defined in the Pioneer Southwest partnership agreement) will be voted by Pioneer Southwest GP and Pioneer Southwest GP will distribute the votes on those units in the same ratios as the votes of limited partners on other units are cast.

Pioneer Southwest GP does not hold annual meetings. Any action that is required or permitted to be taken by the unitholders may be taken either at a meeting of the Pioneer Southwest unitholders or without a meeting if consents in writing describing the action so taken are signed by holders of the number of Pioneer Southwest unitholders necessary to authorize or take that action at a meeting. Meetings of the Pioneer Southwest unitholders may be called by Pioneer Southwest GP or by Pioneer Southwest unitholders owning at least 20% of the outstanding units of the class for which a meeting is proposed. Unitholders may vote either in person or by proxy at meetings. The holders of a majority of the outstanding units of the class or classes for which a meeting has been called, represented in person or by proxy, will constitute a quorum unless any action by the unitholders requires approval by holders of a greater percentage of the units, in which case the quorum will be the greater percentage.

Liquidity, Marketability and TransfersLimitation on Liability of Shares of Stock/UnitsDirectors
Shares of Pioneer common stock are generally freely transferable. The shares of Pioneer common stock that are currently outstanding are listed and traded on the NYSE, and the shares of Pioneer common stock to be issued pursuant to the merger will have been approved for listing on the NYSE upon official notice of issuance.

Pioneer Southwest common units are generally freely transferable. The Pioneer Southwest common units that are currently outstanding are listed and traded on the NYSE. In addition to other rights acquired upon transfer, the transferor gives the transferee the right to become a substituted limited partner in Pioneer Southwest for the transferred Pioneer Southwest common units.

Delaware has adopted a law that allows corporations to limit or eliminate the personal liability of directors to corporations and their stockholders for monetary damages for breach of directors’ fiduciary duty of care. An amendment, repeal or elimination of such a provision shall not affect its application with respect to an act or omission by a director occurring before such amendment, repeal or elimination unless the provision provides otherwise at the time of such act or omission. The duty of care requires that, when acting on behalf of the corporation, directors must exercise an informed business judgment based on all material information reasonably available to them. Absent the limitations allowed by the law, directors are accountable to corporations and their stockholders for monetary damages for acts of gross negligence. Although the Delaware law does not change directors’ duty of care, it allows corporations to limit available relief to equitable remedies such as injunction or rescission. Pioneer’s and Parsley’s certificate of incorporation limits the liability of its directors to the fullest extent permitted by this law.

Specifically, each of Pioneer’s and Parsley’s directors is not personally liable for monetary damages for any breach of their fiduciary duty as a director, except for liability:

for any breach of their duty of loyalty to the corporation or its stockholders;

for acts or omissions not in good faith or that involve intentional misconduct or a knowing violation of law;

for unlawful payments of dividends or unlawful stock repurchases or redemptions as provided in Section 174 of the DGCL; or

for any transaction from which the director derived an improper personal benefit.

This limitation may have the effect of reducing the likelihood of derivative litigation against directors, and may discourage or deter stockholders or management from bringing a lawsuit against directors for breach of their duty of care, even though such an action, if successful, might otherwise have benefited the corporation’s stockholders.

To the extent that a present or former director or officer of Pioneer or Parsley has been successful on the merits or otherwise in defense of any threatened, pending, or completed proceeding referred to in Section 145(a) or (b) of the DGCL, or in defense of any claim, issue, or matter therein, he or she shall be indemnified against expenses (including attorneys’ fees) reasonably incurred by him or her in connection therewith.

Each of Pioneer and Parsley may maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the respective corporation or is or was serving at the request of the respective corporation as a director, officer, employee or agent of another entity against any liability asserted against such person and incurred by such person in any capacity, or arising out of such person’s status as such, whether or not the respective corporation would have the power to indemnify such person against such liability.

Any rights to indemnification or advancement of expenses conferred upon any current or former director or officer of Pioneer or Parsley are contractual and shall continue as vested contract rights even if such person ceases to be a director, officer or employee of Pioneer or Parsley. Any amendment, repeal, or modification of, or adoption of any provision inconsistent with the rights conferred under each of Pioneer’s and Parsley’s bylaws shall not adversely affect any right to indemnification or advancement of expenses granted to any person pursuant hereto with respect to any act or omission of such person occurring prior to the time of such amendment, repeal, modification, or adoption (regardless of whether the proceeding relating to such acts or omissions, or any proceeding relating to such person’s rights to indemnification or to advancement of expenses, is commenced before or after the time of such amendment, repeal, modification, or adoption), and any such amendment, repeal, elimination, modification, or adoption that would adversely affect such person’s rights to indemnification or advancement of expenses shall be ineffective as to such person, except with respect to any threatened, pending, or completed proceeding that relates to or arises from (and only to the extent such proceeding relates to or arises from) any act or omission of such person occurring after the effective time of such amendment, repeal, modification, or adoption.

Anti-takeover Provisions

 

Until a Pioneer Southwest common unit has been transferred on Pioneer Southwest’s books, Pioneer Southwest and the transfer agent may treat the record holder of the unit as the absolute owner for all purposes, except as otherwise required by law or stock exchange regulations.

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Anti-Takeover Provisions

Pioneer has not opted out of Section 203 of the Delaware General Corporation LawDGCL, which prohibits a defined set of transactions between a Delaware corporation, such as Pioneer, and an “interested stockholder.” An interested stockholder is generally defined as a person who, together with any affiliates or associates of such person beneficially owns, directly or indirectly,“owns” (as defined in Section 203 of the DGCL, which includes direct and indirect beneficial ownership) 15% or more of the outstanding voting sharesstock of a Delaware corporation. This provision may prohibit the corporation from engaging in a business combinations betweencombination with an interested stockholder and a corporation for a period of three years after

Parsley has elected not to be governed by DGCL Section 203 and its certificate of incorporation does not include any “fair price” provisions.

the datetime the interested stockholder becomes an interested stockholder. The term “business combination” is broadly defined to include a broad array of transactions, including certain mergers, consolidations, sales or other dispositions of assets having a totalan aggregate market value in excess of 10% or more of the aggregate market value of the consolidated assets of the corporation or all of the outstanding stock of the corporation, and somecertain other transactions that would increase the interested stockholder’s proportionate share ownership in the corporation.

corporation, result in the interested stockholder’s acquisition of stock of a direct or indirect majority-owned subsidiary of the corporation or the receipt of the interested stockholder of certain financial benefits. This prohibition is effective unless:

(i) the business combination or the transaction that resulted in the stockholder becoming an interested stockholder is approved by the corporation’sPioneer’s board of directors prior to the time the interested stockholder becomes an interested stockholder;

(ii) the interested stockholder acquired at least 85% of the voting stock of the corporation, other than stock heldPioneer not owned by directors who are also officers or by qualified employee stock plans, in the transaction in which it becomes an interested stockholder; or

(iii) the business combination is approved by a majority of the corporation’sPioneer board of directors and by the affirmative vote of 662/3% of the outstanding voting stock that is not owned by the interested stockholder.

Pioneer Southwest’s partnership agreement contains specific provisions that are intended to discourage a person or group from attempting to remove Pioneer Southwest GP or otherwise change the management of Pioneer Southwest GP.

 

If any person or group other than Pioneer Southwest GP and its affiliates acquires beneficial ownershipPioneer’s certificate of 20% or more of any class of units,incorporation also contains a “fair price” provision that person or group loses voting rights on all of its units. This loss of voting rights does not applyapplies to certain business combination transactions involving any person or group that acquiresbeneficially owns at least 10% of the units fromaggregate voting power of Pioneer’s outstanding capital stock, referred to as a “related person.” The “fair price” provision requires the affirmative vote of the holders of (i) at least 80% of the voting power of Pioneer’s outstanding capital stock entitled to vote generally in the election of directors, and (ii) at least 662/3% of the voting power of Pioneer Southwest GPoutstanding capital stock entitled to vote generally in the election of directors that is not beneficially owned, directly or indirectly, by the related person to approve certain transactions between the related person and Pioneer or its affiliates andsubsidiaries, including any transfereesmerger, consolidation or share exchange, any sale, lease, exchange, pledge or other disposition of that personits assets or group approvedits subsidiaries having a fair market value of at least $10 million, any transfer or issuance of its securities or its subsidiaries’ securities, any adoption of a plan or proposal by Pioneer Southwest GPof its voluntary liquidation or to any persondissolution, certain reclassifications of its securities or group who acquiresrecapitalizations or certain other transactions, in each case involving the units with the prior approval of the Pioneer Southwest GP Board.related person. This voting

Section 203 of the Delaware General Corporation Law does

requirement will not apply to Pioneer Southwest.

certain transactions, including (i) any transaction in which the consideration to be received by the holders of each class or series of capital stock is (x) the same in form and amount as that paid in a tender offer in which the related person acquired at least 50% of the outstanding shares of such class or series and which was consummated not more than one year earlier, or (y) not less in amount than the highest per share price paid by the related person for shares of such class or series; and (ii) any transaction approved by Pioneer’s continuing directors.
Tax Information
“Double taxation” at the corporate and stockholder levels typically results when a corporation such as Pioneer earns income and distributes that income to its stockholders in the form of dividends. Stockholders will only recognize income on amounts actually distributed by Pioneer. Dividends paid by Pioneer out of current or accumulated earnings and profits are taxed as dividend income. Dividends in excess of current or accumulated earnings and profits are treated as a non-taxable return of basis to the extent of stockholders’ adjusted basis in their shares, with the excess taxed as capital gain.Pioneer Southwest is not a taxable entity for federal income tax purposes. Owners of Pioneer Southwest common units are required to take into account their share of Pioneer Southwest’s income, gains, losses, and deductions, regardless of whether they receive any cash distributions from Pioneer Southwest. A Pioneer Southwest unitholder may be required to recapture some deductions as ordinary income upon the sale of all or a portion of his Pioneer Southwest common units.Exclusive Forum

PIONEERUnless Pioneer consents in writing to the selection of an alternative forum, the Delaware Court of Chancery (or, if such court does not have jurisdiction, the federal district court for the District of Delaware) shall be the sole and exclusive forum for (i) any derivative action or proceeding brought on behalf of Pioneer, (ii) any action asserting a claim for a breach of a fiduciary duty owed by any director, officer, other employee or agent stockholder of Pioneer to Pioneer or Pioneer’s stockholders, (iii) any action against Pioneer arising pursuant to any provision of the DGCL or as to which the DGCL confers jurisdiction on the Delaware Court of Chancery, or (iv) any against Pioneer or any director, officer, other employee or agent of Pioneer asserting a claim governed by the internal affairs doctrine, including, without limitation, any action to interpret, apply, enforce or determine the validity of Pioneer’s certificate of incorporation or its bylaws, in each case subject to the Delaware Court of Chancery having personal jurisdiction over the indispensable parties named as defendants therein. Any person or entity purchasing or otherwise acquiring any interest in any securities of Pioneer shall be deemed to have notice of and to have consented to the provisions of the bylaws.

In addition, unless Pioneer consents in writing to the selection of an alternative forum, the federal district courts of the United States of America shall be the sole and exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act.

  

PIONEER SOUTHWEST

Dividends, if any, received by stockholders from Pioneer generally will constitute portfolio income and cannot be offset with losses from “passive activities.” Losses and credits generated within Pioneer do not pass throughUnless Parsley consents in writing to the stockholders. Afterselection of an alternative forum, the endsole and exclusive forum shall be the Delaware Court of Pioneer’s taxable year,Chancery for (i) any derivative action or proceeding brought on behalf of Parsley, (ii) any action asserting a claim of breach of a fiduciary duty owed by any director, officer, employee or agent of Parsley to Parsley or Parsley’s stockholders, receive(iii) any action asserting a Form 1099-DIVclaim against Parsley or any director or officer or other employee of Parsley arising pursuant to report their dividend income.A Pioneer Southwest unitholder’s shareany provision of Pioneer Southwest’s loss will bethe DGCL, Parsley’s certificate of incorporation or Parsley’s bylaws, or (iv) any action asserting a claim against Parsley or any director or officer or other employee of Parsley governed by the internal affairs doctrine, in each such case subject to the “passive activity” rules. Delaware Court of Chancery having personal jurisdiction over the indispensable parties named as defendants therein. Any person or entity purchasing or otherwise acquiring any interest in shares of capital stock of Parsley shall be deemed to have notice of and consented to the provisions of Parsley’s certificate of incorporation.

Parsley’s exclusive forum provision is not intended to apply to claims arising under the Securities Act or the Exchange Act. To the extent the provision could be construed to apply to such claims, there is uncertainty as to whether a court would enforce the forum selection provision with respect to such claims, and in any event, Parsley’s stockholders would not be deemed to have waived Parsley’s compliance with federal securities laws and the rules and regulations thereunder.

APPRAISAL RIGHTS

Under the passive activity rules, lossesDGCL, the stockholders of Delaware corporations have appraisal rights provided by Section 262 of the DGCL, to the extent applicable, provided they satisfy the special criteria and conditions set forth in Section 262 of the DGCL. For a partner arising from his ownership of interests in a publicly traded partnership, such as units indiscussion on appraisal rights or dissenters’ rights available (if any) to Pioneer Southwest, may only be usedstockholders with respect to offset passive income from that partnership until he has disposed of his entire interest in that partnership in a fully taxable transactionthe share issuance or to Parsley stockholders with an unrelated party.respect to the mergers, please see “The Mergers—Appraisal Rights or Dissenters’ Rights.”

MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES OF THE MERGERLEGAL MATTERS

The following is a summary of the material U.S. federal income tax consequences to Pioneer Southwest unitholders who exchange Pioneer Southwest common units in the merger. This summary is based on the Internal Revenue Code, Treasury Regulations issued under the Internal Revenue Code, and judicial and administrative interpretations thereof, each as in effect as of the date of this proxy statement/prospectus, all of which are subject to change at any time, possibly with retroactive effect. This discussion assumes that Pioneer Southwest common units are held as capital assets within the meaning of Section 1221 of the Internal Revenue Code. This summary does not discuss all of the tax consequences that may be relevant to particular Pioneer Southwest unitholders in light of their individual circumstances, including potential application of the alternative minimum tax, or any aspect of U.S. federal, state or local tax laws to Pioneer Southwest unitholders subject to special treatment under the U.S. federal income tax laws (such as insurance companies, financial institutions, tax-exempt organizations, corporations, Pioneer Southwest unitholders that are not (a) U.S. persons as defined in Section 7701(a)(30) of the Internal Revenue Code nor (b) trusts with valid elections in place under applicable U.S. Treasury Regulations to be treated as U.S. persons, partnerships or other pass-through entities (and persons holding Pioneer Southwest common units through a partnership or other pass-through entity), retirement plans, regulated investment companies, securities dealers, traders in securities who elect to apply a mark-to-market method of accounting, persons holding Pioneer Southwest common units as part of a “straddle,” “constructive sale,” or a “conversion transaction” for U.S. federal income tax purposes, or as part of some other integrated investment, expatriates or persons whose functional currency for tax purposes is not the U.S. dollar). If a partnership holds Pioneer Southwest common units, the tax treatment of a partner generally will depend on the status of the partner and upon the activities of the partnership. Persons who are partners in a partnership holding Pioneer Southwest common units should consult their tax advisors. This summary also does not discuss any tax consequences arising under the laws of any state, local, foreign or other tax jurisdiction or, except to the extent provided below, any tax consequences arising under U.S. federal tax laws other than U.S. federal income tax laws. We have not requested, and do not plan to request, any rulings from the IRS with respect to any matters discussed in this section, and the statements in this proxy statement/prospectus are not binding on the IRS or any court. As a result, neither Pioneer Southwest nor Pioneer can give any assurance that the IRS will not assert, or that a court will not sustain, a position contrary to any of the tax consequences described below.

PIONEER SOUTHWEST UNITHOLDERS SHOULD CONSULT THEIR OWN TAX ADVISORS AS TO THE SPECIFIC TAX CONSEQUENCES TO THEM OF THE MERGER IN LIGHT OF THEIR PARTICULAR CIRCUMSTANCES, INCLUDING THE APPLICABILITY AND EFFECT OF U.S. FEDERAL, STATE, LOCAL AND FOREIGN INCOME AND OTHER TAX LAWS.

General

The receipt of shares of Pioneer common stock in the merger will be a taxable transaction for U.S. federal income tax purposes. In general, a Pioneer Southwest unitholder who receives shares of Pioneer common stock in exchange for Pioneer Southwest common units pursuant to the merger will recognize gain or loss for U.S. federal income tax purposes in an amount equal to the difference, if any, between:

the amount realized, which is the sum of:

the fair market valuelegality of the shares of Pioneer common stock; and

the unitholder’s allocated share of any Pioneer Southwest pre-merger liabilities; and

the unitholder’s adjusted tax basis in Pioneer Southwest common units (including basis attributable to the unitholder’s share of Pioneer Southwest’s pre-merger liabilities).

Subject to the discussion immediately below, such gain or loss generally will be long-term capital gain or loss if the unitholder’s holding period for the Pioneer Southwest common units exceeds one year at the effective time of the merger. Long-term capital gains of non-corporate unitholders generally are eligible for reduced rates

of U.S. federal income taxation. In addition, any net gains recognized by Pioneer Southwest unitholders who are individuals, estates or trusts may be subject to tax imposed on “net investment income” under Section 1411 of the Code. The deductibility of capital losses is subject to limitations.

The basisstock issuable in the Pioneer common stock received by the Pioneer Southwest unitholders will equal the fair market value of that stock, and the holding period for that stock will begin on the day after the effective date of the merger.

Recapture

Upon the exchange of Pioneer Southwest common units for Pioneer common stock, a Pioneer Southwest unitholder may be treated as recognizing ordinary income (or loss) to the extent the merger consideration received is attributable to Pioneer Southwest’s “unrealized receivables” (including potential recapture items such as depreciation, depletion and intangible drilling and development costs) or “inventory items.” Under Section 751 of the Internal Revenue Code, the merger consideration generally is divided between such items and all other items, resulting in two constructive taxable transactions in which gain or loss is separately computed. Ordinary income attributable to unrealized receivables and inventory items may exceed overall net taxable gain realized upon the exchange of units in the merger and may be recognized even if an overall net taxable loss is realized. Thus, a Pioneer Southwest unitholder may recognize both ordinary income and a capital loss.

At-Risk and Passive Activity Loss Rules

Section 465(e) of the Internal Revenue Code requires individuals and closely held corporations to recapture losses previously allowed with respect to their interests in a partnership in the event their amount “at risk” with respect to that partnership becomes less than zero. The consequence of recapture is that a taxpayer must recognize income equal to the negative at-risk amount. A unitholder’s at-risk amount, or “at-risk basis,” generally is equal to such holder’s basis in the Pioneer Southwest common units, adjusted to exclude certain non-qualified partnership liabilities that otherwise would be included in such holder’s basis. In addition, although guidance is sparse, a unitholder’s at-risk basis likely will be increased by the amount of any gain recognized with respect to such Pioneer Southwest common units, including gain recognized in the merger. Assuming such gain increases a unitholder’s at-risk basis, such holders should not recognize recapture income under Section 465(e) of the Internal Revenue Code solely as a result of exchanging Pioneer Southwest common units in the merger. The at-risk limitation applies on an activity-by-activity basis, and in the case of gas and oil properties each property is treated as a separate activity. Thus, a taxpayer’s interest in each oil or gas property is generally required to be treated separately so that a loss from any one property is limited to the at-risk amount for that property and not the at-risk amount for all the taxpayer’s gas and oil properties. It is uncertain how this rule is implemented in the case of multiple gas and oil properties owned by a single entity treated as a partnership for federal income tax purposes. However, for taxable years ending on or before the date on which further guidance is published, the IRS will permit aggregation of oil or gas properties Pioneer Southwest owns in computing a unitholder’s at-risk limitation with respect to Pioneer Southwest. If a unitholder must compute his at-risk amount separately with respect to each oil or gas property Pioneer Southwest owns, such holder may not be allowed to utilize his share of losses or deductions attributable to a particular property even though he has a positive at-risk amount with respect to his Pioneer Southwest common units as a whole. Unitholders that may be subject to these “at-risk” rules should consult their tax advisors concerning their shares of Pioneer Southwest’s qualifying indebtedness and the application of these rules to their particular circumstances.

The passive loss limitation rules under the Internal Revenue Code generally provide that certain U.S. taxpayers, such as individuals, estates, trusts and certain corporations, are permitted to deduct losses from passive activities, which are generally defined as trade or business activities in which the taxpayer does not materially participate, only to the extent of the taxpayer’s income from those passive activities. Any gain or ordinary income recognized by a unitholder with respect to Pioneer Southwest common units exchanged in the merger generally will be treated as passive activity income (except to the extent attributable to any operating activity that

is not a passive activity with respect to such unitholder), and thus may be offset, as applicable, by any passive activity losses attributable to the ownership of the Pioneer Southwest common units that the unitholder incurs in the taxable year of the merger and by suspended passive activity losses from prior years. Because Pioneer Southwest is a “publicly traded partnership,” unitholders cannot utilize passive activity losses attributable to any investment or activity other than their ownership of the Pioneer Southwest common units. Because the merger will be a fully taxable transaction to unitholders and will terminate a unitholder’s entire interest in Pioneer Southwest, any remaining passive losses attributable to the ownership of such units (including suspended passive activity losses from prior years) generally will no longer be treated as passive losses and thus should be available to offset unitholders’ other gain or income (though the use of such losses may be subject to other limitations).

Allocations

Pioneer Southwest unitholders will be allocated their proportionate share of Pioneer Southwest’s items of income, gain, loss and deduction, for the period ending at the effective time of the merger. These allocations will be made in accordance with the terms of the Pioneer Southwest partnership agreement and taking into account any required special allocations. When computing their taxable income or loss, unitholders will be required to take into account their share of such income or loss (subject to the passive activity loss rules described above and other limitations). These allocations will result in adjustments to each Pioneer Southwest unitholder’s tax basis in the common units held by that unitholder and, therefore, may potentially affect the gain or loss resulting from the merger.

Tax Withholding

Pioneer and the exchange agent are authorized to deduct and withhold, or cause to be deducted and withheld, from the consideration otherwise payable pursuant to the merger agreement (in cash or Pioneer common stock, including Pioneer common stock that would otherwise be issued pursuant to the merger agreement) any applicable taxes payable in respect of such consideration, and to take such other actions as may be necessary in the opinion of Pioneer to satisfy its withholding obligations for the payment of such taxes. In the event that Pioneer common stock that would otherwise be issued pursuant to the merger agreement is used to satisfy such withholding obligations, the Pioneer common stock which may be so withheld or surrendered shall be limited to such Pioneer common stock having a fair market value on the date of withholding equal to the aggregate amount of such liabilities based on the minimum statutory withholding rates for federal, state, local and foreign income tax purposes.

PIONEER SOUTHWEST UNITHOLDER PROPOSALS

Under applicable Delaware law and Pioneer Southwest’s partnership agreement, Pioneer Southwest is not required to hold an annual meeting of its unitholders. Ownership of Pioneer Southwest common units does not entitle Pioneer Southwest unitholders to make proposals at the Pioneer Southwest special meeting. Under Pioneer Southwest’s partnership agreement, only its general partner can make a proposal at the meeting. Pioneer Southwest’s partnership agreement establishes a procedure for calling meetings whereby limited partners owning 20% or more of the outstanding units of the class for which a meeting is proposed may call a meeting. In any case, limited partners are not allowed to vote on matters that would cause the limited partners to be deemed to be taking part in the management and control of the business and affairs of Pioneer Southwest. Doing so would jeopardize the limited partners’ limited liability under the Delaware LP Act or the law of any other state in which Pioneer Southwest is qualified to do business.

OTHER MATTERS

As of the date of this proxy statement/prospectus, the Pioneer Southwest GP Board knows of no other matters that will be presented for consideration at the Pioneer Southwest special meeting other than as described in this proxy statement/prospectus.

In accordance with Pioneer Southwest’s partnership agreement and Delaware law, business transacted at the Pioneer Southwest special meeting will be limited to those matters set forth in the notice of special meeting or matters otherwise properly presented by Pioneer Southwest GP at the Pioneer Southwest special meeting. If any other matters are properly presented at the Pioneer Southwest special meeting, or any adjournments of the special meeting, and are voted upon, including matters incident to the conduct of the meeting, the enclosed proxy will confer discretionary authority on the individuals named as proxy to vote the units represented by proxy as to any other matters. It is intended that the persons named in the enclosed proxy and acting thereunder will vote in accordance with their best judgment on any such matter.

LEGAL MATTERS

The validity of shares of Pioneer common stock to be issued in the merger and certain tax matters relating to the mergermergers will be passed upon for Pioneer by Gibson, Dunn & Crutcher LLP. Certain U.S. federal income tax consequences relating to the integrated mergers will be passed upon for Parsley by Vinson & Elkins L.L.P., Dallas, Texas. Vinson & Elkins L.L.P. has provided legal services to Pioneer Southwest in the past regarding matters unrelated to the merger.

EXPERTS

Pioneer Natural Resources Company

The consolidated financial statements of Pioneer Natural Resources Company appearing in Pioneer Natural Resources Company’sPioneer’s Annual Report on Form 10-K for the year ended December 31, 2012,2019, and the effectiveness of Pioneer Natural Resources Company’sPioneer’s internal control over financial reporting as of December 31, 2012,2019, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon, included therein and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such reports given on the authority of such firm as experts in accounting and auditing.

The consolidated financial statements of Pioneer Southwest Energy Partners L.P. appearing in Pioneer Southwest Energy Partners L.P.’s Annual Report on Form 10-K for the year ended December 31, 2012, and the effectiveness of Pioneer Southwest Energy Partners L.P.’s internal control over financial reporting as of December 31, 2012, have been audited by Ernst & Young LLP, independent registered public accounting firm, as set forth in their reports thereon, included therein and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such reports given on the authority of such firm as experts in accounting and auditing.

Estimated quantities of Pioneer’s oil and gas reserves and the net present value of such reserves as of December 31, 2012, set forth in or2019, incorporated by reference in this proxy statement/prospectusherein are based upon reserve reports prepared by Pioneer and audited by (i) Netherland, Sewell & Associates, Inc. with respect to Pioneer’s major properties, and (ii) Ryder Scott Company, L.P. with respect to Pioneer’s Oooguruk field properties in Alaska.properties. The reserve auditsaudit conducted by Netherland, Sewell & Associates, Inc. and Ryder Scott Company, L.P. in the aggregate represented 95%83% of Pioneer’s estimated proved quantities of reserves as of December 31, 2012. Such2019. Pioneer has incorporated these estimates are incorporated herein by reference in reliance on the authority of such firms as experts in such matters.

Estimated quantities of Pioneer Southwest’s oil and gas reserves and the net present value of such reserves as of December 31, 2012, set forth in or incorporated by reference in this proxy statement/prospectus are based upon reserve reports prepared by Pioneer Southwest and audited by Netherland, Sewell & Associates, Inc. Such estimates are incorporated herein by reference in reliance on the authority of such firm as experts in such matters.

Parsley Energy, Inc.

The consolidated financial statements of Parsley and its subsidiaries as of December 31, 2019 and 2018, and for each of the years in the three-year period ended December 31, 2019, and management’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2019 have been incorporated by reference herein in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.

The consolidated financial statements of Jagged Peak as of and for the year ended December 31, 2019 have been audited by Ernst & Young LLP, independent auditors, as set forth in their report thereon, and incorporated herein by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such report given on the authority of such firm as experts in accounting and auditing.

The consolidated financial statements of Jagged Peak as of December 31, 2018 and 2017, and for each of the years in the three-year period ended December 31, 2018, and management’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2018 have been incorporated by reference herein in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.

Certain estimates of Parsley’s net oil and natural gas reserves as of December 31, 2019 and related information included or incorporated by reference herein are based upon reserve reports prepared by Parsley and audited by Netherland, Sewell & Associates, Inc., Parsley’s independent consulting petroleum engineers. All such information has been so included or incorporated in reliance on the authority of such experts in such matters.

Estimates of proved reserves attributable to certain interests of Jagged Peak Energy LLC as of December 31, 2019 and 2018 and related information incorporated by reference herein have been prepared based on reports by Ryder Scott Company, L.P., independent consulting petroleum engineers, and all such information has been so incorporated in reliance on the authority of such experts in such matters.

STOCKHOLDER PROPOSALS

Pioneer

Pioneer will hold a regular annual meeting of stockholders in 2021 (the “Pioneer 2021 annual meeting”) regardless of whether the mergers are completed.

Any Pioneer stockholder who desires to submit a proposal for action at the Pioneer 2021 annual meeting and wishes to have the proposal (a “Rule 14a-8 Proposal”) included in Pioneer’s proxy materials must follow the procedures set forth in Rule 14-8 under the Exchange Act and must submit the Rule 14a-8 Proposal to Pioneer at its principal executive offices no later than December 10, 2020, unless Pioneer notifies the stockholders otherwise. Only those Rule 14a-8 Proposals that are timely received by Pioneer and proper for stockholder action (and otherwise proper) will be included in Pioneer’s proxy materials. In addition, a Rule 14a-8 Proposal must comply with Article Nine of Pioneer’s certificate of incorporation and its bylaws.

Pioneer stockholders desiring to propose action at the Pioneer 2021 annual meeting other than pursuant to Rule 14a-8 of the Exchange Act must comply with Article Nine of Pioneer’s certificate of incorporation and its bylaws. In order to submit business to be considered at an annual meeting, a stockholder must submit written notice of the proposed business to Pioneer no later than 60 days before the annual meeting or, if later, ten days after the first public notice of the annual meeting is sent to stockholders. The stockholder and the stockholder’s written notice must comply with all the requirements set forth in the certificate of incorporation and bylaws of Pioneer, including setting forth all of the information required therein. The person presiding at the annual meeting will determine whether business is properly brought before the meeting and will not permit the consideration of any business not properly brought before the meeting.

Under Rule 14a-4(c) of the Exchange Act, the Pioneer board may exercise discretionary voting authority under proxies solicited by it with respect to any matter properly presented by a stockholder at the Pioneer 2021 annual meeting that the stockholder does not seek to have included in Pioneer’s proxy statement if (except as described in the following sentence) the proxy statement discloses the nature of the matter and how the Pioneer board intends to exercise its discretion to vote on the matter, unless Pioneer is notified of the proposal on or before February 23, 2021, and the stockholder satisfies the other requirements of Rule 14a-4(c)(2). If Pioneer first receives notice of the matter after February 23, 2021, and the matter nonetheless is permitted to be presented at the Pioneer 2021 annual meeting, the Pioneer board may exercise discretionary voting authority with respect to the matter without including any discussion of the matter in the proxy statement for the meeting. Pioneer reserves the right to reject, rule out of order or take other appropriate action with respect to any proposal that does not comply with the requirements described above and other applicable requirements. “Discretionary voting authority” is the ability to vote proxies that stockholders have executed and submitted to Pioneer, on matters not specifically reflected in Pioneer’s proxy materials, and on which stockholders have not had an opportunity to vote by proxy.

Written requests for inclusion of any stockholder proposal should be addressed to the Corporate Secretary, Pioneer Natural Resources Company, 777 Hidden Ridge, Irving, Texas 75038. Pioneer suggests that stockholder proposals be sent by certified mail, return receipt requested.

The Pioneer board has delegated to its Nominating and Corporate Governance Committee the responsibility to identify, evaluate and recommend to the Pioneer board nominees for election at the annual meeting of stockholders, as well as for filling vacancies or additions on the Pioneer board that may occur between annual meetings. In considering candidates for the Pioneer board, the Nominating and Corporate Governance Committee will consider the entirety of each candidate’s credentials, including his or her experience, if applicable, as a current director of Pioneer. There is currently no set of specific minimum qualifications that must be met by a nominee recommended by the Nominating and Corporate Governance Committee, as different factors may assume greater or lesser significance at particular times and the needs of the Pioneer board may vary in light of its composition and the Nominating and Corporate Governance Committee’s perceptions about future issues and

needs. However, while the Nominating and Corporate Governance Committee does not maintain a formal list of qualifications, in making its evaluation and recommendation of candidates, the Nominating and Corporate Governance Committee endeavors to recommend only director candidates who possess the highest personal values and integrity; who have experience and have exhibited achievements in one or more of the key professional, business, financial, legal and other challenges that face a large U.S. independent oil and gas company; who exhibit sound judgment, intelligence, personal character, and the ability to make independent analytical inquiries; who demonstrate a willingness to devote adequate time to Pioneer board duties; and who are likely to be able to serve on the Pioneer board for a sustained period.

The Nominating and Corporate Governance Committee endeavors to achieve for the Pioneer board an overall balance of backgrounds and diversity of experience at policy-making levels with a complementary mix of skills and professional experience in areas relevant to Pioneer’s business, while also ensuring that the size of the Pioneer board is appropriate to function effectively and efficiently. The Nominating and Corporate Governance Committee believes it has achieved that balance through the representation on the Pioneer board of members having experience in the oil and gas industry, including in the areas of operations, engineering, geology, safety, midstream and downstream segments, macroeconomics, geopolitics, law, corporate governance, accounting and investment analysis, among other areas.

In identifying potential director candidates, the Nominating and Corporate Governance Committee relies on any source available for the identification and recommendation of candidates, including its directors, officers and stockholders. The Nominating and Corporate Governance Committee does not intend to alter the manner in which it evaluates candidates based on whether the candidate is recommended by a stockholder or not. However, in evaluating a candidate’s relevant business experience, the Nominating and Corporate Governance Committee may consider previous experience as a member of a board of directors. The Nominating and Corporate Governance Committee will also consider such factors as diversity, including differences in viewpoints, background, education, gender and/or ethnicity, age, and other individual qualifications and attributes. In addition, the Nominating and Corporate Governance Committee from time to time may engage a third-party search firm to identify or evaluate, or assist in identifying or evaluating potential candidates, for which the third party search firm will be paid a fee. Pioneer is committed to considering candidates for the Pioneer board regardless of gender, race, ethnicity and national origin. In the event that the Nominating and Corporate Governance Committee determines to recruit candidates from outside Pioneer as potential nominees to join the Pioneer board, the Nominating and Corporate Governance Committee will use its best efforts to include, and will instruct any third-party search firm the Committee engages to assist the Nominating and Corporate Governance Committee in seeking candidates for the Pioneer board to include, qualified candidates with a diversity of gender and race/ethnicity in the initial pool from which the Nominating and Corporate Governance Committee selects director candidates.

Any stockholder desiring to nominate an individual for election to the Pioneer board must comply with Article Nine of Pioneer’s certificate of incorporation and its bylaws, as described above with respect to stockholder proposals. To be considered at an annual meeting, a nomination must be submitted in writing to the Corporate Secretary, Pioneer Natural Resources Company, 777 Hidden Ridge, Irving, Texas 75038, no later than 60 days before the annual meeting or, if later, ten days after the first public notice of the annual meeting is sent to stockholders. In addition, the nominating stockholder’s notice must set forth all of the information required by, and comply with, Pioneer’s certificate of incorporation and bylaws, including the following:

the nominee’s name, address and other personal information;

the number of shares of each class and series of stock of Pioneer beneficially owned by such nominee;

the nominating stockholder’s name and address (as they appear on Pioneer’s records), business address and telephone numbers, ownership of Pioneer’s stock and other personal information; and

all other information required to be disclosed pursuant to Regulation 14A of the Exchange Act.

The person presiding at the annual meeting will determine whether a nomination is properly brought before the meeting and will not permit the consideration of a nomination not properly brought before the meeting.

In addition, Pioneer’s bylaws provide that under certain circumstances, a stockholder or group of stockholders meeting the eligibility requirements specified in the bylaws may include director candidates that they have nominated in Pioneer’s proxy materials. These proxy access provisions of the bylaws provide, among other things, that a stockholder or group of up to 20 stockholders seeking to include director candidates in Pioneer’s annual meeting proxy statement must have owned three percent or more of Pioneer’s issued and outstanding common stock continuously for at least the previous three years. The number of stockholder-nominated candidates appearing in any annual meeting proxy statement cannot exceed the greater of two or 20 percent of the number of directors then serving on the Pioneer board (rounded down to the nearest whole number). This maximum number is subject to reduction in certain circumstances, such as a nomination of a candidate by an eligible stockholder or group of stockholders whose nomination is subsequently withdrawn, and there being one or more candidates proposed for nomination by an eligible stockholder or group of stockholders who the Pioneer board itself decides to nominate for election. If the number of stockholder-nominated candidates exceeds 20 percent, each nominating stockholder or group of stockholders may select one nominee for inclusion in Pioneer’s proxy materials until the maximum number is reached. The order of selection would be determined by the amount (largest to smallest) of shares of Pioneer common stock held by each nominating stockholder or group of stockholders.

To have a stockholder-nominated candidate included in Pioneer’s proxy materials pursuant to Pioneer’s proxy access bylaw, the nominating stockholder or group of stockholders must submit to the Corporate Secretary of Pioneer at Pioneer’s principal executive office the information and documentation specified in the bylaws not less than 120 days nor more than 150 days prior to the anniversary of the date that Pioneer mailed its proxy statement for the prior year’s annual meeting, unless the annual meeting is not scheduled to be held within a period that commences 30 days before the first anniversary date of the prior year’s annual meeting and ends 30 days after the first anniversary date of the prior year’s annual meeting of stockholders (an annual meeting date outside such period being referred to herein as an “other meeting date”), in which case the information and documentation must be submitted by the later of the close of business on the date that is 180 days prior to such other meeting date or the tenth day following the date such other meeting date is first publicly announced or disclosed. Thus, any eligible stockholder or group of stockholders who desires to nominate a director candidate for election at the Pioneer 2021 annual meeting and wishes to have the candidate included in Pioneer’s proxy materials, must submit all of the required information and documentation to Pioneer no earlier than November 10, 2020 and no later than December 10, 2020.

Parsley

If the Parsley merger proposal is approved by the requisite vote of Parsley stockholders and the mergers are completed, Parsley will become a wholly-owned subsidiary of Pioneer and, consequently, Parsley will not hold an annual meeting of its stockholders in 2021. Parsley stockholders will be entitled to participate, as Pioneer stockholders following the mergers, in the Pioneer 2021 annual meeting of stockholders.

If the Parsley merger proposal is not approved by the requisite vote of Parsley stockholders or if the mergers are not completed for any reason, Parsley intends to hold an annual meeting of its stockholders in 2021.

Under Rule 14a-8, proposals that Parsley stockholders intend to have included in Parsley’s 2021 proxy materials must be submitted to Parsley at its principal executive offices (Parsley Energy, Inc., 303 Colorado Street, Austin, Texas 78701, Attn: General Counsel) no later than December 7, 2020, unless the date of the Parsley 2021 annual meeting of stockholders is changed by more than 30 days from May 21, 2021, in which case the proposal must be received at Parsley’s principal executive offices a reasonable time before Parsley begins to print and mail its 2021 proxy materials. Any such stockholder proposal must meet the requirements set forth in Rule 14a-8.

Pursuant to the proxy access provision in Parsley’s bylaws, in order for a stockholder or group of stockholders to include a director nominee in Parsley’s proxy materials for the Parsley 2021 annual meeting, notice of the proxy access nomination must be delivered to Parsley’s principal executive offices (Parsley Energy, Inc., Attn: General Counsel, 303 Colorado Street, Austin, Texas 78701) no later than the close of business on December 7, 2020 and no earlier than November 7, 2020, and the nomination must otherwise satisfy the requirements in Parsley’s bylaws.

Any Parsley stockholder who desires to submit a proposal for action, including a director nominee, at the Parsley 2021 annual meeting, but does not wish to have such proposal included in Parsley’s proxy materials, must submit such proposal to Parsley at its principal executive offices (Parsley Energy, Inc., 303 Colorado Street, Austin, Texas 78701, Attn: General Counsel) between January 21, 2021 and the close of business on February 20, 2021. Parsley will only consider proposals that meet the requirements of the applicable rules of the SEC and Parsley’s bylaws.

A copy of Parsley’s bylaws setting forth the requirements for the nomination of director candidates by stockholders and the requirements for proposals by stockholders may be obtained by submitting a request to Parsley at Parsley’s principal executive offices (Parsley Energy, Inc., Attn: General Counsel, 303 Colorado Street, Austin, Texas 78701). A nomination or proposal that does not comply with the above procedures will be disregarded. Compliance with the above procedures does not require Parsley to include the proposed nominee or proposal in Parsley’s proxy materials.

HOUSEHOLDING OF PROXY MATERIALS

SEC rules permit companies and intermediaries such as brokers to satisfy delivery requirements for proxy statements and notices with respect to two or more stockholders sharing the same address by delivering a single proxy statement or a single notice addressed to those stockholders. This process, commonly called “householding,” provides cost savings for companies. Some brokers household proxy materials, delivering a single proxy statement or notice to multiple stockholders sharing an address unless contrary instructions have been received from the affected stockholders. Once you have received notice from your broker that they will be householding materials to your address, householding will continue until you are notified otherwise or until you revoke your consent. If, at any time, you no longer wish to participate in householding and would prefer to receive a separate proxy statement or notice, or if your household is receiving multiple copies of these documents and you wish to request that future deliveries be limited to a single copy, please notify your broker.

Requests for additional copies of this joint proxy statement/prospectus should be directed to, as applicable, Pioneer Natural Resources Company, 777 Hidden Ridge, Irving, Texas 75038, Telephone: (972) 969-4019, or Parsley Energy, Inc., 303 Colorado Street, Austin, Texas 78701, Telephone: (737) 704-2300.

WHERE YOU CAN FIND MORE INFORMATION

Pioneer and Pioneer SouthwestParsley each file annual, quarterly and current reports, proxy statements and other information with the SEC under the Exchange Act. YouThe SEC maintains a website that contains reports, proxy and information statements, and other information regarding issuers, including Pioneer and Parsley, who file electronically with the SEC. The address of that site is www.sec.gov. Investors may readalso consult Pioneer’s or Parsley’s website for more information about Pioneer or Parsley, respectively. Pioneer’s website is www.pxd.com and copy any documentParsley’s website is www.parsleyenergy.com. Information included on these websites is not incorporated by reference into this joint proxy statement/prospectus.

Pioneer has filed with the SEC at its public reference room at 100 F Street, N.E., Room 1580, Washington, D.C. 20549. Please call the SEC at1-800-SEC-0330 for further information on the operation of the public reference room.

The SEC also maintains an internet site (www.sec.gov) that contains the reports, proxy statements and other information filed by Pioneer and Pioneer Southwest electronically with the SEC. In addition, documents filed by Pioneer and Pioneer Southwest can be inspected at the offices of the New York Stock Exchange, Inc., 20 Broad Street, New York, New York 10005.

Pioneer has filed a registration statement on Form S-4, with of which this joint proxy statement/prospectus forms a part. The registration statement registers the SEC under issuance of shares of Pioneer common stock in

the Securities Act to register themergers and shares of Pioneer common stock to be issuedreserved for issuance in connection with the merger. This proxy statement/prospectus constitutesmergers. The registration statement, including the prospectus ofattached exhibits, contains additional relevant information about Pioneer filed as part of the registration statement. This proxy statement/prospectus does not contain all of the information that Pioneer stockholders and Pioneer Southwest unitholders can find in the registration statement or the exhibits to the registration statement because certain parts of the registration statement are omitted in accordance with thecommon stock. The rules and regulations of the SEC. TheSEC allow Pioneer and Parsley to omit certain information included in the registration statement and its exhibits contain important information about Pioneer and Pioneer Southwest and their respective businesses, financial conditions and results of operations and are available for inspection and copying as indicated above.from this joint proxy statement/prospectus.

TheIn addition, the SEC allows Pioneer and Pioneer SouthwestParsley to incorporate by reference information into this proxy statement/prospectus, which means that Pioneer and Pioneer Southwest can disclose important information to you by referring you to those documents. Theother documents filed separately with the SEC. This information incorporated by reference is considered to be a part of this joint proxy statement/prospectus, except for any information that is superseded by information that is included directly in this joint proxy statement/prospectus. Any later information filedprospectus or incorporated by reference subsequent to the date of this joint proxy statement/prospectus as described below. This joint proxy statement/prospectus also contains summaries of certain provisions contained in some of the Pioneer or Pioneer Southwest withParsley documents described herein, but reference is made to the SEC pursuant to Section 13(a), 13(c), 14 or 15(d)actual documents for complete information. All of the Exchange Act up untilsummaries are qualified in their entirety by reference to the closingactual documents. Some documents or information, such as that called for by Item 2.02 and 7.01 of the merger will beCurrent Report on Form 8-K, or the exhibits related thereto under Item 9.01 of Form 8-K, are deemed to befurnished and not filed in accordance with SEC rules. None of those documents and none of that information is incorporated by reference into this proxy statement/prospectus and will automatically update and supersede this information. Therefore, before you vote to approve the merger proposal, you should always check for reports Pioneer and Pioneer Southwest may have filed with the SEC after the date of thisjoint proxy statement/prospectus.

This joint proxy statement/prospectus incorporates by reference the documents listed below that Pioneer and Pioneer SouthwestParsley have previously filed with the SEC. These documents contain important information about the companies, their respective financial condition and other matters.

Pioneer SEC Filings
(SEC File No. 001-13245; CIK No. 0001038357)

Period or Date Filed

Annual Report on Form 10-KFiscal Year ended December 31, 2019
Quarterly Reports on Form 10-QFiscal Quarters ended March  31, 2020, June  30, 2020 and September 30, 2020
Current Reports on Form 8-KFiled on March  10, 2020, April  6, 2020, May  8, 2020, May  11, 2020, May  15, 2020, May  27, 2020, August  11, 2020, October  7, 2020, October  13, 2020, October  20, 2020, October  21, 2020, November  4, 2020 and November 20, 2020 (other than the portions of those documents not deemed to be filed)
Definitive Proxy Statement on Schedule 14A to the extent incorporated by reference into Pioneer’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019Filed on April 9, 2020
The description of Pioneer common stock contained in its Registration Statement on Form 8-A, as that description may be updated from time to timeFiled on August 5, 1997, as amended August 8, 1997, September  16, 2013 and in Exhibit 4.7 to the Pioneer Form 10-K

Parsley SEC Filings
(SEC File No. 001-36463; CIK No. 0001594466)

Period or Date Filed

Annual Report on Form 10-KFiscal Year ended December 31, 2019
Quarterly Reports on Form 10-QFiscal Quarters ended March  31, 2020, June  30, 2020 and September 30, 2020

Current Reports on Form 8-KFiled on January  2, 2020, January  9, 2020, January  10, 2020, February  6, 2020, February  7, 2020, February  11, 2020, March  9, 2020, April  10, 2020, April  28, 2020, May  22, 2020, October  20, 2020 and October 21, 2020 (other than the portions of those documents not deemed to be filed)
Definitive Proxy Statement on Schedule 14A to the extent incorporated by reference into Parsley’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019Filed on April 6, 2020
The description of Parsley Class A common stock contained in its Registration Statement on Form 8-A, as that description may be updated from time to timeFiled on May 20, 2014

In addition, Pioneer and Parsley incorporate by reference any future filings they make with the SEC excluding any information in any Current Reportunder Section 13(a), 13(c), 14, or 15(d) of the Exchange Act (i) after the date of the initial filing and prior to the effectiveness of the registration statement on Form 8-KS-4 of which this joint proxy statement/prospectus forms a part and (ii) after the date of this joint proxy statement/prospectus and prior to the date of the Pioneer special meeting and the Parsley special meeting (other than information furnished pursuant to Item 2.02 or Item 7.01 (unless otherwise indicated), which is not deemed filed under the Exchange Act.

Pioneer’s Filings (SEC File No. 001-13245)

Annual Report on Form 10-K for the year ended December 31, 2012;

Quarterly Report on Form 10-Q for the quarters ended March 31, 2013, and June 30, 2013;

Current Reports on Form 8-K filed with the SEC on February 7, 2013, February 21, 2013, February 22, 2013, February 26, 2013, March 8, 2013, May 7, 2013, May 28, 2013, July 29, 2013, August 12, 2013, and September 16, 2013; and

The description of Pioneer’s common stock in the registration statement on Form 8-A filed on July 24, 2001, and including any other amendments or reports filed for the purpose of updating such description, including Pioneer’s Current Report on Form 8-K, filed with the SEC on September 16, 2013 for such purpose.

You may request a copy of these filings at no cost, by writing or telephoning Pioneer at the following address:

Pioneer Natural Resources Company

5205 North O’Connor Blvd., Suite 200

Irving, Texas 75039

Attention: Investor Relations

Telephone: (972) 444-9001

Pioneer also makes available free of charge on its internet website at www.pxd.com its Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, and any amendments unless expressly stated otherwise therein). Such documents are considered to those reports, as soon as reasonably practicable after it electronically files such material with, or furnishes it to, the SEC. Information contained on Pioneer’s website is notbe a part of this joint proxy statement/prospectus.prospectus, effective as of the date such documents are filed.

Pioneer Southwest’s Filings (SEC File No. 001-33676)

Annual Report on Form 10-K for the year ended December 31, 2012;

Quarterly Report on Form 10-Q for the quarters ended March 31, 2013, and June 30, 2013; and

Current Reports on Form 8-K filed withYou can obtain any of these documents from the SEC, on February 26, 2013, March 11, 2013, May 7, 2013, and August 12, 2013.

You may request a copythrough the SEC’s website at the address described above, or Pioneer or Parsley, as applicable, will provide you with copies of these filings at no cost, by writingdocuments, without charge, upon written or telephoning Pioneer Southwest at the following address:

Pioneer Southwest Energy Partners L.P.

5205 N. O’Connor Blvd., Suite 200

Irving, Texas 75039

Attention: Investor Relations

Telephone: (972) 969-4019

Pioneer Southwest also makes available free of charge on its internet website at www.pioneersouthwest.com its Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, and any amendments to those reports, as soon as reasonably practicable after it electronically files such material with, or furnishes it to, the SEC. Information contained on Pioneer Southwest’s website is not part of this proxy statement/prospectus.

INDEX TO UNAUDITED PRO FORMA

CONDENSED CONSOLIDATED FINANCIAL STATEMENTSoral request to:

 

Pioneer Natural Resources Company Unaudited Pro Forma Condensed Consolidated Financial Statements:

777 Hidden Ridge

Irving, Texas 75038

(972) 969-4019

  

IntroductionParsley Energy, Inc.

F-2

Unaudited Pro Forma Condensed Consolidated Balance Sheet at June 30, 2013303 Colorado Street

F-3

Unaudited Pro Forma Condensed Consolidated Statement of Operations for the six months ended June  30, 2013Austin, Texas 78701

F-5

Unaudited Pro Forma Condensed Consolidated Statement of Operations for the year ended December 31, 2012(737) 704-2300

F-6

Notes to Unaudited Pro Forma Condensed Consolidated Financial Statements

F-7

In the event of conflicting information in this joint proxy statement/prospectus in comparison to any document incorporated by reference into this joint proxy statement/prospectus, or among documents incorporated by reference, the information in the latest filed document controls.

PIONEER NATURAL RESOURCES COMPANYYou should rely only on the information contained or incorporated by reference into this joint proxy statement/prospectus. No one has been authorized to provide you with information that is different from that contained in, or incorporated by reference into, this joint proxy statement/prospectus. This joint proxy statement/prospectus is dated [], 2020. You should not assume that the information contained in this joint proxy statement/prospectus is accurate as of any date other than that date. You should not assume that the information incorporated by reference into this joint proxy statement/prospectus is accurate as of any date other than the date of such incorporated document. Neither the mailing of this joint proxy statement/prospectus to Pioneer stockholders or Parsley stockholders nor the issuance by Pioneer of Pioneer common stock in the mergers will create any implication to the contrary.

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTSThis joint proxy statement/prospectus contains a description of the representations and warranties that each of Pioneer and Parsley made to the other in the merger agreement. Representations and warranties made by Pioneer, Parsley and other applicable parties are also set forth in contracts and other documents that are attached or filed as exhibits to this joint proxy statement/prospectus or are incorporated by reference into this joint proxy statement/prospectus. These materials are included or incorporated by reference to provide you with information

Introduction

Pioneer, Pioneer USA, MergerCo, Pioneer Southwestregarding the terms and Pioneer Southwest GP entered intoconditions of the agreements. Accordingly, the representations and warranties and other provisions of the merger agreement on August 9, 2013, pursuantand the contracts and other documents that are attached to which MergerCo will merge with andor filed as exhibits to this joint proxy statement/prospectus or are incorporated by reference into Pioneer Southwest, with Pioneer Southwest surviving the merger as an indirect wholly-owned subsidiary of Pioneer, and all Pioneer Southwest common units outstanding at the effective time of the merger andthis joint proxy statement/prospectus should not owned by Pioneer USA will be cancelled and converted into the right to receive 0.2325 of a share of Pioneer common stock.

The accompanying unaudited pro forma condensed consolidated financial statements have been prepared to assist in analysis of the financial effects of the merger. These unaudited pro forma condensed consolidated financial statements are derived in part from, andread alone, but instead should be read only in conjunction with Pioneer’s financial statements includedthe other information provided elsewhere in Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, and Pioneer’s Quarterly Report on Form 10-Q for the period ended June 30, 2013. The unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 2012, and the six months ended June 30, 2013, have been prepared to give effect to the proposed merger as if it had occurred on January 1, 2012. The unaudited pro forma condensed consolidated balance sheet has been prepared to give effect to the proposed merger as if it had occurred on June 30, 2013.this joint proxy statement/prospectus or incorporated by reference into this joint proxy statement/prospectus.

The unaudited pro forma condensed consolidated financial statements are based on assumptions that Pioneer and Pioneer Southwest believe are reasonable under the circumstances and are intended for informational purposes only. They are not necessarily indicative of the financial results that would have occurred if the merger transactions had taken place on the dates indicated, nor are they indicative of the future consolidated results of Pioneer. They also do not reflect non-recurring items arising directly from the merger or any cost savings that the combined entity may achieve.

The merger will be accounted for in accordance with Financial Accounting Standards Board Accounting Standards Codification 810,Consolidations — Overall — Changes in Parent’s Ownership Interest in a Subsidiary, which is referred to as ASC 810. As Pioneer will control Pioneer Southwest before and after the merger, the changes in Pioneer’s ownership interest in Pioneer Southwest will be accounted for as an equity transaction and no gain or loss on the merger will be recognized in Pioneer’s consolidated statements of operations.

PIONEER NATURAL RESOURCES COMPANY

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET

AS OF JUNE 30, 2013

(in thousands)

   Pioneer  Pro Forma
Adjustments
  Pro Forma
Pioneer
 
ASSETS  

Current assets:

    

Cash and cash equivalents

  $695,625   $(4,000)(a)  $691,625  

Accounts receivable:

    

Trade, net

   345,812    —      345,812  

Due from affiliates

   4,676    —      4,676  

Income taxes receivable

   927    —      927  

Inventories

   198,650    —      198,650  

Prepaid expenses

   23,634    —      23,634  

Other current assets:

    

Derivatives

   191,697    —      191,697  

Other

   4,171    —      4,171  
  

 

 

  

 

 

  

 

 

 

Total current assets

   1,465,192    (4,000  1,461,192  
  

 

 

  

 

 

  

 

 

 

Property, plant and equipment, at cost:

    

Oil and gas properties, using the successful efforts method of accounting:

    

Proved properties

   15,373,058    —      15,373,058  

Unproved properties

   133,172    —      133,172  

Accumulated depletion, depreciation and amortization

   (4,859,716  —      (4,859,716
  

 

 

  

 

 

  

 

 

 

Total property, plant and equipment

   10,646,514    —      10,646,514  
  

 

 

  

 

 

  

 

 

 

Goodwill

   279,687    —      279,687  

Other property and equipment, net

   1,231,127    —      1,231,127  

Other assets:

    

Investment in unconsolidated affiliate

   228,475    —      228,475  

Derivatives

   137,898    —      137,898  

Other assets, net

   173,694    —      173,694  
  

 

 

  

 

 

  

 

 

 
  $14,162,587   $(4,000 $14,158,587  
  

 

 

  

 

 

  

 

 

 

The accompanying notes are an integral part of these unaudited pro forma condensed consolidated financial statements.

PIONEER NATURAL RESOURCES COMPANY

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET (Continued)

AS OF JUNE 30, 2013

(in thousands)

   Pioneer  Pro Forma
Adjustments
  Pro Forma
Pioneer
 
LIABILITIES AND EQUITY  

Current liabilities:

    

Accounts payable:

    

Trade

  $813,532   $—     $813,532  

Due to affiliates

   65,151    —      65,151  

Interest payable

   61,464    —      61,464  

Income taxes payable

   938    —      938  

Deferred income taxes

   25,344    —      25,344  

Other current liabilities:

    

Derivatives

   6,453    —      6,453  

Other

   39,246    —      39,246  
  

 

 

  

 

 

  

 

 

 

Total current liabilities

   1,012,128    —      1,012,128  
  

 

 

  

 

 

  

 

 

 

Long-term debt

   2,823,428    —      2,823,428  

Deferred income taxes

   2,390,144    (164,526)(b)   2,225,618  

Other liabilities

   288,730    —      288,730  

Equity:

    

Common stock

   1,458    —      1,458  

Additional paid-in capital

   4,844,720    (4,000)(a)   4,996,328  
    (164,526)(b)  
    (178,211)(c)  
    169,293 (d)  

Treasury stock, at cost

   (327,927  178,211 (c)   (149,716

Retained earnings

   2,947,040        2,947,040  
  

 

 

  

 

 

  

 

 

 

Total equity attributable to common stockholders

   7,465,291    329,819    7,795,110  

Noncontrolling interest in consolidated subsidiaries

   182,866    (169,293)(d)   13,573  
  

 

 

  

 

 

  

 

 

 

Total equity

   7,648,157    160,526    7,808,683  
  

 

 

  

 

 

  

 

 

 

Commitments and contingencies

    
  $14,162,587   $(4,000 $14,158,587  
  

 

 

  

 

 

  

 

 

 

The accompanying notes are an integral part of these unaudited pro forma condensed consolidated financial statements.

PIONEER NATURAL RESOURCES COMPANY

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

FOR THE SIX MONTHS ENDED JUNE 30, 2013

(in thousands, except per share data)

   Pioneer  Pro Forma
Adjustments
  Pro Forma
Pioneer
 

Revenues and other income:

    

Oil and gas

  $1,632,991   $—     $1,632,991  

Interest and other

   20,474    —      20,474  

Derivative gains, net

   102,202    —      102,202  

Gain on disposition of assets, net

   215,404    —      215,404  
  

 

 

  

 

 

  

 

 

 
   1,971,071    —      1,971,071  
  

 

 

  

 

 

  

 

 

 

Costs and expenses:

    

Oil and gas production

   348,628    —      348,628  

Production and ad valorem taxes

   108,134    —      108,134  

Depletion, depreciation and amortization

   480,353    —      480,353  

Exploration and abandonments

   51,600    —      51,600  

General and administrative

   130,405    —      130,405  

Accretion of discount on asset retirement obligations

   6,319    —      6,319  

Interest

   93,540    —      93,540  

Other

   40,060    —      40,060  
  

 

 

  

 

 

  

 

 

 
   1,259,039    —      1,259,039  
  

 

 

  

 

 

  

 

 

 

Income from continuing operations before income taxes

   712,032    —      712,032  

Income tax provision

   (251,358  (8,058)(e)   (259,416
  

 

 

  

 

 

  

 

 

 

Income from continuing operations

   460,674    (8,058  452,616  

Income from discontinued operations, net of tax

   (465  —      (465
  

 

 

  

 

 

  

 

 

 

Net income

   460,209    (8,058  452,151  

Net (income) loss attributable to the noncontrolling interest

   (22,283  22,382 (f)   99  
  

 

 

  

 

 

  

 

 

 

Net income attributable to common stockholders

  $437,926   $14,324   $452,250  
  

 

 

  

 

 

  

 

 

 

Basic earnings per share

  $3.24    $3.26  

Diluted earnings per share

  $3.19    $3.20  

Weighted average shares outstanding:

    

Basic

   133,263    3,951 (c)   137,214  

Diluted

   135,762    3,951 (c)   139,713  

The accompanying notes are an integral part of these unaudited pro forma condensed consolidated financial statements.

PIONEER NATURAL RESOURCES COMPANY

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

FOR THE YEAR ENDED DECEMBER 31, 2012

(in thousands, except per share data)

   Pioneer  Pro Forma
Adjustments
  Pro Forma
Pioneer
 

Revenues and other income:

    

Oil and gas

  $2,811,660   $—     $2,811,660  

Interest and other

   28,310    —      28,310  

Derivative gains, net

   330,251    —      330,251  

Gain on disposition of assets, net

   58,087    —      58,087  
  

 

 

  

 

 

  

 

 

 
   3,228,308    —      3,228,308  

Costs and expenses:

    

Oil and gas production

   635,644    —      635,644  

Production and ad valorem taxes

   187,757    —      187,757  

Depletion, depreciation and amortization

   810,191    —      810,191  

Impairment of oil and gas properties

   532,589    —      532,589  

Exploration and abandonments

   206,291    —      206,291  

General and administrative

   248,282    —      248,282  

Accretion of discount on asset retirement obligations

   9,887    —      9,887  

Interest

   204,222    —      204,222  

Other

   113,388    —      113,388  
  

 

 

  

 

 

  

 

 

 
   2,948,251    —      2,948,251  
  

 

 

  

 

 

  

 

 

 

Income from continuing operations before income taxes

   280,057    —      280,057  

Income tax provision

   (92,384  (18,406)(e)   (110,790
  

 

 

  

 

 

  

 

 

 

Income from continuing operations

   187,673    (18,406  169,267  

Income from discontinued operations, net of tax

   55,149    —      55,149  
  

 

 

  

 

 

  

 

 

 

Net income

   242,822    (18,406  224,416  

Net (income) loss attributable to the noncontrolling interest

   (50,537  51,127 (f)   590  
  

 

 

  

 

 

  

 

 

 

Net income attributable to common stockholders

  $192,285   $32,721   $225,006  
  

 

 

  

 

 

  

 

 

 

Basic earnings per share

  $1.54    $1.75  

Diluted earnings per share

  $1.50    $1.70  

Weighted average shares outstanding:

    

Basic

   122,966    3,951 (c)   126,917  

Diluted

   126,320    3,951 (c)   130,271  

The accompanying notes are an integral part of these unaudited pro forma condensed consolidated financial statements.

PIONEER NATURAL RESOURCES COMPANY

NOTES TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Note A. Basis of Presentation

The accompanying unaudited pro forma condensed consolidated financial statements have been prepared to assist in analysis of the financial effects of the merger between Pioneer and Pioneer Southwest. These unaudited pro forma condensed consolidated financial statements are derived in part from, and should be read in conjunction with, Pioneer’s financial statements included in Pioneer’s Annual Report on Form 10-K for the year ended December 31, 2012, and Pioneer’s Quarterly Report on Form 10-Q for the period ended June 30, 2013. The unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 2012, and the six months ended June 30, 2013, have been prepared to give effect to the proposed merger as if it had occurred on January 1, 2012. The unaudited pro forma condensed consolidated balance sheet has been prepared to give effect to the proposed merger as if it had occurred on June 30, 2013. The proposed merger does not affect Pioneer’s reported oil and gas proved reserves as of December 31, 2012, as Pioneer Southwest was consolidated in Pioneer’s reported reserves.

Note B. Pro Forma Adjustments

The following adjustments included in the column under the heading “Pro Forma Adjustments” have been made to the historical consolidated financial statements of Pioneer:

a.To reflect the payment of approximately $4.0 million of estimated transaction costs associated with completing the proposed transaction, including approximately $0.9 million incurred by Pioneer and approximately $3.1 million incurred by Pioneer Southwest.

b.To reflect the impact of the book to tax basis differences, substantially related to proved properties, on the portion of Pioneer Southwest assets and liabilities owned by unitholders other than Pioneer.

c.To reflect 3.95 million shares of Pioneer common stock, par value $0.01, to be issued at the effective time of the merger. Each of the 17.0 million Pioneer Southwest common units not owned by Pioneer USA will be cancelled and converted into the right to receive 0.2325 of a share of Pioneer common stock.

d.To reclassify to additional paid in capital the noncontrolling owners’ interest attributable to the unitholders of Pioneer Southwest other than Pioneer.

e.Represents the income tax effect of pro forma adjustment (f) at Pioneer’s estimated statutory tax rate of 36%.

f.To reclassify to net income attributable to Pioneer common stockholders the net income attributable to unitholders other than Pioneer currently in noncontrolling interest.

Note C. Subsequent Event

In July 2013, Pioneer Southwest declared a cash distribution of $0.52 per common unit for the period from April 1, 2013 to June 30, 2013. The distribution was paid on August 9, 2013 to unitholders of record at the close of business on August 2, 2013. Associated therewith, Pioneer Southwest paid $18.6 million of aggregate distributions.

In August 2013, Pioneer declared a cash dividend of $0.04 per share on Pioneer’s common stock. The dividend is payable October 11, 2013, to stockholders of record at the close of business on September 30, 2013.

Note D. Post-Closing Events

Pioneer plans to pay off the Pioneer Southwest credit facility shortly following the closing of the merger, and expects to merge Pioneer Southwest GP, Pioneer Southwest and their subsidiaries into Pioneer USA after the closing of the merger.

ANNEXAnnex A

EXECUTION VERSION

 

 

AGREEMENT AND PLAN OF MERGER

by and among

PIONEER NATURAL RESOURCES COMPANY,

PIONEER NATURAL RESOURCES USA,PEARL FIRST MERGER SUB INC.,

PNR ACQUISITION COMPANY,PEARL SECOND MERGER SUB LLC,

PEARL OPCO MERGER SUB LLC,

PARSLEY ENERGY, INC.

and

PIONEER NATURAL RESOURCES GPPARSLEY ENERGY, LLC

PIONEER SOUTHWEST ENERGY PARTNERS L.P.

Dated as of August 9, 2013October 20, 2020

 

 


TABLE OF CONTENTS

 

Page

ARTICLE I CERTAIN DEFINITIONSTHE MERGERS

A-2

Section 1.1

The MergersA-2

Section 1.2

ClosingA-3

Section 1.3

Effects of the MergersA-3

Section 1.4

Organizational Documents   A-4 

Section 1.11.5

 

Certain Definitions

Directors
   A-4 

Section 1.21.6

 

Interpretation

Officers
   A-10A-4

Section 1.7

Parent Board CompositionA-4 

ARTICLE II EFFECT ON THE MERGER; EFFECTSCAPITAL STOCK AND OTHER EQUITY INTERESTS OF THE MERGERCONSTITUENT ENTITIES; EXCHANGE OF CERTIFICATES

A-5

Section 2.1

Conversion of Company Capital StockA-5

Section 2.2

Conversion of Opco LLC Units and Cancellation of Company Class B Common StockA-6

Section 2.3

Treatment of Company Equity-Based AwardsA-7

Section 2.4

Exchange and Payment for Company Common StockA-8

Section 2.5

Withholding Rights   A-11 

Section 2.12.6

 

The Merger

A-11

Section 2.2

Closing

Dissenting Shares
   A-11 

ARTICLE III MERGER CONSIDERATION; EXCHANGE PROCEDURESREPRESENTATIONS AND WARRANTIES OF THE COMPANY PARTIES

   A-12 

Section 3.1

 

Merger Consideration

Organization, Standing and Power
   A-12 

Section 3.2

 

Rights As Unitholders; Unit Transfers

Capital Stock
   A-13A-12 

Section 3.3

 

Exchange of Certificates

Subsidiaries
   A-13A-14 

Section 3.4

 

Anti-Dilution Provisions

Authority
   A-16A-14 

Section 3.5

No Conflict; Consents and ApprovalsA-15

ARTICLE IV ACTIONS PENDING MERGERSection 3.6

SEC Reports; Financial Statements   A-16 

Section 4.13.7

 

Conduct of Business by MLP and MLP GP

No Undisclosed Liabilities
   A-16A-17 

Section 4.23.8

 Certain InformationA-17

ConductSection 3.9

Absence of Business by PNR and PNR USA

Certain Changes or Events
   A-18 

Section 3.10

ARTICLE V REPRESENTATIONS AND WARRANTIES

Litigation
   A-19A-18 

Section 5.13.11

 

Representations and Warranties of MLP Parties

Compliance with Laws
   A-19A-18 

Section 5.23.12

 Benefit PlansA-18

Representations and Warranties of PNR PartiesSection 3.13

Labor MattersA-20

Section 3.14

Environmental MattersA-21

Section 3.15

Taxes   A-22 

Section 3.16

ContractsA-23

ARTICLE VI COVENANTSSection 3.17

Insurance   A-25 

Section 6.13.18

 

Efforts

A-25

Section 6.2

Unitholder Approval

A-25

Section 6.3

Registration Statement

Properties
   A-26 

Section 6.43.19

 Intellectual PropertyA-26

Press ReleasesSection 3.20

State Takeover Statutes   A-27 

Section 6.53.21

 

Access; Information

No Rights Plan
   A-27 

Section 6.63.22

 Related Party TransactionsA-27

Acquisition ProposalsSection 3.23

Certain PaymentsA-27

Section 3.24

Rights-of-WayA-27

Section 3.25

Oil and Gas Matters   A-28 

Section 6.73.26

 

Takeover Laws

A-28

Section 6.8

No Rights Triggered

Derivative Transactions
   A-29 

Section 6.93.27

 

New Common Stock Listed

Regulatory Matters
   A-29A-30 

Section 6.103.28

 

Third-Party Approvals

Brokers
   A-29A-30

A-i


TABLE OF CONTENTS

(Continued)

Page 

Section 6.113.29

 

Indemnification; Directors’ and Officers’ Insurance

Opinions of Financial Advisors
   A-29A-30 

Section 6.123.30

 

Notification of Certain Matters

No Other Representations or Warranties
   A-31A-30 

Section 6.13

Rule 16b-3

A-31

Section 6.14

MLP GP Conflicts Committee

A-31

Section 6.15

Conversion of Equity AwardsARTICLE IV REPRESENTATIONS AND WARRANTIES OF THE PARENT PARTIES

   A-31 

ARTICLE VII CONDITIONS TO CONSUMMATION OF THE MERGERSection 4.1

Organization, Standing and PowerA-31

Section 4.2

Capital Stock   A-32 

Section 7.14.3

 

Unitholder Approval

A-32

Section 7.2

Governmental Approvals

A-32

Section 7.3

No Injunction

Subsidiaries
   A-33 

Section 7.44.4

 

Representations, Warranties and Covenants of the PNR Parties

Authority
   A-33 

Section 7.54.5

 

Representations, WarrantiesNo Conflict; Consents and Covenants of the MLP Parties

A-33

Section 7.6

Effective Registration Statement

Approvals
   A-34 

Section 7.74.6

 

NYSE Listing

SEC Reports; Financial Statements
   A-34 

Section 7.84.7

 

No Material Adverse EffectUndisclosed Liabilities

A-36

Section 4.8

Certain InformationA-36

Section 4.9

Absence of Certain Changes or EventsA-36

Section 4.10

LitigationA-36

Section 4.11

Compliance with LawsA-37

Section 4.12

Benefit PlansA-37

Section 4.13

Labor MattersA-38

Section 4.14

Environmental MattersA-39

Section 4.15

TaxesA-40

Section 4.16

ContractsA-41

Section 4.17

InsuranceA-42

Section 4.18

PropertiesA-42

Section 4.19

Intellectual PropertyA-43

Section 4.20

State Takeover LawsA-43

Section 4.21

No Rights PlanA-43

Section 4.22

Related Party TransactionsA-43

Section 4.23

Certain PaymentsA-44

Section 4.24

Rights-of-WayA-44

Section 4.25

Oil and Gas MattersA-44

Section 4.26

Derivative TransactionsA-46

Section 4.27

Regulatory MattersA-46

Section 4.28

BrokersA_46

Section 4.29

Opinions of Financial AdvisorsA-46

Section 4.30

Merger SubsA-47

Section 4.31

Ownership of Company StockA-47

Section 4.32

No Other Representations or WarrantiesA-47

ARTICLE V COVENANTS

   A-34A-48

Section 5.1

Conduct of BusinessA-48

Section 5.2

No Solicitation; RecommendationsA-53

Section 5.3

Preparation of Form S-4 and Joint Proxy Statement; Stockholders’ MeetingsA-57

Section 5.4

Access to Information; ConfidentialityA-60

Section 5.5

Reasonable Best EffortsA-60

Section 5.6

Takeover LawsA-61

Section 5.7

Notification of Certain MattersA-61

Section 5.8

Indemnification, Exculpation and InsuranceA-61

Section 5.9

Certain NYSE and SEC MattersA-62

Section 5.10

Stockholder LitigationA-62

A-ii


TABLE OF CONTENTS

(Continued)

Page

Section 5.11

Certain Tax MattersA-63

Section 5.12

DividendsA-63

Section 5.13

Public AnnouncementsA-63

Section 5.14

Section 16 MattersA-61

Section 5.15

Employee and Employment Benefit MattersA-64

Section 5.16

Delivery of Written ConsentsA-65

Section 5.17

Obligations of Parent Parties and Company PartiesA-65

ARTICLE VI CONDITIONS PRECEDENT

A-66

Section 6.1

Conditions to the Parties’ Obligation to Effect the MergersA-66

Section 6.2

Conditions to the Obligations of the Parent Parties to Effect the MergersA-66

Section 6.3

Conditions to the Obligations of the Company Parties to Effect the MergersA-67

Section 6.4

Frustration of Closing ConditionsA-67

ARTICLE VII TERMINATION, AMENDMENT AND WAIVER

A-67

Section 7.1

TerminationA-67

Section 7.2

Effect of TerminationA-69

Section 7.3

Fees and ExpensesA-69

Section 7.4

Amendment or SupplementA-71

Section 7.5

Extension of Time; WaiverA-71 

ARTICLE VIII TERMINATIONGENERAL PROVISIONS

   A-34A-71 

Section 8.1

 

Termination

Nonsurvival of Representations and Warranties
   A-34A-71 

Section 8.2

 

Costs and Expenses

Notices
   A-35A-72 

Section 8.3

 

Effect of Termination

Certain Definitions
   A-35A-72

Section 8.4

InterpretationA-77

Section 8.5

Entire AgreementA-77

Section 8.6

No Third Party BeneficiariesA-77

Section 8.7

Governing LawA-78

Section 8.8

Submission to JurisdictionA-78

Section 8.9

Assignment; SuccessorsA-78

Section 8.10

Specific PerformanceA-79

Section 8.11

CurrencyA-79

Section 8.12

SeverabilityA-79

Section 8.13

No Other Parties to this AgreementA-79

Section 8.14

Waiver of Jury TrialA-79

Section 8.15

CounterpartsA-80

Section 8.16

Facsimile or .pdf SignatureA-80

Section 8.17

No Presumption Against Drafting PartyA-80 

Exhibit AForm of TRA Amendment
Exhibit BOpco Schedule
Exhibit CForm of Company Officer’s Certificate
Exhibit DForm of Parent Officer’s Certificate

A-iii


INDEX OF DEFINED TERMS

ARTICLE IX MISCELLANEOUS

A-36

Section 9.1Definition

  

Waiver; Amendment; Approvals and ConsentsLocation

409A Authorities  A-363.12(e)
Acceptable Confidentiality Agreement5.2(a)
Acquisition Proposal5.2(j)(i)
Action3.10
Adverse Recommendation Change5.2(b)(i)
Affiliate8.3(a)
AgreementPreamble
Alternative Acquisition Agreement5.2(b)(ii)
Book-Entry Shares2.4(b)
Business Day8.3(b)
Certificate2.4(b)
Certificates of Merger1.1(c)
Closing1.2
Closing Date1.2
COBRA3.12(c)(vi)
CodeRecitals
CompanyPreamble
Company 401(k) Plan5.15(d)
Company Affiliate8.13
Company Affiliate Transaction3.22
Company Award Agreement8.3(c)
Company BoardRecitals
Company Bylaws3.1(b)
Company Charter3.1(b)
Company Class A Common StockRecitals
Company Class B Common StockRecitals
Company Covered Individual5.1(a)(xvii)
Company Disclosure LetterArticle III
Company Employee5.15(a)
Company Expenses7.3(d)(ii)
Company Financial Advisors3.28
Company Independent Petroleum Engineers3.25(a)
Company Intellectual Property3.19
Company Material Adverse Effect8.3(d)
Company Material Contract3.16(a)
Company Merger Consideration2.1(a)(i)
Company Officer’s Tax Certificate5.11(c)
Company Organizational Documents3.1(b)
Company PartiesArticle III
Company Performance Awards2.3(a)(i)
Company Plans3.12(b)
Company Preferred Stock3.2(a)
Company Property3.18(a)
Company PRSU Award8.3(e)
Company RecommendationRecitals
Company Reserve Report Letter3.25(a)
Company Restricted Stock Award8.3(f)
Company RSU Award8.3(g)
Company SEC Documents3.6(a)

A-i


INDEX OF DEFINED TERMS

(Continued)

Section 9.2Definition

  

CounterpartsLocation

Company Stock Awards  A-363.2(e)
Company Stockholder Approval3.4(a)
Company StockholdersRecitals
Company Stockholders Meeting5.3(a)
Company Termination Fee8.3(h)
Confidentiality Agreement8.3(i)
Contract3.5(a)
control8.3(j)
Controlled Group8.3(k)
COPAS8.3(l)
Creditors’ Rights3.4(a)
D&O Award Holders3.2(e)
D&O Insurance5.8(b)
Delaware Secretary of State1.1(a)
Derivative Transaction8.3(m)
DGCL1.1(a)
Director Award2.3(a)(i)
Dissenting Shares2.6
Divestiture Action5.5(b)
DLLCA1.1(b)
EBITDA8.3(n)
Effective Time1.1(a)
Eligible Shares2.1(a)(i)
Environment3.14(e)(i)
Environmental Claim3.14(e)(ii)
Environmental Law3.14(e)(iii)
Environmental Permits3.14(a)
ERISA3.12(b)
Exchange Act3.5(b)
Exchange Agent2.4(a)
Exchange Fund2.4(a)
Exchange Ratio2.1(a)(i)
Excluded Opco LLC Units2.2(a)(ii)
Excluded Shares2.1(a)(ii)
FERC3.27(b)
Filed Company SEC DocumentsArticle III
Filed Parent SEC DocumentsArticle IV
First Certificate of Merger1.1(a)
First Company MergerRecitals
Form S-45.3(a)
Fraud8.3(o)
GAAP3.6(b)
Governmental Entity3.5(b)
Hazardous Materials3.14(e)(iv)
HSR Act3.5(b)
Hydrocarbons8.3(p)
Indebtedness8.3(q)
Indemnified Persons5.8(a)

A-ii


INDEX OF DEFINED TERMS

(Continued)

Section 9.3Definition

  

Governing LawLocation

Integrated Mergers  A-36Recitals
Intellectual Property8.3(r)
Intervening Event5.2(j)(iii)
IRS3.12(b)
Joint Proxy Statement5.3(a)
knowledge8.3(s)
Law3.5(a)
Liens3.2(b)
Material Adverse Effect8.3(t)
Measurement Date3.2(a)
Merger Consideration2.2(a)(i)
Merger Sub Inc.Preamble
Merger Sub LLCPreamble
MergersRecitals
Natural Gas Act3.27(b)
New Board Designee1.7
Nonqualified Deferred Compensation Plan3.12(e)
Oil and Gas Leases8.3(u)
Oil and Gas Properties8.3(v)
Opco Certificate of Merger1.1(b)
Opco Exchange Ratio2.2(a)(i)
Opco LLCPreamble
Opco LLC Agreement1.4(a)
Opco LLC Stapled Unit2.2(a)(i)
Opco LLC UnitRecitals
Opco MergerRecitals
Opco Merger Consideration2.2(a)(i)
Opco Merger Sub LLCPreamble
Opco Schedule2.2(a)(i)
Opco Surviving CompanyRecitals
Opco Unitholder ApprovalRecitals
Outside Date7.1(b)(i)
ParentPreamble
Parent 401(k) Plan5.15(d)
Parent Affiliate8.13
Parent Affiliate Transaction4.22
Parent BoardRecitals
Parent Bylaws4.1(b)
Parent Charter4.1(b)
Parent Common StockRecitals
Parent Convertible Notes8.3(w)
Parent Disclosure LetterArticle IV
Parent Expenses7.3(d)(i)
Parent Financial Advisors4.28
Parent Independent Petroleum Engineers4.25(a)
Parent Intellectual Property4.19
Parent Material Adverse Effect8.3(y)
Parent Material Contract4.16(a)

A-iii


INDEX OF DEFINED TERMS

(Continued)

Section 9.4Definition

  

ConfidentialityLocation

Parent Officer’s Tax Certificate  A-365.11(c)
Parent Organizational Documents4.1(b)
Parent PartiesArticle IV
Parent Plans4.12(b)
Parent Preferred Stock4.2(a)
Parent Property4.18(a)
Parent PRSU Award8.3(y)
Parent RecommendationRecitals
Parent Reserve Report Letter4.25(a)
Parent Restricted Stock Award8.3(z)
Parent RSU Award8.3(aa)
Parent SEC Documents4.6(a)
Parent Stock Option8.3(bb)
Parent Stockholder Approval4.4(a)
Parent StockholdersRecitals
Parent Stockholders Meeting5.3(a)
Parent Termination Fee8.3(cc)
PartiesPreamble
PBGC3.12(c)(iv)
Pension Plan3.12(a)
Permits3.11
Permitted Lien8.3(dd)
Person8.3(ee)
PPACA3.12(c)(vi)
Production Burdens8.3(ff)
Regulatory Material Adverse Effect5.5(b)
Related Party8.3(gg)
Release3.14(e)(v)
Remaining Company Plan Shares2.3(c)
Representative8.3(hh)
Rights-of-Way3.24
Sarbanes-Oxley Act3.6(a)
SEC3.6(a)
Second Certificate of Merger1.1(c)
Second Company MergerRecitals
Second Company Merger Effective Time1.1(c)
Securities Act3.5(b)
Stock IssuanceRecitals
Subsidiary8.3(ii)
Superior Proposal5.2(j)(ii)
Surviving CompanyRecitals
Surviving CorporationRecitals
Tail Period5.8(b)
Takeover Laws3.20
Tax Receivable AgreementRecitals
Tax Return8.3(jj)
Taxes8.3(kk)
Terminable Breach7.1(b)(v)

A-iv


INDEX OF DEFINED TERMS

(Continued)

Section 9.5Definition

  

NoticesLocation

TRA Amendment  A-36Recitals

Section 9.6

Transactions
  

Entire Understanding; No Third-Party Beneficiaries

Recitals
Voting Agreements  A-37Recitals

Section 9.7

WARN Act
  

Severability

3.13(b)
Wells  A-378.3(ll)

Section 9.8

Willful and Material Breach
  

Jurisdiction

A-37

Section 9.9

Waiver of Jury Trial

A-38

Section 9.10

No Recourse

A-38

Section 9.11

Specific Performance

A-38

Section 9.12

Survival

A-387.2(b)

A-v


AGREEMENT AND PLAN OF MERGER

This AGREEMENT AND PLAN OF MERGER (this “Agreement”), dated as of August 9, 2013 (this “Agreement”),October 20, 2020, is entered into by and among Pioneer Natural Resources Company, a Delaware corporation (“PNRParent”), Pioneer Natural Resources USA,Pearl First Merger Sub Inc., a Delaware corporation and a wholly-owned subsidiarySubsidiary of PNRParent (“PNR USAMerger Sub Inc.”), PNR Acquisition Company,Pearl Second Merger Sub LLC, a Delaware limited liability company and a wholly-owned subsidiarySubsidiary of PNRParent (“MergerCoMerger Sub LLC”), Pioneer Southwest Energy Partners, L.P., a Delaware limited partnership (“MLP”), and Pioneer Natural Resources GPPearl Opco Merger Sub LLC, a Delaware limited liability company and the general partnera wholly-owned Subsidiary of MLPParent (“Opco Merger Sub LLC”), Parsley Energy, Inc., a Delaware corporation (the “Company”), and wholly-owned subsidiary of PNR USAParsley Energy, LLC, a Delaware limited liability company (“MLP GPOpco LLC”). Capitalized terms used but not defined haveEach of Parent, Merger Sub Inc., Merger Sub LLC, Opco Merger Sub LLC, the meanings assignedCompany and Opco LLC are referred to such terms in Article I hereof.herein individually as a “Party” and collectively as the “Parties”.

WITNESSETH:RECITALS

WHEREAS, the MLP GP Conflicts CommitteeParties intend to effect (i) at the Effective Time, (A) the merger (the “First Company Merger”) of Merger Sub Inc. with and into the Company, with the Company continuing as the surviving entity (the “Surviving Corporation”), on the terms and subject to the conditions set forth herein; and (B) simultaneously with the First Company Merger, the merger (the “Opco Merger”) of Opco Merger Sub LLC with and into Opco LLC, with Opco LLC continuing as the surviving entity (the “Opco Surviving Company”); and (ii) immediately following the First Company Merger, the merger (the “Second Company Merger” and, together with the First Company Merger, the “Integrated Mergers,” and the MLP GPIntegrated Mergers together with the Opco Merger, the “Mergers”) of the Surviving Corporation with and into Merger Sub LLC, with Merger Sub LLC continuing as the surviving entity (the “Surviving Company”), on the terms and subject to the conditions set forth herein;

WHEREAS, the Board haveof Directors of Parent (the “Parent Board”), at a meeting duly called and held by unanimous vote, has (i) determined that the Mergers and the other transactions contemplated by this Agreement (collectively, the “Transactions”) are in the best interests of, and are advisable to, Parent and its stockholders (the “Parent Stockholders”), (ii) approved, adopted and declared advisable this Agreement and the transactions contemplated hereby, includingTransactions, (iii) directed that the issuance of the shares of common stock, par value $0.01 per share, of Parent (“Parent Common Stock”) constituting the Merger Consideration and other shares of Parent Common Stock to be issued in the Mergers or reserved for issuance in connection with such Mergers, in each case, as provided for in Article II(the “Stock Issuance”) be submitted to the Parent Stockholders for approval and (iv) resolved to recommend that the Parent Stockholders approve the Stock Issuance at a duly held meeting of such stockholders for such purpose (the “Parent Recommendation”);

WHEREAS, the Board of Directors of Merger Sub Inc. has approved, adopted and declared advisable this Agreement and the Transactions (including the First Company Merger);

WHEREAS, Parent (i) as the sole stockholder of Merger Sub Inc., will adopt this Agreement promptly following its execution; (ii) as the sole member of Opco Merger Sub LLC, has adopted this Agreement concurrently with its execution; and (iii) as the sole member of Merger Sub LLC, has adopted this Agreement concurrently with its execution;

WHEREAS, the Board of Directors of the Company (the “Company Board”), at a meeting duly called and determinedheld by unanimous vote, has (i) declared that this Agreement and the Merger Transactions pursuant to which MLP will, subject to(including the terms and conditions set forth herein, merge with MergerCo, with MLP as the surviving entity (the “Merger”), such that, following the Merger, MLP GP will remain the sole general partner of MLP, and PNR USA will become the sole limited partner of MLP,Integrated Mergers) are fair and reasonable to, and in the best interests of, the MLP Unaffiliated UnitholdersCompany and MLP,its stockholders (the “Company Stockholders”), (ii) approved and the MLP GP Board caused MLP GP to approvedeclared advisable this Agreement and the Merger Transactions;

WHEREAS, PNR, asTransactions (including the sole member of MergerCo, has approvedIntegrated Mergers) and (iii) recommended that the Company Stockholders approve and adopt this Agreement and the Merger Transactions;Transactions (including the Integrated Mergers) at a duly held meeting of such stockholders for such purpose (the “Company Recommendation”);

WHEREAS, the Board of Directors of the Company, on behalf of the Company, in its capacity as the managing member of Opco LLC, has (i) determined that this Agreement and the Transactions (including the Opco Merger) are fair to, and in the best interests of, Opco LLC and its members and (ii) approved and declared advisable this Agreement and the Transactions (including the Opco Merger);

WHEREAS, PNR USA is the sole memberCompany, as the holder of MLP GP and the owner of record of 18,721,200more than a majority of the issued and outstanding MLP Common Units;Opco LLC Units, has adopted this Agreement concurrently with its execution (the “Opco Unitholder Approval”);

WHEREAS, as a condition and inducement to MLP and MLP GP entering into this Agreement, concurrently with the execution and delivery of this Agreement, certain Company Stockholders have entered into voting and support agreements (collectively, the PNR Parties andVoting Agreements”), dated as of the MLP Parties are entering into the Voting Agreement,date hereof, with Parent, pursuant to which, among other things, the PNR Partiessuch Company Stockholders have agreed subject to the terms and conditions set forth therein, to vote allsuch Company Stockholders’ shares of Class A common stock, par value $0.01 per share, of the MLPCompany (“Company Class A Common Stock”), Class B common stock, par value $0.01 per share, of the Company (the “Company Class B Common Stock”) and/or Units held by them(as defined in the Opco LLC Agreement (as defined herein)) of Opco LLC (each, an “Opco LLC Unit”), as applicable, in favor of the approvaladoption of this Agreement;

WHEREAS, concurrently with the execution and delivery of this Agreement, certain parties to the Tax Receivable Agreement, dated as of May 29, 2014, among the Company, certain members of Opco LLC and Bryan Sheffield (the “Tax Receivable Agreement”) are entering into an amendment thereto pursuant to Section 7.6 thereof, with such amendment substantially in the form attached hereto as Exhibit A (the “TRA Amendment”), which provides for the payment in full of the Early Termination Payment (as such term is defined in the Tax Receivable Agreement) on the Closing Date immediately after the Effective Time, on the terms set forth therein, and the Merger Transactions;termination of the Tax Receivable Agreement following such payment;

WHEREAS, for U.S. federal income tax purposes, (i) it is intended that the IntegratedMergers, taken together, constitute an integrated plan and qualify as a “reorganization” within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended (the “Code”), and (ii) this Agreement is intended to constitute, and is hereby adopted as, a “plan of reorganization” within the meaning of Treasury Regulations Sections 1.368-2(g) and 1.368-3(a); and

WHEREAS, the parties heretoParties desire to make certain representations, warranties, covenants and agreements in connection with the MergerMergers and also to prescribe variouscertain conditions to the Merger.Mergers as specified herein;

NOW, THEREFORE, in consideration of the premises, and of the respective representations, warranties, covenants agreements and conditionsagreements contained herein, and intending to be legally bound hereby, the parties heretoParties hereby agree as follows:

ARTICLE I

CERTAIN DEFINITIONSTHE MERGERS

Section 1.1Certain DefinitionsThe Mergers. As used

(a) Upon the terms and subject to the conditions set forth in this Agreement the following terms shall have the meanings set forth below:

Acquisition Proposal” shall mean any proposal or offer from or by any Person other than PNR, PNR USA, MLP GP, MergerCo or their respective Subsidiaries relating to: (a) any direct or indirect acquisition of (i) more than 20%and in value of the assets of MLP and its Subsidiaries, taken as a whole, (ii) more than 20% of the outstanding MLP Common Units or (iii) assets that generate more than 20% of the monthly cash flow, net revenues or net income of MLP and its Subsidiaries, taken as a whole; (b) any tender offer or exchange offer that,

if consummated, would result in any such Person becoming the beneficial owner (within the meaning of Rule 13d-3 under the Exchange Act) of more than 20% of the outstanding MLP Common Units; or (c) any merger, consolidation, business combination, recapitalization, liquidation, dissolution or similar transaction involving MLP, other than the Merger.

Action” shall have the meaning set forth in Section 6.11(a).

Affiliate” shall have the meaning set forth in Rule 405 of the Securities Act, unless otherwise expressly stated herein;provided that for purposes of this Agreement, PNR, PNR USA, MergerCo and their respective Subsidiaries (excluding MLP, MLP GP and their respective Subsidiaries) shall not be Affiliates of MLP, MLP GP and their respective Subsidiaries, unless otherwise expressly stated herein.

Agreement” shall have the meaning set forth in the introductory paragraph to this Agreement.

Book-Entry Units” shall have the meaning set forth in Section 3.2(a).

Business Day” shall mean any day which is not a Saturday, Sunday or other day on which banks are authorized or required to be closed in the City of New York, New York.

Certificate” shall have the meaning set forth in Section 3.2(a).

Certificate of Merger” shall have the meaning set forth in Section 2.1(b).

Claim” shall have the meaning set forth in Section 6.11(a).

Closing” shall have the meaning set forth in Section 2.2.

Closing Date” shall have the meaning set forth in Section 2.2.

Code” shall mean the Internal Revenue Code of 1986, as amended.

Compensation and Benefit Plan” shall mean any bonus, vacation, deferred compensation, pension, retirement, profit-sharing, thrift, savings, employee unit ownership, stock or unit bonus, stock or unit purchase, restricted or phantom stock or unit or stock or unit option plan, any employment or severance contract, any medical, dental, disability, health or life insurance plan, any other employee benefit or fringe benefit plan, contract or arrangement and any applicable “change of control” or similar provision in any plan, contract or arrangement maintained or contributed to for the benefit of officers, former officers, employees, former employees, directors, former directors, or the beneficiaries of any of the foregoing, including any “employee benefit plan” as defined in ERISA Section 3(3).

Confidentiality Agreement” shall mean a confidentiality agreement of the nature generally used in circumstances similar to those contemplated in Section 6.6 hereof, as determined by the MLP GP Conflicts Committee in its business judgment;provided,however, that such Confidentiality Agreement shall (a) have a term of not less than two years, and (b) provide that all non-public information pertaining to MLP and its Subsidiaries be protected as confidential information thereunder, subject to customary exceptions;provided further, that MLP may amend or waive the terms of such Confidentiality Agreement in its discretion, except that PNR shall have the right to approve or consent to any amendment or waiver (i) of the two-year or more term of the Confidentiality Agreement, or (ii) that would have the effect of causing any non-public information pertaining to MLP and its Subsidiaries that is protected as confidential information under the Confidentiality Agreement not to be protected as confidential information under the Confidentiality Agreement.

DGCL” shall meanaccordance with the General Corporation Law of the State of Delaware.

Delaware (the DLLCADGCL), at the Effective Time, Merger Sub Inc. shall meanbe merged with and into the Delaware Limited LiabilityCompany. Following the First Company Act.

DRULPAMerger, the separate corporate existence of Merger Sub Inc. shall mean the Delaware Revised Uniform Limited Partnership Act.

Effective Time” shall have the meaning set forth in Section 2.1(b).

ERISA” shall mean the Employee Retirement Income Security Act of 1974, as amended.

Exchange Act” shall mean the Securities Exchange Act of 1934, as amended,cease, and the rules and regulations promulgated thereunder.

“Exchange AgentCompany shall have the meaning set forth in Section 3.3(a).

Exchange Fund” shall have the meaning set forth in Section 3.3(a).

Exchange Ratio” shall have the meaning set forth in Section 3.1(c).

Expenses” shall have the meaning set forth in Section 8.2(f).

Governmental Authority” shall mean any national, state, local, county, parish or municipal government, domestic or foreign, any agency, board, bureau, commission, court, tribunal, subdivision, department or other governmental or regulatory authority or instrumentality, or any arbitrator, in each case that has jurisdiction over PNR or MLP,continue as the case may be, or anySurviving Corporation and a wholly-owned Subsidiary of their respective Subsidiaries or any of their or their respective Subsidiaries’ properties or assets.

Indebtedness” of any Person shall mean, without duplication, (a) all obligations of such Person for borrowed money; (b) all obligations of such Person evidenced by bonds, debentures, notes or similar instruments; (c) all obligations of such Person in respect ofParent. Upon the deferred purchase price of property or services (other than customary payment terms taken in the ordinary course of business); (d) all Indebtedness of others secured by (or for which the holder of such Indebtedness has an existing right, contingent or otherwise, to be secured by) any Lien on property owned or acquired by such Person, whether or not the Indebtedness secured thereby has been assumed; limited, however,and subject to the lesser of (1) the amount of its liability or (2) the book value of such property; (e) all obligations of such Person to pay rent or other amounts under any lease of (or other arrangement conveying the right to use) real or personal property, or a combination thereof, which obligations are required to be classified and accounted for as capital leases on a balance sheet of such Person under U.S. generally accepted accounting principles that are applicable to the circumstances as of the date of this Agreement; (f) all obligations, contingent or otherwise, of such Person as an account party in respect of letters of credit; (g) all obligations, contingent or otherwise, of such Person in respect of bankers’ acceptances; (h) the amount of deferred revenue attributed to any forward sale of production for which such Person has received payment in advance other than on ordinary trade terms; (i) the undischarged balance of any production payment created by such Person or for the creation of which such Person directly or indirectly received payment; and (j) indebtedness of others as described in clauses (a) through (i) above in any manner guaranteed by such Person or for which it is or may become contingently liable.

Indemnification Expenses” shall have the meaning set forth in Section 6.11(a).

Indemnified Parties” shall have the meaning set forth in Section 6.11(a).

Indemnitees” shall have the meaning set forth in the MLP Partnership Agreement.

Knowledge” shall mean, with respect to any party, the actual knowledge of the directors or executive officers of such party or such party’s general partner.

Law” shall mean any law, rule, regulation, directive, ordinance, code, governmental determination, judgment, order, treaty, convention, governmental certification requirement or other legally enforceable requirement, U.S. or non-U.S., of any Governmental Authority.

Lien” shall mean any mortgage, lien, charge, restriction (including restrictions on transfer), pledge, security interest, option, right of first offer or refusal, preemptive right, lease or sublease, claim, right of any third party, covenant, right of way, easement, encroachment or encumbrance.

Letter of Transmittal” shall have the meaning set forth in Section 3.3(b).

Material Adverse Effect” shall mean, with respect to MLP or PNR, respectively, any state of facts, change, development, condition, occurrence or other effect that (a) is or could reasonably be expected to be material and adverse to the financial condition, assets, properties, business, operations, results of operations or prospects of MLP and its Subsidiaries, taken as a whole, or PNR and its Subsidiaries, taken as a whole, respectively, or (b) materially impairs or delays, or could reasonably be expected to materially impair or delay, the ability of the MLP Parties or the PNR Parties, respectively, to perform their respective obligations under this Agreement or to consummate the Merger and the other Merger Transactions;provided,however, that Material Adverse Effect shall not include any (i) changes generally affecting the economy in the United States of America, (ii) changes in oil and gas prices, including changes in price differentials, (iii) changes in general economic conditions in the oil and gas exploration and production industry, (iv) changes in Law, (v) earthquakes, hurricanes, floods or other natural disasters, except if the state of facts, change, development, condition, occurrence or other effect described in clauses (i), (ii), (iii), (iv), and (v), to the extent, and only to the extent, relative to other participants of similar size in the oil and gas exploration and production industry generally, disproportionately affects the financial condition, assets, properties, business, results of operations or prospects of MLP and its Subsidiaries, taken as a whole, or PNR and its Subsidiaries, taken as a whole, respectively; (vi) changes resulting from the announcementprovisions of this Agreement, or (vii) changes inas soon as practicable on the market price or trading volumeClosing Date, the applicable Parties shall file a certificate of MLP Common Units or shares of PNR Common Stock, respectively (except that the underlying causes of any such changes may be considered in determining whether a Material Adverse Effect has occurred).

merger (the Merger” shall have the meaning set forth in the recitals to this Agreement.

Merger Consideration” shall have the meaning set forth in Section 3.1(c).

MergerCo” shall have the meaning set forth in the introductory paragraph to this Agreement.

MergerCoFirst Certificate of FormationMerger shall mean the certificate of formation of MergerCo as filed with the Secretary of State of Delaware on August 6, 2013.

MergerCo LLC Agreement” shall mean the Limited Liability Company Agreement of MergerCo, dated as of August 6, 2013.

Merger Transactions” shall have the meaning set forth in the recitals to this Agreement.

MLP” shall have the meaning set forth in the introductory paragraph to this Agreement.

MLP Affiliated Unitholders” means PNR, MLP GP, PNR USA and their Affiliates.

MLP Certificate of Limited Partnership” means the certificate of limited partnership of MLP as filed) with the Secretary of State of the State of Delaware (the “Delaware Secretary of State”), executed in accordance with the relevant provisions of the DGCL in connection with effecting the First Company Merger. The First Company Merger shall become effective at such time on June 19, 2007.the Closing Date as the Parties shall agree in writing and shall specify in the First Certificate of Merger (the time the First Company Merger becomes effective being the “Effective Time”).

MLP Change in Recommendation” shall have

(b) Upon the meaningterms and subject to the conditions set forth in Section 6.2(a).

MLP Common Units” shall mean the common units representing limited partner interests of MLP having the rightsthis Agreement and obligations specified with respect to “Common Units” as set forth in the MLP Partnership Agreement.

MLP GP” shall have the meaning set forth in the introductory paragraph to this Agreement.

MLP GP Board” shall mean the board of directors of MLP GP.

MLP GP Board Approval” shall have the meaning set forth in Section 5.1(d)(ii).

MLP GP Certificate of Formation” shall mean the certificate of formation of MLP GP as filedaccordance with the Secretary of StateLimited Liability Company Act of the State of Delaware on June 19, 2007.

(the MLP GP Conflicts CommitteeDLLCA shall mean), at the Conflicts Committee of the MLP GP Board, as such Conflicts Committee is defined in the MLP Partnership Agreement.

MLP GP Conflicts Committee Approval” shall have the meaning set forth in Section 5.1(d)(ii).

MLP GP LLC Agreement” shall mean the Amended and Restated Limited Liability Company Agreement of MLP GP, dated as of April 28, 2008, as amended from time to time.

MLP LTIP” shall mean the Pioneer Southwest Energy Partners L.P. 2008 Long Term Incentive Plan, as amended from time to time.

MLP Material Contract” shall have the meaning set forth in Section 4.1(g).

MLP Meeting” shall have the meaning set forth in Section 5.1(d)(ii).

MLP Parties” shall mean MLP GP and MLP.

MLP Partnership Agreement” shall mean the First Amended and Restated Agreement of Limited Partnership of MLP, dated as of May 6, 2008, as amended from time to time.

MLP Phantom Units” shall have the meaning set forth in Section 3.1(e)(i).

MLP Recommendation” shall have the meaning set forth in Section 6.2(a).

MLP SEC Documents” shall have the meaning set forth in Section 5.1.

MLP Unaffiliated Unitholders” shall mean the MLP Unitholders excluding the MLP Affiliated Unitholders.

MLP Unitholder Approval” shall have the meaning set forth in Section 7.1.

MLP Unitholders” shall mean the holders of outstanding MLP Common Units.

New Common Stock” shall have the meaning set forth in Section 3.1(c).

New Common Stock Issuance” shall mean the issuance of shares of PNR Common Stock as part of the Merger Consideration pursuant to this Agreement.

Notice of Proposed Recommendation Change” shall have the meaning set forth in Section 6.2(b).

NYSE” shall mean the New York Stock Exchange.

Other Parties” shall mean, with respect to the MLP Parties, the PNR Parties, and with respect to the PNR Parties, the MLP Parties.

Person” or “person” shall mean any individual, corporation, limited liability company, limited or general partnership, joint venture, association, joint stock company, trust, unincorporated organization, Governmental Authority or any group comprised of two or more of the foregoing.

PNR” shall have the meaning set forth in the introductory paragraph to this Agreement.

PNR Certificate of Incorporation” shall mean the certificate of incorporation of PNR as filedEffective Time, simultaneously with the Secretary of State of the State of Delaware on June 26, 1997, as amended.

PNR Common Stock” shall mean the shares of common stock, .01 par value per share, of PNR.

PNR LTIP” shall mean the Pioneer Natural Resources Company 2006 Long-Term Incentive Plan, as amended from time to time.

PNR Material Contract” shall have the meaning set forth in Section 4.2(b).

PNR Parties” shall mean PNR, PNR USA and MergerCo.

PNR Restricted Stock Units” shall have the meaning set forth in Section 3.1(e)(i).

PNR SEC Documents” shall have the meaning set forth in Section 5.2.

PNR USA” shall have the meaning set forth in the introductory paragraph to this Agreement.

PNR USA Certificate of Incorporation” shall mean the Certificate of Incorporation of PNR USA as filed with the Secretary of State of Delaware on May 1, 2008.

PNR USA Common Units” shall have the meaning set forth in Section 5.2(l).

Proxy Statement/Prospectus” shall have the meaning set forth in Section 5.1(f).

Receiving Party” shall have the meaning set forth in Section 6.6(b).

Registration Statement” shall have the meaning set forth in Section 5.1(f).

Related Party” shall mean (a) PNR USA and MergerCo, in the case of PNR, and (b) MLP GP, in the case of MLP.

Representatives” shall mean, with respect to a Person, its directors, officers, employees, agents and representatives, including any investment banker, financial advisor, attorney, accountant or other advisor, agent or representative.

Rights” shall mean, with respect to any person, (a) options, warrants, preemptive rights, subscriptions, calls or other rights, convertible securities, exchangeable securities, agreements or commitments of any character obligating such person (or the general partner of such person) to issue, transfer or sell any partnership or other equity interest of such person or any of its Subsidiaries or any securities convertible into or exchangeable or exercisable for such partnership interests or equity interests, or (b) contractual obligations of such person (or the general partner of such person) to repurchase, redeem or otherwise acquire any partnership interest or other equity interest in such person or any of its Subsidiaries or any such securities or agreements listed in clause (a) of this definition.

SEC” shall mean the Securities and Exchange Commission.

Securities Act” shall mean the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

Subsidiary” shall have the meaning ascribed to such term in Rule 1-02 of Regulation S-X under the Securities Act, except that, for purposes of this Agreement, in the case of PNR, MLP GP and MLP and their

respective Subsidiaries shall not be deemed to be Subsidiaries of PNR (unless otherwise specifically provided in this Agreement).

Superior Proposal” shall mean a written Acquisition Proposal (provided, however, that (x) reference to 20% within the definition of “Acquisition Proposal” shall be replaced by 80%, and (y) any proposal or offer to acquire all or substantially all of the issued and outstanding MLP Common Units not owned by PNR USA shall be an Acquisition Proposal for purposes of this definition of Superior Proposal) made by a third party to MLP or the MLP GP Board, for consideration consisting of cash and/or marketable securities, which the MLP GP Conflicts Committee believes in good faith to be bona fide and on terms and conditions which the MLP GP Conflicts Committee determines in good faith (after consultation with its financial and legal advisors) to be more favorable to the MLP Unaffiliated Unitholders from a financial point of view than the Merger Transactions and to be in the best interests of the MLP Unaffiliated Unitholders and MLP, after taking into consideration, among other things, (i) the identity of the Person making the Superior Proposal (including whether approval of the equity owners of such Person is required), (ii) any impediments and risks to theconsummation of the Superior Proposal, (iii)First Company Merger, Opco Merger Sub LLC shall be merged with and into Opco LLC. Following the Opco Merger, the separate existence of Opco Merger Sub LLC shall cease, and Opco LLC shall continue as the Opco Surviving Company, a comparison of alldirect, partially- owned Subsidiary of the terms, conditionsSurviving Corporation and legal, financial, regulatorya direct, partially-owned Subsidiary of Parent (and, following the Second Company Merger Effective Time, a direct, partially-owned Subsidiary of the Surviving Company and other aspectsa direct, partially-owned Subsidiary of Parent) and effectsan indirect wholly-owned Subsidiary of such Superior Proposal with such terms, conditions, aspects and effects of this Agreement, and (iv) any proposal by PNR to amendParent. Upon the terms of this Agreement pursuantand subject to Section 6.2(b).

Surviving Entity” shall have the meaning set forth in Section 2.1(a).

Takeover Law” shall mean any “fair price,” “moratorium,” “control share acquisition,” “business combination” or any other anti-takeover statute or similar statute enacted under state or federal law.

Tax Law” shall mean any Law relating to Taxes.

Taxes” shall mean all taxes, charges, fees, levies or other assessments, including all net income, gross income, gross receipts, sales, use, ad valorem, goods and services, capital, transfer, franchise, profits, license, withholding, payroll, employment, employer health, excise, estimated, severance, stamp, occupation, property or other taxes, custom duties, or other similar assessments or charges of any kind whatsoever, together with any interest and any penalties, additions to tax or additional amounts imposed by any taxing authority, whether disputed or not.

Termination Date” shall have the meaning set forth in Section 8.1(b)(i).

Transaction Confidentiality Agreement” shall mean that certain confidentiality agreement between PNR and the MLP GP Conflicts Committee dated as of June 26, 2013.

Voting Agreement” shall mean the Voting Agreement dated as of the date hereof by and among the PNR Parties and the MLP Parties.

Section 1.2Interpretation. A reference to an Article, Section or Annex means an Article of, a Section in, or Annex to, this Agreement unless otherwise expressly stated. Unless the context requires otherwise, the words “this Agreement,” “hereof,” “hereunder,” “herein,” “hereby” or words of similar import refer to this Agreement as a whole and not to a particular Article, Section, subsection, clause or other subdivision hereof. The words “include,” “includes” and “including” when used herein shall be deemed in each case to be followed by the words “without limitation.” Whenever the context requires, the words used herein include the masculine, feminine and neuter gender, and the singular and the plural. A reference to any legislation or to any provision of any legislation shall include any amendment thereof, any modification or re-enactment thereof, any legislative provision substituted therefor and all regulations and statutory instruments issued thereunder or pursuant thereto. References to “this Agreement” or any other agreement or document shall be construed as a reference to such agreement or document, including any annexes, exhibits, appendices and schedules thereto, as amended, amended and restated, modified or supplemented and in effect from time to time and shall include a reference to

any document which amends, modifies or supplements it. References to a Person or person shall be construed as a reference to such Person or person and its successors and permitted assigns. The headings contained in this Agreement are for reference purposes only and are not part of this Agreement. It is the intention of the parties that every covenant, term and provision of this Agreement shall be construed simply according to its fair meaning and not strictly for or against any party (notwithstanding any rule of law requiring an agreement to be strictly construed against the drafting party), it being understood that the parties to this Agreement are sophisticated and have had adequate opportunity and means to retain counsel to represent their interests and to otherwise negotiate the provisions of this Agreement.

ARTICLE II

THE MERGER; EFFECTS OF THE MERGER

Section 2.1Agreement, as soon as practicable on the Closing Date (and in any event substantially concurrently with the filing of the First Certificate of Merger with the Delaware Secretary of State), the applicable Parties shall file a certificate of merger (the “Opco Certificate of Merger”) with the Delaware Secretary of State, executed in accordance with the relevant provisions of the DLLCA in connection with effecting the Opco Merger. The Opco Merger.

(a)The Surviving Entity. Subject to the terms and conditions of this Agreement, shall become effective at the Effective Time MergerCoas the Parties shall mergespecify in the Opco Certificate of Merger.

(c) Upon the terms and subject to the conditions set forth in this Agreement and in accordance with the DGCL and the DLLCA, at the Second Company Merger Effective Time, the Surviving Corporation shall be merged with and into MLP,Merger Sub LLC. Following the Second Company Merger, the separate corporate existence of MergerCothe Surviving Corporation shall cease, and MLPMerger Sub LLC shall survivebe the Surviving Company. Upon the terms and continuesubject to existthe provisions of this Agreement, as soon as practicable on the Closing Date, the applicable Parties shall file a certificate of merger (the “Second Certificate of Merger” and, together with the First Certificate of Merger and the Opco Certificate of Merger, the “Certificates of Merger”) with the Delaware limited partnership (MLP,Secretary of State, executed in accordance with the relevant provisions of the DGCL and DLLCA in connection with effecting the Second Company Merger. The Second Company Merger shall become effective one minute after the Effective Time (the time the Second Company Merger becomes effective being the “Second Company Merger Effective Time”) as the surviving entityParties shall specify in the Merger, sometimes being referred to herein asSecond Certificate of Merger.

Section 1.2 Closing. The closing of the Mergers (the Surviving EntityClosing”), such that, shall take place on the second Business Day following the Merger, MLP GP will continue to be the sole general partner of MLP, and PNR USA will be the sole limited partner of MLP.

(b)Effectiveness and Effects of the Merger. Subjectsatisfaction or, to the satisfaction orextent permitted by applicable Law, waiver of the conditions set forth in Article VIIVI (other than those conditions that by their terms are to be satisfied at the Closing, but subject to the satisfaction or, to the extent permitted by applicable Law, waiver of those conditions), at the offices of Gibson, Dunn & Crutcher LLP, 2001 Ross Avenue, Suite 2100, Dallas, Texas 75201, unless another date, time or place is agreed to in accordance withwriting by Parent and the Company. The date on which the Closing occurs is referred to in this Agreement as the Merger shall become effective uponClosing Date”. The Parties may complete the filingClosing on the Closing Date by electronic transfer of documents and signature pages to avoid the necessity of a properly executed certificate of merger (the “Certificate of Merger”) with the officephysical Closing. None of the SecretaryTransactions described in Section 1.1 above shall be completed unless all of State of the State of Delaware or such later date and time as may be agreed to by PNR and MLP and set forth in such Certificate of Merger (the “Effective Time”),them are completed substantially concurrently in accordance with the DRULPA andterms of this Agreement.

Section 1.3 Effects of the DLLCA.Mergers. The MergerMergers shall have the effects set forth in this Agreement and in the applicablerelevant provisions of the DRULPADGCL and the DLLCA.DLLCA, as applicable. Without limiting the generality of the foregoing, and subject thereto, (a) at the Effective Time, (i) all the property, rights, privileges, powers and franchises of each of the Company and Merger Sub Inc. shall vest in the Surviving Corporation, and all debts, liabilities, obligations, restrictions, disabilities and duties of each of the Company and Merger Sub Inc. shall become the debts, liabilities, obligations, restrictions, disabilities and duties of the Surviving Corporation and (ii) all the property, rights, privileges, powers and franchises of each of Opco LLC and Opco Merger Sub LLC shall vest in the Opco Surviving Company, and all debts, liabilities, obligations, restrictions, disabilities and duties of each of Opco LLC and Opco Merger Sub LLC shall become the debts, liabilities, obligations, restrictions, disabilities and duties of the Opco Surviving Company and (b) at the Second Company Merger Effective Time, all the property, rights, privileges, powers and franchises of each of the Surviving Corporation and Merger Sub LLC shall vest in the Surviving Company, and all debts, liabilities, obligations, restrictions, disabilities and duties of each of the Surviving Corporation and Merger Sub LLC shall become the debts, liabilities, obligations, restrictions, disabilities and duties of the Surviving Company.

(c)MLP Certificate of Limited Partnership and MLP Partnership Agreement

Section 1.4 Organizational Documents.

(a) At the Effective Time, (i) by virtue of the MLP CertificateFirst Company Merger and without any further action on the part of Limited PartnershipParent, the Company, Merger Sub Inc. or any other Person, the Company Charter shall remain unchangedbe amended so that it reads in its entirety the same as the certificate of incorporation of Merger Sub Inc. as in effect immediately prior to the Effective Time (except that all references therein to Merger Sub Inc. shall be automatically amended to become references to the Surviving Corporation), and as so amended shall be the certificate of limited partnershipincorporation of the Surviving EntityCorporation, subject to Section 5.8(a), until duly amended in accordance with applicable Law. At the Effective Time, the MLP Partnership Agreement shall remain unchanged and shall be the limited partnership agreement of the Surviving Entity until dulythereafter amended in accordance with its terms and as provided by applicable Law.

(d)Tax TreatmentLaw; (ii) by virtue of the Transaction. The parties intendFirst Company Merger and without any further action on the part of Parent, the Company, Merger Sub Inc. or any other Person, the Company Bylaws shall be amended so that for federal income tax purposes (and applicable state income or franchise tax purposes)they read in their entirety the same as the bylaws of Merger Sub Inc. as in effect immediately prior to the Effective Time (except that all references therein to Merger Sub Inc. shall be automatically amended to become references to the Surviving Corporation), and as so amended shall be the bylaws of the Surviving Corporation, subject to Section 5.8(a), until thereafter amended in accordance with IRS Revenue Ruling 99-6, each holdertheir terms and the certificate of a MLP Common Unit (other than MLP, its subsidiariesincorporation of the Surviving Corporation and as provided by applicable Law; and (iii) by virtue of the Opco Merger and without any further action on the part of Parent, the Company, Opco LLC, Opco Merger Sub LLC or PNR)any other Person, the certificate of formation of Opco LLC and the Fourth Amended and Restated Limited Liability Company Agreement of Opco LLC, dated as of July 22, 2019, as amended prior to the date hereof, by and among Opco LLC and the Members (as such term is defined therein) from time to time party thereto (the “Opco LLC Agreement”) shall continue in full force and effect, without any amendment thereto, and shall be treated as transferring its Common Units in exchange for the Merger Considerationcertificate of formation and PNR USA shall be treated as acquiring the assetslimited liability company agreement, respectively, of the MLP deemed distributedOpco Surviving Company, subject to the holders of MLP Common Units (other than MLP, its subsidiaries or PNR) in the deemed liquidation of MLP.

Section 2.2Closing. Subject to the satisfaction or waiver of the conditions set forth in Article VII, the Merger and the other Merger Transactions shall occur (the “Closing”) on (a) the first Business Day after the day on which the last of the conditions set forth in Article VII (excluding conditions that, by their nature, cannot be satisfied 5.8(a), until the Closing Date) shall have been satisfied or waivedthereafter amended in accordance with their respective terms and as provided by applicable Law.

(b) As of the termsSecond Company Merger Effective Time, by virtue of this Agreementthe Second Company Merger and without any further action on the part of Parent, the Surviving Corporation, Merger Sub LLC or (b) suchany other datePerson, the certificate of formation and limited liability company agreement of Merger Sub LLC in effect as of immediately prior to which PNRthe Second Company Merger Effective Time shall be the certificate of formation and MLP may agreelimited liability company agreement, respectively, of the Surviving Company from and after the Second Company Merger Effective Time, subject to Section 5.8(a), until thereafter amended as provided therein or by applicable Law.

Section 1.5 Directors. From and after the Effective Time, until their respective successors are duly elected or appointed and qualified in writing. The date on whichaccordance with applicable Law, the directors of Merger Sub Inc. immediately prior to the Effective Time shall be the directors of the Surviving Corporation.

Section 1.6 Officers. From and after the Effective Time, until their respective successors are duly elected or appointed and qualified in accordance with applicable Law, (i) the officers of Merger Sub Inc. immediately prior to the Effective Time shall be the officers of the Surviving Corporation and (ii) the officers of Opco Merger Sub LLC immediately prior to the Effective Time shall be the officers of the Opco Surviving Company. From and after the Second Company Merger Effective Time, until their respective successors are duly elected or appointed and qualified in accordance with applicable Law, the officers of Merger Sub LLC immediately prior to the Second Company Merger Effective Time shall be the officers of the Surviving Company.

Section 1.7 Parent Board Composition. Prior to the Effective Time, Parent shall take all necessary corporate action so that, upon and after the Effective Time, the size of the Parent Board is increased by two members, and, prior to the Closing, occurseach of Matt Gallagher and A.R. Alameddine (each, in such capacity, a “New Board Designee”) are appointed to the Parent Board to fill the vacancies on the Parent Board created by such increase; provided that, in the event a New Board Designee is referredeither unwilling or unable to serve as the “Closing Date.” The Closinga member of the Merger TransactionsParent Board at the time of such appointment, then another member of the Company Board that is determined by the Parent Board in good faith to be independent with respect to his or her service on the Parent Board and is

mutually agreed between the Company and Parent shall be appointed to fill such vacancy on the Parent Board in

lieu of such New Board Designee. Parent, through the Parent Board, shall take place atall necessary action to nominate

such new directors for election to the officesParent Board in the proxy statement relating to the first annual meeting of Vinson & Elkins LLP, Trammell Crow Center, 2001 Ross Avenue, 39th Floor, Dallas, Texas 75201-2975, at 9:00 a.m. Dallas time onthe Parent Stockholders following the Closing. The Parent Board (or an authorized committee thereof) will, in a manner consistent with its ordinary policies and practices, appoint each New Board Designee to a committee of the Parent Board within 90 days following the Closing Date.

ARTICLE IIIII

MERGER CONSIDERATION;EFFECT ON THE CAPITAL STOCK AND OTHER EQUITY INTERESTS OF THE

CONSTITUENT ENTITIES; EXCHANGE PROCEDURESOF CERTIFICATES

Section 3.1Merger Consideration. Subject to the provisions2.1 Conversion of this Agreement, atCompany Capital Stock.

(a) At the Effective Time, by virtue of the First Company Merger and without any action on the part of PNR, PNR USA, MergerCo, MLP, MLP GPthe Company, Parent, Merger Sub Inc. or the holders of any holdershares of MLPcapital stock of the Company, Parent or Merger Sub Inc.:

(i) Subject to Section 2.4(f), each share of Company Class A Common Units:

(a) The general partner interest in MLPStock issued and outstanding immediately prior to the Effective Time (excluding any Excluded Shares and any unvested Company Restricted Stock Awards that do not vest by their terms as a result of the consummation of the Mergers) (the “Eligible Shares”) shall remain unchangedthereupon be converted into and become exchangeable for 0.1252 (the “Exchange Ratio”) shares of Parent Common Stock (the “Company Merger Consideration”). As of the Effective Time, all such shares of Company Class A Common Stock shall no longer be outstanding, automatically be cancelled, cease to exist, and thereafter only represent the right to receive the Company Merger Consideration, any dividends or other distributions payable pursuant to Section 2.4(d) and any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f), in each case to be issued and outstandingor paid in accordance with Section 2.4, without interest.

(ii) Each share of Company Class A Common Stock held in the Surviving Entity, and MLP GP, as the holder of such general partner interest, shall continue as the sole general partnertreasury of the Surviving Entity as set forth in the MLP Partnership Agreement.

(b) All of the limited liability company interests in MergerCo outstandingCompany or owned, directly or indirectly, by Parent or Merger Sub Inc. immediately prior to the Effective Time (collectively, “Excluded Shares”) shall automatically be cancelled and cease to exist, and no consideration receivedshall be delivered in exchange therefor.

(c) Except as described in clause (d) or (e) below, each MLP Common Unit(iii) Each share of common stock, par value $0.01 per share, of Merger Sub Inc. issued and outstanding immediately prior to the Effective Time shall be converted into the right to receive 0.2325 of aand become one validly issued, fully paid and non-assessable share of PNRcommon stock, par value $0.01 per share, of the Surviving Corporation.

(iv) The Exchange Ratio shall be adjusted to reflect fully the appropriate effect of any stock split, split-up, reverse stock split, stock dividend or distribution of securities convertible into Company Class A Common Stock (such ratio,or Parent Common Stock, or any reorganization, recapitalization, reclassification or other like change with respect to the Exchange Ratio,”Company Class A Common Stock, the Company Class B Common Stock or the Parent Common Stock, in each case having a record date occurring on or after the date of this Agreement and such amountprior to the Effective Time; provided, that nothing in this Section 2.1(a)(iv) shall be construed to permit the Company or Parent to take any action with respect to its securities or otherwise that is prohibited by the terms of athis Agreement.

(b) At the Second Company Merger Effective Time, by virtue of the Second Company Merger and without any action on the part of Parent, the Surviving Corporation, Merger Sub LLC or the holders of any shares of capital stock or other equity interests of Parent, the Surviving Corporation or Merger Sub LLC, each share of PNR Common Stock, including any additional sharescommon stock of PNR Common Stock receivedthe Surviving Corporation issued pursuant to Section 3.3(e), the First Company Merger Consideration”), which shares of PNR Common Stock shall be duly authorized and validly issued in accordance with applicable Laws and the PNR Certificate of Incorporation, as applicable (such shares of PNR Common Stock described in this clause (c) shall be referred to herein as the “New Common Stock”).

(d) Notwithstanding anythingoutstanding immediately prior to the contrary in this Agreement, at theSecond Company Merger Effective Time all MLP Common Units owned by MLP or its Subsidiaries or by PNR or its Subsidiaries other than PNR USA shall automatically be cancelled and retired and cease to exist, and no consideration received therefor. Notwithstanding anythingshall be delivered in exchange therefor, and Parent shall continue as the sole member of the Surviving Company.

Section 2.2 Conversion of Opco LLC Units and Cancellation of Company Class B Common Stock.

(a) At the Effective Time, by virtue of the First Company Merger (with respect to the contraryCompany Class B Common Stock) and the Opco Merger (with respect to the Opco LLC Units) and without any action on the part of Parent, the Company, Merger Sub Inc., Opco Merger Sub LLC, Opco LLC or the holders of any shares of capital stock or other equity interests of Parent, the Company, Merger Sub Inc., Opco Merger Sub LLC or Opco LLC:

(i) Subject to Section 2.4(f), each Opco LLC Unit issued and outstanding immediately prior to the Effective Time (other than any Excluded Opco LLC Unit), and all rights in respect thereof, shall be converted into the right to receive a number of shares of Parent Common Stock (the “Opco Exchange Ratio”) equal to the Exchange Ratio (the “Opco Merger Consideration” and, together with the Company Merger Consideration, the “Merger Consideration”). Each share of Company Class B Common Stock (together with the related Opco LLC Unit, an “Opco LLC Stapled Unit”) shall be automatically cancelled for no additional consideration as of the Effective Time, subject to the right of the holders of any Opco LLC Stapled Units to demand appraisal with respect to, and only with respect to, such holder’s shares of Company Class B Common Stock as contemplated by Section 2.6. The Opco Merger Consideration shall be delivered to the holders of Opco LLC Stapled Units as set forth on Exhibit B (the “Opco Schedule”), which may be updated by Opco LLC from time to time after the date hereof until the date that is three Business Days prior to the Closing Date to reflect transfers and exchanges in accordance with the Opco LLC Agreement, with such updates to be concurrently delivered to Parent. The parties agree that (A) Opco LLC shall be solely responsible for the preparation of the Opco Schedule and determination of the amount of Opco Merger Consideration to be delivered to each holder of Opco LLC Stapled Units as set forth therein, (B) Opco LLC shall prepare the Opco Schedule in accordance with and in compliance with all relevant terms of the Opco LLC Agreement and applicable Law, (C) Parent shall have the right to conclusively rely on the Opco Schedule without investigation or verification of the accuracy of the contents thereof and (D) Parent, the Surviving Company and the Opco Surviving Company shall not have any liability arising out of this Agreement all MLPto any Person for any errors or inaccuracies in the Opco Schedule. The issuance of Parent Common Stock by Parent, and the delivery thereof by the Opco Surviving Company or the Exchange Agent, in accordance with the Opco Schedule shall constitute full satisfaction of their respective obligations with respect to the issuance of the Opco Merger Consideration hereunder. As of the Effective Time, the Opco LLC Units owned by PNR USA(other than the Excluded Opco LLC Units) and shares of Company Class B Common Stock issued and outstanding immediately prior to the Effective Time shall no longer be unchangedoutstanding and remainshall automatically be cancelled and cease to exist, and each holder of such Opco LLC Units and shares of Company Class B Common Stock shall cease to have any rights with respect thereto, except for the right of such holder to receive the Opco Merger Consideration, any dividends or other distributions payable pursuant to Section 2.4(d) and any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f), in each case to be issued and outstanding as MLP Common Unitsor paid in accordance with Section 2.4, without interest.

(ii) Each Opco LLC Unit owned, directly or indirectly, by the Company or Parent or any of the Surviving Entity at the Effective Time; such MLP Common Units will,their respective Subsidiaries immediately afterprior to the Effective Time constitute all(collectively, “Excluded Opco LLC Units”) shall remain outstanding and unaffected by the Opco Merger.

(iii) Each unit of theOpco Merger Sub LLC issued and outstanding MLP Common Units of, and limited partner interests in, the Surviving Entity, and, thereby, PNR USA shall continue as a limited partner in the Surviving Entity and become the sole limited partner of the Surviving Entity. At the Effective Time, the books and records of MLP shall be revised to reflect that all other limited partners of MLP cease to be limited partners of MLP pursuant to the terms of this Agreement, and MLP shall continue without dissolution.

(e) Notwithstanding anything to the contrary in this Agreement:

(i) At the Effective Time, any phantom unit representing the right to receive an MLP Common Unit (collectively, the “MLP Phantom Units”) issued under the MLP LTIP and outstanding immediately prior to the Effective Time shall be converted into awardsautomatically exchanged for a number of restricted stock units of PNR Common Stock (“PNR Restricted Stock Units”), withthe Opco Surviving Company equal to the number of PNR Restricted StockOpco LLC Units subject(other than Excluded Opco LLC Units) issued and outstanding immediately prior to each such converted awardthe Effective Time.

(b) The Opco Merger Consideration issuable in accordance with the terms of MLP Phantomthis Section 2.2 shall be in full satisfaction of all rights pertaining to the Opco LLC Units to be determined based on theand any other equity interests of Opco LLC.

(c) The Opco Exchange Ratio rounded downshall be adjusted to reflect fully the appropriate effect of any unit split, split-up, reverse unit split, unit dividend or distribution of securities convertible into Opco LLC Units, or any reorganization, recapitalization, reclassification or other like change with respect to the nearest whole PNR Restricted Stock Unit. The agreements between MLP GPOpco LLC Units, in each case having a record date occurring on or after the date of this Agreement and each such award holder regarding such MLP Phantom Unitsprior to the Effective Time; provided, that nothing in this Section 2.2(c) shall be assumed by PNR, and such awards, as converted pursuantconstrued to this Section 3.1(e)(i), shall continuepermit Opco LLC to be governed, on and after the Effective Time,take any action with respect to its securities or otherwise that is prohibited by the terms and conditions of such agreements (subject to the adjustments required by this Agreement.

Section 3.1(e)(i) after giving effect to the Merger) and either by the MLP LTIP as adopted by PNR pursuant to Section 6.15(a) or by the PNR LTIP pursuant to Section 6.15(c)2.3 Treatment of Company Equity-Based Awards. Except to the extent provided in Section 3.1(e)(ii) below, as

(a) As of the Effective Time, such MLP Phantom Units shall cease to representautomatically and without any required action on the right to receive MLP Common Units.part of the holder thereof:

(ii) In addition, to(i) each vested Company RSU Award and vested Company PRSU Award (including any Company RSU Award or Company PRSU Award that vests by its terms as a result of the extent applicable, holdersconsummation of MLP Phantom Unitsthe Mergers, including as set forth in this Section 2.3(a)(i)) that is outstanding as of immediately prior to the Effective Time shall, have continued rights to any distribution, without interest, in accordance with the terms and conditions of the applicable award agreements between MLP GP and each such holder (including

pursuant to any distribution equivalent rights) with respect to such MLP Phantom Units with a record date occurring prior toat the Effective Time that may have been declaredautomatically, and without any action on the part of Parent, the Company or made byany holder thereof, be cancelled and converted into the MLP with respectright to MLPreceive a number of shares of Parent Common UnitsStock (to be issued to the holder of such vested Company RSU Award or vested Company PRSU Award within 30 days following the Closing Date in accordance with the terms of the Company RSU Award or the Company PRSU Award, as applicable),rounded up or down to the nearest whole share, equal to the product of (A) the number of shares of Company Class A Common Stock subject to such vested Company RSU Award or vested Company PRSU Award immediately prior to the Effective Time, and (B) the Exchange Ratio; provided, however, notwithstanding anything to the contrary (x) in any Company RSU Award held by a non-employee member of the Company Board (a “Director Award”), all Director Awards will become fully vested as a result of the consummation of the Mergers and be treated as vested Company RSU Awards pursuant to this Agreement and which remains unpaidSection 2.3(a)(i) or (y) in any Company PRSU Award or Company Restricted Stock Award that contains performance-based vesting criteria (collectively, “Company Performance Awards”), all Company Performance Awards will be deemed to have become vested pursuant to their terms based on deemed achievement of the maximum level of performance applicable to such Company Performance Award as of the date immediately prior to the Effective Time. Such distributionsTime and shall be paid on the payment date set therefor to such holders of MLP Phantom Units.

(iii) Any cash amounts duetreated as vested Company PRSU Awards pursuant to this Section 3.1(e) shall be paid 2.3(a)(i) or, delivered less all applicable deductions and withholdings required by applicable law to be withheld in respect of such amounts.

(f) From and after the Effective Time, no holder of MLP Common Units will be, or will have any rights as, a holder of New Common Stock (including any rights to vote, or any rights to receive dividends on, any shares of New Common Stock), other than the right to receive the Merger Consideration and any cash payable pursuant to Section 3.3(c) upon compliance with Section 3.3(b) or Section 3.3(h), until such time that such holder has delivered the required documentation and surrendered any Certificates or Book-Entry Units as contemplated by Section 3.3(b) or has otherwise complied with Section 3.3(h).

Section 3.2Rights As Unitholders; Unit Transfers.

(a) At the Effective Time, each holder of a certificate representing MLP Common Units (a “Certificate”) and each holder of non-certificated MLP Common Units represented by book-entry (“Book-Entry Units”) shall cease to be a unitholder of MLP and cease to have any rights with respect thereto, except the right to receive (i) the Merger Consideration and (ii) any cash amounts payable in in accordance with Section 3.3(c), following such unitholder’s compliance with Section 3.3(b) or Section 3.3(h), in each case, to be issued or paid, without interest, in consideration therefor in accordance with Section 3.3;provided,however, that the rights of (A) any holder of MLP Phantom Units shall beCompany Restricted Stock Awards, as set forth in Section 3.1(e), and (B) PNR and 2.1(a)(i);

(ii) each unvested Company RSU Award (excluding any Company RSU Award that vests by its Subsidiaries and MLP and its Subsidiaries shall beterms as set forth in Section 3.1(d).

(b) In addition, toa result of the extent applicable, (i) holdersconsummation of MLP Common Unitsthe Mergers) that is outstanding as of immediately prior to the Effective Time shall have continued rights to any distribution, without interest, with respectbe converted on the same terms and conditions (including time-based vesting conditions) applicable to such MLP Common Units with a record date occurringunvested Company RSU Award under the applicable Company Plan and Company Award Agreement as of immediately prior to the Effective Time that may have been declaredinto the right to receive a time-based restricted stock unit of Parent covering a number of shares of Parent Common Stock, rounded up or made by MLP with respectdown to the nearest whole share, equal to the product of (A) the number of shares of Company Class A Common Stock subject to such MLP Common Units in accordance with the terms of this Agreement and which remains unpaid as ofunvested Company RSU Award immediately prior to the Effective Time and (ii)(B) the holderExchange Ratio; and

(iii) each unvested Company Restricted Stock Award (excluding any Company Restricted Stock Award that vests by its terms as a result of the general partner interestMergers, including as set forth in MLPSection 2.3(a)(i), which shall be treated as set forth in Section 2.1(a)(i)) that is outstanding as of immediately prior to the Effective Time shall have continued rights to any distribution, without interest, with respectbe converted on the same terms and conditions (including time-based vesting conditions) applicable to such general partner interest in MLP with a record date occurringCompany Restricted Stock Award under the applicable Company Plan and Company Award Agreement as of immediately prior to the Effective Time that may have been declaredinto the right to receive time-based restricted shares of Parent Common Stock, rounded up or made by MLPdown to the nearest whole share, equal to the product of (A) the number of shares of Company Class A Common Stock subject to such Company Restricted Stock Award immediately prior to the Effective Time and (B) the Exchange Ratio.

(b) The Company and Parent shall each take, or cause to be taken, all action necessary, as applicable, to provide for the treatment of the Company Stock Awards as set forth in the foregoing provisions of this Section 2.3.

(c) As of the Effective Time, Parent shall assume the Parsley Energy, Inc. 2014 Long Term Incentive Plan, as amended and the Jagged Peak Energy 2017 Long Term Incentive Plan, including (i) all of the obligations with respect to the Company Stock Awards, as cancelled or converted as set forth in the foregoing provisions of this Section 2.3 and (ii) with respect to any number of shares (as adjusted pursuant to the Exchange Ratio) that remain (or may again become) available for future issuance thereunder (“Remaining Company Plan Shares”), subject to any limitations under applicable Law or any applicable securities exchange listing requirements. In

addition, as soon as practicable following the Effective Time, Parent shall file with the SEC one or more appropriate registration statements with respect to all converted Company Stock Awards under this Section 2.3 and all Parent Common Stock that may be issued in connection with such general partner interest in MLPconverted Company Stock Awards and the Remaining Company Plan Shares.

(d) For the avoidance of doubt, the payment of all amounts payable pursuant to this Section 2.3 shall be subject to appropriate withholding (as applicable) for Taxes in accordance with the terms of this AgreementSection 2.5.

Section 2.4 Exchange and which remains unpaid as of the Effective Time. Such distributions by MLP are not part of the Merger Consideration and shall be paid on the payment date set therefor to such holders of MLPPayment for Company Common Units, whether or not they exchange their MLP Common Units pursuant to Section 3.3, and such holder of the general partner interest in MLP, as applicable.Stock.

(c) At the Effective Time, the unit transfer books of MLP shall be closed immediately and there shall be no further registration of transfers on the unit transfer books of MLP with respect to MLP Common Units, except for MLP Common Units owned by PNR USA.

Section 3.3Exchange of Certificates.

(a)Exchange Agent.Prior to the Effective Time, PNRParent shall appointdeposit (or cause to be deposited) with a commercial bank or trust company designated by Parent and reasonably acceptable to MLP to act as exchange agent hereunderthe Company (the “Exchange Agent”), in trust for the purposebenefit of exchanging MLP Common(i) holders of Eligible Shares and (ii) holders of Opco LLC Stapled Units foridentified on the Opco Schedule, book-entry shares (or certificates if requested) representing the shares of NewParent Common Stock and cashissuable pursuant to Section 2.1(a)(i) or Section 2.2(a)(i), as requiredapplicable. In addition, Parent shall make available by this Article III (the “depositing with the Exchange Agent,”). Promptly as necessary from time to time after the Effective Time, PNR shall deposit,any dividends or shall cause a PNR Partydistributions payable pursuant to deposit,Section 2.4(d) and any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f). All shares of Parent Common Stock, dividends, distributions and cash deposited with the Exchange Agent for the benefit of the holders of the applicable MLP CommonEligible Shares and holders of Opco LLC Stapled Units for exchange in accordance with this Article III, through the Exchange Agent, shares of New Common Stock and cash as required by this Article III. PNR agrees to make available to the Exchange Agent, from time to time as needed, cash sufficient to pay any

amounts payable pursuant to Section 3.3(c), without interest. Any cash and shares of New Common Stock deposited with the Exchange Agent shallare hereinafter be referred to as the “Exchange Fund.” The Exchange Agent shall, pursuant to irrevocable instructions, deliver the Merger Consideration contemplated to be paidissued in exchange for MLPCommonEligible Shares and Opco LLC Stapled Units pursuant to this Agreement out of the Exchange Fund. Except as contemplated by Sections 3.3(c)this Section 2.4(a), Section 2.4(d) and Section 2.4(f), the Exchange Fund shall not be used for any other purpose.

(b)Exchange Procedures. Promptly As soon as reasonably practicable after the Effective Time, PNRthe Surviving Company and the Opco Surviving Company shall instructcause the Exchange Agent to mail to (i) each record holder of MLP Common Units asrecord of a certificate (a “Certificate”) that immediately prior to the Effective Time (other than (x) holdersrepresented outstanding Eligible Shares that were converted into the right to receive the Company Merger Consideration, any dividends or distributions payable pursuant to Section 2.4(d) and any cash in lieu of MLP Phantomfractional shares of Parent Common Stock payable pursuant to Section 2.4(f) and (ii) each holder of Opco LLC Stapled Units identified on the Opco Schedule as entitled to receive the Opco Merger Consideration, any dividends or distributions payable pursuant to Section 2.4(d)and (y) MLP and its Subsidiaries and PNR and its Subsidiaries) (i)any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f) (A) a form of letter of transmittal (which, with respect to holders of Certificates, shall specify that in respect of certificated MLP Common Units, delivery shall be effected, and risk of loss and title to the Certificates held by such Person shall pass, only upon proper delivery of the Certificates to the Exchange Agent, andAgent), which letter shall be in customary form and agreed to by PNRcontain such other provisions as Parent or the Exchange Agent may reasonably specify, and MLP prior to the Effective Time) (the “Letter of Transmittal”) and (ii)(B) instructions (which shall be in customary form and agreed to by PNR and MLP prior to the Effective Time) for use in effecting the surrender of thesuch Certificates or Book-EntryOpco LLC Stapled Units, as applicable, in exchange for the Company Merger Consideration or Opco Merger Consideration, respectively, any dividends or other distributions payable pursuant to Section 2.4(d) and any cash in respectlieu of MLPfractional shares of Parent Common Units represented by such Certificates or Book-Entry Units, as applicable. Promptly after the Effective Time, uponStock payable pursuant to Section 2.4(f). Upon surrender of Certificates, if any, for cancellationa Certificate to the Exchange Agent, together with such lettersletter of transmittal, properlyduly completed and dulyvalidly executed in accordance with the instructions thereto, and such other documents (including in respectas the Exchange Agent may reasonably require, the holder of Book-Entry Units) as may be required pursuant to such instructions, each holder who held MLP Common Units immediately prior to the Effective Time (other than (x) holders of MLP Phantom Units and (y) MLP and its Subsidiaries and PNR and its Subsidiaries)Certificate shall be entitled to receive upon surrenderin exchange for the Eligible Shares formerly represented by such Certificate (1) that number of the Certificates or Book-Entry Units therefor (A)whole shares of NewParent Common Stock representing, in the aggregate, the whole number of shares of New Common Stock that such holder has the right to receive pursuant to this Article III (after taking into account all MLP Common UnitsEligible Shares then held by such holder)holder under all Certificates so surrendered) to which such holder of Eligible Shares shall have become entitled pursuant to Section 2.1(a)(i) (which shall be in uncertificated book-entry form unless a physical certificate is requested), (2) any dividends or other distributions payable pursuant to Section 2.4(d) and (B)(3) any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f), and the Certificate so surrendered shall forthwith be cancelled. Upon delivery by a checkholder of Opco LLC Stapled Units of such letter of transmittal, duly completed and validly executed in an amount equalaccordance with the instructions thereto, and such other documents as the Exchange Agent may reasonably require, to the aggregate amountExchange Agent, the holder of cashsuch Opco LLC Stapled Units shall be entitled to receive in exchange for such Opco LLC Stapled Units (1) that number of whole shares of Parent

Common Stock to which such holder has the right to receiveof Opco LLC Stapled Units shall have become entitled pursuant to Section 2.2(a)(i) (which shall be in uncertificated book-entry form unless a physical certificate is requested), (2) any dividends or other distributions payable pursuant to Section 2.4(d) and (3) any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 3.3(c)2.4(f). As promptly as practicable after the Effective Time and in any event not later than the third Business Day thereafter, the Surviving Company shall cause the Exchange Agent to issue and send to each holder of uncertificated Eligible Shares represented by book entry (“Book-Entry Shares”) (x) that number of whole shares of Parent Common Stock to which such holder of Book-Entry Shares shall have become entitled pursuant to the provisions of Section 2.1(a)(i) (which shall be in book-entry form unless a physical certificate is requested), (y) any dividends or other distributions payable pursuant to Section 2.4(d) and (z) any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f), without such holder being required to deliver a Certificate or an executed letter of transmittal to the Exchange Agent, and such Book-Entry Shares shall then be cancelled. No interest shallwill be paid or accrued on any Merger Considerationunpaid dividends and distributions or any amounts payable pursuant to Section 3.3(c). In the eventcash in lieu of a transfer of ownership of MLP Common Units that has not been registered in the transfer records of MLP, the Merger Consideration payable in respect of such MLP Common Units may be paid to a transferee, if the Certificate representing such MLP Common Units or evidence of ownership of the Book-Entry Units is presented to the Exchange Agent, and, in the case of both certificated and book-entry MLP Common Units, accompanied by all documents reasonably required to evidence and effect such transfer, and the Person requesting such exchange shall pay to the Exchange Agent in advance any transfer or other Taxes required by reason of the delivery of the Merger Consideration in any name other than that of the record holder of such MLP Common Units or shall establish to the satisfaction of the Exchange Agent that such Taxes have been paid or are not payable. Until such required documentation has been delivered and Certificates,fractional shares, if any, payable to holders of Certificates, Book-Entry Shares or Book-Entry Units have beenOpco LLC Stapled Units. Until surrendered as contemplated by this Section 3.3, (i) 2.4, each Certificate, Book-Entry Share or Book-EntryOpco LLC Stapled Unit shall be deemed at any time after the Effective Time to represent only the right to receive upon such delivery and surrender the Company Merger Consideration or Opco Merger Consideration, as applicable, payable in respect of MLP Common Units,thereof, any cash amountsdividends or other distributions payable pursuant to Section 3.3(c), 2.4(d) and (without the necessity of such surrender) any cash or distributions to which such holder is entitledin lieu of fractional shares of Parent Common Stock payable pursuant to Section 3.2(b), 2.4(f).

(c) If payment of the Company Merger Consideration or the Opco Merger Consideration is to be made to a Person other than the Person in whose name the surrendered Certificate, Book-Entry Share or Opco LLC Stapled Unit (as applicable) is registered, it shall be a condition of payment that such Certificate so surrendered shall be properly endorsed or shall be otherwise in proper form for transfer or such Book-Entry Share or Opco LLC Stapled Unit shall be properly transferred and (ii) sharesthat the Person requesting such payment shall have paid any transfer and other Taxes required by reason of New Common Stock issuable in respectthe payment of and upon the surrenderCompany Merger Consideration or Opco Merger Consideration (as applicable) to a Person other than the registered holder of such Certificate, Book-Entry Share or Book-EntryOpco LLC Stapled Unit pursuantor shall have established to this Section 3.3(b) shallthe satisfaction of Parent that such Tax is not be deemed to be issued or outstanding for any purpose.applicable.

(c)Dividends with Respect to Unexchanged MLP Common Units.(d) (i) No dividends declared or madeother distributions with respect to shares of PNRParent Common Stock with a record date after the Effective Time shall be paid to (A) the holder of any MLP Common Unitsunsurrendered Certificate with respect to the shares of NewParent Common Stock and suchthat the holder shall not be a stockholder of New Common Stock and shall have nothereof has the right to receive such dividends, ifupon the surrender thereof, and no cash payment in lieu of fractional shares of Parent Common Stock shall be paid to any such holder pursuant to Section 2.4(f), in each case until the holder thereof shall surrender such Certificate in accordance with this Article II or (B) the holder of any Opco LLC Stapled Unit with respect to the shares of Parent Common Stock that the holder thereof has not delivered the required documentationright to receive upon the surrender thereof, and surrenderedno cash payment in lieu of fractional shares of Parent Common Stock shall be paid to any Certificatessuch holder pursuant to Section 2.4(f), in each case until the holder thereof shall deliver to the Exchange Agent a duly completed and validly executed letter of transmittal in accordance with this Article II. Following the surrender of a Certificate by a record holder of Eligible Shares or Book-Entrythe delivery of a duly completed and validly executed letter of transmittal by a holder of Opco LLC Stapled Units, as contemplated by Section 3.3(b) or otherwise compliedapplicable, in each case in accordance with Section 3.3(h). Subject to applicable Law, following compliance with the requirements of Section 3.3(b) or Section 3.3(h)this Article II, there shall be paid to such holder, of shares of New Common Stock issuable in exchange therefor, without interest, (i)(1) promptly after the time of such compliance, an amount in cash equal tosurrender, the amount of any dividends that were declared or madeother distributions with a record date after the Effective Time and a payment date priortheretofore paid with respect to such compliance with Section 3.3(b) or Section 3.3(h), payable with respect to

whole shares of PNRParent Common Stock and (ii)the amount of any cash payable in lieu of a fractional share of Parent Common Stock to which such holder is entitled pursuant to Section 2.4(f) and (2) at the appropriate payment date, the amount of dividends or other distributions with a recorddate after the Effective Time but prior to such delivery and surrender and with a payment date subsequent to such compliancesurrender payable with respect to such whole shares of NewParent Common Stock.

(d)Further Rights    (ii) Notwithstanding anything in MLPthe foregoing to the contrary, holders of Book-Entry Shares who are entitled to receive shares of Parent Common Units.Stock under this Article II shall be paid (A) at the time of payment of such Parent Common Stock by the Exchange Agent under Section 2.4(b), the amount of dividends or other distributions with a record date after the Effective Time theretofore paid with respect to such whole shares of Parent Common Stock, and the amount of any cash payable in lieu of a fractional share of Parent Common Stock

to which such holder is entitled pursuant to Section 2.4(f) and (B) at the appropriate payment date, the amount of dividends or other distributions with a record date after the Effective Time but prior to the time of such payment by the Exchange Agent under Section 2.4(b) and a payment date subsequent to the time of such payment by the Exchange Agent under Section 2.4(b) payable with respect to such whole shares of Parent Common Stock.

(e) The Merger Consideration or Opco Merger Consideration (as applicable), any dividends or other distributions payable pursuant to Section 2.4(d) and any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f)issued upon conversion of an MLP Common Unitand paid in accordance with the terms hereof (including any cash paid pursuant to Section 3.3(c)) and any declared distributions to be paid on MLP Common Units as described in Section 3.2(b)of this Article II shall be deemed to have been issued and paid in full satisfaction of all rights pertaining to such MLP Common Unit.

(e)No Fractional Sharesthe shares of NewCompany Class A Common Stock. No certificates formerly represented by such Certificates, the Book-Entry Shares or scripthe Opco LLC Stapled Units, as applicable. At the Effective Time, (i) the stock transfer books of the Company shall be closed and there shall be no further registration of transfers of the shares of New Common Stock representing fractional shares of NewCompany Class A Common Stock or book entry credit of the same shall be issued upon the surrender of MLPCompany Class B Common UnitsStock that were outstanding immediately prior to the Effective Time, and (ii) the transfer books of Opco LLC shall be closed and there shall be no further registration of transfers of the Opco LLC Units that were outstanding immediately prior to the Effective Time. If, after the Effective Time, Certificates are presented to the Surviving Company or the Exchange Agent for transfer or transfer is sought for Book-Entry Shares or Opco LLC Stapled Units, such Certificates, Book-Entry Shares or Opco LLC Stapled Units shall be cancelled and exchanged as provided in accordancethis Article II, subject to applicable Law in the case of Dissenting Shares.

(f) Notwithstanding anything to the contrary contained herein, no certificates or scrip representing fractional shares of Parent Common Stock shall be issued upon the surrender for exchange of Certificates, Book-Entry Shares or Opco LLC Stapled Units, no dividends or other distributions with Section 3.3(b),respect to the Parent Common Stock shall be payable on or with respect to any fractional share, and such fractional share interests willshall not entitle the owner thereof to vote or to have any other rights asof a holderstockholder of any shares of New Common Stock.Parent. In lieu of receivingthe issuance of any such fractional share, Parent shall pay to each former stockholder of the Company or former member of Opco LLC who otherwise would be entitled to receive a fractional share of NewParent Common Stock toan amount in cash (without interest) determined by multiplying (i) the fraction of a share of Parent Common Stock which any MLP Unitholdersuch holder would otherwise have been entitled, after aggregating all fractions of shares to which such unitholder would be entitled any fractionalto receive (taking into account all shares of Company Class A Common Stock or Opco LLC Stapled Units, as applicable, held at the Effective Time by such holder and rounded to the nearest thousandth when expressed in decimal form) pursuant to Section 2.1(a)(i) or Section 2.2(a)(i), as applicable, by (ii) the per share will be rounded upvolume weighted average price of Parent Common Stock for the five consecutive trading days immediately prior to a whole share of New Common Stock.the Closing Date as reported by Bloomberg, L.P.

(f)Termination of Exchange Fund.(g) Any portion of the Exchange Fund constituting shares of New Common Stock or cash that remains undistributed to the holders of MLP CommonCertificates, Book-Entry Shares or Opco LLC Stapled Units after 180 days followingafter the Effective Time shall be delivered to PNRthe Surviving Company, upon demand, by PNR and from and after such delivery, any formerremaining holders of MLP CommonCertificates or Book-Entry Shares (except to the extent representing Excluded Shares) or Opco LLC Stapled Units who have not theretofore complied with this Article III(except to the extent representing Excluded Opco LLC Units) shall thereafter look only to PNRthe Surviving Company, as general creditors thereof, for payment of the Company Merger Consideration payable in respect of such MLP Common Units or Opco Merger Consideration (as applicable), any cash amountsunpaid dividends or other distributions payable pursuant to Section 3.3(c), following compliance with  2.4(d) and any cash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 3.3(b) 2.4(f) (subject to abandoned property, escheat or Section 3.3(h)other similar Laws), without any interest thereon. Any amounts remaining unclaimed by holders of MLP Common Units immediately prior to such time as such amounts would otherwise escheat to or become the property of any governmental entity shall,interest.

(h) Notwithstanding anything to the extent permitted by applicable Law, be held by PNR. Without limitation of the foregoing, after 180 days following the Effective Time, any amounts remaining unclaimed by holders of MLP Common Units shall become the property of PNR, subject to the legitimate claims of any Person previously entitled thereto.

(g)No Liability. To the fullest extent permitted by Law,contrary in this Section 2.4, none of MLP GP, PNR, PNR USA, MLP,Parent, the Surviving EntityCorporation, the Surviving Company, the Opco Surviving Company, the Exchange Agent or their respective Representativesany other Person shall be liable to any holderPerson in respect of MLP Common Units for any shares of PNRParent Common Stock, (or dividends or other distributions with respect thereto)thereto or cash in lieu of fractional shares of Parent Common Stock properly delivered to a public official pursuant to any applicable abandoned property, escheat or other similar Law.Laws.

(h)Lost(i) The Exchange Agent shall invest any cash included in the Exchange Fund as reasonably directed by Parent on a daily basis. Any interest and other income resulting from such investments in amounts in excess of the amounts payable hereunder shall be paid to Parent on demand at any time and from time to time. Parent or the Surviving Company shall pay all charges and expenses, including those of the Exchange Agent, in connection with the exchange of Certificates, Book-Entry Shares or Opco LLC Stapled Units pursuant to this Agreement. To

the extent, for any reason, the amount in the Exchange Fund is below that required to make prompt payment of the aggregate cash payments contemplated by this Article II, Parent shall promptly replace, restore or supplement the cash in the Exchange Fund so as to ensure that the Exchange Fund is at all times maintained at a level sufficient for the Exchange Agent to make the payment of the aggregate cash payments contemplated by this Article II.

(j) If any Certificate shall have been lost, stolen or destroyed, upon the making of an affidavit, in form and substance reasonably acceptable to Parent and the Exchange Agent, of that fact by the Person claiming such Certificate to be lost, stolen or destroyed and, if required by PNR,Parent or the Exchange Agent, the posting by such Person of an indemnity agreement or a bond in a customarysuch amount as Parent or the Exchange Agent may determine is reasonably necessary as indemnity against any claim that may be made against it or the Surviving Company with respect to such Certificate, the Exchange Agent shall paywill deliver in exchange for such lost, stolen or destroyed Certificate the Company Merger Consideration payable in respect of MLP Common Units represented by such Certificatethereof, any dividends or other distributions payable pursuant to Section 2.4(d) and any payments to which the holders thereof are entitledcash in lieu of fractional shares of Parent Common Stock payable pursuant to Section 2.4(f).

Section 3.3(c)2.5 Withholding Rights.

(i)Withholding. The(a) Each of the Parent Parties, the Surviving Corporation, the Surviving Company, the Opco Surviving Company, the Company, Opco LLC and the Exchange Agent shall be entitled to deduct and withhold, or cause to be deducted and withheld, from the consideration otherwise payable pursuant to this Agreement to any holder of MLP CommonEligible Shares, Opco LLC Stapled Units or Company Stock Awards, as applicable, such amounts as the Exchange Agent reasonably deems to bePerson making such payment is required to deduct and withhold under the Code or any provision of state, local or foreign Taxtax Law with respect(and, for the avoidance of doubt, to the makingextent deduction and withholding is required in respect of such payment;provided, however, that the Exchange Agent shall provide reasonable notice to the applicable holdersdelivery of MLPany Parent Common Units prior to withholding any amountsStock pursuant to this Section 3.3(i)Agreement, a portion of the Parent Common Stock otherwise deliverable hereunder may be withheld). To the extent that amounts are so properly deducted or withheld and withheld bypaid over to the Exchange Agent,relevant Governmental Entity, such deducted or withheld amounts shall be treated for all purposes of this Agreement as having been paid to the holder of MLP Common UnitsPerson in respect of whom such deduction andor withholding was made, byand, if a portion of the Parent Common Stock otherwise deliverable to a Person is withheld hereunder, the relevant withholding party shall be treated as having sold such Parent Common Stock on behalf of such Person for an amount of cash equal to the fair market value thereof at the time of the required withholding (which fair market value shall be deemed to be the closing price of shares of Parent Common Stock on the NYSE on the Closing Date) and having paid such cash proceeds to the appropriate Governmental Entity.

(b) Opco LLC shall use commercially reasonable efforts to deliver to Parent at or prior to the Closing a properly executed certificate of non-foreign status, meeting the requirements of Code Sections 1445 and 1446(f) (and the applicable regulations thereunder), in a form reasonably acceptable to Parent, with respect to each holder of Opco LLC Units. Neither the Exchange Agent.

(j)Agent nor any Party shall be entitled to deduct and withhold, or cause to be deducted and withheld, any amount under Code Sections 1445 and 1446(f) from the consideration otherwise payable pursuant to this Agreement to any holder of Opco LLC Units (in respect of such Opco LLC Units) for which such a certificate of non-foreign status is provided; Investmentprovided, that this Section 2.5(b) shall not be construed to restrict the rights of the Exchange FundAgent or any Party to withhold under Code Sections 1445 and 1446(f) in respect of a change in applicable tax law occurring after the date of this Agreement.

Section 2.6 Dissenting Shares. PNR shall causeNotwithstanding anything in this Agreement to the Exchange Agentcontrary, shares of Company Class B Common Stock issued and outstanding immediately prior to investthe Effective Time that are held by any cash included in the Exchange Fund as directed by PNR on a daily basis, in PNR’s sole discretion;provided,however, that (i) any investmentholder who is entitled to demand and properly demands appraisal of such Exchange Fundshares pursuant to Section 262 of the DGCL (“Dissenting Shares”) shall be limitedtreated in accordance with Section 262 of the DGCL. The Company shall serve prompt notice to direct short-term obligationsParent of any demands for appraisal of any shares of Company Class B Common Stock, attempted withdrawals of such notices or short-term obligations fully guaranteed as to principaldemands and interestany other instruments received by the U.S. government,Company relating to rights to appraisal, and (ii) no such investment or loss thereonParent shall affecthave the amounts payable or the timing of the amounts payableright to MLP Unitholders pursuant to the other provisions of this Section 3.3. Any interestparticipate in and other income resulting from such investments shall be paid promptly to PNR.

Section 3.4Anti-Dilution Provisions. In the event of any subdivisions, reclassifications, recapitalizations, splits, unit or stock distributions or dividends, combinations or exchangesdirect all negotiations and proceedings with respect to or Rights in respect of, MLP Common Units (as permitted pursuant to Section 4.1(c)) or shares of PNR Common Stock, the Exchange Ratio, the Merger Consideration and the number of shares of New Common Stock to be issued in the Merger will be correspondingly adjusted to provide to the holders of MLP Common Units the same economic effect as contemplated by this Agreement prior to such event.

ARTICLE IV

ACTIONS PENDING MERGER

Section 4.1Conduct of Business by MLP and MLP GP. From the date hereof until the earlier of the Effective Time and the termination of this Agreement pursuant to Article VIII, and except (a) as expressly contemplated or permitted by this Agreement, (b) as may be required by applicable Law, or (c) withdemands. The Company shall not, without the prior written consent of PNR (which consent shall not be unreasonably withheld, delayed or conditioned), MLP and MLP GP shall not, and shall cause each of their respective Subsidiaries not to, and neither PNR nor PNR USA shall cause MLP or MLP GP to:

(a) (i) (x) Conduct its business and the business of its Subsidiaries other than in the ordinary course, or (y) fail to use commercially reasonable efforts to preserve intact its business organization, goodwill and assets and maintain its rights, franchises and existing relations with customers, suppliers, employees and business associates, except in either case of (x) or (y) that could not reasonably be expected to have a Material Adverse EffectParent, make any payment with respect to, MLPsettle or (ii) takeoffer to settle, or approve any action that could reasonably be expected to have a material adverse effect on the abilitywithdrawal of any partysuch demands. For

the avoidance of doubt, (a) no dissenters’ or appraisal rights shall be available with respect to obtain any approvals required for the Merger Transactions.

Company Class A Common Stock or with respect to the Opco LLC Units and (b) (i) Issue, sell or otherwise permitappraisal rights shall be limited to become outstanding, or authorize the creation of, any additional equity (other thanan appraisal, pursuant to Rights outstandingSection 262 of the DGCL, solely of the fair value of the Company Class B Common Stock, as ofsuch.

ARTICLE III

REPRESENTATIONS AND WARRANTIES OF THE COMPANY PARTIES

Except (i) as and to the extent disclosed in the Company SEC Documents filed or furnished with the SEC on or after January 1, 2019 and publicly available prior to the date of this Agreement or issued thereafter not in violation of this Agreement) or(other than any additional Rights, (ii) enter into any agreement with respect to the foregoing, or (iii) permit any additional equity interests to become subject to new grants of restricted units, phantom units, employee unit options, unit appreciation rights or similar equity-based employee Rights.

(c) (i) Split, combine or reclassify any of its equity interests or issue or authorize or propose the issuance of any other securities in respect of, in lieu of or in substitution for its equity interests, or (ii) repurchase, redeem or otherwise acquire, or permit any of its Subsidiaries to purchase, redeem or otherwise acquire, any partnership or other equity interests or Rights, except for net unit settlements made in connection with the vesting of restricted units or as required by the terms of its securities outstanding on the date hereof by any existing Compensation and Benefit Plan.

(d) (i) Sell, lease, dispose of or discontinue all or any portion of its assets, business or properties other than in the ordinary course of business, including distributions permitted under Section 4.1(e), (ii) acquire, by merger or otherwise, or lease any assets or all or any portion of the business or property of any other entity other than in the ordinary course of business consistent with past practice, (iii) merge, consolidate or enter into any other business combination transaction with any Person, or (iv) convert from a limited partnership or limited liability company, as the case may be, to any other business entity.

(e) Make or declare any dividends or distributions (i) to the holders of MLP Common Units, other than a regular quarterly distribution in a cash amount not in excess of $0.52 per MLP Common Unit to be declared and paid on or prior to 45 days after the end of each calendar quarter, the record date for which is prior to the Effective Time, consistent with past practice, or (ii) to the holders of any other units of or interests in MLP, other than distributions in respect of the general partner interest in MLP concurrently with distributions in respect of MLP Common Units.

(f) Amend the MLP Partnership Agreement or the MLP GP LLC Agreement.

(g) Except as would not prevent or materially delay the consummation of the Merger Transactions past the Termination Date and as would not be materially adverse to MLP and its Subsidiaries, taken as a whole, or PNR and its Subsidiaries, taken as a whole, enter into any “material contract” (as such term is defined in Item 601(b)(10) of Regulation S-K of the SEC) (including material contracts in effect on the date of this Agreement, an “MLP Material Contract”).

(h) Modify, amend, terminate or assign, or waive or assign any rights under, any MLP Material Contract in any material respect in a manner which is materially adverse to MLP and its Subsidiaries, taken as a whole, or PNR and its Subsidiaries, taken as a whole, or which could prevent or materially delay the consummation of the Merger Transactions past the Termination Date.

(i) Waive, release, assign, settle or compromise any claim, action or proceeding, including any state or federal regulatory proceeding, seeking damages or injunction or other equitable relief, that (i) is material to MLP and its Subsidiaries, taken as a whole, or (ii) is a claim, action or proceeding relating to the Merger Transactions or this Agreement.

(j) Implement or adopt any material change in its accounting principles, practices or methods, other than as may be required by U.S. generally accepted accounting principles.

(k) Fail to use commercially reasonable efforts to maintain, with financially responsible insurance companies, insurance in such amounts and against such risks and losses as is maintained by it at present.

(l) (i) Change in any material respect any of its express or deemed elections relating to Taxes, including elections for any and all joint ventures, partnerships, limited liability companies or other investments where it has the capacity to make such binding election, (ii) settle or compromise any material claim, action, suit, litigation, proceeding, arbitration, investigation, audit or controversy relating to Taxes, or (iii) change in any material respect any of its methods of reporting income or deductions for federal income tax purposes from those employed in the preparation of its federal income tax return for the most recent taxable year for which a return has been filed, except as may be required by applicable Law.

(m) (i) Adopt, enter into, amend or otherwise increase, or accelerate the payment or vesting of the amounts, benefits or rights payable or accrued or to become payable or accrued under, any Compensation and Benefit Plan, (ii) grant any severance or termination pay to any officer or director of MLP GP or MLP or any of their Subsidiaries, or (iii) establish, adopt, enter into or amend any plan, policy, program or arrangement for the benefit of any current or former directors or officers of MLP GP or MLP or any of their Subsidiaries or any of their beneficiaries.

(n) Other than in the ordinary course of business consistent with past practice, (i) incur, assume, guarantee or otherwise become liable for any Indebtedness (directly, contingently or otherwise), other than borrowings under existing revolving credit facilities, or (ii) create any Lien on its property or the property of its Subsidiaries to secure Indebtedness.

(o) Authorize, recommend, propose or announce an intention to adopt a plan of complete or partial dissolution or liquidation.

(p) Knowingly take any action that is intended or is reasonably likely to result in (i) any of its representations and warrantiesdisclosures set forth in this Agreement being or becoming untrueany risk factor section, in any material respect at the Closing Date, (ii)section relating to forward looking statements and any of the conditions set forth in Article VII not being satisfied, (iii) any material delay or prevention of the consummation of the Merger, or (iv) a material violation of any provision of this Agreement.

(q) Agree or commit to do anything prohibited by clauses (a) through (p) of this Section 4.1.

Section 4.2Conduct of Business by PNR and PNR USA. From the date hereof until the earlier of the Effective Time and the termination of this Agreement pursuant to Article VIII, and except (a) as expressly contemplated or permitted by this Agreement, (b) as may be required by applicable Law, or (c) with the prior written consent of the MLP GP Conflicts Committee (which consent shall not be unreasonably withheld, delayed or conditioned), PNR and PNR USA shall not, and shall cause each of their respective Subsidiaries not to:

(a) (i) (x) Conduct its business and the business of its Subsidiaries other than in the ordinary course or (y) fail to use commercially reasonable efforts to preserve intact its business organization, goodwill and assets and maintain its rights, franchises and existing relations with customers, suppliers, employees and business associates, except in either case of (x) or (y) that could not reasonably be expected to have a Material Adverse Effect on PNR or (ii) take any action that could reasonably be expected to have a material adverse effect on the ability of any party to obtain any approvals required for the Merger Transactions.

(b) Except as would not be likely to have a Material Adverse Effect on PNR, enter into any “material contract” (as such term is defined in Item 601(b)(10) of Regulation S-K of the SEC) (including material contracts in effect on the date of this Agreement, a “PNR Material Contract”).

(c) Modify, amend, terminate or assign, or waive or assign any rights under, any PNR Material Contract in a manner which would be likely to have a Material Adverse Effect on PNR.

(d) Waive, release, assign, settle or compromise any claim, action or proceeding, including any state or federal regulatory proceeding, seeking damages or injunction or other equitable relief that would reasonably be expected to have a Material Adverse Effect on PNR.

(e) Implement or adopt any material change in its accounting principles, practices or methods, other than as may be required by U.S. generally accepted accounting principles.

(f) Fail to use commercially reasonable efforts to maintain, with financially responsible insurance companies, insurance in such amounts and against such risks and losses as has been customarily maintained by it in the past.

(g) Authorize, recommend, propose or announce an intention to adopt a plan of complete or partial dissolution or liquidation.

(h) Knowingly take any action that is intended or is reasonably likely to result in (i) any of its representations and warranties or any representations and warranties of MLP GP or MLP set forth in this Agreement being or becoming untrue in any material respect at the Closing Date, (ii) any of the conditions set forth in Article VII not being satisfied, or (iii) a material violation of any provision of this Agreement.

(i) Sell, transfer or otherwise dispose of any MLP Common Units, MLP general partner units or other interests in MLP.

(j) Agree or commit to do anything prohibited by clauses (a) through (i) of this Section 4.2.

ARTICLE V

REPRESENTATIONS AND WARRANTIES

Section 5.1Representations and Warranties of MLP Parties. Except as set forth in MLP’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012, and all other reports, registration statements, definitive proxy statements or information statements filed by MLP or any of its Subsidiaries subsequent to December 31, 2012 under the Securities Act, or under Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act, in the form filed with the SEC (collectively, “MLP SEC Documents”) prior to the date hereof (excluding any disclosures included therein to the extent they are predictive, cautionary predictive or forward-looking in nature, including thosenature) (the “Filed Company SEC Documents”) or (ii) as set forth in the corresponding section or subsection of the disclosure letter delivered by the Company to Parent immediately prior to the execution of this Agreement (the “Company Disclosure Letter”) (it being agreed that the disclosure of any risk factorinformation in a particular section or subsection of the Company Disclosure Letter shall be deemed disclosure of such documents)information with respect to any other section or subsection of this Agreement to which the relevance of such information is readily apparent on its face), the MLPCompany and Opco LLC (collectively, the “Company Parties hereby”) represent and warrant with respect to themselves and their respective Subsidiaries to PNR,the Parent Parties as follows:

(a)Section 3.1 Organization, General AuthorityStanding and StandingPower.

(a) Each MLPCompany Party and its Subsidiaries is a limited partnership or limited liability company, as the case may be,an entity duly formed,organized, validly existing and in good standing under the Laws of the Statejurisdiction of Delaware. Each MLP Party (i)its organization and has theall requisite limited partnership or limited liability companyentity power and authority to own, lease and lease all ofoperate its properties and assets and to carry on its business as it is now being conducted, (ii)except in the case of any Subsidiary of any Company Party (other than, with respect to the Company, Opco LLC), where the failure to be so organized or in good standing or to have such power or authority, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect. Each Company Party and its Subsidiaries is duly qualified or licensed to do business and is in good standing in each jurisdiction in which the states of the United States of Americawhere its ownership or leasing of property or the conductnature of its business requires it to be so qualified, and (iii) has in effect all federal, state, local, and foreign governmental authorizations and permits necessary for it to own or leasethe ownership, leasing or operation of its properties and assets and to carry on its business as it is now conducted,makes such qualification or licensing necessary, except where the failure to have such power and authority, to be so qualified or licensed or in good standing, individually or in the aggregate, has not had and would not reasonably be expected to have such authorizations and permits in effect would not have a Company Material Adverse Effect on MLP.Effect.

(b)Capitalization. The Company has previously made available to Parent true and complete copies of the Company’s certificate of incorporation (the “Company Charter”) and bylaws (the “Company Bylaws”) and the certificate of formation of Opco LLC and the Opco LLC Agreement, in each case as amended to the date of this Agreement (together with the Company Charter and the Company Bylaws, the “Company Organizational Documents”), and each of the Company Organizational Documents as so made available is in full force and effect. Neither the Company nor Opco LLC is in violation of any provision of the Company Organizational Documents.

(i)Section 3.2 Capital Stock.

(a) The authorized capital stock of the Company consists of 600,000,000 shares of Company Class A Common Stock, 125,000,000 shares of Company Class B Common Stock and 50,000,000 shares of preferred stock, par value $0.01 per share, of the Company (the “Company Preferred Stock”). As of the date hereof, there are 35,713,700 MLPclose of business on October 16, 2020 (the “Measurement Date”), (i) 378,663,211 shares of Company Class A Common Stock (excluding treasury shares) were issued and outstanding (including 672,918 shares subject to outstanding Company Restricted Stock Awards), (ii) 34,201,316 shares of Company Class B Common Stock (excluding treasury shares) were issued and outstanding, (iii) 34,201,316 Opco LLC Units and 34,201,316 shares of Company Class B Common Stock were issued and outstanding and not held by the Company or any of its Subsidiaries, (iv) 378,663,211 Opco LLC Units were issued and outstanding and held by the Company, (v) 746,082 shares of Company Class A Common Stock and no shares of Company Class B Common Stock were

held by the Company in its treasury, (vi) no shares of Company Preferred Stock were issued and outstanding or held by the Company in its treasury, (vii) 18,948,335 shares of Company Class A Common Stock were reserved for issuance pursuant to the Company Plans (of which (A) 2,069,723 shares were subject to outstanding Company RSU Awards and (B) 1,598,332 shares were subject to outstanding Company PRSU Awards (assuming maximum levels of performance are achieved)) and (viii) 34,201,316 shares of Company Class A Common Stock are available for issuance in exchange for Opco LLC Units (together with the corresponding shares of Company Class B Common Stock).

(b) All outstanding shares of capital stock of the Company are, and all such MLP Common Units and the limited partner interests represented thereby wereshares reserved for issuance will be, when issued, duly authorized, and are validly issued, in accordance with the MLP Partnership Agreement,fully paid and arenonassessable and not subject to any preemptive or similar rights (and were not issued in violationrights. No shares of any preemptive or similar rights). Ascapital stock of the date hereof, thereCompany are 99,768 MLP Common Units subject to MLP Phantom Units, which MLP Common Units are issuable under the MLP LTIP. MLP GP is the sole general partner of MLP, owning allowned by any Subsidiary of the Company. All outstanding general partner units in MLP,shares of capital stock and such general partner units wereother voting securities or equity interests of each Subsidiary of the Company have been duly authorized and validly issued and are fully paid, nonassessable and not subject to any preemptive rights. All outstanding shares of capital stock and other voting securities or equity interests of each such Subsidiary (other than Opco LLC) are owned, directly or indirectly, by Opco LLC, free and clear of all pledges, claims, liens, charges, options, rights of first refusal, encumbrances and security interests of any kind or nature whatsoever (including any limitation on voting, sale, transfer or other disposition or exercise of any other attribute of ownership) (collectively, “Liens”), other than transfer restrictions of general applicability as may be provided under the Securities Act or other applicable securities Laws or as set forth in accordance with the MLP Partnership Agreement.Company Organizational Documents.

(ii)(c) As of the date hereof, exceptclose of business on the Measurement Date, neither the Company nor any of its Subsidiaries has outstanding any bonds, debentures, notes or other obligations having the right to vote (or convertible into, or exchangeable or exercisable for, securities having the right to vote) with the stockholders of the Company or such Subsidiary on any matter. Except as set forth above in Section 5.1(b)(i), except for MLP Common Units authorized for issuance under the MLP LTIP 3.2(a) and except for equity securities ownedchanges since the close of business on the Measurement Date resulting from the settlement of Company RSU Awards or Company PRSU Awards, in each case in accordance with their terms as in effect on the Measurement Date or the date of such later issuance, or resulting from any issuance after the date of this Agreement permitted by MLP GP or MLP in Subsidiaries of MLP GP or MLP, (A)Section 5.1(a), there are no partnershipoutstanding: (i) shares of capital stock or other voting securities or equity interests limited liability companyof the Company, (ii) securities of the Company or any of its Subsidiaries convertible into or exchangeable or exercisable for shares of capital stock of the Company or other voting securities or equity interests of the Company or any of its Subsidiaries, (iii) stock appreciation rights, “phantom” stock rights, performance units, interests in or rights to the ownership or earnings of the Company or any of its Subsidiaries or other equity securities of any MLP Partyequivalent or equity-based awards or rights, (iv) subscriptions, options, warrants, calls, commitments, Contracts or other rights to acquire from the Company or any of theirits Subsidiaries, issued or authorized and reserved for issuance, (B) there are no outstanding options, warrants, preemptive rights, subscriptions, calls or other rights, convertible securities, exchangeable securities, agreements or commitmentsobligations of any character obligating any MLP Partythe Company or any of their respectiveits Subsidiaries to issue, transferany shares of capital stock of the Company or sell any partnershipof its Subsidiaries, voting securities, equity interests or other equity interest of such MLP Party or such Subsidiary of an MLP Party or any securities convertible into or exchangeable or exercisable for such partnership interestscapital stock or other voting securities or equity interests or any commitment to authorize, issue or sellof the same or any such equity securities, except pursuant to this Agreement, and (C) there are no contractual obligations of any MLP PartyCompany or any of their respectiveits Subsidiaries or rights or interests described in the preceding clause (iii) or (v) obligations of the Company or any of its Subsidiaries to repurchase, redeem or otherwise acquire any partnership interestsuch securities or to issue, grant, deliver or sell, or cause to be issued, granted, delivered or sold, any such securities.

(d) Except for the Voting Agreements and the Company Organizational Documents, there are no stockholder agreements, voting trusts or other equity interest in such personagreements or understandings to which the Company or any of its Subsidiaries is a party with respect to the holding, voting, registration, redemption, repurchase or disposition of, or that restricts the transfer of, any capital stock or other voting securities or equity interests of the Company or any such securities or agreements listed in clause (B) of this sentence.

(c)Equity Interests in other Entities. Other than ownership of its Subsidiaries, MLP does not own beneficially, directlySubsidiaries.

(e) Section 3.2(e) of the Company Disclosure Letter sets forth a true and complete list of all directors and officers of the Company that are holders (“D&O Award Holders”), as of the close of business on the Measurement Date, of outstanding Company RSU Awards, Company PRSU Awards, Company Restricted Stock Awards and other similar rights to purchase or indirectly, any equity securitiesreceive shares of Company Class A Common Stock or similar interestsrights granted under the Company Plans or otherwise (collectively, “Company Stock Awards”), indicating as applicable, with respect to each such D&O Award Holder, (i) any outstanding Company Stock Award held by

such D&O Award Holder, (ii) the type of award granted to such D&O Award Holder, (iii) the number of shares of Company Class A Common Stock subject to such Company Stock Award, (iv) the name of the plan under which such Company Stock Award was granted, (v) the date of grant, exercise or purchase price, vesting schedule, payment schedule (if different from the vesting schedule) and expiration date thereof, and (vi) whether (and to what extent) the vesting of such Company Stock Award will be accelerated or otherwise adjusted in any personway or any interestother terms will be triggered or otherwise adjusted in any way by the consummation of the Transactions or by the termination of employment or engagement or change in position of such D&O Award Holder following or in connection with the Mergers.

(f) Section 3.2(f) of the Company Disclosure Letter sets forth a partnership or joint venturetrue and complete list of any kind. MLP ownsthe name of each holder of Opco LLC Units and the number of Opco LLC Units held by such interestsholder, in its Subsidiarieseach case, as of the Measurement Date. All of the Opco LLC Units held by the Company are held free and clear of all Liens, except those existingother than transfer restrictions of general applicability as may be provided under the Securities Act or arisingother applicable securities Laws or as set forth in the Opco LLC Agreement. The rate at which each Opco LLC Unit (together with one share of Company Class B Common Stock) may be exchanged for shares of Company Class A Common Stock pursuant to the applicable governing documents of such entities.

(d)Power, Authority and Approvals of Transactions; Special Approval and Recommendations.

(i) Eachterms of the MLP PartiesOpco LLC Agreement is one for one.

Section 3.3 Subsidiaries. Section 3.3 of the Company Disclosure Letter sets forth a true and complete list of each Subsidiary of the Company, including its jurisdiction of incorporation or formation. Except for the capital stock of, or other equity or voting interests in, its Subsidiaries or any Oil and Gas Properties, the Company does not own, directly or indirectly, any equity, membership interest, partnership interest, joint venture interest, or other equity or voting interest in, or any interest convertible into, exercisable or exchangeable for any such equity, membership interest, partnership interest, joint venture interest, or other equity or voting interest in, nor is it under any obligation to provide funds to, make any material loan, capital contribution, guarantee, credit enhancement or other material investment in, or assume any liability or obligation of, any Person.

Section 3.4 Authority.

(a) Each Company Party has the requisite limited partnershipall necessary corporate or limited liability company power and authority to execute, deliver and perform its obligations under this Agreement and, subject to the MLP Unitholderreceipt of the Company Stockholder Approval, to consummate the Merger Transactions. SubjectThe execution, delivery and performance of this Agreement by the Company Parties and the consummation by the Company Parties of the Transactions have been duly authorized by all necessary corporate or limited liability company action on the part of the Company Parties and no other corporate or limited liability company proceedings on the part of the Company Parties are necessary to approve this Agreement or to consummate the Transactions, subject, in the case of the consummation of the Integrated Mergers, to the MLP Unitholder Approval,approval and adoption of this Agreement and the Merger Transactions have been authorized by all necessary limited partnership or limited liability company, as applicable, action by eachthe holders of at least a majority of the MLP Parties.outstanding shares of Company Class A Common Stock and Company Class B Common Stock, voting together as one class (the “Company Stockholder Approval”). This Agreement has been duly executed and delivered by each of the MLPCompany Parties and, assuming the due authorization, execution and delivery by each Parent Party, constitutes a valid and binding agreementobligation of such parties (assuming the due execution and delivery of this Agreement by, or on behalf of, the Other Parties),each Company Party, enforceable against itsuch Company Party in accordance with its terms (except as suchto the extent that enforceability may be limited by applicable bankruptcy, insolvency, moratorium, reorganization moratorium, fraudulent transfer andor similar Laws affecting the enforcement of general applicability relating to or affecting creditors’ rights generally or by general principles of equity principles (regardless of whether such enforceability is considered in a proceeding in equity or at law)(collectively, “Creditors’ Rights”)).

(ii)(b) The MLP GPCompany Board, has authorized the MLP GP Conflicts Committee to, among other things, assumeat a meeting duly called and exerciseheld at which all lawfully delegable powersdirectors of the MLP GP Board relating to PNR’s proposal to acquire all of the MLP Common Units not owned by PNR USA or any alternative transaction thereto, that the MLP GP Conflicts Committee deems to be necessary, appropriate or advisableCompany were present, duly and in the best interests of the MLP Unaffiliated Unitholders and the MLP, and to take any and all actions and to make any and all decisions, findings or determinations that may appear to the MLP GP Conflicts Committee to be necessary, appropriate or advisable and in the best interests of the MLP Unaffiliated Unitholders and the MLP. The MLP GP Conflicts Committee has unanimously approved this Agreement and the Merger Transactions and has determinedadopted resolutions (i) declaring that this Agreement and the Merger Transactions (including the Integrated Mergers) are fair and reasonable to, and in the best interests of, the MLP Unaffiliated UnitholdersCompany and MLP (the “MLP GP Conflicts Committee Approval”). Such action by the MLP GP Conflicts Committee constituted “Special Approval” (as defined in the MLP Partnership Agreement) ofCompany Stockholders, (ii) approving and declaring advisable this Agreement and the Merger Transactions under(including the MLP Partnership Agreement. The MLP GP Conflicts Committee has recommended to the MLP GP BoardIntegrated Mergers), and (iii) recommending that the MLP GP Board make the same approvalCompany Stockholders approve and determination as the MLP GP Conflicts Committee. The MLP GP Board has approvedadopt this Agreement and the Merger Transactions (such approval being unanimous among(including the independent directors, withIntegrated Mergers), which resolutions have not been subsequently rescinded, modified or withdrawn in any way, except as may be permitted by Section 5.2.

(c) The Board of Directors of the non-independent directorsCompany, on behalf of the MLP GP Board recusing themselves fromCompany, in its capacity as the consideration and vote on such approval) andmanaging member of Opco LLC, has determinedadopted resolutions (i) determining that this Agreement and the Merger Transactions

(including the Opco Merger) are fair and reasonable to, and in the best interests of, the MLP Unaffiliated UnitholdersOpco LLC and MLP (the “MLP GP Board Approval”). The MLP GP Board has caused the MLP GP to approveits members and (ii) approving and declaring advisable this Agreement and the Merger Transactions and has directed that this Agreement(including the Opco Merger), which resolutions have not been subsequently rescinded, modified or withdrawn in any way, except as may be submitted to the MLP Unitholders at a meeting of such holders (including any adjournment or postponement thereof, the “MLP Meeting”) for the purpose of approving this Agreementpermitted by Section 5.2.

(d) The Company Stockholder Approval and the Merger Transactions, andOpco Unitholder Approval are the MLP GP Conflicts Committee and the MLP GP Board have recommended thatonly votes of the holders of MLP Common Unitsany class or series of the Company’s or Opco LLC’s capital stock or other securities required in connection with the consummation of the Transactions. No vote of the holders of any class or series of the Company’s or Opco LLC’s capital stock or other securities is required in favorconnection with the consummation of any of the Transactions other than the First Company Merger and the Opco Merger.

Section 3.5 No Conflict; Consents and Approvals.

(a) The execution, delivery and performance of this Agreement by each of the Company Parties do not, and the Mergerconsummation of the Transactions at the MLP Meeting.

(e)No Violations(with or Defaults. Subjectwithout notice or lapse of time, or both) will not, conflict with, or result in any violation or breach of, or default (with or without notice or lapse of time, or both) under, or give rise to a right of, or result in, termination, cancellation, modification or acceleration of any obligation or to the declarationloss of effectivenessa material benefit under, or result in the creation of any Lien (other than Permitted Liens) in or upon any of the Registration Statement, requiredproperties, assets or rights of either Company Party or any of its Subsidiaries under, or give rise to any increased, additional, accelerated or guaranteed rights or entitlements under, or require any consent, waiver or approval of any Person pursuant to, any provision of (i) the Company Organizational Documents, (ii) any material bond, debenture, note, mortgage, indenture, guarantee, license, lease, purchase or sale order or other contract, commitment, agreement, instrument, obligation, arrangement, understanding, undertaking, permit, concession or franchise, whether written or oral (excluding, for the avoidance of doubt, all Oil and Gas Leases, Rights-of-Way and all other instruments constituting a Party’s chain of title to the Oil and Gas Properties or Rights-of-Way) (each, including all amendments thereto, a “Contract”) to which either Company Party or any of its Subsidiaries is a party or by which either Company Party or any of its Subsidiaries or any of their respective properties or assets may be bound or (iii) subject to the governmental filings underand other matters referred to in Section 3.5(b), any federal, and state, securities laws and withlocal or foreign law (including common law), statute, ordinance, rule, code, regulation, order, judgment, injunction, decree or other legally enforceable requirement (“Law”) or any rule or regulation of the NYSE assumingapplicable to the Company Parties or any of their Subsidiaries or by which the Company Parties or any of their Subsidiaries or any of their respective properties or assets may be bound, except as, in the case of clauses (ii) and (iii), as individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect (provided, that clause (D) of the definition of “Material Adverse Effect” shall be disregarded for purposes of this Section 3.5(a)).

(b) No consent, approval, order or authorization of, or registration, declaration, filing with or notice to, any federal, state, local or foreign government or subdivision thereof or any other consents and approvals contemplatedgovernmental, administrative, judicial, legislative, executive, regulatory, instrumentality, agency, commission or body (each, a “Governmental Entity”) is required by Section 5.1(f) and Article VII are obtained and assumingor with respect to the consents, waivers and approvals specifiedCompany Parties or any of their Subsidiaries in Section 6.10(a) are obtained,connection with the execution, delivery and performance of this Agreement andby the Company Parties or the consummation by the Company Parties of the Transactions, except for (i) the filing of the pre-merger notification report under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”), (ii) such filings and reports as may be required pursuant to the applicable requirements of the Securities Act of 1933, as amended (the “Securities Act”), the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and any other applicable state or federal securities, takeover and “blue sky” Laws, (iii) the filing of the Certificates of Merger Transactionswith the Delaware Secretary of State as required by the MLP Parties doDGCL and, to the extent applicable, the DLLCA, (iv) any filings and approvals required under the rules and regulations of the NYSE and (v) such other consents, approvals, orders, authorizations, registrations, declarations, filings or notices the failure of which to be obtained or made, individually or in the aggregate, have not had and will not (i) except as couldwould not reasonably be expected to have a Company Material Adverse Effect on MLP, (x) constitute a breach or violation(provided, that clause (D) of or result in a default (or an event that, with notice or lapsethe definition of time or both, would become a default) under, or result in the termination or in a right“Material Adverse Effect” shall be disregarded for purposes of termination or cancellation of, or accelerate the performance required by, any note, bond, mortgage, indenture, deed of trust, license, franchise, lease, contract, agreement, joint venture or other instrument or obligation to which any MLP Party or any of its respective Subsidiaries is a party or by which such MLP Party or any of its Subsidiaries or properties is subject or bound, (y) contravene or conflictthis Section 3.5(b)).

Section 3.6 SEC Reports; Financial Statements.

(a) The Company has filed with or constitute a material violation of any provision of any Law binding upon or applicablefurnished to the MLP PartiesSecurities and Exchange Commission (the “SEC”) on a timely basis all forms, reports, schedules, statements and other documents required to be filed with or anyfurnished to the SEC by the Company on or after January 1, 2019 (all such documents, together with all exhibits and schedules to the foregoing materials and all information incorporated therein by reference, the “Company SEC Documents”). As of their respective Subsidiaries,filing dates (or, if amended or (z) result insuperseded by a filing prior to the creation of any Lien on any of the assets of the MLP Parties or

any of their respective Subsidiaries’ assets, (ii) constitute a breach or violation of, or a default under, the MLPPartnership Agreement, the MLP Certificate of Limited Partnership, the MLP GP LLC Agreement or the MLP GP Certificate of Formation, or (iii) cause the Merger Transactions to be subject to Takeover Laws.

(f)Consents and Approvals. No consents or approvals of, or filings or registrations with, any Governmental Authority are necessary in connection with (i) the execution and delivery by the MLP Partiesdate of this Agreement, or (ii)then on the consummation by the MLP Parties of the Merger Transactions, except for (A) the filing of any required applications or notices with any state or foreign agencies of competent jurisdiction and approvaldate of such applications or notices, (B)filing), the filing with theCompany SEC of a proxy statement relating to the matters to be submitted tothe MLP Unitholders at the MLP Meeting and a registration statement on Form S-4 with respect to the issuance of shares by PNR of New Common Stock in connection with the Merger (such registration statement and any amendments or supplements thereto, the “Registration Statement,” and the proxy statement/prospectus included in such Registration Statement and any amendments or supplements thereto, the “Proxy Statement/Prospectus”), (C) the filing of the Certificate of Merger with the Secretary of State of the State of Delaware, (D) any consents, authorizations, approvals, filings or exemptions in connection with compliance with the rules of the NYSE, (E) such filings and approvals as may be required to be made or obtained under the securities or “Blue Sky” laws of various states in connection with the issuance of shares of New Common Stock in connection with the Merger pursuant to this Agreement, and (F) such other consents, authorizations, approvals, filings or registrations the absence or unavailability of which could not, either individually or in the aggregate, reasonably be expected to have a Material Adverse Effect on MLP.

(g)Financial Reports and the MLP SEC Documents. The MLP SEC Documents, as of their respective dates, (i) complied in all material respects as to form with the applicable requirements of the Securities Act, or the Exchange Act and the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”), including, in each case, the rules and regulations promulgated thereunder, and none of the Company SEC Documents contained, when filed (or, if amended prior to the date of this Agreement, as of the date of such amendment with respect to those disclosures that are amended), any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading.

(b) The financial statements (including the related notes and schedules thereto) included (or incorporated by reference) in the Company SEC Documents (i) have been prepared in a manner consistent with the books and records of the Company and its Subsidiaries, (ii) have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”), applied on a consistent basis during the periods involved (except as may be indicated in the notes thereto or, in the case mayof unaudited statements, as permitted by Rule 10-01 of Regulation S-X of the SEC), (iii) comply as to form in all material respects with the published rules and regulations of the SEC with respect thereto and (iv) fairly present in all material respects the consolidated financial position of the Company and its Subsidiaries as of the dates thereof and their respective consolidated results of operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to normal and recurring year-end audit adjustments), all in accordance with GAAP and the applicable rules and regulations promulgated by the SEC. Since January 1, 2020, the Company has not made any change in the accounting practices or policies applied in the preparation of its financial statements, except as required by GAAP, SEC rule or policy or applicable Law. The books and records of the Company and its Subsidiaries have been, and are being, maintained in all material respects in accordance with GAAP (to the extent applicable) and any other applicable legal and accounting requirements and reflect only actual transactions.

(c) The Company has established and maintains disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Such disclosure controls and procedures are designed to ensure that information relating to the Company, including its consolidated Subsidiaries, required to be disclosed in the Company’s periodic and current reports under the Exchange Act is made known to the Company’s chief executive officer and its chief financial officer by others within those entities to allow timely decisions regarding required disclosures as required under the Exchange Act. The chief executive officer and chief financial officer of the Company have evaluated the effectiveness of the Company’s disclosure controls and procedures and, to the extent required by applicable Law, presented in any applicable Company SEC Document that is a report on Form 10-K or Form 10-Q, or any amendment thereto, his or her conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by such report or amendment based on such evaluation.

(d) The Company and its Subsidiaries have established and maintain a system of internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) which is effective in providing reasonable assurance regarding the reliability of the Company’s financial reporting and the preparation of the Company’s financial statements for external purposes in accordance with GAAP. The Company has disclosed, based on its most recent evaluation of the Company’s internal control over financial reporting prior to the date hereof, to the Company’s auditors and audit committee (i) any significant deficiencies and material weaknesses in the design or operation of the Company’s internal control over financial reporting which would reasonably be expected to adversely affect the Company’s ability to record, process, summarize and report financial information and (ii) didany fraud, whether or not material, that involves management or other employees who have a significant role in the Company’s internal control over financial reporting.

(e) Since January 1, 2020, (i) neither the Company nor any of its Subsidiaries nor, to the knowledge of the Company, any director, officer, employee, auditor, accountant or representative of the Company or any of its Subsidiaries has received or otherwise had or obtained knowledge of any material complaint, allegation, assertion or claim, whether written or oral, regarding the accounting or auditing practices, procedures, methodologies or methods of the Company or any of its Subsidiaries or their respective internal accounting controls, including any material complaint, allegation, assertion or claim that the Company or any of its Subsidiaries has engaged in questionable accounting or auditing practices and (ii) no attorney representing the Company or any of its Subsidiaries, whether or not employed by the Company or any of its Subsidiaries, has reported evidence of a material violation of securities Laws, breach of fiduciary duty or similar violation by the Company or any of its Subsidiaries or any of their respective officers, directors, employees or agents to the Company Board or any committee thereof or to any director or officer of the Company or any of its Subsidiaries.

(f) As of the date of this Agreement, there are no outstanding or unresolved comments in the comment letters received from the SEC staff with respect to the Company SEC Documents. To the knowledge of the Company, none of the Company SEC Documents is subject to ongoing review or outstanding SEC comment or investigation.

(g) Neither the Company nor any of its Subsidiaries is a party to, or has any commitment to become a party to, any joint venture, off balance sheet partnership or any similar Contract (including any Contract or arrangement relating to any transaction or relationship between or among the Company and any of its Subsidiaries, on the one hand, and any unconsolidated Affiliate, including any structured finance, special purpose or limited purpose entity or Person, on the other hand, or any “off balance sheet arrangements” (as defined in Item 303(a) of Regulation S-K under the Exchange Act)), where the result, purpose or intended effect of such Contract is to avoid disclosure of any material transaction involving, or material liabilities of, the Company or any of its Subsidiaries in the Company’s or such Subsidiary’s published financial statements or other Company SEC Documents.

(h) The Company is in compliance in all material respects with (i) the provisions of the Sarbanes-Oxley Act and (ii) the rules and regulations of the NYSE, in each case, that are applicable to the Company.

(i) No Subsidiary of the Company is required to file any form, report, schedule, statement or other document with the SEC.

Section 3.7 No Undisclosed Liabilities. Neither the Company nor any of its Subsidiaries has any liabilities or obligations of any nature, whether accrued, absolute, contingent or otherwise, known or unknown, whether due or to become due and whether or not required to be recorded or reflected on a balance sheet under GAAP, except (a) to the extent accrued or reserved against in the unaudited consolidated balance sheet of the Company and its Subsidiaries as of June 30, 2020 included in the Quarterly Report on Form 10-Q filed by the Company with the SEC on August 6, 2020 (including the notes thereto) (without giving effect to any amendment thereto filed on or after the date hereof), (b) for liabilities and obligations incurred in the ordinary course of business consistent with past practice since June 30, 2020, (c) liabilities under this Agreement or incurred in connection with the Transactions and (d) liabilities that, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect.

Section 3.8 Certain Information. None of the information supplied or to be supplied by or on behalf of the Company Parties for inclusion or incorporation by reference in (a) the Form S-4 will, at the time the Form S-4 becomes effective under the Securities Act, contain any untrue statement of a material fact or omit to state aany material fact required to be stated therein or necessary to make the statements made therein, in the light of the circumstances under which they wereare made, not misleading or (b) the Joint Proxy Statement will, at the date it is first mailed to Company Stockholders and to Parent Stockholders and at the time of the Company Stockholders Meeting and the Parent Stockholders Meeting, contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they are made, not misleading. The historical financial statementsSubject to the first sentence of MLP and its consolidated subsidiaries contained in or incorporated by reference into any MLP SEC Document (includingSection 4.8, the related notes and schedules thereto) (A)Joint Proxy Statement will comply as to form in all material respects with the applicable requirementsprovisions of the Securities Act and the Exchange Act and (B) fairly presentthe

rules and regulations thereunder. Notwithstanding the financial position, resultsforegoing, no Company Party makes any representation or warranty with respect to statements included or incorporated by reference in the Form S-4 or the Joint Proxy Statement based on information supplied by or on behalf of operations, partners’ equity and cash flows, as the case may be,Parent Parties specifically for inclusion or incorporation by reference therein.

Section 3.9 Absence of MLPCertain Changes or entities to which they relateEvents. Since June 30, 2020, (a) as of the datesdate of this Agreement, the Company and its Subsidiaries have, in all material respects, conducted their businesses only in the ordinary course consistent with past practice; (b) there has not been any change, event or development or prospective change, event or development that, individually or in the aggregate, has had or would reasonably be expected to have a Company Material Adverse Effect; (c) as of the date of this Agreement, neither the Company nor any of its Subsidiaries has suffered any material loss, damage, destruction or other casualty affecting any of its material properties or assets, whether or not covered by insurance; and (d) as of the date of this Agreement, none of the Company or any of its Subsidiaries has taken any action that, if taken after the date of this Agreement, would constitute a breach of any of the covenants set forth in Sections 5.1(a)(i), (ii), (iv), (v), (vi), (vii), (viii), (xii), (xix) or (xxiii) (solely as it relates to the foregoing Sections 5.1(a)(i), (ii),(iv), (v), (vi), (vii), (viii), (xii) or (xix)).

Section 3.10 Litigation. There is no action, suit, claim, arbitration, investigation, inquiry, grievance or other proceeding (each, an “Action”) pending or, to the knowledge of the Company, threatened against or affecting the Company or any of its Subsidiaries, any of their respective properties or assets, or any present or former officer, director or employee of the Company or any of its Subsidiaries in such individual’s capacity as such, other than any Action that, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect. Neither the Company nor any of its Subsidiaries nor any of their respective properties or assets is subject to any outstanding judgment, order, injunction, rule or decree of any Governmental Entity that, individually or in the aggregate, has had or would reasonably be expected to have a Company Material Adverse Effect.

Section 3.11 Compliance with Laws. The Company and each of its Subsidiaries are, and since January 1, 2019, have been, in compliance with all Laws (other than compliance with (i) ERISA and other Laws applicable to Company Plans and other employee benefit matters, which is addressed solely in Section 3.12, (ii) Environmental Laws, which is addressed solely in Section 3.14 and (iii) Tax Laws, which is addressed solely in Section 3.15) applicable to their businesses, operations, properties or assets, except where any non-compliance, individually or the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect. None of the Company or any of its Subsidiaries has received, since January 1, 2019, a notice or other written communication alleging or relating to a possible violation of any Law applicable to their businesses, operations, properties or assets, except for such violations that, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect. The Company and each of its Subsidiaries have in effect all permits, licenses, variances, exemptions, approvals, authorizations, consents, operating certificates, franchises, orders and approvals (collectively, “Permits”) of all Governmental Entities necessary for them to own, lease or operate their properties and assets and to carry on their businesses and operations as now conducted, and, since January 1, 2019, there has occurred no violation of, default (with or without notice or lapse of time or both) under or event giving to others any right of revocation, non-renewal, adverse modification or cancellation of, with or without notice or lapse of time or both, any such Permit, nor would any such revocation, non-renewal, adverse modification or cancellation result from the consummation of the Transactions, except where the failure to have in effect such Permits or such violation or default or other event, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect.

Section 3.12 Benefit Plans.

(a) None of the Company, any of its Subsidiaries or any member of their Controlled Group has ever sponsored, maintained, contributed to or been required to contribute to or incurred any liability (contingent or

otherwise) with respect to: (i) a “multiemployer plan” (within the meaning of ERISA section 3(37)), (ii) an “employee pension benefit plan,” within the meaning of Section 3(2) of ERISA (“Pension Plan”) that is subject to Title IV of ERISA or Section 412 of the Code, (iii) a Pension Plan which is a “multiple employer plan” as defined in Section 413 of the Code, or (iv) a “funded welfare plan” within the meaning of Section 419 of the Code.

(b) Section 3.12(a) of the Company Disclosure Letter contains a true and complete list of each “employee benefit plan” (within the meaning of section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), whether or not subject to ERISA), “multiemployer plan” (within the meaning of ERISA section 3(37)), and all stock purchase, stock option, phantom stock or other equity-based plan, severance, employment, collective bargaining, change-in-control, fringe benefit, bonus, incentive, deferred compensation, supplemental retirement, health, life, or disability insurance, dependent care and all other employee benefit and compensation plans, agreements, programs, policies or other arrangements, whether or not subject to ERISA (including any funding mechanism therefor now in effect or required in the future as a result of the Transactions or otherwise), whether written or oral, under which any current or former employee, director or consultant of the Company or its Subsidiaries (or any of their dependents) has any present or future right to compensation or benefits or that the Company or its Subsidiaries sponsors or maintains, is making contributions to or has any present or future liability or obligation (contingent or otherwise) or with respect to which it is otherwise bound (collectively, the “Company Plans”). The Company has provided or made available to Parent a current, accurate and complete copy of each Company Plan, or if such Company Plan is not in written form, a written summary of all of the material terms of such Company Plan. With respect to each Company Plan, the Company has furnished or made available to Parent a current, accurate and complete copy of, to the extent applicable: (i) any related trust agreement or other funding instrument, (ii) the most recent determination letter of the Internal Revenue Service (the “IRS”), (iii) the most recent summary plan description, summary of material modifications since the date of the most recent summary plan description, and other similar material written communications (or a written description of any material oral communications) since January 1, 2019 to the employees of the Company or its Subsidiaries concerning the extent of the benefits provided thereunder, and (iv) for the periodsthree most recent years (A) the Form 5500 and attached schedules, (B) audited financial statements, and (C) actuarial valuation reports.

(c) With respect to the Company Plans:

(i) each Company Plan complies in all material respects in form and in operation with its terms and the applicable provisions of ERISA and the Code and all other applicable legal requirements;

(ii) no non-exempt prohibited transaction, as described in Section 406 of ERISA or Section 4975 of the Code has occurred with respect to any Company Plan, and all contributions required to be made under the terms of any Company Plan have been timely made;

(iii) each Company Plan intended to be qualified under Section 401(a) of the Code has received a favorable determination, advisory and/or opinion letter, as applicable, from the IRS that it is so qualified and nothing has occurred since the date of such letter that would reasonably be expected to cause the loss of the sponsor’s ability to rely upon such letter, and nothing has occurred that would reasonably be expected to result in the loss of the qualified status of such Company Plan;

(iv) there is no Action (including any investigation, audit or other administrative proceeding) by the Department of Labor, the Pension Benefit Guaranty Corporation (the “PBGC”), the IRS or any other Governmental Entity or by any plan participant or beneficiary pending, or to the knowledge of the Company, threatened, relating to the Company Plans, any fiduciaries thereof with respect to their duties to the Company Plans or the assets of any of the trusts under any of the Company Plans (other than routine claims for benefits) nor are there facts or circumstances that exist that could reasonably give rise to any such Actions;

(v) none of the Company, its Subsidiaries or any member of their Controlled Group has incurred any direct or indirect liability under ERISA, the Code or other applicable Laws in connection with the termination of, withdrawal from or failure to fund, any Company Plan or other retirement plan or arrangement, and no fact or event exists that would reasonably be expected to give rise to any such liability;

(vi) the Company and its Subsidiaries do not maintain any Company Plan that is a “group health plan” (as such term is defined in Section 5000(b)(1) of the Code) that has not been administered and operated in all material respects in compliance with the applicable requirements of Section 601, et seq. of ERISA and Section 4980B(b) of the Code or other applicable similar Law regarding health care coverage continuation (collectively “COBRA”) and the Patient Protection and Accountability Act, as amended (the “PPACA”), and the Company and its Subsidiaries are not subject to any liability, including additional contributions, fines, assessable payments, penalties or loss of Tax deduction as a result of such administration and operation;

(vii) none of the Company Plans currently provides, or reflects or represents any liability to provide post-termination or retiree welfare benefits to any Person for any reason, except as may be required by COBRA, and none of the Company, its Subsidiaries or any members of their Controlled Group has any liability to provide post-termination or retiree welfare benefits to any Person or ever represented, promised or contracted to any employee or former employee of the Company (either individually or to the Company’s employees as a group) or any other Person that such employee(s) or other Person would be provided with post-termination or retiree welfare benefits, except to the extent required by statute or except with respect to a contractual obligation to reimburse any premiums such Person may pay in order to obtain health coverage under COBRA;

(viii) each Company Plan is subject exclusively to United States Law; and

(ix) the execution and delivery of this Agreement and the consummation of the Transactions will not, either alone or in combination with any other event, (A) entitle any current or former employee, officer, director or consultant of the Company or any of its Subsidiaries to severance pay, unemployment compensation or any other similar termination payment, or (B) accelerate the time of payment or vesting, or increase the amount of or otherwise enhance any benefit due any such employee, officer, director or consultant.

(d) Neither the Company nor any of its Subsidiaries is a party to any agreement, contract, arrangement or plan (including any Company Plan) that may reasonably be expected to result, separately or in the aggregate, in connection with the Transactions (either alone or in combination with any other events), in the payment of any “parachute payments” within the meaning of Section 280G of the Code. There is no agreement, plan or other arrangement to which any of the Company or any of its Subsidiaries is a party or by which any of them is otherwise bound to compensate any Person in respect of Taxes or other liabilities incurred with respect to Section 409A or 4999 of the Code.

(e) Each Company Plan that constitutes in any part a “nonqualified deferred compensation plan” within the meaning of Section 409A(d)(1) of the Code (a “Nonqualified Deferred Compensation Plan”) subject to Section 409A of the Code has been operated and maintained in all material respects in compliance with Section 409A of the Code and the regulations and other administrative guidance promulgated thereunder (the “409A Authorities”).

Section 3.13 Labor Matters.

(a) As of the date hereof, no employee of the Company or any of its Subsidiaries is covered by an effective or pending collective bargaining agreement or similar labor agreement or represented by a labor union or similar representative. To the knowledge of the Company, there has not been any activity since January 1, 2019 on behalf of any labor union, labor organization or similar employee group to organize any employees of the Company or any of its Subsidiaries. There are no (i) unfair labor practice charges or complaints against the Company or any of its Subsidiaries pending before the National Labor Relations Board or any other labor relations tribunal or authority and to the knowledge of the Company no such financial statements relate,representations, claims or petitions are threatened, (ii) representation claims or petitions pending before the National Labor Relations Board or any other labor relations tribunal or authority or (iii) grievances or pending arbitration proceedings against the Company or any of its Subsidiaries that arose out of or under any collective bargaining agreement, in each case, except such matters as, individually or in accordancethe aggregate, have not been and would not reasonably be expected to be material to the Company and its Subsidiaries, taken as a whole. Since January 1, 2019, there has not been, and as of the date of this Agreement there is not pending or, to the knowledge of the Company, threatened, any labor dispute, work stoppage, labor strike or lockout against the Company or any of its Subsidiaries by its employees.

(b) The Company and its Subsidiaries are in compliance in all respects with U.S. generally accepted accounting principles consistently appliedall Laws respecting employment and employment practices, terms and conditions of employment, collective bargaining, disability, immigration, health and safety, wages, hours and benefits, non-discrimination in employment, overtime classification, classification of employees and independent contractors, workers’ compensation and the collection and payment of withholding and/or payroll Taxes and similar Taxes, except where such noncompliance, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect. During the preceding three years, (i) neither the Company nor any of its Subsidiaries has effectuated a “plant closing” (as defined in the Worker Adjustment Retraining and Notification Act of 1988, as amended (the “WARN Act”)) affecting any site of employment or one or more facilities or operating units within any site of employment or facility, (ii) there has not occurred a “mass layoff” (as defined in the WARN Act) in connection with the Company or any of its Subsidiaries affecting any site of employment or one or more facilities or operating units within any site of employment or facility and (iii) neither the Company nor any of its Subsidiaries has engaged in layoffs or employment terminations sufficient in number to trigger application of any similar state, local or foreign Law.

(c) With respect to any current or former employee, officer, consultant or other service provider of the Company, there are no actions against the Company or any of its Subsidiaries pending, or to the Company’s knowledge, threatened to be brought or filed, in connection with the employment or engagement of any current or former employee, officer, consultant or other service provider of the Company, including any claim relating to employment discrimination, harassment, retaliation, equal pay, employment classification or any other employment related matter arising under applicable Laws, except where such action, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect.

(d) Except with respect to any Company Plan (which subject is addressed in Section 3.12 above), the execution and delivery of this Agreement and the consummation of the Transactions will not result in any breach or violation of, or cause any payment to be made under, any applicable Laws respecting labor and employment or any collective bargaining agreement to which the Company or any of its Subsidiaries is a party.

Section 3.14 Environmental Matters. Except for those matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect:

(a) Each of the Company and its Subsidiaries (i) is and, for the past five years, has been in compliance with applicable Environmental Laws, including with respect to all Permits required under Environmental Laws for the conduct of its business (“Environmental Permits”), and (ii) has received all Environmental Permits. Such Environmental Permits were validly issued and are in full force and effect, and all applications, notices or other documents have been timely filed to effect timely renewal, issuance or reissuance of such Environmental Permits. To the knowledge of the Company, all Environmental Permits are expected to be issued or reissued on a timely basis on such terms and conditions as would reasonably be expected to enable the Company and its Subsidiaries to continue to conduct their operations in a manner substantially similar to the manner in which such operations are presently conducted.

(b) No Environmental Claim is pending or, to the knowledge of the Company, threatened against either the Company or any of its Subsidiaries. Neither the Company nor any of its Subsidiaries has received written notice of any Environmental Claim against any Person whose liability for the Environmental Claim has been retained or assumed either contractually or by operation of Law by the Company or any of its Subsidiaries.

(c) There have been no Releases of Hazardous Materials at any property currently or, to the knowledge of the Company, formerly owned, operated or otherwise used by the Company or any of its Subsidiaries or, to the knowledge of the Company, by any predecessors of the Company or of any Subsidiary of the Company, which Releases have resulted or would reasonably be expected to result in liability to the Company or its Subsidiaries under Environmental Law. Neither the Company nor any of its Subsidiaries has handled, stored, transported, disposed of, arranged for or permitted the disposal of, or Released any Hazardous Materials in a manner that has resulted or would reasonably be expected to result in liability to the Company or its Subsidiaries under Environmental Law.

(d) There have been no environmental investigations, studies, audits or other analyses conducted during the periods involved, exceptpast five years by or on behalf of, or that are in each case as may be noted therein, subjectthe possession of the Company or its Subsidiaries addressing material environmental matters with respect to normal year-end audit adjustmentsany property owned, operated, or otherwise used by any of them that have not been delivered or otherwise made available to Parent prior to the date hereof.

(e) For purposes of this Agreement:

(i) “Environment” means any (A) air (whether ambient outdoor or indoor), (B) surface water, (C) drinking water, (D) groundwater, (E) wetland, (F) land surface, (G) subsurface strata, (H) soil, (I) sediment, (J) plant or animal life, (K) any other natural resources and (L) the sewer and septic systems servicing real property or physical buildings or structures, in the case of unaudited statements.clause (L), owned by the Company or its Subsidiaries, in the case of the representations and warranties set forth in Article III, or Parent and its Subsidiaries, in the case of the representations and warranties set forth in Article IV.

(h)Absence(ii) “Environmental Claim” means, with respect to any Person, any claim, cause of Undisclosed Liabilitiesaction, suit, proceeding, investigation, notice, demand letter or subpoena by any other Person alleging potential liability (including potential liability for investigatory costs, cleanup or remediation costs, governmental or third party response costs, natural resource damages, property damage, personal injuries, fines or penalties) based on or resulting from (A) the presence or Release of any Hazardous Materials at any location, whether or not owned or operated by such Person or any of its Subsidiaries or (B) any violation of any Environmental Law.

(iii) “Environmental Law” means any Law or any binding agreement, memorandum of understanding or consent order issued or entered by or with any Governmental Entity or Person relating to: (A) protection of the Environment, (B) protection of human health and safety, to the extent related to exposure to any Hazardous Materials or (C) the handling, use, labeling, processing, storage, treatment, disposal, transport, Release, threatened Release, investigation, removal or remediation of any Hazardous Materials.

(iv) “Hazardous Materials” means any material or waste that is regulated under or subject to any Environmental Law, including toxic mold, petroleum or any fraction thereof, natural gas, natural gas liquids, asbestos or asbestos-containing material, polychlorinated biphenyls, per- and poly fluoroalkyl substances, lead paint, insecticides, fungicides, rodenticides, pesticides and herbicides.

(v) “Release” means any release, spill, emission, escape, leak, pumping, injection, emptying, pouring, dumping, deposit, disposal (including the abandonment or discarding of barrels, containers or other receptacles containing Hazardous Materials), discharge, dispersal, or leaching or migration into the Environment.

Section 3.15 Taxes.

(a) Except as, disclosedindividually or in the audited financial statementsaggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect:

(i) (A) all Tax Returns required by applicable Law to be filed by or on behalf of the Company or any of its Subsidiaries have been prepared and timely filed in accordance with all applicable Laws (after giving effect to any extensions of time in which to make such filings), (B) any and all Taxes due and payable by the Company and its Subsidiaries have been paid in full, (C) the Company and its Subsidiaries have withheld and paid all Taxes required to have been withheld and paid and (D) as of the time of filing, all such Tax Returns were true and complete in all material respects (other than, in the case of clause (A), (B) or (C) hereof, with respect to any Taxes or Tax Returns (or notes thereto)positions taken therein) which are being contested, or for which any position has been taken, in good faith and for which adequate reserves are reflected on the most recent balance sheet of the Company included in MLP’s Annual Report on Form 10-Kthe Company SEC Documents, as adjusted for the year ended December 31, 2012, andoperations in the financial statements (or notes thereto)ordinary course of business consistent with past practice since the date of such balance sheet);

(ii) there are no Liens for Taxes on any assets or properties of the Company or any of its Subsidiaries, except for statutory Liens for Taxes not yet delinquent or being contested in good faith (and for which adequate accruals or reserves have been established on the most recent balance sheet of the Company included in subsequent MLPthe Company SEC Documents filed by MLP priorDocuments);

(iii) there are no Actions now pending or now threatened in writing against or with respect to the date hereof,Company or any of its Subsidiaries (including a notice of deficiency or proposed judgment) with respect to any Tax;

(iv) neither MLPthe Company nor any of its consolidated subsidiaries had at December 31, 2012,Subsidiaries has granted any currently effective extension or has incurred since that date, any liabilitieswaiver of the limitation period with respect to the assessment or obligations (whether absolute, accrued, contingent or otherwise)collection of any nature, except (i) liabilities, obligationsTax;

(v) no claim which has resulted or contingencies that (A) are accrued or reserved againstcould reasonably be expected to result in an obligation to pay Taxes has been made in the financial statementslast three years by any Governmental Entity in a jurisdiction where the Company or any of MLP includedits Subsidiaries does not file a Tax Return that such Person is or may be subject to taxation by that jurisdiction;

(vi) neither the Company nor any of its Subsidiaries has any liability for the Taxes of any Person (other than Taxes of the Company or its Subsidiaries) (A) under Treasury Regulations Section 1.1502-6 (or any similar provision of state, local or non-U.S. Tax Law), (B) as a transferee or successor or (C) by Contract (other than pursuant to any Tax sharing or indemnification provisions contained in the MLP SEC Documents filed prior to the date hereof, or reflected in the notes thereto, (B) were incurred since December 31, 2012any agreement entered into in the ordinary course of business and not primarily relating to Tax (e.g., leases, credit agreements or other commercial agreements) or as provided in the Opco LLC Agreement (in respect of a potential “imputed underpayment” within the meaning of Code Section 6225));

(vii) neither the Company nor any of its Subsidiaries has been either a “distributing corporation” or a “controlled corporation” (within the meaning of Section 355(a)(1)(A) of the Code) in a distribution of stock qualifying or intended to qualify for tax-free treatment, in whole or in part, under Section 355 of the Code in the two years prior to the date of this Agreement;

(viii) neither the Company nor any of its Subsidiaries has participated in, or is currently participating in, a “listed transaction” within the meaning of Treasury Regulations Section 1.6011-4(b)(2); and

(ix) neither the Company nor any of its Subsidiaries (A) is a party to or bound by any material Tax sharing, Tax indemnity, or Tax allocation agreement or (B) has any liability or potential liability to another party under any such agreement, in each case other than pursuant to any such agreement or arrangement solely between or among any of the Company and its Subsidiaries, the Tax Receivable Agreement, the Opco LLC Agreement (in respect of a potential “imputed underpayment” within the meaning of Code Section 6225) or any other customary partnership indemnification provisions in any partnership or limited liability company agreement of any Company Subsidiary.

(b) The Company is not an “investment company” within the meaning of Section 368(a)(2)(F)(iii) of the Code.

(c) The Company has not taken or agreed to take any action, and is not aware, after reasonable diligence, of the existence of any fact or circumstance, that could reasonably be expected to prevent or impede the Integrated Mergers, taken together, from qualifying as a “reorganization” within the meaning of Section 368(a) of the Code.

Section 3.16 Contracts.

(a) Section 3.16(a) of the Company Disclosure Letter, together with the Contracts identified on the lists of exhibits to the Company SEC Documents, lists each Contract of the following types to which the Company or any of its Subsidiaries is a party or by which any of their respective properties or assets is bound as of the date hereof:

(i) any Contract that would be required to be filed by the Company as a “material contract” pursuant to Item 601(b)(10) of Regulation S-K under the Exchange Act;

(ii) any Contract that (A) materially limits the ability of the Company or any of its Subsidiaries (or, following the consummation of the Transactions, would reasonably be expected to materially limit the ability of Parent or any of its Subsidiaries, including the Surviving Company or the Opco Surviving Company) to compete in any line of business or with any Person or in any geographic area (including any Contract containing

any area of mutual interest (but excluding areas of mutual interest under joint operating agreements), joint bidding area, joint acquisition area or non-compete or similar type of restriction), (B) materially restricts the right of the Company or any of its Subsidiaries (or, following the consummation of the Transactions, would reasonably be expected to materially limit the ability of Parent or any of its Subsidiaries, including the Surviving Company or the Opco Surviving Company) to sell to or purchase from any Person any products or services, or use, transfer or distribute, or enforce any of their rights with respect to, any of their material assets, or (C) grants the other party or any third Person “most favored nation” status with respect to any material obligation (other than pursuant to customary royalty pricing provisions in Oil and Gas Leases or customary preferential rights in joint operating agreements, unit agreements or participation agreements affecting the Oil and Gas Properties of the Company or any of its Subsidiaries);

(iii) any material joint venture, partnership or limited liability agreement, other than any customary joint operating agreements, unit agreements or participation agreements affecting the Oil and Gas Properties of the Company or any of its Subsidiaries;

(iv) any Contract that constitutes a commitment of the Company or any of its Subsidiaries relating to Indebtedness and having an outstanding principal amount in excess of $35,000,000, other than agreements solely between or among the Company and its Subsidiaries;

(v) any Contract involving any pending acquisition or disposition, directly or indirectly (by merger or otherwise), of assets or capital stock or other equity interests for aggregate consideration (in one or a series of transactions) under such Contract of $35,000,000 or more (other than acquisitions or dispositions of inventory or the purchase or sale of Hydrocarbons, in each case, in the ordinary course of business consistent with past practicespractice);

(vi) any Contract that by its terms calls for aggregate payment or (C) relatereceipt by the Company and its Subsidiaries under such Contract of more than $35,000,000 over the remaining term of such Contract;

(vii) any Contract pursuant to which the Company or any of its Subsidiaries has continuing indemnification, guarantee, “earn-out” or other similar contingent payment obligations, in each case that would reasonably be expected to result in payments in excess of $35,000,000;

(viii) any Contract that obligates the Company or any of its Subsidiaries to make any future capital commitment, loan or expenditure in an amount in excess of $35,000,000, other than customary joint operating agreements, unit operating agreements or continuous development obligations under Oil and Gas Leases;

(ix) any Contract between the Company or any of its Subsidiaries, on the one hand, and any Affiliate thereof other than any Subsidiary of the Company, on the other hand; provided, that, solely for purposes of clause (ix) of this Section 3.16(a), the term “Affiliate” shall exclude any portfolio company of Quantum Energy Partners or any of its affiliated investment funds;

(x) any Contract that requires the consent of a third party in connection with the consummation of the Transactions or that would or would reasonably be expected to prevent, materially delay or impair, or otherwise be affected by, the consummation of the Transactions (including, in each case, due to a provision relating to a “change of control”);

(xi) each joint development agreement, exploration agreement, participation, farmout, farmin or program agreement or similar contract requiring the Company or any of its Subsidiaries to make expenditures that would reasonably be expected to exceed $35,000,000 in the aggregate during the 12-month period following the date of this Agreement, other than customary joint operating agreements and continuous development obligations under Oil and Gas Leases;

(xii) each Contract for any Derivative Transaction with a notional value in excess of $35,000,000;

(xiii) any Contract that contains a “take-or-pay” clause or any similar material prepayment or forward sale arrangement or obligation (excluding “gas balancing” arrangements associated with customary joint operating agreements) to deliver Hydrocarbons at some future time without then or thereafter receiving full payment therefor;

(xiv) each Contract that is a transportation, gathering, processing, purchase, sale, storage or other arrangement downstream of the Mergerwellhead to which the Company or any of its Subsidiaries is a party involving (A) the transportation, gathering, processing, purchase, sale or storage of more than 75 MMcf of gaseous Hydrocarbons per day, or 5,000 barrels of liquid Hydrocarbons per day, or (B) that provides for (i) an acreage dedication in excess of 5,000 gross surface acres, (ii) a minimum volume commitment in excess of 50 MMcf of gaseous Hydrocarbons per day or 5,000 barrels of liquid Hydrocarbons per day or (iii) a capacity reservation fee (x) that has a remaining term of greater than 60 days and does not allow the Company or such Subsidiary to terminate it without penalty on 60 days’ (or less) notice and (y) that could reasonably be expected to result in the payment by the Company or any of its Subsidiaries of an amount in excess of $35,000,000 over the remaining term of such agreement;

(xv) each Contract to which the Company or any of its Subsidiaries is a party for the purchase, sale, swap or exchange of minerals or mineral rights having a value in excess of $35,000,000, in each case, for which such purchase, sale, swap or exchange of minerals or mineral rights remain pending (and excluding, for the avoidance of doubt, the purchase and sale of Hydrocarbons in the ordinary course of business consistent with past practices);

(xvi) any Contract (other than Oil and Gas Leases) pursuant to which the Company or any of its Subsidiaries has paid amounts associated with any Production Burden in excess of $35,000,000 in the aggregate during the immediately preceding fiscal year which will be binding on the Company or any of its Subsidiaries following the consummation of the Transactions or the proposal of PNR with respect to which the Merger Company reasonably expects that it and/or (ii) liabilities, obligationsone of its Subsidiaries will make payments associated with any Production Burden in any of the next three succeeding fiscal years that could, based on current projections, exceed $35,000,000 in the aggregate in any such year; or contingencies

(xvii) each Contract for lease of personal property or real property (other than Oil and Gas Properties) involving payments in excess of $35,000,000 in any calendar year or aggregate payments in excess of $125,000,000 that (A) couldis not reasonably be expected, eitherterminable without penalty or other liability to the Company (other than any ongoing obligation pursuant to such contract that is not caused by any such termination) within 90 days, other than Contracts related to drilling rigs.

Each contract of the type described in clauses (i) through (xvii) is referred to herein as a “Company Material Contract.”

(b) Except for matters which, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect (provided, that clause (D) of the definition of “Material Adverse Effect” shall be disregarded for purposes of this Section 3.16(b)) (i) each Company Material Contract is valid and binding on MLP or (B) that have been discharged or paidthe Company and any of its Subsidiaries to the extent such Subsidiary is a party thereto, as applicable, and to the knowledge of the Company, each other party thereto, and is in full priorforce and effect and enforceable in accordance with its terms, subject, as to enforceability, to Creditors’ Rights, and (ii) there is no pending or unresolved default under any Company Material Contract by the Company or any of its Subsidiaries or, to the date hereof.knowledge of the Company, any other party thereto, and no event or condition has occurred that remains pending or unresolved that constitutes, or, after notice or lapse of time or both, would reasonably be expected to constitute, a default on the part of the Company or any of its Subsidiaries or, to the knowledge of the Company, any other party thereto under any such Company Material Contract, nor has the Company or any of its Subsidiaries received any notice of any such default, event or condition. The Company has made available to Parent true and complete copies of all Company Material Contracts.

(i)Compliance with LawSection 3.17 Insurance. Each MLP PartyThe Company and each of their respectiveits Subsidiaries are covered by valid and currently effective insurance policies issued in favor of the Company or one or more of its Subsidiaries that are customary and adequate for companies of similar size in the industries and locations in which the Company and its Subsidiaries operate. With respect to each material insurance policy issued in favor of the Company or any of its Subsidiaries, or pursuant to which the Company or any of its Subsidiaries is a named insured or otherwise a beneficiary, as well as each historic incurrence-based policy still in compliance withforce, (a) such policy is in full force and effect and all premiums due thereon have been paid, (b) neither the Company nor any of its Subsidiaries is in

breach or default, and has not intaken any action or failed to take any action which (with or without notice or lapse of time, or both) would constitute such a breach or default, under or in violationwould permit termination or modification of, any applicable Law, except where such non-compliance, defaultpolicy and (c) to the knowledge of the Company, no insurer issuing any such policy has been declared insolvent or violation couldplaced in receivership, conservatorship or liquidation. No notice of cancellation or termination has been received with respect to any such policy, nor will any such cancellation or termination result from the consummation of the Transactions.

Section 3.18 Properties.

(a) Except as would not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect, the Company or one of its Subsidiaries has good and valid title to, or valid leasehold or other ownership interest or rights in, each of the material real properties (except for any of the Company’s or any its Subsidiaries’ Oil and Gas Properties, which are subject to Section 3.25 and shall not constitute a Company Property for the purposes of this Agreement) reflected as an asset on MLP. Since December 31, 2012, no MLP Partythe most recent balance sheet of the Company included in the Company SEC Documents (each, a “Company Property”), in each case free and clear of all Liens, defects or imperfections, except for Permitted Liens or Liens, defects or imperfections which do not and would not reasonably be expected to, individually or in the aggregate, materially impair the continued use and operation of the real properties to which they relate in the conduct of the business of the Company and each of its Subsidiaries as presently conducted. Except for matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect, neither the Company nor any of their respectiveits Subsidiaries has received any written notice to the effect that there are any condemnation, expropriation or other proceedings that are pending or, to MLP’s Knowledge, other communication fromthe knowledge of the Company, threatened with respect to any Governmental Authority regardingmaterial portion of any actual or

of the Company Properties.

possible violation of, or failure to comply with, any Law, except(b) Except as couldwould not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect, on MLP.

(j)Material Contracts.

(i) Except for this Agreement, as ofneither the date hereof, neither MLPCompany nor any of its Subsidiaries has leased or otherwise granted to any Person the right to use or occupy any Company Property or any portion thereof, (ii) there are no outstanding options, rights of first offer or rights of first refusal to purchase any Company Property or any portion thereof or interest therein, (iii) there are no boundary disputes relating to any Company Property and no encroachments materially and adversely affecting the use of any Company Property and (iv) with respect to each Company Property, all material buildings, structures, fixtures and improvements are in all respects adequate and sufficient and in satisfactory condition to support the operations of the Company and each of its Subsidiaries as presently conducted.

(c) Each lease pursuant to which the Company or one of its Subsidiaries has a leasehold interest in the Company Properties, to the knowledge of the Company, is a partyin full force and effect and is valid and enforceable against the parties thereto in accordance with its terms, subject, as to or bound by any MLP Material Contract that is requiredenforceability, to Creditors’ Rights, except for such failure to be filed as an exhibit toin full force and effect that, individually or in the MLP SEC Documents thataggregate, has not been so filed.

(ii) Except as couldhad and would not reasonably be expected to have a Company Material Adverse Effect.

Section 3.19 Intellectual Property. Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, on MLP, (A) each MLPeither the Company or a Subsidiary of the Company owns, or is licensed or otherwise possesses adequate rights to use (in the manner and to the extent it has used the same), all Intellectual Property of any kind used in their respective businesses as currently conducted (collectively, the “Company Intellectual Property”). Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Contract is valid and binding and in full force and effect, (B)Adverse Effect, (a) there are no eventpending or, condition exists which constitutes a default onto the partknowledge of MLPthe Company, threatened claims by any Person alleging infringement, misappropriation, dilution, or other violation by the Company or any of its Subsidiaries underof the Intellectual Property of any such MLP Material Contract,Person; (b) the conduct of the businesses of the Company and (C)its Subsidiaries has not infringed, misappropriated, diluted, or otherwise violated and does not infringe, misappropriate, dilute, or otherwise violate any Intellectual Property of any Person; (c) neither the Company nor any of its Subsidiaries has made any claim of infringement, misappropriation or other violation by others of its rights to or in connection with the Company Intellectual Property; (d) to the Knowledgeknowledge of MLP,the Company, no other partyPerson is infringing, misappropriating or diluting any Company Intellectual Property; (e) the Company and its Subsidiaries have taken reasonable steps to such MLP Material Contract isprotect

the confidentiality of their trade secrets and the security of their computer systems and networks; and (f) the consummation of the Transactions will not result in default in any respect thereunder.

(k)No Brokers. No action has been taken by the MLP Parties that wouldloss of, or give rise to any valid claim againstright of any third party hereto forto terminate, any of the Company’s or any of its Subsidiaries’ rights or obligations under, any agreement under which the Company or any of its Subsidiaries grants to any Person, or any Person grants to the Company or any of its Subsidiaries, a brokerage commission, finder’s feelicense or other like paymentright under or with respect to any Company Intellectual Property.

Section 3.20 State Takeover Statutes. As of the date hereof and at all times on or prior to the Effective Time, the Company Board has taken all actions so that the restrictions applicable to business combinations contained in Section 203 of the DGCL are, and will be, inapplicable to the execution, delivery and performance of this Agreement and the timely consummation of the First Company Merger and the other Transactions excluding feesand will not restrict, impair or delay the ability of Parent or the Surviving Corporation, after the Effective Time, to vote or otherwise exercise all rights as a stockholder of the Company. No “moratorium,” “fair price,” “business combination,” “control share acquisition” or similar provision of any state anti-takeover Law (collectively, “Takeover Laws”) (assuming the accuracy of the representation and warranties set forth in Section 4.31) or any similar anti-takeover provision in the Company Charter or Company Bylaws is, or at the Effective Time will be, applicable to this Agreement, the First Company Merger or any of the other Transactions.

Section 3.21 No Rights Plan. As of the date of this Agreement, there is no stockholder rights plan, “poison pill,” anti-takeover plan or other similar device in effect to which the Company is a party or is otherwise bound.

Section 3.22 Related Party Transactions. No Related Party of the Company is a party to any Contract with or binding upon the Company or any of its Subsidiaries or any of their respective properties or assets or has any interest in any property owned by the Company or any of its Subsidiaries or has engaged in any transaction with any of the foregoing within the last 12 months, in each case, that is of a type that would be required to be paid to Evercore Group L.L.C.,disclosed in the Company SEC Documents pursuant to Item 404 of Regulation S-K (a “Company Affiliate Transaction”) that has not been so disclosed. No Related Party of the Company or any of its Subsidiaries owns, directly or indirectly, on an individual or joint basis, any controlling interest in, or serves as an officer or director or in another similar capacity of, any supplier or other independent contractor of the Company or any of its Subsidiaries, or any organization which has a letter agreement,Contract with the existenceCompany or any of its Subsidiaries.

Section 3.23 Certain Payments. Neither the Company nor any of its Subsidiaries (nor, to the knowledge of the Company, any of their respective directors, executives, representatives, agents or employees) (a) has used or is using any corporate funds for any illegal contributions, gifts, entertainment or other unlawful expenses relating to political activity, (b) has used or is using any corporate funds for any direct or indirect unlawful payments to any foreign or domestic governmental officials or employees, (c) has violated or is violating any provision of the Foreign Corrupt Practices Act of 1977, (d) has established or maintained, or is maintaining, any unlawful fund of corporate monies or other properties or (e) has made any bribe, unlawful rebate, payoff, influence payment, kickback or other unlawful payment of any nature.

Section 3.24 Rights-of-Way. Each of the Company and its Subsidiaries has such, easements, rights-of-way, permits and licenses from each Person (collectively, “Rights-of-Way”) as are sufficient to conduct its business in the manner currently conducted, except for such Rights-of-Way the absence of which, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect. Each of the Company and its Subsidiaries conducts its business in a manner that does not violate any of the Rights-of-Way and no unresolved event has occurred that allows, or after notice or lapse of time would reasonably be expected to allow, revocation or termination thereof or would reasonably be expected to result in any impairment of the rights of the holder of any such Rights-of-Way, except for such violations, revocations, terminations and impairments that, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect. All pipelines operated by the Company and its Subsidiaries are subject to Rights-of-Way or are located on real property owned or leased by the Company, and there are no gaps (including any gap arising as a result of any breach by the Company or any of its Subsidiaries of the terms of any Rights-of-Way) in the Rights-of-Way other than gaps that would not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect.

Section 3.25 Oil and Gas Matters.

(a) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, and except for (i) property sold or otherwise disposed of in the ordinary course of business since the date of the letter prepared by Netherland, Sewell & Associates, Inc. (the “Company Independent Petroleum Engineers”) auditing the Company’s internally prepared reserve report relating to the Company interests referred to therein as of December 31, 2019 (the “Company Reserve Report Letter”), (ii) property reflected in the Company Reserve Report Letter or in the Filed Company SEC Documents as having been sold or otherwise disposed of, other than sales, exchanges, swaps or dispositions after the date hereof in accordance with Section 5.1(a) or (iii) Oil and Gas Leases that have expired or terminated in accordance with the terms thereof on a date on or after the date hereof, the Company and its Subsidiaries have good and defensible title to all Oil and Gas Properties forming the basis for the reserves reflected in the Company Reserve Report Letter and in each case as attributable to interests owned (or purported to be held or owned) by the Company and its Subsidiaries. For purposes of the foregoing sentence, “good and defensible title” means that the Company’s or one or more of its Subsidiaries’, as applicable, title (as of the date hereof and as of the Closing Date) to each of the Oil and Gas Properties held or owned by them (or purported to be held or owned by them) that (1) entitles the Company (or one or more of its Subsidiaries, as applicable) to receive (after satisfaction of all Production Burdens applicable thereto), not less than the net revenue interest share shown in the Company Reserve Report Letter of all Hydrocarbons produced from such Oil and Gas Properties throughout the life of such Oil and Gas Properties except, in each case, for (x) any decreases in connection with those operations in which the Company or any of its Subsidiaries may elect after the date hereof to be a non-consenting co-owner, (y) any decreases resulting from the establishment or amendment, after the date hereof, of pools or units, and (z) decreases required to allow other working interest owners to make up past underproduction or pipelines to make up past under deliveries, (2) obligates the Company (or one or more of its Subsidiaries, as applicable) to bear a percentage of the costs and expenses for the maintenance and development of, and operations relating to, such Oil and Gas Properties, of not greater than the working interest shown on the Company Reserve Report Letter for such Oil and Gas Properties except, in each case, for (x) increases that are accompanied by a proportionate (or greater) increase in the net revenue interest in such Oil and Gas Properties, and (y) increases resulting from contribution requirements with respect to defaulting or non-consenting co-owners under applicable operating agreements or Laws that are accompanied by a proportionate (or greater) net revenue interest in such Oil and Gas Properties and (3) is free and clear of all Liens, defects and imperfections, except for Permitted Liens and Liens, defects and imperfections which, individually or in the aggregate, would not reasonably be expected to materially impair the continued use and operation of the Oil and Gas Properties to which they relate in the conduct of business of the Company and each of its Subsidiaries as presently conducted.

(b) Except for any such matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect, the factual, non-interpretive data supplied to the Company Independent Petroleum Engineers by or on behalf of the Company and its Subsidiaries for purposes of auditing the Company’s internally prepared reserve report and preparing the Company Reserve Report Letter that was material to such firm’s audit of the Company’s internally prepared estimates of proved oil and gas reserves attributable to the Oil and Gas Properties of the Company and its Subsidiaries in connection with the preparation of the Company Reserve Report Letter was, as of the time provided, accurate in all respects. Except for any such matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Company Material Adverse Effect, the oil and gas reserve estimates of the Company set forth in the Company Reserve Report Letter are derived from reports that have been prepared by the Company in accordance with customary industry practices, and such reserve estimates fairly reflect, in all respects, the oil and gas reserves of the Company at the dates indicated therein and are in accordance with SEC guidelines applicable thereto applied on a consistent basis throughout the periods involved. Except for changes generally affecting the oil and gas exploration, development and production industry (including changes in commodity prices) and normal depletion by production, there has been heretofore disclosedno change in respect of the matters addressed in the Company Reserve Report Letter that, individually or in the aggregate, has had or would reasonably be expected to have a Company Material Adverse Effect.

(c) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, (i) all delay rentals, shut-in royalties and similar payments owed to any Person or individual under (or otherwise with respect to) any Oil and Gas Leases of the Company or any of its Subsidiaries have been properly and timely paid, (ii) all Production Burdens with respect to any Oil and Gas Properties owned or held by the Company or any of its Subsidiaries have been timely and properly paid (in each case, except such Production Burdens (x) as are being currently paid prior to delinquency in the ordinary course of business, (y) currently held as suspense funds or (z) the amount or validity of which is being contested in good faith by appropriate proceedings and for which appropriate reserves have been established) and (iii) none of the Company or any of its Subsidiaries (and, to the PNR Parties.Company’s knowledge, no third party operator) has violated any provision of, or taken or failed to take any act that, with or without notice, lapse of time, or both, would constitute a default under the provisions of any Oil and Gas Lease (or entitle the lessor thereunder to cancel or terminate such Oil and Gas Lease) included in the Oil and Gas Properties owned or held by the Company or any of its Subsidiaries.

(l)MLP Fairness Opinion. At(d) Except as, individually or in the meeting ataggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, all proceeds from the sale of Hydrocarbons attributable to the Company’s and its Subsidiaries’ interests in the Oil and Gas Properties are being received by them in a timely manner and are not being held in suspense (by the Company, any of its Subsidiaries, any third party operator thereof or any other Person) for any reason other than awaiting preparation and approval of division order title opinions for recently drilled Wells.

(e) All of the Wells and all water, CO2, injection or other wells located on the Oil and Gas Leases of the Company and its Subsidiaries or otherwise associated with an Oil and Gas Property of the Company or its Subsidiaries have been drilled, completed and operated within the limits permitted by the applicable contracts entered into by the Company or any of its Subsidiaries related to such wells and applicable Law, and all drilling and completion (and plugging and abandonment) of such wells and all related development, production and other operations have been conducted in compliance with all applicable Law except, in each case, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect.

(f) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, none of the material Oil and Gas Properties of the Company or its Subsidiaries is subject to any preferential purchase, consent or similar right that would become operative as a result of the consummation of the Transactions.

(g) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, to the Company’s knowledge, there are no Wells that constitute a part of the Company’s or its Subsidiaries’ Oil and Gas Properties for which the MLP GP Conflicts Committee approvedCompany or any of its Subsidiaries has received a notice, claim, demand or order from any Governmental Entity notifying, claiming, demanding or requiring that such Well(s) be temporarily or permanently plugged and abandoned that remains pending or unresolved.

(h) As of the date of this Agreement, Evercore Group L.L.C. deliveredthere is no outstanding authorization for expenditure or similar request or invoice for funding or participation under any agreement or contract which are binding on the Company, its Subsidiaries or any of the Company’s or its Subsidiaries’ Oil and Gas Properties and which the Company reasonably anticipates will individually require expenditures by the Company or its Subsidiaries in excess of $10,000,000 (net to Company’s or its Subsidiaries’ interest).

Section 3.26 Derivative Transactions.

(a) Except as, individually or in the MLP GP Conflicts Committeeaggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, all Derivative Transactions entered into by the Company or any of its oral opinion (to be confirmed in writing) toSubsidiaries or for the effect that,account of any of its customers as of the date of this Agreement were entered into in accordance with applicable Laws, and in accordance with the investment, securities, commodities, risk management and other policies, practices and procedures employed by the Company and its Subsidiaries, and were entered into with counterparties believed at the time to be financially responsible and able to understand (either alone or in consultation with their advisers) and to bear the risks of such Derivative Transactions.

(b) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Company Material Adverse Effect, the Company and each of its Subsidiaries have duly performed in all respects all of their respective obligations under the Derivative Transactions to the extent that such obligations to perform have accrued, and there are no breaches, violations, collateral deficiencies, requests for collateral or demands for payment, or defaults or allegations or assertions of such by any party thereunder.

(c) The Filed Company SEC Documents accurately summarize, in all material respects, the outstanding positions under any Derivative Transaction of the Company and its Subsidiaries, including Hydrocarbon and financial positions under any Derivative Transaction of the Company attributable to the production and marketing of the Company and its Subsidiaries, as of the dates reflected therein. Section 3.26(c) of the Company Disclosure Letter lists, as of the date of this Agreement, all Derivative Transactions to which the Company or any of its Subsidiaries is a party.

Section 3.27 Regulatory Matters.

(a) The Company is not (i) an “investment company” or a company “controlled” by an “investment company” within the meaning of the U.S. Investment Company Act of 1940 or (ii) a “holding company,” a “subsidiary company” of a “holding company,” an Affiliate of a “holding company,” a “public utility” or a “public-utility company,” as each such term is defined in the U.S. Public Utility Holding Company Act of 2005.

(b) All natural gas pipeline systems and related facilities constituting the Company’s and its Subsidiaries’ properties are (i) “gathering facilities” that are exempt from regulation by the U.S. Federal Energy Regulatory Commission (“FERC”) under the Natural Gas Act of 1938, 15 U.S.C. § 717 et. seq. (the “Natural Gas Act”) and (ii) not subject to rate regulation or comprehensive nondiscriminatory access regulation under the Laws of any state or other local jurisdiction.

Section 3.28 Brokers. No broker, investment banker, financial advisor or other Person, other than Credit Suisse Securities (USA) LLC and Wells Fargo Securities LLC (the “Company Financial Advisors”), the fees and expenses of which will be paid by the Company, is entitled to any broker’s, finder’s, financial advisor’s or other similar fee or commission in connection with the Transactions based upon arrangements made by or on behalf of the Company Parties or any of their Affiliates. The Company has furnished to Parent a true and complete copy of any Contract between the Company and the Company Financial Advisors pursuant to which the Company Financial Advisors could be entitled to any payment from the Company of any of its Subsidiaries relating to the Transactions.

Section 3.29 Opinions of Financial Advisors. The Company has received the oral opinion of each of the Company Financial Advisors, to the effect that, based upon and subject to certainthe various assumptions made, procedures followed, qualifications, limitations and other matters stated therein,considered, in connection with the preparation of each such opinion, as of the date of the opinion, the Exchange Ratio isand the Opco Exchange Ratio are fair, from a financial point of view, to the MLP Unaffiliated Unitholders.holders of shares of Company Class A Common Stock, in respect of their shares of Company Class A Common Stock, and to the holders of Company Class B Common Stock, in respect of their Opco LLC Stapled Units, respectively. A copy of the written opinion of each Company Financial Advisor confirming its oral opinion will promptly be provided to Parent solely for informational purposes following the execution of this Agreement and the receipt thereof by the Company and it is agreed that such opinions are for the benefit of the Company Board and may not be relied upon by Parent, Merger Sub Inc., Merger Sub LLC, Opco Merger Sub LLC or any other Person.

(m)Section 3.30 No Material Adverse EffectOther Representations or Warranties. Since December 31, 2012

(a) Except for the representations and warranties contained in this Article III and the corresponding representations and warranties set forth in the Company’s officers’ certificate to be delivered pursuant to Section 6.2(c), each Parent Party acknowledges that no Company Party nor any other Person on behalf of a Company Party makes any other express or implied representation or warranty with respect to the Company Parties or any of their Subsidiaries or their respective businesses, operations, assets, liabilities or conditions (financial or otherwise) with respect to any other information provided to any of the Parent Parties in connection with this Agreement or the Transactions, and the Company Parties hereby disclaim any such other

representations or warranties. In particular, without limiting the foregoing disclaimer, no Company Party nor any other Person on behalf of the Company makes or has made any representation or warranty, except for the representations and warranties made by the Company Parties in this Article III and the corresponding representations and warranties set forth in the Company’s officers’ certificate to be delivered pursuant to Section 6.2(c), to any Parent Party or any of their respective Affiliates or Representatives with respect to (i) any financial projection, forecast, estimate, budget or prospect information relating to any Company Party or its respective Subsidiaries or its businesses; or (ii) any oral or written information presented to any Parent Party or any of their respective Affiliates or Representatives in the course of their due diligence investigation of the Company, the negotiation of this Agreement or in the course of the Transactions. No Company Party nor any other Person will have or be subject to any liability to any Parent Party or any other Person resulting from the distribution to any Parent Party, or any Parent Party’s use of, any such information, including any information, documents, projections, forecasts or other material made available to the Parent Parties in certain “data rooms,” “virtual data rooms,” management presentations or in any other form in expectation of, or in connection with, the Transactions. Notwithstanding the foregoing, nothing in this Section 3.30 shall limit any Parent Party’s remedies with respect to claims of Fraud arising from or relating to the express written representations and warranties made by the Company Parties in this Article III and the corresponding representations and warranties set forth in the Company’s officers’ certificate to be delivered pursuant to Section 6.2(c).

(b) Notwithstanding anything contained in this Agreement to the contrary, the Company Parties acknowledge and agree that no Parent Party nor any other Person on behalf of Parent has made or is making any representations or warranties relating to any Parent Party or their respective Subsidiaries whatsoever, express or implied, beyond those expressly given by the Parent Parties in Article IV, including any implied representation or warranty as to the accuracy or completeness of any information regarding any Parent Party furnished or made available to the Company Parties or any of their Representatives, and that the Company Parties have not relied on any such other representation or warranty not set forth in this Agreement. Without limiting the generality of the foregoing, the Company Parties acknowledge that, except for the representations and warranties contained in this Article III and the corresponding representations and warranties set forth in the Company’s officers’ certificate to be delivered pursuant to Section 6.2(c), no representations or warranties are made with respect to any projections, forecasts, estimates, budgets or prospect information that may have been made available to the Company Parties or any of their Representatives (including in certain “data rooms,” “virtual data rooms,” management presentations or in any other form in expectation of, or in connection with, the Transactions).

ARTICLE IV

REPRESENTATIONS AND WARRANTIES OF THE PARENT PARTIES

Except (i) as and to the extent disclosed in the Parent SEC Documents filed or furnished with the SEC on or after January 1, 2019 and publicly available prior to the date of this Agreement there has not been a Material Adverse Effect on MLP.

Section 5.2Representations and Warranties of PNR Parties. Except as(other than any disclosures set forth in PNR’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012,any risk factor section, in any section relating to forward looking statements and allany other reports, registration statements, definitive proxy statements or information statements filed by PNR or any of its Subsidiaries subsequent to December 31, 2012 under the Securities Act, or under Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act, in the form filed with the SEC (collectively, “PNR SEC Documents”) prior to the date hereof (excluding any disclosures included therein to the extent they are predictive, cautionary predictive or forward-looking in nature, including thosenature) (the “Filed Parent SEC Documents”) or (ii) as set forth in the corresponding section or subsection of the disclosure letter delivered by Parent to the Company immediately prior to the execution of this Agreement (the “Parent Disclosure Letter”) (it being agreed that the disclosure of any risk factorinformation in a particular section or subsection of the Parent Disclosure Letter shall be deemed disclosure of such documents)information with respect to any other section or subsection of this Agreement to which the relevance of such information is readily apparent on its face), Parent, Merger Sub Inc., Merger Sub LLC and Opco Merger Sub LLC (collectively, the PNRParent Parties hereby”) represent and warrant with respect to themselves and their respective Subsidiaries to MLP,the Company Parties as follows:

(a)Section 4.1 Organization, General AuthorityStanding and StandingPower.

(a) Each of the PNR PartiesParent Party and its Subsidiaries is a corporation or limited liability company, as the case may be,an entity duly formed,organized, validly existing and in good standing under the Laws of the Statejurisdiction of Delaware. Each PNR Party (i)its organization and has theall requisite corporate or limited liability companyentity power and authority to own, lease and lease all ofoperate its properties and assets and to carry on its business as it is now being conducted, (ii)except in the case of

any Subsidiary of the Parent Parties, where the failure to be so organized or in good standing or to have such power or authority, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect. Each Parent Party and its Subsidiaries is duly qualified or licensed to do business and is in good standing in each jurisdiction in which the states of the United States of America where itsownership or leasing of property or the conductnature of its business requires it to be so qualified, and (iii) has in effect all federal, state, local, and foreign governmental authorizations and permits necessary for it to own or leasethe ownership, leasing or operation of its properties and assets and to carry on its business as it is now conducted,makes such qualification or licensing necessary, except where the failure to have such power and authority, to be so qualified or licensed or in good standing, individually or in the aggregate, has not had and would not reasonably be expected to have such authorizations and permits in effect would not have a Parent Material Adverse Effect on PNR.Effect.

(b)Capitalization.As Parent has previously made available to the Company true and complete copies of July 30, 2013, there wereParent’s certificate of incorporation (the “Parent Charter”) and bylaws (the “Parent Bylaws”) and the certificate of incorporation and by-laws (or comparable organizational documents) of each of the other Parent Parties, in each case as amended to the date of this Agreement (together with the Parent Charter and the Parent Bylaws, the “Parent Organizational Documents”), and each of the Parent Organizational Documents as so made available is in full force and effect. Neither Parent nor any of the other Parent Parties is in violation of any provision of the Parent Organizational Documents.

Section 4.2 Capital Stock.

(a) The authorized capital stock of Parent consists of 500,000,000 shares of PNRParent Common Stock authorized,and 100,000,000 shares of which 138,546,648preferred stock, par value $0.01 per share, of Parent (the “Parent Preferred Stock”). As of the close of business on the Measurement Date, (i) 164,450,231 shares of Parent Common Stock (excluding treasury shares) were issued and outstanding and all(including 47,171 shares subject to outstanding Parent Restricted Stock Awards), (ii) 11,059,909 shares of suchParent Common Stock were held by Parent in its treasury, (iii) no shares of Parent Preferred Stock were issued and outstanding or held by Parent in its treasury, (iv) 1,789,436 shares of PNRParent Common Stock were reserved for issuance pursuant to the Parent Plans (of which (A) 971,097 shares were subject to outstanding Parent RSU Awards, (B) 704,114 shares were subject to outstanding Parent PRSU Awards (assuming maximum levels of performance are achieved) and (C) 114,225 shares were subject to issuance upon exercise of outstanding Parent Stock Options) and (v) 15,661,971 shares of Parent Common Stock were reserved for issuance upon conversion of the Parent Convertible Notes.

(b) All outstanding shares of capital stock of Parent are, and all shares reserved for issuance will be, when issued, duly authorized, validly issued, fully paid and validly issued.nonassessable and not subject to any preemptive rights. The shares of NewParent Common Stock to be issued in accordance withpursuant to this Agreement, have been duly authorized and, when issued, will be validly issued, and fully paid and nonassessable.

(c)Power, Authoritynonassessable and Approvalsnot subject to preemptive rights. No shares of Transactions. Eachcapital stock of Parent are owned by any Subsidiary of Parent. All outstanding shares of capital stock and other voting securities or equity interests of each Subsidiary of Parent have been duly authorized and validly issued and are fully paid, nonassessable and not subject to any preemptive rights. All outstanding shares of capital stock and other voting securities or equity interests of each such Subsidiary are owned, directly or indirectly, by Parent, free and clear of all Liens, other than transfer restrictions of general applicability as may be provided under the Securities Act or other applicable securities Laws or as set forth in the Parent Organizational Documents. Subject to the accuracy of the PNR Partiesrepresentations and warranties contained in Section 3.8, the Parent Common Stock to be issued pursuant to this Agreement, when issued, will be issued in compliance in all material respects with (A) applicable securities Laws and other applicable Law and (B) all requirements set forth in applicable Contracts.

(c) As of the close of business on the Measurement Date, neither Parent nor any of its Subsidiaries has outstanding any bonds, debentures, notes or other obligations having the requisiteright to vote (or convertible into, or exchangeable or exercisable for, securities having the right to vote) with the stockholders of Parent or such Subsidiary on any matter. Except as set forth above in Section 4.2(a) and except for changes since the close of business on the Measurement Date resulting from the settlement of Parent RSU Awards or Parent PRSU Awards or the settlement of Parent Stock Options under the Pioneer Natural Resources Company Employee Stock Purchase Plan, as amended, in each case in accordance with their terms as in effect on the Measurement Date or the date of such later issuance, or resulting from any issuance after the date of this Agreement permitted by Section 5.1(b), there are no outstanding (A) shares of capital stock or other voting securities or equity interests of Parent, (B) securities of Parent or any of its Subsidiaries convertible into or exchangeable or exercisable for

shares of capital stock of Parent or other voting securities or equity interests of Parent or any of its Subsidiaries, (C) stock appreciation rights, “phantom” stock rights, performance units, interests in or rights to the ownership or earnings of Parent or any of its Subsidiaries or other equity equivalent or equity-based awards or rights, (D) subscriptions, options, warrants, calls, commitments, Contracts or other rights to acquire from Parent or any of its Subsidiaries, or obligations of Parent or any of its Subsidiaries to issue, any shares of capital stock of Parent or any of its Subsidiaries, voting securities, equity interests or securities convertible into or exchangeable or exercisable for capital stock or other voting securities or equity interests of Parent or any of its Subsidiaries or rights or interests described in the preceding clause (C) or (E) obligations of Parent or any of its Subsidiaries to repurchase, redeem or otherwise acquire any such securities or to issue, grant, deliver or sell, or cause to be issued, granted, delivered or sold, any such securities.

(d) Except for the Parent Organizational Documents, there are no stockholder agreements, voting trusts or other agreements or understandings to which Parent or any of its Subsidiaries is a party with respect to the holding, voting, registration, redemption, repurchase or disposition of, or that restricts the transfer of, any capital stock or other voting securities or equity interests of Parent or any of its Subsidiaries.

(e) The authorized capital stock of Merger Sub Inc. consists of 1,000 shares of common stock, par value $0.01 per share, of which 100 shares are issued and outstanding, all of which shares are directly owned by Parent.

(f) All of the issued and outstanding limited liability company interests of each of Merger Sub LLC and Opco Merger Sub LLC are directly owned by Parent.

Section 4.3 Subsidiaries. Section 4.3 of the Parent Disclosure Letter sets forth a true and complete list of each Subsidiary of Parent, including its jurisdiction of incorporation or formation. Except for the capital stock of, or other equity or voting interests in, its Subsidiaries or any Oil and Gas Properties, Parent does not own, directly or indirectly, any equity, membership interest, partnership interest, joint venture interest, or other equity or voting interest in, or any interest convertible into, exercisable or exchangeable for any such equity, membership interest, partnership interest, joint venture interest, or other equity or voting interest in, nor is it under any obligation to provide funds to, make any material loan, capital contribution, guarantee, credit enhancement or other material investment in, or assume any liability or obligation of, any Person.

Section 4.4 Authority.

(a) Each Parent Party has all necessary corporate or limited liability company power and authority to execute, deliver and perform its obligations under this Agreement and, subject to the receipt of the Parent Stockholder Approval, to consummate the Merger Transactions. ThisThe execution, delivery and performance of this Agreement by the Parent Parties and the Mergerconsummation by the Parent Parties of the Transactions have been duly authorized by all necessary corporate or limited liability company action on the part of the Parent Parties and no other corporate or limited liability company proceedings on the part of the Parent Parties are necessary to approve this Agreement or to consummate the Transactions, subject to the affirmative vote of the holders of a majority of the outstanding shares of Parent Common Stock represented in person or by proxy and entitled to vote on the PNR Parties.matter at the Parent Stockholders Meeting approving the Stock Issuance, as required by Section 312.03 of the NYSE Listed Company Manual (the “Parent Stockholder Approval”). This Agreement has been duly executed and delivered by the Parent Parties and, assuming the due authorization, execution and delivery by each PNRCompany Party, and constitutes a valid and binding agreementobligation of each PNRParent Party, (assuming the due execution and delivery of this Agreement by, or on behalf of, the Other Parties), enforceable against each such PNRParent Party in accordance with its terms, (exceptsubject as suchto enforceability to Creditors’ Rights.

(b) The Parent Board, at a meeting duly called and held at which all directors of Parent were present, duly and unanimously adopted resolutions (i) determining that the Transactions (including the Mergers) are in the best interests of, and are advisable to, Parent and the Parent Stockholders, (ii) approving, adopting and declaring advisable this Agreement and the Transactions, (iii) directing that the Stock Issuance be submitted to the Parent Stockholders for approval at the Parent Stockholders Meeting and (iv) resolving to recommend that the Parent Stockholders approve the Stock Issuance, which resolutions have not been subsequently rescinded, modified or withdrawn in any way, except as may be limitedpermitted by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transferSection 5.2.

(c) The Parent Stockholder Approval is the only vote of the holders of any class or series of Parent’s capital stock or other securities required in connection with the consummation of the Transactions. No vote of the holders of any class or series of Parent’s capital stock or other securities is required in connection with the consummation of any of the Transactions other than the Stock Issuance.

Section 4.5 No Conflict; Consents and similar LawsApprovals.

(a) The execution, delivery and performance of general applicability relatingthis Agreement by each of the Parent Parties do not, and the consummation of the Transactions (with or without notice or lapse of time, or both) will not, conflict with, or result in any violation or breach of, or default (with or without notice or lapse of time, or both) under, or give rise to a right of, or affecting creditors’result in, termination, cancellation, modification or acceleration of any obligation or to the loss of a material benefit under, or result in the creation of any Lien (other than Permitted Liens) in or upon any of the properties, assets or rights of the Parent Parties or any of their respective Subsidiaries under, or give rise to any increased, additional, accelerated or guaranteed rights or entitlements under, or require any consent, waiver or approval of any Person pursuant to, any provision of (i) the Parent Organizational Documents, (ii) any material Contract to which any Parent Party or any of their respective Subsidiaries is a party or by general equity principles (regardlesswhich the Parent Parties or any of whether such enforceability is considered in a proceeding in equitytheir Subsidiaries or at law)).

(d)No Violationsany of their respective properties or Defaults. Subjectassets may be bound or (iii) subject to the declaration of effectivenessgovernmental filings and other matters referred to in Section 4.5(b), any Law or any rule or regulation of the Registration Statement,NYSE applicable to the Parent Parties or any of their respective Subsidiaries or by which the Parent Parties, any of their Subsidiaries or any of their respective properties or assets may be bound, except as, in the case of clauses (ii) and (iii), as individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect (provided, that clause (D) of the definition of “Material Adverse Effect” shall be disregarded for purposes of this Section 4.5(a)).

(b) No consent, approval, order or authorization of, or registration, declaration, filing with or notice to, any Governmental Entity is required filings under federal and state securities laws andby or with respect to the NYSE, assuming the other consents and approvals contemplated by Section 5.2(e) and Article VII are obtained and assuming the consents, waivers and approvals specifiedParent Parties or any of their Subsidiaries in Section 6.10(a) are obtained,connection with the execution, delivery and performance of this Agreement andby the Parent Parties or the consummation by the Parent Parties of the Transactions, except for (i) the filing of the pre-merger notification report under the HSR Act, (ii) such filings and reports as may be required pursuant to the applicable requirements of the Securities Act, the Exchange Act and any other applicable state or federal securities, takeover and “blue sky” Laws, (iii) the filing of the Certificates of Merger Transactionswith the Delaware Secretary of State as required by the PNR Parties doDGCL and, to the extent applicable, the DLLCA, (iv) any filings and approvals required under the rules and regulations of the NYSE and (v) such other consents, approvals, orders, authorizations, registrations, declarations, filings or notices the failure of which to be obtained or made, individually or in the aggregate, have not had and will not (i) except as couldwould not reasonably be expected to have a Parent Material Adverse Effect on(provided, that clause (D) of the PNR Parties, (x) constitute a breach or violationdefinition of or result in a default (or an event that, with notice or lapse“Material Adverse Effect” shall be disregarded for purposes of time or both, would become a default) under, or result in the termination or in a right of termination or cancellation of, or accelerate the performance required by, any note, bond, mortgage, indenture, deed of trust, license, franchise, lease, contract, agreement, joint venture or other instrument or obligation to which PNR or any of its Subsidiaries is a party or by which PNR or any of its Subsidiaries or properties is subject or bound, (y) contravene or conflictthis Section 4.5(b)).

Section 4.6 SEC Reports; Financial Statements.

(a) Parent has filed with or constitute a material violation of any provision of any Law binding upon or applicablefurnished to the PNR PartiesSEC on a timely basis all forms, reports, schedules, statements and other documents required to be filed with or anyfurnished to the SEC by Parent on or after January 1, 2019 (all such documents, together with all exhibits and schedules to the foregoing materials and all information incorporated therein by reference, the “Parent SEC Documents”). As of their respective Subsidiariesfiling dates (or, if amended or (z) result insuperseded by a filing prior to the creation of any Lien on any of the assets of the PNR Parties or their respective Subsidiaries’ assets, (ii) constitute a breach or violation of, or a default under, the PNR Certificate of Incorporation, the PNR USA Certificate of Incorporation, the MergerCo Certificate of Formation, the MergerCo LLC Agreement or the bylaws of PNR or PNR USA, or (iii) cause the Merger Transactions to be subject to Takeover Laws.

(e)Consents and Approvals. No consents or approvals of, or filings or registrations with, any Governmental Authority are necessary in connection with (i) the execution and delivery by the PNR Partiesdate of this Agreement, or (ii)then on the consummation by the PNR Parties of the Merger Transactions, except for (A) the filing of any required applications or notices with any state or foreign agencies of competent jurisdiction and approvaldate of such applications or notices, (B)filing), the filing with theParent SEC of the Registration Statement and the Proxy Statement/Prospectus, (C) the filing of the Certificate of Merger with the Secretary of State of the State of Delaware, (D) any consents, authorizations, approvals, filings or exemptions in connection with compliance with the rules of the NYSE, (E) such filings and approvals as may be required to be made or obtained under the securities or “Blue Sky” laws of various states in connection with the issuance of shares of New Common Stock pursuant to this Agreement, and (F) such other consents, authorizations, approvals, filings or registrations the absence or unavailability of which could not, either individually or in the aggregate, reasonably be expected to have a Material Adverse Effect on PNR.

(f)Financial Reports and the PNR SEC Documents. The PNR SEC Documents, as of their respective dates, (i) complied in all material respects as to form with the applicable requirements of the Securities Act, or the Exchange Act and the Sarbanes-Oxley Act, including, in each case, the rules and regulations promulgated thereunder, and none of the Parent SEC Documents contained, when filed (or, if amended prior to the date of this Agreement, as of the date of such amendment with respect to those disclosures that are amended), any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading.

(b) The financial statements (including the related notes and schedules thereto) included (or incorporated by reference) in the Parent SEC Documents (i) have been prepared in a manner consistent with the books and records of Parent and its Subsidiaries, (ii) have been prepared in accordance with GAAP, applied on a consistent basis during the periods involved (except as may be indicated in the notes thereto or, in the case mayof

unaudited statements, as permitted by Rule 10-01 of Regulation S-X of the SEC), (iii) comply as to form in all material respects with the published rules and regulations of the SEC with respect thereto and (iv) fairly present in all material respects the consolidated financial position of Parent and its Subsidiaries as of the dates thereof and their respective consolidated results of operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to normal and recurring year-end audit adjustments), all in accordance with GAAP and the applicable rules and regulations promulgated by the SEC. Since January 1, 2020, Parent has not made any change in the accounting practices or policies applied in the preparation of its financial statements, except as required by GAAP, SEC rule or policy or applicable Law. The books and records of Parent and its Subsidiaries have been, and are being, maintained in all material respects in accordance with GAAP (to the extent applicable) and any other applicable legal and accounting requirements and reflect only actual transactions.

(c) Parent has established and maintains disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Such disclosure controls and procedures are designed to ensure that information relating to Parent, including its consolidated Subsidiaries, required to be disclosed in Parent’s periodic and current reports under the Exchange Act is made known to Parent’s chief executive officer and its chief financial officer by others within those entities to allow timely decisions regarding required disclosures as required under the Exchange Act. The chief executive officer and chief financial officer of Parent have evaluated the effectiveness of Parent’s disclosure controls and procedures and, to the extent required by applicable Law, presented in any applicable Parent SEC Document that is a report on Form 10-K or Form 10-Q, or any amendment thereto, his or her conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by such report or amendment based on such evaluation.

(d) Parent and its Subsidiaries have established and maintain a system of internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) which is effective in providing reasonable assurance regarding the reliability of Parent’s financial reporting and the preparation of Parent’s financial statements for external purposes in accordance with GAAP. Parent has disclosed, based on its most recent evaluation of Parent’s internal control over financial reporting prior to the date hereof, to Parent’s auditors and audit committee (i) any significant deficiencies and material weaknesses in the design or operation of Parent’s internal control over financial reporting which would reasonably be expected to adversely affect Parent’s ability to record, process, summarize and report financial information and (ii) didany fraud, whether or not material, that involves management or other employees who have a significant role in Parent’s internal control over financial reporting.

(e) Since January 1, 2020, (i) neither Parent nor any of its Subsidiaries nor, to the knowledge of Parent, any director, officer, employee, auditor, accountant or representative of Parent or any of its Subsidiaries has received or otherwise had or obtained knowledge of any material complaint, allegation, assertion or claim, whether written or oral, regarding the accounting or auditing practices, procedures, methodologies or methods of Parent or any of its Subsidiaries or their respective internal accounting controls, including any material complaint, allegation, assertion or claim that Parent or any of its Subsidiaries has engaged in questionable accounting or auditing practices and (ii) no attorney representing Parent or any of its Subsidiaries, whether or not employed by Parent or any of its Subsidiaries, has reported evidence of a material violation of securities Laws, breach of fiduciary duty or similar violation by Parent or any of its Subsidiaries or any of their respective officers, directors, employees or agents to the Parent Board or any committee thereof or to any director or officer of Parent or any of its Subsidiaries.

(f) As of the date of this Agreement, there are no outstanding or unresolved comments in the comment letters received from the SEC staff with respect to the Parent SEC Documents. To the knowledge of Parent, none of the Parent SEC Documents is subject to ongoing review or outstanding SEC comment or investigation.

(g) Neither Parent nor any of its Subsidiaries is a party to, or has any commitment to become a party to, any joint venture, off balance sheet partnership or any similar Contract (including any Contract or arrangement relating to any transaction or relationship between or among Parent and any of its Subsidiaries, on the one hand, and any unconsolidated Affiliate, including any structured finance, special purpose or limited purpose entity or Person, on the other hand, or any “off balance sheet arrangements” (as defined in Item 303(a) of Regulation S-K

under the Exchange Act)), where the result, purpose or intended effect of such Contract is to avoid disclosure of any material transaction involving, or material liabilities of, Parent or any of its Subsidiaries in Parent’s or such Subsidiary’s published financial statements or other Parent SEC Documents.

(h) Parent is in compliance in all material respects with (i) the provisions of the Sarbanes-Oxley Act and (ii) the rules and regulations of the NYSE, in each case, that are applicable to Parent.

(i) No Subsidiary of Parent is required to file any form, report, schedule, statement or other document with the SEC.

Section 4.7 No Undisclosed Liabilities. Neither Parent nor any of its Subsidiaries has any liabilities or obligations of any nature, whether accrued, absolute, contingent or otherwise, known or unknown, whether due or to become due and whether or not required to be recorded or reflected on a balance sheet under GAAP, except (a) to the extent accrued or reserved against in the unaudited consolidated balance sheet of Parent and its Subsidiaries as of June 30, 2020 included in the Quarterly Report on Form 10-Q filed by Parent with the SEC on August 5, 2020 (including the notes thereto) (without giving effect to any amendment thereto filed on or after the date hereof), (b) for liabilities and obligations incurred in the ordinary course of business consistent with past practice since June 30, 2020, (c) liabilities under this Agreement or incurred in connection with the Transactions and (d) liabilities that, individually or in the aggregate, have not had and would not reasonably be expected to have a Parent Material Adverse Effect.

Section 4.8 Certain Information. None of the information supplied or to be supplied by or on behalf of the Parent Parties for inclusion or incorporation by reference in (a) the Form S-4 will, at the time the Form S-4 becomes effective under the Securities Act, contain any untrue statement of a material fact or omit to state aany material fact required to be stated therein or necessary to make the statements made therein, in the light of the circumstances under which they wereare made, not misleading or (b) the Joint Proxy Statement will, at the date it is first mailed to Parent Stockholders and to Company Stockholders and at the time of the Parent Stockholders Meeting and the Company Stockholders Meeting, contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they are made, not misleading. The historical financial statementsSubject to the first sentence of PNRSection 3.8, the Form S-4 and its consolidated Subsidiaries contained in or incorporated by reference into any such PNR SEC Document (including the related notes and schedules thereto) (A)Joint Proxy Statement will comply as to form in all material respects with the applicable requirementsprovisions of the Securities Act and the Exchange Act and (B) fairly present the financial position, results of operations, stockholders’ equityrules and cash flows, asregulations thereunder. Notwithstanding the case may be,foregoing, no Parent Party makes any representation or warranty with respect to statements included or incorporated by reference in the Form S-4 or the Joint Proxy Statement based on information supplied by or on behalf of the entityCompany Parties specifically for inclusion or entities to which they relateincorporation by reference therein.

Section 4.9 Absence of Certain Changes or Events. Since June 30, 2020, (a) as of the datesdate of this Agreement, Parent and its Subsidiaries have, in all material respects, conducted their businesses only in the ordinary course consistent with past practice; (b) there has not been any change, event or development or prospective change, event or development that, individually or in the aggregate, has had or would reasonably be expected to have a Parent Material Adverse Effect; (c) as of the date of this Agreement, neither Parent nor any of its Subsidiaries has suffered any material loss, damage, destruction or other casualty affecting any of its material properties or assets, whether or not covered by insurance; and (d) as of the date of this Agreement, none of Parent or any of its Subsidiaries has taken any action that, if taken after the date of this Agreement, would constitute a breach of any of the covenants set forth in Sections 5.1(b)(i), (vi) or (viii) (solely as it relates to the foregoing Sections 5.1(b)(i) or (vi)).

Section 4.10 Litigation. There is no Action pending or, to the knowledge of Parent, threatened against or affecting Parent or any of its Subsidiaries, any of their respective properties or assets, or any present or former officer, director or employee of Parent or any of its Subsidiaries in such individual’s capacity as such, other than any Action that, individually or in the aggregate, has not had and would not reasonably be expected to have, a Parent Material Adverse Effect. Neither Parent nor any of its Subsidiaries nor any of their respective properties or assets is subject to any outstanding judgment, order, injunction, rule or decree of any Governmental Entity that, individually or in the aggregate, has had or would reasonably be expected to have a Parent Material Adverse Effect.

Section 4.11 Compliance with Laws. Parent and each of its Subsidiaries are, and since January 1, 2019, have been, in compliance with all Laws (other than compliance with (i) ERISA and other Laws applicable to Parent Plans and other employee benefit matters, which is addressed solely in Section 4.12, (ii) Environmental Laws, which is addressed solely in Section 4.14 and (iii) Tax Laws, which is addressed solely in Section 4.15) applicable to their businesses, operations, properties or assets, except where any non-compliance, individually or the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect. None of Parent or any of its Subsidiaries has received, since January 1, 2019, a notice or other written communication alleging or relating to a possible violation of any Law applicable to their businesses, operations, properties or assets, except for such violations that, individually or in the periodsaggregate, have not had and would not reasonably be expected to have a Parent Material Adverse Effect. Parent and each of its Subsidiaries have in effect all Permits of all Governmental Entities necessary for them to own, lease or operate their properties and assets and to carry on their businesses and operations as now conducted, and, since January 1, 2019, there has occurred no violation of, default (with or without notice or lapse of time or both) under or event giving to others any right of revocation, non-renewal, adverse modification or cancellation of, with or without notice or lapse of time or both, any such Permit, nor would any such revocation, non-renewal, adverse modification or cancellation result from the consummation of the Transactions, except where the failure to have in effect such Permits or such violation or default or other event, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect.

Section 4.12 Benefit Plans.

(a) None of Parent, any of its Subsidiaries or any member of their Controlled Group has ever sponsored, maintained, contributed to or been required to contribute to or incurred any liability (contingent or otherwise) with respect to: (i) a “multiemployer plan” (within the meaning of ERISA section 3(37)), (ii) a Pension Plan that is subject to Title IV of ERISA or Section 412 of the Code, (iii) a Pension Plan which is a “multiple employer plan” as defined in Section 413 of the Code, or (iv) a “funded welfare plan” within the meaning of Section 419 of the Code.

(b) With respect to each “employee benefit plan” (within the meaning of section 3(3) of ERISA, whether or not subject to ERISA), “multiemployer plan” (within the meaning of ERISA section 3(37)), and all stock purchase, stock option, phantom stock or other equity-based plan, severance, employment, collective bargaining, change-in-control, fringe benefit, bonus, incentive, deferred compensation, supplemental retirement, health, life, or disability insurance, dependent care and all other employee benefit and compensation plans, agreements, programs, policies or other arrangements, whether or not subject to ERISA (including any funding mechanism therefor now in effect or required in the future as a result of the Transactions or otherwise), whether written or oral, under which any current or former employee, director or consultant of Parent or its Subsidiaries (or any of their dependents) has any present or future right to compensation or benefits or that Parent or its Subsidiaries sponsors or maintains, is making contributions to or has any present or future liability or obligation (contingent or otherwise) or with respect to which it is otherwise bound (collectively, the “Parent Plans”).

(c) With respect to the Parent Plans:

(i) each Parent Plan complies in all material respects in form and in operation with its terms and the applicable provisions of ERISA and the Code and all other applicable legal requirements;

(ii) no non-exempt prohibited transaction, as described in Section 406 of ERISA or Section 4975 of the Code has occurred with respect to any Parent Plan, and all contributions required to be made under the terms of any Parent Plan have been timely made;

(iii) each Parent Plan intended to be qualified under Section 401(a) of the Code has received a favorable determination, advisory and/or opinion letter, as applicable, from the IRS that it is so qualified and nothing has occurred since the date of such financial statements relate,letter that would reasonably be expected to cause the loss of the sponsor’s ability to rely upon such letter, and nothing has occurred that would reasonably be expected to result in the loss of the qualified status of such Parent Plan;

(iv) there is no Action (including any investigation, audit or other administrative proceeding) by the Department of Labor, the PBGC, the IRS or any other Governmental Entity or by any plan participant or beneficiary pending, or to the knowledge of Parent, threatened, relating to the Parent Plans, any fiduciaries thereof with respect to their duties to the Parent Plans or the assets of any of the trusts under any of the Parent Plans (other than routine claims for benefits) nor are there facts or circumstances that exist that could reasonably give rise to any such Actions;

(v) none of Parent, its Subsidiaries or any member of their Controlled Group has incurred any direct or indirect liability under ERISA, the Code or other applicable Laws in connection with the termination of, withdrawal from or failure to fund, any Parent Plan or other retirement plan or arrangement, and no fact or event exists that would reasonably be expected to give rise to any such liability;

(vi) Parent and its Subsidiaries do not maintain any Parent Plan that is a “group health plan” (as such term is defined in Section 5000(b)(1) of the Code) that has not been administered and operated in all material respects in compliance with the applicable requirements of COBRA and the PPACA, and Parent and its Subsidiaries are not subject to any liability, including additional contributions, fines, assessable payments, penalties or loss of Tax deduction as a result of such administration and operation;

(vii) none of the Parent Plans currently provides, or reflects or represents any liability to provide post-termination or retiree welfare benefits to any Person for any reason, except as may be required by COBRA, and none of Parent, its Subsidiaries or any members of their Controlled Group has any liability to provide post-termination or retiree welfare benefits to any Person or ever represented, promised or contracted to any employee or former employee of Parent (either individually or to Parent employees as a group) or any other Person that such employee(s) or other Person would be provided with post-termination or retiree welfare benefits, except to the extent required by statute or except with respect to a contractual obligation to reimburse any premiums such Person may pay in order to obtain health coverage under COBRA;

(viii) each Parent Plan is subject exclusively to United States Law; and

(ix) the execution and delivery of this Agreement and the consummation of the Transactions will not, either alone or in combination with any other event, (A) entitle any current or former employee, officer, director or consultant of Parent or any of its Subsidiaries to severance pay, unemployment compensation or any other similar termination payment, or (B) accelerate the time of payment or vesting, or increase the amount of or otherwise enhance any benefit due any such employee, officer, director or consultant.

(d) Neither Parent nor any of its Subsidiaries is a party to any agreement, contract, arrangement or plan (including any Parent Plan) that may reasonably be expected to result, separately or in the aggregate, in connection with the Transactions (either alone or in combination with any other events), in the payment of any “parachute payments” within the meaning of Section 280G of the Code. There is no agreement, plan or other arrangement to which any of Parent or any of its Subsidiaries is a party or by which any of them is otherwise bound to compensate any Person in respect of Taxes or other liabilities incurred with respect to Section 409A or 4999 of the Code.

(e) Each Parent Plan that constitutes in any part a Nonqualified Deferred Compensation Plan subject to Section 409A of the Code has been operated and maintained in all material respects in compliance with the 409A Authorities.

Section 4.13 Labor Matters.

(a) As of the date hereof, no employee of Parent or any of its Subsidiaries is covered by an effective or pending collective bargaining agreement or similar labor agreement or represented by a labor union or similar representative. To the knowledge of Parent, there has not been any activity since January 1, 2019 on behalf of any labor union, labor organization or similar employee group to organize any employees of Parent or any of its Subsidiaries. There are no (i) unfair labor practice charges or complaints against Parent or any of its Subsidiaries pending before the National Labor Relations Board or any other labor relations tribunal or authority and to the knowledge of Parent no such representations, claims or petitions are threatened, (ii) representation claims or

petitions pending before the National Labor Relations Board or any other labor relations tribunal or authority or (iii) grievances or pending arbitration proceedings against Parent or any of its Subsidiaries that arose out of or under any collective bargaining agreement, in each case, except such matters as, individually or in the aggregate, have not been and would not reasonably be expected to be material to Parent and its Subsidiaries, taken as a whole. Since January 1, 2019, there has not been, and as of the date of this Agreement there is not pending or, to the knowledge of Parent, threatened, any labor dispute, work stoppage, labor strike or lockout against Parent or any of its Subsidiaries by its employees.

(b) Parent and its Subsidiaries are in compliance in all respects with all Laws respecting employment and employment practices, terms and conditions of employment, collective bargaining, disability, immigration, health and safety, wages, hours and benefits, non-discrimination in employment, overtime classification, classification of employees and independent contractors, workers’ compensation and the collection and payment of withholding and/or payroll Taxes and similar Taxes, except where such noncompliance, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect. During the preceding three years, (i) neither Parent nor any of its Subsidiaries has effectuated a “plant closing” (as defined in the WARN Act) affecting any site of employment or one or more facilities or operating units within any site of employment or facility, (ii) there has not occurred a “mass layoff” (as defined in the WARN Act) in connection with Parent or any of its Subsidiaries affecting any site of employment or one or more facilities or operating units within any site of employment or facility and (iii) neither the Parent nor any of its Subsidiaries has engaged in layoffs or employment terminations sufficient in number to trigger application of any similar state, local or foreign Law.

(c) With respect to any current or former employee, officer, consultant or other service provider of Parent, there are no actions against Parent or any of its Subsidiaries pending, or to Parent’s knowledge, threatened to be brought or filed, in connection with the employment or engagement of any current or former employee, officer, consultant or other service provider of Parent, including, any claim relating to employment discrimination, harassment, retaliation, equal pay, employment classification or any other employment related matter arising under applicable Laws, except where such action, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect.

(d) Except with respect to any Parent Plan (which subject is addressed in Section 4.12 above), the execution and delivery of this Agreement and the consummation of the Transactions will not result in any breach or violation of, or cause any payment to be made under, any applicable Laws respecting labor and employment or any collective bargaining agreement to which Parent or any of its Subsidiaries is a party.

Section 4.14 Environmental Matters. Except for those matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Parent Material Adverse Effect:

(a) Each of Parent and its Subsidiaries (i) is and, for the past five years, has been in compliance with applicable Environmental Laws including with respect to all Environmental Permits, and (ii) has received all Environmental Permits. Such Environmental Permits were validly issued and are in full force and effect, and all applications, notices or other documents have been timely filed to effect timely renewal, issuance or reissuance of such Environmental Permits. To the knowledge of Parent, all Environmental Permits are expected to be issued or reissued on a timely basis on such terms and conditions as would reasonably be expected to enable Parent and its Subsidiaries to continue to conduct their operations in a manner substantially similar to the manner in which such operations are presently conducted.

(b) No Environmental Claim is pending or, to the knowledge of Parent, threatened against either Parent or any of its Subsidiaries. Neither Parent nor any of its Subsidiaries has received written notice of any Environmental Claim against any Person whose liability for the Environmental Claim has been retained or assumed either contractually or by operation of Law by Parent or any of its Subsidiaries.

(c) There have been no Releases of Hazardous Materials at any property currently or, to the knowledge of the Parent, formerly owned, operated or otherwise used by Parent or any of its Subsidiaries or, to the knowledge of the Parent, by any predecessors of Parent or of any Subsidiary of Parent, which Releases have

resulted or would reasonably be expected to result in liability to Parent or its Subsidiaries under Environmental Law. Neither Parent nor any of its Subsidiaries has handled, stored, transported, disposed of, arranged for or permitted the disposal of, or Released any Hazardous Materials in a manner that has resulted or would reasonably be expected to result in liability to Parent or its Subsidiaries under Environmental Law.

(d) There have been no environmental investigations, studies, audits or other analyses conducted during the past five years by or on behalf of, or that are in the possession of Parent or its Subsidiaries addressing material environmental matters with respect to any property owned, operated, or otherwise used by any of them that have not been delivered or otherwise made available to the Company prior to the date hereof.

Section 4.15 Taxes.

(a) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect:

(i) (A) all Tax Returns required by applicable Law to be filed by or on behalf of Parent or any of its Subsidiaries have been prepared and timely filed in accordance with U.S. generally accepted accounting principles consistently applied duringall applicable Laws (after giving effect to any extensions of time in which to make such filings), (B) any and all Taxes due and payable by Parent and its Subsidiaries have been paid in full, (C) Parent and its Subsidiaries have withheld and paid all Taxes required to have been withheld and paid and (D) as of the periods involved, excepttime of filing, all such Tax Returns were true and complete in each case as may be noted therein, subject to normal year-end audit adjustmentsall material respects (other than, in the case of unaudited statements.

(g)Absenceclause (A), (B) or (C) hereof, with respect to any Taxes or Tax Returns (or positions taken therein) which are being contested, or for which any position has been taken, in good faith and for which adequate reserves are reflected on the most recent balance sheet of Undisclosed Liabilities. Except as disclosedParent included in the audited financial statements (or notes thereto)Parent SEC Documents, as adjusted for operations in the ordinary course of business consistent with past practice since the date of such balance sheet);

(ii) there are no Liens for Taxes on any assets or properties of Parent or any of its Subsidiaries, except for statutory Liens for Taxes not yet delinquent or being contested in good faith (and for which adequate accruals or reserves have been established on the most recent balance sheet of Parent included in PNR’s Annual Report on Form 10-K for the year ended December 31, 2012, andParent SEC Documents);

(iii) there are no Actions now pending or now threatened in the financial statements (or notes thereto) included in subsequent PNR SEC Documents filed by PNR priorwriting against or with respect to the date hereof,Parent or any of its Subsidiaries (including a notice of deficiency or proposed judgment) with respect to any Tax;

(iv) neither PNRParent nor any of its consolidated subsidiaries had at December 31, 2012,Subsidiaries has granted any currently effective extension or has incurred since that date, any liabilitieswaiver of the limitation period with respect to the assessment or obligations (whether absolute, accrued, contingent or otherwise)collection of any nature, except (i) liabilities, obligationsTax;

(v) no claim which has resulted or contingencies that (A) are accrued or reserved againstcould reasonably be expected to result in an obligation to pay Taxes has been made in the financial statementslast three years by any Governmental Entity in a jurisdiction where Parent or any ofPNR included its Subsidiaries does not file a Tax Return that such Person is or may be subject to taxation by that jurisdiction;

(vi) neither Parent nor any of its Subsidiaries has any liability for the Taxes of any Person (other than Taxes of Parent or its Subsidiaries) (A) under Treasury Regulations Section 1.1502-6 (or any similar provision of state, local or non-U.S. Tax Law), (B) as a transferee or successor or (C) by Contract (other than pursuant to any Tax sharing or indemnification provisions contained in the PNR SEC Documents filed prior to the date hereof, or reflected in the notes thereto, (B) were incurred since December 31, 2012any agreement entered into in the ordinary course of business and not primarily relating to Tax (e.g., leases, credit agreements or other commercial agreements));

(vii) neither Parent nor any of its Subsidiaries has been either a “distributing corporation” or a “controlled corporation” (within the meaning of Section 355(a)(1)(A) of the Code) in a distribution of stock qualifying or intended to qualify for tax-free treatment, in whole or in part, under Section 355 of the Code in the two years prior to the date of this Agreement;

(viii) neither Parent nor any of its Subsidiaries has participated in, or is currently participating in, a “listed transaction” within the meaning of Treasury Regulations Section 1.6011-4(b)(2); and

(ix) neither Parent nor any of its Subsidiaries (A) is a party to or bound by any material Tax sharing, Tax indemnity, or Tax allocation agreement or (B) has any liability or potential liability to another party

under any such agreement, in each case other than pursuant to any such agreement or arrangement solely between or among any of Parent and its Subsidiaries, or any other customary partnership indemnification provisions in any partnership or limited liability company agreement of any Parent Subsidiary.

(b) At all times since its formation, (i) Merger Sub LLC has been treated as an entity disregarded as separate from Parent for U.S. federal income tax purposes and (ii) Opco Merger Sub LLC has been treated as an entity disregarded as separate from Parent for U.S. federal income tax purposes.

(c) Neither Parent nor Merger Sub Inc. is an “investment company” within the meaning of Section 368(a)(2)(F)(iii) of the Code.

(d) Parent has not taken or agreed to take any action, and is not aware, after reasonable diligence, of the existence of any fact or circumstance, that could reasonably be expected to prevent or impede the Integrated Mergers, taken together, from qualifying as a “reorganization” within the meaning of Section 368(a) of the Code.

Section 4.16 Contracts.

(a) For purposes of this Agreement, a “Parent Material Contract” shall include each Contract of the following types to which Parent or any of its Subsidiaries is a party or by which any of their respective properties or assets is bound as of the date hereof:

(i) any Contract identified on the lists of exhibits to the Parent SEC Documents;

(ii) any Contract that would be required to be filed by Parent as a “material contract” pursuant to Item 601(b)(10) of Regulation S-K under the Exchange Act;

(iii) any Contract that (A) materially limits the ability of Parent or any of its Subsidiaries (or, following the consummation of the Transactions, would reasonably be expected to materially limit the Surviving Company or the Opco Surviving Company) to compete in any line of business or with any Person or in any geographic area (including any Contract containing any area of mutual interest (but excluding areas of mutual interest under joint operating agreements), joint bidding area, joint acquisition area or non-compete or similar type of restriction), (B) materially restricts the right of Parent or any of its Subsidiaries (or, following the consummation of the Transactions, would reasonably be expected to materially limit the ability of the Surviving Company or the Opco Surviving Company) to sell to or purchase from any Person any products or services, or use, transfer or distribute, or enforce any of their rights with respect to, any of their material assets, or (C) grants the other party or any third Person “most favored nation” status with respect to any material obligation (other than pursuant to customary royalty pricing provisions in Oil and Gas Leases or customary preferential rights in joint operating agreements, unit agreements or participation agreements affecting the Oil and Gas Properties of Parent or any of its Subsidiaries);

(iv) any material joint venture, partnership or limited liability agreement, other than any customary joint operating agreements, unit agreements or participation agreements affecting the Oil and Gas Properties of Parent or any of its Subsidiaries;

(v) any Contract that constitutes a commitment of Parent or any of its Subsidiaries relating to Indebtedness and having an outstanding principal amount in excess of $100,000,000, other than agreements solely between or among Parent and its Subsidiaries;

(vi) any Contract involving any pending acquisition or disposition, directly or indirectly (by merger or otherwise), of assets or capital stock or other equity interests for aggregate consideration (in one or a series of transactions) under such Contract of $100,000,000 or more (other than acquisitions or dispositions of inventory or the purchase or sale of Hydrocarbons, in each case, in the ordinary course of business consistent with past practicespractice);

(vii) each joint development agreement, exploration agreement, participation, farmout, farmin or (C) relateprogram agreement or similar contract requiring Parent or any of its Subsidiaries to this Agreement, the MergerTransactions or the proposal of PNR with respect to the Merger or (ii) liabilities, obligations or contingenciesmake expenditures that (A) could notwould reasonably be expected eitherto exceed $100,000,000 in the aggregate during the 12-month period following the date of this Agreement, other than customary joint operating agreements and continuous development obligations under Oil and Gas Leases;

(viii) each Contract for any Derivative Transaction with a notional value in excess of $35,000,000;

(ix) each Contract to which Parent or any of its Subsidiaries is a party for the purchase, sale, swap or exchange of minerals or mineral rights having a value in excess of $100,000,000, in each case, for which such purchase, sale, swap or exchange of minerals or mineral rights remain pending (and excluding, for the avoidance of doubt, the purchase and sale of Hydrocarbons in the ordinary course of business consistent with past practices); and

(x) each Contract for lease of personal property or real property (other than Oil and Gas Properties) involving payments in excess of $100,000,000 in any calendar year or aggregate payments in excess of $200,000,000 that is not terminable without penalty or other liability to Parent (other than any ongoing obligation pursuant to such contract that is not caused by any such termination) within 90 days, other than Contracts related to drilling rigs.

(b) Except for matters which, individually or in the aggregate, have not had and would not reasonably be expected to have a Parent Material Adverse Effect (provided, that clause (D) of the definition of “Material Adverse Effect” shall be disregarded for purposes of this Section 4.16(b)), (i) each Parent Material Contract is valid and binding on PNR or (B) that have been discharged or paidParent and any of its Subsidiaries to the extent such Subsidiary is a party thereto, as applicable, and to the knowledge of Parent, each other party thereto, and is in full priorforce and effect and enforceable in accordance with its terms, subject, as to the date hereof. Notwithstanding anythingenforceability, to the contrary herein, PNR makesCreditors’ Rights, and (ii) there is no representationpending or warranty with respect tounresolved default under any liability or obligation of MLPParent Material Contract by Parent or any of its Subsidiaries.Subsidiaries or, to the knowledge of Parent, any other party thereto, and no event or condition has occurred that remains pending or unresolved that constitutes, or, after notice or lapse of time or both, would reasonably be expected to constitute, a default on the part of Parent or any of its Subsidiaries or, to the knowledge of Parent, any other party thereto under any such Parent Material Contract, nor has Parent or any of its Subsidiaries received any notice of any such default, event or condition.

(h)Compliance with LawSection 4.17 Insurance. PNRParent and each of its Subsidiaries are covered by valid and currently effective insurance policies issued in favor of Parent or one or more of its Subsidiaries that are customary and adequate for companies of similar size in the industries and locations in which Parent and its Subsidiaries operate. With respect to each material insurance policy issued in favor of Parent or any of its Subsidiaries, or pursuant to which Parent or any of its Subsidiaries is a named insured or otherwise a beneficiary, as well as each historic incurrence-based policy still in force, (a) such policy is in compliance withfull force and effect and all premiums due thereon have been paid, (b) neither Parent nor any of its Subsidiaries is in breach or default, and has not intaken any action or failed to take any action which (with or without notice or lapse of time, or both) would constitute such a breach or default, under or in violationwould permit termination or modification of, any applicable Law, except where such non-compliance, defaultpolicy and (c) to the knowledge of Parent, no insurer issuing any such policy has been declared insolvent or violation couldplaced in receivership, conservatorship or liquidation. No notice of cancellation or termination has been received with respect to any such policy, nor will any such cancellation or termination result from the consummation of the Transactions.

Section 4.18 Properties.

(a) Except as would not reasonably be expected to have, individually or in the aggregate, a Parent Material Adverse Effect, Parent or one of its Subsidiaries has good and valid title to, or valid leasehold or other ownership interest or rights in, each of the material real properties (except for any of Parent’s or any its Subsidiaries’ Oil and Gas Properties, which are subject to Section 4.25 and shall not constitute a Parent Property for the purposes of this Agreement) reflected as an asset on PNR. Since December 31, 2012,the most recent balance sheet of Parent included in the Parent SEC Documents (each, a “Parent Property”), in each case free and clear of all Liens, defects or imperfections, except for Permitted Liens or Liens, defects or imperfections which do not and would not reasonably be expected to, individually or in the aggregate, materially impair the continued use and operation of the real properties to which they relate in the conduct of the business of Parent and each of its Subsidiaries as presently conducted. Except for matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Parent Material Adverse Effect, neither PNRParent nor any of its Subsidiaries has received notice to the effect that there are any written noticecondemnation, expropriation or other proceedings that are pending or, to PNR’s Knowledge, other communication fromthe knowledge of Parent, threatened with respect to any Governmental Authority regardingmaterial portion of any actual or possible violation of or failure to comply with, any Law, exceptthe Parent Properties.

(b) Except as couldwould not reasonably be expected to have, individually or in the aggregate, a Parent Material Adverse Effect, on PNR.

(i)Material Contracts.

(i) Except for this Agreement, as of the date hereof, neither PNRParent nor any of its Subsidiaries has leased or otherwise granted to any Person the right to use or occupy any the Parent Property or any portion thereof, (ii) there are no outstanding options, rights of first offer or rights of first refusal to purchase any Parent Property or any portion thereof or interest therein, (iii) there are no boundary disputes relating to any Parent Property and no encroachments materially and adversely affecting the use of any Parent Property and (iv) with respect to each Parent Property, all material buildings, structures, fixtures and improvements are in all respects adequate and sufficient and in satisfactory condition to support the operations of Parent and each of its Subsidiaries as presently conducted.

(c) Each lease pursuant to which Parent or one of its Subsidiaries has a leasehold interest in the Parent Properties, to the knowledge of Parent, is a partyin full force and effect and is valid and enforceable against the parties thereto in accordance with its terms, subject, as to or bound by any PNR Material Contract that is requiredenforceability, to Creditors’ Rights, except for such failure to be filed as an exhibit toin full force and effect that, individually or in the PNR SEC Documents thataggregate, has not been so filed.

(ii) Except as couldhad and would not reasonably be expected to have a Parent Material Adverse Effect.

Section 4.19 Intellectual Property. Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect, on PNR, (A) each PNReither Parent or a Subsidiary of Parent owns, or is licensed or otherwise possesses adequate rights to use (in the manner and to the extent it has used the same), all Intellectual Property of any kind used in their respective businesses as currently conducted (collectively, the “ParentIntellectual Property”). Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Contract is valid and binding and in full force and effect, (B)Adverse Effect, (a) there are no eventpending or, condition exists which constitutes a default onto the partknowledge of PNRParent, threatened claims by any Person alleging infringement, misappropriation, dilution, or other violation by Parent or any of its Subsidiaries of the Intellectual Property of any Person; (b) the conduct of the businesses of Parent and its Subsidiaries has not infringed, misappropriated, diluted, or otherwise violated and does not infringe, misappropriate, dilute or otherwise violate, any Intellectual Property of any Person; (c) neither Parent nor any of its Subsidiaries has made any claim of infringement, misappropriation or other violation by others of its rights to or in connection with the Parent Intellectual Property; (d) to the knowledge of Parent, no Person is infringing, misappropriating or diluting any Parent Intellectual Property; (e) Parent and its Subsidiaries have taken reasonable steps to protect the confidentiality of their trade secrets and the security of their computer systems and networks; and (f) the consummation of the Transactions will not result in the loss of, or give rise to any right of any third party to terminate, any of Parent’s or any of its Subsidiaries’ rights or obligations under, any such PNR Material Contract,agreement under which Parent or any of its Subsidiaries grants to any Person, or any Person grants to Parent or any of its Subsidiaries, a license or right under or with respect to any Parent Intellectual Property.

Section 4.20 State Takeover Laws. As of the date hereof and (C)at all times on or prior to the KnowledgeClosing, the Parent Board has taken all actions so that the restrictions applicable to business combinations contained in Section 203 of PNR,the DGCL are, and will be, inapplicable to the execution, delivery and performance of this Agreement and the timely consummation of the Transactions. No Takeover Laws or any similar anti-takeover provision in the Parent Charter or Parent Bylaws is, or at the Effective Time will be, applicable to this Agreement or the Transactions.

Section 4.21 No Rights Plan. As of the date of this Agreement, there is no stockholder rights plan, “poison pill” anti-takeover plan or other similar device in effect to which Parent is a party or is otherwise bound.

Section 4.22 Related Party Transactions. No Related Party of Parent is a party to such PNR Materialany Contract is in defaultwith or binding upon Parent or any of its Subsidiaries or any of their respective properties or assets or has any interest in any property owned by Parent or any of its Subsidiaries or has engaged in any transaction with any of the foregoing within the last 12 months, in each case, that is of a type that would be required to be disclosed in the Parent SEC Documents pursuant to Item 404 of Regulation S-K (a “Parent Affiliate Transaction”) that has not been so disclosed. No Related Party of Parent or any of its Subsidiaries owns, directly or indirectly, on an individual or joint basis, any controlling interest in, or serves as an officer or director or in another similar capacity of, any supplier or other independent contractor of Parent or any of its Subsidiaries, or any organization which has a Contract with Parent or any of its Subsidiaries.

Section 4.23 Certain Payments. Neither Parent nor any of its Subsidiaries (nor, to the knowledge of Parent, any of their respective directors, executives, representatives, agents or employees) (a) has used or is using any corporate funds for any illegal contributions, gifts, entertainment or other unlawful expenses relating to political activity, (b) has used or is using any corporate funds for any direct or indirect unlawful payments to any foreign or domestic governmental officials or employees, (c) has violated or is violating any provision of the Foreign Corrupt Practices Act of 1977, (d) has established or maintained, or is maintaining, any unlawful fund of corporate monies or other properties or (e) has made any bribe, unlawful rebate, payoff, influence payment, kickback or other unlawful payment of any nature.

Section 4.24 Rights-of-Way. Each of Parent and its Subsidiaries has such Rights-of-Way as are sufficient to conduct its business in the manner currently conducted, except for such Rights-of-Way the absence of which, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect. Each of Parent and its Subsidiaries conducts its business in a manner that does not violate any of the Rights-of-Way and no unresolved event has occurred that allows, or after notice or lapse of time would reasonably be expected to allow, revocation or termination thereof or would reasonably be expected to result in any impairment of the rights of the holder of any such Rights-of-Way, except for such violations, revocations, terminations and impairments that, individually or in the aggregate have not had and would not reasonably be expected to have a Parent Material Adverse Effect. All pipelines operated by Parent and its Subsidiaries are subject to Rights-of-Way or are located on real property owned or leased by Parent, and there are no gaps (including any gap arising as a result of any breach by Parent or any of its Subsidiaries of the terms of any Rights-of-Way) in the Rights-of-Way other than gaps that would not reasonably be expected to have, individually or in the aggregate, a Parent Material Adverse Effect.

Section 4.25 Oil and Gas Matters.

(a) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect, and except for (i) property sold or otherwise disposed of in the ordinary course of business since the date of the letter prepared by Netherland, Sewell & Associates, Inc. (the “Parent Independent Petroleum Engineers”) auditing Parent’s internally prepared reserve report relating to Parent interests referred to therein as of December 31, 2019 (the “Parent Reserve Report Letter”), (ii) property reflected in the Parent Reserve Report Letter or in the Filed Parent SEC Documents as having been sold or otherwise disposed of, other than sales, exchanges, swaps or dispositions after the date hereof in accordance with Section 5.1(b) or (iii) Oil and Gas Leases that have expired or terminated in accordance with the terms thereof on a date on or after the date hereof, Parent and its Subsidiaries have good and defensible title to all Oil and Gas Properties forming the basis for the reserves reflected in the Parent Reserve Report Letter and in each case as attributable to interests owned (or purported to be held or owned) by Parent and each of its Subsidiaries. For purposes of the foregoing sentence, “good and defensible title” means that Parent’s or one or more of its Subsidiaries’, as applicable, title (as of the date hereof and as of the Closing Date) to each of the Oil and Gas Properties held or owned by them (or purported to be held or owned by them) that (1) entitles Parent (or one or more of its Subsidiaries, as applicable) to receive (after satisfaction of all Production Burdens applicable thereto), not less than the net revenue interest share shown in the Parent Reserve Report Letter of all Hydrocarbons produced from such Oil and Gas Properties throughout the life of such Oil and Gas Properties except, in each case, for (x) any decreases in connection with those operations in which Parent or any of its Subsidiaries may elect after the date hereof to be a non-consenting co-owner, (y) any decreases resulting from the establishment or amendment, after the date hereof, of pools or units, and (z) decreases required to allow other working interest owners to make up past underproduction or pipelines to make up past under deliveries, (2) obligates Parent (or one or more of its Subsidiaries, as applicable) to bear a percentage of the costs and expenses for the maintenance and development of, and operations relating to, such Oil and Gas Properties, of not greater than the working interest shown on the Parent Reserve Report Letter for such Oil and Gas Properties except, in each case, for (x) increases that are accompanied by a proportionate (or greater) increase in the net revenue interest in such Oil and Gas Properties, and (y) increases resulting from contribution requirements with respect to defaulting or non-consenting co-owners under applicable operating agreements or Laws that are accompanied by a proportionate (or greater) net revenue interest in such Oil and Gas Properties and (3) is free and clear of all Liens,

defects and imperfections, except for Permitted Liens and Liens, defects and imperfections which, individually or in the aggregate, would not reasonably be expected to materially impair the continued use and operation of the Oil and Gas Properties to which they relate in the conduct of business of Parent and each of its Subsidiaries as presently conducted.

(b) Except for any such matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Parent Material Adverse Effect, the factual, non-interpretive data supplied to the Parent Independent Petroleum Engineers by or on behalf of Parent and its Subsidiaries for purposes of auditing Parent’s internally prepared reserve report and preparing the Parent Reserve Report Letter that was material to such firm’s audit of Parent’s internally prepared estimates of proved oil and gas reserves attributable to the Oil and Gas Properties of Parent and its Subsidiaries in connection with the preparation of the Parent Reserve Report Letter was, as of the time provided, accurate in all respects. Except for any such matters that, individually or in the aggregate, have not had and would not reasonably be expected to have a Parent Material Adverse Effect, the oil and gas reserve estimates of Parent set forth in the Parent Reserve Report Letter are derived from reports that have been prepared by Parent in accordance with customary industry practices, and such reserve estimates fairly reflect, in all respects, the oil and gas reserves of Parent at the dates indicated therein and are in accordance with SEC guidelines applicable thereto applied on a consistent basis throughout the periods involved. Except for changes generally affecting the oil and gas exploration, development and production industry (including changes in commodity prices) and normal depletion by production, there has been no change in respect of the matters addressed in the Parent Reserve Report Letter that, individually or in the aggregate, has had or would reasonably be expected to have, a Parent Material Adverse Effect.

(c) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have, a Parent Material Adverse Effect, (i) all delay rentals, shut-in royalties and similar payments owed to any Person or individual under (or otherwise with respect to) any Oil and Gas Leases of Parent or any of its Subsidiaries have been properly and timely paid, (ii) all Production Burdens with respect to any Oil and Gas Properties owned or held by Parent or any of its Subsidiaries have been timely and properly paid (in each case, except such Production Burdens (x) as are being currently paid prior to delinquency in the ordinary course of business, (y) currently held as suspense funds or (z) the amount or validity of which is being contested in good faith by appropriate proceedings and for which appropriate reserves have been established) and (iii) none of Parent or any of its Subsidiaries (and, to Parent’s knowledge, no third party operator) has violated any provision of, or taken or failed to take any act that, with or without notice, lapse of time, or both, would constitute a default under the provisions of any Oil and Gas Lease (or entitle the lessor thereunder to cancel or terminate such Oil and Gas Lease) included in the Oil and Gas Properties owned or held by Parent or any of its Subsidiaries.

(d) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have, a Parent Material Adverse Effect, all proceeds from the sale of Hydrocarbons attributable to Parent’s and its Subsidiaries’ interests in the Oil and Gas Properties are being received by them in a timely manner and are not being held in suspense (by Parent, any of its Subsidiaries, any third party operator thereof or any other Person) for any reason other than awaiting preparation and approval of division order title opinions for recently drilled Wells.

(e) All of the Wells and all water, CO2, injection or other wells located on the Oil and Gas Leases of Parent and its Subsidiaries or otherwise associated with an Oil and Gas Property of Parent or its Subsidiaries have been drilled, completed and operated within the limits permitted by the applicable contracts entered into by Parent or any of its Subsidiaries related to such wells and applicable Law, and all drilling and completion (and plugging and abandonment) of such wells and all related development, production and other operations have been conducted in compliance with all applicable Law except, in each case, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect.

(f) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect, none of the material Oil and Gas Properties of Parent or its Subsidiaries is subject to any preferential purchase, consent or similar right that would become operative as a result of the consummation of the Transactions.

(g) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect, to Parent’s knowledge, there are no Wells that constitute a part of Parent’s or its Subsidiaries’ Oil and Gas Properties for which Parent or any of its Subsidiaries has received a notice, claim, demand or order from any Governmental Entity notifying, claiming, demanding or requiring that such Well(s) be temporarily or permanently plugged and abandoned that remains pending or unresolved.

(h) As of the date of this Agreement, there is no outstanding authorization for expenditure or similar request or invoice for funding or participation under any agreement or contract which are binding on Parent, its Subsidiaries or any of Parent’s or its Subsidiaries’ Oil and Gas Properties and which Parent reasonably anticipates will individually require expenditures by Parent or its Subsidiaries in excess of $10,000,000 (net to Parent’s or its Subsidiaries’ interest).

Section 4.26 Derivative Transactions.

(a) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect, all Derivative Transactions entered into by Parent or any of its Subsidiaries or for the account of any of its customers as of the date of this Agreement were entered into in accordance with applicable Laws, and in accordance with the investment, securities, commodities, risk management and other policies, practices and procedures employed by Parent and its Subsidiaries, and were entered into with counterparties believed at the time to be financially responsible and able to understand (either alone or in consultation with their advisers) and to bear the risks of such Derivative Transactions.

(b) Except as, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect, Parent and each of its Subsidiaries have duly performed in all respects all of their respective obligations under the Derivative Transactions to the extent that such obligations to perform have accrued, and there are no breaches, violations, collateral deficiencies, requests for collateral or demands for payment, or defaults or allegations or assertions of such by any party thereunder.

(j)Operations(c) The Filed Parent SEC Documents accurately summarize, in all material respects, the outstanding positions under any Derivative Transaction of MergerCoParent and its Subsidiaries, including Hydrocarbon and financial positions under any Derivative Transaction of Parent attributable to the production and marketing of Parent and its Subsidiaries, as of the dates reflected therein.

Section 4.27 Regulatory Matters.

(a) Parent is not (i) an “investment company” or a company “controlled” by an “investment company” within the meaning of the U.S. Investment Company Act of 1940 or (ii) a “holding company,” a “subsidiary company” of a “holding company,” an Affiliate of a “holding company,” a “public utility” or a “public-utility company,” as each such term is defined in the U.S. Public Utility Holding Company Act of 2005.

(b) Parent and each of its Subsidiaries are in compliance with the Natural Gas Act and the rules, regulations, and orders of the FERC promulgated thereunder, such that any non-compliance, individually or in the aggregate, has not had and would not reasonably be expected to have a Parent Material Adverse Effect. Neither Parent nor any of its Subsidiaries are subject to any non-public investigation or audit by the FERC.

Section 4.28 Brokers. MergerCoNo broker, investment banker, financial advisor or other Person, other than Goldman Sachs & Co. LLC and Morgan Stanley & Co. LLC (the “Parent Financial Advisors”), the fees and expenses of which will be paid by Parent, is entitled to any broker’s, finder’s, financial advisor’s or other similar fee or commission in connection with the Transactions based upon arrangements made by or on behalf of any Parent Party or any of its Affiliates.

Section 4.29 Opinions of Financial Advisors. On or prior to the date of this Agreement, Parent has received the opinion of each of the Parent Financial Advisors to the effect that, as of date of such opinion, and based upon and subject to the various assumptions made, procedures followed, matters considered, and qualifications and limitations set forth therein, the Exchange Ratio is fair, from a financial point of view, to Parent, and signed true and complete copies of such opinions will be provided to the Company promptly after the receipt thereof by Parent solely for informational purposes and it is agreed and understood that such opinions may not be relied upon by the Company, or any director, officer or employee of the Company.

Section 4.30 Merger Subs.

(a) Merger Sub Inc. is a direct, wholly owned subsidiary of Parent that was formed solely for the purpose of engaging in the First Company Merger. Since the date of its incorporation and prior to the Effective Time, Merger Transactions andSub Inc. has not engaged in no businessany activities other than the execution of this Agreement, the performance of its obligations hereunder, and matters ancillary thereto, and prior to the Effective Time will have no assets, liabilities or obligations of any nature other than those incident to its formation and pursuant to this Agreement and the First Company Merger.

(b) Opco Merger Sub LLC is a direct, wholly owned subsidiary of Parent that was formed solely for the purpose of engaging in the Opco Merger. Since the date of its incorporation and prior to the Effective Time, Opco Merger Sub LLC has not engaged in any activities other than the execution of this Agreement, the performance of its obligations hereunder, and matters ancillary thereto, and prior to the Effective Time will have no assets, liabilities or obligations of any nature other than those incident to its formation and pursuant to this Agreement and the Opco Merger.

(c) Merger Sub LLC is a direct, wholly owned subsidiary of Parent that was formed solely for the purpose of engaging in the Second Company Merger. Since the date of its incorporation and prior to the Second Company Merger Effective Time, Merger Sub LLC has not engaged in any activities other than the execution of this Agreement, the performance of its obligations hereunder, and matters ancillary thereto, and prior to the Second Company Merger Effective Time will have no assets, liabilities or obligations of any nature other than those incident to its formation and pursuant to this Agreement and the Second Company Merger.

Section 4.31 Ownership of Company Stock. Neither Parent nor any of its Subsidiaries owns any shares of Company Class A Common Stock, Company Class B Common Stock or Opco Units (or other securities convertible into, exchangeable for or exercisable for shares of Company Class A Common Stock, Company Class B Common Stock or Opco Units).

Section 4.32 No Other Representations or Warranties.

(a) Except for the representations and warranties contained in this Article IV and the corresponding representations and warranties set forth in Parent’s officers’ certificate to be delivered pursuant to Section 6.3(c), each Company Party acknowledges that no Parent Party nor any other Person on behalf of a Parent Party makes any other express or implied representation or warranty with respect to Parent or any of its Subsidiaries or their respective businesses, operations, assets, liabilities or conditions (financial or otherwise) with respect to any other information provided to the Company Parties in connection with entering into this Agreement or the Transactions, and engaging in the Merger Transactions.

(k)No Brokers. No actionParent Parties hereby disclaim any such other representations or warranties. In particular, without limiting the foregoing disclaimer, no Parent Party nor any other Person on behalf of Parent makes or has been takenmade any representation or warranty, except for the representations and warranties made by the PNRParent Parties that would give risein this Article IV and the corresponding representations and warranties set forth in Parent’s officers’ certificate to be delivered pursuant to Section 6.3(c), to any valid claim againstCompany Party or any party hereto for a brokerage commission, finder’s feeof their respective Affiliates or other like paymentRepresentatives with respect to the Merger Transactions.

(l)Ownership of MLP Common Units. PNR USA owns 18,721,200 MLP Common Units (the “PNR USA Common Units”), which represent all MLP Common Units held by(i) any PNRfinancial projection, forecast, estimate, budget or prospect information relating to any Parent Party or any of its respective Subsidiaries or MLP GP.

(m)No Material Adverse Effect. Since December 31, 2012its businesses; or (ii) any oral or written information presented to any Company Party or its Affiliates or Representatives in the datecourse of their due diligence investigation of Parent, the negotiation of this Agreement thereor in the course of the Transactions. No Parent Party nor any other Person will have or be subject to any liability to any Company Party or any other Person resulting from the distribution to any Company Party, or any Company Party’s use of, any such information, including any information, documents, projections, forecasts or other material made available to the Company Parties in certain “data rooms,” “virtual data rooms,” management presentations or in any other form in expectation of, or in connection with, the Transactions. Notwithstanding the foregoing, nothing in this Section 4.32 shall limit any Company Party’s remedies with respect to claims of Fraud arising from or relating to the express written representations and warranties made by the Parent Parties in this Article IV and the corresponding representations and warranties set forth in Parent’s officers’ certificate to be delivered pursuant to Section 6.3(c).

(b) Notwithstanding anything contained in this Agreement to the contrary, the Parent Parties acknowledge and agree that no Company Party nor any other Person on behalf of the Company has made or is

making any representations or warranties relating to any Company Party or its Subsidiaries whatsoever, express or implied, beyond those expressly given by the Company Parties in Article III, including any implied representation or warranty as to the accuracy or completeness of any information regarding any Company Party furnished or made available to the Parent Parties or any of their respective Representatives, and that the Parent Parties have not relied on any such other representation or warranty not set forth in this Agreement. Without limiting the generality of the foregoing, the Parent Parties acknowledge that, except for the representations and warranties contained in this Article IV and the corresponding representations and warranties set forth in Parent’s officers’ certificate to be delivered pursuant to Section 6.3(c), no representations or warranties are made with respect to any projections, forecasts, estimates, budgets or prospect information that may have been a Material Adverse Effect on PNR.made available to the Parent Parties or any of their respective Representatives (including in certain “data rooms,” “virtual data rooms,” management presentations or in any other form in expectation of, or in connection with, the Transactions).

ARTICLE VIV

COVENANTS

The MLP Parties hereby covenantSection 5.1 Conduct of Business.

(a) Conduct of Business by the Company. Except as otherwise expressly required or permitted by this Agreement, as set forth in Section 5.1(a) of the Company Disclosure Letter or as may be required by Law (including “shelter-in-place,”“stay-at-home” and similar Laws), during the period from the date of this Agreement until the Effective Time, except as consented to in writing by Parent (which consent shall not be unreasonably withheld, conditioned or delayed), the Company shall, and shall cause each of its Subsidiaries to, use commercially reasonable efforts to (i) carry on its business in the ordinary course in all material respects, and (ii) preserve substantially intact its business organization, substantially preserve its assets, rights and properties in good repair and condition, keep available in all material respects the services of its current officers, employees and consultants and preserve its goodwill and its relationships with material customers, suppliers, licensors, licensees, distributors and others having material business dealings with it. In addition to and without limiting the generality of the foregoing, during the period from the date of this Agreement until the Effective Time, except as otherwise expressly required or permitted by this Agreement, as set forth in Section 5.1(a) of the Company Disclosure Letter or as may be required by Law (including “shelter-in-place,”“stay-at-home” and similar Laws), the Company shall not, and shall not permit any of its Subsidiaries, without Parent’s prior written consent (which consent shall not be unreasonably withheld, conditioned or delayed), to:

(i) (A) declare, set aside or pay any dividends on, or make any other distributions (whether in cash, stock or property) in respect of, any of its capital stock or other equity interests, except for (x) quarterly cash dividends by the Company on the shares of Company Class A Common Stock not to exceed $0.05 per share and corresponding cash distributions by Opco LLC on the Opco LLC Units not to exceed $0.05 per Opco LLC Unit, in each case with customary record and payment dates, (y) dividends by a wholly-owned Subsidiary of the Company or wholly-owned Subsidiary of Opco LLC to its parent or parents or (z) any “Tax Related Distribution” pursuant to Section 6.2 of the Opco LLC Agreement, (B) purchase, redeem or otherwise acquire shares of capital stock or other equity interests of the Company or its Subsidiaries or any options, warrants, or rights to acquire any such shares or other equity interests or (C) split, combine, reclassify or otherwise amend the terms of any of its capital stock or other equity interests or issue or authorize the issuance of any other securities in respect of, in lieu of or in substitution for shares of its capital stock or other equity interests, other than, in each case, in respect of (I) an exchange of Opco LLC Units (together with the same number of shares of Company Class B Common Stock) in accordance with the Company Charter and Section 4.7 of the Opco LLC Agreement or (II) any Company Restricted Stock Awards, Company RSU Awards or Company PRSU Awards outstanding on the Measurement Date, or issued after the Measurement Date in accordance with this Agreement, in each case in accordance with their terms as in effect on the Measurement Date or the date of such later issuance;

(ii) issue, deliver, sell, grant, pledge or otherwise encumber or subject to any Lien (other than any Permitted Lien) any shares of its capital stock or other equity interests or any securities convertible into, or

exchangeable for or exercisable for any such shares or other equity interests, or any rights, warrants or options to acquire, any such shares or other equity interests, or any stock appreciation rights, “phantom” stock rights, performance units, rights to receive shares of capital stock of the Company on a deferred basis or other rights linked to the value of shares of Company Class A Common Stock or Company Class B Common Stock, including pursuant to Contracts as in effect on the date hereof (other than the issuance of shares of Company Class A Common Stock (A) upon the settlement of Company RSU Awards or Company PRSU Awards outstanding on the Measurement Date or issued after the Measurement Date in accordance with this Agreement, in each case, in accordance with their terms or the terms of any other contract or agreement governing such Company RSU Awards or Company PRSU Awards, in each case, as in effect on the Measurement Date or the date of such later issuance, (B) upon an exchange of Opco LLC Units (together with the same number of shares of Company Class B Common Stock) in accordance with the Company Charter and Section 4.7 of the Opco LLC Agreement), or (C) issued as a dividend made in accordance with Section 5.1(a)(i);

(iii) amend or otherwise change, or cause, authorize or propose to amend or otherwise change, any of the Company Organizational Documents;

(iv) directly or indirectly acquire or agree to acquire (A) by merging or consolidating with, PNR,purchasing a substantial equity interest in or a substantial portion of the assets of, making an investment in or loan or capital contribution to or in any other manner, any corporation, partnership, association or other business organization or division thereof or (B) any assets that are otherwise material to the Company and the PNR Parties hereby covenantits Subsidiaries, in each case other than (1) upon reasonable prior notice to and consultation with Parent, the exchange or swap of Oil and Gas Properties or other assets in the ordinary course of business consistent with past practice (other than the exchange or swap of any Oil and Gas Properties or other assets located directly adjacent to any Oil and Gas Properties of Parent), (2) transactions solely between the Company and Opco LLC, solely between the Company or Opco LLC and a wholly-owned Subsidiary of the Company or Opco LLC, or solely among wholly-owned Subsidiaries of the Company or Opco LLC or (3) acquisitions as to which the aggregate amount of the consideration paid or transferred by the Company and its Subsidiaries in connection with all such acquisitions would not exceed $25,000,000;

(v) directly or indirectly (including by merger or consolidation with any Person) sell, lease, swap, exchange, farmout, license, sell and leaseback, abandon, mortgage or otherwise encumber or subject to any Lien (other than Permitted Liens) or otherwise dispose in whole or in part of any of its material properties, assets or rights or any interest therein, in each case other than (A) upon reasonable prior notice to and consultation with Parent, the exchange or swap of Oil and Gas Properties or other assets in the ordinary course of business consistent with past practice (other than the exchange or swap of any Oil and Gas Properties or other assets located directly adjacent to any Oil and Gas Properties of Parent), (B) sales, leases, exchanges, swaps or dispositions for which the consideration is less than $25,000,000 in the aggregate, (C) the sale of Hydrocarbons in the ordinary course of business consistent with past practice, or (D) the sale or other disposition of equipment that is surplus, obsolete or replaced made in the ordinary course of business consistent with past practice;

(vi) adopt or enter into a plan of complete or partial liquidation, dissolution, restructuring, recapitalization or other reorganization, other than transactions among wholly-owned Subsidiaries of the Company or Opco LLC;

(vii) (A) incur, create, assume or otherwise become liable for, or repay or prepay, any Indebtedness, or amend, modify or refinance any Indebtedness (other than (1) Indebtedness incurred in the ordinary course of business consistent with past practice, (2) Indebtedness incurred by the Company that is owed to Opco LLC or any wholly-owned Subsidiary of the Company or Opco LLC or by any Subsidiary of the Company that is owed to the Company or Opco LLC or any wholly-owned Subsidiary of the Company or Opco LLC, (3) guarantees by the Company of Indebtedness of Opco LLC or any wholly-owned Subsidiary of the Company or Opco LLC and guarantees by any Subsidiary of the Company of Indebtedness of the Company, Opco LLC or any other wholly-owned Subsidiary of the Company or Opco LLC, (4) Indebtedness incurred under the Company’s revolving credit facility (as existing on the date of this Agreement) in the ordinary course of business consistent with past practice or (5) Indebtedness in an amount not to exceed $10,000,000 in the

aggregate) or (B) make any loans, advances or capital contributions to, or investments in, any other Person (other than (1) the Company, Opco LLC or any direct or indirect wholly-owned Subsidiary of the Company or Opco LLC, (2) advances for expenses required under customary joint operating agreements to operators of Oil and Gas Properties of the Company or any of its Subsidiaries or (3) advances for reimbursable employee expenses in the ordinary course of business consistent with past practice);

(viii) incur or commit to incur any capital expenditures or authorizations or commitments with respect thereto that in the aggregate are in excess of 105% of the aggregate amount provided for in the capital expenditure budget set forth in Section 5.1(a)(viii) of the Company Disclosure Letter, other than (A) capital expenditures to repair damage resulting from insured casualty events or required on an emergency basis or for the safety of individuals, assets or the environment (provided that the Company shall notify Parent of any such emergency expenditure as soon as reasonably practicable) and (B) operations proposed by third parties under joint operating agreements, joint development agreements and other similar agreements;

(ix) (A) pay, discharge, settle or satisfy any claims, liabilities or obligations (whether absolute, accrued, asserted or unasserted, contingent or otherwise), other than the payment, discharge or satisfaction in the ordinary course of business consistent with past practice or as required by their terms as in effect on the date of this Agreement of claims, liabilities or obligations reflected or reserved against in the most recent financial statements (or the notes thereto) of the Company included in the Company SEC Documents filed prior to the date hereof (for amounts not in excess of such reserves) or incurred since the date of such financial statements in the ordinary course of business consistent with past practice, (A) cancel any Indebtedness owed to the Company or any of its Subsidiaries with a principal amount in excess of $3,000,000 or (B) waive or release any right held by the Company or any of its Subsidiaries with a value in excess of $3,000,000;

(x) other than in the ordinary course of business consistent with past practice, (A) affirmatively waive, release, or assign any material rights or claims under any Company Material Contract, which waiver, release or assignment would reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect, (B) modify, amend, terminate or cancel or affirmatively renew or affirmatively extend any Company Material Contract (other than intercompany transactions, agreements or arrangements or commodity hedging Contracts and other than any modification, termination or renewal that would not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect) or (C) enter into any Contract (other than commodity hedging Contracts or Contracts entered into or in connection with any action taken in compliance with or permitted under this Section 5.1(a)) that if in effect on the date hereof would be a Company Material Contract;

(xi) compromise, settle or agree to settle any Action other than compromises, settlements or agreements in the ordinary course of business consistent with MLP, that:past practice that involve only the payment of money damages (to the extent not covered by insurance) not in excess of $3,000,000 individually or $5,000,000 in the aggregate, in any case as would not result in any restriction on future activity or conduct of, or the admission of wrongdoing by, the Company and compromises, settlements or agreements permitted by Section 5.10;

(xii) (A) change its financial accounting methods, principles or practices (other than any change for Tax purposes), in each case except insofar as may have been required by a change in GAAP, or (B) revalue any of its material assets, except as may be required by GAAP;

(xiii) (A) settle or compromise any material Tax Proceeding; (B) file any material amended Tax Return or claim for a material Tax refund; (C) make, revoke or modify any material Tax election; (D) except to the extent otherwise required by applicable Law, file any material Tax Return other than on a basis consistent with past practice; (E) consent to any extension or waiver of the limitation period applicable to any material claim or assessment in respect of material Taxes; (F) grant any power of attorney with respect to material Taxes; (G) enter into any material Tax allocation, sharing or indemnity agreement, any material Tax holiday agreement, or any material closing or other similar agreement with respect to Taxes; or (H) change any material method of accounting for Tax purposes;

(xiv) change its fiscal year;

(xv) (A) grant any current or former director, officer, employee or independent contractor any increase in compensation, bonus or other benefits, or approve any grant of any type of compensation or benefits to any director, officer, employee or independent contractor not previously receiving or entitled to receive such type of compensation or benefit, or pay any bonus of any kind or amount to any such individual, other than (x) increases in base salary and wages in the ordinary course of business consistent with past practice for directors, officers, employees or independent contractors with less than $100,000 in annual compensation and (y) grants of compensation in the ordinary course of business consistent with past practice to, and participation in Company Plans as in effect as of the date hereof for, individuals hired after the date of this Agreement in accordance with Section 5.1(a)(xvi), (B) grant or pay to any current or former director, officer, employee or independent contractor any equity-based award or any severance, change in control or termination pay, or approve any modifications thereto or increases thereto (other than pursuant to the terms of any written agreement or other Company Plan as in effect as of the date hereof), (C) adopt or enter into any collective bargaining agreement or other labor union contract, (D) take any action to accelerate the vesting, funding or payment of any compensation or benefit under any Company Plan or any employment agreement or other similar Contract or (E) adopt any new employee benefit or compensation plan or arrangement or materially amend, modify or terminate any existing Company Plan other than as required by applicable Law;

(xvi) hire any (A) employees at the executive level or higher or (B) other than in the ordinary course of business consistent with past practice, any other employees, in each case (with respect to the immediately preceding clauses (A) and (B)), other than to replace any such employee or executive whose employment has terminated prior to the date hereof or as otherwise permitted hereunder;

(xvii) terminate any director, officer, employee or independent contractor with more than $100,000 in annual compensation (a “Company Covered Individual”) or otherwise cause any Company Covered Individual to resign, in each case other than (A) in the ordinary course of business consistent with past practice or (B) for cause or poor performance (documented in accordance with the Company’s past practices);

(xviii) fail to keep in force in all material respects all material insurance policies or replacement or revised provisions regarding material insurance coverage with respect to the assets, operations and activities of the Company and its Subsidiaries as currently in effect, to the extent commercially reasonable in the Company’s business judgment in light of prevailing conditions in the insurance market;

(xix) renew or enter into any non-compete, exclusivity, non-solicitation or similar agreement that would restrict or limit, in any material respect, the operations of the Company or any of its Subsidiaries;

(xx) enter into any new line of business outside of its existing business;

(xxi) enter into any new lease or amend the terms of any existing lease of real property that would require payments over the remaining term of such lease in excess of $2,000,000 (excluding, for the avoidance of doubt, all Oil and Gas Leases and Rights-of-Way);

(xxii) take any action (or omit to take any action) if such action (or omission) would reasonably be expected to cause any of the conditions set forth in Article VI not being satisfied by the Outside Date; or

(xxiii) authorize any of, or commit, resolve or agree to take any of, the foregoing actions.

(b) Conduct of Business by Parent. Except as otherwise expressly required or permitted by this Agreement, as set forth in Section 6.1Efforts. Subject5.1(b) of the Parent Disclosure Letter or as may be required by Law (including “shelter-in-place,”“stay-at-home” and similar Laws), during the period from the date of this Agreement until the Effective Time, except as consented to in writing by the Company (which consent shall not be unreasonably withheld, conditioned or delayed), Parent shall, and shall cause each of its Subsidiaries to, use commercially reasonable efforts to carry on its business in the ordinary course in all material respects. In addition to and without limiting the generality of the foregoing, during the period from the date of this Agreement until the Effective Time, except as otherwise expressly required or permitted by this Agreement, as set forth in Section 5.1(b) of the Parent Disclosure Letter or as may be required by Law (including “shelter-in-place,”

“stay-at-home” and similar Laws), Parent shall not, and shall not permit any of its Subsidiaries, without the prior written consent (which consent shall not be unreasonably withheld, conditioned or delayed) of the Company, to:

(i) declare, set aside or pay any dividends on, or make any other distributions (whether in cash, stock or property) in respect of, any of its capital stock or other equity interests, except for (x) quarterly cash dividends by Parent on the shares of Parent Common Stock not to exceed $0.55 per share, with customary record and payment dates and (y) dividends by a wholly-owned Subsidiary of Parent to its parent or parents;

(ii) issue, deliver, sell or grant any shares of its capital stock or other equity interests or any securities convertible into, or exchangeable for or exercisable for any such shares or other equity interests, or any rights, warrants or options to acquire, any such shares or other equity interests, or any stock appreciation rights, “phantom” stock rights, performance units, rights to receive shares of capital stock of Parent on a deferred basis or other rights linked to the value of shares of Parent Common Stock, including pursuant to Contracts as in effect on the date hereof, in each case, other than (A) the grant of Parent Restricted Stock Awards, Parent RSU Awards, Parent PRSU Awards or Parent Stock Options pursuant to the terms of a Parent Plan in the ordinary course of business consistent with past practice or the issuance of shares of Parent Common Stock (1) upon the settlement of Parent Restricted Stock Awards, Parent RSU Awards, Parent PRSU Awards, Parent Stock Options or Parent Convertible Notes outstanding on the Measurement Date or issued after the Measurement Date in accordance with this Agreement, in each case in accordance with their terms as in effect on the Measurement Date or date of such later issuance or (2) issued as a dividend made in accordance with Section 5.1(b)(i) or (B) issuances of Parent Common Stock through any public or private offering or other transaction of up to 10% of the shares of Parent Common Stock issued and outstanding as of the date of this Agreement, in the aggregate;

(iii) amend or otherwise change, or cause, authorize or propose to amend or otherwise change, any of the Parent Organizational Documents in a manner that could reasonably be expected to adversely affect the consummation of the Transactions or adversely affect in any material respect the rights of holders of Parent Common Stock;

(iv) directly or indirectly acquire or agree to acquire (A) by merging or consolidating with, purchasing a substantial equity interest in or a substantial portion of the assets of, making an investment in or loan or capital contribution to or in any other manner, any corporation, partnership, association or other business organization or division thereof or (B) any assets that are otherwise material to Parent and its Subsidiaries, in each case other than (1) the acquisition, lease, transfer, exchange or swap of Oil and Gas Properties or other assets in the ordinary course of business consistent with past practice, (2) transactions solely between Parent and its wholly-owned Subsidiaries or solely among wholly-owned Subsidiaries of Parent or (3) acquisitions as to which all of the following apply: (x) the aggregate amount of the consideration paid or transferred by Parent and its Subsidiaries in connection with all such acquisitions would not exceed $1,000,000,000, (y) the aggregate amount of the consideration paid or transferred by Parent and its Subsidiaries in connection with all such acquisitions would not exceed $100,000,000 in respect of assets located outside of the Permian Basin and (z) the occurrence of which would not reasonably be expected to prevent, materially delay or materially impede the Transactions;

(v) directly or indirectly (including by merger or consolidation with any Person) sell, lease, swap, exchange, farmout, license, sell and leaseback, abandon, mortgage or otherwise encumber or subject to any Lien (other than Permitted Liens) or otherwise dispose in whole or in part of any of its material properties, assets or rights or any interest therein, in each case other than (A) sales, leases, or dispositions for which the consideration is less than $500,000,000 in the aggregate, (B) exchanges or swaps in the ordinary course of business consistent with past practice, (C) the sale of Hydrocarbons in the ordinary course of business consistent with past practice, or (D) the sale or other disposition of equipment that is surplus, obsolete or replaced made in the ordinary course of business consistent with past practice;

(vi) adopt or enter into a plan of complete or partial liquidation, dissolution, restructuring, recapitalization or other reorganization, other than such transactions among wholly-owned Subsidiaries of Parent;

(vii) take any action (or omit to take any action) if such action (or omission) would reasonably be expected to cause any of the conditions set forth in Article VI not being satisfied by the Outside Date; or

(viii) authorize any of, or commit, resolve or agree to take any of, the foregoing actions.

(c) Each Party acknowledges and agrees that (i) nothing contained in this Agreement is intended to give any other Party, directly or indirectly, the right to control or direct the operations of any other Party (other than, with respect to Parent or the Company, the right to control or direct the operations of any other Parent Party or Company Party, respectively) prior to the Effective Time, and (ii) prior to the Effective Time, each Party shall exercise, consistent with the terms and conditions of this Agreement, complete control and supervision over its and its Subsidiaries’ respective operations.

Section 5.2 No Solicitation; Recommendations.

(a) Each of Parent and the Company shall not, and shall not permit or authorize any of its Subsidiaries or any of their respective directors or officers to, and shall use reasonable best efforts to cause each of the other Representatives of such partiesParty or any of its Subsidiaries, directly or indirectly, not to (i) solicit, initiate, endorse, knowingly encourage or knowingly facilitate any inquiry, proposal or offer that constitutes an Acquisition Proposal, or any inquiry, proposal or offer that would reasonably be expected to lead to any Acquisition Proposal, or (ii) enter into, continue or otherwise participate in any discussions or negotiations regarding, or furnish to any Person any non-public information or data with respect to, or otherwise cooperate in any way with, any Acquisition Proposal. Each of Parent and the Company shall, and shall cause each of its respective Subsidiaries and their respective directors and officers to, and shall use reasonable best efforts to cause each of the other Representatives of such Party and its Subsidiaries to, (A) immediately cease and cause to be terminated all existing discussions and negotiations with any Person conducted heretofore with respect to any Acquisition Proposal or potential Acquisition Proposal and immediately terminate all physical and electronic data room access previously granted to any such Person, (B) request the prompt return or destruction of all confidential information furnished with respect to any Acquisition Proposal or potential Acquisition Proposal during the six-month period prior to the date of this Agreement, to the extent such return or destruction had not previously been requested, and (C) not terminate, waive, amend, release or modify any provision of any confidentiality or standstill agreement to which it or any of its Affiliates or Representatives is a party with respect to any Acquisition Proposal or potential Acquisition Proposal, and shall use commercially reasonable efforts to enforce the provisions of any such agreement, which shall include, to the extent such Party has knowledge of any breach of such agreement, using commercially reasonable efforts to seek any injunctive relief available to enforce such agreement (provided, that Parent or the Company shall be permitted to grant waivers of, and not enforce, any standstill agreement, but solely to the extent that the Parent Board or the Company Board, respectively, has determined in good faith, after consultation with its outside counsel, that failure to take such action (I) would prohibit the counterparty from making an unsolicited Acquisition Proposal to the Parent Board or the Company Board, as applicable, in compliance with this Section 5.2 and (II) would constitute a breach of its fiduciary duties to the Parent Stockholders or the Company Stockholders, as applicable, under applicable Law). Nothing in this Section 5.2 shall prohibit the Company or the Company Board or Parent or the Parent Board, directly or indirectly through any Representative, from informing any person that the Company or Parent, as applicable, is party to this Agreement and informing such person of the restrictions that are set forth in this Section 5.2. Notwithstanding the foregoing, if at any time following the date of this Agreement and prior to obtaining the Parent Stockholder Approval or the Company Stockholder Approval (as applicable), (1) Parent or the Company receives a written Acquisition Proposal that the Parent Board or the Company Board, respectively, determines in good faith to be bona fide, (2) such Acquisition Proposal was not solicited after the date of this Agreement in violation of Section 5.2(a) and did not otherwise result from a breach of this Section 5.2, (3) the Parent Board or the Company Board (as applicable) determines in good faith (after consultation with outside counsel and its financial advisor) that such Acquisition Proposal constitutes or would reasonably be expected to lead to a Superior Proposal, and (4) the Parent Board or the Company Board (as applicable) determines in good faith (after consultation with outside counsel) that the failure to take the actions referred to in clause (x) or (y) below would be inconsistent with its fiduciary duties to the Parent Stockholders or the Company Stockholders, respectively, under applicable Law, then Parent or the Company (as applicable) may (x) furnish information with respect to

such Party and its Subsidiaries to the Person making such Acquisition Proposal pursuant to a customary confidentiality agreement containing confidentiality terms substantially similar to, and no less favorable in the aggregate to such Party than, those set forth in the Confidentiality Agreement (an “Acceptable Confidentiality Agreement”); provided, that (I) such Party shall provide the other Party with a non-redacted copy of each confidentiality agreement such Party has executed in accordance with this Section 5.2 and (II) any non-public information provided to any such Person shall have been previously provided to the other Party or shall be provided to the other Party prior to or substantially concurrently with (or in the case of oral communication only, within 24 hours after) the time it is provided to such Person, and (y) participate in discussions or negotiations with the Person making such Acquisition Proposal and such Person’s Representatives and financing sources regarding such Acquisition Proposal and take any other actions with respect to such Acquisition Proposal that would otherwise be restricted by Section 5.2(a)(i) or Section 5.2(a)(ii) (it being understood that no solicitation under this clause (y) shall result in any proposal or offer being deemed to be “solicited”). Nothing in this Section 5.2 shall prohibit the Company or Parent, or the Company Board or the Parent Board, as applicable, directly or indirectly through any Representative, from seeking to clarify the terms and conditions of such inquiry or proposal to determine whether such inquiry or proposal constitutes or would be reasonably expected to lead to a Superior Proposal.

(b) Except as permitted by Section 5.2(c) (with respect to Parent) or Section 5.2(d) (with respect to the Company), neither the Parent Board nor the Company Board (nor any committee of either of the foregoing) shall:

(i) (A) withdraw (or modify or qualify in any manner adverse to the other Party) the Parent Recommendation or the Company Recommendation, respectively, (B) recommend or otherwise declare advisable the approval by the Parent Stockholders or the Company Stockholders, respectively, of any Acquisition Proposal, or (C) publicly propose to take any such actions (each such action set forth in this Section 5.2(b)(i) being referred to herein as an “Adverse Recommendation Change” with respect to the Parent Recommendation or the Company Recommendation, as applicable); or

(ii) cause or permit Parent or the Company, respectively, or any of their respective Subsidiaries to enter into, or publicly declare advisable or publicly propose to enter into, any letter of intent, memorandum of understanding, agreement in principle, acquisition agreement, merger agreement, option agreement, joint venture agreement, partnership agreement or other Contract, except for an Acceptable Confidentiality Agreement (each, an “Alternative Acquisition Agreement”), in each case constituting or related to any Acquisition Proposal.

(c) Notwithstanding Section 5.2(b), at any time prior to obtaining the Parent Stockholder Approval, the Parent Board may, if it determines in good faith (after consultation with outside counsel) that the failure to do so would be inconsistent with its fiduciary duties to the Parent Stockholders under applicable Law, taking into account all adjustments to the terms of this Agreement that may be offered by the Company pursuant to this Section 5.2, make an Adverse Recommendation Change in response to either (x) a Superior Proposal or (y) an Intervening Event; provided, however, that the Parent Board may not make an Adverse Recommendation Change in response to a Superior Proposal unless:

(i) Parent notifies the Company in writing at least four Business Days before taking that action of its intention to do so, and specifies the reasons therefor, including the terms and conditions of, and the identity of the Person making, such Superior Proposal, and contemporaneously furnishes a copy (if any) of the proposed Alternative Acquisition Agreement and any other relevant transaction documents (it being understood and agreed that any amendment to the financial terms or any other material amendment to any material term of such Superior Proposal shall require a new written notice by Parent and a new notice period, provided such notice period shall be shortened to two Business Days);

(ii) during the four Business Day period prior to its effecting an Adverse Recommendation Change, Parent negotiates, and causes its financial and legal advisors to, negotiate with the Company in good faith (to the extent the Company seeks to negotiate) regarding any revisions to the terms of the Transactions proposed by the Company; and

(iii) if the Company makes a proposal during such four Business Day period to adjust the terms and conditions of this Agreement, the Parent Board, after taking into consideration the adjusted terms and

conditions of this Agreement as proposed by the Company, continues to determine in good faith (after consultation with outside counsel and its financial advisor) that such Superior Proposal continues to be a Superior Proposal and that the failure to make an Adverse Recommendation Change would be inconsistent with its fiduciary duties to Parent Stockholders under applicable Law;

providedfurther, that the Parent Board may not make an Adverse Recommendation Change in response to an Intervening Event unless:

(1) Parent notifies the Company in writing at least four Business Days before making an Adverse Recommendation Change with respect to such Intervening Event of its intention to do so and specifies the reasons therefor and describing such Intervening Event in reasonable detail;

(2) during the four Business Day period prior to its effecting an Adverse Recommendation Change, Parent negotiates, and causes its financial and legal advisors to, negotiate with the Company in good faith (to the extent the Company seeks to negotiate) regarding any revisions to the terms of the Transactions proposed by the Company; and

(3) if the Company makes a proposal during such four Business Day period to adjust the terms and conditions of this Agreement, the Parent Board, after taking into consideration the adjusted terms and conditions of this Agreement as proposed by the Company, continues to determine in good faith (after consultation with outside counsel) that the failure to make such Adverse Recommendation Change would be inconsistent with its fiduciary obligations to the Parent Stockholders under applicable Law.

Notwithstanding anything to the contrary contained herein, neither Parent nor any of its Subsidiaries shall enter into any Alternative Acquisition Agreement unless this Agreement has been terminated in accordance with its terms (including the payment of the Parent Termination Fee, if and as applicable, pursuant to Section 7.3(c)).

(d) Notwithstanding Section 5.2(b), at any time prior to obtaining the Company Stockholder Approval, the Company Board may, if it determines in good faith (after consultation with outside counsel) that the failure to do so would be inconsistent with its fiduciary duties to the Company Stockholders under applicable Law, taking into account all adjustments to the terms of this Agreement that may be offered by the Parent pursuant to this Section 5.2, (x) make an Adverse Recommendation Change in response to either (1) a Superior Proposal or (2) an Intervening Event or (y) terminate this Agreement pursuant to Section 7.1(e) in response to a Superior Proposal; provided, however, that the Company Board may not make an Adverse Recommendation Change or terminate this Agreement pursuant to Section 7.1(e) in response to a Superior Proposal unless:

(i) the Company notifies Parent in writing at least four Business Days before taking that action of its intention to do so, and specifies the reasons therefor, including the terms and conditions of, and the identity of the Person making, such Superior Proposal, and contemporaneously furnishes a copy (if any) of the proposed Alternative Acquisition Agreement and any other relevant transaction documents (it being understood and agreed that any amendment to the financial terms or any other material amendment to any material term of such Superior Proposal shall require a new written notice by the Company and a new notice period, provided such notice period shall be shortened to two Business Days);

(ii) during the four Business Day period prior to its effecting an Adverse Recommendation Change or terminating this Agreement pursuant to Section 7.1(e), the Company negotiates, and causes its financial and legal advisors to, negotiate with Parent in good faith (to the extent Parent seeks to negotiate) regarding any revisions to the terms of the Transactions proposed by Parent; and

(iii) if Parent makes a proposal during such four Business Day period to adjust the terms and conditions of this Agreement, the Company Board, after taking into consideration the adjusted terms and conditions of this Agreement as proposed by Parent, continues to determine in good faith (after consultation with outside counsel and its financial advisor) that such Superior Proposal continues to be a Superior Proposal and that the failure to make an Adverse Recommendation Change or terminate this Agreement pursuant to Section 7.1(e), as applicable, would be inconsistent with its fiduciary duties to the Company Stockholders under applicable Law;

providedfurther, that the Company Board may not make an Adverse Recommendation Change in response to an Intervening Event unless:

(1) the Company notifies Parent in writing at least four Business Days before making an Adverse Recommendation Change with respect to such Intervening Event of its intention to do so and specifies the reasons therefor and describing such Intervening Event in reasonable detail;

(2) during the four Business Day period prior to its effecting an Adverse Recommendation Change, the Company negotiates, and causes its financial and legal advisors to, negotiate with Parent in good faith (to the extent Parent seeks to negotiate) regarding any revisions to the terms of the Transactions proposed by Parent; and

(3) if Parent makes a proposal during such four Business Day period to adjust the terms and conditions of this Agreement, the Company Board, after taking into consideration the adjusted terms and conditions of this Agreement as proposed by Parent, continues to determine in good faith (after consultation with outside counsel) that the failure to make such Adverse Recommendation Change would be inconsistent with its fiduciary obligations to the Company Stockholders under applicable Law.

Notwithstanding anything to the contrary contained herein, neither the Company nor any of its Subsidiaries shall enter into any Alternative Acquisition Agreement unless this Agreement has been terminated in accordance with its terms (including the payment of the Company Termination Fee, if and as applicable, pursuant to Section 7.3(b)).

(e) In addition to their respective obligations set forth in Section 5.2(a) and Section 5.2(b), each of Parent and the Company shall promptly (and in any event within the longer of one Business Day and 48 hours of receipt) advise the other Party in writing in the event such Party or any of its Subsidiaries or Representatives receives (i) any indication by any Person that it is considering making an Acquisition Proposal, (ii) any inquiry or request for information, discussion or negotiation that would reasonably be expected to lead to or that contemplates an Acquisition Proposal, or (iii) any proposal or offer that would reasonably be expected to lead to an Acquisition Proposal, in each case together with a description of the material terms and conditions of any such indication, inquiry, request, proposal or offer, the identity of the Person making any such indication, inquiry, request, proposal or offer, and a copy of any written proposal, offer or draft agreement provided by such Person. Each of Parent and the Company shall keep the other Party reasonably informed on a timely basis of the status and details (including, within the longer of one Business Day and 48 hours after the occurrence of any material amendment, modification or development, discussion or negotiation) of any such Acquisition Proposal, request, inquiry, proposal or offer, including furnishing copies of any material written correspondence or other materials provided to the Company or Parent, as applicable, and copies of all draft documentation provided to the Company or Parent, as applicable. Without limiting any of the foregoing, each of Parent and the Company shall promptly (and in any event within the longer of one Business Day and 48 hours) notify the other Party if such Party determines to begin providing information or to engage in discussions or negotiations concerning an Acquisition Proposal pursuant to Section 5.2(a) and shall in no event begin providing such information or engaging in such discussions or negotiations prior to providing such notice. Each of Parent and the Company shall provide the other Party with at least 24 hours’ prior notice (or such shorter notice as may be provided to such Party’s Board of Directors) of a meeting of the Parent Board or the Company Board, respectively, at which such Board of Directors is reasonably expected to consider an Acquisition Proposal.

(f) Each of Parent and the Company agrees that any violation of the restrictions set forth in this Section 5.2 by any Representative of such Party that is a member of such Party’s Board of Directors or is an executive officer of such Party, whether or not such Person is purporting to act on behalf of such Party or any of its Subsidiaries or otherwise, shall be deemed to be a breach of this Section 5.2 by such Party.

(g) Each of Parent and the Company shall not, and shall cause its Subsidiaries not to, enter into any confidentiality agreement with any Person subsequent to the date of this Agreement that would restrict such Party’s ability to comply with any of the terms of this Section 5.2, and each of Parent and the Company represents that neither it nor any of its Subsidiaries is a party to any such agreement.

(h) Neither Parent nor the Company shall take any action to exempt any Person (other than the other Party and its Affiliates) from the restrictions on “business combinations” contained in Section 203 of the DGCL (or any similar provision of any other Takeover Law) or otherwise cause such restrictions not to apply, or agree to do any of the foregoing.

(i) Nothing contained in Section 5.2(a) shall prohibit Parent or the Company from taking and disclosing a position contemplated by Rule 14e-2(a), Rule 14d-9 or Item 1012(a) of Regulation M-A promulgated under the Exchange Act; provided, however, that any such disclosure (other than a “stop, look and listen” communication or similar communication of the type contemplated by Section 14d-9(f) under the Exchange Act) shall be deemed to be an Adverse Recommendation Change (including for purposes of Section 7.1(c) and Section 7.1(d), as applicable) unless the Board of Directors of such Party expressly reaffirms the Parent Recommendation or the Company Recommendation, as applicable, in such disclosure and expressly rejects any applicable Acquisition Proposal.

(j) For purposes of this Agreement:

(i) “Acquisition Proposal” means, with respect to Parent or the Company, any proposal or offer with respect to any direct or indirect acquisition or purchase or license, in one transaction or a series of transactions, and whether through any merger, reorganization, consolidation, tender offer, self-tender, exchange offer, stock acquisition, asset acquisition, binding share exchange, business combination, recapitalization, liquidation, dissolution, joint venture, licensing or similar transaction, or otherwise, of (A) 20% or more of the consolidated assets of such Party (based on the fair market value thereof), (B) the assets of such Party and its Subsidiaries accounting for 20% or more of consolidated EBITDA of such Party during the prior 12 months or (C) 20% or more of the capital stock or voting power of such Party or any of its Subsidiaries, in each case other than the Transactions;

(ii) “Superior Proposal” means, with respect to Parent or the Company, any bona fide written Acquisition Proposal that is not solicited after the date of this Agreement in violation of Section 5.2(a) that the Parent Board or the Company Board (as applicable) determines in good faith (after consultation with outside counsel and its financial advisor), taking into account all legal, financial, regulatory and other aspects of the proposal, including the terms of any financing or financing contingencies and the likely timing of closing, and the Person making the proposal, (A) is more favorable to the stockholders of such Party from a financial point of view than the Transactions (including any adjustment to the terms and conditions proposed by the other Party in response to such proposal) and (B) would reasonably be expected to be completed on the terms proposed; provided, that, for purposes of this definition of “Superior Proposal,” references in the term “Acquisition Proposal” to “20% or more” shall be deemed to be references to “50% or more”; and

(iii) “Intervening Event” means, with respect to Parent or the Company, a material event or circumstance that was not known or reasonably foreseeable to the Parent Board or the Company Board (as applicable) prior to the execution of this Agreement (or if known, the consequences of which were not known or reasonably foreseeable), which event or circumstance, or any material consequence thereof, becomes known to such Board of Directors prior to the receipt of the Parent Stockholder Approval or the Company Stockholder Approval (as applicable) that does not relate to (A) an Acquisition Proposal (with respect to Parent or the Company, as applicable) or (B) any changes in the price of Parent Common Stock or Company Class A Common Stock (it being understood that the underlying facts giving rise or contributing to such change in price may be taken into account in determining whether there has been an Intervening Event, to the extent otherwise permitted by this definition).

Section 5.3 Preparation of Form S-4 and Joint Proxy Statement; Stockholders Meetings.

(a) As promptly as practicable after the date of this Agreement, Parent and the Company shall use their commerciallyrespective reasonable best efforts to (i) prepare and cause to be filed with the SEC a mutually acceptable proxy statement (as amended or supplemented from time to time, the “Joint Proxy Statement”) to be sent to (A) the Company Stockholders relating to the special meeting of Company Stockholders (including any postponement or

adjournment thereof, the “Company Stockholders Meeting”) to be held to consider the adoption of this Agreement and (B) the Parent Stockholders relating to the special meeting of Parent Stockholders (including any postponement or adjournment thereof, the “Parent Stockholders Meeting”) to be held to consider the approval of the Stock Issuance; and (ii) in consultation with one another, set a preliminary record date for each of the Company Stockholders Meeting and the Parent Stockholders Meeting and commence broker searches pursuant to Section 14a-13 of the Exchange Act in connection therewith. As promptly as practicable following the date of this Agreement, Parent shall prepare (with the Company’s reasonable cooperation) and file with the SEC a registration statement on Form S-4 (as amended or supplemented from time to time, the “Form S-4”), in which the Joint Proxy Statement will be included as a prospectus, in connection with the registration under the Securities Act of the Parent Common Stock to be issued in the Mergers. The Company and Parent shall each use their respective reasonable best efforts to provide all information related to themselves, their respective Subsidiaries and equityholders as may be required or reasonably requested by the other Party or as requested by the staff of the SEC to be included in the Form S-4 and Joint Proxy Statement, to cause the Form S-4 and Joint Proxy Statement to comply with the rules and regulations promulgated by the SEC and to respond promptly to any comments of the SEC or its staff.

(b) Each of Parent and the Company shall use its reasonable best efforts to have the Form S-4 declared effective under the Securities Act as promptly as practicable after such filing and to keep the Form S-4 effective as long as is necessary to consummate the Transactions. Parent shall also take any action (other than qualifying to do business in any jurisdiction in which it is not now so qualified or filing a general consent to service of process) required to be taken under any applicable state securities or “blue sky” Laws in connection with the Stock Issuance and the Company shall furnish all information concerning the Company, its Subsidiaries and the holders of Company Class A Common Stock, Company Class B Common Stock and Opco LLC Units as may be reasonably requested in connection with any such action. Each of Parent and the Company shall use reasonable best efforts to cause the Joint Proxy Statement to be mailed to its stockholders as promptly as practicable after the Form S-4 is declared effective under the Securities Act. No filing of, or amendment or supplement to, the Form S-4 or the Joint Proxy Statement, or any response to comments from or other communication to the SEC with respect to the Form S-4 or the Joint Proxy Statement, will be made by Parent or the Company, as applicable, without providing the other Party a reasonable opportunity to review and comment thereon and without the others’ prior approval (which shall not be unreasonably withheld). Each of Parent and the Company will advise the other Party promptly after it receives oral or written notice thereof, of the time when the Form S-4 has become effective or any amendment or supplement thereto has been filed, the issuance of any stop order, the suspension of the qualification of the Parent Common Stock issuable in connection with the Mergers for offering or sale in any jurisdiction or any oral or written request by the SEC for amendment of the Joint Proxy Statement or the Form S-4 or comments thereon and responses thereto or requests by the SEC for additional information, and will promptly provide the others with copies of any written communication from the SEC or any state securities commission and a reasonable opportunity to participate in the responses thereto. If, at any time prior to the Effective Time, any information relating to the Company or Parent, or any of their respective Affiliates, officers or directors, should be discovered by the Company or Parent that should be set forth in an amendment or supplement to the Form S-4 or the Joint Proxy Statement, so that any of such documents would not contain any misstatement of a material fact or omit to state any material fact necessary to make the statements therein, in light of the circumstances under which they were made, not misleading, the Party that discovers such information shall promptly notify the other Party and an appropriate amendment or supplement describing such information shall promptly be filed with the SEC and, to the extent required under applicable Law, disseminated to Parent Stockholders and/or Company Stockholders; provided that the delivery of such notice and the filing of any such amendment or supplement shall not affect or be deemed to modify any representation or warranty made by any Party hereunder or otherwise affect the remedies available hereunder to any Party.

(c) As promptly as practicable after the Form S-4 is declared effective under the Securities Act, the Company shall duly call, give notice of, convene and hold the Company Stockholders Meeting, for the purpose of obtaining the Company Stockholder Approval and, if applicable, the advisory vote required by Rule 14a-21(c) under the Exchange Act in connection therewith. Such Company Stockholders Meeting shall in any event be no

later than 45 calendar days after the date on which the SEC declares the Form S-4 effective. The Company may postpone or adjourn the Company Stockholders Meeting solely (i) with the prior written consent of Parent; (ii) (A) due to the absence of a quorum or (B) if the Company has not received proxies representing a sufficient number of shares of Company Class A Common Stock and Company Class B Common Stock for the Company Stockholder Approval, whether or not a quorum is present, to solicit additional proxies; or (iii) to allow reasonable additional time for the filing and mailing of any supplemental or amended disclosure that the Company Board has determined in good faith (subjectafter consultation with outside legal counsel is necessary under applicable Law and for such supplemental or amended disclosure to be disseminated and reviewed by the Company Stockholders prior to the Company Stockholders Meeting; provided, that the Company may not postpone or adjourn the Company Stockholders Meeting more than a total of two times pursuant to clause (ii)(A) and/or clause (ii)(B) of this Section 5.3(c). Notwithstanding the foregoing, the Company shall, at the request of Parent, to the extent permitted by Law, adjourn the Company Stockholders Meeting to a date specified by Parent for the absence of a quorum or if the Company has not received proxies representing a sufficient number of shares of Company Class A Common Stock and Company Class B Common Stock for the Company Stockholder Approval; provided, that the Company shall not be required to adjourn the Company Stockholders Meeting more than one time pursuant to this sentence, and no such adjournment pursuant to this sentence shall be required to be for a period exceeding 10 Business Days. Except in the case of an Adverse Recommendation Change by the Company specifically permitted by Section 5.2(d) and subject to the Company’s ability to terminate this Agreement pursuant to Section 7.1(e), the Company, through the Company Board, shall (i) recommend to its stockholders that they adopt this Agreement and (ii) include such recommendation in the Joint Proxy Statement. Without limiting the generality of the foregoing, the Company agrees that (x) except in the event of an Adverse Recommendation Change specifically permitted by Section 5.2(d), the Company shall use its reasonable best efforts to solicit proxies to obtain the Company Stockholder Approval and (y) its obligations pursuant to this Section 5.3(c) shall not be affected by the commencement, public proposal, public disclosure or communication to the Company or any other Person of any Acquisition Proposal or the occurrence of any Adverse Recommendation Change.

(d) As promptly as practicable after the Form S-4 is declared effective under the Securities Act, Parent shall duly call, give notice of, convene and hold the Parent Stockholders Meeting, for the purpose of obtaining the Parent Stockholder Approval and, if applicable, the advisory vote required by Rule 14a-21(c) under the Exchange Act in connection therewith. Such Parent Stockholders Meeting shall in any event be no later than 45 calendar days after the date on which the SEC declares the Form S-4 effective. Parent may postpone or adjourn the Parent Stockholders Meeting solely (i) with the prior written consent of the Company; (ii) (A) due to the absence of a quorum or (B) if Parent has not received proxies representing a sufficient number of shares of Parent Common Stock for the Parent Stockholder Approval, whether or not a quorum is present, to solicit additional proxies; or (iii) to allow reasonable additional time for the filing and mailing of any supplemental or amended disclosure that the Parent Board has determined in good faith after consultation with outside legal counsel is necessary under applicable Law and for such supplemental or amended disclosure to be disseminated and reviewed by the Parent Stockholders prior to the Parent Stockholders Meeting; provided, that Parent may not postpone or adjourn the Parent Stockholders Meeting more than a total of two times pursuant to clause (ii)(A) and/or clause (ii)(B) of this Section 5.3(d). Notwithstanding the foregoing, Parent shall, at the request of the Company, to the extent permitted by Law, adjourn the Parent Stockholders Meeting to a date specified by the Company for the absence of a quorum or if Parent has not received proxies representing a sufficient number of shares of Parent Common Stock for the Parent Stockholder Approval; provided, that Parent shall not be required to adjourn the Parent Stockholders Meeting more than one time pursuant to this sentence, and no such adjournment pursuant to this sentence shall be required to be for a period exceeding 10 Business Days. Except in the case of an Adverse Recommendation Change by Parent specifically permitted by Section 5.2(c), Parent, through the Parent Board, shall (i) recommend to its stockholders that they approve the Stock Issuance and (ii) include such recommendation in the Joint Proxy Statement. Without limiting the generality of the foregoing, Parent agrees that (x) except in the event of an Adverse Recommendation Change specifically permitted by Section 5.2(c), Parent shall use its reasonable best efforts to solicit proxies to obtain the Parent Stockholder Approval and (y) its obligations pursuant to this Section 5.3(d) shall not be affected by the commencement,

public proposal, public disclosure or communication to Parent or any other Person of any Acquisition Proposal or the occurrence of any Adverse Recommendation Change.

(e) Each of Parent and the Company shall cooperate and use their reasonable best efforts to set the record dates for and hold the Parent Stockholders Meeting and the Company Stockholders Meeting, as applicable, on the same day and at approximately the same time.

Section 5.4 Access to Information; Confidentiality.

(a) Each of Parent and the Company shall, and shall cause its Subsidiaries to, afford to the other Party and its Representatives reasonable access during normal business hours and upon reasonable prior notice, during the period prior to the Effective Time or the termination of this Agreement in accordance with its terms, to all their respective properties, assets, books, contracts, commitments, key personnel and records and, during such period, each such Party shall, and shall cause each of its Subsidiaries to, furnish promptly to the other Party a copy of each report, schedule, registration statement and other document filed or received by it during such period pursuant to the requirements of federal or state securities Laws and all other information concerning its business, properties and personnel as the other Party may reasonably request (including Tax Returns filed and those in preparation and the work papers of its auditors); provided, however, that the foregoing shall not require the any Party to disclose any information to the extent such disclosure would, in the good faith determination of the disclosing Party, contravene applicable Laws)Law, jeopardize any attorney-client or other legal privilege or breach any existing Contract. All such information shall be held confidential in accordance with the terms of the applicable Confidentiality Agreement. No investigation pursuant to this Section 5.4 or information provided, made available or delivered to any Party pursuant to this Agreement shall affect any of the representations, warranties, covenants, rights or remedies, or the conditions to the obligations of, the Parties. Notwithstanding the foregoing, no Party shall be permitted to perform any invasive testing, monitoring, or other investigations such as for sampling or analysis of any environmental media or operation of any equipment, without the prior written consent of whichever Party owns the media or equipment to be tested.

Section 5.5 Reasonable Best Efforts.

(a) Upon the terms and subject to the conditions set forth in this Agreement, each of the Parties agrees to use its reasonable best efforts to take, or cause to be taken, all actions, and to do, or cause to be done, and to assist and cooperate with the other Party in doing, all things that are necessary, proper desirable or advisable so as to permitconsummate and enable prompt consummation ofmake effective, in the Mergermost expeditious manner practicable, the Transactions, including (a) using commerciallyits reasonable best efforts to liftaccomplish the following: (i) obtain all required consents, approvals or rescindwaivers from, or participation in other discussions or negotiations with, third parties, including as required under any injunctionParent Material Contract or restraining orderCompany Material Contract (as applicable); (ii) obtain all necessary actions or other order adversely affecting the ability of the parties to consummate the Merger Transactions,nonactions, waivers, consents, approvals, orders and (b) using commercially reasonable efforts to defend any litigation seeking to enjoin, prevent or delay the consummation of the Merger Transactions or seeking material damages. Each of such parties shall (x) cooperate fully with the Other Parties hereto to that endauthorizations from Governmental Entities, make all necessary registrations, declarations and (y) furnish to the Other Parties copies of all correspondence, filings and communications between it and its Affiliates and any Governmental Authority with respect to the Merger Transactions.

Section 6.2Unitholder Approval. (a) Subject to the terms and conditions of this Agreement, and except as permitted by Section 6.2(c), MLP shall take, in accordance with applicable Law, applicable stock exchange rules and the MLP Partnership Agreement, all action necessary to call, hold and convene the MLP Meeting to consider and vote upon the approval of this Agreement and the Merger Transactions, as promptly as practicable after the Registration Statement is declared effective. Subject to Section 6.2(b), (i) the MLP GP Conlficts Committee and the MLP GP Board shall recommend approval of this Agreement and the Merger Transactions to the holders of MLP Common Units (the “MLP Recommendation”), and (ii) MLP shall takemake all reasonable lawful action to solicit such approval by the holders of MLP Common Units. Except as provided in Section 6.2(b) and Section 6.2(c), neither the MLP GP Conflicts Committee nor the MLP GP Board shall (A) withdraw, modify or qualify in any manner adverse to PNR the MLP Recommendation or (B) publicly approve, adopt or recommend, or publicly propose to approve, adopt or recommend, any Acquisition Proposal (any action described in this sentence being referred to as an “MLP Change in Recommendation”). None of MLP GP, MLP or any of their Subsidiaries shall execute or enter into any letter of intent, memorandum of understanding, agreement in principle, merger agreement, acquisition agreement, option agreement, joint venture agreement, partnership agreement or other similar contract providing for any Acquisition Proposal.

(b) Notwithstanding Section 6.2(a), at any time prior to obtaining the MLP Unitholder Approval, the MLP GP Conflicts Committee or the MLP GP Board may make an MLP Change in Recommendation if it has determined in good faith, after consultation with its outside legal counsel and financial advisors, that failure to make an MLP Change in Recommendation would be inconsistent with its duties under the MLP Partnership Agreement or applicable Law; provided, however, that neither the MLP GP Conflicts Committee nor the MLP GP Board shall be entitled to exercise its right to make an MLP Change in Recommendation pursuant to this sentence unless (i) MLP has not engaged in a material breach of Section 6.6, (ii) MLP has provided to PNR three Business Days prior written notice (such notice, a “Notice of Proposed Recommendation Change”) advising PNR that the MLP GP Conflicts Committee or the MLP GP Board intends to take such action, specifying the reasons therefor in reasonable detail, including, if a reason for the MLP Change in Recommendation is an Acquisition Proposal, that the MLP GP Conflicts Committee has determined that the Acquisition Proposal is a Superior Proposal and specifying the terms and conditions of such Acquisition Proposal and the identity of the Person making such Acquisition Proposal (it being understood that any amendment to the terms of any such Acquisition Proposal shall require a new Notice of Proposed Recommendation Change and an additional three Business Day period), (iii) if a reason for the MLP Change in Recommendation is an Acquisition Proposal, MLP has provided to PNR all materials and information delivered or made available to the Person or group of Persons making such Acquisition Proposal pursuant to Section 6.6 (to the extent not previously provided to PNR), (iv) each of MLP GP, MLP and the MLP GP Conflicts Committee has negotiated, and has used its commercially reasonable efforts to cause its Representatives to negotiate, in good faith with PNR during such notice period to

enable PNR to revise the terms of this Agreement such that it would obviate the need for making the MLP Change in Recommendation, and (v) following the end of such notice period, the MLP GP Conflicts Committee shall have considered in good faith any changes to this Agreement proposed by PNR and shall have determined that the failure to make an MLP Change in Recommendation would continue to be inconsistent with its duties under the MLP Partnership Agreement or applicable Law even if such revisions proposed by PNR were to be given effect and, if a reason for the MLP Change in Recommendation is an Acquisition Proposal, that the Acquisition Proposal continues to be a Superior Proposal even if the revisions proposed by PNR were to be given effect. Any MLP Change in Recommendation shall not invalidate the approval (or “Special Approval” as defined in the MLP Partnership Agreement) of this Agreement or any other approval of the MLP GP Conflicts Committee, including in any respect that would have the effect of causing any state (including Delaware) takeover statute or other similar statute to be applicable to the Merger Transactions.

(c) Notwithstanding anything to the contrary in this Agreement, if there occurs an MLP Change in Recommendation in accordance with this Agreement, MLP and MLP GP shall, upon request of the MLP GP Conflicts Committee, (i) no longer call, hold or convene the MLP Meeting to consider and vote upon the approval of this Agreement and the Merger Transactions, and (ii) cancel any previously called MLP Meeting.

(d) Nothing contained in this Agreement shall prevent MLP, MLP GP, the MLP GP Board or the MLP GP Conflicts Committee from taking and disclosing to the holders of MLP Common Units a position contemplated by Rule 14d-9 and Rule 14e-2(a) promulgated under the Exchange Act (or any similar communication to holders of MLP Common Units) or from making any legally required disclosure to holders of MLP Common Units. Any “stop-look-and-listen” communication by MLP, MLP GP, the MLP GP Board, or the MLP GP Conflicts Committee to the limited partners of MLP pursuant to Rule 14d-9(f) promulgated under the Exchange Act (or any similar communication to the holders of MLP Common Units) shall not be considered an MLP Change in Recommendation or a withdrawal, modification or change in any manner adverse to PNR of all or a portion of the MLP GP Board Approval or the MLP GP Conflicts Committee Approval.

Section 6.3Registration Statement.

(a) Each of PNR and the MLP Parties agrees to cooperate in the preparation of the Registration Statement (including the Proxy Statement/Prospectus constituting a part thereof and all related documents) to be filed by PNR with the SEC in connection with the issuance of the shares of New Common Stock in the Merger as contemplated by this Agreement. PNR agrees to file the Registration Statement with the SEC as promptly as practicable. Each of MLP and PNR agrees to use all commercially reasonable efforts to cause the Registration Statement to be declared effective under the Securities Act as promptly as practicable after filing thereof. PNR also agrees to use commercially reasonablebest efforts to obtain all approvals or waivers from, or to avoid any Action by, any Governmental Entity, including filings under the HSR Act with the United States Federal Trade Commission and the Antitrust Division of the United States Department of Justice; and (iii) execute and deliver any additional instruments necessary state securities law or “Blue Sky” permitsto consummate the Transactions and approvals requiredfully to carry out the Merger Transactions.purposes of this Agreement; provided, however, that neither the Company nor any of its Subsidiaries shall commit to the payment of any fee, penalty or other consideration or make any other concession, waiver or amendment under any Contract in connection with obtaining any consent without the prior written consent of Parent. Each of PNRParent and MLP agrees tothe Company shall furnish to the other party allParty such information concerning PNR and its Subsidiaries or MLP, MLP GP and its Subsidiaries, as applicable, and the officers, directors and unitholders of PNR and MLP and any applicable Affiliates, as applicable, and to take such other action asParty may be reasonably requestedrequest in connection with the foregoing. No filing of the Registration Statement will be made by PNR, and no filing of the Proxy Statement/Prospectus will made by PNR or MLP, in each case without providing the other party a reasonable opportunity to review and comment thereon.

(b) Each of the MLP Parties and PNR agrees, as to itself and its Subsidiaries, that (i) none of the information supplied or to be supplied by it for inclusion or incorporation by reference in the Registration Statement will, at the time the Registration Statement and each amendment or supplement thereto, if any, becomes effective under the Securities Act, contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading, and (ii) the Proxy Statement/Prospectus and any amendment or supplement thereto will, at the date of mailing to the holders of MLP Common Units and at the time of the MLP Meeting, not contain any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they

were made, not misleading. Each of the MLP Parties and PNR further agrees that, if it shall become aware prior to the Closing Date of any information that would cause any of the statements in the Registration Statement or the Proxy Statement/Prospectus to be false or misleading with respect to any material fact, or omit to state any material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not false or misleading, it will promptly inform the Other Parties thereof and take the necessary steps to correct such information in an amendment or supplement to the Registration Statement or the Proxy Statement/Prospectus. No amendment or supplement to the Registration Statement will be made by PNR, and no amendment or supplement to the Proxy Statement/Prospectus will made by PNR or MLP, in each case without providing the other party a reasonable opportunity to review and comment thereon.

(c) PNR will advise MLP, promptly after PNR receives notice thereof, of (i) the time when the Registration Statement has become effective or any supplement or amendment has been filed, (ii) the issuance of any stop order or the suspension of the qualification of the shares of New Common Stock for offering or sale in any jurisdiction, (iii) the initiation or threat of any proceeding for any such purpose, or (iv) any request by the SEC for the amendment or supplement of the Registration Statement or the Proxy Statement/Prospectus or for additional information.

(d) MLP will use its commercially reasonable efforts to cause the Proxy Statement/Prospectus to be mailed to the MLP Unitholders as soon as practicable after the effective date of the Registration Statement.

Section 6.4Press Releases. Prior to an MLP Change in Recommendation, if any, neither MLP nor PNR shall, without the prior approval of (a) the MLP GP Conflicts Committee, in the case of PNR, and (b) PNR, in the case of MLP, issue any press release or written statement for general circulation relating to the Merger Transactions, except as otherwise required by applicable Law or the rules of the NYSE, in which case it will consult with the other party before issuing any such press release or written statement.

Section 6.5Access; Information.

(a) Upon reasonable notice and subjectSubject to applicable LawsLaw relating to the exchange of information, each party shall, and shall cause its Subsidiaries to, afford the Other Parties and their Representatives access, during normal business hours throughout the period prior to the Effective Time, to all of its properties, books, contracts, commitments and historical records as reasonably requested and, during such period, it shall, and shall cause its Subsidiaries to, furnish promptly to such Person and its Representatives a copy of each material report, schedule and other document filed by it pursuant to the requirements of federal or state securities law (other than reports or documents that PNR or MLP or their respective Subsidiaries, as the case may be, are not permitted to disclose under applicable Law). Notwithstanding the foregoing, neither MLP nor PNR nor any of their respective Subsidiaries shall be required to (A) provide access to or to disclose information where such access or disclosure would jeopardize the attorney-client privilege of the institution in possession or control of such information or contravene any Law, fiduciary duty or binding agreement entered into prior to the date of this Agreement or (B) allow any invasive sampling or testing of their properties. The parties hereto will make appropriate substitute disclosure arrangements under the circumstances in which the restrictions of the immediately preceding sentence apply.

(b) PNR and MLP, respectively, will not use any information obtained pursuant to this Section 6.5 (to which it was not entitled under Law or any agreement other than this Agreement) for any purpose unrelated (i) to the consummation of the Merger Transactions or (ii) the matters contemplated by Section 6.2 in accordance with the terms thereof, and will hold all information and documents obtained pursuant to this Section 6.5 in confidence. No investigation by either party of the business and affairs of the other shall affect or be deemed to modify or waive any representation, warranty, covenant or agreement in this Agreement, or the conditions to either party’s obligation to consummate the Merger Transactions.

Section 6.6Acquisition Proposals.

(a) MLP GP and MLP shall, and they shall cause their Subsidiaries and Representatives to, (i) immediately cease and terminate any solicitation, encouragement, discussions or negotiations with any Person that may be ongoing with respect to or that may reasonably be expected to lead to an Acquisition Proposal, and (ii) request such Person to promptly return or destroy all confidential information concerning MLP and its Subsidiaries.

(b) Neither MLP GP nor MLP shall, and they shall cause their Subsidiaries and use their commercially reasonable efforts to cause their Representatives not to, directly or indirectly, (i) initiate, solicit, knowingly encourage or knowingly facilitate (including by way of furnishing information) any inquiries regarding, or the making or submission of any proposal or offer that constitutes, or may reasonably be expected to lead to, anAcquisition Proposal, (ii) conduct or participate in any discussions or negotiations regarding any Acquisition Proposal, or (iii) furnish to any Person any non-public information or data relating to MLP or any of its Subsidiaries or afford access to the business, properties, assets, or, except as required by Law or the MLP Partnership Agreement, books or records of MLP or any of its Subsidiaries. Notwithstanding the foregoing, at any time prior to obtaining MLP Unitholder Approval, the MLP GP Conflicts Committee may take the actions described in clauses (ii) and (iii) of this Section 6.6(b) with respect to a third Person that makes a bona fide unsolicited Acquisition Proposal that did not result from a material breach of this Section 6.6(b) (a “Receiving Party”), if (A) the MLP GP Conflicts Committee, after consultation with its outside legal counsel and financial advisors, determines in good faith that such Acquisition Proposal constitutes or could reasonably be expected to result in a Superior Proposal and that the failure to take such action would be inconsistent with its duties under the MLP Partnership Agreement or applicable Law, and (B) prior to furnishing any such non-public information to such Receiving Party, MLP receives from such Receiving Party an executed Confidentiality Agreement. MLP GP and MLP shall, as promptly as practicable (and in any event within two Business Days), advise PNR in writing of any request for non-public information or any Acquisition Proposal received from any third Person, or any inquiry or request for discussions or negotiations with respect to any Acquisition ProposalParent and the material terms of such request, Acquisition Proposal or inquiry. MLP GP and MLP shall, as promptly as practicable (and in all events within 48 hours), provide to PNR copies of any written materials received by MLP GP, MLP or any of their Subsidiaries or Representatives in connection with any of the foregoing and the identity of the Person or group making any such request, Acquisition Proposal or inquiry.

(c) MLP GP and MLP shall keep PNR reasonably informed of the status of any material developments regarding any Acquisition Proposal on a reasonably current basis. MLP GP and MLP agree that they and their Subsidiaries will not enter into any Confidentiality Agreement with any Person that prohibits MLP GP or MLP or any of their Subsidiaries from providing any information to PNR in accordance with Section 6.5 or this Section 6.6.

(d) The MLP Parties acknowledge that the agreements contained in this Section 6.6 are an integral part of the Merger Transactions, and that, without these agreements, the PNR Parties would not have entered into this Agreement. Accordingly, (i) if a court of competent jurisdiction finds that the MLP GP Conflicts Committee materially breached or took action materially inconsistent with its duties under the MLP Partnership Agreement or applicable Law, (ii) if there shall have been any injunction or other order issued by any court of competent jurisdiction, or other legal restraint or prohibition (in each case based in whole or in part upon the finding described in clause (i)), that would (A) require or permit any of the MLP Parties or any of their Representatives to act or fail to act in a manner that would, in the absence of such injunction, order, legal restraint or prohibition, constitute a violation of this Section 6.6 or (B) limit the rights of the PNR Parties in any respect under this Section 6.6, and (iii) if the MLP Parties act or fail to act in a manner that would, in the absence of such injunction, order, legal restraint or prohibition, constitute a violation of this Section 6.6 that would permit PNR to terminate this Agreement pursuant to Section 8.1(b)(iv), then PNR shall have the right to terminate this Agreement pursuant to Section 8.1(b)(iv) hereof.

Section 6.7Takeover Laws. Neither MLP nor PNR shall take any action that would cause the Merger Transactions to be subject to requirements imposed by any Takeover Laws, and each of them shall take all

commercially reasonable steps within its control to exempt (or ensure the continued exemption of) the Merger Transactions from, or if necessary challenge the validity or applicability of, any applicable Takeover Law, as now or hereafter in effect, including Takeover Laws of any state that purport to apply to this Agreement or the Merger Transactions.

Section 6.8No Rights Triggered. MLP shall take all steps necessary to ensure that the entering into of this Agreement and the consummation of the Merger Transactions and any other action or combination of actions do not and will not result in the grant of any Rights to any person under the MLP Partnership Agreement or under any material agreement to which it or any of its Subsidiaries is a party.

Section 6.9New Common Stock Listed. PNR shall use its commercially reasonable efforts to list, prior to the Closing, on the NYSE, upon official notice of issuance, the shares of New Common Stock.

Section 6.10Third-Party Approvals.

(a) Subject to the terms and conditions of this Agreement, PNR and MLP and their respective Subsidiaries shall cooperate and use their respective commercially reasonable efforts to prepare all documentation, to effect all filings, to obtain all permits, consents, approvals and authorizations of all Governmental Authorities and third parties necessary to consummate the Merger Transactions, to comply with the terms and conditions of such permits, consents, approvals and authorizations and to cause the Merger to be consummated as expeditiously as practicable. Each of PNR and MLPCompany shall have the right to review in advance, and to the extent practicable each willshall consult with the other in each case subject to applicable Lawsconnection with, all of the information relating to Parent or the exchangeCompany, respectively, and any of informationtheir respective Subsidiaries, that appears in any filing made with, respect to, all materialor written informationmaterials submitted to, any third party and/or any Governmental AuthoritiesEntity in connection with the Merger Transactions. In exercising the foregoing right,rights, each of Parent and the parties hereto agrees toCompany shall act reasonably and promptly. Each party hereto agrees that it will consult withas promptly as practicable. Subject to applicable Law and the Other Parties with respect to instructions of any Governmental Entity, Parent and

the obtaining of all material permits, consents, approvals and authorizations of all third parties and Governmental Authorities necessary or advisable to consummate the Merger Transactions, and each party willCompany shall keep the Other Partiesone another reasonably apprised of the status of material matters relating to the completion of the Merger Transactions.

(b) Each of PNR and MLP agrees, upon request, to furnishTransactions, including promptly furnishing the other party with all information concerning itself, its Subsidiaries, directors, officerscopies of notices or other written communications received by Parent and unitholders and such other mattersthe Company, as the case may be, reasonably necessary or advisable in connection with any filing, notice or application made by or on behalf of such Other Party or any of such Other Party’s Subsidiaries to any Governmental Authority in connection with the Merger Transactions.

Section 6.11Indemnification; Directors’ and Officers’ Insurance.

(a) Without limiting any additional rights that any director, officer, trustee, employee, agent, or fiduciary may have under any employment or indemnification agreement or under the MLP Partnership Agreement, the MLP GP LLC Agreement, this Agreement or, if applicable, similar organizational documents or agreements of any of MLP’s Subsidiaries, from and after the Effective Time, PNR, PNR USA, MLP GP and the Surviving Entity, jointly and severally, shall: (i) indemnify and hold harmless each person who is at the date hereof or during any period from the date hereof through the Effective Time serving as a director or officer of MLP GP or of any of its Subsidiaries or as a trustee of (or in a similar capacity with) any Compensation and Benefit Plan of any thereof (collectively, the “Indemnified Parties”) to the fullest extent authorized or permitted by applicable Law in connection with any Claim or Action and any losses, claims, damages, liabilities, costs, Indemnification Expenses, judgments, fines, penalties and amounts paid in settlement (including all interest, assessments and other charges paid or payable in connection with or in respect of any thereof) resulting therefrom; and (ii) promptly pay on behalf of or, within 15 days after any request for advancement, advance to each of the Indemnified Parties any Indemnification Expenses incurred in defending, serving as a witness with respect to or otherwise participating with respect to any Claim or Action in advance of the final disposition of such Claim or Action, including payment on behalf of or advancement to the Indemnified Party of any IndemnificationExpenses incurred by such Indemnified Party in connection with enforcing any rights with respect to such

indemnification and/or advancement, in each case without the requirement of any bond or other security. The indemnification and advancement obligations of PNR, PNR USA, MLP GP and the Surviving Entity pursuant to this Section 6.11(a) shall extend to acts or omissions occurring at or before the Effective Time and any Claim or Action relating thereto (including with respect to any acts or omissions occurring in connection with the approval of this Agreement and the consummation of the Merger and the other Merger Transactions, including the consideration and approval thereof and the process undertaken in connection therewith and any Claim or Action relating thereto), and all rights toindemnification and advancement conferred hereunder shall continue as to any Indemnified Party who has ceased to be a director or officer of MLP GP after the date hereof and shall inure to the benefit of such person’s heirs, executors and personal and legal representatives. As used in this Section 6.11: (x) the term “Claim” means any threatened, asserted, pending or completed action or proceeding, whether instituted by any party hereto, any Governmental Authority or any other Person, or that any Indemnified Party in good faith believes might lead tothe institution of any action or proceeding, whether civil, criminal, administrative, investigative or other, including any arbitration or other alternative dispute resolution mechanism (“Action”), arising out of or pertaining to matters that relate to such Indemnified Party’s duties or service as a director or officer of MLP GP or of any of its Subsidiaries or as a trustee of (or in a similar capacity with) any Compensation and Benefit Plan of any thereof; (y) the term “Indemnification Expenses” means reasonable attorneys’ fees and all other reasonable costs, expenses and obligations (including experts’ fees, travel expenses, court costs, retainers, transcript fees, duplicating, printing and binding costs, as well as telecommunications, postage and courier charges) paid or incurred in connection with investigating, defending, being a witness in or participating in (including on appeal), or preparing to investigate, defend, be a witness in or participate in, any Claim for which indemnification is sought pursuant to this Section 6.11(a), including any Action relating to a claim for indemnification or advancement brought by an Indemnified Party; and (z) the phrase “to the fullest extent authorized or permitted by applicable Law” shall include, but not be limited to, (1) to the fullest extent permitted by any provision of the DGCL, the DRULPA or the DLCCA that authorizes or permits additional indemnification by agreement or otherwise, or the corresponding provision of any amendment to or replacement of the DGCL, the DRULPA or the DLCCA, and (2) to the fullest extent authorized or permitted by any amendments to or replacements of the DGCL, the DRULPA or the DLCCA adopted after the date of this Agreement that increase the extent to which an entity may indemnify its directors, officers, trustees, employees, agents, or fiduciaries or persons serving in any capacity in which any Indemnified Party serves. Any amendment, alteration or repeal of the DGCL, the DRULPA or the DLCCA that adversely affects any right of any Indemnified Party shall be prospective only and shall not limit or eliminate any such right with respect to any Claim or Action involving any occurrence or alleged occurrence of any action or omission to act that took place prior to such amendment or repeal. Neither PNR, PNR USA, MLP GP nor the Surviving Entity shall settle, compromise or consent to the entry of any judgment in any actual or threatened Claim or Action in respect of which indemnification has been or could be sought by such Indemnified Party hereunder unless such settlement, compromise or judgment includes an unconditional release of such Indemnified Party from all liability arising out of such Claim or Action without admission or finding of wrongdoing, or such Indemnified Party otherwise consents thereto.

(b) Without limiting the foregoing, PNR, PNR USA, MLP GP, MLP and MergerCo agree that all rights to indemnification, advancement of expenses and exculpation from liabilities for acts or omissions occurring at or prior to the Effective Time now existing in favor of the Indemnitees as provided in the MLP Partnership Agreement or the MLP GP LLC Agreement (or, as applicable, the charter, bylaws, partnership agreement, limited liability company agreement, or other organizational documents of any of MLP’s Subsidiaries) and indemnification agreements of MLP or MLP GP or any of their respective Subsidiaries, from any Governmental Entity and/or third party with respect to the Transactions, and, to the extent practicable under the circumstances, shall provide the other Party and its counsel with the opportunity to participate in any meeting with any Governmental Entity in respect of any filing, investigation or other inquiry in connection with the Transactions.

(b) Notwithstanding anything herein to the contrary, Parent shall take any and all action necessary, including (i) agreeing or proffering to divest or hold separate (in a trust or otherwise), or take any other action with respect to, any of the assets or businesses of Parent or the Company or any of their respective Affiliates or, assuming the consummation of the Mergers, the Surviving Company or any of its Affiliates, (ii) agreeing or proffering to limit in any manner whatsoever or not to exercise any rights of ownership of any securities (including the shares of Company Class A Common Stock, Company Class B Common Stock or the Opco LLC Units), (iii) agreeing to terminate any existing relationships, contractual rights or obligations of Parent, the Company, the Surviving Company or any of their respective Affiliates or (iv) entering into any agreement that in any way limits the ownership or operation of any business, properties or assets of Parent, the Company, the Surviving Company or any of their respective Affiliates (provided, however, that any such action may, at the discretion of Parent, be conditioned upon consummation of the Mergers) (each a “Divestiture Action”) to ensure that no Governmental Entity enters any order, decision, judgment, decree, ruling, injunction (preliminary or permanent), or establishes any Law or other action preliminarily or permanently restraining, enjoining or prohibiting the consummation of the Mergers, or to ensure that no Governmental Entity with the authority to clear, authorize or otherwise approve the consummation of the Mergers, fails to do so by the Outside Date; provided, further, however, that, notwithstanding any other provision of this Agreement to the contrary, none of Parent or any of its Subsidiaries shall be required to take or agree to take any Divestiture Action in each case to the extent such Divestiture Action would reasonably be expected to have a Regulatory Material Adverse Effect. For purposes of this Agreement, the terms “Regulatory Material Adverse Effect” means a material adverse effect on the financial condition, business, revenue or EBITDA of Parent and its Subsidiaries, taken as a whole from and after the Effective Time.

Section 5.6 Takeover Laws. Each of Parent, the Parent Board, the Company and the Company Board shall (a) take no action to cause any Takeover Law to become applicable to this Agreement or the Transactions and (b) if any Takeover Law is or becomes applicable to this Agreement or the Transactions, take all reasonable action necessary to ensure that the Transactions may be consummated as promptly as practicable on the terms contemplated by this Agreement and otherwise to minimize the effect of such Takeover Law with respect to this Agreement and the Transactions.

Section 5.7 Notification of Certain Matters. Each of Parent and the Company shall promptly notify the other Party of (a) any notice or other communication received by such Party from any Governmental Entity in connection with Transactions or from any Person alleging that the consent of such Person is or may be required in connection with the Transactions, (b) any other material notice or material communication from any Governmental Entity in connection with the Transactions, (c) any Action commenced or, to such Party’s knowledge, threatened against, that questions the validity or legality of the Transactions or seeks damages in connection therewith or (d) (i) any change, condition or event that results in any of the conditions in Sections 7.2(a) or 7.3(a) not being met or (ii) the failure of such Party to comply with or satisfy in any material respect any covenant, condition or agreement (including any condition set forth in Article VI) to be complied with or satisfied hereunder; provided, however, that no such notification shall affect any of the representations, warranties, covenants, rights or remedies, or the conditions to the obligations of, the Parties.

Section 5.8 Indemnification, Exculpation and Insurance.

(a) Each Parent Party acknowledges and agrees that nothing in this Section 5.8 is intended to limit any other rights that any current or former director or officer of the Company or any of its Subsidiaries (collectively,

the “Indemnified Persons”) may have pursuant to any employment agreement or indemnification agreement in effect on the date hereof or otherwise. Each Parent Party further agrees, and shall cause the Surviving Company to take all action reasonably necessary to ensure, that all rights to indemnification, exculpation and expense advancement and reimbursement existing in favor of the Indemnified Persons of the Company as provided in any indemnification agreements with such Indemnified Persons and in the Company Organizational Documents as in effect on the date of this Agreement for acts or omissions occurring prior to the Effective Time shall be assumed and performed by the Surviving Entity, MLP GP, PNRCompany (and Parent shall fully guarantee the performance and PNR USA inpayment thereof by the Merger, without further action, at the Effective Time and shall survive the MergerSurviving Company) and shall continue in full force and effect until the expiration of the applicable statute of limitations with respect to any claims against such Indemnified Persons arising out of such acts or omissions, except as otherwise required by applicable Law. For the avoidance of doubt, Parent shall amend any applicable organizational documents of the Surviving Company as necessary in accordanceorder to ensure that such indemnification and exculpation rights are assumed and performed by the Surviving Company.

(b) Parent and the Surviving Company will cause to be put in place, and Parent shall fully prepay prior to the Effective Time, “tail” insurance policies with their terms.

(c) For a claims reporting or discovery period of at least six years from the Effective Time PNR shall maintain in effect(the “Tail Period”) from an insurance carrier with the same or better credit rating as the Company’s current insurance carrier with respect to directors’ and officers’ liability insurance (“D&O Insurance”) in an amount and fiduciary insurance policies covering the Indemnified Parties (but may substitute therefor other policies, including an insurance tail policy, ofscope at least as favorable as the same coverage and amounts containing terms and conditions that are no less advantageous to the Indemnified Parties so long as that substitution does not result in gaps or lapses in coverage)Company’s existing policies with respect to matters, acts or omissions existing or occurring onat, prior to, or beforeafter the Effective Time.

Time; provided, however, that in no event shall the aggregate cost of the D&O Insurance exceed during the Tail Period 300% of the current aggregate annual premium paid by the Company for such purpose (which current aggregate annual premium is hereby represented and warranted by the Company to be as set forth in Section 5.8(b) of the Company Disclosure Letter); and provided, further, that if the cost of such insurance coverage exceeds such amount, the Surviving Company shall obtain a policy with the greatest coverage available for a cost not exceeding such amount.

(d) If PNR, PNR USA, MLP GP(c) In the event that Parent or the Surviving EntityCompany, or any of their respective successors or assigns, shall (i) consolidatesconsolidate with or merges with ormerge into any other Person and shall not be the continuing or surviving corporation partnership or other entity of such consolidation or merger or (ii) transfers or conveystransfer all or substantially all of its properties and assets to any Person, then, and in each such case, Parent shall cause proper provision shallto be made so that the successorssuccessor and assignsassign of PNR, PNR USA, MLP GPParent or the Surviving Entity assume, including by operation of law,Company (as applicable) assumes the obligations set forth in this Section 6.11. 5.8.

(e) This (d) The provisions of this Section 6.11 5.8 shall survive the consummation of the MergerMergers and isare intended to be for the benefit of, and shallwill be enforceable by, each indemnified party, his or her heirs and his or her legal representatives.

Section 5.9 Certain NYSE and SEC Matters.

(a) Parent shall use its reasonable best efforts to cause the Indemnified Partiesshares of Parent Common Stock to be issued in such Mergers, and such other shares of Parent Common Stock to be reserved for issuance in connection with such Mergers, in each case, as provided for in Article II, to be approved for listing on the NYSE, subject to official notice of issuance, prior to the Effective Time.

(b) Prior to the Closing, the Company shall cooperate with Parent and use reasonable best efforts to take, or cause to be taken, all actions, and do or cause to be done all things, reasonably necessary, proper or advisable on its part under applicable Law and the Indemniteesrules and their respective heirs and personal representatives, and shall be binding on PNR, PNR USA, MLP GPpolicies of the NYSE to enable the delisting by the Surviving Company of the Company Class A Common Stock from the NYSE and the Surviving Entity and their respective successors and assigns.deregistration of the Company Class A Common Stock under the Exchange Act as promptly as practicable after the Effective Time.

Section 6.12Notification of Certain Matters5.10 Stockholder Litigation. Each of MLPthe Company and PNRParent shall give prompt noticethe other Party the opportunity to participate in the defense and settlement of any stockholder litigation against such Party and/or its officers or directors relating to the Transactions and shall consider in good faith the other of (a) any fact, event or circumstance known to it that (i) could reasonably be expected, individually or taken together with all other facts, events and circumstances known to it, to result in any Material Adverse EffectParty’s advice with respect to it, or (ii) could cause or constitute a material breachsuch stockholder litigation. Prior to the Closing, neither Parent nor the Company will enter into any settlement agreement in respect of any stockholder litigation against such Party and/or its directors or officers relating to the Transactions without the other Party’s prior written consent (such consent not to be unreasonably withheld, conditioned or delayed).

Section 5.11 Certain Tax Matters.

(a) Each of the Parent and the Company shall, and shall cause its representations, warranties, covenantsSubsidiaries to, use its reasonable best efforts to cause the Integrated Mergers, taken together, to qualify as a “reorganization” within the meaning of Section 368(a) of the Code. Neither Parent nor the Company shall (nor shall they permit their respective Subsidiaries to) take any action (whether or agreements contained herein, and (b)(i)not otherwise permitted under this Agreement), or cause any change in its financial conditionaction to be taken, which action would prevent or businessimpede, or that results in, or could reasonably be expected to resultprevent or impede, the Integrated Mergers, taken together, from qualifying as a “reorganization” within the meaning of Section 368(a) of the Code. Each of Parent and the Company will notify the other Party promptly after becoming aware of any reason to believe that the Integrated Mergers, taken together, may not qualify as a “reorganization” within the meaning of Section 368(a) of the Code.

(b) This Agreement is intended to constitute, and the Parties hereto adopt this Agreement as, a “plan of reorganization” within the meaning of Treasury Regulations Sections 1.368-2(g) and 1.368-3(a). The relevant Parties shall treat the Integrated Mergers, taken together, as a “reorganization” within the meaning of Section 368(a) of the Code for U.S. federal, state and other relevant income Tax purposes, shall file all their Tax Returns consistent with such tax treatment and, except to the extent otherwise required by a final “determination” within the meaning of Section 1313(a) of the Code, take no Tax position inconsistent with such Tax treatment.

(c) Each of Parent and the Company shall reasonably cooperate and use its reasonable best efforts, in order for the Company to obtain the opinion of counsel referred to in Section 6.3(d). In connection therewith, (i) the Company shall deliver to such counsel a Material Adverse Effectduly authorized and executed officer’s certificate, dated as of the Closing Date (and, if requested, dated as of such additional dates as may be necessary in connection with the preparation, filing and delivery of the Form S-4 or the Joint Proxy Statement), containing such representations as shall be reasonably necessary or appropriate to enable such counsel to render the opinion described in Section 6.3(d) (the “Company Officer’s Tax Certificate”), and (ii) Parent shall deliver to such counsel a duly authorized and executed officer’s certificate, dated as of the Closing Date (and, if requested, dated as of such additional dates as may be necessary in connection with the preparation, filing and delivery of the Form S-4 or the Joint Proxy Statement), containing such representations as shall be reasonably necessary or appropriate to enable such counsel to render the opinion described in Section 6.3(d) (the “Parent Officer’s Tax Certificate”), and Parent and the Company shall provide such other information as reasonably requested by counsel for purposes of rendering the opinion described in Section 6.3(d) (or any opinions to be filed in connection with the Form S-4 or the Joint Proxy Statement).

(d) Parent, the Company and Opco LLC acknowledge and agree that, for U.S. federal income tax purposes (and for the purposes of any applicable state or local Tax that follows the U.S. federal income tax treatment), the Opco Merger is intended to be treated with respect to it or (iii) any litigation or governmental complaints, investigations or hearings,the holders (other than the Company) of Opco LLC Units as a taxable sale by each such holder of the Opco LLC Units held by such holder in exchange for the Opco Merger Consideration, and Parent, the Company and Opco shall file their respective Tax Returns consistent with the intended tax treatment described above and, except to the extent otherwise required by a final “determination” within the meaning of Section 1313(a) of the Code, take no Tax position inconsistent with such litigation, complaints, investigations,Tax treatment.

Section 5.12 Dividends. After the date of this Agreement, subject to the restrictions set forth in Section 5.1, each of the Company and Parent shall coordinate with the others the declaration of any dividends in respect of Company Class A Common Stock, Opco LLC Units and Parent Common Stock and the record dates and payment dates relating thereto, it being the intention of the Parties that holders of Company Class A Common Stock and Opco LLC Units shall not receive two dividends, or hearingsfail to receive one dividend, for any quarter with respect to their shares of Company Class A Common Stock or Opco LLC Units (as applicable), on the one hand, and any shares of Parent Common Stock any such holder receives in exchange therefor in the Mergers, on the other.

Section 5.13 Public Announcements. Each of the Parties shall, and each will cause its Representatives to, consult with the other Parties before issuing, and give each other a reasonable opportunity to review and

comment upon, any press release or other public statements with respect to this Agreement and the Transactions and shall not issue any such press release or make any public announcement without the prior written approval of the other Parties (which approval may not be unreasonably withheld, conditioned or delayed), except as may be required by applicable Law, court process or obligations pursuant to any listing agreement with any national securities exchange or national securities quotation system; provided that, notwithstanding the foregoing, a Party may, without the prior approval of the other Parties or providing the other Parties the opportunity for such consultation and review, issue a press release or make a public statement that is consistent with prior press releases or public statements made in compliance with this Section 5.13 or any communication plan or strategy previously agreed to by Parent and the Company. The initial press release of the Parties announcing the execution of this Agreement shall be a joint press release of Parent and the Company in a form that is mutually agreed. For the avoidance of doubt, nothing in this Section 5.13 shall (i) prevent Parent or the Company from issuing any press release or making any public statement in the ordinary course that does not relate specifically to this Agreement or the Merger Transactions, (ii) be deemed to restrict the ability of any Party to communicate to its employees or resultRepresentatives in or coulda manner that would not be reasonably be expected to result in, a Material Adverse Effectrequire public disclosure by the disclosing Party, or (iii) be deemed to require any Party to consult with or obtain any approval from any other Party with respect to it.a public announcement or press release issued in connection with the receipt and existence of a Superior Proposal or proposal would reasonably be expected to lead to a Superior Proposal, and matters related thereto or an Adverse Recommendation Change with respect to the Company Recommendation or Parent Recommendation, as applicable, other than as set forth in Section 5.2.

Section 6.13Rule 16b-35.14 Section 16 Matters. Prior to the Effective Time, MLPeach of Parent and the Company shall take all such steps as may be reasonably requested by any party heretonecessary or appropriate to cause the Transactions, including any dispositions of MLP equity securities of the Company (including MLP Phantom Units) pursuant toderivative securities) or acquisitions of equity securities of Parent (including derivative securities) resulting from the Merger Transactions by each individual who is a directorsubject to the reporting requirements of Section 16(a) of the Exchange Act with respect to the Company or officer of MLP GPwill become subject to such reporting requirements with respect to Parent to be exempt under Rule 16b-3 promulgated under the Exchange Act in accordance with that certain No-Action Letter dated January 12, 1999 issued by the SEC regarding such matters.Act.

Section 6.14MLP GP Conflicts Committee5.15 Employee and Employment Benefit Matters. Prior to

(a) For a period of at least one year following the Effective Time, neither any PNR Party norParent shall cause the Surviving Company to provide each individual who is employed by the Company or any of theirits Subsidiaries shall, without the consent of at least three members of the MLP GP Conflicts Committee, eliminate the MLP GP Conflicts Committee, revoke or diminish the authority of the MLP GP Conflicts Committee or remove or cause the removal of any director of MLP GP that is a member of the MLP GP Conflicts Committee either as a director or as a member of such committee. For the avoidance of doubt, this Section 6.14 shall not apply to the filling, in accordance with the provisions of the MLP GP LLC Agreement, of any vacancies caused by a resignation of any such director.

Section 6.15Conversion of Equity Awards.

(a)Adoption of MLP LTIP. Subject to Section 6.15(c), prior to the Effective Time, the PNR board of directors or the PNR Compensation and Management Development Committee shall adopt the MLP LTIP, authorize the conversion of MLP Phantom Units into PNR Restricted Stock Units in accordance with Section 3.1(e)(i) at the Effective Time, and shall take such other actions as may be necessary to authorize the events contemplated in Section 3.1(e); such actions shall include the following: (i) effective as of the Effective Time, the MLP LTIP shall be continued by PNR and all MLP obligations thereunder assumed by PNR (including obligations with respect to MLP Phantom Units in accordance with Section 3.1(e)(i) hereof) and such plan shall continue in effect subject to amendment, termination, and/or suspension in accordance with the terms of the MLP LTIP, notwithstanding the Merger, applicable laws and regulations and the applicable rules of any stock exchange; (ii) from and after the Effective Time all references to MLP Common Units in the MLP LTIP shall be substituted with references to shares of PNR Common Stock; (iii) the number of shares of PNR Common Stock that will be available for grant and delivery under the MLP LTIP from and after the Effective Time shall equal the number of MLP Common Units that were available for grant and delivery under the MLP LTIP immediately prior to the Effective Time and who continues employment with the Surviving Company or any of its Subsidiaries as adjusted to giveof the Closing Date (each, a “Company Employee”) with (i) a base salary or wage rate that is no less favorable than the base salary or wage rate in effect for such Company Employee immediately prior to the Exchange Ratio (which number will includeEffective Time, and (ii) health, paid time off and retirement benefits and annual cash incentive opportunities that are no less favorable, in the

number aggregate, than the health, paid time off and retirement benefits and annual cash incentive opportunities provided to similarly situated employees of shares of PNR Common Stock subject to the PNR Restricted Stock Units that will be issued upon conversion of MLP Phantom Units in accordance with Section 3.1(e)), and the time during which those shares shall be available for grant under the MLP LTIP shall not extend beyond April 28, 2018; (iv) fromParent. From and after the Effective Time, awardsParent shall cause the Surviving Company, to continue and honor its obligations under all employment, severance, change in control and other agreements, if any, between the MLP LTIP may be granted only to those individualsCompany (or a Subsidiary thereof) and each individual who were eligible to receive awards underis employed by the MLP LTIP immediately before the Effective Time (includingCompany or any individuals hired on and after the Effective Time who would have been eligible for such awards pursuant to the eligibility provisions of the MLP LTIP as in effectits Subsidiaries immediately prior to the Effective Time);Time.

(b) For purposes of eligibility to participate, vesting and (v) no participant in the MLP LTIP shall have any right to acquire MLP Common Units under the MLP LTIP from and after the Effective Time. PNR shall reservecalculation of vacation or severance benefit entitlements (but not for issuance a numberpurposes of shares of PNR Common Stock equal to the number of shares of PNRCommon Stock that will be available for grant and delivery under the MLP LTIP from and after the Effective Time, including shares of PNR Common Stock that will be subject to PNR Restricted Stock Units as a result of the actions contemplated by Section 3.1(e)(i). As soon as practicable following the Effective Time, PNR shall file a Form S-8 registration statementdefined benefit pension accrual or post-employment retiree welfare benefits) with respect to the sharesbenefit plans, programs, arrangements, policies and practices maintained by Parent or any of PNR Common Stock available for grant and delivery under the MLP LTIP from andits Subsidiaries providing benefits to any Company Employee after the Effective Time and shall maintainClosing Date, each Company Employee’s years of service with the effectivenessCompany or any of such registration statement (and maintain the current statusits Subsidiaries (or any predecessor employer of an employee of the prospectus contained therein) for so long as such shares are available for grant and delivery under the MLP LTIP. PriorCompany or any of its Subsidiaries, to the EffectiveTime, PNR shall takeextent service with such steps as may be reasonably requested by any party hereto to cause the acquisition of PNR Restricted Stock Units and shares of PNR Common Stock pursuant to the Merger Transactions by each individual whopredecessor employer is an officer or director of PNR to be exempt under Rule 16b-3 promulgated under the Exchange Act in accordance with that certain No-Action Letter dated January 12, 1999 issuedrecognized by the SEC regarding such matters.

(b)MLP Actions. As soonCompany or the applicable Subsidiary as practicable following the Effective Time, MLP shall file a post-effective amendment to the Form S-8 registration statement filed by MLP on May 2, 2008, deregistering all Common Units thereunder. Prior to the Effective Time, the MLP GP Board shall take such action and adopt such resolutions as are required to (i) effectuate the treatment of the MLP Phantom Units pursuant to the terms of Section 3.1(e)date of this Agreement, and (ii) prevent and waive the forfeiture of any MLP Phantom Units that would otherwise be forfeited pursuant to Section 6(b)(iii) of the MLP LTIP.

(c)Election Not to Adopt MLP LTIP. Notwithstanding anything to the contrary in Section 6.15(a), the PNR board of directors or the PNR Compensation and Management Development Committee may, at its option,Agreement) prior to the Effective Time authorizeshall be treated as service with Parent or its Subsidiaries; provided, however, that such service need not be recognized to the conversionextent (A) that such recognition would result in any duplication of MLP Phantom Units into PNR Restricted Stock Unitsbenefits for the same period of service or (B) that such service is not recognized by the Company or any of its Subsidiaries, as applicable, under any

applicable Company Plan in which the PNR LTIPCompany Employee was eligible to participate prior to the Effective Time.

(c) For purposes of each benefit plan of Parent or its Subsidiaries in accordance with Section 3.1(e)(i)which any Company Employee is eligible to be effective atparticipate after the Effective Time, Parent shall use commercially reasonable efforts to (i) cause all pre-existing condition exclusions, waiting periods, evidence of insurability and may,actively-at-work requirements to be waived for each Company Employee and their covered dependents, to the extent such conditions were inapplicable or waived under the comparable Company Plan in which such event, elect eitherCompany Employee participated immediately prior to adopt or notthe Closing Date and (ii) give full credit for all co-payments, coinsurance, maximum out-of-pocket requirements and deductibles to adopt the MLP LTIP. Inextent satisfied in the eventplan year in which the Effective Time occurs as if there had been a single continuous employer.

(d) Effective as of the day prior to the Effective Time but contingent upon the Closing, the Company shall cause to be approved board resolutions terminating the Parsley Energy, Inc. 401(k) Plan (the “Company 401(k) Plan”) unless Parent provides written notice to the Company that the PNR board of directors or the PNR Compensation and Management Development Committee electsCompany 401(k) Plan shall not to adopt the MLP LTIP pursuant to this Section 6.15(c), the provisions of Section 6.15(a) shall continue to apply in full force and effect pursuant to their terms other than those provisions of Section 6.15(a) that relatebe terminated. Unless Parent provides such written notice to the adoptionCompany, the Company shall provide Parent copies of such board resolutions. Effective as soon as administratively practicable following the Closing, each Company Employee shall be eligible to participate in a tax-qualified defined contribution plan established or designated by Parent (the “Parent 401(k) Plan”), subject to the terms and conditions of the MLP LTIP.Parent 401(k) Plan. As soon as practicable after the Closing and to the extent not prohibited under applicable Law, Parent shall take all action necessary to provide that each Company Employee may elect to rollover his or her full account balance in the Company 401(k) Plan in cash to the Parent 401(k) Plan.

ARTICLE VII

CONDITIONS TO CONSUMMATION OF THE MERGER

The obligations(e) This Section 5.15 shall be binding upon and shall inure solely to the benefit of each of the partiesParties, and nothing in this Section 5.15, express or implied, (i) is intended to consummateconfer upon any other Person (including any current or former directors, officers, consultants or employees of the Company or any of its Subsidiaries or, on or after the Effective Time, the Surviving Company or any of its Subsidiaries) any rights or remedies of any nature whatsoever, (ii) is intended to be, shall constitute or be construed as an amendment to or modification of any employee benefit plan, program, policy, agreement or arrangement of Parent, the Company, the Surviving Company or any respective Subsidiary thereof or (iii) obligates Parent or any of its Subsidiaries to retain the employment of any particular employee of the Company or any of its Subsidiaries following the Effective Time.

Section 5.16 Delivery of Written Consents. Promptly following the execution of this Agreement, Parent will, in accordance with applicable Law and the Parent Organizational Documents, in its capacity as the sole stockholder of Merger are conditioned uponSub Inc., deliver to the Company a duly executed written consent adopting this Agreement and the Transactions on behalf of Merger Sub Inc. Concurrently with the execution of this Agreement, (a) Parent has, in accordance with applicable Law and the Parent Organizational Documents, in its capacity as the sole member of Merger Sub LLC, delivered to the Company a duly executed written consent adopting this Agreement and the Transactions on behalf of Merger Sub LLC; (b) Parent has, in accordance with applicable Law and the Parent Organizational Documents, in its capacity as the sole member of Opco Merger Sub LLC, delivered to the Company a duly executed written consent adopting this Agreement and the Transactions on behalf of Opco Merger Sub LLC; and (c) the Company has, in accordance with applicable Law and the Opco LLC Agreement, in its capacity as the holder of more than a majority of the issued and outstanding Opco LLC Units, delivered to Parent a duly executed written consent adopting this Agreement on behalf of Opco LLC.

Section 5.17 Obligations of Parent Parties and Company Parties. Parent shall take all action necessary to cause Merger Sub Inc., the Surviving Corporation, Merger Sub LLC, the Surviving Company, Opco Merger Sub LLC and the Opco Surviving Company to perform their respective obligations under this Agreement. The Company shall take all action necessary to cause Opco LLC to perform its obligations under this Agreement.

ARTICLE VI

CONDITIONS PRECEDENT

Section 6.1 Conditions to the Parties Obligation to Effect the Mergers. The obligation of each Party to effect the Mergers is subject to the satisfaction at or prior to the Closing (or, in the case of Sections 7.2, 7.3, 7.6 or 7.7, waiver by both MLP and PNR; or, in the case of Sections 7.4 or 7.8(a), waiver by MLP; or, in the case of Sections 7.5 or 7.8(b), waiver by PNR) of eachEffective Time of the following:following conditions:

Section 7.1Unitholder(a) Stockholder Approvals. The Parent Stockholder Approval. This Agreement and the Merger TransactionsCompany Stockholder Approval shall each have been obtained in accordance with applicable Law and the Company Organizational Documents and the Parent Organizational Documents, as applicable.

(b) HSR Act; Antitrust. Any applicable waiting period (and any extension thereof) under the HSR Act relating to the Mergers shall have expired or been approvedterminated.

(c) No Injunctions or Legal Restraints; Illegality. No temporary restraining order, preliminary or permanent injunction or other judgment, order or decree or other legal restraint or prohibition issued by the affirmative vote of holders, as of the record date for the MLP Meeting, of a majority of the outstanding MLP Common Units (the “MLP Unitholder Approval”).

Section 7.2Governmental Approvals. All filings required to be made prior to the Effective Time with, and all other consents, approvals, permits and authorizations required to be obtained prior to the Effective Time from,

any Governmental Authority in connection with the execution and delivery of this Agreement and the consummation of the Merger Transactions by the parties hereto or their Affiliates shall have been made or obtained, except where the failure to obtain such consents, approvals, permits and authorizations could not be reasonably likely to result in a Material Adverse Effect on PNR or MLP; provided, however, that, prior to invoking this condition, the invoking party shall have complied fully with its obligations under Section 6.10.

Section 7.3No Injunction. No order, decree or injunction ofEntity having jurisdiction over any court or agency of competent jurisdictionParty shall be in effect, and no Law shall have been enacted, entered, promulgated, enforced or adopted,deemed applicable by any Governmental Entity that, enjoins,in any such case, prohibits or makes illegal consummation of any of the Merger Transactions, and no action, proceeding or investigation by any Governmental Authority with respect to the Merger or the other Merger Transactions shall be pending that seeks to restrain, enjoin, prohibit or delay consummation of the Merger orMergers.

(d) NYSE Listing. The shares of Parent Common Stock to be issued in the Mergers, and such other Merger Transaction orshares of Parent Common Stock to impose any material restrictions or requirements thereon or on PNR or MLPbe reserved for issuance in connection with respect thereto; provided, however, that, prior to invoking this condition, the invoking party shall have complied fully with its obligations under Section 6.1.

Section 7.4Representations, Warranties and Covenants of the PNR Parties.In the case of MLP’s obligation to consummate the Merger:

(a) Each of the representations and warranties contained herein of PNR, PNR USA and MergerCo set forth in Article V of this Agreement qualified as to materiality or Material Adverse Effect shall be true and correct in all respects and those not so qualified shall be true and correct in all material respects,such Mergers, in each case, as of the date of this Agreement and upon the Closing Date with the same effect as though all such representations and warranties had been made on the Closing Date (in either case, exceptprovided for any such representations and warranties made as of a specified date, in which case as of such date).

(b) Each and all of the agreements and covenants of PNR, PNR USA and MergerCo to be performed and complied with pursuant to this Agreement on or prior to the Effective Time shall have been duly performed and complied with in all material respects.

(c) MLP shall have received a certificate signed by the Chief Executive Officer, President, Chief Financial Officer or Executive Vice President and General Counsel of PNR, dated as of the Closing Date, to the effect set forth in Section 7.4(a) and Section 7.4(b).

Section 7.5Representations, Warranties and Covenants of the MLP Parties. In the case of PNR’s obligation to consummate the Merger:

(a) Each of the representations and warranties contained herein of MLP and MLP GP set forth in Article V of this Agreement qualified as to materiality or Material Adverse Effect shall be true and correct in all respects and those not so qualified shall be true and correct in all material respects, in each case, as of the date of this Agreement and upon the Closing Date with the same effect as though all such representations and warranties had been made on the Closing Date (in either case, except for any such representations and warranties made as of a specified date, in which case as of such date);provided, however, that no representations and warranties shall be deemed to be untrue or incorrect to the extent that any MLP Party or PNR Party had Knowledge of such inaccuracy at the date hereof;provided, further, however, that the immediately preceding proviso shall not be effective if any member of the MLP GP Conflicts Committee had actual knowledge of any such inaccuracy at the date hereof.

(b) Each and all of the agreements and covenants of MLP and MLP GP to be performed and complied with pursuant to this Agreement on or prior to the Effective Time shall have been duly performed and complied with in all material respects.

(c) PNR shall have received a certificate signed by the Chief Executive Officer, Chief Financial Officer or Executive Vice President and General Counsel of MLP GP, dated the Closing Date, to the effect set forth in Section 7.5(a) and Section 7.5(b).

Section 7.6Effective Registration Statement. The Registration Statement shall have become effective under the Securities Act and no stop order suspending the effectiveness of the Registration Statement shall have been issued and no proceedings for that purpose shall have been initiated or threatened by the SEC.

Section 7.7NYSE Listing. The shares of New Common StockII shall have been approved for listing on the NYSE, subject to official notice of issuance.

(e) Form S-4. The Form S-4 shall have been declared effective by the SEC under the Securities Act and no stop order suspending the effectiveness of the Form S-4 shall have been issued and no proceedings for that purpose shall have been initiated.

Section 7.8No Material Adverse6.2 Conditions to the Obligations of the Parent Parties to Effect the Mergers. The obligation of the Parent Parties to effect the Mergers is also subject to the satisfaction, or waiver by Parent, at or prior to the Effective Time of the following conditions:

(a) InRepresentations and Warranties. (i) Each of the caserepresentations and warranties of MLP’s obligation to consummate the Merger, thereCompany Parties set forth in the first sentence of Section 3.1(a), Section 3.2(a), Section 3.2(c), Section 3.2(f), Section 3.4, and Section 3.9(b) shall not have occurred a Material Adverse Effect with respect to PNR betweenbe true and correct as of the date of this Agreement and as of the Closing Date.

(b) InDate as if made as of the case of PNR’s obligation to consummate the Merger, there shall not have occurred a Material Adverse EffectClosing Date (except, with respect to MLP betweenSection 3.2(a) and Section 3.2(c), for any de minimis inaccuracies) (except to the extent such representations and warranties expressly relate to an earlier date, in which case as of such earlier date); (ii) each of the other representations and warranties of the Company Parties set forth in Section 3.2 shall be true and correct in all material respects as of the date of this Agreement and as of the Closing Date.Date as if made on and as of the Closing Date (except to the extent such representations and warranties expressly relate to an earlier date, in which case as of such earlier date); and (iii) each of the remaining representations and warranties of the Company Parties set forth in this Agreement shall be true and correct, in each case as of the date of this Agreement and as of the Closing Date as if made as of the Closing Date (except to the extent such representations and warranties expressly relate to an earlier date, in which case as of such earlier date), except, in the case of this clause (iii), where the failure of such representations and warranties to be so true and correct (without regard to qualification or exceptions contained therein as to “materiality,” “in all material respects” or “Company Material Adverse Effect”) would not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect.

(b) Performance of Obligations of the Company Parties. Each Company Party shall have performed, or complied with, in all material respects all covenants and obligations required to be performed or complied with by it under this Agreement at or prior to the Effective Time.

(c) Officers Certificate. Parent shall have received a certificate, substantially in the form attached hereto as Exhibit C, signed by an executive officer of the Company certifying as to the matters set forth in Section 6.2(a) and Section 6.2(b).

Section 6.3 Conditions to the Obligations of the Company Parties to Effect the Mergers. The obligation of the Company Parties to effect the Mergers is also subject to the satisfaction, or waiver by the Company, at or prior to the Effective Time of the following conditions:

(a) Representations and Warranties. (i) Each of the representations and warranties of the Parent Parties set forth in the first sentence of Section 4.1(a), Section 4.2(a), Section 4.2(c), Section 4.2(e), Section 4.2(f), Section 4.4 andSection 4.9(b) shall be true and correct as of the date of this Agreement and as of the Closing Date as if made as of the Closing Date (except, with respect to Section 4.2(a), Section 4.2(c), Section 4.2(e) and Section 4.2(f), for any de minimis inaccuracies) (except to the extent such representations and warranties expressly relate to an earlier date, in which case as of such earlier date); (ii) each of the other representations and warranties of the Parent Parties set forth in Section 4.2 shall be true and correct in all material respects as of the date of this Agreement and as of the Closing Date as if made on and as of the Closing Date (except to the extent such representations and warranties expressly relate to an earlier date, in which case as of such earlier date); and (iii) each of the remaining representations and warranties of the Parent Parties set forth in this Agreement shall be true and correct, in each case as of the date of this Agreement and as of the Closing Date as if made as of the Closing Date (except to the extent such representations and warranties expressly relate to an earlier date, in which case as of such earlier date), except, in the case of this clause (iii), where the failure of such representations and warranties to be so true and correct (without regard to qualification or exceptions contained therein as to “materiality,” “in all material respects” or “Parent Material Adverse Effect”) would not reasonably be expected to have, individually or in the aggregate, a Parent Material Adverse Effect.

(b) Performance of Obligations of the Parent Parties. Each Parent Party shall have performed, or complied with, in all material respects all covenants and obligations required to be performed or complied with by it under this Agreement at or prior to the Effective Time.

(c) Officers Certificate. The Company shall have received a certificate, substantially in the form attached hereto as Exhibit D, signed by an executive officer of Parent certifying as to the matters set forth in Section 6.3(a) and Section 6.3(b).

(d) Tax Opinion. The Company shall have received an opinion from Vinson & Elkins L.L.P., counsel to the Company, or another nationally recognized law firm reasonably satisfactory to the Company, in form and substance reasonably satisfactory to the Company, dated as of the Closing Date, to the effect that, on the basis of the facts, representations and assumptions set forth or referred to in such opinion, the Integrated Mergers, taken together, will qualify as a “reorganization” within the meaning of Section 368(a) of the Code. In rendering the opinion described in this Section 6.3(d), such counsel shall have received and may rely upon the Parent Officer’s Tax Certificate and the Company Officer’s Tax Certificate and such other information reasonably requested by and provided to it by Parent or the Company for purposes of rendering such opinion.

Section 6.4 Frustration of Closing Conditions. No Party may rely on, either as a basis for not consummating the Mergers or for terminating this Agreement, the failure of any condition set forth in this Article VI to be satisfied if such failure was caused by such Party’s breach in any material respect of any provision of this Agreement.

ARTICLE VIIIVII

TERMINATION, AMENDMENT AND WAIVER

Section 8.17.1 Termination. Notwithstanding anything herein to the contrary, thisThis Agreement may be terminated and the MergerMergers may be abandoned at any time prior to the Effective Time, whether before or after MLP Unitholder Approval:the Parent Stockholder Approval or the Company Stockholder Approval has been obtained (with any termination by Parent or the Company also being an effective termination by the other Parent Parties or the other Company Parties, respectively):

(a) By theby mutual written consent of PNRParent and MLP in a written instrument.the Company;

(b) Byby either PNRParent or MLP, upon written notice to the other party, if:Company:

(i) if the Merger hasMergers shall not have been consummated on or before March 17, 2014May 20, 2021 (the “TerminationOutside Date”);provided,however, that the right to terminate this Agreement pursuant to this Section 8.1(b) 7.1(b)(i) shall not be available to a partyany Party whose failure to fulfill in any material obligationrespect any of its obligations under this Agreement or other material breach of this Agreement has been the primaryproximate cause of, or proximately resulted in, the failure of the MergerMergers to have beenbe consummated on or before such Terminationby the Outside Date;

(ii) if any court of competent jurisdiction or other Governmental Authority hasEntity shall have issued a statute,judgment, order, injunction, rule order,or decree, or regulation or taken any other action in each case permanently restraining, enjoining or otherwise prohibiting the consummationany of the Merger or making the Merger illegalTransactions, and such statute,judgment, order, injunction, rule, order, decree regulation or other action shall have become final and nonappealable, nonappealable; provided, that the terminating party is not thenParty seeking to terminate this Agreement pursuant to this Section 7.1(b)(ii) shall have used its reasonable best efforts to contest, appeal and remove such judgment, order, injunction, rule, decree, ruling or other action in material breach of accordance with Section 6.1; 5.5; or

(iii) there hasif the Company Stockholder Approval shall not have been obtained at the Company Stockholders Meeting duly convened therefor or at any adjournment or postponement thereof at which a material breachvote on the adoption of this Agreement was taken;

(iv) if the Parent Stockholder Approval shall not have been obtained at the Parent Stockholders Meeting duly convened therefor or at any material inaccuracy inadjournment or postponement thereof at which a vote on the approval of the Stock Issuance was taken; or

(v) if such other Party shall have breached or failed to perform any of theits representations, warranties, covenants or warrantiesagreements set forth in this Agreement on(other than with respect to a breach of Section 5.2, Section 5.3(c) (with respect to the partCompany) or Section 5.3(d) (with respect to Parent), as to which Section 7.1(c) (with respect to a breach or failure to perform by the Company) or Section 7.1(d) (with respect to a breach or failure to perform by Parent) will apply), or if any representation or warranty of such other Party shall have become untrue, which breach or failure to perform or to be true, either individually or in the aggregate, if occurring or continuing at the Effective Time (A) would result in the failure of any of the Other Parties, which breach isconditions set forth in Article VI and (B) cannot be or has not been cured withinby the earlier of (1) the Outside Date and (2) 30 days following receipt byafter the breaching partygiving of written notice to such other Party of such breach from the terminating party, or whichfailure (any such breach, by its nature, cannot be cured prior to the Termination Date, a “Terminable Breach”); provided in any such case that neither the terminating party nor any Relateda Party is then in material breach of any representation, warranty, covenant or other agreement contained herein;provided,however, that no party shall not have the right to terminate this Agreement pursuant to this Section 8.1(b)(iii) unless 7.1(b)(v) if such Party is then in Terminable Breach of any of its covenants or agreements set forth in this Agreement;

(c) by Parent, prior to, but not after, the breach of a representation or warranty, togethertime the Company Stockholder Approval is obtained, if (i) an Adverse Recommendation Change shall have occurred with all other such breaches, would entitlerespect to the party receiving such representation not to consummate the Merger under Section 7.4 (inCompany, (ii) in the case of an Acquisition Proposal structured as a breachtender offer or exchange offer, the Company shall, within 10 Business Days of representationthe tender or warrantyexchange offer having been commenced, fail to publicly recommend against such tender or exchange offer, (iii) upon a request to do so by Parent, the Company shall have failed to publicly reaffirm its recommendation of the Mergers within 10 Business Days after the date any Acquisition Proposal is first publicly announced, distributed or disseminated to Company Stockholders or (iv) the Company Board or a PNR Party)director or executive officer of the Company shall, or shall have caused the Company to, have breached or failed to perform any obligation set forth in Section 7.5 (in 5.2 or Section 5.3(c) in any material respect;

(d) by the Company, prior to, but not after, the time the Parent Stockholder Approval is obtained, if (i) an Adverse Recommendation Change shall have occurred with respect to Parent, (ii) in the case of an Acquisition Proposal structured as a breachtender offer or exchange offer, Parent shall, within 10 Business Days of representationthe tender or warrantyexchange offer having been commenced, fail to publicly recommend against such tender or exchange offer or (iii) upon a request to do so by an MLPthe Company, Parent shall have failed to publicly reaffirm its recommendation of the Stock Issuance within 10 Business Days after the date any Acquisition Proposal is first publicly announced, distributed or disseminated to Parent Stockholders or (iv) the Parent Board or a director or executive officer of Parent shall, or shall have caused Parent to, have breached or failed to perform any obligation set forth in Section 5.2 or Section 5.3(d) in any material respect; and

(e) by the Company, prior to, but not after, the time the Company Stockholder Approval is obtained, in order to enter into a definitive agreement with respect to a Superior Proposal; provided, however, that the Company shall have contemporaneously with such termination tendered payment to Parent of the Company Termination Fee pursuant to Section 7.3.

The Party desiring to terminate this Agreement pursuant to this Section 7.1 (other than pursuant to Section 7.1(a)) shall give notice of such termination to the other Party.

Section 7.2 Effect of Termination. In the event of termination of the Agreement, this Agreement shall immediately become void and have no effect, without any liability or obligation on the part of any Party (except as expressly provided for in Section 7.3), provided, that:

(a) the Confidentiality Agreement and the provisions of Sections 3.28 and 4.28 (Brokers), Section 5.13 (Public Announcements), this Section 7.2, Section 7.3 (Fees and Expenses), Section 8.2 (Notices), Section 8.5 (Entire Agreement), Section 8.6 (No Third Party Beneficiaries), Section 8.7 (Governing Law), Section 8.8 (Submission to Jurisdiction), Section 8.9 (Assignment; Successors), Section 8.10 (Specific Performance), Section 8.12 (Severability), Section 8.13 (No Other Parties to this Agreement), Section 8.14 (Waiver of Jury Trial) and Section 8.17 (No Presumption Against Drafting Party); shall survive the termination hereof; and

(iv) there has been(b) no such termination shall relieve any Party from any liability or damages resulting from a material breachWillful and Material Breach of any of theits covenants or agreements set forth in this Agreement on the part ofor Fraud, in which case any of the Other Parties, which breach has not been cured within 30 days following receipt by the breaching party of written notice of such breach from the terminating party, or which breach, by its

nature, cannot be cured prior to the Termination Date, provided in any such case that neither the terminating party nor any Relatednon-breaching Party is then in material breach of any representation, warranty, covenant or other agreement contained herein;provided,however, that no party shall have the right to terminate this Agreement pursuant to this Section 8.1(b)(iv) unless the breach of covenants or agreements, together with all other such breaches, would entitle the party receiving the benefit of such covenants or agreements not to consummate the Merger under Section 7.4 (in the case of a breach of covenants or agreements by a PNR Party) or Section 7.5 (in the case of a breach of covenants or agreements by an MLP Party); or

(v) MLP does not obtain the MLP Unitholder Approval at the MLP Meeting;provided, however, that the right to terminate this Agreement under this Section 8.1(b)(v) shall not be available to the terminating party where the failure to obtain the MLP Unitholder Approval shall have been caused by the action or failure to act of the terminating party and such action or failure to act constitutes a material breach by the terminating party of this Agreement or the Voting Agreement.

(c) By either PNR or MLP, upon written notice to the other party, in the event that an MLP Change in Recommendation has occurred.

Section 8.2Costs and Expenses.

(a) Whether or not the Merger is consummated, all costs and expenses incurred in connection with this Agreement and the Merger Transactions shall be paid by the party incurring such costs or expenses, except as provided in this Section 8.2.

(b) If this Agreement is terminated by PNR or MLP pursuant to Section 8.1(c), then MLP shall pay to PNR the Expenses of PNR.

(c) If this Agreement is terminated by PNR pursuant to Sections Section 8.1(b)(iii) or Section 8.1(b)(iv), then MLP shall pay to PNR the Expenses of PNR.

(d) If this Agreement is terminated by MLP pursuant to Sections Section 8.1(b)(iii) or Section 8.1(b)(iv) , then PNR shall pay to MLP the Expenses of MLP.

(e) Any payment of the Expenses shall be made by wire transfer of immediately available funds to an account designated by PNR or an account designated by MLP, as applicable, within one Business Day following the event that triggered the obligation to make such payment. The parties acknowledge that the agreements contained in this Section 8.2 are an integral part of the Merger Transactions, and that, without these agreements, none of the parties would enter into this Agreement.

(f) As used in this agreement, “Expenses” includes all reasonable out-of-pocket expenses (including all fees and expenses of counsel, accountants, investment bankers, experts and consultants to a party hereto and its Affiliates) incurred by a party or on its behalf in connection with or related to the authorization, preparation, negotiation, execution and performance of this Agreement and the Merger Transactions, including the preparation, printing, filing and mailing of the Proxy Statement/Prospectus and the Registration Statement and the solicitation of the MLP Unitholder Approval, and all other matters, including costs and expenses of litigation, related to the Merger Transactions;provided,however, that the amount of Expenses payable by one party to another under this Section 8.2 shall not exceed $1.5 million. The Expenses relating to the preparation, printing, filing and mailing of the Proxy Statement/Prospectus and the Registration Statement and the solicitation of the MLP Unitholder Approval shall be paid 50% by PNR and 50% by MLP.

(g) This Section 8.2 shall survive any termination of this Agreement.

Section 8.3Effect of Termination. In the event of the termination of this Agreement as provided in Section 8.1, written notice thereof shall forthwith be given by the terminating party to the other parties specifying

the provision of this Agreement pursuant to which such termination is made, and, except as provided in this Section 8.3, this Agreement (other than Section 6.5(b), Section 8.2 and Article IX) shall forthwith become null and void after the expiration of any applicable period following such notice. In the event of such termination, there shall be no liability on the part of any party hereto, except as set forth in Section 8.2 of this Agreement and except with respect to the requirement to comply with the Transaction Confidentiality Agreement; provided, however, that nothing herein shall relieve any party from any liability or obligation with respect to fraud or the willful and material breach of a covenant or agreement contained herein. In the case of fraud or willful and material breach of a covenant or agreement contained herein, then PNR or MLP, as the case may be, shall be entitled to all rights and remedies available at law or in equity. For purposes of this Agreement, the term willfulWillful and material breachMaterial Breach” means a deliberate act or failure to act, which act or failure to act constitutes in and of itself a material breach of this Agreement, thatregardless of whether breaching this Agreement was the breaching party is aware wouldconscious object of the act or would reasonably be expectedfailure to breach its obligations under this Agreement.

ARTICLE IX

MISCELLANEOUSact.

Section 9.1Waiver; Amendment; Approvals7.3 Fees and ConsentsExpenses.

(a) SubjectExcept as otherwise provided in this Section 7.3, all fees and expenses incurred in connection with this Agreement and the Transactions shall be paid by the Party incurring such fees or expenses, whether or not the Mergers are consummated.

(b) In the event that:

(i) (A) after the date of this Agreement, an Acquisition Proposal (whether or not conditional) (1) is made directly to compliance with applicable Law,the Company Stockholders or is otherwise publicly disclosed and not withdrawn at least seven Business Days prior to the Closing,Company Stockholders Meeting or (2) is otherwise communicated to senior management of the Company or the Company Board prior to the termination hereof, (B) this Agreement is terminated by the Company or Parent pursuant to Section 7.1(b)(i) or, but only in the case of sub-clause (1) of the foregoing clause (A), Section 7.1(b)(iii) or by Parent pursuant to Section 7.1(b)(v) with respect to a Terminable Breach by the Company, and (C) within 12 months after the date of such termination, the Company enters into an agreement in respect of any provisionAcquisition Proposal or recommends or submits an Acquisition Proposal to its stockholders for adoption, or a transaction in respect of any Acquisition Proposal with respect to the Company is consummated, which, in each case, need not be the same Acquisition Proposal that was made, disclosed or communicated prior to termination hereof (provided, that for purposes of this clause (C), each reference to “20% or more” in the definition of “Acquisition Proposal” shall be deemed to be a reference to “50% or more”);

(ii) this Agreement is terminated by Parent pursuant to Section 7.1(c); or

(iii) this Agreement is terminated by the Company pursuant to Section 7.1(e):

then, in either such event, the Company shall pay to Parent the Company Termination Fee, less the amount of Parent Expenses previously paid to Parent (if any) pursuant to Section 7.3(d), it being understood that in no event shall the Company be required to pay the Company Termination Fee on more than one occasion; provided, that the payment by the Company of the Company Termination Fee pursuant to this Section 7.3(b) shall not relieve the Company from any liability or damage resulting from a Willful and Material Breach of any of its covenants or agreements set forth in this Agreement or Fraud.

(c) In the event that:

(i) (A) after the date of this Agreement, an Acquisition Proposal (whether or not conditional) (1) is made directly to the Parent Stockholders or is otherwise publicly disclosed and not withdrawn at least seven Business Days prior to the Parent Stockholders Meeting or (2) is otherwise communicated to senior management of Parent or the Parent Board prior to the termination hereof, (B) this Agreement is terminated by the Company or Parent pursuant to Section 7.1(b)(i) or, but only in the case of sub-clause (1) in the foregoing clause (A), Section 7.1(b)(iv) or by the Company pursuant to Section 7.1(b)(v) with respect to a Terminable Breach by Parent, and (C) within 12 months after the date of such termination, Parent enters into an agreement in respect of any Acquisition Proposal or recommends or submits an Acquisition Proposal to its stockholders for adoption, or a transaction in respect of any Acquisition Proposal with respect to Parent is consummated, which, in each case, need not be the same Acquisition Proposal that was made, disclosed or communicated prior to termination hereof (provided, that for purposes of this clause (C), each reference to “20% or more” in the definition of “Acquisition Proposal” shall be deemed to be a reference to “50% or more”); or

(ii) this Agreement is terminated by the Company pursuant to Section 7.1(d);

then, in either such event, Parent shall pay to the Company the Parent Termination Fee, less the amount of Company Expenses previously paid to the Company (if any) pursuant to Section 7.3(d), it being understood that in no event shall Parent be required to pay the Parent Termination Fee on more than one occasion; provided, that the payment by Parent of the Parent Termination Fee pursuant to this Section 7.3(c) shall not relieve Parent from any liability or damage resulting from a Willful and Material Breach of any of its covenants or agreements set forth in this Agreement or Fraud.

(d) In the event that this Agreement is terminated by Parent or the Company:

(i) pursuant to Section 7.1(b)(iii) under circumstances in which the Company Termination Fee is not then payable pursuant to Section 7.3(b), then the Company shall pay Parent an amount in cash equal to $45,000,000 (the “Parent Expenses”) in respect of the costs and expenses of the Parent Parties in connection with or related to the authorization, preparation, investigation, negotiation, execution and performance of this Agreement and the Transactions; provided, that the payment by the Company of the Parent Expenses pursuant to this Section 7.3(d)(i) shall not relieve the Company (x) of any subsequent obligation to pay the Company Termination Fee pursuant to Section 7.3(b)except to the extent indicated in such Section 7.1,or (y) from any liability or damage resulting from a Willful and Material Breach of any of its covenants or agreements set forth in this Agreement or Fraud; or

(ii) pursuant to Section 7.1(b)(iv) under circumstances in which the Parent Termination Fee is not then payable pursuant to Section 7.3(c), then Parent shall pay the Company an amount in cash equal to $90,000,000 (the “Company Expenses”) in respect of the costs and expenses of the Company Parties in connection with or related to the authorization, preparation, investigation, negotiation, execution and performance of this Agreement and the Transactions,; provided, that the payment by Parent of the Company Expenses pursuant to this Section 7.3(d)(ii) shall not relieve Parent (x) of any subsequent obligation to pay the Parent Termination Fee pursuant to Section 7.3(c) except to the extent indicated in such Section or (y) from any liability or damage resulting from a Willful and Material Breach of any of its covenants or agreements set forth in this Agreement or Fraud.

(e) Payment of the Company Termination Fee or the Parent Termination Fee shall be made by wire transfer of same-day funds to the accounts designated by the Parties that are the recipients thereof (i) concurrently with the termination of this Agreement in the case of a Company Termination Fee payable pursuant to Section 7.3(b)(iii), (ii) on the earliest of the execution of a definitive agreement with respect to, submission to the stockholders of, or the consummation of, any transaction contemplated by an Acquisition Proposal, as applicable, in the case of a Company Termination Fee payable pursuant to Section 7.3(b)(i) or a Parent Termination Fee payable pursuant to Section 7.3(c)(i), or (iii) as promptly as reasonably practicable after termination (and, in any event, within two Business Days thereof), in the case of a Company Termination Fee

payable pursuant to Section 7.3(b)(ii) or a Parent Termination Fee payable pursuant to Section 7.3(c)(ii). Payment of (A) the Parent Expenses shall be made by wire transfer of same-day funds to the accounts designated by Parent within two Business Days after the Company is notified of the amounts thereof by Parent; and (B) the Company Expenses shall be made by wire transfer of same-day funds to the accounts designated by the Company within two Business Days after Parent is notified of the amounts thereof by the Company.

(f) Each Party acknowledges that the agreements contained in this Section 7.3 are an integral part of the Transactions, and that, without these agreements, the other Parties would not enter into this Agreement. Accordingly, if the applicable Party fails to promptly pay any amounts due pursuant to this Section 7.3, and, in order to obtain such payment, one or more other Parties commences a suit that results in a judgment against such Party for the amounts set forth in this Section 7.3, such Party shall pay to the other Parties their respective costs and expenses (including reasonable attorneys’ fees and expenses) in connection with such suit, together with interest on the amounts due pursuant to this Section 7.3 from the date such payment was required to be made until the date of payment at the prime lending rate as published in The Wall Street Journal in effect on the date such payment was required to be made.

Section 7.4 Amendment or Supplement. This Agreement may be (i) waived in writingamended, modified or supplemented by the party benefitedParties by the provision,action taken or (ii) amendedauthorized by their respective Boards of Directors or modifiedBoards of Managers, as applicable, at any time prior to the Effective Time, whether before or after the MLP UnitholderParent Stockholder Approval by an agreement in writing betweenor the parties hereto; Company Stockholder Approval has been obtained; provided, however, that after the MLP UnitholderParent Stockholder Approval or the Company Stockholder Approval has been obtained, no amendment shall be made that pursuant to applicable Law requires further approval or adoption by the natureParent Stockholders or amountthe Company Stockholders, respectively, without such further approval or adoption. This Agreement may not be amended, modified or supplemented in any manner, whether by course of the Merger Considerationconduct or that resultsotherwise, except by an instrument in a material adverse effect on the MLP Unaffiliated Unitholders without MLP Unitholder Approval (the MLP GP being hereby authorized to approve any otherwriting specifically designated as an amendment hereto, signed on behalf of MLP without any other approvaleach of the MLP Unitholders);Parties in interest at the time of the amendment.

Section 7.5 Extension of Time; Waiver. At any time prior to the Effective Time, either Parent or the Company may, by action taken or authorized by their respective Boards of Directors, to the extent permitted by applicable Law, (a) extend the time for the performance of any of the obligations or acts of the other Party, (b) waive any inaccuracies in the representations and provided, further, in addition to anywarranties of the other approvals required by the parties’ constituent documents or under this Agreement, the foregoing waivers, amendments or modifications in clauses (i) and (ii) are approved by the MLP GP Conflicts Committee.

(b) Unless otherwise expresslyParty set forth in this Agreement whenever a determination, decision,or any document delivered pursuant hereto or (c) subject to applicable Law, waive compliance with any of the agreements or conditions of the other Party contained herein, in each case inclusive of the other Parent Parties in the event of an extension or waiver with respect to Parent and the other Company Parties in the event of an extension or waiver with respect to the Company; provided, however, that after the Parent Stockholder Approval or the Company Stockholder Approval has been obtained, no waiver may be made that pursuant to applicable Law requires further approval or consentadoption by the Parent Stockholders or the Company Stockholders, respectively, without such further approval or adoption. Any agreement on the part of MLPa Party to any such waiver shall be valid only if set forth in a written instrument executed and delivered by a duly authorized officer on behalf of such Party. No failure or MLP GP is requireddelay of any Party in exercising any right or remedy hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any such right or power, or any abandonment or discontinuance of steps to enforce such right or power, or any course of conduct, preclude any other or further exercise thereof or the exercise of any other right or power. The rights and remedies of the Parties hereunder are cumulative and are not exclusive of any rights or remedies which they would otherwise have hereunder.

ARTICLE VIII

GENERAL PROVISIONS

Section 8.1 Nonsurvival of Representations and Warranties. None of the representations, warranties, covenants or agreements in this Agreement or in any instrument delivered pursuant to this Agreement such determination, decision, approval or consent must be authorized byshall survive the MLP GP Conflicts Committee and shall not require any approval of the MLP Unitholders or the MLP GP Board.

Section 9.2Counterparts. This Agreement may be executed in any number of counterparts, each of which shall be an original, and all of which, when taken together, shall constitute one Agreement. Delivery of an executed signature page of this Agreement by facsimile or other customary means of electronic transmission (e.g., “pdf”) shall be effective as delivery of a manually executed counterpart hereof.

Section 9.3Governing Law. This Agreement shall be governed by, and interpreted in accordance with, the Laws of the State of Delaware (except to the extent that mandatory provisions of federal law govern), without giving effect to any choice or conflict of law provision or rule (whether of the State of Delaware or any other jurisdiction) that would cause the application of laws of any jurisdictionSecond Company Merger Effective Time, other than those covenants or agreements of the State of Delaware.Parties that

by their terms apply, or are to be performed in whole or in part, after the Second Company Merger Effective Time.

Section 9.4Confidentiality. Each of the parties hereto shall, and shall use its commercially reasonable efforts to cause its Representatives to, maintain the confidentiality of all information provided in connection herewith to the extent required by, and subject to the limitations of, Section 6.5(b).

Section 9.58.2 Notices. All notices requests, demands and other communications required or permitted to be given or made hereunder to a party shall be in writing and shall be deemed to have been duly given (a) on the date of delivery if delivered personally, delivered, faxed (withor if by e-mail, upon written confirmation of receipt)receipt by e-mail or mailedotherwise; provided, that each notice Party shall use reasonable best efforts to confirm receipt of any such email correspondence promptly upon receipt of such request, (b) on the first Business Day following the date of dispatch if delivered utilizing a next-day service by a recognized next-day courier or (c) on the earlier of confirmed receipt or the fifth Business Day following the date of mailing if delivered by registered or certified mail, (returnreturn receipt requested)

requested, postage prepaid. All notices hereunder shall be delivered to such party at its addressthe addresses set forth below, or pursuant to such other addressinstructions as may be designated in writing by the Party to receive such party may specify by noticenotice:

(i) if to any Parent Party, the parties hereto.

If to PNR, PNR USA,Surviving Corporation, the Surviving Company or MergerCothe Opco Surviving Company, to:

Pioneer Natural Resources Company

5205 N. O’Connor Blvd., Suite 200777 Hidden Ridge

Irving, Texas 75039-374675038

Attention: Mark Berg, Executive Vice President and General CounselH. Kleinman

Fax: (972) 969-3552E-mail: mark.kleinman@pxd.com

With copies towith a copy (which shall not constitute notice): to:

Gibson, Dunn & Crutcher LLP

2001 Ross Avenue, Suite 2100

Dallas, Texas 75201

Attention: Jeffrey A. Chapman; Tull R. Florey

E-mail: jchapman@gibsondunn.com; tflorey@gibsondunn.com

(ii) if to either Company Party, to:

Parsley Energy, Inc.

303 Colorado Street, Suite 3000

Austin, Texas 78701

Attention: General Counsel

E-mail: CRoberts@parsleyenergy.com

with a copy (which shall not constitute notice) to:

Vinson & Elkins LLP

2001 Ross Avenue,1001 Fannin, Suite 3700

Dallas, Texas 75201-2975

Attention: Michael D. Wortley

Fax: (214) 999-7732

If to MLP, MLP GP or MLP GP Conflicts Committee, to:

Pioneer Natural Resources GP LLC

5205 N. O’Connor Blvd., Suite 200

Irving, Texas 75039-3746

Attn: Arthur L. Smith, Chairman of the Conflicts Committee

Fax: (713) 961-3027

With copies to (which shall not constitute notice):

Andrews Kurth LLP

600 Travis, Suite 42002500

Houston, Texas 77002

Attention: G. Michael O’LearyDouglas E. McWilliams; Lande A. Spottswood

Fax: 713-238-7130E-mail: dmcwilliams@velaw.com; lspottswood@velaw.com

NoticesSection 8.3 Certain Definitions. For purposes of this Agreement:

(a) “Affiliate” of any Person means any other Person that directly or indirectly, through one or more intermediaries, controls, is controlled by, or is under common control with, such first Person.

(b) “Business Day” means any day other than a Saturday, a Sunday or a day on which banks in New York, New York are authorized or required by applicable Law to be closed.

(c) “Company Award Agreement” means any award agreement or other written agreement between the Company and a Company Stock Award holder that governs the terms and conditions of a Company Stock Award held by such Company Stock Award holder.

(d) “Company Material Adverse Effect” means a Material Adverse Effect with respect to the Company.

(e) “Company PRSU Award” means each restricted stock unit that is (i) subject in whole or in part to performance-based vesting and (ii) payable in shares of Company Class A Common Stock or the value of which is determined with reference to the value of shares of Company Class A Common Stock.

(f) “Company Restricted Stock Award” means each restricted share of Company Class A Common Stock that is subject to vesting requirements.

(g) “Company RSU Award” means each restricted stock unit that is (i) subject solely to service-based vesting and (ii) payable in shares of Company Class A Common Stock or the value of which is determined with reference to the value of shares of Company Class A Common Stock.

(h) “Company Termination Fee” means a fee equal to $135,000,000.

(i) “Confidentiality Agreement” means that certain Confidentiality Agreement, dated as of June 19, 2020, by and between Parent and the Company, as amended or supplemented from time to time.

(j) “control” (including the terms “controlled,” “controlled by” and “under common control with”) means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities, by contract or otherwise.

(k) “Controlled Group” means any organization that is a member of a controlled, affiliated or otherwise related group of entities within the meaning of Code Sections 414(b), (c), (m) or (o).

(l) “COPAS” means the accounting standards promulgated by the Council of Petroleum Accountants Society.

(m) “Derivative Transaction” means any swap transaction, option, warrant, forward purchase or sale transaction, futures transaction, cap transaction, floor transaction or collar transaction relating to one or more currencies, commodities, bonds, equity securities, loans, interest rates, catastrophe events, weather-related events, credit-related events or conditions or any indexes, or any other similar transaction (including any put, call, or other option with respect to any of these transactions) or combination of any of these transactions, including collateralized mortgage obligations or other similar instruments or any debt or equity instruments evidencing or embedding any such types of transactions, and any related credit support, collateral or other similar arrangements related to such transactions.

(n) “EBITDA” means, with respect to any Person and its Subsidiaries, the sum of (i) consolidated net income, determined in accordance with GAAP, plus (ii) without duplication and to the extent deducted in determining such consolidated net income, the sum of (A) consolidated interest expense, plus (B) consolidated income tax expense, plus (iii) all amounts attributed to depletion, depreciation or amortization, in each case of such Person and its Subsidiaries.

(o) “Fraud” means actual fraud by a Person, which involves a knowing and intentional or willful misrepresentation or omission of a material fact with respect to the making of (i) any representation or warranty set forth in Article III or in the corresponding representations or warranties set forth in the Company’s officers’ certificate to be delivered pursuant to Section 6.2(c) or (ii) Article IV or in the corresponding representations or warranties set forth in the Parent’s officers’ certificate to be delivered pursuant to Section 6.3(c) and does not include any fraud claim based on negligent misrepresentation, recklessness or any equitable fraud or promissory fraud.

(p) “Hydrocarbons” means crude oil, natural gas, condensate, drip gas and natural gas liquids, coalbed gas, ethane, propane, iso-butane, nor-butane, gasoline, scrubber liquids and other liquid or gaseous hydrocarbons or other substances (including minerals or gases), or any combination thereof, produced or associated therewith.

(q) “Indebtedness” means, with respect to any Person, (i) all obligations of such Person for borrowed money, (ii) all obligations of such Person evidenced by bonds, debentures, notes or similar instruments, (iii) all obligations of such Person under a lease to the extent such obligations are required to be classified and accounted

for as a capital lease on a balance sheet of such Person under GAAP, (iv) all obligations of such Person under installment sale contracts, and (v) all indebtedness of others described in clauses (i) through (iv) above guaranteed by such Person; provided, however, Indebtedness does not include accounts payable to trade creditors, or accrued expenses arising in the ordinary course of business consistent with past practice, in each case, that are not yet due and payable, or are being disputed in good faith, and the endorsement of negotiable instruments for collection in the ordinary course of business.

(r) “Intellectual Property” means any and all proprietary, industrial and intellectual property rights, under the law of any jurisdiction or rights under international treaties, both statutory and common law rights, including: (i) utility models, supplementary protection certificates, patents and applications for same, and extensions, divisions, continuations, continuations-in-part, reexaminations, and reissues thereof; (ii) trademarks, service marks, trade names, slogans, domain names, logos, trade dress and other identifiers of source, and registrations and applications for registrations thereof (including all goodwill associated with the foregoing); (iii) copyrights, moral rights, database rights, other rights in works of authorship and registrations and applications for registration of the foregoing; and (iv) trade secrets, know-how, and rights in confidential information, including designs, formulations, concepts, compilations of information, methods, techniques, procedures, and processes, whether or not patentable.

(s) “knowledge” of any Party means (i) with respect to Parent, the actual knowledge of Mark Berg, Rich Dealy, Mark Kleinman and Margaret Montemayor, and (ii) with respect to the Company, the actual knowledge of Matt Gallagher, Ryan Dalton, David Dell’Osso, Stephanie Reed and Colin Roberts.

(t) “Material Adverse Effect” means, with respect to any Person, any event, change, circumstance, occurrence or effect that (i) has, or would have, a material adverse effect on the business, financial condition or results of operations of such Person and its Subsidiaries, taken as a whole, or (ii) would reasonably be expected to prevent, materially delay or materially impair the ability of such Person to consummate the Transactions; provided, however, in the case of clause (i) only, no event, change, circumstance, occurrence or effect to the extent directly or indirectly resulting from, arising out of, attributable to, or related to any of the following shall be deemed to be or constitute a “Material Adverse Effect” or shall be taken into account when determining whether a “Material Adverse Effect” has occurred or would occur: (A) changes in conditions or developments generally applicable to the oil and gas exploration, development or production industry in the United States or any area or areas where the assets of such Person or any of its Subsidiaries are located, including any increase in operating costs or capital expenses or any reduction in drilling activity or production, or changes in Law or regulation affecting such industry; (B) general economic or political conditions or securities, credit, financial or other capital markets conditions (or changes in such conditions), including changes generally in supply, demand, price levels, interest rates, changes in the price of any commodity (including Hydrocarbons) or general market prices, changes in the cost of fuel, sand or proppants and changes in exchange rates, in each case in the United States or any foreign jurisdiction; (C) any failure, in and of itself, by such Person to meet any internal or published projections, forecasts, estimates or predictions in respect of revenues, earnings, production or other financial or operating metrics for any period (it being understood that the events, changes, circumstances, occurrences or effects giving rise to or contributing to such failure may be deemed to constitute or be taken into account in determining whether there has occurred or would occur a Material Adverse Effect); (D) the execution and delivery of this Agreement; (E) the public announcement of the Transactions, including the impact thereof on the relationships, contractual or otherwise, of such Person or any of its Subsidiaries with employees, labor unions, customers, suppliers or partners; (F) any change, in and of itself, in the market price or trading volume of such Person’s securities (it being understood that the events, changes, circumstances, occurrences or effects giving rise to or contributing to such change may be deemed to constitute, or be taken into account in determining whether there has been or will be, a Material Adverse Effect); (G) any change in applicable Law, COPAS or GAAP (or authoritative interpretation thereof); (H) geopolitical conditions (or changes in such conditions), the outbreak or escalation of hostilities, any acts of war, sabotage or terrorism, or any escalation or worsening of any such acts of war, sabotage or terrorism; (I) any epidemic, pandemic, disease outbreak (including the COVID-19 virus) or other public health crisis or public health event, or the worsening of any of the foregoing; (J) any disruption in the purchase or transportation of crude oil or natural gas produced or

otherwise sold by such Person or its Subsidiaries as a result of any shutdown, interruption or declaration of force majeure by any pipeline operator or other purchaser of such products; (K) natural declines in well performance or reclassification or recalculation of reserves in the ordinary course of business; (L) seasonal reductions in revenues and/or earnings of such Person or any of its Subsidiaries in the ordinary course of their respective businesses; (M) any actions taken or omitted to be taken by a Party at the written direction of the other Parties (for the avoidance of doubt any action by, or omission of, a Party for which such Party sought or requested, and the other Parties provided, consent shall not be deemed to be “at the written direction of” such Party); or (N) compliance with the terms of, or the taking of any action expressly required by, this Agreement (except for any obligation under this Agreement to operate in the ordinary course of business (or similar obligation) pursuant to Section 5.1), except to the extent any such event, change, circumstance, occurrence or effect directly or indirectly resulting from, arising out of, attributable to or related to any of the matters described in clauses (A), (B), (G), (H) and (I), has a disproportionate effect on such Person and its Subsidiaries, taken as a whole, relative to other similarly situated Persons in the oil and gas exploration, development and production industry in the geographic areas in which such Person and any of its Subsidiaries operate (in which case, such event, change, circumstance, occurrence or effect (if any) shall be taken into account when determining whether a “Material Adverse Effect” has occurred or would occur solely to the extent it is disproportionate).

(u) “Oil and Gas Leases” means all Hydrocarbon leases, subleases, licenses or other occupancy or similar agreements under which a Person acquires or obtains operating rights in and to Hydrocarbons or any other real property that is material to the operation of such Person’s business.

(v) “Oil and Gas Properties” means all interests in and rights with respect to (i) material oil, gas, mineral, and similar properties of any kind and nature, including working, leasehold and mineral interests and operating rights and royalties, overriding royalties, production payments, net profit interests and other non-working interests and non-operating interests (including all Oil and Gas Leases, operating agreements, unitization and pooling agreements and orders, division orders, transfer orders, mineral deeds, royalty deeds, and in each case, interests thereunder), surface interests, fee interests, reversionary interests, reservations and concessions and (ii) all Wells located on or producing from any of the Oil and Gas Properties described in clause (i) above.

(w) “Parent Convertible Notes” means the 0.250% Convertible Senior Notes due 2025 issued by Parent pursuant to the Indenture, dated as of May 14, 2020, between Parent and Wells Fargo Bank, National Association, as trustee.

(x) “Parent Material Adverse Effect” means a Material Adverse Effect with respect to Parent.

(y) “Parent PRSU Award” means each restricted stock unit that is (i) subject in whole or in part to performance-based vesting and (ii) payable in shares of Parent Common Stock or the value of which is determined with reference to the value of shares of Parent Common Stock.

(z) “Parent Restricted Stock Award” means each restricted share of Parent Common Stock that is subject to vesting requirements.

(aa) “Parent RSU Award” means each restricted stock unit that is (i) subject solely to service-based vesting and (ii) payable in shares of Parent Common Stock or the value of which is determined with reference to the value of shares of Parent Common Stock.

(bb) “Parent Stock Option” means an option to purchase shares of Parent Common Stock.

(cc) “Parent Termination Fee” means a fee equal to $270,000,000.

(dd) “Permitted Lien” means (i) to the extent not applicable to the Transactions or otherwise waived prior to the Effective Time, preferential purchase rights, rights of first refusal, purchase options and similar rights granted pursuant to any Contracts or Oil and Gas Leases, including joint operating agreements, joint ownership agreements, stockholders agreements, organic documents and other similar agreements and documents; (ii) contractual or statutory mechanic’s, materialmen’s, warehouseman’s, journeyman’s and carrier’s liens and other similar Liens arising in the ordinary course of business for amounts not yet delinquent and Liens for Taxes

or assessments or other governmental charges that are not yet delinquent or, in all instances, if delinquent, that are being contested in good faith in the ordinary course of business and for which adequate reserves have been received (a)established in accordance with GAAP by the applicable party; (iii) Production Burdens payable to third parties that are deducted in the calculation of discounted present value in the Company Reserve Report Letter or the Parent Reserve Report Letter, as applicable; (iv) Liens arising in the ordinary course of business under operating agreements, joint venture agreements, partnership agreements, Oil and Gas Leases, farm-out agreements, division orders, contracts for the sale, purchase, transportation, processing or exchange of oil, gas or other Hydrocarbons, unitization and pooling declarations and agreements, area of mutual interest agreements, development agreements, joint ownership arrangements and other agreements that are customary in the oil and gas business; provided, however, that, in each case, such Lien (A) secures obligations that are not Indebtedness or a deferred purchase price and are not delinquent and (B) would not have and would not reasonably be expected to have a Material Adverse Effect; (v) such Liens as Parent (in the case of Liens with respect to properties or assets of the Company or its Subsidiaries) or the Company (in the case of Liens with respect to properties or assets of Parent or its Subsidiaries), as applicable, may have expressly waived in writing; (vi) all easements, zoning restrictions, Rights-of-Way, servitudes, permits, surface leases and other similar rights in respect of surface operations, and easements for pipelines, streets, alleys, highways, telephone lines, power lines, railways and other easements and Rights-of-Way, on, over or in respect of any of the properties of the Company or Parent, as applicable, or any of their respective Subsidiaries, that are customarily granted in the oil and gas industry and do not materially interfere with the operation, value or use of the property or asset affected; (vii) any Lien discharged at or prior to the Effective Time, including Liens securing any Indebtedness that will be paid off in connection with the Closing; (viii) Liens imposed or promulgated by applicable Law or any Governmental Entity with respect to real property, including zoning, building or similar restrictions; and (ix) Liens, exceptions, defects or irregularities in title, easements, imperfections of title, claims, charges, security interests, Rights-of-Way, covenants, restrictions and other similar matters that (A) would be accepted by a reasonably prudent purchaser of oil and gas interests, (B) would not reduce the net revenue interest of the applicable Party, in the aggregate, in the applicable Oil and Gas Properties below that set forth in the Company Reserve Report Letter or the Parent Reserve Report Letter, as applicable, and (C) would not increase the working interest of the applicable Party, in the aggregate, in the applicable Oil and Gas Properties above that set forth in the Company Reserve Report Letter or the Parent Reserve Report Letter, as applicable.

(ee) “Person” means an individual, corporation, partnership, limited liability company, association, trust or other entity or organization, including any Governmental Entity.

(ff) “Production Burdens” means any royalties (including lessor’s royalties), overriding royalties, production payments, net profit interests or other burdens upon, measured by or payable out of Hydrocarbon production.

(gg) “Related Party” means, with respect to any Person, any present or former director, executive officer, stockholder, partner, member, employee or Affiliate of such Person or any of its Subsidiaries, or any of such Person’s Affiliates or immediate family members.

(hh) “Representative” means, with respect to any Party, any director, officer, employee, investment banker, financial advisor, attorney, accountant or other advisor, agent or representative of such Party or any of its Subsidiaries.

(ii) “Subsidiary” means, with respect to any Person, any other Person, whether incorporated or unincorporated, of which such Person (either alone or through or together with any other Subsidiary), owns, directly or indirectly, (i) more than 50% of the stock or other equity interests, the holders of which are generally entitled to vote for the election of the board of directors or other governing body of such corporation or other legal entity, (ii) a general partner interest or (iii) a managing member interest.

(jj) “Tax Return” means any return, report, claim for refund, information return, statement or other similar document filed or required to be filed with any Governmental Entity in connection with the determination, assessment, collection or administration of any Tax, including any schedule, attachment or supplement thereto, and including any amendment thereof.

(kk) “Taxes” means any and all taxes, duties, levies or other similar governmental assessments, charges and fees in the nature of a tax, including income, estimated, business, occupation, corporate, capital, gross receipts, transfer, stamp, registration, employment, payroll, unemployment, occupancy, license, severance, capital, production, ad valorem, excise, windfall profits, real property, personal property, sales, use, turnover, value added and franchise taxes, deductions, withholdings, and custom duties, imposed by any Governmental Entity, whether disputed or not, together with all interest, penalties, and additions to tax imposed with respect thereto.

(ll) “Wells” means all oil or gas wells, whether producing, operating, shut-in or temporarily abandoned, located on an Oil and Gas Lease or any pooled, communitized or unitized acreage that includes all or a part of such Oil and Gas Lease or otherwise associated with an Oil and Gas Property of the applicable Person or any of its Subsidiaries, together with all oil, gas and mineral production from such well.

Section 8.4 Interpretation. When a reference is made in this Agreement to a Section, Article, Exhibit or Schedule, such reference shall be to a Section, Article, Exhibit or Schedule of this Agreement unless otherwise indicated. The words “this Section,” “this subsection” and words of similar import, refer only to the Sections or subsections hereof in which such words occur. The table of contents and headings contained in this Agreement or in any Exhibit or Schedule are for convenience of reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. All words used in this Agreement will be construed to be of such gender or number as the circumstances require. Any capitalized terms used in any Exhibit or Schedule but not otherwise defined therein shall have the meaning as defined in this Agreement. All Exhibits and Schedules annexed hereto or referred to herein are hereby incorporated in and made a part of this Agreement as if set forth herein. The word “including” and words of similar import when used in this Agreement will mean “including, without limitation,” unless otherwise specified. The words “hereof,” “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to the Agreement as a whole and not to any particular provision in this Agreement. The term “or” is not exclusive. The word “will” shall be construed to have the same meaning and effect as the word “shall.” The word “extent” in the phrase “to the extent” shall mean the degree to which a subject or other thing extends and such phrase shall not mean simply “if.” Each accounting term not otherwise defined in this Agreement shall have the meaning commonly applied to such term in accordance with GAAP. References to “days” mean calendar days; when calculating the period of time within which, or following which, any act is to be done or step taken pursuant to this Agreement, the date that is the reference day in calculating such period shall be excluded and if the last day of the period is a non-Business Day, the period in question shall end on the date of receiptnext Business Day or if (i) deliveredany action must be taken hereunder on or by handa day that is not a Business Day, then such action may be validly taken on or overnight courier service or (ii) upon receipt of an appropriate electronic answerback or confirmation when so delivered by fax (to such number specified above or another number or numbers as such Person may subsequently designate by notice given hereunder) or (b) on the date threenext day that is a Business Days after dispatch by certified or registered mail.Day.

Section 9.68.5 Entire Understanding; No Third-Party BeneficiariesAgreement. This Agreement (including the documents referred to or listed herein) representsExhibits hereto), the Company Disclosure Letter, the Parent Disclosure Letter, the TRA Amendment, the Voting Agreements and the Confidentiality Agreement constitute the entire understanding ofagreement, and supersede all prior written agreements, arrangements, communications and understandings and all prior and contemporaneous oral agreements, arrangements, communications and understandings among the parties heretoParties with referencerespect to the subject matter hereof and the Merger Transactions and supersedes any and all other oral or written agreements heretofore made. Except as contemplated by thereof.

Section 6.11, nothing8.6 No Third Party Beneficiaries.

(a) Nothing in this Agreement, expressedexpress or implied, is intended to or shall confer upon any person,Person other than the parties hereto orParties and their respective successors and permitted assigns any rights, remedies, obligationslegal or liabilitiesequitable right, benefit or remedy of any nature under or by reason of this Agreement.Agreement, except (i) as provided in Section 5.8 (which is intended for the benefit of, and shall be enforceable by, the Persons referred to therein and by their respective heirs and Representatives) and (ii) from and after the Closing and subject to the consummation of the Mergers, for the provisions of Article II with respect to the rights of the former holders of Company Class A Common Stock, Opco LLC Stapled Units, Company RSU Awards, Company PRSU Awards and Company Restricted Stock Awards to receive Merger Consideration, other shares of Parent Common Stock to be issued in the Mergers, and such other shares of Parent Common Stock to be reserved for issuance in connection with such Mergers after the Closing. Notwithstanding the foregoing, in the event of any Parent Party’s Willful and Material

Section 9.7Severability. Any provision

Breach of this Agreement which is invalid, illegal or unenforceable in any jurisdictionFraud, then the Company Stockholders, acting solely through the Company, shall as to that jurisdiction, be ineffective only to the extent of such invalidity, illegality or unenforceability, without affecting in any way the remaining provisions hereof in such jurisdiction or rendering that or any other provisionbeneficiaries of this Agreement invalid, illegaland, subject to the terms of this Agreement, shall be entitled to pursue any and all legally available remedies, including equitable relief, and to seek recovery of all losses, liabilities, damages, costs and expenses of every kind and nature, including reasonable attorneys’ fees; provided, however, that the rights granted pursuant to this sentence shall be enforceable only by the Company, on behalf of the Company Stockholders, in the Company’s sole discretion, it being understood and agreed such rights shall attach to such shares of Company Common Stock and subsequently trade and transfer therewith and, consequently, any damages, settlements, or unenforceableother amounts recovered or received by the Company with respect to such rights may, in the Company’s sole discretion, be (a) distributed, in whole or in part, by the Company to the stockholders of the Company of record as of any date determined by the Company or (b) retained by the Company for the use and benefit of the Company on behalf of the Company Stockholders in any manner the Company deems fit.

(b) The representations and warranties in this Agreement are the product of negotiations among the Parties hereto and are for the sole benefit of the Parties hereto. Any inaccuracies in such representations and warranties are subject to waiver by the Parties in accordance with Section 7.5 without notice or liability to any other jurisdiction.Person. In some instances, the representations and warranties in this Agreement may represent an allocation among the Parties hereto of risks associated with particular matters regardless of the knowledge of any of the Parties hereto. Consequently, Persons other than the Parties hereto may not rely upon the representations and warranties in this Agreement as characterizations of actual facts or circumstances as of the date of this Agreement or as of any other date.

Section 9.8Jurisdiction8.7 Governing Law. The parties hereto agree that, to the fullest extent permitted by law, any suit, actionThis Agreement and all disputes or proceeding seeking to enforce any provision of, or based on any mattercontroversies arising out of or in connection with,relating to this Agreement or the Merger Transactions shall be governed by, and construed in accordance with, the internal Laws of the State of Delaware, without regard to the Laws of any other jurisdiction that might be applied because of the conflicts of laws principles of the State of Delaware.

Section 8.8 Submission to Jurisdiction. Each of the Parties irrevocably agrees that any legal action or proceeding arising out of or relating to this Agreement brought by any Party or its Affiliates against any other Party or its Affiliates shall be brought and determined in the Court of Chancery of the State of Delaware, provided that if jurisdiction is not then available in the Court of Chancery of the State of Delaware, then any such legal action or proceeding may be brought in any federal court located in the State of Delaware or the Delaware Court of Chancery, and eachDelaware. Each of the partiesParties hereby irrevocably consentssubmits to the jurisdiction of such

the aforesaid courts (and of the appropriate appellate courts therefrom) infor itself and with respect to its property, generally and unconditionally, with regard to any such suit, action or proceeding arising out of or relating to this Agreement and the Transactions. Each of the Parties agrees not to commence any action, suit or proceeding relating thereto except in the courts described above in Delaware, other than actions in any court of competent jurisdiction to enforce any judgment, decree or award rendered by any such court in Delaware as described herein. Each of the Parties further agrees that notice as provided herein shall constitute sufficient service of process and the Parties further waive any argument that such service is insufficient. Each of the Parties hereby irrevocably and unconditionally waives, and agrees not to assert, by way of motion or as a defense, counterclaim or otherwise, in any action or proceeding arising out of or relating to this Agreement or the Transactions, (a) any claim that it is not personally subject to the fullest extent permitted by Law,jurisdiction of the courts in Delaware as described herein for any objectionreason, (b) that it may now or hereafter have to the laying of the venueits property is exempt or immune from jurisdiction of any such court or from any legal process commenced in such courts (whether through service of notice, attachment prior to judgment, attachment in aid of execution of judgment, execution of judgment or otherwise) and (c) that (i) the suit, action or proceeding in any such court or that anyis brought in an inconvenient forum, (ii) the venue of such suit, action or proceeding brought in any such court has been brought in an inconvenient forum,is improper or that(iii) this Agreement, or the subject matter hereof, may not be enforced in or by any such court. Process in any such suit, action or proceeding may be served on any party anywhere in the world, whether within or without the jurisdiction of any such court. Without limiting the foregoing, each party agrees that to the fullest extent permitted by law, service of process on such party as provided in Section 9.5 shall be deemed effective service of process on such party for matters between the parties hereto.courts.

Section 9.9Waiver of Jury Trial8.9 Assignment; Successors. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING BETWEEN THE PARTIES HERETO ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE MERGER TRANSACTIONS.

Section 9.10No Recourse. This Agreement may only be enforced against, and any claims or causes of action that may be based upon, arise out of or relate to Neither this Agreement nor any of the rights, interests or the negotiation, execution or performance ofobligations under this Agreement may only be made against,assigned or delegated, in whole or in part, by operation of Law or otherwise, by any Party without the entities that are expressly identified as parties hereto, and no past, present or future Affiliate, director, officer, employee, incorporator, member, manager, partner, stockholder, agent, attorney or representative of any party hereto shall have any liability for any obligations or liabilitiesprior written consent of the partiesother Parties, and any such assignment without such prior written consent shall be null and void. Subject to the preceding sentence, this Agreement or for any claim based on, in respectwill be binding upon, inure to the benefit of, orand be enforceable by, reason of, the transactions contemplated hereby.Parties and their respective successors and assigns.

Section 9.118.10 Specific Performance. The partiesParties agree that irreparable damage would occur if any provisionin the event that the Parties do not perform the provisions of this Agreement were not performed in accordance with its terms or otherwise breach such provisions. Accordingly, prior to any termination of this Agreement pursuant to Section 7.1, the terms hereofParties acknowledge and accordingly, the partiesagree that each Party shall to the fullest extent permitted by law, be entitled to an injunction, or injunctionsspecific performance and other equitable relief to prevent breaches of this Agreement and to enforce specifically the terms and provisions hereof in the Court of Chancery of the State of Delaware, provided, that if jurisdiction is not then available in the Court of Chancery of the State of Delaware, then in any federal court located in the State of Delaware, this being in addition to any other remedy to which such Party is entitled at law or in equity. Each Party accordingly agrees (a) the non-breaching Party will be entitled to injunctive and other equitable relief, without proof of actual damages; and (b) the alleged breaching Party will not raise any objections to the availability of the equitable remedy of specific performance to prevent or restrain breaches or threatened breaches of, or to enforce compliance with, the covenants and obligations of such Party under this Agreement and will not plead in defense thereto that there are adequate remedies at Law, all in accordance with the terms of this Section 8.10. Each Party further agrees that no other Party or any other Person shall be required to obtain, furnish or post any bond or similar instrument in connection with or as a condition to obtaining any remedy referred to in this Section 8.10, and each Party irrevocably waives any right it may have to require the obtaining, furnishing or posting of any such bond or similar instrument. If prior to the Outside Date, any Party hereto brings an action to enforce specifically the performance of the terms and provisions hereof in any federal court located in the State of Delaware or in the Delaware Court of Chancery, in addition toby any other remedy to which they are entitled at law or in equity.Party, the Outside Date shall automatically be extended by such other time period established by the court presiding over such action.

Section 9.12Survival8.11 Currency. All representations, warranties, agreements and covenants containedreferences to “dollars” or “$” or “US$” in this Agreement shall not surviverefer to United States dollars, which is the Closingcurrency used for all purposes in this Agreement.

Section 8.12 Severability. Whenever possible, each provision or the terminationportion of any provision of this Agreement shall be interpreted in such manner as to be effective and valid under applicable Law, but if any provision or portion of any provision of this Agreement is terminated priorheld to be invalid, illegal or unenforceable in any respect under any applicable Law or rule in any jurisdiction, such invalidity, illegality or unenforceability shall not affect any other provision or portion of any provision in such jurisdiction, and this Agreement shall be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable provision or portion of any provision had never been contained herein.

Section 8.13 No Other Parties to this Agreement. Each of the following is herein referred to as a “Company Affiliate”: (a) any direct or indirect holder of equity interests or securities in any Company Party (whether stockholders or otherwise), and (b) any director, officer, employee, Representative or agent of (i) any Company Party or (ii) any Person who controls any Company Party. No Company Affiliate not a Party to this Agreement shall have any liability or obligation to any Parent Party of any nature whatsoever in connection with or under this Agreement or the Transactions, and the Parent Parties hereby waive and release all claims of any such liability and obligation, other than for Fraud. Each of the following is herein referred to as a “Parent Affiliate”: (x) any direct or indirect holder of equity interests or securities in any Parent Party (whether stockholders or otherwise), and (y) any director, officer, employee, Representative or agent of (i) any Parent Party or (ii) any Person who controls any Parent Party. No Parent Affiliate not a Party to this Agreement shall have any liability or obligation to any Company Party of any nature whatsoever in connection with or under this Agreement or the Transactions, and the Company Parties hereby waive and release all claims of any such liability and obligation, other than for Fraud. Nothing in this Section 8.13 will relieve any Company Affiliate of any contractual obligations expressly set forth in the TRA Amendment or any Voting Agreement to which such Company Affiliate is a party.

Section 8.14 Waiver of Jury Trial. EACH OF THE PARTIES TO THIS AGREEMENT HEREBY IRREVOCABLY WAIVES ALL RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

Section 8.15 Counterparts. This Agreement may be executed in two or more counterparts, all of which shall be considered one and the same instrument and shall become effective when one or more counterparts have been signed by each of the Parties and delivered to the Closing; provided, however,other Party.

Section 8.16 Facsimile or .pdf Signature

. This Agreement may be executed by facsimile or .pdf signature and a facsimile or .pdf signature shall constitute an original for all purposes.

Section 8.17 No Presumption Against Drafting Party. Each Party acknowledges that if the Closing occurs, the agreements of the parties in Sections 3.1, 3.2, 3.3, 3.4, 6.11 and Article IX shall survive the Closing, and ifeach Party to this Agreement is terminated prior to the Closing, the agreements of the partieshas been represented by counsel in Sections 6.5(b), 8.2, 8.3, and Article IXconnection with this Agreement and the Transaction ConfidentialityTransactions. Accordingly, any rule of law or any legal decision that would require interpretation of any claimed ambiguities in this Agreement shall survive such termination.

against the drafting Party has no application and is expressly waived.

[The remainder of this page is intentionally left blank.]

IN WITNESS WHEREOF, the parties heretoParties have caused this Agreement to be executed in counterparts by their duly authorized officers, all as of the day and yeardate first written above.above by their respective officers thereunto duly authorized.

 

PIONEER NATURAL RESOURCES COMPANY
By: /s/ Mark S. Berg
Name:Mark S. Berg
Title:Executive Vice President and General Counsel
PIONEER NATURAL RESOURCES USA, INC.
By:/s/ Mark S. Berg
Name:Mark S. Berg
Title:Executive Vice President and General Counsel
PNR ACQUISITION COMPANY, LLC
By:/s/ Mark S. Berg
Name:Mark S. Berg
Title:Executive Vice President and General Counsel
PIONEER SOUTHWEST ENERGY PARTNERS L.P.
By:PIONEER NATURAL RESOURCES GP
LLC, its general partner
By:

/s/ Richard P. Dealy

Name: Richard P. Dealy
Title: Executive Vice President and
Chief Financial Officer
PIONEER NATURAL RESOURCES GP LLCPEARL FIRST MERGER SUB INC.
By: 

/s/ Richard P. Dealy

Name:Richard P. Dealy
Title:Vice President
PEARL SECOND MERGER SUB LLC

By: Pioneer Natural Resources Company, its sole member

By:

/s/ Richard P. Dealy

Name: Richard P. Dealy
Title: Executive Vice President and Chief Financial Officer
PEARL OPCO MERGER SUB LLC

By: Pioneer Natural Resources Company, its sole member

By:

/s/ Richard P. Dealy

Name:Richard P. Dealy
Title:Executive Vice President and Chief Financial Officer

[Signature Page to Merger Agreement]SIGNATURE PAGETO AGREEMENTAND PLANOF MERGER


PARSLEY ENERGY, INC.
By:

/s/ Matt Gallagher

Name: Matt Gallagher
Title:   President and Chief Executive Officer
PARSLEY ENERGY, LLC
By:

/s/ Matt Gallagher

Name: Matt Gallagher
Title:   President and Chief Executive Officer

SIGNATURE PAGETO AGREEMENTAND PLANOF MERGER


ANNEXAnnex B

August 9, 2013PERSONAL AND CONFIDENTIAL

Conflicts CommitteeOctober 20, 2020

Board of Directors

Pioneer Natural Resources GP LLCCompany

And,777 Hidden Ridge

Irving, TX 75038

Ladies and Gentlemen:

You have requested our opinion as noted below,

Independent Directorsto the fairness from a financial point of the Board of Directors ofview to Pioneer Natural Resources GP LLC

5205 N. O’Connor Blvd., Ste. 200

Irving, TX 75039

MembersCompany (the “Company”) of the Conflicts Committee:

We understand that Pioneer Southwestexchange ratio (the “Exchange Ratio”) of 0.1252 shares of common stock, par value $0.01 per share (the “Company Common Stock”), of the Company to be issued in exchange for each share of Class A common stock, par value $0.01 per share (the “Parsley Energy Partners L.P. (the “Partnership”Common Stock”), of Parsley Energy, Inc. (“Parsley Energy”) and Pioneer Natural Resources GPeach Unit of Parsley Energy, LLC (“Pioneer GP”Parsley LLC”) proposenot held by Parsley Energy, pursuant to enter into anthe Agreement and Plan of Merger, dated as of the date hereofOctober 20, 2020 (the “Merger Agreement”“Agreement”), by and among the Company, Pearl First Merger Sub Inc., a wholly owned subsidiary of the Company, Pearl Second Merger Sub LLC, a wholly owned subsidiary of the Company, Pearl Opco Merger Sub LLC, a wholly owned subsidiary of the Company, Parsley Energy and Parsley LLC.

Goldman Sachs & Co. LLC and its affiliates are engaged in advisory, underwriting and financing, principal investing, sales and trading, research, investment management and other financial and non-financial activities and services for various persons and entities. Goldman Sachs & Co. LLC and its affiliates and employees, and funds or other entities they manage or in which they invest or have other economic interests or with which they co-invest, may at any time purchase, sell, hold or vote long or short positions and investments in securities, derivatives, loans, commodities, currencies, credit default swaps and other financial instruments of the Company, Parsley Energy, Parsley LLC and any of their respective affiliates and third parties, including Quantum Energy Partners (“Quantum”), an affiliate of Q-Jagged Peak Energy Investment Partners, LLC, a significant stockholder of Parsley Energy, and its affiliates and portfolio companies, or any currency or commodity that may be involved in the transaction contemplated by the Agreement (the “Transaction”). We have acted as financial advisor to the Company in connection with, and have participated in certain of the negotiations leading to, the Transaction. We expect to receive fees for our services in connection with the Transaction, all of which are contingent upon consummation of the Transaction, and the Company has agreed to reimburse certain of our expenses arising, and indemnify us against certain liabilities that may arise, out of our engagement. We have provided certain financial advisory and/or underwriting services to the Company and/or its affiliates from time to time for which our Investment Banking Division has received, and may receive, compensation, including having acted as bookrunner with respect to the Company’s private placement of its 0.250% convertible senior notes due 2025 (aggregate principal amount $1,322,500,000) in May 2020 (the “Convertible Notes”); as a dealer manager in connection with the Company’s cash tender offers for its outstanding 3.45% senior notes due 2021, 3.95% senior notes due 2022, and 7.20% senior notes due 2028 (aggregate principal amount of up to $500,000,000) in May 2020; and as co-manager in connection with the Company’s public offering of its 1.90% Senior Notes due 2030 (aggregate principal amount $1,100,000,000) in August 2020. We may also in the future provide financial advisory and/or underwriting services to the Company, Parsley Energy and Quantum and their respective affiliates and, as applicable, portfolio companies for which our Investment Banking Division may receive compensation. Affiliates of Goldman Sachs & Co. LLC also may have co-invested with Quantum and its affiliates from time to time and may have invested in limited partnership units of affiliates of Quantum from time to time and may do so in the future.

We further note that concurrent with the issuance of the Convertible Notes, the Company entered into capped call transactions with respect to the Convertible Notes (collectively, the “Capped Call Transactions”)

Board of Directors

Pioneer Natural Resources Company (“PXD”

October 20, 2020

Page Two

with Goldman Sachs & Co. LLC (with respect to 25%) and other counterparties each acting as principal for its own account, consisting of the purchase by the Company of capped call options with respect to collectively approximately 12,047,710 shares of Company Common Stock, the aggregate number of shares of Company Common Stock underlying the Convertible Notes. The Capped Call Transactions may be adjusted, exercised, cancelled and/or terminated in accordance with their terms in connection with certain events. In particular, under the terms of the Capped Call Transactions, Goldman Sachs & Co. LLC and the other counterparties, each acting separately as calculation agent under the Capped Call Transactions to which it is a party, is entitled in certain circumstances to make adjustments to the terms of such Capped Call Transactions to reflect the economic effect of the announcement of the Transaction on the embedded call options. In addition, each of Goldman Sachs & Co. LLC and the other counterparties may, acting separately as the calculation agent, determining party or otherwise as principal under the Capped Call Transactions to which it is a party, determine such adjustments in respect of such Capped Call Transactions in accordance with their terms, including on or following consummation or abandonment of the Transaction. All actions or exercises of judgment by Goldman Sachs & Co. LLC, in its capacity as calculation agent, pursuant to the terms of the Capped Call Transactions to which it is a party must be performed in good faith and a commercially reasonable manner.

In connection with this opinion, we have reviewed, among other things, the Agreement; annual reports to stockholders and Annual Reports on Form 10-K of the Company and Parsley Energy for the five years ended December 31, 2019; certain interim reports to stockholders and Quarterly Reports on Form 10-Q of the Company and Parsley Energy; certain other communications from the Company and Parsley Energy to their respective stockholders; certain publicly available research analyst reports for the Company and Parsley Energy; certain internal financial analyses and forecasts for Parsley Energy on a stand-alone basis prepared by its management and adjusted by the management of the Company, certain internal financial analyses and forecasts for the Company on a stand-alone basis prepared by the management of the Company, and certain internal financial analyses and forecasts for the Company on a pro-forma basis giving effect to the Transaction prepared by the management of the Company, in each case as approved for our use by the Company (collectively, the “Forecasts”), including certain operating synergies projected by the management of the Company to result from the Transaction, as approved for our use by the Company (the “Synergies”). We have also held discussions with members of the senior managements of the Company and Parsley Energy regarding their assessment of the past and current business operations, financial condition and future prospects of Parsley Energy and with the members of senior management of the Company regarding their assessment of the past and current business operations, financial condition and future prospects of the Company and the strategic rationale for, and the potential benefits of, the Transaction; reviewed the reported price and trading activity for the shares of Company Common Stock and the shares of Parsley Energy Common Stock; compared certain financial and stock market information for the Company and Parsley Energy with similar information for certain other companies the securities of which are publicly traded; reviewed the financial terms of certain recent business combinations in the oil and gas exploration and production industry; and performed such other studies and analyses, and considered such other factors, as we deemed appropriate.

For purposes of rendering this opinion, we have, with your consent, relied upon and assumed the accuracy and completeness of all of the financial, legal, regulatory, tax, accounting and other information provided to, discussed with or reviewed by, us, without assuming any responsibility for independent verification thereof. In that regard, we have assumed with your consent that the Forecasts, including the Synergies, have been reasonably prepared on a basis reflecting the best currently available estimates and judgments of the management of the Company. We have not made an independent evaluation, appraisal or geological or technical assessment of the assets and liabilities (including any contingent, derivative or other off-balance-sheet assets and liabilities) of the Company, Parsley Energy or Parsley LLC or any of their respective subsidiaries and we have not been furnished

Board of Directors

Pioneer Natural Resources USA, Inc. (“PNR USA”Company

October 20, 2020

Page Three

with any such evaluation or appraisal. We have assumed that all governmental, regulatory or other consents and together with PXD,approvals necessary for the “Parent”) and PNR Acquisition Company, LLC (“Merger Sub”), pursuant to which Merger Subconsummation of the Transaction will be merged with and intoobtained without any adverse effect on the Partnership (the “Merger”). InCompany, Parsley Energy or Parsley LLC or on the Merger, each outstanding common unitexpected benefits of the Partnership (each, a “Partnership Common Unit”), other than Partnership Common Units owned byTransaction in any way meaningful to our analysis. We also have assumed that the Parent or its subsidiaries,Transaction will be converted into the right to receive 0.2325 of a share (the “Exchange Ratio”) of the common stock of PXD (the “PXD Common Stock”). The exchange includes one whole share of PXD Common Stock for any fraction of a share a Partnership unitholder would otherwise receive basedconsummated on the Exchange Ratio. As a result of the Merger, Pioneer GP will remain the sole general partner of the Partnership, and PNR USA will become the sole limited partner of the Partnership. The terms and conditions of the Merger are more fully set forth in the Merger Agreement, and terms used herein andwithout the waiver or modification of any term or condition the effect of which would be in any way meaningful to our analysis.

Our opinion does not defined shall haveaddress the meanings ascribedunderlying business decision of the Company to engage in the Merger Agreement.

The Conflicts CommitteeTransaction, or the relative merits of the Board of Directors of Pioneer GP (the “Conflicts Committee”) has asked us whether, in ourTransaction as compared to any strategic alternatives that may be available to the Company; nor does it address any legal, regulatory, tax or accounting matters. This opinion as ofaddresses only the date hereof, the Exchange Ratio is fair,fairness from a financial point of view to the holdersCompany, as of Partnership Common Units (other than the Parentdate hereof, of the Exchange Ratio pursuant to the Agreement. We do not express any view on, and its affiliates).

Inour opinion does not address, any other term or aspect of the Agreement or Transaction or any term or aspect of any other agreement or instrument contemplated by the Agreement or entered into or amended in connection with rendering our opinion, we have, among other things:

(i) Reviewed a draftthe Transaction, including, the fairness of the Merger Agreement and the Voting Agreement, each dated August 9, 2013;

(ii) Reviewed certain publicly available business and financial information relatingTransaction to, the Partnership and the Parent that we deemed to be relevant, including publicly available research analysts’ estimates;

(iii) Reviewed certain non-public projected financial statements and other non-public financial and operating data relating to the Partnership and the Parent that were prepared and furnished to usor any consideration received in connection therewith by, the management of the Parent;

(iv) Reviewed an internal report regarding the Partnership’s proved and non-proved reserves as prepared by the Parent;

(v) Reviewed an internal report regarding the Parent’s proved and non-proved reserves as prepared by the Parent;

(vi) Reviewed a report regarding the Partnership’s proved and non-proved reserves as prepared by Russell K Hall & Associates Inc.;

(vii) Discussed past and current operations, current financial condition, financial projections and proved and non-proved reserves of the Partnership and the Parent with management of the Parent (including their views on the risks and uncertainties of achieving such projections);

(viii) Compared the financial performance of the Partnership and the Parent and the prices and trading activity of the Partnership Common Units and the PXD Common Stock with that of certain publicly-traded companies and partnerships and their securities that we deemed relevant;

(ix) Compared the financial performance of the Partnership and the valuation multiples implied by the Merger with those of certain other transactions that we deemed relevant;

(x) Compared the financial performance of the Parent with the valuation multiples of certain transactions that we deemed relevant;

(xi) Reviewed certain research analyst estimates of the future financial performance of the Partnership and the Parent that we deemed to be relevant; and

(xii) Performed such other analyses and examinations, reviewed such other information and considered such other factors that we deemed appropriate for purposes of providing the opinion contained herein.

For purposes of our analysis and opinion, we have assumed and relied upon, without undertaking any independent verification of, the accuracy and completeness of the information made available to, discussed with or reviewed by us, and we undertake no responsibility therefor. With respect to the financial projections of the Partnership and Parent which were furnished to us, we have assumed that such financial projections have been reasonably prepared by the Parent on bases reflecting the best currently available estimates and good faith judgments of the future competitive, operating and regulatory environments and related financial performance of the Partnership and Parent. We express no view as to any such financial projections or the assumptions on which they are based.

For purposes of rendering our opinion, we have assumed, with your consent, that the final versions of all documents reviewed by us in draft form, including the Merger Agreement and the Voting Agreement, will conform in all material respects to the drafts reviewed by us, that the representations and warranties of each party contained in the Merger Agreement and the Voting Agreement are true and correct, that each party will perform all of the covenants and agreements required to be performed by it under the Merger Agreement and the Voting Agreement and that all conditions to the consummation of the Merger will be satisfied without material waiver or modification thereof. We have further assumed, with your consent, that all governmental, regulatory or other consents, approvals or releases necessary for the consummation of the Merger will be obtained without any delay, limitation, restriction or condition that would have an adverse effect on the Partnership or the consummation of the Merger or materially reduce the benefits to the holders of the Partnership Common Unitsany class of securities, creditors, or other constituencies of the Merger.

We have not made,Company; nor assumed any responsibility for making, any independent valuation or appraisalas to the fairness of the assetsamount or liabilities (contingentnature of any compensation to be paid or otherwise)payable to any of the Partnershipofficers, directors or employees of the Company, Parsley Energy or Parsley LLC, or any class of its subsidiaries, nor have we been furnishedsuch persons in connection with the Transaction, whether relative to the Exchange Ratio pursuant to the Agreement or otherwise. We are not expressing any such appraisals, nor have we evaluatedopinion as to the prices at which shares of Company Common Stock or shares of Parsley Energy Common Stock will trade at any time, as to the potential effects of volatility in the credit, financial and stock markets on the Company, Parsley Energy, Parsley LLC or the Transaction, or as to the impact of the Transaction on the solvency or fair valueviability of the PartnershipCompany, Parsley Energy or anyParsley LLC or the ability of its subsidiaries under any statethe Company, Parsley Energy or federal laws relatingParsley LLC to bankruptcy, insolvency or similar matters.pay their respective obligations when they come due. Our opinion is necessarily based on economic, monetary, market and other conditions as in effect on, and the information made available to us as of, the date hereof. It is understood that subsequent developments may affecthereof and we assume no responsibility for updating, revising or reaffirming this opinion and that we do not have any obligation to update, revisebased on circumstances, developments or reaffirm this opinion.

We have not been asked to pass upon, and express no opinion with respect to, any matter other than the fairness of the Exchange Ratio, from a financial point of view, as ofevents occurring after the date hereof, tohereof. Our advisory services and the holders of Partnership Common Units (other than the Parent and its affiliates). We do not express any opinion as to the fairness, financial or otherwise, of the Merger to, or any consideration received in connection therewith by, the holders of any other securities, creditors or other constituencies of the Partnership, nor as to the amount or nature of any compensation payable or to be received by any member of management or employee of the Partnership in connection with the Merger. We express no opinion as to what the actual value of the Parent Common Stock will he when issued in connection with the Merger or the price at which the Parent Common Stock will trade at any time. Our opinion does not address the relative merits of the Merger as compared to other business or financial

strategies or opportunities that might be available to the Partnership, nor does it address the underlying business decision of the Partnership to engage in the Merger. Weexpressed herein are not legal, regulatory, accounting or tax experts and have assumed the accuracy and completeness of assessments by the Partnership and its advisors with respect to legal, regulatory, accounting and tax matters. In addition, you have not authorized us to solicit, and we have not solicited, any third party indications of interest for the purchase of all or any part of the Partnership.

We will receive a fee for our services upon the rendering of this opinion. In addition, the Partnership has agreed to reimburse certain of our expenses and to indemnify us against certain liabilities arising out of our engagement. We also received an initial fee upon execution of our engagement letter with respect to the Merger, and we will also be entitled to receive a fee if the Merger is consummated. In the ordinary course of business, Evercore Group L.L.C. and its affiliates may actively trade in the debt and equity securities, or options on securities, of the Partnership, the Parent, their respective affiliates or any other company that may be involved in the Merger, for its own account and for the accounts of its customers and, accordingly, may at any time hold a long or short position in such securities. We and our affiliates are not currently engaged, and during the two year period prior to the date hereof have not been engaged, to provide investment banking, investment management, financial advisory or other services to the Partnership or the Parent. We and our affiliates may in the future provide financial advisory or other services to the Partnership, Parent or their respective affiliates and in connection therewith we may receive compensation.

It is understood that this opinion is solelyprovided for the information of the Conflicts Committee in connection with and for the purposes of its evaluation of the Merger, and, if the Merger Agreement, the Merger and the transactions contemplated thereby are approved by the Conflicts Committee, the independent directorsassistance of the Board of Directors of Pioneer GP, and may not be disclosed to any third party or used for any other purpose without our prior written consent, except that a copy of this opinion may be included in any filing the Partnership is required to make with the Securities and Exchange CommissionCompany in connection with its consideration of the Merger ifTransaction and such inclusion is required by applicable law, provided that the opinion is reproduced in full in such filing and any description of or reference to us or summary of this opinion and the related analyses in such filing is in a form reasonably acceptable to us and our counsel. Our opinion does not constitute a recommendation as to the Conflicts Committee or the independent directors of the Board of Directors of Pioneer GP, or tohow any holder of Partnershipshares of Company Common Units asStock should vote with respect to how such holder should actTransaction or vote in connection with the Merger. The issuance of thisany other matter. This opinion has been approved by an Opinion Committeea fairness committee of Evercore Group L.L.C.Goldman Sachs & Co. LLC.

Based upon and subject to the foregoing, it is our opinion that, as of the date hereof, the Exchange Ratio pursuant to the Agreement is fair from a financial point of view to the Company.

Very truly yours,

/s/ Goldman Sachs & Co. LLC                

(GOLDMAN SACHS & CO. LLC)

Annex C

Morgan Stanley

October 20, 2020

CONFIDENTIAL

Board of Directors

Pioneer Natural Resources Company

777 Hidden Ridge

Irving, Texas 75038

Members of the Board:

We understand that Parsley Energy, Inc. (“Pearl” or the “Company”), Parsley Energy, LLC, a subsidiary of Pearl (“Opco”), Pioneer Natural Resources Company (“Poseidon”), Pearl First Merger Sub Inc., a wholly owned subsidiary of Poseidon (“Acquisition Sub”), Pearl Second Merger Sub LLC, a wholly owned subsidiary of Poseidon (“Merger Sub LLC”), and Pearl Opco Merger Sub LLC, a wholly owned subsidiary of Poseidon (“Opco Merger Sub”), propose to enter into an Agreement and Plan of Merger, substantially in the form of the draft dated October 19, 2020 (the “Merger Agreement”), which provides, among other things, for (i) the merger (the “Merger”) of Acquisition Sub with and into the Company, with the Company continuing as the surviving entity (the “Surviving Corporation”), (ii) the merger of Opco Merger Sub with and into Opco (the “Opco Merger”) and (iii) immediately following the Merger, the merger of the Surviving Corporation with and into Merger Sub LLC (the “Second Company Merger” and, together with the Merger, the “Integrated Mergers”, and together with the Merger and the Opco Merger, the “Mergers”). Pursuant to the Merger and the Opco Merger, each of the Company and Opco will become a wholly owned subsidiary of Poseidon, and (1) each (x) outstanding share of Class A common stock, par value $0.01 per share, of the Company (the “Company Class A Common Stock”), other than shares held by Pearl as treasury stock or owned, directly or indirectly, by Poseidon or Acquisition Sub and other than any unvested award of restricted Company Class A Common stock that does not vest by its terms as a result of the consummation of the Mergers, and (y) outstanding Opco LLC Unit (as defined in the Merger Agreement), other than Opco LLC Units owned, directly or indirectly by the Company or Poseidon or any of their respective subsidiaries, will be converted into the right to receive 0.1252 shares (the “Exchange Ratio”) of common stock, par value $0.01 per share, of Poseidon (the “Poseidon Common Stock”) (the “Consideration”), and (2) each outstanding share of Class B common stock, par value $0.01 per share, of the Company (the “Company Class B Common Stock”), will be canceled for no additional consideration, subject to the rights of the holders of any shares of Company Class B Common Stock to demand appraisal with respect to, and only with respect to, such holder’s shares of Company Class B Common Stock. The terms and conditions of the Merger are more fully set forth in the Merger Agreement.

You have asked for our opinion as to whether the Exchange Ratio pursuant to the Merger Agreement is fair from a financial point of view to Poseidon.

For purposes of the opinion set forth herein, we have:

1)

Reviewed certain publicly available financial statements and other business and financial information of the Company and Poseidon, respectively;

2)

Reviewed certain internal financial statements and other financial and operating data concerning the Company and Poseidon, respectively;

3)

Reviewed certain financial projections prepared by the managements of the Company and Poseidon, respectively;

4)

Reviewed information relating to certain strategic, financial and operational benefits anticipated from the Mergers, prepared by the management of Poseidon;

5)

Discussed the past and current operations and financial condition and the prospects of the Company, including information relating to certain strategic, financial and operational benefits anticipated from the Mergers, with senior executives of the Company;

6)

Discussed the past and current operations and financial condition and the prospects of Poseidon, including information relating to certain strategic, financial and operational benefits anticipated from the Mergers, with senior executives of Poseidon;

7)

Reviewed the pro forma impact of the Mergers on Poseidon’s cash flow per share, consolidated capitalization and certain financial ratios;

8)

Reviewed the reported prices and trading activity for the Company Class A Common Stock and Poseidon Common Stock;

9)

Compared the financial performance of the Company and Poseidon and the prices and trading activity of the Company Class A Common Stock and Poseidon Common Stock with that of certain other publicly-traded companies comparable with the Company and Poseidon, respectively, and their securities;

10)

Reviewed the financial terms, to the extent publicly available, of certain comparable acquisition transactions;

11)

Reviewed the Merger Agreement and certain related documents; and

12)

Performed such other analyses and considered such other factors as we have deemed appropriate.

We have assumed and relied upon, without independent verification, the accuracy and completeness of the information that was publicly available or supplied or otherwise made available to us by the Company and Poseidon, and formed a substantial basis for this opinion. With respect to the financial projections, including information relating to certain strategic, financial and operational benefits anticipated from the Mergers, we have assumed that they have been reasonably prepared on bases reflecting the best currently available estimates and judgments of the respective managements of the Company and Poseidon of the future financial performance of the Company and Poseidon. In addition, we have assumed that the Mergers will be consummated in accordance with the terms set forth in the Merger Agreement without any waiver, amendment or delay of any terms or conditions, including, among other things, that the Integrated Mergers will be treated as a tax-free reorganization, pursuant to the Internal Revenue Code of 1986, as amended and that the definitive Merger Agreement will not differ in any material respect from the draft thereof furnished to us. Morgan Stanley has assumed that in connection with the receipt of all the necessary governmental, regulatory or other approvals and consents required for the proposed Mergers, no delays, limitations, conditions or restrictions will be imposed that would have a material adverse effect on the contemplated benefits expected to be derived in the proposed Mergers. We are not legal, tax, or regulatory advisors. We are financial advisors only and have relied upon, without independent verification, the assessment of Poseidon and the Company and their legal, tax or regulatory advisors with respect to legal, tax or regulatory matters. We express no opinion with respect to the fairness of the amount or nature of the compensation to any of the Company’s officers, directors or employees, or any class of such persons, relative to the Consideration to be paid to the holders of shares of the Company Class A Common Stock or the Opco LLC Units in the transaction. Our opinion does not address the relative merits of the transactions contemplated by the Merger Agreement as compared to other business or financial strategies that might be available to Poseidon, nor does it address the underlying business decision of Poseidon to enter into the Merger Agreement or proceed with any other transaction contemplated by the Merger Agreement. We have not made any independent valuation or appraisal of the assets or liabilities of the Company or Poseidon, nor have we been furnished with any such valuations or appraisals. Our opinion is necessarily based on financial, economic, market

and other conditions as in effect on, and the information made available to us as of, the date hereof. Events occurring after the date hereof may affect this opinion and the assumptions used in preparing it, and we do not assume any obligation to update, revise or reaffirm this opinion.

We have acted as financial advisor to the Board of Directors of Poseidon in connection with this transaction and will receive a fee for our services, a substantial portion of which is contingent upon the closing of the Mergers. In the two years prior to the date hereof, we have provided financing services for Poseidon and the Company and have received fees in connection with such services. Morgan Stanley may also seek to provide financial advisory and financing services to Poseidon, the Company and Quantum Energy Partners, LLC (“Quantum”), which owns approximately 17% of the outstanding Company Class A Common Stock through its affiliate Q-Jagged Peak Energy Investment Partners, LLC, and their respective affiliates in the future and would expect to receive fees for the rendering of these services. In addition, Morgan Stanley, its affiliates, directors or officers, including individuals working with Poseidon in connection with this transaction, may have committed and may commit in the future to invest in private equity funds managed by Quantum or its affiliates.

Please note that Morgan Stanley is a global financial services firm engaged in the securities, investment management and individual wealth management businesses. Our securities business is engaged in securities underwriting, trading and brokerage activities, foreign exchange, commodities and derivatives trading, prime brokerage, as well as providing investment banking, financing and financial advisory services. Morgan Stanley, its affiliates, directors and officers may at any time invest on a principal basis or manage funds that invest, hold long or short positions, finance positions, and may trade or otherwise structure and effect transactions, for their own account or the accounts of its customers, in debt or equity securities or loans of Poseidon, the Company, Quantum or any other company, or any currency or commodity, that may be involved in this transaction, or any related derivative instrument.

This opinion has been approved by a committee of Morgan Stanley investment banking and other professionals in accordance with our customary practice. This opinion is for the information of the Board of Directors of Poseidon and may not be used for any other purpose or disclosed without our prior written consent, except that a copy of this opinion may be included in its entirety in any filing Poseidon is required to make with the Securities and Exchange Commission in connection with this transaction if such inclusion is required by applicable law and a copy of this opinion may be provided to the Company and its legal advisors following the execution of the Merger Agreement, subject to the terms of our engagement letter with Poseidon. In addition, this opinion does not in any manner address the prices at which Poseidon Common Stock will trade following consummation of the Mergers or at any time and Morgan Stanley expresses no opinion or recommendation as to how the shareholders of Poseidon and the Company should vote at the shareholders’ meetings to be held in connection with the Merger.

Based on and subject to the foregoing, we are of the opinion on the date hereof that the Exchange Ratio pursuant to the Merger Agreement is fair from a financial point of view to Poseidon.

Very truly yours,

MORGAN STANLEY & CO. LLC

By:     /s/ Mark L. Carmain                                    

Mark L. Carmain

Managing Director

Annex D

October 20, 2020

Parsley Energy, Inc.

303 Colorado Street, Suite 3000

Austin, TX 78701

Attention: Board of Directors

Members of the Board:

You have asked us to advise you in your capacity as the Board of Directors (the “Board”) of Parsley Energy, Inc. (the “Company”) with respect to the fairness, from a financial point of view, to the Company Stockholders (as defined below) of the Exchange Ratio (as defined below) set forth in the Agreement and Plan of Merger, dated as of October 20, 2020 (the “Agreement”), by and among Pioneer Natural Resources Company (the “Acquiror”), Pearl First Merger Sub Inc., a wholly owned subsidiary of the Acquiror (“Merger Sub Inc.”), Pearl Second Merger Sub LLC, a wholly owned subsidiary of the Acquiror (“Merger Sub LLC”), Pearl Opco Merger Sub LLC, a wholly owned subsidiary of the Acquiror (“Opco Merger Sub LLC”), the Company and Parsley Energy, LLC, a subsidiary of the Company (“Opco”). We understand that the Agreement provides for, among other things, (1) the merger of Merger Sub Inc. with the Company (the “First Company Merger”) and, simultaneously with the First Company Merger, the merger of Opco Merger Sub LLC with Opco (the “Opco Merger”), pursuant to which the Company will become a wholly owned subsidiary of the Acquiror, and (2) immediately following the First Company Merger, the merger of the Company with Merger Sub LLC (together with the First Company Merger and the Opco Merger, the “Transaction”), pursuant to which the Company will remain a wholly owned subsidiary of the Acquiror and (x) each outstanding share of Class A common stock, par value $0.01 per share (“Class A Common Stock”), of the Company will be converted into and become exchangeable for 0.1252 shares (the “Exchange Ratio”) of common stock, par value $0.01 per share (“Acquiror Common Stock”), of the Acquiror and (y) each outstanding unit (“Opco LLC Unit”) representing membership interests in Opco will be converted into the right to receive a number of shares of Parent Common Stock equal to the Exchange Ratio and each such Opco LLC Unit together with the associated share of Class B common stock, par value $0.01 per share (the “Class B Common Stock”), of the Company will be cancelled for no additional consideration. The holders of shares of Class A Common Stock and Class B Common Stock are referred to herein as the “Company Stockholders.” You have advised us and for purposes of our analyses and opinion we have assumed, that there is currently, and as of the effective time of the First Merger and the Opco Merger there will be, an outstanding share of Class B Common Stock associated with each outstanding Opco LLC Unit other than the Excluded Opco LLC Units (as defined in the Agreement), that each holder of outstanding shares of Class B Common Stock currently holds, and as of the effective time of the First Merger and the Opco Merger will hold, an equivalent number of Opco LLC Units and that, pursuant to the Limited Liability Company Agreement of Opco, dated June 11, 2013, as amended, holders of Opco LLC Units other than the Company have the right to exchange an Opco LLC Unit together with the associated share of Class B Common Stock for one share of Class A Common Stock and, consequently, for purposes of our analyses and this opinion we have, at your direction, treated one share of Class B Common Stock and the associated Opco LLC Unit as a single integrated security held by each holder of Class B Common Stock (together, the “Class B Stapled Security”). For purposes of our analyses and this opinion we have at your direction also assumed that (i) the Exchange Ratio will be received by the holders Class A Common Stock in respect of their Class A Common Stock as a result of the First Company Merger, (ii) the Exchange Ratio will be received by the holders of Class B Common Stock in respect of their Class B Stapled Security as a result of the First Company Merger and the Opco Merger, and (iii) a Class B Stapled Security is equivalent in value and identical in all other respects material to our analyses and this opinion to a share of Class A Common Stock.

In arriving at our opinion, we have reviewed the Agreement and certain publicly available business and financial information relating to the Company and the Acquiror. We have also reviewed certain other information relating to the Company and the Acquiror, including (i) financial forecasts and projected production and operating data relating to the Company provided to us by the Company’s management (the “Company Projections”) reflecting alternative commodity price assumptions and based on certain oil and gas reserve information prepared by the Company’s management regarding its oil and gas reserves (the “Company Reserve Information”); (ii) financial forecasts provided to us by the Acquiror’s management and projected production and operating data relating to the Acquiror provided to us by the Acquiror’s management as adjusted by the Company’s management (the “Company Projections for the Acquiror”) reflecting alternative commodity price assumptions and based on certain oil and gas reserve information prepared by the Acquiror’s management regarding its oil and gas reserves as adjusted by the Company’s management (the “Company Reserve Information for the Acquiror”); (iii) riskings for the Company’s and the Acquiror’s oil and gas reserves reviewed and discussed with us by the Company’s management (the “Riskings for the Company and the Acquiror”); and (iv) certain publicly available market data regarding future oil and gas commodity pricing reviewed and discussed with us by the Company’s management (collectively, “Publicly Available Future Pricing Data”). We also met with the management of the Company and certain of its representatives to discuss the businesses and prospects of the Company and the Acquiror. We have also considered certain financial and stock market data of the Company and the Acquiror, and we have compared that data with similar data for other companies with publicly traded equity securities in businesses we deemed similar to those of the Company and the Acquiror, respectively, and we have considered, to the extent publicly available, the financial terms of certain other business combinations and other transactions which have been effected or announced. We also considered such other information, financial studies, analyses and investigations and financial, economic and market criteria which we deemed relevant.

In connection with our review, we have not independently verified any of the foregoing information and, with your consent, we have assumed and relied upon such information being complete and accurate in all respects material to our analyses and this opinion. With respect to the Company Projections (including the alternative commodity pricing assumptions), we have been advised by the management of the Company, and we have assumed with your consent, that such forecasts and estimates have been reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of the Company as to the future financial performance of the Company. With respect to the Company Projections for the Acquiror (including the alternative commodity pricing assumptions), we have been advised by the management of the Company, and we have assumed with your consent, that such forecasts and estimates have been reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of the Company as to the future financial performance of the Acquiror. With respect to the Company Reserve Information, management of the Company has advised us and we have assumed that such reserve information has been reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of the Company as to the Company’s oil and gas reserves. With respect to the Company Reserve Information for the Acquiror, management of the Company has advised us and we have assumed that such reserve information has been reasonably prepared in good faith on bases reflecting the best currently available estimates and judgments of the management of the Company as to the Acquiror’s oil and gas reserves. With respect to the Riskings for the Company and the Acquiror, management of the Company has advised us and we have assumed that such riskings have been reasonably prepared in good faith on bases reflecting such management’s best currently available estimates and judgments as to the appropriate riskings for the Company Reserve Information and the Company Reserve Information for the Acquiror, as applicable. At your direction we have assumed that the Company Projections, the Company Projections for the Acquiror, the Company Reserve Information, the Company Reserve Information for the Acquiror, the Riskings for the Company and the Acquiror, and the Publicly Available Future Pricing Data are a reasonable basis upon which to evaluate the Company, the Acquiror and the Transaction and have used and relied upon such information for purposes of our analyses and this opinion. We express no view or opinion with respect to the Company Projections, the Company Projections for the Acquiror, the Company Reserve Information, the Company Reserve Information for the Acquiror, the Riskings for the Company and the Acquiror and the Publicly Available Future Pricing Data, or the assumptions upon which any of the foregoing are based.

In addition, we have relied upon, without independent verification (i) the assessments of the management of the Company with respect to the Acquiror’s ability to integrate the businesses of the Company and the Acquiror and (ii) the assessments of the management of the Company as to the Acquiror’s existing technology and future capabilities with respect to the extraction of the Acquiror’s and the Company’s oil and gas reserves and other oil and gas resources (and associated timing and costs) and the production of various oil and gas products, including liquefied natural gas (and associated timing and costs), and, with your consent, have assumed that there have been no developments that would adversely affect such management’s views with respect to such technologies, capabilities, timing and costs. We have assumed with your consent that the Transaction will qualify as a “reorganization” within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended. We also have assumed, with your consent, that, in the course of obtaining any regulatory or third party consents, approvals or agreements in connection with the Transaction, no modification, delay, limitation, restriction or condition will be imposed that would have an adverse effect on the Company, the Acquiror or the contemplated benefits of the Transaction and that the Transaction will be consummated in compliance with all applicable laws and regulations and in accordance with the terms of the Agreement without waiver, modification or amendment of any term, condition or agreement thereof that is material to our analyses or this opinion. In addition, we have not been requested to make, and have not made, an independent evaluation or appraisal of the assets or liabilities (contingent or otherwise) of the Company or the Acquiror, nor have we been furnished with any such evaluations or appraisals (other than publicly available oil and gas reserve information with respect to the Company and the Acquiror and certain oil and gas reserve information with respect to the Company and the Acquiror prepared by their respective managements or third party oil and gas reserve consultants).

Our opinion addresses only the fairness, from a financial point of view, to the holders of Class A Common Stock of the Exchange Ratio to be received by the holders of shares of Class A Common Stock with respect to their shares of Class A Common Stock in the First Merger and the fairness, from a financial point of view, to the holders of Class B Common Stock of the Exchange Ratio to be received by the holders of shares of Class B Common Stock with respect to their Class B Stapled Securities in the First Merger and the Opco Merger pursuant to the Agreement in the manner set forth herein and does not address any other aspect or implication of the Transaction or any agreement, arrangement or understanding entered into in connection therewith or otherwise, including, without limitation, the form or structure of the Transaction, the voting agreements entered into by certain holders of shares of Class A Common Stock and Class B Common Stock and Opco LLC Units with the Acquiror in connection with the Transaction, the tax receivable agreement (the “TRA”) between the Company and certain holders of Opco LLC Units (and any amendment to be entered into in connection with the Transaction), any obligation or payment that may be required under the TRA, and the fairness of the amount or nature of, or any other aspect relating to, any compensation or consideration to be received or otherwise payable to any officers, directors, employees, securityholders or affiliates of any party to the Transaction, or class of such persons, relative to the Exchange Ratio or otherwise. Furthermore, we are not expressing any advice or opinion regarding matters that require legal, regulatory, accounting, insurance, intellectual property, tax, environmental, executive compensation or other similar professional advice, including, without limitation, any advice regarding the amounts of any company’s oil and gas reserves, the riskings attributable to such reserves or any other aspects of any company’s oil and gas reserves. We have assumed that the Company has or will obtain such advice or opinions from the appropriate professional sources. The issuance of this opinion was approved by our authorized internal committee.

Our opinion is necessarily based on information made available to us as of the date hereof and upon financial, economic, market and other conditions as they exist and can be evaluated on the date hereof. We have not undertaken, and are under no obligation, to update, revise, reaffirm or withdraw this opinion, or otherwise comment on or consider events occurring or coming to our attention after the date hereof. In addition, as you are aware, the financial projections and estimates that we have reviewed relating to the future financial performance of the Company and the Acquiror and the Synergies Estimates reflect certain assumptions regarding (x) the oil and gas industry and future commodity prices associated with that industry and (y) the political policies and risk relevant to the conduct of the Company’s businesses that are or could be subject to significant uncertainty and volatility and that, if different than assumed, could have a material impact on our analyses and this opinion. As you are also aware, the financial markets have been experiencing unusual volatility, and we express no opinion or

view as to any potential effects of such volatility on the Company, the Acquiror or the Transaction. We are not expressing any opinion as to what the value of shares of Acquiror Common Stock actually will be when issued to the holders of Company Common Stock pursuant to the Agreement or the prices or ranges of prices at which shares of Company Common Stock or Acquiror Common Stock may be purchased or sold at any time. We have assumed that the shares of Acquiror Common Stock to be issued in the Transaction will be approved for listing on the New York Stock Exchange prior to the consummation of the Transaction. Our opinion does not address the relative merits of the Transaction as compared to alternative transactions or strategies that might be available to the Company, nor does it address the underlying business decision of the Board or the Company to proceed with or effect the Transaction. We were not requested to, and we did not, solicit third party indications of interest in acquiring all or any part of the Company.

We have acted as financial advisor to the Company in connection with the Transaction and will receive a fee for our services, a substantial portion of which is contingent upon the consummation of the Transaction. We also became entitled to receive a fee upon the rendering of our opinion. In addition, the Company has agreed to reimburse us for certain of our expenses and to indemnify us and certain related parties for certain liabilities and other items arising out of or related to our engagement. We and our affiliates have in the past provided investment banking and other financial advice and services to the Company and its affiliates for which advice and services we and our affiliates have received compensation, including among other things, during the past two years, having acted as an underwriter or initial purchaser in connection with an issuance of high yield debt securities by the Company in 2020. We and our affiliates have in the past provided investment banking and other financial advice and services to the Acquiror and its affiliates for which advice and services we and our affiliates have received compensation, including among other things, during the past two years, having acted as an underwriter or initial purchaser in connection with the issuance of debt securities in 2020, a counterparty in connection with the execution of a derivative transaction entered into in 2020 and an underwriter or initial purchaser in connection with an issuance of an equity convertible security in 2020. We and our affiliates may in the future provide investment banking and other financial advice and services to the Company, the Acquiror and their respective affiliates for which advice and services we and our affiliates would expect to receive compensation. We are a full service securities firm engaged in securities trading and brokerage activities as well as providing investment banking and other financial advice and services. We and/or our affiliates are also participants and lenders under outstanding credit facilities of the Company and the Acquiror and/or certain of their respective affiliates. We or one of our affiliates have also extended a loan to the Executive Chairman of the Company secured by a portion of his position in the Class A Common Stock and Class B Common Stock and the associated Opco LLC Units. In the ordinary course of business, we and our affiliates may acquire, hold or sell, for our and our affiliates’ own accounts and the accounts of customers, equity, debt and other securities and financial instruments (including bank loans and other obligations) of the Company, the Acquiror and any other company that may be involved in the Transaction, as well as provide investment banking and other financial advice and services to such companies and their affiliates.

It is understood that this letter is for the information of the Board (in its capacity as such) in connection with its consideration of the Transaction and does not constitute advice or a recommendation to any security holder of the Company as to how such security holder should vote or act on any matter relating to the proposed Transaction.

Based upon and subject to the foregoing, it is our opinion that, as of the date hereof, the Exchange Ratio to be received by the holders of shares of Class A Common Stock with respect to their shares of Class A Common Stock in the First Merger is fair, from a financial point of view, to the holders of Partnershipshares of Class A Common Stock and the Exchange Ratio to be received by the holders of shares of Class B Common Stock with respect to their Class B Stapled Securities in the First Merger and the Opco Merger is fair, from a financial point of view, to the holders of shares of Class B Common Stock.

Very truly yours,

CREDIT SUISSE SECURITIES (USA) LLC

/s/ Credit Suisse Securities (USA) LLC

Annex E

October 20, 2020

Parsley Energy, Inc.

303 Colorado Street, Suite 3000

Austin, Texas 78701

Attention: Board of Directors

Members of the Board of Directors:

You have requested, in your capacity as the Board of Directors (the “Board”) of Parsley Energy, Inc. (the “Company”), our opinion with respect to the fairness, from a financial point of view, to the holders of Class A common stock, par value $0.01 per share (“Class A Common Stock”), of the Company and to the holders of Opco LLC Stapled Units (as defined in the Agreement, and collectively with Class A Common Stock, “Company Common Stock”) of the Exchange Ratio (as defined below) provided for in the proposed mergers (collectively, the “Transaction”) (i) of the Company with a wholly-owned subsidiary of Pioneer Natural Resources Company (the “Acquiror”, and such merger, the “First Company Merger”), (ii) of a wholly-owned subsidiary of the Acquiror with Opco LLC (the “Opco Merger”) and (iii) of the surviving corporation of the First Company Merger with a wholly-owned subsidiary of the Acquiror (the “Second Company Merger”). We understand that, among other things, pursuant to an Agreement and Plan of Merger, dated as of October 20, 2020 (the “Agreement”), between the Acquiror, Pearl First Merger Sub Inc., a wholly owned subsidiary of the Acquiror (“Merger Sub Inc.”), Pearl Second Merger Sub LLC, a wholly owned subsidiary of the Acquiror (“Merger Sub LLC”), Pearl Opco Merger Sub LLC, a wholly owned subsidiary of Acquiror (“Opco Merger Sub LLC”), Parsley Energy, LLC (“Opco LLC”) and the Company, Merger Sub Inc. will merge with the Company, the Company will become a wholly owned subsidiary of the Acquiror, Opco Merger Sub LLC will merge with Opco LLC, Opco LLC will become a wholly owned subsidiary of Acquiror and each outstanding share of Class A Common Stock, other than shares of Class A Common Stock held in treasury or owned, directly or indirectly, by the Acquiror or Merger Sub Inc. and certain unvested Company restricted stock awards, and each outstanding Opco LLC Unit (as defined in the Agreement), other than Opco LLC Units owned, directly or indirectly, by the Company or Acquiror or their respective subsidiaries, will be converted into the right to receive 0.1252 (the “Exchange Ratio”) of a share of the common stock, par value $0.01 per share (“Acquiror Common Stock”), of the Acquiror.

In preparing our opinion, we have:

reviewed the Agreement and the form of Voting Agreement (as defined in the Agreement);

reviewed certain publicly available business and financial information relating to the Company and the Acquiror and the industries in which they operate;

compared the financial and operating performance of the Company and the Acquiror with publicly available information concerning certain other companies we deemed relevant, and compared current and historic market prices of the Company Common Stock and the Acquiror Common Stock with similar data for such other companies;

reviewed certain internal financial analyses and forecasts for the Company (the “Company Projections”) and the Acquiror (the “Acquiror Projections”) prepared by the managements of the Company and the Acquiror;

reviewed certain estimates prepared by the management of the Company as to the potential cost savings and synergies expected by such management to be achieved as a result of the Transaction (the “Synergies”);

discussed with the management of the Company regarding certain aspects of the Transaction, the business, financial condition and prospects of the Company, the effect of the Transaction on the business, financial condition and prospects of the Company, and certain other matters that we deemed relevant; and

considered such other financial analyses and investigations and such other information that we deemed relevant.

In giving our opinion, we have assumed and relied upon the accuracy and completeness of all information that was publicly available or was furnished to or discussed with us by the Company or the Acquiror or otherwise reviewed by us. We have not independently verified any such information, and pursuant to the terms of our engagement by the Company, we did not assume any obligation to undertake any such independent verification. In relying on the Company Projections and Acquiror Projections (including the Synergies), we have assumed that they have been reasonably prepared on bases reflecting the best currently available estimates and judgments of management as to the future performance and financial condition of the Company and the Acquiror. We express no view or opinion with respect to the Company Projections, the Acquiror Projections, and the Synergies or the assumptions upon which they are based. We have assumed that any representations and warranties made by the Company and the Acquiror in the Agreement or in other agreements relating to the Transaction will be true and accurate in all respects that are material to our analysis and that the Company will have no exposure for indemnification pursuant to the Agreement or such other agreements that would be material to our analysis. At your direction, we have assumed for purposes of our analyses and this opinion that the Class A Common Stock and the Opco LLC Stapled Units are equivalent in all respects.

For purposes of our analyses and this opinion we have assumed that, for U.S. federal income tax purposes, the First Company Merger and the Second Company Merger will qualify as a “reorganization” within the meaning of Section 368 of the Internal Revenue Code of 1986, as amended. We have also assumed that the Transaction will have the tax consequences described in discussions with, and materials provided to us by, the Company and its representatives. We also have assumed that, in the course of obtaining any regulatory or third party consents, approvals or agreements in connection with the Transaction, no delay, limitation, restriction or condition will be imposed that would have an adverse effect on the Company, the Acquiror or the contemplated benefits of the Transaction. We have also assumed that the Transaction will be consummated in compliance with all applicable laws and regulations and in accordance with the terms of the Agreement without waiver, modification or amendment of any term, condition or agreement thereof that is material to our analyses or this opinion. In addition, we have not made any independent evaluation, inspection or appraisal of the assets or liabilities (contingent or otherwise) of the Company or the Acquiror, nor have we been furnished with any such evaluations or appraisals. We have not evaluated the solvency of the Company or the Acquiror under any state or federal laws relating to bankruptcy, insolvency or similar matters. We have further assumed that the final form of the Agreement, when executed by the parties thereto, will conform to the execution copy reviewed by us in all respects material to our analyses and this opinion.

Our opinion only addresses the fairness, from a financial point of view, of the Exchange Ratio to the holders of the Company Common Stockin the proposed Transaction and we express no opinion as to the fairness of any consideration paid in connection with the Transaction to the holders of any other class of securities, creditors or other constituencies of the Company. Furthermore, we express no opinion as to any other aspect or implication (financial or otherwise) of the Transaction, or any other agreement (including the Tax Receivable Agreement (as defined in the Agreement)), arrangement or understanding entered into in connection with the Transaction or otherwise, including, without limitation, the fairness of the amount or nature of, or any other aspect relating to, any compensation or consideration to be received by or otherwise payable to any officers, directors or employees of any party to the Transaction, or class of such persons, relative to the Exchange Ratio or otherwise (including the Early Termination Payment (as defined in the Agreement) under the Tax Receivable Agreement). Furthermore, we are not expressing any advice or opinion regarding matters that require legal, regulatory, accounting, insurance, tax, environmental, executive compensation or other similar professional advice and have relied upon the assessments of the Company and its advisors with respect to such advice.

Our opinion is necessarily based upon information made available to us as of the date hereof and financial, economic, market and other conditions as they exist and can be evaluated on the date hereof. We have not undertaken, and are under no obligation, to update, revise, reaffirm or withdraw this opinion, or otherwise comment on or consider events occurring or coming to our attention after the date hereof, notwithstanding that any such subsequent developments may affect this opinion. Our opinion does not address the relative merits of the Transaction as compared to any alternative transactions or strategies that might be available to the Company, nor does it address the underlying business decision of the Board or the Company to proceed with or effect the Transaction. We are not expressing any opinion as to the price at which Company Common Stock or Acquiror Common Stock may be traded at any time.

We were not requested to, and did not, provide advice concerning the structure, the specific Exchange Ratio or any other aspects of the Transaction, or to provide any services other than the delivery of this opinion. We were not requested to, and did not, solicit third-party indications of interest in acquiring all or any part of the Company or any other alternative transaction. We did not participate in negotiations with respect to the terms of the Transaction and related transactions.

We have acted as financial advisor to the Company in connection with the Transaction and will receive a fee from the Company for such services, a substantial portion of which is contingent upon the consummation of the Transaction. We also became entitled to receive a fee upon the rendering of our opinion. In addition, the Company has agreed to reimburse us for certain expenses and to indemnify us and certain related parties for certain liabilities and other items arising out of our engagement.

During the two years preceding the date of this opinion, we and our affiliates have had investment or commercial banking relationships with the Company and the Acquiror, for which we and such affiliates have received customary compensation. Such relationships have included acting as lead bookrunner and sole lead arranger on the Company’s facility agreement in April 2020, as lead bookrunner and co-lead arranger on the Acquiror’s facility agreement in October 2018, as placement agent on the Acquiror’s share repurchase in January 2020, as lead bookrunner and co-lead arranger on the Acquiror’s facility agreement in April 2020, as joint bookrunner on an issuance of debt securities by the Acquiror in May 2020, and as joint bookrunner on an issuance of debt securities by the Acquiror in August 2020. We or our affiliates are also an agent and a lender to one or more of the credit facilities of the Company and the Acquiror. In addition, during the two years preceding the date of this opinion, we and our affiliates have had investment or commercial banking relationships with portfolio companies of Quantum Energy, which portfolio companies are not related to the Transaction. We and our affiliates hold, on a proprietary basis, less than 1% of the outstanding common stock of each of the Company and the Acquiror. In the ordinary course of business, we and our affiliates may trade or otherwise effect transactions in the securities or other financial instruments (including bank loans or other obligations) of the Company, the Acquiror and certain of their affiliates for our own account and for the accounts of our customers and, accordingly, may at any time hold a long or short position in such securities or financial instruments.

This letter is for the information and use of the Board (in its capacity as such) in connection with its evaluation of the Transaction. This opinion does not constitute advice or a recommendation to any stockholder of the Company or any other person as to how to vote or act on any matter relating to the proposed Transaction or any other matter. This opinion may not be used or relied upon for any other purpose without our prior written consent, nor shall this opinion be disclosed to any person or quoted or referred to, in whole or in part, without our prior written consent. This opinion may be reproduced in full in any proxy or information statement mailed to stockholders of the Company but may not otherwise be disclosed publicly in any manner without our prior written consent. The issuance of this opinion has been approved by a fairness committee of Wells Fargo Securities.

Based upon and subject to the foregoing, it is our opinion that, as of the date hereof, the Exchange Ratio in the proposed Transaction is fair, from a financial point of view, to the holders of the Company Common Stock.

Very truly yours,

WELLS FARGO SECURITIES, LLC

/s/ Wells Fargo Securities, LLC

Annex F

Section 262 of the General Corporation Law of the State of Delaware

§ 262 Appraisal rights.

(a) Any stockholder of a corporation of this State who holds shares of stock on the date of the making of a demand pursuant to subsection (d) of this section with respect to such shares, who continuously holds such shares through the effective date of the merger or consolidation, who has otherwise complied with subsection (d) of this section and who has neither voted in favor of the merger or consolidation nor consented thereto in writing pursuant to § 228 of this title shall be entitled to an appraisal by the Court of Chancery of the fair value of the stockholder’s shares of stock under the circumstances described in subsections (b) and (c) of this section. As used in this section, the word “stockholder” means a holder of record of stock in a corporation; the words “stock” and “share” mean and include what is ordinarily meant by those words; and the words “depository receipt” mean a receipt or other instrument issued by a depository representing an interest in 1 or more shares, or fractions thereof, solely of stock of a corporation, which stock is deposited with the depository.

(b) Appraisal rights shall be available for the shares of any class or series of stock of a constituent corporation in a merger or consolidation to be effected pursuant to § 251 (other than a merger effected pursuant to § 251(g) of this title), § 252, § 254, § 255, § 256, § 257, § 258, § 263 or § 264 of this title:

(1) Provided, however, that no appraisal rights under this section shall be available for the shares of any class or series of stock, which stock, or depository receipts in respect thereof, at the record date fixed to determine the stockholders entitled to receive notice of the meeting of stockholders to act upon the agreement of merger or consolidation (or, in the case of a merger pursuant to § 251(h), as of immediately prior to the execution of the agreement of merger), were either: (i) listed on a national securities exchange or (ii) held of record by more than 2,000 holders; and further provided that no appraisal rights shall be available for any shares of stock of the constituent corporation surviving a merger if the merger did not require for its approval the vote of the stockholders of the surviving corporation as provided in § 251(f) of this title.

(2) Notwithstanding paragraph (b)(1) of this section, appraisal rights under this section shall be available for the shares of any class or series of stock of a constituent corporation if the holders thereof are required by the terms of an agreement of merger or consolidation pursuant to §§ 251, 252, 254, 255, 256, 257, 258, 263 and 264 of this title to accept for such stock anything except:

a. Shares of stock of the corporation surviving or resulting from such merger or consolidation, or depository receipts in respect thereof;

b. Shares of stock of any other corporation, or depository receipts in respect thereof, which shares of stock (or depository receipts in respect thereof) or depository receipts at the effective date of the merger or consolidation will be either listed on a national securities exchange or held of record by more than 2,000 holders;

c. Cash in lieu of fractional shares or fractional depository receipts described in the foregoing paragraphs (b)(2)a. and b. of this section; or

d. Any combination of the shares of stock, depository receipts and cash in lieu of fractional shares or fractional depository receipts described in the foregoing paragraphs (b)(2)a., b. and c. of this section.

(3) In the event all of the stock of a subsidiary Delaware corporation party to a merger effected under § 253 or § 267 of this title is not owned by the parent immediately prior to the merger, appraisal rights shall be available for the shares of the subsidiary Delaware corporation.

(4) [Repealed.]

(c) Any corporation may provide in its certificate of incorporation that appraisal rights under this section shall be available for the shares of any class or series of its stock as a result of an amendment to its certificate of incorporation, any merger or consolidation in which the corporation is a constituent corporation or the sale of all

or substantially all of the assets of the corporation. If the certificate of incorporation contains such a provision, the provisions of this section, including those set forth in subsections (d),(e), and (g) of this section, shall apply as nearly as is practicable.

(d) Appraisal rights shall be perfected as follows:

(1) If a proposed merger or consolidation for which appraisal rights are provided under this section is to be submitted for approval at a meeting of stockholders, the corporation, not less than 20 days prior to the meeting, shall notify each of its stockholders who was such on the record date for notice of such meeting (or such members who received notice in accordance with § 255(c) of this title) with respect to shares for which appraisal rights are available pursuant to subsection (b) or (c) of this section that appraisal rights are available for any or all of the shares of the constituent corporations, and shall include in such notice a copy of this section and, if 1 of the constituent corporations is a nonstock corporation, a copy of § 114 of this title. Each stockholder electing to demand the appraisal of such stockholder’s shares shall deliver to the corporation, before the taking of the vote on the merger or consolidation, a written demand for appraisal of such stockholder’s shares; provided that a demand may be delivered to the corporation by electronic transmission if directed to an information processing system (if any) expressly designated for that purpose in such notice. Such demand will be sufficient if it reasonably informs the corporation of the identity of the stockholder and that the stockholder intends thereby to demand the appraisal of such stockholder’s shares. A proxy or vote against the merger or consolidation shall not constitute such a demand. A stockholder electing to take such action must do so by a separate written demand as herein provided. Within 10 days after the effective date of such merger or consolidation, the surviving or resulting corporation shall notify each stockholder of each constituent corporation who has complied with this subsection and has not voted in favor of or consented to the merger or consolidation of the date that the merger or consolidation has become effective; or

(2) If the merger or consolidation was approved pursuant to § 228, § 251(h), § 253, or § 267 of this title, then either a constituent corporation before the effective date of the merger or consolidation or the surviving or resulting corporation within 10 days thereafter shall notify each of the holders of any class or series of stock of such constituent corporation who are entitled to appraisal rights of the approval of the merger or consolidation and that appraisal rights are available for any or all shares of such class or series of stock of such constituent corporation, and shall include in such notice a copy of this section and, if 1 of the constituent corporations is a nonstock corporation, a copy of § 114 of this title. Such notice may, and, if given on or after the effective date of the merger or consolidation, shall, also notify such stockholders of the effective date of the merger or consolidation. Any stockholder entitled to appraisal rights may, within 20 days after the date of giving such notice or, in the case of a merger approved pursuant to § 251(h) of this title, within the later of the consummation of the offer contemplated by § 251(h) of this title and 20 days after the date of giving such notice, demand in writing from the surviving or resulting corporation the appraisal of such holder’s shares; provided that a demand may be delivered to the corporation by electronic transmission if directed to an information processing system (if any) expressly designated for that purpose in such notice. Such demand will be sufficient if it reasonably informs the corporation of the identity of the stockholder and that the stockholder intends thereby to demand the appraisal of such holder’s shares. If such notice did not notify stockholders of the effective date of the merger or consolidation, either (i) each such constituent corporation shall send a second notice before the effective date of the merger or consolidation notifying each of the holders of any class or series of stock of such constituent corporation that are entitled to appraisal rights of the effective date of the merger or consolidation or (ii) the surviving or resulting corporation shall send such a second notice to all such holders on or within 10 days after such effective date; provided, however, that if such second notice is sent more than 20 days following the sending of the first notice or, in the case of a merger approved pursuant to § 251(h) of this title, later than the later of the consummation of the offer contemplated by § 251(h) of this title and 20 days following the sending of the first notice, such second notice need only be sent to each stockholder who is entitled to appraisal rights and who has demanded appraisal of such holder’s shares in accordance with this subsection. An affidavit of the secretary or assistant secretary or of the transfer agent of the corporation that is required to give either notice that such notice has been given shall, in the absence of fraud, be prima facie evidence of the facts stated therein. For purposes of determining the stockholders entitled to receive either notice, each constituent corporation may fix,

in advance, a record date that shall be not more than 10 days prior to the date the notice is given, provided, that if the notice is given on or after the effective date of the merger or consolidation, the record date shall be such effective date. If no record date is fixed and the notice is given prior to the effective date, the record date shall be the close of business on the day next preceding the day on which the notice is given.

(e) Within 120 days after the effective date of the merger or consolidation, the surviving or resulting corporation or any stockholder who has complied with subsections (a) and (d) of this section hereof and who is otherwise entitled to appraisal rights, may commence an appraisal proceeding by filing a petition in the Court of Chancery demanding a determination of the value of the stock of all such stockholders. Notwithstanding the foregoing, at any time within 60 days after the effective date of the merger or consolidation, any stockholder who has not commenced an appraisal proceeding or joined that proceeding as a named party shall have the right to withdraw such stockholder’s demand for appraisal and to accept the terms offered upon the merger or consolidation. Within 120 days after the effective date of the merger or consolidation, any stockholder who has complied with the requirements of subsections (a) and (d) of this section hereof, upon request given in writing (or by electronic transmission directed to an information processing system (if any) expressly designated for that purpose in the notice of appraisal), shall be entitled to receive from the corporation surviving the merger or resulting from the consolidation a statement setting forth the aggregate number of shares not voted in favor of the merger or consolidation (or, in the case of a merger approved pursuant to § 251(h) of this title, the aggregate number of shares (other than any excluded stock (as defined in § 251(h)(6)d. of this title)) that were the subject of, and were not tendered into, and accepted for purchase or exchange in, the offer referred to in § 251(h)(2)), and, in either case, with respect to which demands for appraisal have been received and the aggregate number of holders of such shares. Such statement shall be given to the stockholder within 10 days after such stockholder’s request for such a statement is received by the surviving or resulting corporation or within 10 days after expiration of the period for delivery of demands for appraisal under subsection (d) of this section hereof, whichever is later. Notwithstanding subsection (a) of this section, a person who is the beneficial owner of shares of such stock held either in a voting trust or by a nominee on behalf of such person may, in such person’s own name, file a petition or request from the corporation the statement described in this subsection.

(f) Upon the filing of any such petition by a stockholder, service of a copy thereof shall be made upon the surviving or resulting corporation, which shall within 20 days after such service file in the office of the Register in Chancery in which the petition was filed a duly verified list containing the names and addresses of all stockholders who have demanded payment for their shares and with whom agreements as to the value of their shares have not been reached by the surviving or resulting corporation. If the petition shall be filed by the surviving or resulting corporation, the petition shall be accompanied by such a duly verified list. The Register in Chancery, if so ordered by the Court, shall give notice of the time and place fixed for the hearing of such petition by registered or certified mail to the surviving or resulting corporation and to the stockholders shown on the list at the addresses therein stated. Such notice shall also be given by 1 or more publications at least 1 week before the day of the hearing, in a newspaper of general circulation published in the City of Wilmington, Delaware or such publication as the Court deems advisable. The forms of the notices by mail and by publication shall be approved by the Court, and the costs thereof shall be borne by the surviving or resulting corporation.

(g) At the hearing on such petition, the Court shall determine the stockholders who have complied with this section and who have become entitled to appraisal rights. The Court may require the stockholders who have demanded an appraisal for their shares and who hold stock represented by certificates to submit their certificates of stock to the Register in Chancery for notation thereon of the pendency of the appraisal proceedings; and if any stockholder fails to comply with such direction, the Court may dismiss the proceedings as to such stockholder. If immediately before the merger or consolidation the shares of the class or series of stock of the constituent corporation as to which appraisal rights are available were listed on a national securities exchange, the Court shall dismiss the proceedings as to all holders of such shares who are otherwise entitled to appraisal rights unless (1) the total number of shares entitled to appraisal exceeds 1% of the outstanding shares of the class or series eligible for appraisal, (2) the value of the consideration provided in the merger or consolidation for such total number of shares exceeds $1 million, or (3) the merger was approved pursuant to § 253 or § 267 of this title.

(h) After the Court determines the stockholders entitled to an appraisal, the appraisal proceeding shall be conducted in accordance with the rules of the Court of Chancery, including any rules specifically governing appraisal proceedings. Through such proceeding the Court shall determine the fair value of the shares exclusive of any element of value arising from the accomplishment or expectation of the merger or consolidation, together with interest, if any, to be paid upon the amount determined to be the fair value. In determining such fair value, the Court shall take into account all relevant factors. Unless the Court in its discretion determines otherwise for good cause shown, and except as provided in this subsection, interest from the effective date of the merger through the date of payment of the judgment shall be compounded quarterly and shall accrue at 5% over the Federal Reserve discount rate (including any surcharge) as established from time to time during the period between the effective date of the merger and the date of payment of the judgment. At any time before the entry of judgment in the proceedings, the surviving corporation may pay to each stockholder entitled to appraisal an amount in cash, in which case interest shall accrue thereafter as provided herein only upon the sum of (1) the difference, if any, between the amount so paid and the fair value of the shares as determined by the Court, and (2) interest theretofore accrued, unless paid at that time. Upon application by the surviving or resulting corporation or by any stockholder entitled to participate in the appraisal proceeding, the Court may, in its discretion, proceed to trial upon the appraisal prior to the final determination of the stockholders entitled to an appraisal. Any stockholder whose name appears on the list filed by the surviving or resulting corporation pursuant to subsection (f) of this section and who has submitted such stockholder’s certificates of stock to the Register in Chancery, if such is required, may participate fully in all proceedings until it is finally determined that such stockholder is not entitled to appraisal rights under this section.

(i) The Court shall direct the payment of the fair value of the shares, together with interest, if any, by the surviving or resulting corporation to the stockholders entitled thereto. Payment shall be so made to each such stockholder, in the case of holders of uncertificated stock forthwith, and the case of holders of shares represented by certificates upon the surrender to the corporation of the certificates representing such stock. The Court’s decree may be enforced as other decrees in the Court of Chancery may be enforced, whether such surviving or resulting corporation be a corporation of this State or of any state.

(j) The costs of the proceeding may be determined by the Court and taxed upon the parties as the Court deems equitable in the circumstances. Upon application of a stockholder, the Court may order all or a portion of the expenses incurred by any stockholder in connection with the appraisal proceeding, including, without limitation, reasonable attorney’s fees and the fees and expenses of experts, to be charged pro rata against the value of all the shares entitled to an appraisal.

(k) From and after the effective date of the merger or consolidation, no stockholder who has demanded appraisal rights as provided in subsection (d) of this section shall be entitled to vote such stock for any purpose or to receive payment of dividends or other distributions on the stock (except dividends or other distributions payable to stockholders of record at a date which is prior to the effective date of the merger or consolidation); provided, however, that if no petition for an appraisal shall be filed within the time provided in subsection (e) of this section, or if such stockholder shall deliver to the surviving or resulting corporation a written withdrawal of such stockholder’s demand for an appraisal and an acceptance of the merger or consolidation, either within 60 days after the effective date of the merger or consolidation as provided in subsection (e) of this section or thereafter with the written approval of the corporation, then the right of such stockholder to an appraisal shall cease. Notwithstanding the foregoing, no appraisal proceeding in the Court of Chancery shall be dismissed as to any stockholder without the approval of the Court, and such approval may be conditioned upon such terms as the Court deems just; provided, however that this provision shall not affect the right of any stockholder who has not commenced an appraisal proceeding or joined that proceeding as a named party to withdraw such stockholder’s demand for appraisal and to accept the terms offered upon the merger or consolidation within 60 days after the effective date of the merger or consolidation, as set forth in subsection (e) of this section.

(l) The shares of the surviving or resulting corporation to which the shares of such objecting stockholders would have been converted had they assented to the merger or consolidation shall have the status of authorized and unissued shares of the surviving or resulting corporation.

Annex G

VOTING AND SUPPORT AGREEMENT

THIS VOTING AND SUPPORT AGREEMENT (the “Agreement”), is dated as of October 20, 2020, by and among Pioneer Natural Resources Company, a Delaware corporation (“Parent”), and Q-Jagged Peak Energy Investment Partners, LLC (the “Holder”), as a stockholder of Parsley Energy, Inc., a Delaware corporation (the “Company”).

W I T N E S S E T H:

WHEREAS, Parent, the Company, Pearl First Merger Sub Inc., a Delaware corporation and a wholly-owned Subsidiary of Parent (“Merger Sub Inc.”), Pearl Second Merger Sub LLC, a Delaware limited liability company and a wholly-owned Subsidiary of Parent (“Merger Sub LLC”), Pearl Opco Merger Sub LLC, a Delaware limited liability company and a wholly-owned Subsidiary of Parent (“Opco Merger Sub LLC”), and Parsley Energy, LLC, a Delaware limited liability company (“Opco LLC”), are entering into an Agreement and Plan of Merger dated as of the date hereof (as the same may be amended or supplemented from time to time, the “Merger Agreement”) providing for, among other things, (i) the merger of Merger Sub Inc. with and into the Company, with the Company continuing as the surviving entity (the “Surviving Corporation”) (such merger, the “First Company Merger”), (ii) simultaneously with the First Company Merger, the merger of Opco Merger Sub LLC with and into Opco LLC, with Opco LLC continuing as the surviving entity (such merger, the “Opco Merger”), and (iii) immediately following the First Company Merger and the Opco Merger, the merger of the Surviving Corporation with and into Merger Sub LLC, with Merger Sub LLC continuing as the surviving entity (such merger, together with the First Company Merger and the Opco Merger, the “Mergers”), in each case, on the terms and subject to the conditions of the Merger Agreement;

WHEREAS, the Holder is the Beneficial Owner (as defined below) of 65,412,650 shares of Class A common stock, par value $0.01 per share, of the Company (the “Company Class A Common Stock”) (such shares of Company Class A Common Stock, the “Covered Securities”);

WHEREAS, concurrently with the execution and delivery of the Merger Agreement, and as a condition and an inducement to Parent entering into the Merger Agreement, the Holder is entering into this Agreement with respect to the Covered Securities; and

WHEREAS, Parent desires that the Holder agree, and the Holder is willing to agree, subject to the limitations herein, not to Transfer (as defined below) any of its Covered Securities, and to vote its Covered Securities in a manner so as to facilitate consummation of the Mergers and the other transactions contemplated by the Merger Agreement.

NOW, THEREFORE, in consideration of the mutual covenants, representations, warranties and agreements contained herein, and intending to be legally bound hereby, the parties agree as follows:

ARTICLE I

GENERAL

Section 1.1 Definitions. This Agreement is one of the “Voting Agreements” as defined in the Merger Agreement. Capitalized terms used but not defined herein shall have the meanings set forth in the Merger Agreement.

Beneficially Own” or “Beneficial Ownership” has the meaning assigned to such term in Rule 13d-3 under the Exchange Act, and a Person’s beneficial ownership of securities shall be calculated in accordance with the provisions of such Rule (in each case, irrespective of whether or not such Rule is actually applicable in such circumstance). For the avoidance of doubt, Beneficially Own and Beneficial Ownership shall also include record ownership of securities.

Beneficial Owners” shall mean Persons who Beneficially Own the referenced securities.

Permitted Lien” means (a) a collateral assignment or similar agreement, pledging or granting a Lien in Covered Securities or a Person who directly or indirectly holds Covered Securities to a nationally recognized reputable banking organization in connection with any instrument governing Indebtedness of any Holder or any of its Affiliates, in each case as in existence on the date of this Agreement, and (b) transfer restrictions of general applicability as may be provided under the Securities Act or other applicable securities Laws or as set forth in the Organizational Documents of the Holder or any of its Affiliates.

Transfer” means (a) any direct or indirect offer, sale, lease, assignment, encumbrance, loan, pledge, grant of a security interest, hypothecation, disposition or other similar transfer (by operation of law or otherwise), either voluntary or involuntary, or entry into any contract, option or other arrangement or understanding with respect to any offer, sale, lease, assignment, encumbrance, loan, pledge, hypothecation, disposition or other transfer (by operation of law or otherwise), of any Covered Securities owned by the Holder (whether beneficially or of record), including in each case through the Transfer of any Person or any interest in any Person, or (b) in respect of any capital stock or interest in any capital stock, to enter into any swap or any other agreement, transaction or series of transactions that results in an amount of Covered Securities subject to Article III that is less than the amount of Covered Securities subject to Article III as of the date hereof.

ARTICLE II

AGREEMENT TO RETAIN COVERED SECURITIES

2.1 Transfer and Encumbrance of Covered Securities.

(a) From the date hereof until the earlier of the Termination Date (as defined below) and the Effective Time, the Holder shall not, with respect to any Covered Securities Beneficially Owned by the Holder, (i) Transfer any such Covered Securities or (ii) deposit any such Covered Securities into a voting trust or enter into a voting agreement or arrangement with respect to such Covered Securities or grant any proxy (except as otherwise provided herein) or power of attorney with respect thereto.

(b) Notwithstanding Section 2.1(a), the Holder may: (i) Transfer Covered Securities to one or more Affiliates (A) who is a party to an agreement with Parent with substantially similar terms as this Agreement or (B) if, as a condition to such Transfer, the recipient agrees in writing to be bound by this Agreement and delivers a copy of such executed written agreement to Parent prior to the consummation of such Transfer or (ii) Transfer Covered Securities with the prior written consent of Parent (which consent may be granted or withheld by Parent in its sole discretion).

(c) Nothing in this Agreement shall prohibit direct or indirect transfers of equity or other interests in a Holder to an Affiliate of the Holder.

2.2 Additional Purchases; Adjustments. The Holder agrees that any additional shares of capital stock or other equity of the Company or Opco LLC that the Holder purchases or otherwise acquires or with respect to which the Holder otherwise acquires voting power after the execution of this Agreement and prior to the earlier of the Termination Date and the Effective Time shall be subject to the terms and conditions of this Agreement to the same extent as if they constituted the Covered Securities as of the date hereof (and shall be deemed “Covered Securities” for all purposes hereof), and the Holder shall promptly notify Parent of the existence of any such after

acquired Covered Securities. In the event of any stock split, stock dividend, merger, reorganization, recapitalization, reclassification, combination, exchange of shares or the like of the capital stock of the Company or any similar transaction with respect to the equity of Opco LLC, as applicable, affecting the Covered Securities, the terms of this Agreement shall apply to the resulting securities.

2.3 Unpermitted Transfers; Involuntary Transfers. Any Transfer or attempted Transfer of any Covered Securities in violation of this Article II shall, to the fullest extent permitted by Law, be null and void ab initio, with no further action required by or on behalf of Parent, the Company or Opco LLC. In furtherance of the foregoing, the Holder hereby agrees to authorize and instruct the Company or Opco LLC, as applicable, to instruct its transfer agent to enter a stop transfer order with respect to all of the Covered Securities. If any involuntary Transfer of any of the Holder’s Covered Securities shall occur, the transferee (which term, as used herein, shall include any and all transferees and subsequent transferees of the initial transferee) shall take and hold such Covered Securities subject to all of the restrictions, liabilities and rights under this Agreement, which shall continue in full force and effect until valid termination of this Agreement.

ARTICLE III

AGREEMENT TO VOTE

3.1 Agreement to Vote. Prior to the earlier of the Termination Date and the Effective Time, the Holder irrevocably and unconditionally agrees that such Holder shall, at any meeting (whether annual or special and whether or not an adjourned or postponed meeting), however called, of the stockholders of the Company or at any meeting or with respect to any written consent of the Members (as defined in the Opco LLC Agreement) of Opco LLC, as applicable, appear at such meeting or otherwise cause the Covered Securities to be counted as present thereat for purpose of establishing a quorum and vote, or cause to be voted at such meeting, all Covered Securities:

(a) in favor of adoption of the Merger Agreement and approving any other matters necessary for consummation of the transactions contemplated by the Merger Agreement, including the Mergers (the “Transaction Matters”); and

(b) against (i) any Acquisition Proposal or any other transaction, proposal, agreement or action made in opposition to adoption of the Merger Agreement or in competition or inconsistent with the Mergers or matters contemplated by the Merger Agreement and (ii) any action that could reasonably be expected to impede, interfere with, delay, discourage, postpone or adversely affect the Mergers or any of the other transactions contemplated by the Merger Agreement or this Agreement or any transaction that results in a breach in any material respect of any covenant, representation or warranty or other obligation or agreement of the Company or any of its Subsidiaries (including Opco LLC) under the Merger Agreement.

Any attempt by the Holder to vote, consent or express dissent with respect to (or otherwise to utilize the voting power of) the Covered Securities in contravention of this Section 3.1 shall be null and void ab initio. If the Holder is the Beneficial Owner, but not the holder of record, of any Covered Securities, the Holder agrees to take all actions necessary to cause the holder of record and any nominees to vote (or exercise a consent with respect to) all of such Covered Securities in accordance with this Section 3.1.

Notwithstanding anything herein to the contrary in this Agreement, this Section 3.1 shall not require the Holder to be present (in person or by proxy) or vote (or cause to be voted), any of the Covered Securities to amend, modify or waive any provision of the Merger Agreement in a manner that reduces the amount or changes the form of the Merger Consideration payable or imposes any material restrictions on or additional material conditions on the payment of the Merger Consideration or extends the Outside Date. Notwithstanding anything to the contrary in this Agreement, the Holder shall remain free to vote (or execute consents or proxies with respect to) the Covered Securities with respect to any matter other than as set forth in Section 3.1(a) and Section 3.1(b) in any manner the Holder deems appropriate, including in connection with the election of directors of the Company.

3.2Proxy. The Holder hereby irrevocably appoints as its proxy and attorney-in-fact, Parent, the executive officers of Parent and any person designated in writing by Parent, each of them individually, with full power of substitution and resubstitution, to consent to or vote the Covered Securities as indicated in Section 3.1 above. The Holder intends this proxy to be irrevocable and unconditional during the term of this Agreement prior to the earlier of the Termination Date and the Effective Time and coupled with an interest and will take such further action or execute such other instruments as may be reasonably necessary to effect the intent of this proxy, and hereby revokes any proxy previously granted by the Holder with respect to the Covered Securities (and the Holder hereby represents that any such proxy is revocable). The proxy granted by the Holder shall be automatically revoked upon the earlier of the Termination Date and the Effective Time and Parent may further terminate this proxy at any time at its sole election by written notice provided to the Holder.

ARTICLE IV

ADDITIONAL AGREEMENTS

4.1 Waiver of Appraisal Rights; Litigation. Unless (a) this Agreement is terminated in accordance with its terms or pursuant to Section 6.5 or (b) the Merger Agreement is amended in a manner that reduces the amount or changes the form of the Merger Consideration payable or imposes any material restrictions on or additional material conditions on the payment of the Merger Consideration or extends the Outside Date, in each case without the consent of the Holder, to the fullest extent permitted by Law, the Holder hereby irrevocably and unconditionally waives, and agrees not to exercise, any rights of appraisal (including under Section 262 of the DGCL) relating to the Mergers that the Holder may have by virtue of the ownership of any Covered Securities. The Holder further agrees not to commence, join in, and agrees to take all actions necessary to opt out of any class in any class action with respect to, any claim, derivative or otherwise, against Parent, Merger Sub Inc., Merger Sub LLC, Opco Merger Sub LLC, Opco LLC, or the Company or any of their respective Affiliates and each of their successors or directors relating to the negotiation, execution or delivery of this Agreement or the Merger Agreement or the consummation of the transactions contemplated hereby or thereby, including any claim (a) challenging the validity of, or seeking to enjoin the operation of, any provision of this Agreement or the Merger Agreement (including any claim seeking to enjoin or delay the Closing) or (b) alleging a breach of any fiduciary duty of the Company Board in connection with the negotiation and entry into the Merger Agreement or the transactions contemplated thereby, and hereby irrevocably waives any claim or rights whatsoever with respect to any of the foregoing.

4.2 Further Assurances. The Holder agrees that, during the term of this Agreement, the Holder shall and shall cause such Holder’s controlled Affiliates to take no action that would reasonably be expected to adversely affect or delay the ability to perform the Holder’s respective covenants and agreements under this Agreement.

4.3 Fiduciary Duties. The Holder is entering into this Agreement solely in such Holder’s capacity as the record or Beneficial Owner of the Covered Securities and nothing herein is intended to or shall limit or affect any actions taken by the Holder or any of the Holder’s designees, as applicable, serving in his or her capacity as a director of the Company (or a Subsidiary of the Company). The taking of any actions (or failures to act) by the Holder or the Holder’s designees, as applicable, serving as a director of the Company or a Subsidiary of the Company (in such capacity as a director) shall not be deemed to constitute a breach of this Agreement.

ARTICLE V

REPRESENTATIONS AND WARRANTIES OF HOLDER

5.1 Representations and Warranties. The Holder hereby represents and warrants as follows:

(a) Ownership. The Holder has, with respect to the Covered Securities, and at all times during the term of this Agreement will continue to have, Beneficial Ownership of, good and valid title to and full and exclusive

power to vote, issue instructions with respect to the matters set forth in Article III, agree to all of the matters set forth in this Agreement and to Transfer the Covered Securities. Other than the 20,374 unvested Restricted Stock Units and 3,589 shares of Company Class A Common Stock issued upon the vesting of Restricted Stock Units held for the benefit of the Holder, the Covered Securities constitute all of the shares of Company Class A Common Stock owned of record or Beneficially Owned by the Holder as of the date hereof, and all of the Covered Securities are held by the Holder free and clear of all Liens, other than any Permitted Liens. Other than this Agreement and any Permitted Liens, (i) there are no agreements or arrangements of any kind, contingent or otherwise, to which the Holder is a party obligating the Holder to Transfer or cause to be Transferred to any person any of the Covered Securities and (ii) no Person has any contractual or other right or obligation to purchase or otherwise acquire any of the Covered Securities.

(b) Organization; Authority. The Holder is an entity duly organized, validly existing and in good standing under the Laws of its jurisdiction of formation. The Holder has full power and authority and is duly authorized to make, enter into and carry out the terms of this Agreement and to perform the Holder’s obligations hereunder. This Agreement has been duly and validly executed and delivered by the Holder and (assuming due authorization, execution and delivery by Parent) constitutes a valid and binding agreement of the Holder, enforceable against the Holder in accordance with its terms (except in all cases as such enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar Laws affecting creditors’ rights generally and by general principles of equity (regardless of whether considered in a proceeding in equity or at law)), and no other action is necessary to authorize the execution and delivery by the Holder or the performance of the Holder’s obligations hereunder.

(c) No Violation. The execution, delivery and performance by the Holder of this Agreement will not (i) violate any provision of any Law applicable to the Holder; (ii) violate any order, judgment or decree applicable to the Holder or any of its Affiliates; or (iii) conflict with, or result in a breach or default under, any agreement or instrument to which the Holder or any of its Affiliates is a party or any term or condition of its certificate of incorporation, bylaws, certificate of formation, limited liability company agreement or comparable organizational documents, as applicable, except where such conflict, breach or default would not reasonably be expected to, individually or in the aggregate, have an adverse effect on the Holder’s ability to satisfy the Holder’s obligations hereunder.

(d) Consents and Approvals. The execution and delivery by the Holder of this Agreement, and the performance of the Holder’s obligations hereunder, do not require the Holder or any of its Affiliates to obtain any consent, approval, authorization or permit of, or to make any filing with or notification to, any person or Governmental Entity, except such filings and authorizations as may be required under the Exchange Act.

(e) Absence of Litigation. To the knowledge of the Holder, as of the date hereof, there is no action, suit, investigation, complaint or other proceeding pending against, or threatened in writing against the Holder that would prevent the performance by the Holder of its obligations under this Agreement on a timely basis.

(f) Absence of Other Voting Agreements. Except as contemplated by this Agreement, the Holder (i) has not entered into, and shall not enter into at any time prior to the earlier of the Termination Date and the Effective Time, any voting agreement or voting trust with respect to the Covered Securities and (ii) has not granted, and shall not grant at any time prior to earlier of the Termination Date and the Effective Time, a proxy or power of attorney with respect to the Covered Securities, in either case, which is inconsistent with the Holder’s obligations pursuant to this Agreement. Other than with respect to any Permitted Liens, none of the Covered Securities are subject to any pledge agreement pursuant to which the Holder does not retain sole and exclusive voting rights with respect to the Covered Securities subject to such pledge agreement at least until the occurrence of an event of default under the related debt instrument.

ARTICLE VI

MISCELLANEOUS

6.1 No Solicitation. The Holder agrees that such Holder shall not, and shall not permit or authorize any of such Holder’s controlled Affiliates and shall use commercially reasonable efforts to not permit or authorize any of such Holder’s or such Holder’s controlled Affiliates’ Representatives to, directly or indirectly, take any of the actions listed in clauses (i) or (ii) of Section 5.2(a) of the Merger Agreement (without giving effect to any amendment or modification of such clauses after the date hereof). The Holder shall, and shall cause such Holder’s controlled Affiliates and shall use commercially reasonable efforts to cause such Holder’s and such Holder’s controlled Affiliates’ Representatives to, immediately cease and cause to be terminated all existing discussions and negotiations with any Person conducted heretofore with respect to any Acquisition Proposal or potential Acquisition Proposal. In addition, the Holder agrees to be subject to Section 5.2(e) of the Merger Agreement (without giving effect to any amendment or modification of such clauses after the date hereof) as if the Holder were the “Company” thereunder. Notwithstanding the foregoing, to the extent the Company complies with its obligations under Section 5.2 of the Merger Agreement and participates in discussions or negotiations with a Person regarding an Acquisition Proposal, the Holder or any of such Holder’s controlled Affiliates and/or such Holder’s and such Holder’s controlled Affiliates’ Representatives may engage in discussions or negotiations with such Person to the extent that the Company can act under Section 5.2 of the Merger Agreement.

6.2 Non-Recourse. This Agreement may only be enforced against, and any claim or cause of action based upon, arising out of, or related to this Agreement or the transactions contemplated by this Agreement may only be brought against, the entities that are expressly named as parties hereto and then only with respect to the specific obligations set forth herein with respect to such party. Except to the extent a named party to this Agreement (and then only to the extent of the specific obligations undertaken by such named party in this Agreement and not otherwise), no past, present or future director, manager, officer, employee, incorporator, member, partner, equityholder, Affiliate, agent, attorney, advisor, consultant or Representative or Affiliate of any of the foregoing (each, a “Holder Related Party”) shall have any liability (whether in contract, tort, equity or otherwise) for any one or more of the representations, warranties, covenants, agreements or other obligations or liabilities of or made under this Agreement or in respect of any oral representations made or alleged to have been made in connection herewith (whether for indemnification or otherwise) or of or for any claim based on, arising out of, or related to this Agreement or the transactions contemplated by this Agreement. Parent acknowledges that no Holder nor any Holder Related Party has made, and Parent has not relied upon, any representation related to the matters contemplated by this Agreement, except as set forth in Article V.

6.3 No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Parent any direct or indirect ownership or incidence of ownership of or with respect to the Covered Securities. All rights, ownership and economic benefits of and relating to the Covered Securities shall remain vested in and belong to the Holder, and Parent shall not have any authority to manage, direct, restrict, regulate, govern or administer any of the policies or operations of the Company or Opco LLC or exercise any power or authority to direct the Holder in the voting or disposition of any Covered Securities, except as otherwise expressly provided herein.

6.4 Disclosure. The Holder consents to and authorizes the publication and disclosure by the Company and Parent of the Holder’s identity and holding of Covered Securities, and the terms of this Agreement (including, for avoidance of doubt, the disclosure of this Agreement), in any press release, the Form S-4, the Joint Proxy Statement and any other disclosure document required in connection with this Agreement, the Merger Agreement, the Mergers and the transactions contemplated by the Merger Agreement.

6.5 Termination. This Agreement shall terminate upon the date the Merger Agreement is validly terminated in accordance with its terms (such date, the “Termination Date”). Neither the provisions of this Section 6.5 nor the termination of this Agreement shall relieve (x) any party hereto from any liability of such party to any other party incurred prior to such termination or (y) any party hereto from any liability to any other party arising out of or in connection with a breach of this Agreement. Nothing in the Merger Agreement shall relieve the Holder from any liability arising out of or in connection with a breach of this Agreement.

6.6 Amendment. This Agreement may not be amended, modified or supplemented in any manner, whether by course of conduct or otherwise, except by an instrument in writing specifically designated as an amendment hereto, signed on behalf of each party hereto.

6.7 Reliance. The Holder understands and acknowledges that Parent is entering into the Merger Agreement in reliance upon the Holder’s execution and delivery of this Agreement.

6.8 Extension; Waiver. The parties hereto may, to the extent permitted by applicable Law:

(a) extend the time for the performance of any of the obligations or acts of the other party hereunder;

(b) waive any inaccuracies in the representations and warranties of the other party contained herein or in any document delivered pursuant hereto; or

(c) waive compliance with any of the agreements or conditions of the other party contained herein;

provided,however, that, in each case, such waiver is made in writing and signed by the party (or parties) against whom the waiver is to be effective.

Notwithstanding the foregoing, no failure or delay by Parent in exercising any right hereunder shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise of any other right hereunder. No agreement on the part of a party hereto to any such extension or waiver shall be valid unless set forth in an instrument in writing signed on behalf of such party. No waiver by any of the parties hereto of any default, misrepresentation or breach of representation, warranty, covenant or other agreement hereunder, whether intentional or not, shall be deemed to extend to any prior or subsequent default, misrepresentation or breach or affect in any way any rights arising by virtue of any prior or subsequent such occurrence.

6.9 Expenses. All fees and expenses incurred in connection with this Agreement and the transactions contemplated hereby shall be paid by the party incurring such fees or expenses, whether or not the Mergers are consummated.

6.10 Notices. All notices and other communications hereunder shall be in writing and shall be deemed duly given (a) on the date of delivery if delivered personally, or if by e mail, upon written confirmation of receipt by e mail or otherwise; provided, that each notice party shall use reasonable best efforts to confirm receipt of any such email correspondence promptly upon receipt of such request, (b) on the first Business Day following the date of dispatch if delivered utilizing a next-day service by a recognized next-day courier or (c) on the earlier of confirmed receipt or the fifth Business Day following the date of mailing if delivered by registered or certified mail, return receipt requested, postage prepaid. All notices hereunder shall be delivered to the addresses set forth below, or pursuant to such other instructions as may be designated in writing by the party to receive such notice:

if to the Holder, to:

Q-Jagged Peak Energy Investment Partners, LLC

800 Capitol St, Suite 3600

Houston, Texas 77002

Attention: General Counsel

E-mail: generalcounsel@quantumep.com

With a copy (which shall not constitute notice) to:

Sidley Austin LLP

1000 Louisiana Street, Suite 5900

Houston, Texas 77002

Attention: George J. Vlahakos

E-mail: gvlahakos@sidley.com

and if to Parent, to:

Pioneer Natural Resources Company

777 Hidden Ridge

Irving, Texas 75038

Attention: Mark H. Kleinman

E-mail: mark.kleinman@pxd.com

With a copy (which shall not constitute notice) to:

Gibson, Dunn & Crutcher LLP

2001 Ross Avenue, Suite 2100

Dallas, Texas 75201

Attention: Jeffrey A. Chapman; Tull R. Florey

E-mail: jchapman@gibsondunn.com; tflorey@gibsondunn.com

6.11 Interpretation. When a reference is made in this Agreement to a Section or Article, such reference shall be to a Section or Article of this Agreement unless otherwise indicated. The words “this Section,” “this subsection” and words of similar import, refer only to the Sections or subsections hereof in which such words occur. The headings contained in this Agreement are for convenience of reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. All words used in this Agreement will be construed to be of such gender or number as the circumstances require. The word “including” and words of similar import when used in this Agreement will mean “including, without limitation,” unless otherwise specified. The words “hereof,” “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to the Agreement as a whole and not to any particular provision in this Agreement. The term “or” is not exclusive. The word “will” shall be construed to have the same meaning and effect as the word “shall. The word “extent” in the phrase “to the extent” shall mean the degree to which a subject or other thing extends and such phrase shall not mean simply “if.” References to “days” mean calendar days; when calculating the period of time within which, or following which, any act is to be done or step taken pursuant to this Agreement, the date that is the reference day in calculating such period shall be excluded and if the last day of the period is a non-Business Day, the period in question shall end on the next Business Day or if any action must be taken hereunder on or by a day that is not a Business Day, then such action may be validly taken on or by the next day that is a Business Day. References to an “Affiliate” of any Person mean any other Person that directly or indirectly, through one or more intermediaries, controls, is controlled by, or is under common control with, such first Person; provided, however, that solely for purposes of this Agreement, notwithstanding anything to the contrary set forth herein, neither the Company nor any of its Subsidiaries shall be deemed to be an Affiliate of the Holder; provided, further, that, for the avoidance of doubt, (x) any member of the Holder shall be deemed an Affiliate of the Holder, (y) an Affiliate of the Holder shall include any investment fund, vehicle or holding company of which the Holder or an Affiliate thereof serves as the general partner, managing member or discretionary manager or advisor, and (z) notwithstanding the foregoing, an Affiliate of the Holder shall not include any portfolio company or other investment of the Holder or any Affiliate of the Holder.

6.12 No Presumption Against Drafting Party. Each of the parties hereto acknowledges that each party to this Agreement has been represented by counsel in connection with this Agreement and the transactions contemplated hereby. Accordingly, any rule of Law or any legal decision that would require interpretation of any claimed ambiguities in this Agreement against the drafting party has no application and is expressly waived.

6.13 Counterparts. This Agreement may be executed in two or more counterparts, all of which shall be considered one and the same instrument and shall become effective when one or more counterparts have been signed by each of the parties hereto and delivered to the other party.

6.14 No Partnership, Agency or Joint Venture. This Agreement is intended to create, and creates, a contractual relationship and is not intended to create, and does not create, any agency, partnership, joint venture,

any like relationship between the parties hereto or a presumption that the parties hereto are in any way acting in concert or as a group with respect to the obligations or the transactions contemplated by this Agreement.

6.15 No Third-Party Beneficiaries. Nothing in this Agreement, express or implied, is intended to or shall confer upon any Person other than the parties hereto and their respective successors and permitted assigns any legal or equitable right, benefit or remedy of any nature under or by reason of this Agreement.

6.16 Entire Agreement. This Agreement, the Merger Agreement, the Company Disclosure Letter, the Parent Disclosure Letter, the TRA Amendment and the Confidentiality Agreement constitute the entire agreement, and supersede all prior written agreements, arrangements, communications and understandings and all prior and contemporaneous oral agreements, arrangements, communications and understandings among the parties hereto with respect to the subject matter hereof and thereof.

6.17 Governing Law; Venue; Waiver of Jury Trial.

(a) This Agreement and all disputes or controversies arising out of or relating to this Agreement or the transactions contemplated hereby shall be governed by, and construed in accordance with, the internal Laws of the State of Delaware, without regard to the Laws of any other jurisdiction that might be applied because of the conflicts of Laws principles of the State of Delaware.

(b) Each of the parties hereto irrevocably agrees that any legal action or proceeding arising out of or relating to this Agreement brought by any party or its affiliates)Affiliates against any other party or its Affiliates shall be brought and determined in the Court of Chancery of the State of Delaware, provided that if jurisdiction is not then available in the Court of Chancery of the State of Delaware, then any such legal action or proceeding may be brought in any federal court located in the State of Delaware. Each of the parties hereto hereby irrevocably submits to the jurisdiction of the aforesaid courts for itself and with respect to its property, generally and unconditionally, with regard to any such action or proceeding arising out of or relating to this Agreement and the transactions contemplated hereby. Each of the parties hereto agrees not to commence any action, suit or proceeding relating thereto except in the courts described above in Delaware, other than actions in any court of competent jurisdiction to enforce any judgment, decree or award rendered by any such court in Delaware as described herein. Each of the parties hereto further agrees that notice as provided herein shall constitute sufficient service of process, and the parties further waive any argument that such service is insufficient. Each of the parties hereto hereby irrevocably and unconditionally waives, and agrees not to assert, by way of motion or as a defense, counterclaim or otherwise, in any action or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby, (i) any claim that it is not personally subject to the jurisdiction of the courts in Delaware as described herein for any reason, (ii) that it or its property is exempt or immune from jurisdiction of any such court or from any legal process commenced in such courts (whether through service of notice, attachment prior to judgment, attachment in aid of execution of judgment, execution of judgment or otherwise) and (iii) that (A) the suit, action or proceeding in any such court is brought in an inconvenient forum, (B) the venue of such suit, action or proceeding is improper or (C) this Agreement, or the subject matter hereof, may not be enforced in or by such courts.

(c) EACH OF THE PARTIES TO THIS AGREEMENT HEREBY IRREVOCABLY WAIVES ALL RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

6.18 Assignment. Neither this Agreement nor any of the rights, interests or obligations under this Agreement may be assigned or delegated, in whole or in part, by operation of law or otherwise, by either party without the prior written consent of the other party, and any such assignment without such prior written consent shall be null and void; provided, however, that Parent may assign all or any of its rights and obligations hereunder to any direct or indirect Subsidiary of Parent; providedfurther, that no assignment shall limit the assignor’s obligations hereunder. Subject to the preceding sentence and except as set forth in Article II, this Agreement will be binding upon, inure to the benefit of, and be enforceable by, the parties and their respective successors and assigns.

6.19 Specific Performance. The parties hereto agree that irreparable damage would occur in the event that the parties do not perform the provisions of this Agreement in accordance with its terms or otherwise breach such provisions. Accordingly, prior to any termination of this Agreement pursuant to Section 6.5, the parties hereto acknowledge and agree that each party shall be entitled to an injunction, specific performance and other equitable relief to prevent breaches of this Agreement and to enforce specifically the terms and provisions hereof in the Court of Chancery of the State of Delaware, provided, that if jurisdiction is not then available in the Court of Chancery of the State of Delaware, then in any federal court located in the State of Delaware, this being in addition to any other remedy to which such party is entitled at law or in equity. Each party hereto accordingly agrees (a) the non-breaching party will be entitled to injunctive and other equitable relief, without proof of actual damages; and (b) the alleged breaching party will not raise any objections to the availability of the equitable remedy of specific performance to prevent or restrain breaches or threatened breaches of, or to enforce compliance with, the covenants and obligations of such party under this Agreement and will not plead in defense thereto that there are adequate remedies at Law, all in accordance with the terms of this Section 6.20. Each party hereto further agrees that no other party or any other Person shall be required to obtain, furnish or post any bond or similar instrument in connection with or as a condition to obtaining any remedy referred to in this Section 6.20, and each party irrevocably waives any right it may have to require the obtaining, furnishing or posting of any such bond or similar instrument.

6.20 Severability. Whenever possible, each provision or portion of any provision of this Agreement shall be interpreted in such manner as to be effective and valid under applicable Law, but if any provision or portion of any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable Law or rule in any jurisdiction, such invalidity, illegality or unenforceability shall not affect any other provision or portion of any provision in such jurisdiction, and this Agreement shall be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable provision or portion of any provision had never been contained herein.

6.21 Delivery by Facsimile or Electronic Transmission. This Agreement may be executed by facsimile or .pdf signature and a facsimile or .pdf signature shall constitute an original for all purposes.

[Signature Page Follows]

IN WITNESS WHEREOF, the parties hereto, intending to be legally bound hereby, have executed or caused this Agreement to be executed in counterparts, all as of the day and year first above written.

 

Very truly yours,
EVERCORE GROUP L.L.C.PIONEER NATURAL RESOURCES COMPANY
By: 

/s/ Raymond B. Strong IIIRichard P. Dealy

Name:Richard P. Dealy
Title:Executive Vice President and Chief Financial Officer

HOLDER:
Q-JAGGED PEAK ENERGY INVESTMENT PARTNERS, LLC
By:Raymond B. Strong

/s/ S. Wil VanLoh, Jr.

Name:S. Wil VanLoh, Jr.
Title:Authorized Person

Annex H

VOTING AND SUPPORT AGREEMENT

THIS VOTING AND SUPPORT AGREEMENT (the “Agreement”), is dated as of October 20, 2020, by and among Pioneer Natural Resources Company, a Delaware corporation (“Parent”), and Bryan Sheffield (the “Holder”), as a stockholder of Parsley Energy, Inc., a Delaware corporation (the “Company”).

W I T N E S S E T H:

WHEREAS, Parent, the Company, Pearl First Merger Sub Inc., a Delaware corporation and a wholly-owned Subsidiary of Parent (“Merger Sub Inc.”), Pearl Second Merger Sub LLC, a Delaware limited liability company and a wholly-owned Subsidiary of Parent (“Merger Sub LLC”), Pearl Opco Merger Sub LLC, a Delaware limited liability company and a wholly-owned Subsidiary of Parent (“Opco Merger Sub LLC”), and Parsley Energy, LLC, a Delaware limited liability company (“Opco LLC”), are entering into an Agreement and Plan of Merger dated as of the date hereof (as the same may be amended or supplemented from time to time, the “Merger Agreement”) providing for, among other things, (i) the merger of Merger Sub Inc. with and into the Company, with the Company continuing as the surviving entity (the “Surviving Corporation”) (such merger, the “First Company Merger”), (ii) simultaneously with the First Company Merger, the merger of Opco Merger Sub LLC with and into Opco LLC, with Opco LLC continuing as the surviving entity (such merger, the “Opco Merger”), and (iii) immediately following the First Company Merger and the Opco Merger, the merger of the Surviving Corporation with and into Merger Sub LLC, with Merger Sub LLC continuing as the surviving entity (such merger, together with the First Company Merger and the Opco Merger, the “Mergers”), in each case, on the terms and subject to the conditions of the Merger Agreement;

WHEREAS, the Holder is the Beneficial Owner (as defined below) of 10,129,559 shares of Class A common stock, par value $0.01 per share, of the Company (the “Company Class A Common Stock”), 21,198,751 shares of Class B common stock, par value $0.01 per share, of the Company (the “Company Class B Common Stock”) and 21,198,751 Units (as defined in the Fourth Amended and Restated Limited Liability Company Agreement of Opco LLC, dated as of July 22, 2019) (the “Opco LLC Units”) (such shares of Company Class A Common Stock, Company Class B Common Stock and Opco LLC Units, the “Covered Securities”);

WHEREAS, concurrently with the execution and delivery of the Merger Agreement, and as a condition and an inducement to Parent entering into the Merger Agreement, the Holder is entering into this Agreement with respect to the Covered Securities;

WHEREAS, Parent desires that the Holder agree, and the Holder is willing to agree, subject to the limitations herein, not to Transfer (as defined below) any of its Covered Securities, and to vote its Covered Securities in a manner so as to facilitate consummation of the Mergers and the other transactions contemplated by the Merger Agreement; and

WHEREAS, Parent desires that the Holder agree, and the Holder is willing to agree, subject to the limitations herein, not to transfer or take other certain specified actions with respect to any of the Lock-Up Shares (as defined below) during the Lock-Up Period (as defined below).

NOW, THEREFORE, in consideration of the mutual covenants, representations, warranties and agreements contained herein, and intending to be legally bound hereby, the parties agree as follows:

ARTICLE I

GENERAL

Section 1.1 Definitions. This Agreement is one of the “Voting Agreements” as defined in the Merger Agreement. Capitalized terms used but not defined herein shall have the meanings set forth in the Merger Agreement.

Beneficially Own” or “Beneficial Ownership” has the meaning assigned to such term in Rule 13d-3 under the Exchange Act, and a Person’s beneficial ownership of securities shall be calculated in accordance with the provisions of such Rule (in each case, irrespective of whether or not such Rule is actually applicable in such circumstance). For the avoidance of doubt, Beneficially Own and Beneficial Ownership shall also include record ownership of securities.

Beneficial Owners” shall mean Persons who Beneficially Own the referenced securities.

Permitted Lien” means (a) a collateral assignment or similar agreement, pledging or granting a Lien in Covered Securities or a Person who directly or indirectly holds Covered Securities to a nationally recognized reputable banking organization in connection with any instrument governing Indebtedness of any Holder or any of its Affiliates, in each case as in existence on the date of this Agreement, and (b) transfer restrictions of general applicability as may be provided under the Securities Act or other applicable securities Laws or as set forth in the Organizational Documents of the Holder or any of its Affiliates.

Transfer” means (a) any direct or indirect offer, sale, lease, assignment, encumbrance, loan, pledge, grant of a security interest, hypothecation, disposition or other similar transfer (by operation of law or otherwise), either voluntary or involuntary, or entry into any contract, option or other arrangement or understanding with respect to any offer, sale, lease, assignment, encumbrance, loan, pledge, hypothecation, disposition or other transfer (by operation of law or otherwise), of any Covered Securities owned by the Holder (whether beneficially or of record), including in each case through the Transfer of any Person or any interest in any Person, or (b) in respect of any capital stock or interest in any capital stock, to enter into any swap or any other agreement, transaction or series of transactions that results in an amount of Covered Securities subject to Article III that is less than the amount of Covered Securities subject to Article III as of the date hereof; but in each case excluding (i) the exchange of Opco LLC Units (together with the same number of shares of Company Class B Common Stock) for shares of Company Class A Common Stock and (ii) (A) hedging and derivative transactions and (B) pledges and other security interest grants, in the case of any of the foregoing in this clause (ii), if such transactions are with one or more counterparties that are nationally recognized reputable banking organizations and solely to the extent (I) such transactions are effected pursuant to agreements or arrangements in existence as of the date of this Agreement, (II) such transactions do not have the intention or purpose of circumventing the transfer or other restrictions contained in this Agreement and (III) such transactions would not reasonably be expected to impair the ability of the Holder to perform its obligations hereunder or to consummate the transactions contemplated hereby.

ARTICLE II

AGREEMENT TO RETAIN COVERED SECURITIES

2.1 Transfer and Encumbrance of Covered Securities.

(a) From the date hereof until the earlier of the Termination Date (as defined below) and the Effective Time, the Holder shall not, with respect to any Covered Securities Beneficially Owned by the Holder, (i) Transfer any such Covered Securities or (ii) deposit any such Covered Securities into a voting trust or enter into a voting agreement or arrangement with respect to such Covered Securities or grant any proxy (except as otherwise provided herein) or power of attorney with respect thereto.

(b) Notwithstanding Section 2.1(a), the Holder may: (i) Transfer Covered Securities to one or more Affiliates (A) who is a party to an agreement with Parent with substantially similar terms as this Agreement or (B) if, as a condition to such Transfer, the recipient agrees in writing to be bound by this Agreement and delivers a copy of such executed written agreement to Parent prior to the consummation of such Transfer or (ii) Transfer Covered Securities with the prior written consent of Parent (which consent may be granted or withheld by Parent in its sole discretion).

(c) Nothing in this Agreement shall prohibit direct or indirect transfers of equity or other interests in a Holder to an Affiliate of the Holder.

2.2 Additional Purchases; Adjustments. The Holder agrees that any additional shares of capital stock or other equity of the Company or Opco LLC that the Holder purchases or otherwise acquires or with respect to which the Holder otherwise acquires voting power after the execution of this Agreement and prior to the earlier of the Termination Date and the Effective Time shall be subject to the terms and conditions of this Agreement to the same extent as if they constituted the Covered Securities as of the date hereof (and shall be deemed “Covered Securities” for all purposes hereof), and the Holder shall promptly notify Parent of the existence of any such after acquired Covered Securities. In the event of any stock split, stock dividend, merger, reorganization, recapitalization, reclassification, combination, exchange of shares or the like of the capital stock of the Company or any similar transaction with respect to the equity of Opco LLC, as applicable, affecting the Covered Securities, the terms of this Agreement shall apply to the resulting securities.

2.3 Unpermitted Transfers; Involuntary Transfers. Any Transfer or attempted Transfer of any Covered Securities in violation of this Article II shall, to the fullest extent permitted by Law, be null and void ab initio, with no further action required by or on behalf of Parent, the Company or Opco LLC. In furtherance of the foregoing, the Holder hereby agrees to authorize and instruct the Company or Opco LLC, as applicable, to instruct its transfer agent to enter a stop transfer order with respect to all of the Covered Securities. If any involuntary Transfer of any of the Holder’s Covered Securities shall occur, the transferee (which term, as used herein, shall include any and all transferees and subsequent transferees of the initial transferee) shall take and hold such Covered Securities subject to all of the restrictions, liabilities and rights under this Agreement, which shall continue in full force and effect until valid termination of this Agreement.

ARTICLE III

AGREEMENT TO VOTE

3.1 Agreement to Vote. Prior to the earlier of the Termination Date and the Effective Time, the Holder irrevocably and unconditionally agrees that such Holder shall, at any meeting (whether annual or special and whether or not an adjourned or postponed meeting), however called, of the stockholders of the Company or at any meeting or with respect to any written consent of the Members (as defined in the Opco LLC Agreement) of Opco LLC, as applicable, appear at such meeting or otherwise cause the Covered Securities to be counted as present thereat for purpose of establishing a quorum and vote, or cause to be voted at such meeting, all Covered Securities:

(a) in favor of adoption of the Merger Agreement and approving any other matters necessary for consummation of the transactions contemplated by the Merger Agreement, including the Mergers (the “Transaction Matters”); and

(b) against (i) any Acquisition Proposal or any other transaction, proposal, agreement or action made in opposition to adoption of the Merger Agreement or in competition or inconsistent with the Mergers or matters contemplated by the Merger Agreement and (ii) any action that could reasonably be expected to impede, interfere with, delay, discourage, postpone or adversely affect the Mergers or any of the other transactions contemplated by the Merger Agreement or this Agreement or any transaction that results in a breach in any material respect of any covenant, representation or warranty or other obligation or agreement of the Company or any of its Subsidiaries (including Opco LLC) under the Merger Agreement.

Any attempt by the Holder to vote, consent or express dissent with respect to (or otherwise to utilize the voting power of) the Covered Securities in contravention of this Section 3.1 shall be null and void ab initio. If the Holder is the Beneficial Owner, but not the holder of record, of any Covered Securities, the Holder agrees to take all actions necessary to cause the holder of record and any nominees to vote (or exercise a consent with respect to) all of such Covered Securities in accordance with this Section 3.1.

Notwithstanding anything herein to the contrary in this Agreement, this Section 3.1 shall not require the Holder to be present (in person or by proxy) or vote (or cause to be voted), any of the Covered Securities to amend, modify or waive any provision of the Merger Agreement in a manner that reduces the amount or changes the form of the Merger Consideration payable or imposes any material restrictions on or additional material conditions on the payment of the Merger Consideration or extends the Outside Date. Notwithstanding anything to the contrary in this Agreement, the Holder shall remain free to vote (or execute consents or proxies with respect to) the Covered Securities with respect to any matter other than as set forth in Section 3.1(a) and Section 3.1(b) in any manner the Holder deems appropriate, including in connection with the election of directors of the Company.

3.2 Proxy. The Holder hereby irrevocably appoints as its proxy and attorney-in-fact, Parent, the executive officers of Parent and any person designated in writing by Parent, each of them individually, with full power of substitution and resubstitution, to consent to or vote the Covered Securities as indicated in Section 3.1 above. The Holder intends this proxy to be irrevocable and unconditional during the term of this Agreement prior to the earlier of the Termination Date and the Effective Time and coupled with an interest and will take such further action or execute such other instruments as may be reasonably necessary to effect the intent of this proxy, and hereby revokes any proxy previously granted by the Holder with respect to the Covered Securities (and the Holder hereby represents that any such proxy is revocable). The proxy granted by the Holder shall be automatically revoked upon the earlier of the Termination Date and the Effective Time and Parent may further terminate this proxy at any time at its sole election by written notice provided to the Holder.

ARTICLE IV

ADDITIONAL AGREEMENTS

4.1 Waiver of Appraisal Rights; Litigation. Unless (a) this Agreement is terminated in accordance with its terms or pursuant to Section 6.5 or (b) the Merger Agreement is amended in a manner that reduces the amount or changes the form of the Merger Consideration payable or imposes any material restrictions on or additional material conditions on the payment of the Merger Consideration or extends the Outside Date, in each case without the consent of the Holder, to the fullest extent permitted by Law, the Holder hereby irrevocably and unconditionally waives, and agrees not to exercise, any rights of appraisal (including under Section 262 of the DGCL) relating to the Mergers that the Holder may have by virtue of the ownership of any Covered Securities. The Holder further agrees not to commence, join in, and agrees to take all actions necessary to opt out of any class in any class action with respect to, any claim, derivative or otherwise, against Parent, Merger Sub Inc., Merger Sub LLC, Opco Merger Sub LLC, Opco LLC, or the Company or any of their respective Affiliates and each of their successors or directors relating to the negotiation, execution or delivery of this Agreement or the Merger Agreement or the consummation of the transactions contemplated hereby or thereby, including any claim (a) challenging the validity of, or seeking to enjoin the operation of, any provision of this Agreement or the Merger Agreement (including any claim seeking to enjoin or delay the Closing) or (b) alleging a breach of any fiduciary duty of the Company Board in connection with the negotiation and entry into the Merger Agreement or the transactions contemplated thereby, and hereby irrevocably waives any claim or rights whatsoever with respect to any of the foregoing.

4.2 Lock-Up. During the period commencing on the Closing Date and continuing for 180 days after the Closing Date (the “Lock-Up Period”), the Holder shall not, with respect to any shares of common stock, par value $0.01 per share, of Parent (the “Parent Common Stock”) issued pursuant to the terms of the Merger Agreement that are Beneficially Owned by the Holder (such shares of Parent Common Stock, the “Lock-Up

Shares”), (a) offer, pledge, sell, contract to sell, grant any option, right or warrant to purchase, give, assign, hypothecate, pledge, encumber, grant a security interest in, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of (including through any hedging or other similar transaction) any economic, voting or other rights in or to the Lock-Up Shares, or otherwise transfer or dispose of, directly or indirectly, or (b) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the Lock-Up Shares (any such transaction described in clause (a) or (b) above, a “Lock-Up Share Transfer”). Notwithstanding the foregoing, (i) the restrictions set forth in this Section 4.2 shall not apply to (A) any Lock-Up Share Transfer to one or more Affiliates of the Holder (1) who is a party to an agreement with Parent with substantially similar terms as this Section 4.2 or (2) if, as a condition to such Lock-Up Share Transfer, the recipient agrees in writing to be bound by this Section 4.2 and delivers a copy of such executed written agreement to Parent prior to the consummation of such transfer, (B) any Lock-Up Share Transfer with the prior written consent of Parent (which consent may be granted or withheld by Parent in its sole discretion), or (C) any Lock-Up Share Transfer made in connection with any tender offer, exchange offer, merger, consolidation or other similar transaction approved or recommended by the Parent Board or a committee thereof; (ii) the Holder may, during the first 90 days following the Closing Date, engage in one or more Lock-Up Share Transfers so long as, following any such Lock-Up Share Transfer, the Holder continues to Beneficially Own 85% of the Lock-Up Shares; and (iii) the Holder may, during the period beginning on the 91st day after the Closing Date and ending on the last day of the Lock-Up Period, engage in one or more Lock-Up Share Transfers so long as, following any such Lock-Up Share Transfer, the Holder continues to Beneficially Own 70% of the Lock-Up Shares; and (iv) the restrictions set forth in this Section 4.2 shall be subject to, and the rights of Parent to enforce this Section 4.2 shall be subordinate to, the rights of Credit Suisse AG pursuant to the terms of that certain Third Amended and Restated Demand Promissory Note and Collateral Agreement, dated as of February 26, 2019, by and among the Holder, Sharoll Sheffield and Credit Suisse AG, as amended prior to the date of this Agreement, in all respects. In connection with any Lock-Up Share Transfer pursuant to clause (i) of this Section 4.2, Parent agrees to not take any action that would cause such Lock-Up Share Transfer to be subject to requirements imposed by any “fair price,” “moratorium,” “control share acquisition,” “business combination” or any other anti-takeover statute or similar statute enacted under applicable Law (“Takeover Laws”), and, at the request of the Holder, will take all reasonable steps within its control to exempt (or ensure the continued exemption of) such Lock-Up Share Transfer from the Takeover Laws of any state that purport to apply to such transaction.

4.3 Further Assurances. The Holder agrees that, during the term of this Agreement, the Holder shall and shall cause such Holder’s controlled Affiliates to take no action that would reasonably be expected to adversely affect or delay the ability to perform the Holder’s respective covenants and agreements under this Agreement.

4.4 Fiduciary Duties. The Holder is entering into this Agreement solely in such Holder’s capacity as the record or Beneficial Owner of the Covered Securities and nothing herein is intended to or shall limit or affect any actions taken by the Holder or any of the Holder’s designees, as applicable, serving in his or her capacity as a director or officer of the Company (or a Subsidiary of the Company). The taking of any actions (or failures to act) by the Holder or the Holder’s designees, as applicable, serving as a director or officer of the Company or a Subsidiary of the Company (in such capacity as a director or officer) shall not be deemed to constitute a breach of this Agreement.

ARTICLE V

REPRESENTATIONS AND WARRANTIES OF HOLDER

5.1 Representations and Warranties. The Holder hereby represents and warrants as follows:

(a) Ownership. The Holder has, with respect to the Covered Securities, and at all times during the term of this Agreement will continue to have, Beneficial Ownership of, good and valid title to and full and exclusive power to vote, issue instructions with respect to the matters set forth in Article III, agree to all of the matters set forth in this Agreement and to Transfer the Covered Securities. The Covered Securities constitute all of the

shares of Company Class A Common Stock, Company Class B Common Stock and Opco LLC Units owned of record or Beneficially Owned by the Holder as of the date hereof, and all of the Covered Securities are held by the Holder free and clear of all Liens, other than any Permitted Liens. Other than this Agreement and any Permitted Liens, (i) there are no agreements or arrangements of any kind, contingent or otherwise, to which the Holder is a party obligating the Holder to Transfer or cause to be Transferred to any person any of the Covered Securities and (ii) no Person has any contractual or other right or obligation to purchase or otherwise acquire any of the Covered Securities.

(b) Organization; Authority. The Holder is an individual with full power and authority and is duly authorized to make, enter into and carry out the terms of this Agreement and to perform the Holder’s obligations hereunder. This Agreement has been duly and validly executed and delivered by the Holder and (assuming due authorization, execution and delivery by Parent) constitutes a valid and binding agreement of the Holder, enforceable against the Holder in accordance with its terms (except in all cases as such enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar Laws affecting creditors’ rights generally and by general principles of equity (regardless of whether considered in a proceeding in equity or at law)), and no other action is necessary to authorize the execution and delivery by the Holder or the performance of the Holder’s obligations hereunder.

(c) No Violation. The execution, delivery and performance by the Holder of this Agreement will not (i) violate any provision of any Law applicable to the Holder; (ii) violate any order, judgment or decree applicable to the Holder or any of its Affiliates; or (iii) conflict with, or result in a breach or default under, any agreement or instrument to which the Holder or any of its Affiliates is a party, except where such conflict, breach or default would not reasonably be expected to, individually or in the aggregate, have an adverse effect on the Holder’s ability to satisfy the Holder’s obligations hereunder.

(d) Consents and Approvals. The execution and delivery by the Holder of this Agreement, and the performance of the Holder’s obligations hereunder, do not require the Holder or any of its Affiliates to obtain any consent, approval, authorization or permit of, or to make any filing with or notification to, any person or Governmental Entity, except such filings and authorizations as may be required under the Exchange Act.

(e) Absence of Litigation. To the knowledge of the Holder, as of the date hereof, there is no action, suit, investigation, complaint or other proceeding pending against, or threatened in writing against the Holder that would prevent the performance by the Holder of its obligations under this Agreement on a timely basis.

(f) Absence of Other Voting Agreements. Except as contemplated by this Agreement, the Holder (i) has not entered into, and shall not enter into at any time prior to the earlier of the Termination Date and the Effective Time, any voting agreement or voting trust with respect to the Covered Securities and (ii) has not granted, and shall not grant at any time prior to earlier of the Termination Date and the Effective Time, a proxy or power of attorney with respect to the Covered Securities, in either case, which is inconsistent with the Holder’s obligations pursuant to this Agreement. Other than with respect to any Permitted Liens, none of the Covered Securities are subject to any pledge agreement pursuant to which the Holder does not retain sole and exclusive voting rights with respect to the Covered Securities subject to such pledge agreement at least until the occurrence of an event of default under the related debt instrument.

ARTICLE VI

MISCELLANEOUS

6.1 No Solicitation. The Holder agrees that such Holder shall not, and shall not permit or authorize any of such Holder’s controlled Affiliates and shall use commercially reasonable efforts to not permit or authorize any of such Holder’s or such Holder’s controlled Affiliates’ Representatives to, directly or indirectly, take any of the actions listed in clauses (i) or (ii) of Section 5.2(a) of the Merger Agreement (without giving effect to any amendment or modification of such clauses after the date hereof). The Holder shall, and shall cause such Holder’s controlled Affiliates and shall use commercially reasonable efforts to cause such Holder’s and such Holder’s controlled Affiliates’ Representatives to, immediately cease and cause to be terminated all existing

discussions and negotiations with any Person conducted heretofore with respect to any Acquisition Proposal or potential Acquisition Proposal. In addition, the Holder agrees to be subject to Section 5.2(e) of the Merger Agreement (without giving effect to any amendment or modification of such clauses after the date hereof) as if the Holder were the “Company” thereunder. Notwithstanding the foregoing, to the extent the Company complies with its obligations under Section 5.2 of the Merger Agreement and participates in discussions or negotiations with a Person regarding an Acquisition Proposal, the Holder or any of such Holder’s controlled Affiliates and/or such Holder’s and such Holder’s controlled Affiliates’ Representatives may engage in discussions or negotiations with such Person to the extent that the Company can act under Section 5.2 of the Merger Agreement.

6.2 Non-Recourse. This Agreement may only be enforced against, and any claim or cause of action based upon, arising out of, or related to this Agreement or the transactions contemplated by this Agreement may only be brought against, the entities that are expressly named as parties hereto and then only with respect to the specific obligations set forth herein with respect to such party. Except to the extent a named party to this Agreement (and then only to the extent of the specific obligations undertaken by such named party in this Agreement and not otherwise), no past, present or future, director, manager, officer, employee, incorporator, member, partner, equityholder, Affiliate, agent, attorney, advisor, consultant or Representative or Affiliate of any of the foregoing (each, a “Holder Related Party”) shall have any liability (whether in contract, tort, equity or otherwise) for any one or more of the representations, warranties, covenants, agreements or other obligations or liabilities of or made under this Agreement or in respect of any oral representations made or alleged to have been made in connection herewith (whether for indemnification or otherwise) or of or for any claim based on, arising out of, or related to this Agreement or the transactions contemplated by this Agreement. Parent acknowledges that no Holder nor any Holder Related Party has made, and Parent has not relied upon, any representation related to the matters contemplated by this Agreement, except as set forth in Article V.

6.3 No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Parent any direct or indirect ownership or incidence of ownership of or with respect to the Covered Securities. All rights, ownership and economic benefits of and relating to the Covered Securities shall remain vested in and belong to the Holder, and Parent shall not have any authority to manage, direct, restrict, regulate, govern or administer any of the policies or operations of the Company or Opco LLC or exercise any power or authority to direct the Holder in the voting or disposition of any Covered Securities, except as otherwise expressly provided herein.

6.4 Disclosure. The Holder consents to and authorizes the publication and disclosure by the Company and Parent of the Holder’s identity and holding of Covered Securities, and the terms of this Agreement (including, for avoidance of doubt, the disclosure of this Agreement), in any press release, the Form S-4, the Joint Proxy Statement and any other disclosure document required in connection with this Agreement, the Merger Agreement, the Mergers and the transactions contemplated by the Merger Agreement.

6.5 Termination. This Agreement shall terminate upon the date the Merger Agreement is validly terminated in accordance with its terms (such date, the “Termination Date”). Neither the provisions of this Section 6.5 nor the termination of this Agreement shall relieve (x) any party hereto from any liability of such party to any other party incurred prior to such termination or (y) any party hereto from any liability to any other party arising out of or in connection with a breach of this Agreement. Nothing in the Merger Agreement shall relieve the Holder from any liability arising out of or in connection with a breach of this Agreement.

6.6 Amendment. This Agreement may not be amended, modified or supplemented in any manner, whether by course of conduct or otherwise, except by an instrument in writing specifically designated as an amendment hereto, signed on behalf of each party hereto.

6.7 Reliance. The Holder understands and acknowledges that Parent is entering into the Merger Agreement in reliance upon the Holder’s execution and delivery of this Agreement.

6.8 Extension; Waiver. The parties hereto may, to the extent permitted by applicable Law:

(a) extend the time for the performance of any of the obligations or acts of the other party hereunder;

(b) waive any inaccuracies in the representations and warranties of the other party contained herein or in any document delivered pursuant hereto; or

(c) waive compliance with any of the agreements or conditions of the other party contained herein;

provided,however, that, in each case, such waiver is made in writing and signed by the party (or parties) against whom the waiver is to be effective.

Notwithstanding the foregoing, no failure or delay by Parent in exercising any right hereunder shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise of any other right hereunder. No agreement on the part of a party hereto to any such extension or waiver shall be valid unless set forth in an instrument in writing signed on behalf of such party. No waiver by any of the parties hereto of any default, misrepresentation or breach of representation, warranty, covenant or other agreement hereunder, whether intentional or not, shall be deemed to extend to any prior or subsequent default, misrepresentation or breach or affect in any way any rights arising by virtue of any prior or subsequent such occurrence.

6.9 Expenses. All fees and expenses incurred in connection with this Agreement and the transactions contemplated hereby shall be paid by the party incurring such fees or expenses, whether or not the Mergers are consummated.

6.10 Notices. All notices and other communications hereunder shall be in writing and shall be deemed duly given (a) on the date of delivery if delivered personally, or if by e mail, upon written confirmation of receipt by e mail or otherwise; provided, that each notice party shall use reasonable best efforts to confirm receipt of any such email correspondence promptly upon receipt of such request, (b) on the first Business Day following the date of dispatch if delivered utilizing a next-day service by a recognized next-day courier or (c) on the earlier of confirmed receipt or the fifth Business Day following the date of mailing if delivered by registered or certified mail, return receipt requested, postage prepaid. All notices hereunder shall be delivered to the addresses set forth below, or pursuant to such other instructions as may be designated in writing by the party to receive such notice:

if to the Holder, to:

Bryan Sheffield

Marbella Interests, LLC

303 Colorado St. Ste. 2050 Austin, TX 78701

Attn: Dan Ferreri

Email: dferreri@marbellainterests.com

and if to Parent, to:

Pioneer Natural Resources Company

777 Hidden Ridge

Irving, Texas 75038

Attention: Mark H. Kleinman

E-mail: mark.kleinman@pxd.com

With a copy (which shall not constitute notice) to:

Gibson, Dunn & Crutcher LLP

2001 Ross Avenue, Suite 2100

Dallas, Texas 75201

Attention: Jeffrey A. Chapman; Tull R. Florey

E-mail: jchapman@gibsondunn.com; tflorey@gibsondunn.com

6.11 Interpretation. When a reference is made in this Agreement to a Section or Article, such reference shall be to a Section or Article of this Agreement unless otherwise indicated. The words “this Section,” “this subsection” and words of similar import, refer only to the Sections or subsections hereof in which such words occur. The headings contained in this Agreement are for convenience of reference purposes only and shall not affect in any way the meaning or interpretation of this Agreement. All words used in this Agreement will be construed to be of such gender or number as the circumstances require. The word “including” and words of similar import when used in this Agreement will mean “including, without limitation,” unless otherwise specified. The words “hereof,” “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to the Agreement as a whole and not to any particular provision in this Agreement. The term “or” is not exclusive. The word “will” shall be construed to have the same meaning and effect as the word “shall. The word “extent” in the phrase “to the extent” shall mean the degree to which a subject or other thing extends and such phrase shall not mean simply “if.” References to “days” mean calendar days; when calculating the period of time within which, or following which, any act is to be done or step taken pursuant to this Agreement, the date that is the reference day in calculating such period shall be excluded and if the last day of the period is a non-Business Day, the period in question shall end on the next Business Day or if any action must be taken hereunder on or by a day that is not a Business Day, then such action may be validly taken on or by the next day that is a Business Day. References to an “Affiliate” of any Person mean any other Person that directly or indirectly, through one or more intermediaries, controls, is controlled by, or is under common control with, such first Person; provided, however, that solely for purposes of this Agreement, notwithstanding anything to the contrary set forth herein, neither the Company nor any of its Subsidiaries shall be deemed to be an Affiliate of the Holder.

6.13 No Presumption Against Drafting Party. Each of the parties hereto acknowledges that each party to this Agreement has been represented by counsel in connection with this Agreement and the transactions contemplated hereby. Accordingly, any rule of Law or any legal decision that would require interpretation of any claimed ambiguities in this Agreement against the drafting party has no application and is expressly waived.

6.14 Counterparts. This Agreement may be executed in two or more counterparts, all of which shall be considered one and the same instrument and shall become effective when one or more counterparts have been signed by each of the parties hereto and delivered to the other party.

6.15 No Partnership, Agency or Joint Venture. This Agreement is intended to create, and creates, a contractual relationship and is not intended to create, and does not create, any agency, partnership, joint venture, any like relationship between the parties hereto or a presumption that the parties hereto are in any way acting in concert or as a group with respect to the obligations or the transactions contemplated by this Agreement.

6.16 No Third-Party Beneficiaries. Nothing in this Agreement, express or implied, is intended to or shall confer upon any Person other than the parties hereto and their respective successors and permitted assigns any legal or equitable right, benefit or remedy of any nature under or by reason of this Agreement.

6.17 Entire Agreement. This Agreement, the Merger Agreement, the Company Disclosure Letter, the Parent Disclosure Letter, the TRA Amendment and the Confidentiality Agreement constitute the entire agreement, and supersede all prior written agreements, arrangements, communications and understandings and all prior and contemporaneous oral agreements, arrangements, communications and understandings among the parties hereto with respect to the subject matter hereof and thereof.

6.18 Governing Law; Venue; Waiver of Jury Trial.

(a) This Agreement and all disputes or controversies arising out of or relating to this Agreement or the transactions contemplated hereby shall be governed by, and construed in accordance with, the internal Laws of the State of Delaware, without regard to the Laws of any other jurisdiction that might be applied because of the conflicts of Laws principles of the State of Delaware.

(b) Each of the parties hereto irrevocably agrees that any legal action or proceeding arising out of or relating to this Agreement brought by any party or its Affiliates against any other party or its Affiliates shall be brought and determined in the Court of Chancery of the State of Delaware, provided that if jurisdiction is not then available in the Court of Chancery of the State of Delaware, then any such legal action or proceeding may be brought in any federal court located in the State of Delaware. Each of the parties hereto hereby irrevocably submits to the jurisdiction of the aforesaid courts for itself and with respect to its property, generally and unconditionally, with regard to any such action or proceeding arising out of or relating to this Agreement and the transactions contemplated hereby. Each of the parties hereto agrees not to commence any action, suit or proceeding relating thereto except in the courts described above in Delaware, other than actions in any court of competent jurisdiction to enforce any judgment, decree or award rendered by any such court in Delaware as described herein. Each of the parties hereto further agrees that notice as provided herein shall constitute sufficient service of process, and the parties further waive any argument that such service is insufficient. Each of the parties hereto hereby irrevocably and unconditionally waives, and agrees not to assert, by way of motion or as a defense, counterclaim or otherwise, in any action or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby, (i) any claim that it is not personally subject to the jurisdiction of the courts in Delaware as described herein for any reason, (ii) that it or its property is exempt or immune from jurisdiction of any such court or from any legal process commenced in such courts (whether through service of notice, attachment prior to judgment, attachment in aid of execution of judgment, execution of judgment or otherwise) and (iii) that (A) the suit, action or proceeding in any such court is brought in an inconvenient forum, (B) the venue of such suit, action or proceeding is improper or (C) this Agreement, or the subject matter hereof, may not be enforced in or by such courts.

(c) EACH OF THE PARTIES TO THIS AGREEMENT HEREBY IRREVOCABLY WAIVES ALL RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

6.19 Assignment. Neither this Agreement nor any of the rights, interests or obligations under this Agreement may be assigned or delegated, in whole or in part, by operation of law or otherwise, by either party without the prior written consent of the other party, and any such assignment without such prior written consent shall be null and void; provided, however, that Parent may assign all or any of its rights and obligations hereunder to any direct or indirect Subsidiary of Parent; providedfurther, that no assignment shall limit the assignor’s obligations hereunder. Subject to the preceding sentence and except as set forth in Article II, this Agreement will be binding upon, inure to the benefit of, and be enforceable by, the parties and their respective successors and assigns.

6.20 Specific Performance. The parties hereto agree that irreparable damage would occur in the event that the parties do not perform the provisions of this Agreement in accordance with its terms or otherwise breach such provisions. Accordingly, prior to any termination of this Agreement pursuant to Section 6.5, the parties hereto acknowledge and agree that each party shall be entitled to an injunction, specific performance and other equitable relief to prevent breaches of this Agreement and to enforce specifically the terms and provisions hereof in the Court of Chancery of the State of Delaware, provided, that if jurisdiction is not then available in the Court of Chancery of the State of Delaware, then in any federal court located in the State of Delaware, this being in addition to any other remedy to which such party is entitled at law or in equity. Each party hereto accordingly agrees (a) the non-breaching party will be entitled to injunctive and other equitable relief, without proof of actual damages; and (b) the alleged breaching party will not raise any objections to the availability of the equitable remedy of specific performance to prevent or restrain breaches or threatened breaches of, or to enforce compliance with, the covenants and obligations of such party under this Agreement and will not plead in defense thereto that there are adequate remedies at Law, all in accordance with the terms of this Section 6.20. Each party hereto further agrees that no other party or any other Person shall be required to obtain, furnish or post any bond or similar instrument in connection with or as a condition to obtaining any remedy referred to in this Section 6.20, and each party irrevocably waives any right it may have to require the obtaining, furnishing or posting of any such bond or similar instrument.

6.21 Severability. Whenever possible, each provision or portion of any provision of this Agreement shall be interpreted in such manner as to be effective and valid under applicable Law, but if any provision or portion of any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable Law or rule in any jurisdiction, such invalidity, illegality or unenforceability shall not affect any other provision or portion of any provision in such jurisdiction, and this Agreement shall be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable provision or portion of any provision had never been contained herein.

6.22 Delivery by Facsimile or Electronic Transmission. This Agreement may be executed by facsimile or .pdf signature and a facsimile or .pdf signature shall constitute an original for all purposes.

[Signature Page Follows]

IN WITNESS WHEREOF, the parties hereto, intending to be legally bound hereby, have executed or caused this Agreement to be executed in counterparts, all as of the day and year first above written.

PIONEER NATURAL RESOURCES COMPANY
By:Senior Managing Director

/s/ Richard P. Dealy

Name:Richard P. Dealy
Title:Executive Vice President and Chief Financial Officer

[Signature Page to the Voting and Support Agreement]

HOLDER:
By:

/s/ Bryan Sheffield

Name:Bryan Sheffield, an individual

[Signature Page to the Voting and Support Agreement]

PART II.II

INFORMATION NOT REQUIRED IN PROSPECTUS

 

Item 20.

Indemnification of DirectorsOfficers and OfficersDirectors.

Delaware General Corporation Law

Section 145(a) of the Delaware General Corporation LawDGCL provides that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation) by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with the action, suit or proceeding if hethe person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe the person’s conduct was unlawful.

Section 145(b) of the Delaware General Corporation LawDGCL provides that a corporation may indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection with the defense or settlement of the action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in respect of any claim, issue or matter as to which the person shall have been adjudged to be liable to the corporation unless and only to the extent that the Delaware Court of Chancery or the court in which the action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, the person is fairly and reasonably entitled to indemnity for the expenses which the Delaware Court of Chancery or such other court shall deem proper.

Section 145(c)(1) of the Delaware General Corporation LawDGCL provides that to the extent that a present or former director or officer of a corporation has been successful on the merits or otherwise in defense of any action, suit or proceeding referred to in Section 145(a) and (b), or in defense of any claim, issue or matter therein, the person shall be indemnified against expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection therewith. In addition, under Section 145(c)(2), a corporation may indemnify any other person who is not a present or former director or officer of the corporation against expenses (including attorneys’ fees) actually and reasonably incurred by such person to the extent he or she has been successful on the merits or otherwise in defense of any action, suit or proceeding referred to in Section 145(a) and (b), or in defense of any claim, issue or matter therein. For indemnification with respect to any act or omission occurring after December 31, 2020, references to “officer” for purposes of Sections 145(c)(1) and (c)(2) of the DGCL mean only certain senior officers identified in Section 3114(b) of Title 10 of the Delaware Code (but treating residents of Delaware as if they were nonresidents for purposes of applying Section 3114(b) of Title 10).

Section 145(d) of the Delaware General Corporation LawDGCL provides that any indemnification under Section 145(a) and (b) (unless ordered by a court) shall be made by the corporation only as authorized in the specific case upon a determination that indemnification of the present or former director, officer, employee or agent is proper in the circumstances because the person has met the applicable standard of conduct set forth in Section 145(a) and (b). The determination shall be made, with respect to a person who is a director or officer at the time of such determination, (1) by a majority vote of the directors who are not parties to such action, suit or proceeding, even though less than a quorum, (2) by a committee of such directors designated by majority vote of such directors,

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even though less than a quorum, (3) if there are no such directors, or if such directors so direct, by independent legal counsel in a written opinion, or (4) by the stockholders.

Section 145(e) of the Delaware General Corporation LawDGCL provides that expenses (including attorneys’ fees) incurred by an officer or director in defending any civil, criminal, administrative or investigative action, suit or proceeding may be paid by the corporation in advance of the final disposition of such action, suit or proceeding upon receipt of an undertaking by or on behalf of the director or officer to repay such amount if it shall ultimately

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be determined that the person is not entitled to be indemnified by the corporation as authorized in Section 145. The expenses (including attorneys’ fees) incurred by former directors and officers or other employees and agents or by persons serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise may be so paid upon those terms and conditions, if any, as the corporation deems appropriate.

Section 145(f) of the Delaware General Corporation LawDGCL provides that the indemnification and advancement of expenses provided by, or granted pursuant to, Section 145 shall not be deemed exclusive of any other rights to which those seeking indemnification or advancement of expenses may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors or otherwise.

Section 145(g) of the Delaware General Corporation LawDGCL provides that a corporation shall have the power to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any liability asserted against the person and incurred by the person in any such capacity, or arising out of the person’s status as such, whether or not the corporation would have the power to indemnify the person against such liability under Section 145.

Section 145(k)145(j) of the Delaware General Corporation LawDGCL provides that the indemnification and advancement of expenses provided by, or granted pursuant to, Section 145 shall, unless otherwise provided when authorized or ratified, continue as to a person who has ceased to be a director, officer, employee or agent and shall inure to the benefit of the heirs, executors and administrators of such a person.

Pioneer’s Amended and Restated Certificate of Incorporation

Article Twelfth of Pioneer’s amended and restated certificate of incorporation, as amended, provides that each person who at any time is or was a director or officer of Pioneer, or any person who, while a director or officer of Pioneer, is or was serving at Pioneer’s request as a director, officer, partner, venturer, proprietor, trustee, employee, agent or similar functionary of another foreign or domestic corporation, limited liability company, association, partnership, joint venture, sole proprietorship, trust, employee benefit plan or other Pioneer,enterprise, shall be entitled to (a)(1) indemnification and (b)(2) the advancement of expenses incurred by such person from Pioneer as, and to the fullest extent, permitted by the Delaware General Corporation LawDGCL or any successor statutory provision, as from time to time amended. Any repeal or modification of Article Twelfth of Pioneer’s amended and restated certificate of incorporation, as amended, shall be prospective only, and shall not limit the rights of any director or officer or thePioneer’s obligations of Pioneer with respect to any claim arising from the services of such director or officer in the capacities described above prior to any such repeal or amendment of Article Twelfth. Article Twelfth further provides that, in the event of the death of any person having a right of indemnification under the foregoing provisions, such right shall inure to the benefit of his or her heirs, executors, administrators and personal representatives. The rights conferred in Article Twelfth of Pioneer’s amended and restated certificate of incorporation, as amended, are not exclusive of any other right which any person may have or hereafter acquire under any statute, bylaw, resolution of stockholders or directors, agreement or otherwise.

Article Thirteenth of Pioneer’s amended and restated certificate of incorporation, as amended, provides that Pioneer’s directors shall not be personally liable to Pioneer or any of itsPioneer’s stockholders for monetary damages for breach of fiduciary duty as a director involving any act or omission of any such director; provided, however, that such

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Article Thirteenth does not eliminate or limit the liability of a director (1) for any breach of such director’s duty of loyalty to Pioneer or its stockholders, (2) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (3) under Section 174 of the Delaware General Corporation LawDGCL (which relates to certain unlawful dividend payments or stock purchases or redemptions), as the same exists or may hereafter be amended, supplemented or replaced, or (4) for a transaction from which the director derived an improper personal benefit. If the Delaware General Corporation LawDGCL is amended to authorize the further elimination or limitation of the liability of directors, then the liability of a director, in addition to the limitation on personal liability described above, shall be limited to the fullest extent permitted by the Delaware

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General Corporation Law,DGCL, as so amended. Furthermore, any repeal or modification of Article Thirteenth of Pioneer’s amended and restated certificate of incorporation, as amended, by itsPioneer’s stockholders shall be prospective only, and shall not adversely affect any limitation on the personal liability of a director existing at the time of such repeal or modification.

Indemnification Agreements

Pioneer has entered into indemnification agreements with itsPioneer’s directors and certain of its officers. Under the terms of thePioneer’s officers (each, an “Indemnitee”). Each indemnification agreements,agreement requires Pioneer has generally agreed to indemnify an officer or director for liabilities incurredeach Indemnitee to the fullest extent permitted by the DGCL. This means, among other things, that Pioneer must indemnify the Indemnitee against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement that are actually and reasonably incurred in an action, suit or proceeding by reason of the fact that the person is or was a director, officer, employee or agent of Pioneer or is or was serving at Pioneer’s request as a director, officer, employee or agent of another corporation or other entity if the Indemnitee meets the standard of conduct provided under Delaware General Corporation Law.law. Also as permitted under Delaware law, the indemnification agreements require Pioneer to advance expenses in defending any such an action provided that the director or executive officerIndemnitee undertakes to repay the amounts if the person ultimately is determined not to be entitled to indemnification from Pioneer. Pioneer has additionally agreed towill also make the indemniteeIndemnitee whole for taxes imposed on the indemnification payments and for costs in any action to establish indemnitee’sIndemnitee’s right to indemnification, whether or not wholly successful.

In general, the disinterested directors on the Pioneer Boardboard or a committee of disinterested directors have the authority to determine an indemnitee’sIndemnitee’s right to indemnification, but the indemniteeIndemnitee can require that independent legal counsel make this determination if a change in control or potential change in control has occurred. In addition, the indemniteeIndemnitee can require Pioneer to establish a trust fund with a third-party trustee sufficient to satisfy the indemnification obligations and expenses if a change in control or potential change in control has occurred.

The indemnification agreements require Pioneer to continue directors’ and officers’ liability insurance coverage for an indemniteeIndemnitee for six years after the indemniteeIndemnitee ceases to be ana director or officer, or director, and they obligate Pioneer to procure up to a six-year run-off policy in the event of a change in control or termination of the person in the year following a change in control of Pioneer. The indemnification agreements also limit the period in which Pioneer can bring an action against the indemniteeIndemnitee to three years for breaches of fiduciary duty and to one year for other types of claims.

D&O Liability Insurance

Pioneer maintains directors’ and officers’ liability insurance.

The above discussion of Section 145 of the Delaware General Corporation Law,DGCL, Pioneer’s amended and restated certificate of incorporation, as amended, the indemnification agreements and Pioneer’s maintenance of directors’ and officers’ liability insurance is not intended to be exhaustive and is respectively qualified in its entirety by such statute and documents.

Merger Agreement

In connection with the mergers, Pioneer has agreed to cause, and fully guarantee the performance of, the surviving company to take all action reasonably necessary to ensure that all rights to indemnification, exculpation

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and expense advancement and reimbursement in favor of current or former directors or officers of Parsley and its subsidiaries in any existing indemnification agreements and in the organizational documents of Parsley and Parsley LLC (as in effect on the date of the merger agreement) for acts or omissions occurring prior to the effective time are assumed and performed by the surviving company and continue in full force and effect until the expiration of the applicable statute of limitations, except as otherwise required by applicable law.

The merger agreement requires Pioneer and the surviving company to put in place, and Pioneer to fully prepay prior to the effective time, a “tail policy” with a period of at least six years after the effective time from an insurance carrier with the same or better credit rating as Parsley’s current insurance carrier with respect to directors’ and officers’ liability insurance. In no event shall the aggregate cost of such policy purchased by Pioneer exceed during the tail period three times the current aggregate annual premium paid by Parsley for such purpose.

In the event that Pioneer or the surviving company, or any of their respective successors or assigns, consolidates with or merges into any other person and is not the continuing or surviving corporation or entity or transfer all or substantially all its properties and assets to any person, then in each case Pioneer must provide that the applicable successor and assign assumes the indemnification obligations described above

 

Item 21.

Exhibits and Financial Statement SchedulesSchedules.

(a) Exhibits.

ReferenceA list of exhibits included as part of this registration statement is made toset forth in the Exhibit Index to Exhibits following the signature page hereto, which Index to Exhibits is hereby incorporated into this item by reference.

(b) Financial Statement Schedule.

Not applicable.

(c) Opinions.

The opinion of Evercore Group L.L.C., financial advisor to the Pioneer Southwest Conflicts Committee, is attached as Annex B to the proxy statement/prospectus contained herein.

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Item 22.Undertakings

Undertakings.

The undersigned registrant hereby undertakes:

1.(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement: (i) to include any prospectus required by Section 10(a)(3) of the Securities Act; (ii) to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement (notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement); and (iii) to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement.

(2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

(4) That, for purposes of determining any liability under the Securities Act to any purchaser, each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration

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statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.

(5) That, for the purpose of determining liability of the registrant under the Securities Act to any purchaser in the initial distribution of the securities, in a primary offering of securities of the registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(i) any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

(ii) any free writing prospectus relating to the offering prepared by or on behalf of such registrant or used or referred to by the undersigned registrant;

(iii) the portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or their securities provided by or on behalf of such registrant; and

(iv) any other communication that is an offer in the offering made by such registrant to the purchaser.

(6) That, for purposes of determining any liability under the Securities Act, each filing of the Registrant’s annual report pursuant to Section 13(a) or 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in this registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(7) That prior to any public reoffering of the securities registered hereunder through use of a prospectus which is a part of this registration statement, by any person or party who is deemed to be an underwriter within the meaning of Rule 145(c), the registrant undertakes that such reoffering prospectus will contain the information called for by the applicable registration form with respect to reofferings by persons who may be deemed underwriters, in addition to the information called for by the other items of the applicable form.

(8) That every prospectus (i) that is filed pursuant to paragraph (5) above, or (ii) that purports to meet the requirements of Section 10(a)(3) of the Securities Act and is used in connection with an offering of securities subject to Rule 415, will be filed as a part of an amendment to this registration statement and will not be used until such amendment has become effective, and that for the purpose of determining liabilities under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(9) Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate

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jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

(10) To respond to requests for information that is incorporated by reference into the prospectus pursuant to Items 4, 10(b), 11 or 13 of this Form, within one business day of receipt of such request, and to send the incorporated documents by first class mail or other equally prompt means. This includes information contained in documents filed subsequent to the effective date of the registration statement through the date of responding to the request.

(11) To supply by means of a post-effective amendment all information concerning a transaction, and the company being acquired involved therein, that was not the subject of and included in this registration statement when it became effective.

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EXHIBIT INDEX

Exhibit
Number

Description of Exhibit

  2.1†Agreement and Plan of Merger, dated as of October 20, 2020, by and among Pioneer Natural Resources Company, Pearl First Merger Sub Inc., Pearl Second Merger Sub LLC, Pearl Opco Merger Sub LLC, Parsley Energy, Inc. and Parsley Energy, LLC. (attached as Annex A to the joint proxy statement/prospectus that forms a part of this Registration Statement on Form S-4 and incorporated herein by reference).
  3.1Amended and Restated Certificate of Incorporation of Pioneer Natural Resources Company, dated June  26, 1997, and Certificate of Amendment of the Amended and Restated Certificate of Incorporation, effective May 18, 2012 (incorporated by reference to Exhibit 3.1 to Pioneer Natural Resources Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2018, File No. 001-13245).
  3.2Sixth Amended and Restated Bylaws of Pioneer Natural Resources Company (incorporated by reference to Exhibit 3.1 to Pioneer Natural Resources Company’s Current Report on Form 8-K, File No. 001-13245, filed with the SEC on November 20, 2020).
  5.1*Opinion of Gibson, Dunn & Crutcher LLP regarding the legality of the securities being registered.
  8.1*Opinion of Vinson & Elkins L.L.P. regarding certain U.S. federal income tax matters.
10.1Voting and Support Agreement, dated as of October  20, 2020, by and between Q-Jagged Peak Energy Investment Partners, LLC and Pioneer Natural Resources Company (attached as Annex G to the joint proxy statement/prospectus that forms a part of this Registration Statement on Form S-4 and incorporated herein by reference).
10.2Voting and Support Agreement, dated as of October 20, 2020, by and between Bryan Sheffield and Pioneer Natural Resources Company (attached as Annex H to the joint proxy statement/prospectus that forms a part of this Registration Statement on Form S-4 and incorporated herein by reference).
23.1Consent of Ernst & Young LLP relating to Pioneer Natural Resources Company.
23.2Consent of KPMG LLP relating to Parsley Energy, Inc.
23.3Consent of Ernst & Young LLP relating to Jagged Peak Energy Inc.
23.4Consent of KPMG LLP relating to Jagged Peak Energy Inc.
23.5Consent of Netherland, Sewell & Associates, Inc. relating to Pioneer Natural Resources Company.
23.6Consent of Netherland, Sewell & Associates, Inc. relating to Parsley Energy, Inc.
23.7Consent of Ryder Scott Company, L.P. relating to Jagged Peak Energy LLC
23.8*Consent of Gibson, Dunn & Crutcher LLP (included in Exhibit 5.1).
23.9*Consent of Vinson & Elkins L.L.P. (included in Exhibit 8.1).
24.1Powers of Attorney for Pioneer Natural Resources Company (included on the signature page to this Registration Statement).
99.1*Form of Proxy Card for Special Meeting of Pioneer Natural Resources Company.
99.2*Form of Proxy Card for Special Meeting of Parsley Energy, Inc.
99.3Consent of Goldman Sachs & Co. LLC.
99.4Consent of Morgan Stanley & Co. LLC.
99.5Consent of Credit Suisse Securities (USA) LLC.
99.6Consent of Wells Fargo Securities, LLC.
99.7*Consent of Matt Gallagher to be named as a director upon the completion of the mergers.
99.8*Consent of A.R. Alameddine to be named as a director upon the completion of the mergers.

 

a.

Schedules and exhibits have been omitted pursuant to include any prospectus required by section 10(a)(3)Item 601(b)(2) of the Securities Act of 1933;

b.Regulation S-K. Pioneer agrees to reflect in the prospectus any facts or events arising after the effective date of this registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed withfurnish to the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement; and

c.to include any material information with respect to the plan of distribution not previously disclosed in this registration statement or any material change to such information in the registration statement.

2.That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

3.To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

4.That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser, each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or a prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.

5.That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by meanscopy of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offeromitted schedule or sell such securities to such purchaser: (i) any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424; (ii) any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant; (iii) the portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and (iv) any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.
exhibit upon request.

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6.That, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in this registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

7.That prior to any public reoffering of the securities registered hereunder through use of a prospectus which is a part of this registration statement, by any person or party who is deemed to be an underwriter within the meaning of Rule 145(c), the issuer undertakes that such reoffering prospectus will contain the information called for by the applicable registration form with respect to reofferings by persons who may be deemed underwriters, in addition to the information called for by the other items of the applicable form.

8.That every prospectus (i) that is filed pursuant to paragraph (5) above, or (ii) that purports to meet the requirements of Section 10(a)(3) of the Securities Act of 1933 and is used in connection with an offering of securities subject to Rule 415, will be filed as a part of an amendment to the registration statement and will not be used until such amendment is effective, and that, for purposes of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

9.Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer, or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question of whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

10.To respond to requests for information that is incorporated by reference into this prospectus pursuant to Items 4, 10(b), 11, or 13 of this form, within one business day of receipt of such request, and to send the incorporated documents by first class mail or other equally prompt means. This includes information contained in documents filed subsequent to the effective date of this registration statement through the date of responding to the request.

11.To supply by means of a post-effective amendment all information concerning a transaction, and the company being acquired involved therein, that was not the subject of and included in this registration statement when it became effective.
*

To be filed by amendment.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statementRegistration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Irving, State of Texas, on September16, 2013.November 23, 2020.

 

PIONEER NATURAL RESOURCES COMPANY
By: /S/    SCOTT D. SHEFFIELDs/ Richard P. Dealy
 Scott D. SheffieldRichard P. Dealy
 Chairman of the Board of DirectorsExecutive Vice President and Chief ExecutiveFinancial Officer


POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Scott D. Sheffield, Richard P. Dealy, Mark H. Kleinman and Frank W. Hall,Margaret M. Montemayor, and each of them, any of whom may act without the joinder of the other, as his or her true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all capacities, to sign any or all amendments (including pre-effective and post-effective amendments) to this Registration Statement, and any Registration Statement (including any amendment thereto) for this offering that is to be effective upon filing pursuant to Rule 462 under the Securities Act of 1933, and to file the same, with all exhibits thereto, and all other documents in connection therewith, with the Securities and Exchange Commission, and hereby grants to such attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or his, her or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed below by the following persons on behalf of the registrant and in the capacities andindicated on the date indicated.November 23, 2020.

 

Signature

  

Title

Date

/S/    SCOTTs/ Scott D. SHEFFIELDSheffield

Scott D. Sheffield

  

Chairman of the BoardDirector, President and

Chief Executive Officer

(Principal Executive Officer)principal executive officer)

September 16, 2013

/S/    TIMOTHY L. DOVE

Timothy L. Dove

President, Chief Operating Officer

and Director

September10, 2013

/S/    RICHARDs/ Richard P. DEALYDealy

Richard P. Dealy

  

Executive Vice President and

Chief Financial Officer

(Principal Financial Officer)principal financial officer)

September16, 2013

/S/    FRANK W. HALLs/ Margaret M. Montemayor

Frank W. HallMargaret M. Montemayor

  

Vice President and

Chief Accounting Officer

(Principal Accounting Officer)principal accounting officer)

September16, 2013

/S/    THOMAS D. ARTHURs/ J. Kenneth Thompson

Thomas D. ArthurJ. Kenneth Thompson

  

Chairman of the Board, Director

September 16, 2013

/S/    EDISONs/ Edison C. BUCHANANBuchanan

Edison C. Buchanan

  

Director

September 11, 2013

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/S/    ANDREW F. CATESs/ Phillip A. Gobe

Andrew F. CatesPhillip A. Gobe

  

Director

September 16, 2013

/S/s/ Larry R. HARTWELL GARDNER

R. Hartwell Gardner

Director

September 16, 2013

/S/    LARRY R. GRILLOTGrillot

Larry R. Grillot

  

Director

September 9, 2013

/S/    STACYs/ Stacy P. METHVINMethvin

Stacy P. Methvin

  

Director

September 9, 2013

/S/    CHARLES E. RAMSEY, JR.s/ Royce W. Mitchell

Charles E. Ramsey, Jr.Royce W. Mitchell

  

Director

September 16, 2013

/S/    FRANKs/ Frank A. RISCHRisch

Frank A. Risch

  

Director

September 16, 2013

/S/    JAMES KENNETH THOMPSONs/ Mona K. Sutphen

James Kenneth ThompsonMona K. Sutphen

  

Director

September 16, 2013

/S/    JIMs/ Phoebe A. WATSON

Jim A. Watson

Director

September 16, 2013

/S/    PHOEBE A. WOODWood

Phoebe A. Wood

  

Director

September 16, 2013

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INDEX TO EXHIBITS

Exhibit
Number

Exhibit

  2.1Agreement and Plan of Merger dated as of August 9, 2013, by and among Pioneer Natural Resources Company, Pioneer Natural Resources USA, Inc., PNR Acquisition Company, LLC, Pioneer Southwest Energy Partners L.P., and Pioneer Natural Resources GP LLC (included as Annex A to the proxy statement/prospectus forming a part of this registration statement and incorporated herein by reference).
3.1

/s/ Michael D. Wortley

Michael D. Wortley

  Amended and Restated Certificate of Incorporation of Pioneer Natural Resources Company (incorporated by reference to Exhibit 3.1 to Pioneer Natural Resources Company’s Registration Statement on Form S-4 (Registration No. 333-26951) filed with the SEC on June 26, 1997).
3.2Certificate of Amendment of the Amended and Restated Certificate of Incorporation of Pioneer Natural Resources Company effective May 18, 2012 (incorporated by reference to Exhibit 3.1 to Pioneer Natural Resources Company’s Current Report on Form 8-K (File No. 001-13245) filed with the SEC on May 18, 2012).
3.3Third Amended and Restated Bylaws of Pioneer Natural Resources Company (incorporated by reference to Exhibit 3.2 to Pioneer Natural Resources Company’s Current Report on Form 8-K (File No. 001-13245) filed with the SEC on May 18, 2012).
5.1#Opinion of Vinson & Elkins L.L.P. as to the legality of the securities being registered.
8.1#Opinion of Vinson & Elkins L.L.P. as to certain tax matters.
10.1Voting Agreement dated as of August 9, 2013, by and among Pioneer Natural Resources Company, Pioneer Natural Resources USA, Inc., PNR Acquisition Company, LLC, Pioneer Southwest Energy Partners L.P., and Pioneer Natural Resources GP LLC (incorporated by reference to Exhibit 10.1 to Pioneer Natural Resources Company’s Current Report on Form 8-K (File No. 001-13245) filed with the SEC on August 12, 2013).
23.1#Consent of Ernst & Young LLP (as to Pioneer Natural Resources Company).
23.2#Consent of Ernst & Young LLP (as to Pioneer Southwest Energy Partners L.P.).
23.3#Consent of Netherland, Sewell & Associates, Inc. (as to Pioneer Natural Resources Company).
23.4#Consent of Netherland, Sewell & Associates, Inc. (as to Pioneer Southwest Energy Partners L.P.).
23.5#Consent of Ryder Scott Company, L.P. (as to Pioneer Natural Resources Company).
23.6#Consent of Vinson & Elkins L.L.P. (contained in Exhibit 5.1 hereto).
23.7#Consent of Vinson & Elkins L.L.P. (contained in Exhibit 8.1 hereto).
24.1#Power of Attorney (included in the signature page hereto).
99.1#Consent of Evercore Group L.L.C.
99.2#Form of Proxy Card for the Pioneer Southwest Energy Partners L.P. Special Meeting.

Director

#Filed with this report.

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