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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K
[X]    Annual Report pursuant to SectionANNUAL REPORT PURSUANT TO SECTION 13 orOR 15(d) of the Securities Exchange Act ofOF THE SECURITIES EXCHANGE ACT OF 1934
For the Fiscal Year Ended December 31, 20162019
[  ]    Transition Report pursuant to SectionTRANSITION REPORT PURSUANT TO SECTION 13 orOR 15(d) of the Securities Exchange Act ofOF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
Commission File No. 1-13726
Chesapeake Energy CorporationCHESAPEAKE ENERGY CORPORATION
(Exact name of registrant as specified in its charter)
Oklahoma73-1395733
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
6100 North Western Avenue,
Oklahoma City, OklahomaOklahoma73118
(Address of principal executive offices)(Zip Code)
(405) 848-8000
(405) 848-8000(Registrant’s telephone number, including area code)
Securities Registered Pursuant to Section 12(b) of the Act:
Title of Each Class Trading Symbol(s)Name of Each Exchange on Which Registered
Common Stock, par value $0.01 New York Stock Exchange
7.25% Senior Notes due 2018New York Stock Exchange
Floating Rate Senior Notes due 2019CHK New York Stock Exchange
6.625% Senior Notes due 2020 CHK20ANew York Stock Exchange
6.875% Senior Notes due 2020CHK20 New York Stock Exchange
6.125% Senior Notes due 2021 CHK21New York Stock Exchange
5.375% Senior Notes due 2021CHK21A New York Stock Exchange
4.875% Senior Notes due 2022 CHK22New York Stock Exchange
5.75% Senior Notes due 2023 New York Stock Exchange
2.75% Contingent Convertible Senior Notes due 2035New York Stock Exchange
2.5% Contingent Convertible Senior Notes due 2037New York Stock Exchange
2.25% Contingent Convertible Senior Notes due 2038CHK23 New York Stock Exchange
4.5% Cumulative Convertible Preferred Stock CHK Pr DNew York Stock Exchange
Securities registered pursuant to Section 12(g) of the Act:
None
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. YES [X]     NO [ ]    Yes     No 
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Securities Exchange Act. YES [ ]    NO [X] YesNo
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YES [X]     NO [ ] Yes    No 
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). YES [X]     NO [ ] Yes    No 
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.   [X] 
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 an emerging growth company. See the definitions of "large accelerated filer",filer," "accelerated filer" andfiler," "smaller reporting company" and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large Accelerated Filer [X]  Accelerated Filer [ ]  Non-accelerated Filer [ ]
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 13(a) of the Exchange Act.


Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YES [ ]      NO [X]Yes    No 
The aggregate market value of our common stock held by non-affiliates on June 30, 2016,28, 2019, was approximately $3.3 billion.$2.2 billion. As of February 22, 2017,19, 2020, there were 906,830,9051,954,583,780 shares of our $0.01 par value common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE
Portions of the proxy statement for the 20172020 Annual Meeting of Shareholders are incorporated by reference in Part III.





CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
2016 ANNUAL REPORT ON FORM 10-K
TABLE OF CONTENTS


Page
 
 
 
 
 
  




Glossary of Oil and Gas Terms
The terms defined in this section are used throughout this report.
Bbl. One stock tank barrel, or 42 U.S. gallons liquid volume, used herein in reference to crude oil or other liquid hydrocarbons.
Bboe. One billion barrels of oil equivalent.
Bcf. One billion cubic feet of natural gas.
Bcfe. One billion cubic feet of natural gas equivalent.
Btu. British thermal unit, which is the heat required to raise the temperature of a one-pound mass of water from 58.5 to 59.5 degrees Fahrenheit.
Boe. Barrel of oil equivalent. Natural gas proved reserves and production are converted to boe at 14.73 psia and 60 degrees. Boe is based on six mcf of natural gas to one bbl of oil or one bbl of NGL. This ratio reflects an energy content equivalency and not a price or revenue equivalency. Despite holding this ratio constant at six mcf to one bbl, prices have historically often been higher or substantially higher for oil than natural gas on an energy equivalent basis, although there have been periods in which they have been lower or substantially lower.
Completion. The process of treating a drilled well followed by the installation of permanent equipment for the production of oil, natural gas or natural gas liquids, or in the case of a dry well, the reporting to the appropriate authority that the well has been abandoned.
Developed Acreage. The number of acres which are allocated or assignable to producing wells or wells capable of production.
Dry Well. A well found to be incapable of producing either oil or natural gas in sufficient quantities to justify completion as an oil or natural gas well.
Exploratory Well. A well drilled to find a new field or to find a new reservoir in a field previously found to be productive of oil or natural gas in another reservoir.
Formation. A succession of sedimentary beds that were deposited under the same general geologic conditions.
GAAP. Generally Accepted Accounting Principles in the United States.
Gross Acres or Gross Wells. The total acres or wells, as the case may be, in which a working interest is owned.
Mboe. One thousand barrels of oil equivalent.
Mcf. One thousand cubic feet.
Mmbbl. One million barrels of crude oil or other liquid hydrocarbons.
Mmboe. One million barrels of oil equivalent.
Mmbtu. One million btus.
Mmcf. One million cubic feet.
Natural Gas Liquids (NGL). Hydrocarbons in natural gas that are separated from the gas as liquids through the process of absorption, condensation, adsorption or other methods in gas processing or cycling plants. Natural gas liquids primarily include ethane, propane, butane, isobutene, pentane, hexane and natural gasoline.
Net Acres or Net Wells. The sum of the fractional working interests owned in gross acres or gross wells.
NYMEX. New York Mercantile Exchange.
Play. A term applied to a portion of the exploration and production cycle following the identification by geologists and geophysicists of areas with potential oil, natural gas and NGL reserves.

Present Value of Estimated Future Net Revenues or PV-10 (non-GAAP). When used with respect to oil, natural gas and NGL reserves, present value of estimated future net revenues, or PV-10, means the estimated future gross revenue to be generated from the production of proved reserves, net of estimated production and future development costs, using prices calculated as the average oil and natural gas price during the preceding 12-month period prior to the end of the current reporting period, (determined as the unweighted arithmetic average of prices on the first day of each month within the 12-month period) and costs in effect at the determination date (unless such costs are subject to change pursuant to contractual provisions), without giving effect to non-property related expenses such as general and administrative expenses, debt service and future income tax expense or to depreciation, depletion and amortization, discounted using an annual discount rate of 10%.
Price Differential. The difference in the price of oil, natural gas or NGL received at the sales point and the NYMEX price.
Productive Well. A well that is not a dry well. Productive wells include producing wells and wells that are mechanically capable of production.
Proved Developed Reserves. Proved reserves that can be expected to be recovered through existing wells with existing equipment and operating methods or in which the cost of the required equipment is relatively minor compared to the cost of a new well.
Proved Properties. Properties with proved reserves.
Proved Reserves. As used in this report, proved reserves has the meaning given to such term in Rule 4-10(a)(22) of Regulation S-X, which states in part proved oil and natural gas reserves are those quantities of oil and natural 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.
Proved Undeveloped Reserves (PUDs). Proved reserves that are expected to be recovered from new wells on undrilled acreage, or from existing wells where a relatively major expenditure is required. Reserves on undrilled acreage are limited to those directly offsetting development spacing areas that are reasonably certain of production when drilled, unless evidence using reliable technology exists that establishes reasonable certainty of economic producibility at greater distances.
Realized and Unrealized Gains and Losses on Oil, Natural Gas and NGL Derivatives. Realized gains and losses include the following items:(i) settlements and accruals for settlements of non-designated derivatives related to current period notional production revenues, (ii) prior period settlements for option premiums and for early-terminated derivatives originally scheduled to settle against current period notional production revenues, and (iii) gains and losses related to de-designated cash flow hedges originally designated to settle against current period notional production revenues. Unrealized gains and losses include the change in fair value of open derivatives scheduled to settle against future period notional production revenues (including current period settlements for option premiums and early-terminated derivatives) offset by amounts reclassified as realized gains and losses during the period. Although we no longer designate our derivatives as cash flow hedges for accounting purposes, we believe these definitions are useful to management and investors in determining the effectiveness of our price risk management program.
Realized and Unrealized Gains and Losses on Interest Rate Derivatives. Realized gains and losses include interest rate derivative settlements related to current period interest and the effect of gains and losses on early-terminated trades. Settlements of early-terminated trades are reflected in realized gains and losses over the original life of the hedged item. Unrealized gains and losses include changes in the fair value of open interest rate derivatives offset by amounts reclassified to realized gains and losses during the period.
Reservoir. A porous and permeable underground formation containing a natural accumulation of producible oil and/or natural gas that is confined by impermeable rock or water barriers and is individual and separate from other reservoirs.
Royalty Interest. An interest in an oil and natural gas property entitling the owner to a share of oil, natural gas or NGL production free of costs of production.

Seismic. An exploration method of sending energy waves or sound waves into the earth and recording the wave reflections to indicate the type, size, shape and depth of subsurface rock formations.
Shale. Fine-grained sedimentary rock composed mostly of consolidated clay or mud. Shale is the most frequently occurring sedimentary rock.
SEC. The United States Securities and Exchange Commission.
Standardized Measure. The discounted future net cash flows relating to proved reserves based on the means of the estimated future gross revenue to be generated from the production of proved reserves, net of estimated production and future development costs, using prices calculated as the average oil and natural gas price during the preceding 12-month period prior to the end of the current reporting period (determined as the unweighted arithmetic average of prices on the first day of each month within the 12-month period). The standardized measure differs from the PV-10 measure only because the former includes the effects of estimated future income tax expenses.
Undeveloped Acreage. Acreage on which wells have not been drilled or completed to a point that would permit the production of economic quantities of oil and natural gas regardless of whether the acreage contains proved reserves.
Unproved Properties. Properties with no proved reserves.
Volumetric Production Payment (VPP). As we use the term, a volumetric production payment represents a limited-term overriding royalty interest in oil and natural gas reserves that: (i) entitles the purchaser to receive scheduled production volumes over a period of time from specific lease interests; (ii) is free and clear of all associated future production costs and capital expenditures; (iii) is nonrecourse to the seller (i.e., the purchaser's only recourse is to the reserves acquired); (iv) transfers title of the reserves to the purchaser; and (v) allows the seller to retain the remaining reserves, if any, after the scheduled production volumes have been delivered.
WildHorse. WildHorse Resource Development Corporation.Immediately following the completion of our acquisition of WildHorse (the “First Merger”), WildHorse merged with and into Brazos Valley Longhorn, L.L.C., a newly formed Delaware limited liability company and wholly owned subsidiary of Chesapeake, which, together with the First Merger, we refer to as the “WildHorse Merger.” For ease of reference, we use the term “WildHorse” to refer to WildHorse Resource Development Corporation prior to the acquisition and Brazos Valley Longhorn, L.L.C., “Brazos Valley Longhorn” or “BVL” after the acquisition, as applicable.
Working Interest. The operating interest which gives the owner the right to drill, produce and conduct operating activities on the property and a share of production.


Forward-Looking Statements
This report includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 (the “Exchange Act”). Forward-looking statements include our current expectations or forecasts of future events, including matters relating to our ability to meet debt service requirement, cost-cutting measures, reductions in expenditures, refinancing transactions, capital exchange transactions, asset divestitures, reductions in capital expenditures, operational efficiencies, cost savings due to operational and capital efficiencies related to the WildHorse Merger and the other items discussed in the Introduction to Item 7 of Part II of this report. In this context, forward-looking statements often address our expected future business and financial performance and financial condition, and often contain words such as "expect," “could,” “may,” "anticipate," "intend," "plan," “ability,” "believe," "seek," "see," "will," "would," “estimate,” “forecast,” "target," “guidance,” “outlook,” “opportunity” or “strategy.”
Although we believe the expectations and forecasts reflected in our forward-looking statements are reasonable, they are inherently subject to numerous risks and uncertainties, most of which are difficult to predict and many of which are beyond our control. No assurance can be given that such forward-looking statements will be correct or achieved or that the assumptions are accurate or will not change over time. Particular uncertainties that could cause our actual results to be materially different than those expressed in our forward-looking statements include:
our ability to comply with the covenants under our revolving credit facility and other indebtedness;
the volatility of oil, natural gas and NGL prices, which are affected by general economic and business conditions, as well as increased demand for (and availability of) alternative fuels and electric vehicles;
uncertainties inherent in estimating quantities of oil, natural gas and NGL reserves and projecting future rates of production and the amount and timing of development expenditures;
our ability to replace reserves and sustain production;
drilling and operating risks and resulting liabilities;
our ability to generate profits or achieve targeted results in drilling and well operations;
the limitations our level of indebtedness may have on our financial flexibility;
our inability to access the capital markets on favorable terms;
the availability of cash flows from operations and other funds to finance reserve replacement costs or satisfy our debt obligations;
adverse developments or losses from pending or future litigation and regulatory proceedings, including royalty claims;
legislative and regulatory initiatives addressing environmental concerns, including initiatives addressing the impact of global climate change or further regulating hydraulic fracturing, methane emissions, flaring or water disposal;
terrorist activities and/or cyber-attacks adversely impacting our operations;
effects of acquisitions and dispositions, including our acquisition of WildHorse and our ability to realize related synergies and cost savings;
effects of purchase price adjustments and indemnity obligations; and
other factors that are described under Risk Factors in Item 1A of this Form 10-K.
We caution you not to place undue reliance on the forward-looking statements contained in this report, which speak only as of the filing date, and we undertake no obligation to update this information. We urge you to carefully review and consider the disclosures in this report and our other filings with the SEC that attempt to advise interested parties of the risks and factors that may affect our business.

PART I
Item 1.Business
Unless the context otherwise requires, references to “Chesapeake”, the “Company”, “us”, “we” and “our” in this report are to Chesapeake Energy Corporation together with its subsidiaries. Our principal executive offices are located at 6100 North Western Avenue, Oklahoma City, Oklahoma 73118, and our main telephone number at that location is (405) 848-8000. Definitions of oil and gas industry terms appearing in this report can be found under Glossary of Oil and Gas Terms beginning on page 18.
Our Business
We own interestsare an independent exploration and production company engaged in approximately 22,700the acquisition, exploration and development of properties to produce oil, and natural gas wells and produced an average of approximately 575 mboe per day in the 2016 fourth quarter, net to our interest.NGL from underground reservoirs. We haveown a large and geographically diverse resource baseportfolio of onshore U.S. unconventional liquids and natural gas assets, including interests in approximately 13,500 oil and liquids assets.natural gas wells. We have leadingsignificant positions in the liquids-rich resource plays of the Eagle Ford Shale in South Texas, the Utica Shale in Ohio, the Anadarko Basin in northwestern Oklahoma and the stacked pay in the Powder River Basin in Wyoming.Wyoming and the Anadarko Basin in northwestern Oklahoma. Our natural gas resource plays are the Haynesville/Bossier Shales in northwestern Louisiana and East Texas and the Marcellus Shale in the northern Appalachian Basin in Pennsylvania. We also ownPennsylvania and the Haynesville/Bossier Shales in northwestern Louisiana.
In February 2019, we acquired WildHorse Resource Development Corporation, an oil and natural gas marketing business.
The Company's estimated proved reservescompany with operations in the Eagle Ford Shale and Austin Chalk formations in southeast Texas, for approximately 717.4 million shares of our common stock and $381 million in cash, and the assumption of WildHorse’s debt of $1.4 billion as of December 31, 2016, were 1.708 bboe, an increasethe acquisition date of 204 mmboe or 14%, from 1.504 bboe asFebruary 1, 2019. The acquisition of December 31, 2015. The increase in estimated proved reserves included 70 mmboeWildHorse expands our oil growth platform and accelerates our progress toward our strategic and financial goals of downward revisions resulting primarily from lower average oilenhancing our margins, achieving sustainable free cash flow generation and natural gas prices offset by 580 mmboe of extensions and discoveries and 113 mmboe of upward revisions resulting from changesreducing our net debt to previous estimates as further discussed below in Oil,Natural Gas and NGL Reserves and in Supplemental Disclosures About Oil, Natural Gas and NGL Producing Activities included in Item 8 of Part II of this report. In 2016, we produced 233 mmboe, divested 241 mmboe and acquired 55 mmboe of estimated proved reserves. Before basis differential adjustments, oil and natural gas prices used in estimating proved reserves decreased as of December 31, 2016, compared to December 31, 2015, using the trailing 12-month average prices required by the Securities and Exchange Commission (SEC). Oil prices decreased by $7.53 per bbl or 15%, to $42.75 per bbl from $50.28 per bbl. Natural gas prices decreased $0.09 per mcf, or 3%, to $2.49 per mcf from $2.58 per mcf. Proved developed reserves represented 70% of our proved reserves as of December 31, 2016, compared to 84% as of December 31, 2015.
Our daily production for 2016 averaged 635 mboe, a decrease of 44 mboe, or 6%, from the 679 mboe of daily production for 2015, and consisted of approximately 90,800 bbls of oil (14% on an oil equivalent basis), approximately 2.9 bcf of natural gas (75% on an oil equivalent basis) and approximately 66,700 bbls of NGL (11% on an oil equivalent basis). Our average daily oil production decreased by 20% year over year primarily as a result of the sale of certain of our Mid-Continent assets in 2015 and 2016 as well as a significant reduction in drilling activity. Natural gas production decreased by 2% and NGL production decreased by 13%.EBITDAX ratio.
Information About Us
We make available, free of charge on our website at chk.com, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and any amendments to those reports as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. From time to time, we also post announcements, updates, events, investor information and presentations on our website in addition to copies of all recent news releases. Documents and information on our website are not incorporated by reference herein.
The SEC maintains a website at www.sec.gov that contains reports, proxy and information statements, and other information regarding issuers, including Chesapeake, that file electronically with the SEC.

Business Strategy
Chesapeake’sOur strategy is to create shareholder value through the development of our significant positions in premier U.S. onshore resource plays. In addition, weWe continue to focus our financial strategy on reducing debt, andincreasing cash provided by operating activities, improving margins. We applymargins through financial discipline and operating efficiencies and maintaining exceptional environmental and safety performance. To accomplish these goals, we intend to all aspects ofallocate our business with goals of increasing financialcapital expenditures to projects we believe offer the highest return and operational flexibility. Our capital program is focused on investments that can improve our cash flow generating abilityvalue regardless of the commodity price environment. We planenvironment, to increase our capital expenditures in 2017 over 2016 levels to capture high rate of return opportunities in our oil and natural gas portfolio. These opportunities are a result of improved capital and operating efficiencies, including improved well performance, decreaseddeploy leading drilling and completion technology throughout our portfolio, and to take advantage of acquisition and divestiture opportunities to strengthen our cost structure and our portfolio. Increasing our margins means not only increasing our absolute level of cash flow from operations, but also increasing our cash flow from operations generated per barrel of oil equivalent production. We continue to seek opportunities to reduce cash costs per footbarrel of oil equivalent production (production, gathering, processing and decreased operating expenditures. We expecttransportation and general and administrative) through operational efficiencies, including improving our anticipated production increases in the 2017 second half and into 2018 will position us to balance capital expenditures and operating cash flow in 2018 and beyond.volumes from existing wells.
In 2016, we amended our senior secured revolving bank credit facility, issued a $1.5 billion secured term loan, issued $1.25 billion in 5.5% convertible senior notes due 2026, issued $1.0 billion in unsecured 8.00% senior notes due 2025 and sold approximately $1.4 billion of assets that did not fit our strategic priorities to increase liquidity and retire or refinance near-term maturities of debt. In addition, in 2016 and through February 24, 2017, we strengthened our balance sheet and improved our liquidity position by refinancing, exchanging or repurchasing, where possible at a discount, $4.104 billion of our debt and $1.4 billion liquidation value of our preferred equity instruments.
Our substantial inventory of hydrocarbon resources, including our undeveloped acreage, provides a strong foundation to create future value. Our focus on efficiencies and operational improvements has led to increased well productivity from longer laterals, improved completion techniques and base production improvements. Building on our strong and diverse asset base through increasing production and cash flow and further delineating our emerging new development opportunities, weWe believe that our dedication to financial discipline, the flexibility and efficiency of our capital program and our continued focus on safety and environmental stewardship will provide opportunities to create value for Chesapeakeus and its stakeholders in 2017 and beyond.our shareholders.

Operating DivisionsAreas
Chesapeake focuses itsWe focus our exploration, development, acquisition and production efforts in the twosix geographic operating divisionsareas described below.
Southern DivisionMarcellus - Northern Appalachian Basin in Pennsylvania.
Haynesville - Northwestern Louisiana (Gulf Coast). Includes the
Eagle Ford Shale- South Texas.
Brazos Valley - Southeast Texas assets acquired in South Texas, theour WildHorse acquisition on February 1, 2019.
Powder River Basin - Stacked pay in Wyoming.
Mid-Continent - Anadarko Basin in northwestern Oklahoma, the Haynesville/Bossier Shales in northwestern Louisiana and East Texas and, prior to October 31, 2016, the Barnett Shale in the Fort Worth Basin in north central Texas.
Northern Division. Includes the Utica Shale in Ohio, the Marcellus Shale in the northern Appalachian Basin in Pennsylvania and the stacked pay in the Powder River Basin in Wyoming.Oklahoma.
Well Data
As of December 31, 2016,2019, we held an interest in approximately 22,70013,500 gross (8,800(6,800 net) productive wells, including 19,10011,400 properties in which we held a working interest and 3,6002,100 properties in which we held an overriding or royalty interest. Of the wells11,400 properties in which we had a working interest, 14,500we operated 8,500 wells, of which 7,000 gross (6,700(4,000 net), were classified as productive natural gas wells and 4,400 gross (2,800 net) were classified as natural gas productive wells and 4,600 gross (2,100 net) were classified as oil productive wells. Chesapeake operated approximately 10,900 of its 19,100 productive wells in which we had a working interest. During 2016,2019, we drilled or participated in 382370 gross (235(273 net) wells as operator and participated in another 5349 gross (4(3 net) wells completed by other operators. We operate approximately 93%97% of our current daily production volumes.

Drilling Activity
The following table sets forth the wells we drilled or participated in during the periods indicated. In the table, "gross" refers to the total wells in which we had a working interest and "net" refers to gross wells multiplied by our working interest.interest:
 2016 2015 2014 2019 2018 2017
 Gross % Net % Gross % Net % Gross % Net % Gross % Net % Gross % Net % Gross % Net %
Development:                                                
Productive 431
 99
 236
 99
 806
 99
 423
 100
 1,784
 99
 629
 99
 414
 100
 271
 100
 363
 99
 227
 99
 462
 99
 292
 99
Dry 1
 1
 1
 1
 1
 1
 
 
 3
 1
 1
 1
 
 
 
 
 2
 1
 1
 1
 4
 1
 2
 1
Total 432
 100
 237
 100
 807
 100
 423
 100
 1,787
 100
 630
 100
 414
 100
 271
 100
 365
 100
 228
 100
 466
 100
 294
 100
                                                
Exploratory:                                                
Productive 3
 100
 2
 100
 7
 100
 5
 100
 145
 95
 46
 88
 1
 20
 1
 20
 10
 83
 9
 82
 2
 100
 2
 100
Dry 
 
 
 
 
 
 
 
 8
 5
 6
 12
 4
 80
 4
 80
 2
 17
 2
 18
 
 
 
 
Total 3
 100
 2
 100
 7
 100
 5
 100
 153
 100
 52
 100
 5
 100
 5
 100
 12
 100
 11
 100
 2
 100
 2
 100

The following table shows the wells we drilled or participated in by operating division:area:
  2016 2015 2014
   Gross Wells Net Wells Gross Wells Net Wells Gross Wells Net Wells
             
Southern 375
 212
 537
 258
 1,448
 473
Northern 60
 27
 277
 170
 492
 209
Total 435
 239
 814
 428
 1,940
 682
  2019 2018 2017
   Gross Wells Net Wells Gross Wells Net Wells Gross Wells Net Wells
Marcellus 44
 22
 52
 23
 43
 21
Haynesville 22
 16
 30
 21
 37
 34
Eagle Ford 150
 85
 162
 98
 180
 106
Brazos Valley 83
 79
 
 
 
 
Powder River Basin 75
 57
 41
 34
 25
 21
Mid-Continent 40
 12
 52
 32
 114
 58
Utica 
 
 40
 31
 69
 56
Other 5
 5
 
 
 
 
Total 419
 276
 377
 239
 468
 296
As of December 31, 2016,2019, we had 140123 gross (93(70 net) wells in the process of being drilled or completed.


Production Volumes, Sales Prices, Production Expenses and Gathering, Processing and Transportation Expenses
The following table sets forth information regarding our net production volumes, oil, natural gas and NGL sales, average sales pricesprice received for our production, average sales price of our production combined with our realized gains or losses on derivatives and production and gathering, processing and transportation expenses per boe for the periods indicated:
  Years Ended December 31,
  2016 2015 2014
Net Production:      
Oil (mmbbl) 33
 42
 42
Natural gas (bcf) 1,049
 1,070
 1,095
NGL (mmbbl) 24
 28
 33
Oil equivalent (mmboe)(a)
 233
 248
 258
       
Average Sales Price (excluding gains (losses) on derivatives):      
Oil ($ per bbl) $40.65
 $45.77
 $89.41
Natural gas ($ per mcf) $2.05
 $2.31
 $4.14
NGL ($ per bbl) $14.76
 $14.06
 $30.95
Oil equivalent ($ per boe) $16.63
 $19.23
 $36.21
       
Average Sales Price (including realized gains (losses) on derivatives):    
Oil ($ per bbl) $43.58
 $66.91
 $85.04
Natural gas ($ per mcf) $2.20
 $2.72
 $3.97
NGL ($ per bbl) $14.43
 $14.06
 $30.95
Oil equivalent ($ per boe) $17.66
 $24.54
 $34.74
       
Expenses ($ per boe):      
Oil, natural gas and NGL production $3.05
 $4.22
 $4.69
Oil, natural gas and NGL gathering, processing and transportation $7.98
 $8.55
 $8.43

(a)Oil equivalent is based on six mcf of natural gas to one barrel of oil or one barrel of NGL. This ratio reflects an energy content equivalency and not a price or revenue equivalency.
  Years Ended December 31,
  2019 2018 2017
Net Production:      
Oil (mmbbl) 43
 33
 33
Natural gas (bcf) 728
 832
 878
NGL (mmbbl) 12
 19
 21
Oil equivalent (mmboe) 177
 190
 200
       
Average Sales Price of Production:      
Oil ($ per bbl) $59.16
 $67.25
 $51.03
Natural gas ($ per mcf) $2.45
 $2.99
 $2.76
NGL ($ per bbl) $15.62
 $26.50
 $23.18
Oil equivalent ($ per boe) $25.57
 $27.27
 $22.88
       
Average Sales Price (including realized gains (losses) on derivatives):    
Oil ($ per bbl) $60.00
 $57.42
 $53.19
Natural gas ($ per mcf) $2.60
 $3.00
 $2.75
NGL ($ per bbl) $15.62
 $25.84
 $22.98
Oil equivalent ($ per boe) $26.42
 $25.56
 $23.17
       
Expenses ($ per boe):      
Oil, natural gas and NGL production $2.94
 $2.50
 $2.59
Oil, natural gas and NGL gathering, processing and transportation $6.13
 $7.35
 $7.36


Oil, Natural Gas and NGL Reserves
The tables below set forth information as of December 31, 2016,2019, with respect to our estimated proved reserves, the associated estimated future net revenue, and present value (discounted at an annual rate of 10%) of estimated future net revenue before and after future income taxes (standardized measure). Neither the pre-tax present value of estimated future net revenue (“PV-10”) and the standardized measure of discounted future net cash flows (“standardized measure”). None of the estimated future net revenue, PV-10 nor the after-tax standardized measure isare intended to represent the current market value of the estimated oil, natural gas and NGL reserves we own. All of our estimated reserves are located within the United States.
 December 31, 2016 December 31, 2019
 Oil Natural Gas NGL Total Oil Natural Gas NGL Total
 (mmbbl) (bcf) (mmbbl) (mmboe) (mmbbl) (bcf) (mmbbl) (mmboe)
Proved developed 200
 5,126
 134
 1,189
 201
 3,377
 82
 846
Proved undeveloped 199
 1,370
 92
 519
 157
 3,189
 38
 726
Total proved(a)
 399
 6,496
 226
 1,708
 358
 6,566
 120
 1,572
        
 
Proved
Developed
 
Proved
Undeveloped
 
Total
Proved
 ($ in millions)
Estimated future net revenue(b)
 $6,415
 $2,999
 $9,414
Present value of estimated future net revenue(b)
 $3,687
 $718
 $4,405
Standardized measure(b)(c)
 $4,379

Operating Division Oil Natural
Gas
 NGL Oil Equivalent 
Proved
Reserves
 
Present
Value
 
  (mmbbl) (bcf) (mmbbl) (mmboe) % ($ millions) 
Southern 363
 3,045
 131
 1,001
 59
 $3,279
 
Northern 36
 3,451
 95
 707
 41
 1,126
 
Total 399
 6,496
 226
 1,708
 100% $4,405
(b) 
  
Proved
Developed
 
Proved
Undeveloped
 
Total
Proved
  ($ in millions)
Estimated future net revenue(b)
 $10,488
 $6,656
 $17,144
Present value of estimated future net revenue (PV-10)(b)
 $6,341
 $2,674
 $9,015
Standardized measure(b)
 $9,000

(a)Includes 1 mmbblMarcellus, Eagle Ford, Haynesville and Brazos Valley accounted for approximately 42%, 19%, 18%, and 14% respectively, of oil, 23 bcfour estimated proved reserves by volume as of natural gas and 2 mmbbls of NGL reserves owned by the Chesapeake Granite Wash Trust, of which 1 mmbbl of oil, 12 bcf of natural gas and 1 mmbbl of NGL are attributable to noncontrolling interest holders.December 31, 2019.
(b)Estimated future net revenue represents the estimated future gross revenue to be generated from the production of proved reserves, net of estimated production and future development costs, using pricespricing differentials and costs under existing economic conditions as of December 31, 2016.2019, and assuming commodity prices as set forth below. For the purpose of determining prices used in our reserve reports, we used the unweighted arithmetic average of the prices on the first day of each month within the 12-month period ended December 31, 2016.2019. The prices used in our reserve reportsPV-10 measure were $42.75 per bbl$55.69 of oil and $2.49 per mcf$2.58 of natural gas, before basis differential adjustments. These prices should not be interpreted as a prediction of future prices, nor do they reflect the value of our commodity derivative instruments in place as of December 31, 2016.2019. The amounts shown do not give effect to non-property-related expenses, such as corporate general and administrative expenses and debt service, or to depreciation, depletion and amortization. The present value of estimated future net revenue typically differs from the standardized measure only because the former does not include the effects of estimated future income tax expenses ($26expense of $15 million as of December 31, 2016).2019.
Management uses estimated future net revenue,PV-10, which is calculated without deducting estimated future income tax expenses, and the present value thereof as a measure of the value of the Company's current proved reserves and to compare relative values among peer companies. We also understand that securities analysts and rating agencies use this measure in similar ways. While estimated future net revenue and the present value thereof are based on prices, costs and discount factors which aremay be consistent from company to company, the standardized measure of discounted future net cash flows is dependent on the unique tax situation of each individual company. PV-10 should not be considered in isolation or as a substitute for the standardized measure of discounted future net cash flows or any other measure of a company's financial or operating performance presented in accordance with GAAP.
(c)
Additional information on the standardized measure is presented in Supplemental Disclosures About Oil, Natural Gas and NGL Producing Activities included in Item 8 of Part II of this report.
A comparison of the standardized measure of discounted future net cash flows to PV-10 is presented above. Neither PV-10 nor the standardized measure of discounted future net cash flows purport to represent the fair value of our proved oil and gas reserves.


As of December 31, 2016,2019, our proved reserve estimates included 519726 mmboe of reserves classified as proved undeveloped, compared to 242700 mmboe as of December 31, 2015.2018. Presented below is a summary of changes in our proved undeveloped reserves (PUDs) for 2016.2019:
  Total
  (mmboe)
Proved undeveloped reserves, beginning of period 242700

Extensions and discoveries 477185

Revisions of previous estimates (78128)
Developed (118)
Sale of reserves-in-place(4167)
Purchase of reserves-in-place 136

Proved undeveloped reserves, end of period 519726

As of December 31, 2016, there2019, all PUDs were no PUDs that had remained undeveloped forplanned to be developed within five years or more.of original recording. In 2016,2019, we invested approximately $312 million$1.2 billion to convert 118167 mmboe of PUDs to proved developed reserves. In 2017,2020, we estimate that we will invest approximately $606 million$1.4 billion for PUD conversion. The downward revisions of 78We added 185 mmboe of PUDs in 2016 were related to a 34 mmboe reduction due to lower commodity prices and a 44 mmboe reduction resulting primarily from removing PUDs where it was determined development would occur outside of the five year development plan. Our proved undeveloped reserves through extensions and discoveries included 477primarily due to an updated five-year development plan. We recorded a downward revision of 128 mmboe of reserves that resulted from improved drillingprevious estimates due to lateral length adjustments, performance, updates to our five-year development plan and operating efficiencies, including the impact from extended laterals.changes in commodity prices.
The future net revenue attributable to our estimated PUDs of $3.0was $6.7 billion and the present value was $2.7 billion as of December 31, 2016, and the $718 million present value thereof, have been2019. These values were calculated assuming that we will expend approximately $2.9$5 billion to develop these reserves ($6061.4 billion in 2020, $1.3 billion in 2021, $1.0 billion in 2022, $744 million in 2017, $5502023 and $566 million in 2018, $1.086 billion in 2019, $527 million in 2020 and $94 million in 2021), although the2024). The amount and timing of these expenditures will depend on a number of factors, including actual drilling results, service costs, commodity prices and the availability of capital. Chesapeake'sOur developmental drilling schedules are subject to revision and reprioritization throughout the year resulting from unknowable factors such as unexpected developmental drilling results, title issues and infrastructure availability or constraints.
Our annual net decline rate on current proved producing properties is projected to be 31% in 2017, 22% in 2018, 17% in 2019, 14% in 2020 and 12% in 2021. Of our 1.189 bboe846 mmboe of proved developed reserves as of December 31, 2016,2019, approximately 12613 mmboe, or 11%2%, were non-producing.
Chesapeake'sOur ownership interest used for calculating proved reserves and the associated estimated future net revenue assumes maximum participation by other parties to our farm-out and participation agreements. SEC pricing used for calculating the estimated future net revenue attributable to our proved reserves does not reflect actual market prices for oil and natural gas production sold subsequent to December 31, 2016.
The Company'sOur estimated proved reserves and the standardized measure of discounted future net cash flows of the proved reserves as of December 31, 2016, 20152019, 2018 and 2014,2017, along with the changes in quantities and standardized measure of the reserves for each of the three years then ended, are shown in Supplemental Disclosures About Oil, Natural Gas and NGL Producing Activities included in Item 8 of Part II of this report. No estimates of proved reserves comparable to those included herein have been included in reports to any federal agency other than the SEC.
There are numerous uncertainties inherent in estimating quantities of proved reserves and in projecting future rates of production and timing of development expenditures, including many factors beyond our control. The reserve data representrepresents only estimates. Reserve engineering is a subjective process of estimating underground accumulations of oil and natural gas that cannot be measured exactly, and the accuracy of any reserve estimate is a function of the quality of available data and of engineering and geological interpretation and judgment. As a result, estimates made by different engineers often vary. In addition, results of drilling, testing and production subsequent to the date of an estimate may justify revision of these estimates, and these revisions may be material. Accordingly, reserve estimates often differ from the actual quantities of oil, natural gas and NGL that are ultimately recovered. Furthermore, the estimated future net revenue from proved reserves and the associated present value are based upon certain assumptions, including prices, future production levels and costs that may not prove correct. Future prices and costs may be materially higher or lower than the prices and costs as of the date of any estimate. See Supplemental Disclosures About Oil, Natural Gas and NGL Producing Activities included in Item 8 of this report for further discussion of our reserve quantities.


Reserves Estimation
Chesapeake'sOur Corporate Reserves Department prepared approximately 30%19% by volume, and approximately 17%15% by value, of our estimated proved reserves disclosed in this report. Those estimates were based upon the best available production, engineering and geologic data.
Chesapeake'sOur Director – Corporate Reserves, is the technical person primarily responsible for overseeing the preparation of the Company'sour reserve estimates. Hisestimates and for coordinating any reserves work conducted by a third-party engineering firm. Her qualifications include the following:
26over 17 years of practical experience working for majorin the oil companies, including 18and gas industry, with approximately 15 years in reservoir engineering responsible for estimation and evaluation of reserves;engineering;
Bachelor of Science degree in Geology and Environmental Sciences;
Master’s Degree in Petroleum and Natural Gas Engineering;
registered professional engineer in the state of Texas;Executive MBA; and
member in good standing of the Society of Petroleum Engineers.
We ensure that the key members of our Corporate Reserves Department have appropriate technical qualifications to oversee the preparation of reserves estimates. Each of our Corporate Reserves AdvisorsEngineers has more than 30 years ofsignificant engineering experience in reserve estimation. Our engineering technicians have a minimum of a four-year degree in mathematics, economics, finance or other technical/business/science field. We maintain a continuous education program for our engineers and technicians on new technologies and industry advancements as well as refresher training on basic skills and analytical techniques.
We maintain internal controls such as the following to ensure the reliability of reserves estimations:
We follow comprehensive SEC-compliant internal policies to estimate and report proved reserves. Reserve estimates are made by experienced reservoir engineers or under their direct supervision. All material changes are reviewed and approved by Corporate Reserves Advisors.Engineers.
The Corporate Reserves Department reviews the Company'sour proved reserves at the close of each quarter.
Each quarter, Corporate Reserves Department managers,Reservoir Managers, the Director – Corporate Reserves, the Vice Presidents of our business units, the DirectorVice President of Corporate and Strategic Planning and the Executive Vice President – Exploration and Production review all significant reserves changes and all new proved undeveloped reserves additions.    
The Corporate Reserves Department reports independently of our operating divisions.operations.
The five yearfive-year PUD development plan is reviewed and approved annually by the Director of Corporate Reserves and the DirectorVice President of Corporate and Strategic Planning.
We engaged Software Integrated Solutions, Division of Schlumberger Technology Corporation, a third-party engineering firm, to prepare approximately 70%81% by volume, and approximately 83%85% by value, of our estimated proved reserves as of December 31, 2016.2019. A copy of the report issued by the engineering firm is filed with this report as ExhibitsExhibit 99.1. The qualifications of the technical person at the firm primarily responsible for overseeing the preparation of the Company'sour reserve estimates are set forth below.
over 30 years of practical experience in the estimation and evaluation of reserves;
registered professional geologist license in the Commonwealth of Pennsylvania;
member in good standing of the Society of Petroleum Engineers and the Society of Petroleum Evaluation Engineers; and
Bachelor of Science degree in Geological Sciences.

Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development
The following table sets forth historical costs incurred in oil and natural gas property acquisition, exploration and development activities during the periods indicated:
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Acquisition of Properties:      
Proved properties $403
 $
 $214
Unproved properties 403
 454
 1,224
Exploratory costs 52
 112
 421
Development costs 1,312
 2,941
 4,204
Costs incurred(a)(b)
 $2,170
 $3,507
 $6,063

(a)Exploratory and development costs are net of joint venture drilling and completion cost carries of $51 million and $679 million in 2015 and 2014, respectively.
(b)Includes capitalized interest and asset retirement obligations as follows:
Capitalized interest $242
 $410
 $604
Asset retirement obligations $(57) $(15) $39
A summary of our exploration and development, acquisition and divestiture activities in 2016 by operating division is as follows:
  Gross Wells Drilled  Net Wells Drilled Exploration and Development Acquisition of Unproved Properties Acquisition of Proved Properties  Sales of Unproved Properties 
Sales of
 Proved
Properties(a)
 
Total(b)
  ($ in millions)
Southern 375
 212
 $1,169
 $252
 $277
 $(432) $(849) $417
Northern 60
 27
 195
 151
 126
 (19) (258) 195
Total 435
 239
 $1,364
 $403
 $403
 $(451) $(1,107) $612

(a)Includes asset retirement disposal of $179 million related to divestitures.
(b)Includes capitalized internal costs of $148 million and related capitalized interest of $242 million.



Acreage
The following table sets forth our gross and net developed and undeveloped oil and natural gas leasehold and fee mineral acreage as of December 31, 2016. "Gross"2019. Gross acres are the total number of acres in which we own a working interest. "Net"Net acres refer to gross acres multiplied by our fractional working interest. Acreage numbers do not include our unexercised options to acquire additional acreage.
  Developed Leasehold Undeveloped Leasehold Fee Minerals Total
  
Gross
Acres
 
Net
Acres
 
Gross
Acres
 
Net
Acres
 
Gross
Acres
 
Net
Acres
 
Gross
Acres
 
Net
Acres
  (in thousands)
Southern 3,776
 1,871
 996
 427
 152
 35
 4,924
 2,333
Northern 1,848
 1,380
 3,482
 2,087
 708
 457
 6,038
 3,924
Total 5,624
 3,251
 4,478
 2,514
 860
 492
 10,962
 6,257
  Developed Leasehold Undeveloped Leasehold Fee Minerals Total
  
Gross
Acres
 
Net
Acres
 
Gross
Acres
 
Net
Acres
 
Gross
Acres
 
Net
Acres
 
Gross
Acres
 
Net
Acres
  (in thousands)
Marcellus 547
 350
 253
 172
 16
 16
 816
 538
Haynesville 293
 263
 36
 29
 1
 1
 330
 293
Eagle Ford 310
 186
 68
 46
 
 
 378
 232
Brazos Valley 411
 321
 302
 156
 
 
 713
 477
Powder River Basin 96
 77
 166
 128
 1
 1
 263
 206
Mid-Continent 900
 582
 211
 138
 17
 16
 1,128
 736
Other(a)
 167
 132
 967
 912
 431
 427
 1,565
 1,471
Total 2,724
 1,911
 2,003
 1,581
 466
 461
 5,193
 3,953

(a)Includes 1.3 million net acres retained in the 2016 divestiture of our Devonian Shale assets, in which we retained all rights below the base of the Kope formation.
Most of our leases have a three- to five-year primary term, and we manage lease expirations to ensure that we do not experience unintended material expirations. Our leasehold management efforts include scheduling our drilling to establish production in paying quantities in order to hold leases by production, timely exercising our contractual rights to pay delay rentals to extend the terms of leases we value, planning noncore divestitures to high-grade our lease inventory and letting some leases expire that are no longer part of our development plans. The following table sets forth the expiration periods of gross and net undeveloped leasehold acres as of December 31, 2016.2019:
  Acres Expiring
  
Gross
Acres
 
Net
Acres
  (in thousands)
Years Ending December 31:    
2017 1,126
 660
2018 462
 192
2019 243
 157
After 2019 2,647
 1,505
Total(a)
 4,478
 2,514
  Acres Expiring
  
Gross
Acres
 
Net
Acres
  (in thousands)
Years Ending December 31:    
2020 83
 79
2021 62
 54
2022 28
 28
After 2022 88
 86
Held-by-production(a)
 1,742
 1,334
Total 2,003
 1,581

(a)Includes 2.5 million gross (1.4 million net) held-by-productionHeld-by-production acres that will remain in force as production continues on the subject leases, and other leasehold acreage where management anticipates the lease to remain in effect past the primary term of the agreement due to our contractual option to extend the lease term.leases.

Marketing, Gathering and Compression
Our marketing activities, along with our midstream gathering and compression operations, constitute a reportable segment under accounting guidance for disclosure about segments of an enterprise and related information. See Note 21 of the notes to our consolidated financial statements included in Item 8 of Part II of this report.
Marketing
Chesapeake Energy Marketing, L.L.C., oneThe principal function of our wholly owned subsidiaries, providesmarketing operations is to provide oil, natural gas and NGL marketing services, including commodity price structuring, securing and negotiating of gathering, hauling, processing and transportation services, contract administration and nomination services for Chesapeakeus and other interest owners in Chesapeake-operated wells. WeThe marketing operations also perform marketingprovide other services for third-party producers in wells in which we do not have an interest. We attemptour exploration and production activities, including services to enhance the value of oil and natural gas production by aggregating volumes to be sold to various intermediary markets, end markets and pipelines. This aggregation allows us to attract larger, more creditworthy customers that in turn assist in maximizing the prices received. In addition, we periodically enter into a variety of oil, natural gas and NGL purchase and sale contracts with third parties for various commercial purposes, including credit risk mitigation and to help meet certainsatisfaction of our pipeline delivery commitments.
OilGenerally, our oil production is generally sold under market-sensitive short-term or spot price contracts. Natural gas and NGL production is sold to purchasers under percentage-of-proceeds contracts, percentage-of-index contracts or spot price contracts. ByUnder the terms of theour percentage-of-proceeds contracts, we receive a percentage of the resale price received from the ultimate purchaser. Under our percentage-of-index contracts, the price we receive is tied to published indices.
We have entered into long-term gathering, processing, and transportation contracts with various parties that require us to deliver fixed, determinable quantities of production over specified periods of time. Certain of our contracts require us to make payments for any shortfalls in delivering or transporting minimum volumes under these commitments. See Note 6 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of commitments.
Major Customers
Sales to BP PLCValero Energy Corporation constituted approximately 12% and 10% and 14% of our total revenues (before the effects of hedging) for the years ended December 31, 20162019 and 2015,2018, respectively. Sales to Exxon Mobil CorporationRoyal Dutch Shell PLC constituted approximately 12%10% of our total revenues (before the effects of hedging) for the year ended December 31, 2014.
Midstream Gathering Operations
Historically, we invested, directly and through affiliates, in gathering systems and processing facilities to complement our natural gas operations in regions where we had significant production and additional infrastructure was required. These systems were designed primarily to gather our production2017. No other purchasers accounted for delivery into major intrastate or interstate pipelines. In addition, our midstream business provided services to joint working interest owners and other third-party customers. We generated revenues from our gathering, treating and compression activities through various gathering rate structures. As of December 31, 2016, we sold substantially allmore than 10% of our remaining assets associated with our natural gas gathering business.
Compression Operations
Since 2003, we have operated our compression business through our wholly owned subsidiaries, Compass Manufacturing, L.L.C. (Compass) and MidCon Compression, L.L.C. (MidCon). Compass designs, engineers, fabricates, installs and sells natural gas compression units, accessories and equipment usedtotal revenues in the production, treatment and processing of oil and natural gas. A majority of the completed compressors are sold to MidCon. MidCon operates wellhead and system compressors, with approximately 150,000 horsepower of compression, to facilitate the transportation of natural gas primarily produced from Chesapeake-operated wells.

Spin-Off of Oilfield Services Business
On June 30, 2014, we completed the spin-off of our oilfield services business, which we previously conducted through our indirect, wholly owned subsidiary Chesapeake Oilfield Operating, L.L.C. (COO), into an independent, publicly traded company called Seventy Seven Energy Inc. (SSE). See Note 13 of the notes to our consolidated financial statements included in Item 8 of Part II of this report for additional information regarding the spin-off.
Following the spin-off, we have no ownership interest in SSE. Therefore, we ceased to consolidate SSE’s assets and liabilities as of the spin-off date. Because we expect to have significant continued involvement associated with SSE’s future operations through the various agreements we entered into in connection with the spin-off, our former oilfield services segment’s historical financial results for periods prior to the spin-off continue to be included in our historical financial results as a component of continuing operations.2019, 2018 or 2017.
Competition
We compete with both major integrated and other independent oil and natural gas companies in all aspects of our business to explore, develop and operate our properties and market our production. Some of our competitors may have larger financial and other resources than ours.us. Competitive conditions may be affected by future legislation and regulations as the United States develops new energy and climate-related policies. In addition, some of our competitors may have a competitive advantage when responding to factors that affect demand for oil and natural gas production, such as changing prices, domestic and foreign political conditions, weather conditions, the price and availability of alternative fuels, the proximity and capacity of natural gas pipelines and other transportation facilities and overall economic conditions. We also face indirect competition from alternative energy sources, including wind, solar and electric power. We believe that our technological expertise, combined with our exploration, land, drilling and production capabilities and the experience of our management generally enableteam, enables us to compete effectively.
Public Policy and Government Regulation – General
All of our operations are conducted onshore in the United States. The U.S. oil and natural gasOur industry is regulated at the federal, statesubject to a wide range of regulations, laws, rules, taxes, fees and local levels,other policy implementation actions that have been pervasive and are under constant review for amendment or expansion. Numerous government agencies have issued extensive regulations that are binding on our industry, some of thewhich carry substantial penalties for failure to comply. These laws and regulations that govern our operations carry substantial administrative, civil and criminal penalties for non-compliance. Although we believe we are in material compliance with all applicable laws and regulations, and thatincrease the cost of compliance with existing requirements will not have a material adverse effect on our financial position, cash flows or results of operations, such lawsdoing business and regulations could be, and frequently are, amended or reinterpreted.consequently affect profitability. Additionally, currently unforeseen environmental incidents may occur or past non-compliance with environmental laws or regulations may be discovered. Therefore, we are unable to predict the future costs or impact of compliance or non-compliance. Additional proposals and proceedings that affect the oil and natural gas industry are regularly considered by Congress, the states, local governments, the courts and federal agencies, such as the U.S. Environmental Protection Agency (EPA), the Federal Energy Regulatory Commission (FERC), the Department of Transportation (DOT), the Department of Interior (DOI) and the U.S. Army Corps of Engineers (USACE). We actively monitor regulatory developments applicable to our industry in order to anticipate, design and implement required compliance activities and systems. The following are significant areas of government control and regulation affecting our operations.

Exploration and Production, OperationsEnvironmental, Health and Safety and Occupational Laws and Regulations
TheOur operations are subject to federal, tribal, state, and local laws and regulations. These laws and regulations applicablerelate to our explorationmatters that include, but are not limited to, the following:
reporting of workplace injuries and production operations include requirements forillnesses;
industrial hygiene monitoring;
worker protection and workplace safety;
approval or permits or approvals to drill and to conduct other operations and for operations;
provision of financial assurances (such as bonds) covering drilling and well operations. Other activities subject to such lawsoperations;
calculation and regulations include, but are not limited to, the following:disbursement of royalty payments and production taxes;
seismic operations;operations/data;
the hydraulic fracturing;
location, drilling, cementing and casing of wells;
well design and construction of pad and equipment;
construction and operations activities including in sensitive areas, such as wetlands, coastal regions or areas that contain endangered or threatened species, their habitats, or their habitats;sites of cultural significance;
the method of drillingwell completion and completing wells;hydraulic fracturing;
water withdrawal;
well production and operations, including the installation of flowlinesprocessing and gathering systems;
air emergency response, contingency plans and spill prevention plans;
emissions and hydraulic fracturing;discharges permitting;
the climate change;
use, transportation, storage and disposal of fluids and materials incidental to oil and gas operations;
surface useusage, maintenance, monitoring and the restoration of properties upon which oil and natural gas facilities are located, including the construction ofassociated with well pads, pipelines, impoundments and associated access roads;

water withdrawal;
the plugging and abandoning of wells;
the generation, storage, transportation treatment, recycling or disposal of hazardous waste, fluids or other substances in connection with operations;
the construction and operation of underground injection wells to dispose of produced water and other liquid oilfield wastes;
the construction and operation of surface pits to contain drilling muds and other fluids associated with drilling operations;
the marketing, transportation and reporting of production; and
transportation of production.
Failure to comply with these laws and regulations can lead to the valuationimposition of remedial liabilities, administrative, civil or criminal fines or penalties or injunctions limiting our operations in affected areas. Moreover, multiple environmental laws provide for citizen suits which allow environmental organizations to act in the place of the government and sue operators for alleged violations of environmental law. We consider the costs of environmental protection and safety and health compliance necessary, manageable parts of our business. We have been able to plan for and comply with environmental, safety and health laws and regulations without materially altering our operating strategy or incurring significant unreimbursed expenditures. However, based on regulatory trends and increasingly stringent laws, our capital expenditures and operating expenses related to the protection of the environment and safety and health compliance have increased over the years and may continue to increase. We cannot predict with any reasonable degree of certainty our future exposure concerning such matters.
Our operations also are subject to conservation regulations, including the regulation of the size of drilling and spacing units or proration units, the number of wells that may be drilled in a unit, the rate of production allowable from oil and gas wells, and the unitization or pooling of oil and gas properties. In the United States, some states allow the forced pooling or integration of tracts to facilitate exploration, while other states rely on voluntary pooling of lands and leases, which may make it more difficult to develop oil and gas properties. In addition, federal and state conservation laws generally limit the venting or flaring of natural gas, and state conservation laws impose certain requirements regarding the ratable purchase of production. These regulations limit the amounts of oil and gas we can produce from our wells and the number of wells or the locations at which we can drill. For further discussion, see Item 1A. Risk Factors - We are subject to extensive governmental regulation, which can change and could adversely impact our business.

Regulatory proposals in some states and local communities have been initiated to require or make more stringent the permitting and compliance requirements for hydraulic fracturing operations. Federal and state agencies have continued to assess the potential impacts of hydraulic fracturing, which could spur further action toward federal, state and/or local legislation and regulation. Further restrictions of hydraulic fracturing could make it difficult or impossible to conduct our operations, and thereby reduce the amount of oil, natural gas and NGL that we are ultimately able to produce from our properties.
Certain of our U.S. natural gas and oil leases are granted or approved by the federal government and administered by the Bureau of Land Management (BLM) or Bureau of Indian Affairs (BIA) of the Department of the Interior. Such leases require compliance with detailed federal regulations and orders that regulate, among other matters, drilling and operations on lands covered by these leases and calculation and disbursement of royalty payments to the federal government, tribes or tribal members. The federal government has been particularly active in recent years in evaluating and, in some cases, promulgating new rules and regulations regarding competitive lease bidding, venting and flaring, oil and gas measurement and royalty payment of royalties.obligations for production from federal lands. In addition, permitting activities on federal lands are subject to frequent delays.
Delays in obtaining permits or an inability to obtain new permits or permit renewalscould inhibit our ability to execute our drilling and production plans. Failure to comply with applicable regulations or permit requirements could result in revocation of our permits, inability to obtain new permits and the imposition of fines and penalties.
Our exploration and production activities are also subject to various conservation regulations. These include the regulation of the size of drilling and spacing units (regarding the density of wells that may be drilled in a particular area) and the unitization or pooling of oil and natural gas properties. In this regard, some states, such as Oklahoma, allow the forced pooling or integration of tracts to facilitate exploration, while other states, such as Texas, West Virginia and Pennsylvania, rely on voluntary pooling of lands and leases. In areas where pooling is voluntary, it may be more difficult to form units and, therefore, more difficult to fully develop a project if the operator owns or controls less than 100% of the leasehold. In addition, some states’ conservation laws establish maximum rates of production from oil and natural gas wells, generally limit the venting or flaring of natural gas and impose certain requirements regarding the ratability of production. The effect of these regulations is to limit the amount of oil and natural gas we can produce and to limit the number of wells and the locations at which we can drill.
Hydraulic Fracturing
Hydraulic fracturing is typically regulated by state oil and gas regulatory authorities, including specifically the requirement to disclose certain information related to hydraulic fracturing operations. We follow applicable legal requirements for groundwater protection in our operations that are subject to supervision by state and federal regulators (including the BLM on federal acreage). Furthermore, our well construction practices require the installation of multiple layers of protective steel casing surrounded by cement that are specifically designed and installed to protect freshwater aquifers by preventing the migration of fracturing fluids into aquifers. Regulatory proposals in some states and local communities have been initiated to require or make more stringent the permitting and compliance requirements for hydraulic fracturing operations. Federal and state agencies continue to assess the impacts of hydraulic fracturing that could spur further action toward federal and/or state legislation and regulation of hydraulic fracturing activities. In addition, in light of concerns about seismic activity being triggered by the injection of produced waters into underground wells and hydraulic fracturing, certain regulators are also considering additional requirements related to seismic safety for hydraulic fracturing activities. Further restrictions on hydraulic fracturing could make it prohibitive to conduct our operations, and also reduce the amount of oil, natural gas and NGL that we are ultimately able to produce in commercial quantities from our properties. For further discussion, see Item 1A. Risk Factors – Federal and state legislative and regulatory initiatives relating to hydraulic fracturing could result in increased costs and additional operating restrictions or delays.
Midstream Operations
Historically, Chesapeake invested, directly and through an affiliate, in gathering systems and processing facilities to complement our natural gas operations in regions where we had significant production and additional infrastructure was required. In 2012 and 2013, we sold a significant portion of our midstream business, including most of our gathering assets. As of December 31, 2016, we sold substantially all of our remaining assets associated with our natural gas gathering business. As a result, the impact on our business of compliance with the laws and regulations described below has decreased significantly since the fourth quarter of 2012.

In addition to the environmental, health and safety laws and regulations discussed below under Regulation –Environment, Health and Safety Matters, a small number of our midstream facilities are subject to federal regulation by the Pipeline and Hazardous Materials Safety Administration of the DOT pursuant to the Natural Gas Pipeline Safety Act of 1968 (NGPSA) and the Pipeline Safety Improvement Act of 2002, which was reauthorized and amended by the Pipeline Inspection, Protection, Enforcement and Safety Act of 2006 and reauthorized and amended again by the Protecting our Infrastructure of Pipelines and Enhancing Safety Act of 2016. The NGPSA regulates safety requirements in the design, construction, operation and maintenance of gas pipeline facilities.
States are largely preempted by federal law from regulating pipeline safety for interstate lines but most are certified by the DOT to assume responsibility for enforcing federal intrastate pipeline regulations and inspection of intrastate pipelines. In practice, because states can adopt stricter standards for intrastate pipelines than those imposed by the federal government for interstate lines, states vary considerably in their assertion of authority and capacity to address pipeline safety. We have inspection and compliance programs designed to keep our natural gas pipeline facilities in compliance with current pipeline safety and pollution control laws and regulations. However, future PHMSA rulemakings could have a material impact on our operations.
Natural gas gathering and intrastate transportation facilities are exempt from the jurisdiction of the FERC under the Natural Gas Act. Although the FERC has made no formal determinations with regard to any of our facilities, we believe that our natural gas pipelines and related facilities are engaged in exempt gathering and intrastate transportation and, therefore, are not subject to the FERC's jurisdiction. Nevertheless, FERC regulation affects our gathering and compression business, generally, in that some of our assets feed into FERC-regulated systems. FERC provides policies and practices across a range of natural gas regulatory activities, including, for example, its policies on open access transportation, market manipulation, ratemaking, capacity release and market transparency, and market center promotion, which indirectly affect our gathering and compression business. In addition, the distinction between FERC-regulated transmission facilities and federally unregulated gathering and intrastate transportation facilities is a fact-based determination made by the FERC on a case-by-case basis; this distinction has also been the subject of regular litigation and change. The classification and regulation of our gathering and intrastate transportation facilities are subject to change based on future determinations by the FERC, the courts and Congress.
Our natural gas gathering operations are subject to ratable-take and common-purchaser statutes in most of the states in which we operate. These statutes generally require our gathering pipelines to take natural gas without undue discrimination as to source of supply or producer. These statutes are designed to prohibit discrimination in favor of one producer over another producer or one source of supply over another source of supply. The regulations under these statutes can have the effect of imposing restrictions on our ability as an owner of gathering facilities to decide with whom we contract to gather natural gas. The states in which we operate typically have adopted a complaint-based regulation of natural gas gathering activities, which allows natural gas producers and shippers to file complaints with state regulators in an effort to resolve grievances relating to gathering access and rate discrimination.
Regulation – Environment, Health and Safety
Our operations are subject to stringent and complex federal, state and local laws and regulations relating to the protection of human health and safety, the environment and natural resources. These laws and regulations can restrict or impact our business activities in many ways, such as:
requiring the installation of pollution-control equipment or otherwise restricting the way we can handle or dispose of wastes and other substances associated with operations;
limiting or prohibiting construction activities in sensitive areas, such as wetlands, coastal regions or areas that contain endangered or threatened species and/or species of special statewide concern or their habitats;
requiring investigatory and remedial actions to address pollution caused by our operations or attributable to former operations;
requiring noise, lighting, visual impact, odor and/or dust mitigation, setbacks, landscaping, fencing, and other measures;
restricting access to certain equipment or areas to a limited set of employees or contractors who have proper certification or permits to conduct work (e.g., confined space entry and process safety maintenance requirements); and
restricting or even prohibiting water use based upon availability, impacts or other factors.

Failure to comply with these laws and regulations may trigger a variety of administrative, civil and criminal enforcement measures, including the assessment of monetary penalties, the imposition of remedial or restoration obligations, and the issuance of orders enjoining future operations or imposing additional compliance requirements. Certain environmental statutes impose strict, joint and several liability for costs required to clean up and restore sites where hazardous substances, hydrocarbons or wastes have been disposed or otherwise released. Moreover, local restrictions, such as state or local moratoria, city ordinances, zoning laws and traffic regulations, may restrict or prohibit the execution of our drilling and production plans. In addition, third parties, such as neighboring landowners, may file claims alleging property damage, nuisance or personal injury arising from our operations or from the release of hazardous substances, hydrocarbons or other waste products into the environment.
The trend in environmental regulation is to place more restrictions and limitations on activities that may affect the environment. We monitor developments at the federal, state and local levels to inform our actions pertaining to future regulatory requirements that might be imposed to mitigate the costs of compliance with any such requirements. We also participate in industry groups that help formulate recommendations for addressing existing or future regulations and that share best practices and lessons learned in relation to pollution prevention and incident investigations.
Below is a discussion of the major environmental, health and safety laws and regulations that relate to our business. We believe that we are in material compliance with these laws and regulations. We do not believe that compliance with existing environmental, health and safety laws or regulations will have a material adverse effect on our financial condition, results of operations or cash flow. At this point, however, we cannot reasonably predict what applicable laws, regulations or guidance may eventually be adopted with respect to our operations or the ultimate cost to comply with such requirements.
Hazardous Substances and Waste
Federal and state laws, in particular the federal Resource Conservation and Recovery Act (RCRA) regulate hazardous and non-hazardous wastes. In the course of our operations, we generate petroleum hydrocarbon wastes, such as drill cuttings, produced water and ordinary industrial wastes. Under a longstanding legal framework, certain of these wastes are not subject to federal regulations governing hazardous wastes, although they are regulated under other federal and state waste laws. At various times in the past, most recently in December 2016, proposals have been made to amend RCRA or otherwise eliminate the exemption applicable to crude oil and natural gas exploration and production wastes. Repeal or modifications of this exemption by administrative, legislative or judicial process, or through changes in applicable state statutes, would increase the volume of hazardous waste we are required to manage and dispose and would cause us, as well as our competitors, to incur significantly increased operating expenses.
Federal, state and local laws may also require us to remove or remediate wastes or hazardous substances that have been previously disposed or released into the environment. This can include removing or remediating wastes or hazardous substances disposed or released by us (or prior owners or operators) in accordance with then current laws, suspending or ceasing operations at contaminated areas, or performing remedial well plugging operations or response actions to reduce the risk of future contamination. Federal laws, including the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and analogous state laws impose joint and several liability, without regard to fault or legality of the original conduct, on classes of persons who are considered legally responsible for releases of a hazardous substance into the environment. These persons include the owner or operator of the site where the release occurred, persons who disposed or arranged for the disposal of hazardous substances at the site, and any person who accepted hazardous substances for transportation to the site. CERCLA and analogous state laws also authorize the EPA, state environmental agencies and, in some cases, third parties to take action to prevent or respond to threats to human health or the environment and/or seek recovery of the costs of such actions from responsible classes of persons.
The Underground Injection Control (UIC) Program authorized by the Safe Drinking Water Act prohibits any underground injection unless authorized by a permit. Chesapeake recycles and reuses some produced water and we also dispose of produced water in Class II UIC wells, which are designed and permitted to place the water into deep geologic formations, isolated from fresh water sources. Permits for Class II UIC wells may be issued by the EPA or by a state regulatory agency if EPA has delegated its UIC Program authority. Because some states have become concerned that the disposal of produced water could under certain circumstances contribute to seismicity, they have adopted or are considering adopting additional regulations governing such disposal.

Air Emissions
Our operations are subject to the federal Clean Air Act (CAA) and comparable state laws and regulations. Among other things, these laws and regulations regulate emissions of air pollutants from various industrial sources, including compressor stations and production equipment, and impose various control, monitoring and reporting requirements. Permits and related compliance obligations under the CAA, each state's development and promulgation of regulatory programs to comport with federal requirements, as well as changes to state implementation plans for controlling air emissions in regional non-attainment or near-non-attainment areas, may require oil and gas exploration and production operators to incur future capital expenditures in connection with the addition or modification of existing air emission control equipment and strategies.
Discharges into Waters
The federal Water Pollution Control Act, or the Clean Water Act (CWA), and analogous state laws impose restrictions and strict controls regarding the discharge of pollutants into state waters as well as waters of the U.S. Spill prevention, control and countermeasure regulations require appropriate containment berms and similar structures to help prevent the contamination of regulated waters in the event of a hydrocarbon tank spill, rupture or leak. In addition, the CWA and analogous state laws require individual permits or coverage under general permits for discharges of storm water runoff from certain types of facilities and construction activities.
The Oil Pollution Act of 1990 (OPA) establishes strict liability for owners and operators of facilities that release oil into waters of the United States. The OPA and its associated regulations impose a variety of requirements on responsible parties related to the prevention of oil spills and liability for damages resulting from such spills. A ''responsible party'' under the OPA includes owners and operators of certain onshore facilities from which a release may affect waters of the United States.
Health and Safety
The Occupational Safety and Health Act (OSHA) and comparable state laws regulate the protection of the health and safety of our employees. The federal Occupational Safety and Health Administration has established workplace safety standards that provide guidelines for maintaining a safe workplace in light of potential hazards, such as employee exposure to hazardous substances. OSHA also requires employee training and maintenance of records, and the OSHA hazard communication standard and EPA community right-to-know regulations under the Emergency Planning and Community Right-to-Know Act of 1986 require that we organize and/or disclose information about hazardous materials used or produced in our operations.
Endangered Species
The Endangered Species Act (ESA) prohibits the taking of endangered or threatened species or their habitats. While some of our assets and lease acreage may be located in areas that are designated as habitats for endangered or threatened species, we believe that we are in material compliance with the ESA. However, the designation of previously unidentified endangered or threatened species in areas where we intend to conduct construction activity or the imposition of seasonal restrictions on our construction or operational activities could materially limit or delay our plans.
Global Warming and Climate Change
At the federal level, EPA regulations require us to establish and report an inventory of greenhouse gas emissions. Legislative and regulatory proposals for restricting greenhouse gas emissions or otherwise addressing climate change could require us to incur additional operating costs and could adversely affect demand for the oil and natural gas that we sell. The EPA recently finalized new standards of performance limiting methane emissions from oil and gas sources. The potential increase in our operating costs could include new or increased costs to (i) obtain permits, (ii) operate and maintain our equipment and facilities (through the reduction or elimination of venting and flaring of methane), (iii) install new emission controls on our equipment and facilities, (iv) acquire allowances authorizing our greenhouse gas emissions, (v) pay taxes related to our greenhouse gas emissions and (vi) administer and manage a greenhouse gas emissions program. In addition to these federal actions, various state governments and/or regional agencies may consider enacting new legislation and/or promulgating new regulations governing or restricting the emission of greenhouse gases from stationary sources such as our equipment and operations.


In addition, the United States was actively involved in the United Nations Conference on Climate Change in Paris, which led to the creation of the Paris Agreement. The Paris Agreement requires countries to review and “represent a progression” in their nationally determined contributions, which set emissions reduction goals, every five years. For further discussion, see Item 1A. Risk Factors - Potential legislative and regulatory actions addressing climate change could significantly impact our industry and the Company, causing increased costs and reduced demand for oilOil and natural gas.gas drilling and producing operations can be hazardous and may expose us to liabilities.
Title to Properties
Our title to properties is subject to royalty, overriding royalty, carried, net profits, working and other similar interests and contractual arrangements customary in the oil and natural gas industry, to liens for current taxes not yet due and to other encumbrances. As is customary in the industry in the case of undeveloped properties, only cursory investigation of record title is made at the time of acquisition. Drilling title opinions are usually prepared before commencement of drilling operations. We believe we have satisfactory title to substantially all of our active properties in accordance with standards generally accepted in the oil and natural gas industry. Nevertheless, we are involved in title disputes from time to time whichthat may result in litigation.
Operating Hazards and Insurance
The oil and natural gas business involves a variety of operating risks, including the risk of fire, explosions, blow-outs, pipe failure, abnormally pressured formations and environmental hazards such as oil spills, natural gas leaks, ruptures or discharges of toxic gases. If any of these should occur, Chesapeakewe could incur legal defense costs and could suffer substantial losses due to injury or loss of life, severe damage to or destruction of property, natural resources and equipment, pollution or other environmental damage, clean-up responsibilities, regulatory investigation and penalties, and suspension of operations. Our horizontal and deep drilling activities involve greater risk of mechanical problems than vertical and shallow drilling operations.
Chesapeake maintainsWe maintain a control of well insurance policy with a $50 million single well limit and a $100 million multiple wells limit that insures against certain sudden and accidental risks associated with drilling, completing and operating our wells. This insurance may not be adequate to cover all losses or exposure to liability. ChesapeakeWe also carriescarry a $250 million comprehensive general liability umbrella insurance policy. In addition, Chesapeake maintainswe maintain a $150$50 million pollution liability insurance policy providing coverage for gradual pollution related risks and in excess of the general liability policy for sudden and accidental pollution risks. We provide workers' compensation insurance coverage to employees in all states in which we operate. While we believe these policies are customary in the industry, they do not provide complete coverage against all operating risks, and policy limits scale to Chesapeake’sour working interest percentage in certain situations. In addition, our insurance does not cover penalties or fines that may be assessed by a governmental authority. A loss not fully covered by insurance could have a material adverse effect on our financial position, results of operations and cash flows. Our insurance coverage may not be sufficient to cover every claim made against us or may not be commercially available for purchase in the future.
Facilities
Chesapeake ownsWe own an office complex in Oklahoma City and ownswe own or leaseslease various field offices in cities or towns in the areas where we conduct our operations.


Executive Officers
Robert D. Lawler, President, Chief Executive Officer and Director
Robert D. (“Doug”) Lawler, 50,53, has served as President and Chief Executive Officer since June 2013. Prior to joining Chesapeake, Mr. Lawler served in multiple engineering and leadership positions at Anadarko Petroleum Corporation. His positions at Anadarko included Senior Vice President, International and Deepwater Operations and member of Anadarko’s Executive Committee from July 2012 to May 2013; Vice President, International Operations from December 2011 to July 2012; Vice President, Operations for the Southern and Appalachia Region from March 2009 to July 2012; and Vice President, Corporate Planning from August 2008 to March 2009. Mr. Lawler began his career with Kerr-McGee Corporation in 1988 and joined Anadarko following its acquisition of Kerr-McGee in 2006.
Domenic J. Dell'Osso, Jr., Executive Vice President and Chief Financial Officer
Domenic J. (“Nick”) Dell'Osso, Jr., 40,43, has served as Executive Vice President and Chief Financial Officer since November 2010. Mr. Dell'Osso served as our Vice President – Finance of the Company and Chief Financial Officer of Chesapeake'sour wholly owned midstream subsidiary, Chesapeake Midstream Development, L.P., from August 2008 to November 2010.
Frank J. Patterson, ExecutiveVice President – Exploration and Production
Frank J. Patterson 58, 61, has served as Executive Vice President - Exploration and Production since August 2016. Previously, he served as Executive Vice President – Exploration and Northern Division since April 2016 and as Executive Vice President – Exploration, Technology & Land since May 2015. Before joining Chesapeake, Mr. Patterson served in various roles at Anadarko from 2006 to 2015, most recently as Senior Vice President – International Exploration. Prior to that he was Vice President – Deepwater Exploration at Kerr-McGee and Manager – Geology at Sun E&P/Oryx Energy.
Mikell J. Pigott, Executive Vice President – Operations and Technical Services
Mikell J. (“Jason”) Pigott, 43,has served as Executive Vice President – Operations and Technical Services since August 2016. Previously, he served as Executive Vice President – Operations, Southern Division since January 2015 and Senior Vice President – Operations, Southern Division since August 2013. Before joining Chesapeake, Mr. Pigott served in various positions at Anadarko and focused on all aspects of developing unconventional resources. His positions at Anadarko included General Manager Eagle Ford from June to August 2013; General Manager East Texas and North Louisiana from October 2010 to June 2013; Southern & Appalachia Planning Manager from October 2009 to October 2010; Reservoir Engineering Manager East Texas and North Louisiana from July to October 2009; and Reservoir Engineering Manager Bossier from 2007 to July 2009.
James R. Webb, Executive Vice President – General Counsel and Corporate Secretary
James R. Webb, 49,52, has served as Executive Vice President – General Counsel and Corporate Secretary since January 2014. Previously, he served as Senior Vice President – Legal and General Counsel since October 2012 and as Corporate Secretary since August 2013. Mr. Webb first joined Chesapeake in May 2012 on a contract basis as Chief Legal Counsel. Prior to joining Chesapeake, Mr. Webb was an attorney with the law firm of McAfee & Taft from 1995 to October 2012.
Michael A. Johnson, William M. Buergler – Senior Vice President – Accounting, Controller and Chief Accounting Officer
Michael A. Johnson, 51,William Buergler, 47, has served as Senior Vice President – Accounting, Controller and Chief Accounting Officer since 2000. HeAugust 2017. Previously, he served as Vice President of Accounting and Financial Reporting from 1998 to 2000 and as Assistant Controller from 1993 to 1998.
Other Senior Officer
Cathlyn L. Tompkins, Senior Vice President – Information Technology and Chief Information Officer
Cathlyn L. Tompkins, 56, has- Tax since July 2014. Before joining Chesapeake, he worked for Ernst & Young LLP, where he served as Senior Vice President – Information Technology and Chief Information Officera Partner since 2006. Ms. Tompkins served as Vice President – Information Technology from 2005 to 2006.2009.
Employees
ChesapeakeWe had approximately 3,3002,300 employees as of December 31, 2016.2019.

Glossary of Oil and Gas Terms
The terms defined in this section are used throughout this report.
Bbl. One stock tank barrel, or 42 U.S. gallons liquid volume, used herein in reference to crude oil or other liquid hydrocarbons.
Bboe. One billion barrels of oil equivalent.
Bcf. Billion cubic feet.
Bcfe. Billion cubic feet of natural gas equivalent.
Bbtu. One billion British thermal units.
Btu. British thermal unit, which is the heat required to raise the temperature of a one-pound mass of water from 58.5 to 59.5 degrees Fahrenheit.
Boe. Barrel of oil equivalent.
Commercial Well; Commercially Productive Well. A well which produces oil, natural gas and/or NGL in sufficient quantities such that proceeds from the sale of this production exceeds production expenses and taxes.
Completion. The process of treating a drilled well followed by the installation of permanent equipment for the production of oil, natural gas or NGL, or in the case of a dry well, the reporting to the appropriate authority that the well has been abandoned.
Developed Acreage. The number of acres which are allocated or assignable to producing wells or wells capable of production.
Development Well. A well drilled within the proved area of an oil or natural gas reservoir to the depth of a stratigraphic horizon known to be productive.
Drilling Carry Obligation. An obligation of one party to pay certain well costs attributable to another party.
Dry Well. A well found to be incapable of producing either oil or natural gas in sufficient quantities to justify completion as an oil or natural gas well.
Exploratory Well. A well drilled to find a new field or to find a new reservoir in a field previously found to be productive of oil or natural gas in another reservoir.
Formation. A succession of sedimentary beds that were deposited under the same general geologic conditions.
Full Cost Pool. The full cost pool consists of all costs associated with property acquisition, exploration and development activities for a company using the full cost method of accounting. Additionally, any internal costs that can be directly identified with acquisition, exploration and development activities are included. Any costs related to production, general corporate overhead or similar activities are not included.
Gross Acres or Gross Wells. The total acres or wells, as the case may be, in which a working interest is owned.
Mboe. One thousand barrels of oil equivalent.
Mcf. One thousand cubic feet.
Mmbbl. One million barrels of crude oil or other liquid hydrocarbons.
Mmboe. One million barrels of oil equivalent.
Mmbtu. One million btus.
Mmcf. One million cubic feet.

Natural Gas Liquids (NGL). Those hydrocarbons in natural gas that are separated from the gas as liquids through the process of absorption, condensation, adsorption or other methods in gas processing or cycling plants. Natural gas liquids primarily include ethane, propane, butane, isobutene, pentane, hexane and natural gasoline.
Net Acres or Net Wells. The sum of the fractional working interests owned in gross acres or gross wells.
NYMEX. New York Mercantile Exchange.
Play. A term applied to a portion of the exploration and production cycle following the identification by geologists and geophysicists of areas with potential oil, natural gas and NGL reserves.
Present Value or PV-10. When used with respect to oil, natural gas and NGL reserves, present value, or PV-10, means the estimated future gross revenue to be generated from the production of proved reserves, net of estimated production and future development costs, using prices calculated as the average oil and natural gas price during the preceding 12-month period prior to the end of the current reporting period, (determined as the unweighted arithmetic average of prices on the first day of each month within the 12-month period) and costs in effect at the determination date, without giving effect to non-property related expenses such as general and administrative expenses, debt service and future income tax expense or to depreciation, depletion and amortization, discounted using an annual discount rate of 10%.
Price Differential. The difference in the price of oil, natural gas or NGL received at the sales point and the NYMEX price.
Productive Well. A well that is not a dry well. Productive wells include producing wells and wells that are mechanically capable of production.
Proved Developed Reserves. Proved reserves that can be expected to be recovered through existing wells with existing equipment and operating methods or in which the cost of the required equipment is relatively minor compared to the cost of a new well.
Proved Properties. Properties with proved reserves.
Proved Reserves. Proved oil and natural gas reserves are those quantities of oil and natural 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. The area of a reservoir considered as proved includes (i) the area identified by drilling and limited by fluid contacts, if any, and (ii) 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 natural gas on the basis of available geoscience and engineering data. In the absence of data on fluid contacts, proved quantities in a reservoir are limited by the lowest known hydrocarbons (LKH) as seen in a well penetration unless geoscience, engineering, or performance data and reliable technology establishes a lower contact with reasonable certainty. Where direct observation from well penetrations has defined a highest known oil (HKO) 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. Reserves that can be produced economically through application of improved recovery techniques (including, but not limited to, fluid injection) are included in the proved classification when (i) 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 (ii) the project has been approved for development by all necessary parties and entities, including governmental entities. Existing economic conditions include prices and costs at which economic producibility from a reservoir is to be determined. The price is the average price 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 the period, unless prices are defined by contractual arrangements, excluding escalations based upon future conditions.

Proved Undeveloped Reserves (PUDs). Proved reserves that are expected to be recovered from new wells on undrilled acreage, or from existing wells where a relatively high expenditure compared to the cost of drilling a new well is required for recompletion. Reserves on undrilled acreage are limited to those directly offsetting development spacing areas that are reasonably certain of production when drilled, unless evidence using reliable technology exists that establishes reasonable certainty of economic producibility at greater distances. Undrilled locations can be classified as having proved undeveloped reserves only if a development plan has been adopted indicating that they are scheduled to be drilled within five years, unless specific circumstances justify a longer time. Estimates for proved undeveloped reserves are not attributed to any acreage for which an application of fluid injection or other improved recovery technique is contemplated, unless these techniques have been proved effective by actual projects in the same reservoir or an analogous reservoir, or by other evidence using reliable technology establishing reasonable certainty.
Realized and Unrealized Gains and Losses on Oil, Natural Gas and NGL Derivatives. Realized gains and losses includes the following items:(i) settlements and accruals for settlements of non-designated derivatives related to current period production revenues, (ii) prior period settlements for option premiums and for early-terminated derivatives originally scheduled to settle against current period production revenues, and (iii) gains and losses related to de-designated cash flow hedges originally designated to settle against current period production revenues. Unrealized gains and losses include the change in fair value of open derivatives scheduled to settle against future period production revenues (including current period settlements for option premiums and early-terminated derivatives) offset by amounts reclassified as realized gains and losses during the period. Although we no longer designate our derivatives as cash flow hedges for accounting purposes, we believe these definitions are useful to management and investors in determining the effectiveness of our price risk management program.
Reservoir. A porous and permeable underground formation containing a natural accumulation of producible oil and/or natural gas that is confined by impermeable rock or water barriers and is individual and separate from other reservoirs.
Royalty Interest. An interest in an oil and natural gas property entitling the owner to a share of oil, natural gas or NGL production free of costs of production.
Seismic. An exploration method of sending energy waves or sound waves into the earth and recording the wave reflections to indicate the type, size, shape and depth of subsurface rock formation (3-D seismic provides three-dimensional pictures).
Shale. Fine-grained sedimentary rock composed mostly of consolidated clay or mud. Shale is the most frequently occurring sedimentary rock.
Standardized Measure of Discounted Future Net Cash Flows. The discounted future net cash flows relating to proved reserves based on the prices used in estimating the proved reserves, year-end costs and statutory tax rates (adjusted for permanent differences) and a 10% annual discount rate.
Tbtu. One trillion British thermal units.
Undeveloped Acreage. Acreage on which wells have not been drilled or completed to a point that would permit the production of economic quantities of oil and natural gas regardless of whether the acreage contains proved reserves.
Unproved Properties. Properties with no proved reserves.
Volumetric Production Payment (VPP). As we use the term, a volumetric production payment represents a limited-term overriding royalty interest in oil and natural gas reserves that: (i) entitles the purchaser to receive scheduled production volumes over a period of time from specific lease interests; (ii) is free and clear of all associated future production costs and capital expenditures; (iii) is nonrecourse to the seller (i.e., the purchaser's only recourse is to the reserves acquired); (iv) transfers title of the reserves to the purchaser; and (v) allows the seller to retain the remaining reserves, if any, after the scheduled production volumes have been delivered.
Working Interest. The operating interest which gives the owner the right to drill, produce and conduct operating activities on the property and a share of production.


ITEM 1A.Risk Factors
There are numerous factors that affect our business and operating results, many of which are beyond our control. The following is a description of significant factors that might cause our future results to differ materially from those currently expected. The risks described below are not the only risks facing our company. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our business operations. If any of these risks actually occur, our business, financial position, operating results, cash flows, reserves and/or our ability to pay our debts and other liabilities could suffer, the trading price and liquidity of our securities could decline and you may lose all or part of your investment in our securities.
Oil, natural gas and NGL prices fluctuate widely, and lower prices for an extended period of time are likely to have a material adverse effect on our business.
Our revenues, operating results, profitability, liquidity and ability to grow depend primarily upon the prices we receive for the oil, natural gas and NGL we sell. We requireincur substantial expenditures to replace reserves, sustain production and fund our business plans. Low oil, natural gas and NGL prices can negatively affect the amount of cash available for capital expenditures, debt service and debt repayment and our ability to borrow money or raise additional capital and, as a result, could have a material adverse effect on our financial condition, results of operations, cash flows and reserves. In addition, periods of low oil and natural gas prices may result in ceiling test write-downsa reduction of the carrying value of our oil and natural gas properties. We urge youproperties due to read the risk factors below for a more detailed description of each of these risks.recognizing impairments in proved and unproved properties.
Historically, the markets for oil, natural gas and NGL have been volatile, and they are likely to continue to be volatile. For example, during the period from January 1, 2014 to December 31, 2019, NYMEX WTI oil prices ranged from a high of $107.26 per bbl to a low of $26.21 per bbl and NYMEX Henry Hub natural gas prices ranged from a high of $6.15 per mmbtu to a low of $1.64 per mmbtu. As of February 19, 2020, the NYMEX WTI oil price was $53.29 per bbl and the NYMEX Henry Hub natural gas price was $1.99 per mmbtu.
Wide fluctuations in oil, natural gas and NGL prices may result from relatively minor changes in the supply of or demand for oil, natural gas and NGL, market uncertainty and other factors that are beyond our control, including:
domestic and worldwide supplies of oil, natural gas and NGL, including U.S. inventories of oil and natural gas reserves;
weather conditions;
changes in the level of consumer and industrial demand;demand, including impacts from global or national health epidemics and concerns, such as the recent coronavirus;
the price and availability of alternative fuels;
technological advances affecting energy consumption;
the effectiveness of worldwide conservation measures;
the availability, proximity and capacity of pipelines, other transportation facilities and processing facilities;
the level and effect of trading in commodity futures markets, including by commodity price speculators and others;
U.S. exports of oil, and/ornatural gas, liquefied natural gas;gas and NGL;
the price and level of foreign imports;
the nature and extent of domestic and foreign governmental regulations and taxes;
the ability of the members of the Organization of Petroleum Exporting Countries and others to agree to and maintain oil price and production controls;
increased use of competing energy products, including alternative energy sources;
political instability or armed conflict in oil and natural gas producing regions;
acts of terrorism; and
domestic and global economic conditions.
These factors and the volatility of the energy markets make it extremely difficult to predict future oil, natural gas and NGL price movements with any certainty. Oil and natural gas prices remained low throughout 2016 and into the first quarter of 2017.movements. As of February 24, 2017, 68%19, 2020, including January and 71%February derivative contracts that have settled, approximately 70% of our 2020 forecasted 2017 oil, production and natural gas and NGL production respectively,revenue was hedged underhedged. We had approximately 76% downside oil price protection through swaps and collars.collars at an average price of $59.90 per bbl. We

had 39% downside gas price protection through swaps at $2.76 per mcf and 14% under put spread arrangements based on an average bought put NYMEX price of $2.05 per mcf and exposure below an average sold put NYMEX price of $1.80 per mcf. Even with oil, and natural gas and NGL derivatives currently in place to mitigate price risks associated with a portion of our 2017 production,2020 cash flows, we have substantial exposure to oil, natural gas and NGL prices in 20182020 and 2021 and beyond. In addition, a prolonged extension of lower prices could reduce the quantities of reserves that we may be economically produced.

produce.
We have a significant amount of indebtedness. Our leverage and debt service obligations may adversely affect our financial condition, results of operations and business prospects, and we may have difficulty paying our debts as they become due.
As of December 31, 2016,2019, we had approximately $10.0$8.916 billion in principal amount of debt outstanding (including $301 million of current maturities),maturities and $1.590 billion drawn under our senior secured revolving credit facility). As of December 31, 2019, we had approximately $59 million of letters of credit issued and borrowing capacity of approximately $2.8$1.351 billion under our $4.0$3.0 billion senior secured revolving credit facility, which was undrawn (other than lettersfacility. See Note 5 of credit issued thereunderthe notes to our consolidated financial statements included in Item 8 of this report for further discussion of our debt obligations, including debt maturities for the aggregate amount of $1.0 billion). We also had a net working capital deficit of approximately $1.506 billion as of December 31, 2016. During January 2017, we repurchased or retired approximately $900 million principal amount of debt, resulting in a debt balance of $9.1 billion principal amount as of February 24, 2017.next five years and thereafter.
The level of and terms and conditions governing our debt:
require us to dedicate a substantial portion of our cash flow from operations to service our existing debt obligations and could limit our flexibility in planning for or reacting to changes in our business and the industry in which we operate;
increase our vulnerability to the cyclical nature of our business, economic downturns or other adverse developments in our business;
could limit our ability to access the capital markets, to refinance our existing indebtedness, to raise capital on favorable terms, or to obtain additional financing for working capital, capital expenditures, acquisitions, debt service requirements, or execution of our business strategy, or for other purposes;
expose us to the risk of increased interest rates as certain of our borrowings, including borrowings under ourthe Chesapeake revolving credit facility, bear interest at floating rates;
place restrictions on our ability to obtain additional financing, make investments, lease equipment, sell assets and engage in business combinations;
place us at a competitive disadvantage relative to competitors with lower levels of indebtedness in relation to their overall size, or those that have less restrictive terms governing their indebtedness, and, therefore, that may be ablethereby enabling competitors to take advantage of opportunities that our indebtedness preventsmay prevent us from pursuing;
limit management’s discretion in operating our business; and
increase our cost of borrowing.
Any of the above listed factors could have a material adverse effect on our business, financial condition, cash flows and results of operations.
Our ability to pay our expenses and fund our working capital needs and debt obligations will depend on our future performance, which will be affected by financial, business, economic, regulatory and other factors. We will not be able to control many of these factors, such as commodity prices, other economic conditions and governmental regulation. We have previously drawn on our $3.0 billion credit facility for liquidity, and the borrowing base under our credit facility is subject to a redetermination on June 15, 2017.in the second quarter of 2020. If our borrowing base under our revolving credit facility decreases as a result of lower prices of oil, natural gas or NGL, operating difficulties, declines in reserves or for any other reason, we may have limited ability to obtain the capital necessary to sustain our operations and growth at current levels. To the extent that the value of the collateral pledged under theour credit facility declines as a result of lower oil and natural gas prices, asset dispositions or otherwise, we may be required to pledge additional collateral in order to maintain the current availability of the commitments thereunder, and we cannot assure you that we will be able to maintain a sufficiently high valuation to maintain the current commitments. Our borrowing base may be reduced if we dispose of a certain percentage of the value of the collateral securing our facility. As a result of certain asset sales in 2016, our borrowing base was reduced to $3.8 billion. In addition, we cannot be certain that our cash flow will be sufficient to allow us to pay the principal and interest on our debt and meet our other obligations. If we are unable to service our indebtedness and other obligations, we may be required to restructure or refinance all or part of our existing debt, sell assets, reduce capital expenditures, borrow more money or raise equity. Weequity, some or all of which may not be ableavailable to restructure or refinance our debt, reduce capital expenditures, sell assets, borrow more money or raise equityus on terms acceptable to us, if at all, or such alternative strategies may yield insufficient funds to make required payments on our indebtedness. In addition, our ability to comply with the financial and other restrictive covenants in our indebtedness is uncertain and will

could be affected by our future performance and events or circumstances beyond our control. Failure to comply with these covenants would result in an event of default under such indebtedness, the potential acceleration of our obligation to repay outstanding debt and the potential foreclosure on the collateral securing such debt, and could cause a cross-default under our other outstanding indebtedness. Any of the above risks could materially adversely affect our business, financial condition, cash flows and results of operations.

We have significant capital needs, and our ability to access the capital and credit markets to raise capital on favorable terms is limited by our debt level and industry conditions.
Disruptions in the capital and credit markets, in particular with respect to companies in the energy sector, could limit our ability to access these markets or may significantly increase our cost to borrow. Low commodity prices during 2015 and 2016, among other factors,have caused and may continue to cause lenders to increase the interest rates under our credit facilities, enact tighter lending standards, which we may not satisfy as a result of our debt level or otherwise, refuse to refinance existing debt around maturity on favorable terms or at all and may reduce or cease to provide funding to borrowers. If we are unable to access the capital and credit markets on favorable terms, it could materially adversely affecthave a material adverse effect on our business, financial condition, results of operations, cash flows and liquidity and our ability to repay or refinance our debt. Additionally, challenges in the economy have led and could further lead to reductions in the demand for oil and gas, or further reductions in the prices of oil and gas, or both, which could have a negative impact on our financial position, results of operations and cash flows.
We may not be ableIf we are unable to generate enough cash flow from operations to meetservice our debt obligations.indebtedness or are unable to use future borrowings to refinance our indebtedness or fund other capital needs, we may have to undertake alternative financing plans, which may have onerous terms or may be unavailable.
We expect ourOur earnings and cash flow tocould vary significantly from year to year due to the cyclical naturevolatility of our industry.hydrocarbon commodity prices. As a result, the amount of debt that we can manage in some periods may not be appropriate for us in other periods. Additionally, our future cash flow may be insufficient to meet our debt obligations and commitments. A range of economic, competitive, business and industry factors will affect our future financial performance and, as a result, our ability to generate cash flow from operations and service our debt. Factors that may cause us to generate cash flow that is insufficient to meet our debt obligations include the events and risks related to our business, many of which are beyond our control. Any cash flow insufficiency would materially adverselyhave a material adverse impact on our business, financial condition, results of operations, cash flows and liquidity and our ability to repay or refinance our debt.
If we are unable to generate enough cash flow from operations to service our indebtedness or are unable to use future borrowings to refinance our indebtedness or fund other capital needs, we may have to undertake alternative financing plans, which may have onerous terms or may be unavailable.
We cannot assure you that our business willdo not generate sufficient cash flow from operations to service our outstanding indebtedness, or thatif future borrowings will beare not available to us in an amount sufficient to enable us to pay or refinance our indebtedness, manage our working capital or fund our other capital needs. As a result, we may be required to undertake various alternative financing plans, which may include:
refinancing or restructuring all or a portion of our debt;
obtainingseeking alternative financing;financing or additional capital investment;
selling strategic assets;
reducing or delaying capital investments;
seeking to raise additional capital;investments, including by curtailing our drilling program; or
revising or delaying our strategic plans.
However, weWe cannot assure you that we would be able to implement any of the above alternative financing plans, if necessary, on commercially reasonable terms or at all, or that undertaking alternative financing plans, if necessary, would allow us to meet our debt obligations and capital requirements or that these actions would be permitted under the terms of our various debt instruments. If we are unsuccessful in implementing any required alternative financing plans or otherwise improving our liquidity, we may not be able to fund budgeted capital expenditures or meet our debt service requirements.
all. If we are unable to generate sufficient cash flow to satisfy our debt obligations or to obtain alternative financing, our business, financial condition, results of operations, cash flows and liquidity could be materially and adversely affected. Any failure to make scheduled payments of interest and principal on our outstanding indebtedness would likely result in a reduction of our credit rating, which could significantly harm our ability to incur additional indebtedness on acceptable terms. Further, if for any reason we are unable to meet our debt service and repayment obligations, we would be in default under the terms of the agreements governing our debt, which would allow our creditors under those agreements to declare all outstanding indebtedness thereunder to be due and payable (which would in turn trigger cross-acceleration or cross-default rights between the relevant agreements), the lenders under our credit facilityfacilities could terminate their commitments to extend credit, and the lenders could foreclose against our assets securing their borrowings and we could be forced into bankruptcy or liquidation. In addition, the lenders under our credit facilityfacilities could compel us to apply our available cash to repay our borrowings. If the amounts outstanding under the credit facilityfacilities or any of our other significant indebtedness were to be accelerated, we cannot assure you that our assets would be sufficient to repay in full the moneyamounts owed to the lenders or to our other debt holders.


Our variable rate indebtedness subjects us to interest rate risk, which could cause our debt service obligations to increase significantly.increase.
Borrowings under our revolving credit facility and term loan facility and floating rate senior notes due 2019 bear interest at a variable ratesrate and expose us to interest rate risk. As of December 31, 2019, we had $3.1 billion of variable rate indebtedness outstanding. If interest rates increase and we are unable to effectively hedge our interest rate risk on acceptable terms, our debt service obligations on the variable rate indebtedness would increase even though the amount borrowed remained the same, and our net income and cash available for servicing our indebtedness would decrease.same.
Restrictive covenants in certain of our debt agreements could limit our growth and our ability to finance our operations, fund our capital needs, respond to changing conditions and engage in other business activities that may be in our best interests.
Certain of ourOur debt agreements impose operating and financial restrictions on us. These restrictions limit our ability and that of our restricted subsidiaries to, among other things:
incur additional indebtedness;
make investments or loans;
create liens;
consummate mergers and similar fundamental changes;
make restricted payments;
make investments in unrestricted subsidiaries;
enter into transactions with affiliates; and
use the proceeds of asset sales.


We may be prevented from taking advantage of business opportunities that arise because of the limitations imposed on us by the restrictive covenants under certain of our debt agreements. The restrictions contained in the covenants could:
limit our ability to plan for, or react to, market conditions, to meet capital needs or otherwise to restrict our activities or business plan; and
adversely affect our ability to finance our operations, enter into acquisitions or divestitures to engage in other business activities that would be in our interest.
Also, our credit facility requires us to maintain compliance with specified financial ratios and satisfy certain financial condition tests. tests, including a leverage ratio as of the end of each fiscal quarter of not greater than 4.50 to1 through the fiscal quarter ending December 31, 2021, with step-downs to 4.25 to 1 for the fiscal quarter ending March 31, 2022 and to 4.00 to 1 for each fiscal quarter ending thereafter, a first lien secured leverage ratio of not greater than 2.50 to 1 as of the end of each fiscal quarter, and a fixed charge coverage ratio of not less than 2.00 to 1 as of the end of the fiscal quarter ending December 31, 2019, 2.25 to 1 as of the end of each fiscal quarter ending March 31 and June 30, 2020, and 2.50 to 1 as of the end of each fiscal quarter ending September 30, 2020 and thereafter. Our ability to comply with these ratios and financial condition tests may be affected by events beyond our control and, as a result, we may be unable to meet these ratios and financial condition tests. These financial ratio restrictions and financial condition tests could limit our ability to obtain future financings, make needed capital expenditures, withstand a continued downturn in our business or a downturn in the economy in general or otherwise conduct necessary corporate activities. DeclinesFurther declines in oil, NGL and natural gas prices, or a prolonged period of low oil, NGL and natural gas prices could eventually result in our failing to meet one or more of the financial covenants under our credit facility, which could require us to refinance or amend such obligations resulting in the payment of consent fees or higher interest rates, or require us to raise additional capital at an inopportune time or on terms not favorable to us.


A breach of any of these covenants or our inability to comply with the required financial ratios or financial condition tests could result in a default under our credit facility. A default under our credit facility that, if not cured or waived, could result in acceleration of all indebtedness outstanding thereunder. The accelerated debt would become immediately due and payable, which would in turn trigger cross-accelerationthereunder and cross-default rights under our other debt. If that should occur, we may be unable to pay all such debt or to borrow sufficient funds to refinance it. Even if new financing were then available, it may not be on terms that are acceptable to us. In addition, in the event of an event of default under the credit facility term loan or second lien notes,other indebtedness, the affected lenders could foreclose on the collateral securing the credit facility and require repayment of all borrowings outstanding thereunder. If the amounts outstanding under the credit facility or any of our

other indebtedness were to be accelerated, our assets may not be sufficient to repay in full the moneyamounts owed to the lenders or to our other debt holders. Moreover,
If we cannot meet the continued listing requirements of the NYSE, the NYSE may delist our common stock, which would have an adverse impact on the trading volume, liquidity and market price of our common stock and allow holders of our convertible senior notes to require us to repurchase their notes.
On December 10, 2019, we were notified by the New York Stock Exchange (the “NYSE”) that the average closing price of our common stock, $0.01 par value per share (the “Common Stock”), over a prior 30 consecutive trading day period was below $1.00 per share, which is the minimum average closing price per share required to maintain listing on the NYSE under Section 802.01C of the NYSE Listed Company Manual.  We have a period of six months following the receipt of the notice to regain compliance with the minimum share price requirement, with the possibility of extension at the discretion of the NYSE. In order to regain compliance, on the last trading day in any new indebtednesscalendar month during the cure period, the Common Stock must have: (i) a closing price of at least $1.00 per share; and (ii) an average closing price of at least $1.00 per share over the 30 trading day period ending on the last trading day of such month. If we incur may impose financial restrictionsfail to regain compliance with Section 802.01C of the NYSE Listed Company Manual by the end of the cure period, the Common Stock will be subject to the NYSE’s suspension and delisting procedures. To regain compliance with NYSE listing standards we intend to implement a reverse stock split, subject to approval of our board of directors and shareholders.
If the Common Stock ultimately were to be delisted for any reason, it could negatively impact us as it would likely reduce the liquidity and market price of the Common Stock; reduce the number of investors willing to hold or acquire the Common Stock; and negatively impact our ability to access equity markets and obtain financing. If the Common Stock were to be removed from listing on the NYSE (and the Common Stock were not to become listed on other covenants onspecified stock exchanges), holders of our convertible senior notes would have a right to require us that mayto repurchase their notes. As of December 31, 2019, there was $1.06 billion aggregate principal amount of convertible senior notes outstanding, and there can be more restrictive than our existing debt agreements.


no assurance we would be able to repurchase such notes if required to do so in connection with a delisting.
Our credit rating could negatively impact our availability and cost of capital and could require us to post more collateral under certain commercial arrangements.
Since December 2015, Moody’s Investor Services, Inc. and Standard & Poor’s Rating Services have significantly lowered our credit ratings. The downgrades were primarily a result of the effect of low oil and natural gas prices on our ability to generate cash flow from operations. We cannot provide assurance that our credit ratings will not be reduced if commodity prices decrease. Any downgrade to our credit ratings could negatively impact our availability and cost of capital.
Some of our counterparties have requested or required us to post collateral as financial assurance of our performance under certain contractual arrangements, such as gathering, transportation, processing and hedging agreements. These collateral requirements depend, in part, on our credit ratings. As of February 24, 2017,2020, we have received requests and posted approximately $275$60 million inof collateral under such arrangements (excluding the supersedeas bond with respectrelated to the 2019 Notes litigation discussed in Note 3certain of the notes to our consolidated financial statements included in Item 8 of this report). We have posted the required collateral, primarily in the form of letters of creditmarketing and cash, or are otherwise complying with these contractual requests for collateral.other contracts. We may be requested or required by other counterparties to post additional collateral in an aggregate amount of approximately $451$220 million, (excluding the supersedeas bond with respect to the 2019 Notes litigation), which may be in the form of additional letters of credit, cash or other acceptable collateral. Any downgrade to our credit ratings could impact the posting of collateral consisting of cash or letters of credit, which would reduce availability under our credit facility, willand negatively impact our liquidity.
Declines inIf commodity prices could result inremain depressed or drilling efforts are unsuccessful, we may be required to record write downs of the carrying value of our oil and natural gas properties.
UnderWe have been required to write down the full cost methodcarrying value of accounting for costs related tocertain of our oil and natural gas properties in the past and there is a risk that we arewill be required to write downtake additional writedowns in the future. Writedowns may occur in the future when oil and natural gas prices are low, or if we have downward adjustments to our estimated proved reserves, increases in our estimates of operating or development costs, or due to the anticipated sale of properties.
The successful efforts method of accounting requires that we periodically review the carrying value of our oil and natural gas assets if capitalized costs exceed the quarterly ceiling limit, whichproperties for possible impairment. Impairment is based on the average of commodity prices on the first day of the month over the trailing 12-month period. Such write-downs can be material. For example,recognized for the year ended December 31, 2016, we reported non-cash impairment chargesexcess of book value over fair value when the book value of a proven property is greater than the expected undiscounted future net cash flows from that property and on our oil and natural gas properties totaling $2.564 billion, primarily resulting fromacreage when conditions indicate the carrying value is not recoverable. We may be required to write down the carrying value of a substantial decrease in the trailing 12-month average first-day-of-the-monthproperty based on oil and natural gas prices throughout 2016. The trailing 12-month average first-day-of-the-month prices usedat the time of the impairment review, or as a result of continuing evaluation of drilling results, production data, economics, divestiture activity, and other factors. A writedown constitutes a non-cash charge to calculateearnings and does not impact cash or cash flows from operating activities; however, it reflects our oillong-term ability to recover an investment, reduces our reported earnings and natural gas reserves decreased from $50.28 per bblincreases certain leverage ratios. See Impairment of oilOil and $2.58 per mcfNatural Gas Properties included in Item 7 of natural gas as of December 31, 2015 to $42.75 per bbl of oil and $2.49 per mcf of natural gas as of December 31, 2016. As of December 31, 2016, the present value of estimated future net revenue of our proved reserves, discounted at an annual rate of 10%, was $4.4 billion. Estimated future net revenue represents the estimated future gross revenue to be generated from the production of proved reserves, net of estimated production and future development costs, using prices and costs under existing economic conditions as of that date. Further material write-downs in subsequent quarters could occur if the trailing 12-month commodity prices fall as compared to the commodity prices used as of December 31, 2016.this report for further information.

Significant capital expenditures are required to replace our reserves and conduct our business.
Our exploration, development and acquisition activities require substantial capital expenditures. We intend to fund our capital expenditures through cash flows from operations, and to the extent that is not sufficient, cash on hand and borrowings under our revolving credit facility. Our ability to generate operating cash flow is subject to a number of risks and variables, such as the level of production from existing wells, prices of oil, natural gas and NGL, our success in developing and producing new reserves and the other risk factors discussed herein. Our forecasted 2020 capital expenditures, inclusive of capitalized interest, are $1.3 - $1.6 billion compared to our 2019 capital spending level of $2.2 billion. Management continues to review operational plans for 2020 and beyond, which could result in changes to projected capital expenditures and projected revenues from sales of oil, natural gas and NGL. If we are unable to fund our capital expenditures as planned, we could experience a curtailment of our exploration and development activity, a loss of properties and a decline in our oil, natural gas and NGL reserves.
If we are not able to replace reserves, we may not be able to sustain production.
Our future success depends largely upon our ability to find, develop or acquire additional oil and natural gas reserves that are economically recoverable. Unless we replace the reserves we produce through successful development, exploration or acquisition activities, our proved reserves and production will decline over time. Our reserve estimates as of December 31, 2016, reflect an expected decline in the production rate on our producing properties of approximately 31% in 2017 and 22% in 2018. Thus, our future oil and natural gas reserves and production, and therefore our cash flow and income, are highly dependent on our success in efficiently developing our current reserves and economically finding or acquiring additional recoverable reserves.

The actual quantities of and future net revenues from our proved reserves may be less than our estimates.
The estimates of our proved reserves and the estimated future net revenues from our proved reserves included in this report are based upon various assumptions, including assumptions required by the SEC relating to oil, natural gas and NGL prices, drilling and operating expenses, capital expenditures, taxes and availability of funds. The process of estimating oil, natural gas and NGL reserves is complex and involves significant decisions and assumptions associated with geological, geophysical, engineering and economic data for each well. Therefore, these estimates are subject to future revisions.
Actual future production, oil, natural gas and NGL prices, revenues, taxes, development expenditures, operating expenses and quantities of recoverable oil, natural gas and NGL reserves most likely will vary from these estimates. Such variations may be significant and could materially affect the estimated quantities and present value of our proved reserves. In addition, we may adjust estimates of proved reserves to reflect production history, results of exploration and development drilling, prevailing oil and natural gas prices and other factors, many of which are beyond our control.
As of December 31, 2016,2019, approximately 30%46% of our estimated proved reserves (by volume) were undeveloped. These reserve estimates reflect our plans to make significant capital expenditures to convert our PUDs into proved developed reserves, including approximately $2.9$5 billion during the next five years ending in 2021.2024. You should be aware that the estimated development costs may not equal our actual costs, development may not occur as scheduled and results may not be as estimated. If we choose not to develop our PUDs, or if we are not otherwise able to successfully develop them, we will be required to remove them from our reported proved reserves. In addition, under the SEC's reserve reporting rules, because PUDs generally may be booked only if they relate to wells scheduled to be drilled within five years of the date of booking, we may be required to remove any PUDs that are not developed within this five-year time frame.
You should not assume that the present values included in this report represent the current market value of our estimated reserves. In accordance with SEC requirements, the estimates of our present values are based on prices and costs as of the date of the estimates. The price on the date of estimate is calculated as the average oil and natural gas price during the 12 months ending in the current reporting period, determined as the unweighted arithmetic average of prices on the first day of each month within the 12-month period. The December 31, 20162019 present value is based on a $42.75$55.69 per bbl of oil price and a $2.49$2.58 per mcf of natural gas price, before considering basis differential adjustments. Actual future prices and costs may be materially higher or lower than the prices and costs as of the date of an estimate.
The timing of both the production and the expenses from the development and production of oil and natural gas properties will affect both the timing of actual future net cash flows from our proved reserves and their present value. Any changes in consumption or indemand for oil and natural gas, governmental regulations or taxation will also affect the actual future net cash flows from our production. In addition, the 10% discount factor whichthat is required by the SEC to be used in calculating discounted future net cash flows for reporting purposes is not necessarily the most appropriate discount factor. Interest

rates in effect from time to time and the risks associated with our business or the oil and gas industry in general will affect the appropriateness of the 10% discount factor.
Our development and exploratory drilling efforts and our well operations may not be profitable or achieve our targeted returns.
We have a substantial inventory of undeveloped properties. Development and exploratory drilling and production activities are subject to many risks, including the risk that no commercially productive reservoirs will not be discovered. We have acquired undeveloped properties that we believe will enhance our growth potential and increase our earnings over time. However, we cannot assure you that all prospects will be economically viable or that we will not abandon our initial investments. Additionally, there can be no assurance that undeveloped properties acquired by us will be profitably developed, that new wells drilled by us in prospects that we pursue will be productive, or that we will recover all or any portion of our investment in such undeveloped properties or wells.
Drilling for oil and natural gas may involve unprofitable efforts, not only from dry wells but also from wells that are productive but do not produce sufficient commercial quantities to cover the drilling, operating and other costs. The cost of drilling, completing and operating a well is often uncertain, and many factors can adversely affect the economics of a well or property. Drilling and completion operations may be curtailed, delayed or canceled as a result of unexpected drilling conditions, title problems, equipment failures or accidents, shortages of midstream transportation, equipment or personnel, environmental issues, state or local bans or moratoriums on hydraulic fracturing and produced water disposal, and a decline in commodity prices, among others. The profitability of wells, particularly in certain of the areas in which we operate, will be reduced or eliminated asif commodity prices decline. In addition, wells that are profitable

may not meet our internal return targets, which are dependent upon the current and future market prices for oil, natural gas and NGL, costs associated with producing oil, natural gas and NGL and our ability to add reserves at an acceptable cost. All costs of development and exploratory drilling activities are capitalized, even if the activities do not result in commercially productive discoveries, which may result in a future impairment of our oil and natural gas properties if commodity prices decrease.
We rely to a significant extent on seismic data and other advanced technologies in evaluating undeveloped properties and in conducting our exploration activities. The seismic data and other technologies we use do not allow us to know conclusively, prior to acquisition of undeveloped properties, or drilling a well, whether oil or natural gas is present or may be produced economically. If we incur significant expense in acquiring or developing properties that do not produce as expected or at profitable levels, it could have a material adverse effect on our results of operations and financial condition.
Certain of our undeveloped leasehold assetsproperties are subject to leases that will expire over the next several years unless production is established on units containing the acreage.acreage or the leases are renewed.
Leases on oil and natural gas properties typically have a term of three to five years, after which they expire unless, prior to expiration, a well is drilled and production of hydrocarbons in paying quantities is established. If our leases on our undeveloped properties expire and we are unable to renew the leases, we will lose our right to develop the related properties. Although we seek to actively manage our undeveloped properties, our drilling plans for these areas are subject to change based upon various factors, including drilling results, oil and natural gas prices, the availability and cost of capital, drilling and production costs, availability of drilling services and equipment, gathering system and pipeline transportation constraints and regulatory approvals. Low commodity prices may cause us to delay our drilling plans and, as a result, lose our right to develop the related properties.
Our commodity price risk management activities may limit the benefit we would receive from increases in commodity prices, we receive for our oil, natural gas and NGL sales,may require us to provide collateral for derivative liabilities and involve risk that our counterparties may be unable to satisfy their obligations to us.
In order toTo manage our exposure to price volatility, in marketing our production, we enter into oil, and natural gas and NGL price derivative contracts for a portion of our expected production. Commodity price derivativescontracts. Our oil, natural gas and NGL derivative arrangements may limit the pricesbenefit we actually realize forwould receive from increases in commodity prices. The fair value of our oil, natural gas and NGL sales in the future. Our commodity price risk management activities will impact our earnings in various ways, including recognition of certain mark-to-market gains and losses on derivative instruments. The fair value of our oil and natural gas derivative instruments can fluctuate significantly between periods. In addition,Our decision to mitigate cash flow volatility through derivative arrangements, if any, is based in part on our commodity price risk management transactionsview of current and future market conditions and our desire to stabilize cash flows necessary for the development of our proved reserves. We may expose uschoose not to enter into derivatives if the pricing environment for certain time periods is not deemed to be favorable. Additionally, we may choose to liquidate existing derivative positions prior to the riskexpiration of financial loss intheir contractual maturities to monetize gain positions for the purpose of funding our capital program.

Most of our oil, natural gas and NGL derivative contracts are with counterparties under bi-lateral hedging arrangements. Under a majority of our arrangements, the collateral provided for our obligations is secured by the same hydrocarbon interests that secure our senior secured revolving credit facility. Under other arrangements, our obligations under the bi-lateral hedging arrangements must be secured by cash or letters of credit to the extent that any mark-to-market amounts owed to us or by us exceed defined thresholds. Under certain circumstances.circumstances, the cash collateral value posted could fall below the coverage designated, and we would be required to post additional cash or letter of credit collateral under our hedging arrangements. Our counterparties’ obligations under the arrangements must be secured by cash or letters of credit to the extent that any mark-to-market amounts owed to us exceed defined thresholds. Collateral requirements are dependent to a large extent on oil and natural gas prices.
DerivativeOil, natural gas and NGL derivative transactions expose us to the risk that our counterparties, which are generally financial institutions, may be unable to satisfy their obligations to us. During periods of declining commodity prices, such as the period beginning in the fourth quarter of 2014 and continuing into the first half of 2016, the value of our commodity derivative asset positions increase, which increases our counterparty exposure. Although the counterparties to our hedging arrangements are required to secure their obligations to us under certain scenarios, if any of our counterparties were to default on its obligations to us under the derivative contracts or seek bankruptcy protection, it could have an adverse effect on our ability to fund our planned activities and could result in a larger percentage of our future productioncash flows being exposed to commodity price changes.
Most of our oil, natural gas and NGL derivative contracts are with 10 counterparties under bi-lateral hedging arrangements. Under some of those arrangements, the counterparties’ and our obligations under the bi-lateral hedging arrangements must be secured by cash or letters of credit to the extent that any mark-to-market amounts owed to us or by us exceed defined thresholds. Under certain circumstances, the cash collateral value posted could fall below the coverage designated, and we would be required to post additional cash or letter of credit collateral under our hedging arrangements. Under other arrangements, the collateral provided for our obligations under these arrangements are secured by hydrocarbon interests. Future collateral requirements are dependent to a great extent on oil and natural gas prices.

The ultimate outcome of pending legal and governmental proceedings is uncertain, and there are significant costs associated with these matters.
We are defending against claims by royalty owners alleging, among other things, that we used below-market prices, made improper deductions, used improper measurement techniques, and/or entered into arrangements with affiliates that resulted in underpayment of royalties in connection with the production and sales of natural gas and NGL.NGL and similar theories. Numerous cases primarily in Texas, Pennsylvania and Ohio, are pending. The resolution of disputes regarding past payments could cause our future obligations to royalty owners to increase and would negatively impact our future results of operations.
In addition, there are ongoing governmental regulatory investigations and inquiries into various matters such matters as our royalty practices, possible antitrust violations and our accounting methodology for the acquisition and classification of oil and natural gas properties.practices. The outcome of any pending or future litigation or governmental regulatory matter is uncertain and may adversely affect our results of operations. In addition, we have incurred substantial legal expenses in the past three years, and such expenses may continue to be significant in the future. Further, attention to these matters by members of our senior management has been required, reducing the time they have available to devote to managing our business.


We may continue to incur cash and noncash charges that would negatively impact our future results of operations and liquidity.
While executing our strategic priorities to reduce financial leverage and complexity and to lowerreduce our capital expenditures in the face of lower commodity prices, we have incurred certain cash charges, including contract termination charges, restructuring and other termination costs, financing extinguishment costs and charges for unused natural gas transportation and gathering capacity. As we continue to focus on our strategic priorities, we may incur additional cash and noncash charges in 20172020 and in future years. If incurred, these charges could materially adversely impact our future results of operations and liquidity.
Oil and natural gas drillingoperations are uncertain and producing operations can be hazardousinvolve substantial costs and may expose us to liabilities.risks.
Oil and natural gas operationsOur operating activities are subject to manynumerous costs and risks, including well blowouts, crateringthe risk that we will not encounter commercially productive oil or gas reservoirs. Drilling for oil, gas and explosions, pipe failures, fires, formations with abnormal pressures, uncontrollable flowsNGLs can be unprofitable, not only from dry holes, but from productive wells that do not return a profit because of insufficient revenue from production or high costs. Substantial costs are required to locate, acquire and develop oil naturaland gas brineproperties, and we are often uncertain as to the amount and timing of those costs. Our cost of drilling, completing, equipping and operating wells is often uncertain before drilling commences. Declines in commodity prices and overruns in budgeted expenditures are common risks that can make a particular project uneconomic or well fluids, oil spills, severe weather, natural disasters, groundwater contaminationless economic than forecasted. While both exploratory and other environmental hazards and risks. Some ofdevelopmental drilling activities involve these risks, exploratory drilling involves greater risks of dry holes or hazards could materiallyfailure to find commercial quantities of hydrocarbons. In addition, our oil and adversely affectgas properties can become damaged, our revenuesoperations may be curtailed, delayed or canceled and expenses by reducing or shutting in production from wells or otherwise negatively impacting the projected economic performancecosts of our prospects. For our non-operated properties, we are dependent on the operator for operational and regulatory compliance. If any of these risks occurs, we could sustain substantial lossessuch operations may increase as a result of:of a variety of factors, including, but not limited to:
injuryunexpected drilling conditions, pressure conditions or irregularities in reservoir formations;
equipment failures or accidents;

fires, explosions, blowouts, cratering or loss of life;well control, such as the January 30, 2020 well control incident at a wellsite located in Burleson County, Texas, causing the deaths of three of our contractors’ employees and injuring a fourth;
severe damagethe mishandling or underground migration of fluids and chemicals;
adverse weather conditions and natural disasters, such as tornadoes, earthquakes, hurricanes and extreme temperatures;    
issues with title or in receiving governmental permits or approvals;
restricted takeaway capacity for our production, including due to inadequate midstream infrastructure or constrained downstream markets;
environmental hazards or liabilities;
restrictions in access to, or destructiondisposal of, property, natural resourceswater used or equipment;produced in drilling and completion operations;
pollutionshortages or other environmental damage;
clean-up responsibilities;    
regulatory investigations and administrative, civil and criminal penalties;delays in the availability of services or delivery of equipment; and
injunctions resultingunexpected or unforeseen changes in limitationregulatory policy, and political or suspensionpublic opinion.
The occurrence of operations.
A material event suchone or more of these factors could result in a partial or total loss of our investment in a particular property, as those described above could expose us to liabilities, monetary penalties or interruptions in our business operations.well as significant liabilities. While we may maintain insurance against some, but not all, of the risks described above, our insurance may not be adequate to cover casualty losses or liabilities, and our insurance does not cover penalties or fines that may be assessed by a governmental authority. For certain risks, such as political risk, business interruption, war, terrorism and piracy, we have limited or no insurance coverage. Also, in the future we may not be able to obtain insurance at premium levels that justify its purchase. The occurrence of a significant event against which we are not fully insured may expose us to liabilities.

Moreover, certain of these events could result in environmental pollution and impact to third parties, including persons living in proximity to our operations, our employees and employees of our contractors, leading to possible injuries, death or significant damage to property and natural resources.
We are subject to complexextensive governmental regulation, which can change and could adversely impact our business.
Our operations are subject to extensive federal, state, tribal, local and other laws, rules and regulations, relatingincluding with respect to environmental protection that can adversely affectmatters, worker health and safety, wildlife conservation, the cost, mannergathering and feasibilitytransportation of doing business,oil, gas and further regulationNGLs, conservation policies, reporting obligations, royalty payments, unclaimed property and the imposition of taxes. Such regulations include requirements for permits to drill and to conduct other operations and for provision of financial assurances (such as bonds) covering drilling, completion and well operations. If permits are not issued, or if unfavorable restrictions or conditions are imposed on our drilling or completion activities, we may not be able to conduct our operations as planned. In addition, we may be required to make large, sometimes unexpected, expenditures to comply with applicable governmental laws, rules, regulations, permits or orders.
In addition, changes in public policy have affected, and in the future could further affect, our operations. Regulatory developments could, among other things, restrict production levels, impose price controls, change environmental protection requirements and increase taxes, royalties and other amounts payable to the government. Our operating and compliance costs impose additional operating restrictions and cause delays.
Our operations and properties are subject to numerous federal, regional, state and localcould increase further if existing laws and regulations governing the release of pollutantsare revised, reinterpreted, or otherwise relating to environmental protection. Theseif new laws and regulations govern the following, among other things:
conductbecome applicable to our operations. We do not expect that any of our exploration, drilling, completion, production and midstream activities;
amounts and types of emissions and discharges;
generation, management, and disposition of hazardous substances and waste materials;
reclamation and abandonment of wells and facility sites; and
remediation of contaminated sites.
In addition, these laws and regulations may impose substantial liabilities for our failure to comply or for any contamination resulting fromwill affect our operations includingmaterially differently than they would affect other companies with similar operations, size and financial strength. Although we are unable to predict changes to existing laws and regulations, such changes could significantly impact our profitability, financial condition and liquidity. This is particularly true of changes related to pipeline safety, seismic activity and climate change, as discussed below.
Pipeline Safety. The pipeline assets in which we own interests are subject to stringent and complex regulations related to pipeline safety and integrity management. The Pipeline and Hazardous Materials Safety Administration (PHMSA) has established a series of rules that require pipeline operators to develop and implement integrity management programs for gas, NGL and condensate transmission pipelines as well as for certain low stress pipelines and gathering lines transporting hazardous liquids, such as oil, that, in the assessmentevent of administrative, civila failure, could affect “high consequence areas.” In October 2019, PHMSA issued three new final rules, that, among other things, extend certain requirements for integrity assessments and criminal penalties;leak detections beyond high consequence areas. At this time, we cannot

predict the cost of these requirements or other potential new or amended regulations, but they could be significant. Moreover, violations of pipeline safety regulations can result in the imposition of investigatory, remedial, and corrective action obligations or the incurrence of capital expenditures; the occurrence of delays in the development of projects; and the issuance of injunctions restricting or prohibiting some or all of the Company’s activities in a particular area. Future environmental laws and regulations imposing further restrictions on the emission of pollutants into the air, discharges into state or U.S. waters, wastewater disposal and hydraulic fracturing, or the designation of previously unprotected species as threatened or endangered in areas where we operate, may negatively impact our industry. We cannot predict the actions that future regulation will require or prohibit, but our business and operations could be subject to increased operating and compliance costs if certain regulatory proposals are adopted. In addition, such regulations may have an adverse impact on our ability to develop and produce our reserves.significant penalties.
Federal and state legislative and regulatory initiatives relating to hydraulic fracturing could result in increased costs and additional operating restrictions or delays.
Hydraulic Fracturing. Several states have adopted or are considering adopting regulations that could impose more stringent permitting, public disclosure and/or well construction requirements on hydraulic fracturing operations. In addition to state laws, some local municipalities have adopted or are considering adopting land use restrictions, such as city ordinances, that may restrict or prohibit the performance of well drilling in general and/or hydraulic fracturing in particular. There are also certain governmental reviews either underway or being proposed that focus on deep shale and other formation completion and production practices, including hydraulic fracturing. These studies assess, among other things, the risks of groundwater contamination and earthquakes caused by hydraulic fracturing and other exploration and production activities. Depending on the outcome of these studies, federal and state legislatures and agencies may seek to further regulate or even ban such activities, as some state and local governments have already done. We cannot predict whether additional federal, state or local laws or regulations applicable to hydraulic fracturing will be enacted in the future and, if so, what actions any such laws or regulations would require or prohibit. If additional levels of regulation or permitting requirements were imposed on hydraulic fracturing operations, our business and operations could be subject to delays, increased operating and compliance costs and process prohibitions.potential bans. Additional regulation could also lead to greater opposition to hydraulic fracturing, including litigation.
Seismic Activity. Earthquakes in some of our operating areas and elsewhere have prompted concerns about seismic activity. Legislative and regulatory initiatives intended to address these concerns may result in additional levels of regulation or other requirements that could lead to operational delays, increase our operating and compliance costs or otherwise adversely affect our operations. In addition, we are currently defending against certain third- party lawsuits and could be subject to additional claims, seeking damages or other remedies as a result of alleged induced seismic activity in our areas of operation.
Climate Change. Continuing political and social attention to the issue of climate change has resulted in legislative, regulatory and other initiatives to reduce greenhouse gas emissions, such as carbon dioxide and methane. Policy makers at both the U.S. federal and state levels have introduced legislation and proposed new regulations designed to quantify and limit the emission of greenhouse gases through inventories, limitations and/or taxes on greenhouse gas emissions. EPA and the BLM have issued regulations for the control of methane emissions, which also include leak detection and repair requirements, for the oil and gas industry; however, inSeptember 2018, BLM published a final rule to repeal certain requirements of these regulations. Similarly, in September 2019, EPA published a rule proposing to reconsider certain aspects of its regulations for the control of methane emissions. Nevertheless, several states where we operate, including Wyoming, have imposed venting and flaring limitations designed to reduce methane emissions from oil and gas exploration and production activities. Legislative and state initiatives to date have generally focused on the development of renewable energy standards and/or cap-and-trade and/or carbon tax programs. A cap-and-trade program generally would cap overall greenhouse gas emissions on an economy- wide basis and require major sources of greenhouse gas emissions or major fuel producers to acquire and surrender emission allowances. A cap and trade program could impose direct costs on us through the purchase of allowances and could impose indirect costs by incentivizing consumers to shift away from fossil fuels. A carbon tax could directly increase our costs of operation and similarly incentivize consumers to shift away from fossil fuels.
In addition, activists concerned about the potential effects of climate change have directed their attention at sources of funding for fossil-fuel energy companies, which has resulted in an increasing number of financial institutions, funds and other sources of capital restricting or eliminating their investment in oil and natural gas activities. Ultimately, this would make it more difficult and expensive to secure funding for exploration and production activities. These various legislative, regulatory and other activities addressing greenhouse gas emissions could adversely affect our business, including by imposing reporting obligations on, or limiting emissions of greenhouse gases from, our equipment and operations, which could require us to incur costs to reduce emissions of greenhouse gases associated with our operations. Limitations on greenhouse gas emissions could also adversely affect demand for oil and gas, which could lower the value of our reserves and have a material adverse effect on our profitability, financial condition and liquidity.
Conservation measures and technological advances could reduce demand for natural gas and oil.
Fuel conservation measures, alternative fuel requirements, increasing consumer demand for alternatives to natural gas and oil, technological advances in fuel economy and energy generation devices could reduce demand for natural gas and oil. The impact of the changing demand for natural gas and oil could adversely impact our earnings, cash flows and financial position.
Our ability to produce oil, natural gas and NGL economically and in commercial quantities could be impaired if we are unable to acquire adequate supplies of water for our operations or are unable to dispose of or recycle the water we use economically and in an environmentally safe manner.

Development activities, require the use of water. For example, theparticularly hydraulic fracturing, process that we employ to produce commercial quantities of oil and natural gas from many reservoirs requiresrequire the use and disposal of significant quantities of water. In certain areas, there may be insufficient local aquifer capacity to provide a source of water for drilling activities. Water must be obtained from other sources and transported to the drilling site. Our inability to secure sufficient amounts of water, or to dispose of or recycle the water used in our operations, could adversely impact our operations in certain

areas. The imposition of new environmental initiatives and regulations, such as the Oklahoma Corporation Commission’s (OCC)OCC’s volume reduction plans for oil and natural gas disposal wells injecting wastewater into the Arbuckle formation and the EPA’s June 2016 pretreatment standards for wastewater, could further restrict our ability to conduct certain operations such as hydraulic fracturing or disposal of waste, including, but not limited to, produced water, drilling fluids and other materials associated with the exploration, development or production of oil and natural gas.
Environmental matters and related costs can be significant.

Potential legislative and regulatory actions addressing climate change could significantly impact our industry and the Company, causing increased costs and reduced demand for oil and natural gas.
Various state governments and regional organizations have considered enacting new legislation and promulgating new regulations governingAs an owner, lessee or restricting the emissionoperator of greenhouse gases from stationary sources such as our equipment and operations. At the federal level, the EPA has already made findings and issued regulations that require us to establish and report an inventory of greenhouse gas emissions. Additional legislative and/or regulatory proposals for restricting greenhouse gas emissions or otherwise addressing climate change could require us to incur additional operating costs and could adversely affect demand for the oil and natural gas that we sell. The potential increase in our operating costs could include new or increased costs to obtain permits, operate and maintain our equipment and facilities, install new emission controls on our equipment and facilities, acquire allowances to authorize our greenhouse gas emissions, pay taxes related to our greenhouse gas emissions and administer and manage a greenhouse gas emissions program. Even without federal legislation or regulation of greenhouse gas emissions, states may pursue the issue either directly or indirectly.
In addition, the United States was actively involved in the United Nations Conference on Climate Change in Paris, which led to the creation of the Paris Agreement. The Paris Agreement will require countries to review and “represent a progression” in their nationally determined contributions, which set emissions reduction goals, every five years. The Paris Agreement could further drive regulation in the United States. Restrictions on emissions of methane or carbon dioxide that have been or may be imposed in various states, or at the federal level could adversely affect the oil and gas industry. Moreover, incentivesproperties, we are subject to conserve energy or use alternative energy sources as a meansvarious federal, state, tribal and local laws and regulations relating to discharge of addressing climate change could reduce demandmaterials into, and protection of, the environment. These laws and regulations may, among other things, impose liability on us for oilthe cost of remediating pollution that results from our operations. Environmental laws may impose strict, joint and natural gas. Finally, we note that some scientists have concluded that increasing concentrations of greenhouse gasesseveral liability, and failure to comply with environmental laws and regulations can result in the Earth's atmosphere may produce climateimposition of administrative, civil or criminal fines and penalties, as well as injunctions limiting operations in affected areas. Any future costs associated with these matters are uncertain and will be governed by several factors, including future changes that have significant physical effects, such as higher sea levels, increased frequency and severityto regulatory requirements. Changes in or additions to public policy regarding the protection of storms, droughts, floods, and other climatic events. If any such effects were to occur, theythe environment could have an adverse effecta significant impact on our financial conditionoperations and results of operations.profitability.
The taxation of independent producers is subject to change, and federal and state proposals being consideredchanges in tax law could increase our cost of doing business.business.
We are subject to taxation by the various taxing authorities at the federal, state and local levels where we do business. Legislation or regulation that could affectNew legislation increasing our tax burden could be enacted by any of these governmental authorities. Recently, legislative changes to imposeimposing additional taxes or increases to existing taxes were proposedconsidered in Louisiana, Ohio, Oklahoma, Pennsylvania and Pennsylvania. AnyWyoming. It is possible that any of these proposals, if enacted,states could makeenact new tax legislation making it more costly for us to explore for oil and natural gas resources.
Evolving OTC derivatives regulation could impact the effectiveness of our commodity hedging program.
In July 2010, the U.S. Congress enacted the Dodd-Frank Wall Street Reform and Consumer Protection Act (the Dodd-Frank Act), which contains measures aimed at migrating over-the-counter (OTC) derivative markets to exchange-traded and cleared markets. Certain companies that use derivatives to hedge commercial risk, referred to as end-users, are permitted to continue to use OTC derivatives under newly adopted regulations. We maintain an active price and basis risk management program related to the oil and natural gas we produce for our own account in order to manage the impact of low commodity prices and to predict future cash flows with greater certainty. We have used the OTC market exclusively for our oil and natural gas derivative contracts, and we have also used OTC derivatives to manage risks arising from interest rate exposure. The Dodd-Frank Act and the rules and regulations promulgated thereunder should permit us, as an end user, to continue to utilize OTC derivatives, but could cause increased costs and reduce liquidity in such markets. Such changes could materially reduce our hedging opportunities which would negatively affect our revenues and cash flow during periods of low commodity prices. New position limits rules proposed under the Dodd-Frank Act could also impact our commodity hedging program and could, if enacted as proposed, affect our ability to continue to use the full scope of OTC derivatives to hedge commodity price risk in the manner that we have in the past.
The oil and gas exploration and production industry is very competitive, and some of our competitors have greater financial and other resources than we do.
We face competition in every aspect of our business, including, but not limited to, buying and selling reserves and leases, obtaining goods and services needed to operate our business and marketing oil, natural gas or NGL. Competitors include multinational oil companies, independent production companies and individual producers and operators. Some of our competitors have greater financial and other resources than we do and, due to our debt levels

and other factors, may have greater access to the capital and credit markets. As a result, these competitors may be able to address these competitive factors more effectively or weather industry downturns more easily than we can. We also face indirect competition from alternative energy sources, including wind, solar and electric power.
Our performance depends largely on the talents and efforts of highly skilled individuals and on our ability to attract new employees and to retain and motivate our existing employees. Competition in our industry for qualified employees is intense. If we are unsuccessful in attracting and retaining skilled employees and managerial talent, our ability to compete effectively may be diminished. We also compete for the equipment required to explore, develop and operate properties. Typically, during times of rising commodity prices, drilling and operating costs will also increase. During these periods, there is often a shortage of drilling rigs and other oilfield equipment and services, which could adversely affect our ability to execute our development plans on a timely basis and within budget.
Risks related to potential acquisitions or dispositions may adversely affect our business.
From time to time, we evaluate acquisitions and dispositions of assets, businesses and other investments. These transactions may not result in the anticipated benefits or efficiencies. In addition, acquisitions may be financed by borrowings, requiring us to incur more debt, or by the issuance of our common stock. Any such acquisition or disposition involves risks and we cannot assure you that:
any acquisition would be successfully integrated into our operations and internal controls;
the due diligence conducted prior to an acquisition would uncover situations that could result in financial or legal exposure, such as title defects and potential environmental and other liabilities;
post-closing purchase price adjustments will be diminished.realized in our favor;
our assumptions about, among other things, reserves, estimated production, revenues, capital expenditures, operating, operating expenses and costs would be accurate;

any investment, acquisition, disposition or integration would not divert management resources from the operation of our business; and
any investment, acquisition, or disposition or integration would not have a material adverse effect on our financial condition, results of operations, cash flows or reserves.
If any of these risks materialize, the benefits of such acquisition or disposition may not be fully realized, if at all, and our financial condition, results of operations, cash flows and reserves could be negatively impacted.
A deterioration in general economic, business or industry conditions would have a material adverse effect on our results of operations, liquidity and financial condition.
In recent years,Historically, concerns about global economic growth have had a significant impact on global financial markets and commodity prices. If the economic climate in the United States or abroad deteriorates, worldwide demand for petroleum products could diminish, which could impact the price at which we can sell our production, affect the ability of our vendors, suppliers and customers to continue operations and materially adversely impact our results of operations, liquidity and financial condition.
Terrorist activities could materially and adversely affect our business and results of operations.
Terrorist attacks and the threat of terrorist attacks, whether domestic or foreign attacks, as well as military or other actions taken in response to these acts, could cause instability in the global financial and energy markets. Continued hostilities in the Middle East and the occurrence or threat of terrorist attacks in the United States or other countries could adversely affect the global economy in unpredictable ways, including the disruption of energy supplies and markets, increased volatility in commodity prices, or the possibility that the infrastructure on which we rely could be a direct target or an indirect casualty of an act of terrorism, and, in turn, could materially and adversely affect our business and results of operations.
Negative public perception regarding us and/or our industry could have an adverse effect on our operations.
Negative public perception regarding us and/or our industry resulting from, among other things, concerns raised by advocacy groups about hydraulic fracturing, waste disposal, oil spills, andseismic activity, climate change, explosions of natural gas transmission lines and the development and operation of pipelines and other midstream facilities may lead to increased regulatory scrutiny, which may, in turn, lead to new state and federal safety and environmental laws, regulations, guidelines and enforcement interpretations. Additionally, environmental groups, landowners, local groups and other advocates may oppose our operations through organized protests, attempts to block or sabotage our operations or those of our midstream transportation providers, intervene in regulatory or administrative proceedings involving our assets or those of our midstream transportation providers, or file lawsuits or other actions designed to prevent, disrupt or delay the development or operation of our assets and business or those of our midstream transportation providers. These actions may cause operational delays or restrictions, increased operating costs, additional regulatory burdens and increased risk of litigation. Moreover, governmental authorities exercise considerable discretion in the timing and scope of permit issuance and the public may engage in the permitting process, including through intervention in the courts. Negative public perception could cause the permits we needrequire to conduct our operations to be withheld, delayed or burdened by requirements that restrict our ability to profitably conduct our business.
We have limited The 2020 presidential and congressional elections may result in a change in administration and control overof Congress with the potential consequence of increased restrictions on oil and gas production activities, on properties we do not operate.
Other companies operate some of the properties in which we have an interest. For the year ended December 31, 2016, we did not operate approximately 7% of our daily production volumes. We have limited ability to influence or control the operation or future development of these non-operated properties, including compliance with environmental, safety and other regulations, or the amount of capital expenditures that we are required to fund with respect to them. The failure of an operator of our wells to adequately perform operations, an operator's breach of the applicable agreements or an operator's failure to act in ways that are in our best interest could reduce our production and revenues. Our dependence on the operator and other working interest owners for these projects and our limited ability to influence or control the operation and future development of these properties could materially adversely affect our industry and our financial condition and results of operations.
Recently, activists concerned about the realizationpotential effects of our targeted returns onclimate change have directed their attention towards sources of funding for fossil-fuel energy companies, which has resulted in certain financial institutions, funds and other sources of capital restricting or eliminating their investment in drilling or acquisition activitiesenergy-related activities. Ultimately, this could make it more difficult to secure funding for exploration and lead to unexpected future costs.production activities.
Our operations may be adversely affected by pipeline, trucking and gathering system capacity constraints.constraints and may be subject to interruptions that could adversely affect our cash flow.
In certain shaleresource plays, the capacity of gathering systems and transportation pipelinessystems is insufficient to accommodate potential production from existing and new wells. We rely heavily on third parties to meet our oil, natural gas and NGL gathering needs. Capital constraints could limit the construction of new pipelines and gathering systems and the providing or expansion of trucking services by third parties. Until this new capacity is available, we may experience delays in producing and selling our oil, natural gas and NGL. In such event, we might have to shut in our wells awaiting

a pipeline connection or capacity and/or sell oil, natural gas

or NGL production at significantly lower prices than those quoted on NYMEX or than we currently project, which would adversely affect our results of operations.
A portion of our oil, natural gas and NGL production may be subject to interruptions that could adversely affect our cash flow.
A portion of our oil, natural gas and NGL production in any region may be interrupted, or shut in, from time to time for numerous reasons, including weather conditions, accidents, loss of pipeline or gathering system access, field labor issues or strikes, or we might voluntarily curtail production in response to market conditions. If a substantial amount of our production is interrupted at the same time, it could materially adversely affect our cash flow.
Cyber-attacks targeting systems and infrastructure used by the oil and gas industry and related regulations may adversely impact our operations.operations and, if we are unable to obtain and maintain adequate protection for our data, our business may be harmed.
Our business has become increasingly dependent on digital technologies to conduct certain exploration, development and production activities. We depend on digital technology to estimate quantities of oil, natural gas and NGL reserves, process and record financial and operating data, analyze seismic and drilling information, and communicate with our customers, employees and third-party partners. We have been the subject of cyber-attacks on our internal systems and through those of third parties, but these incidents did not have a material adverse impact on our results of operations. Nevertheless, unauthorized access to our seismic data, reserves information, customer or employee data or other proprietary or commercially sensitive information could lead to data corruption, communication interruption, or other disruptions in our exploration or production operations or planned business transactions, any of which could have a material adverse impact on our results of operations. If our information technology systems cease to function properly or our cybersecurity is breached, we could suffer disruptions to our normal operations, which may include drilling, completion, production and corporate functions. A cyber-attack involving our information systems and related infrastructure, or that of our business associates, could result in supply chain disruptions that delay or prevent the transportation and marketing of our production, non-compliance leading to regulatory fines or penalties, loss or disclosure of, or damage to, our or any of our customer’s or supplier’s data or confidential information that could harm our business by damaging our reputation, subjecting us to potential financial or legal liability, and requiring us to incur significant costs, including costs to repair or restore our systems and data or to take other remedial steps.
Further, as cyber-attacks continue to evolve, we may be required to expend significant additional resources to continue to modify or enhance our protective measures or to investigate and remediate any vulnerabilities to cyber-attacks.
In connection with SSE’s recently completed bankruptcy under Chapter 11addition, new laws and regulations governing data privacy and the unauthorized disclosure of the U.S. Bankruptcy Code, our spin-off of SSE may be challenged by SSE’s former creditors.
In June 2014, we completed the spin-off of our oilfield services business into Seventy Seven Energy Inc. (“SSE”), an independent, publicly traded company. The substantial decline in oilconfidential information pose increasingly complex compliance challenges and natural gas prices since the completion of the spin-off has significantly and adversely affected SSE’s business, and in June 2016, SSE and its subsidiaries filed voluntary petitions for relief under Chapter 11 of the U.S. Bankruptcy Code. In August 2016, SSE emerged from bankruptcy. In connection with SSE’s recently completed bankruptcy, certain aspects of the spin-off could be challenged under fraudulent conveyance and transfer laws, in addition to other potential claims. Such a claim could seek to avoid transfers of assets to us or obligations incurred by SSE in connection with the spin-off and to impose other remedies, such as a judgment for the value of assets so transferred. Defending against such claims could be costly and could distract our management from other priorities. Although no assurance can be given as to the outcome of any claim, we believe we have a number of defenses to any such claimpotentially elevate costs, and any such claim would be without merit.failure to comply with these laws and regulations could result in significant penalties and legal liability. For example, the California Consumer Privacy Act (“CCPA”) was signed into law on June 28, 2018 and largely took effect on January 1, 2020. The CCPA, among other things, contains new disclosure obligations for businesses that collect personal information about California residents and enhanced consumer protections for those individuals, and provides for statutory fines for data security breaches or other CCPA violations. Meanwhile, over fifteen other states have considered privacy laws like the CCPA.
An interruption in operations at our headquarters could adversely affect our business.
Our headquarters are located in Oklahoma City, Oklahoma, an area that experiences severe weather events, including tornadoes and earthquakes. Our information systems and administrative and management processes are primarily provided to our various drilling projects and producing wells throughout the United States from this location, which could be disrupted if a catastrophic event, such as a tornado, power outage or act of terror, destroyed or severely damaged our headquarters. Any such catastrophic event could harm our ability to conduct normal operations and could adversely affect our business.
We have identified a material weakness in our internal controls. If we fail to remediate this material weakness or otherwise fail to develop, implement and maintain appropriate internal controls in future periods, our ability to report our financial condition and results of operations accurately and on a timely basis could be adversely affected.
We have identified a material weakness in our internal controls over the review of the valuation of proved oil and natural gas properties and the accuracy of impairment of oil and natural gas properties. Accordingly, based on our management’s assessment, we believe that, as of December 31, 2016, our disclosure controls and procedures were not effective. We also determined that this material weakness existed as of March 31, 2016, June 30, 2016 and September 30, 2016. The specific material weakness and our remediation efforts are described in Item 9A, Controls and Procedures. A “material weakness” is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of our annual or interim financial

statements would not be prevented or detected on a timely basis. We cannot assure you that we will adequately remediate the material weakness or that additional material weaknesses in our internal controls will not be identified in the future. Any failure to maintain or implement required new or improved controls, or any difficulties we encounter in their implementation, could result in additional material weaknesses, or could result in material misstatements in our financial statements. These misstatements could result in restatements of our financial statements, cause us to fail to meet our reporting obligations or cause investors to lose confidence in our reported financial information.
We are in the process of remediating the identified material weakness in our internal controls, but we are unable at this time to estimate when the remediation effort will be completed. If we fail to remediate this material weakness, there will continue to be an increased risk that our future financial statements could contain errors that will be undetected. Further and continued determinations that there are material weaknesses in the effectiveness of our internal controls could reduce our ability to obtain financing or could increase the cost of any financing we obtain and require additional expenditures of resources to comply with applicable requirements. For more information relating to our internal controls and disclosure controls and procedures, and the remediation plan undertaken by us, see Item 9A, Controls and Procedures.
We do not anticipate paying dividends on our common stock in the near future.
In July 2015, our Board of Directors determined to eliminate quarterly cash dividends on our common stock. Accordingly, weWe do not intend to payresume paying cash dividends on our common stock in the foreseeable future. We currently intend to retain any earnings for the future operation and development of our business, including exploration, development and acquisition activities.activities or to retire outstanding debt or preferred stock. Any future dividend payments will require approval by the Board of Directors. In addition, dividends may be restricted by the terms of our debt agreements. Additionally, our Board of Directors may determine to suspend dividend payments on our preferred stock in the future. If we fail to pay dividends on our preferred stock with respect to six or more quarterly periods (whether or not consecutive), the holders of our preferred stock, voting as a single class, will be entitled at the next regular or special meeting of shareholders to elect two additional directors of the Company. As of December 31, 2016, weWe had previously failed to pay dividends on our outstanding preferred stock with respect to four quarterly periods.periods during the fiscal year ended December 31, 2016, before resuming payment, in arrears, in the first quarter of 2017.
Certain anti-takeover and other provisions may affect your rights as a shareholder.
Our certificate of incorporation authorizes our Board of Directors to set the terms of and issue preferred stock without shareholder approval. Our Board of Directors could use the preferred stock as a means to delay, defer or prevent a takeover attempt that a shareholder might consider to be in our best interest. In addition, our revolving credit facility, and term loan facility, preferred stock and certain of our notes contain terms that may restrict our ability to enter into change of control transactions, including requirements to repay borrowings under our revolving credit facility and to offer to purchase our term loan and to offer to repurchase such notes on a change in control. These provisions, along with specified provisions of the Oklahoma General Corporation Act and our certificate of incorporation and bylaws, may discourage or impede transactions involving actual or potential changes in our control, including transactions that otherwise could involve payment of a premium over prevailing market prices to holders of our common stock.
We may fail to realize all of the anticipated benefits of the WildHorse Merger.
The success of the WildHorse Merger will depend, in part, on our ability to realize the anticipated benefits and cost savings from combining our and WildHorse’s businesses, including operational and other synergies that we believe the combined company will achieve. We achieved $250 million of cost savings in 2019 and we expect that the WildHorse Merger will provide substantial cost savings with $200 million to $280 million in projected average annual savings, totaling $1 billion to $1.5 billion by 2023, due to operational and capital efficiencies as a result of Chesapeake’s significant expertise with unconventional assets and technical and operational excellence. The anticipated benefits and cost savings of the WildHorse Merger may not be realized fully or at all, may take longer to realize than expected or could have other adverse effects that we do not currently foresee. Some of the assumptions that we have made, such as the achievement of operational cost savings, may not be realized. The integration process may, for us and WildHorse, result in the loss of key employees, the disruption of ongoing businesses or inconsistencies in standards, controls, procedures and policies. There could be potential unknown liabilities and unforeseen expenses associated with the WildHorse Merger that were not discovered in the course of performing due diligence. The integration will require significant time and focus from management following the acquisition.
The issuance of our common stock to shareholders of WildHorse as well as other stock transactions could lead to a limitation on the utilization of our loss carryforwards to reduce future taxable income.
Our ability to utilize net operating loss (NOL) carryforwards, disallowed business interest carryforwards and possibly other tax attributes to reduce future taxable income and federal income tax is subject to various limitations under Section 382 of the Internal Revenue Code of 1986, as amended (the “Code”). The utilization of such attributes may be subject to an annual limitation under Section 382 of the Code should transactions involving our equity, including issuances of our stock or the sale or exchange of our stock by certain shareholders, result in a cumulative shift of more than 50% in the beneficial ownership of our stock during any three-year testing period (an “Ownership Change”). The annual limitation is generally equal to the product of (a) the fair market value of our equity multiplied by (b) the long-term tax-exempt rate in effect for the month in which an Ownership Change occurs. If we are in a net unrealized built-in gain position at the time of an Ownership Change, then the limitation is increased by recognized built-in gains occurring within a five-year period following the Ownership Change, but only to the extent of the net unrealized built-in gain which existed at the time of the Ownership Change. However, proposed regulations issued on September 10, 2019, and on January 14, 2020, under Section 382(h) of the Code (the “Proposed Regulations”) would, if finalized in their current form, limit the potential increases to the annual limitation amount for certain built-in gains existing at the time of an Ownership Change, (unless the transition relief provisions of the Proposed Regulations are applicable), thereby significantly reducing the ability to utilize tax attributes. If we are in a net unrealized built-in loss position at the

time of an Ownership Change, then the limitation may apply to tax attributes other than just NOL carryforwards and disallowed business interest carryforwards, such as depreciable basis of tangible equipment. Some states impose similar limitations on tax attribute utilization upon experiencing an Ownership Change.
We believe that based on information currently available neither the WildHorse Merger, the exchanges of our common stock for certain outstanding senior notes that occurred during 2019 nor the exchange of our common stock for certain Cumulative Convertible Preferred Stock that also occurred during 2019 resulted in an Ownership Change. Therefore, with the exception of the NOL carryforwards and disallowed business interest carryforwards acquired upon the WildHorse Merger, we do not believe we have a limitation on the ability to utilize our carryforwards and other tax attributes under Section 382 of the Code as of December 31, 2019. However, issuances, sales or exchanges of our stock (including, potentially, relatively small transactions and transactions beyond our control) occurring after December 31, 2019, taken together with other prior transactions with respect to our stock, could trigger an Ownership Change and therefore a limitation on our ability to utilize our carryforwards and other tax attributes. Furthermore, if such an Ownership Change were to occur and the Proposed Regulations are finalized in their current form, the severity of the limitation may worsen due to the inability to consider certain recognized built-in gains in the calculation of the annual limitation amount. Any such limitation could result in a significant portion of our NOL carryforwards expiring before we would be able to utilize them to reduce taxable income in future periods. Based on the foregoing, certain NOL carryforwards, disallowed business interest carryforwards and other tax attributes may need to be written off or have a valuation allowance maintained against them which may result in a material charge to income tax expense.
ITEM 1B.Unresolved Staff Comments
Not applicable.
ITEM 2.Properties
Information regarding our properties is included in Item 1 and in the Supplementary Information included in Item 8 of Part II of this report.

ITEM 3.Legal Proceedings
Litigation and Regulatory Proceedings
The Company isWe are involved in a number of litigation and regulatory proceedings (includingincluding those described below).below. Many of these proceedings are in early stages, and many of them seek or may seek damages and penalties, the amount of which is currently indeterminate. See Note 46 of the notes to our consolidated financial statements included in Item 8 of Part II of this report for information regarding our estimation and provision for potential losses related to litigation and regulatory proceedings.
2016 Shareholder Litigation. On April 19, 2016, a shareholder lawsuit was filed in the U.S. District Court for the Western District of Oklahoma against the Company and current and former directors and officers of the Company alleging, among other things, violation of and conspiracy to violate the federal Racketeer Influenced and Corrupt Organizations Act, breach of fiduciary duties, waste of corporate assets, gross mismanagement and violations of Sections 10(b) and Rule 10b-5 of the Exchange Act related to actions allegedly taken by such persons since 2008. The lawsuit sought to assert derivative and direct claims, certification as a class action, damages, attorneys’ fees and other costs. The District Court dismissed the plaintiffs’ claims on August 30, 2016.
Regulatory and Related Proceedings. The Company has received, from the U.S. Department of Justice (DOJ) and certain state governmental agencies and authorities, subpoenas and demands for documents, information and testimony in connection with investigations into possible violations of federal and state antitrust laws relating to our purchase and lease of oil and natural gas rights in various states. The Company also has received DOJ, U.S. Postal Service and state subpoenas seeking information on the Company’s royalty payment practices. Chesapeake has engaged in discussions with the DOJ, U.S. Postal Service and state agency representatives and continues to respond to such subpoenas and demands.
In addition, the Company received a DOJ subpoena and a voluntary document request from the SEC seeking information on our accounting methodology for the acquisition and classification of oil and natural gas properties and related matters. Chesapeake has engaged in discussions with the DOJ and SEC about these matters. On October 4, 2016, a securities class action was filed in the U.S. District Court for the Western District of Oklahoma against the Company and certain current directors and officers of the Company alleging, among other things, violations of federal securities laws for purported misstatements in the Company’s SEC filings and other public disclosures regarding the Company’s accounting for the acquisition and classification of oil and natural gas properties. The lawsuit seeks certification as a class action, damages, attorneys’ fees and other costs.
Redemption of 2019 Notes. See Note 4 of the notes to our consolidated financial statements included in Item 8 of Part II of this report for a description of pending litigation regarding our redemption in May 2013 of our 6.775% Senior Notes due 2019 (the 2019 Notes).
Business Operations. Chesapeake is We are involved in various other lawsuits and disputes incidental to itsour business operations, including commercial disputes, personal injury claims, royalty claims, property damage claims and contract actions. With regard to contract actions, various mineral or leasehold owners have filed lawsuits against us seeking specific performance to require us to acquire their oil and natural gas interests and pay acreage bonus payments, damages based on breach of contract and/or, in certain cases, punitive damages based on alleged fraud. The Company has successfully defended a number of these failure-to-close cases in various courts and has settled and resolved other such cases and disputes.
Regarding royalty claims, ChesapeakeWe and other natural gas producers have been named in various lawsuits alleging royalty underpayment.underpayment of royalties and other shares of the proceeds of production. The suitslawsuits against us allege, among other things, that we used below-market prices, made improper deductions, usedutilized improper measurement techniques, and/or entered into arrangements with affiliates that resulted in underpayment of royaltiesamounts owed in connection with the production and sale of natural gas and NGL.NGL, or similar theories. These lawsuits include cases filed by individual royalty owners and putative class actions, some of which seek to certify a statewide class. The lawsuits seek compensatory, consequential, treble, and punitive damages, restitution and disgorgement of profits, declaratory and injunctive relief regarding our payment practices, pre-and post-judgment interest, and attorney’s fees and costs. Plaintiffs have varying royalty provisions in their respective leases. Oilleases, oil and gas law varies from state to state, and royalty owners and producers differ in their interpretation of the legal effect of lease provisions governing royalty calculations. The Company hasWe have resolved a number of these claims through negotiated settlements of past and future royaltiesroyalty obligations and hashave prevailed in various other lawsuits. We are currently defending numerous lawsuits seeking damages with respect to royalty underpayment of royalties or other shares of the proceeds of production in variousmultiple states where we have operated, including but not limited to, Texas, Pennsylvania, Ohio, Oklahoma, Kentucky, Louisiana and Arkansas. These lawsuits include cases filed by individual royalty owners and putative class actions, some of which seek to certify a statewide class. The Company also has received DOJ, U.S. Postal Service and state subpoenas or information requests seeking information on the Company’s royalty payment practices.

Chesapeake is defending numerous lawsuits filed by individual royalty owners alleging royalty underpayment with respect to properties in Texas. These lawsuits, organized for pre-trial proceedings with respect to the Barnett Shale and Eagle Ford Shale, respectively, generally allege that Chesapeake underpaid royalties by making improper deductions, using incorrect production volumes and similar theories. Chesapeake expects that additional lawsuits will continue to be pursued and that new plaintiffs will file other lawsuits making similar allegations.matters set forth below.
On December 9, 2015, the Commonwealth of Pennsylvania, by the Office of Attorney General, filed a lawsuit in the Bradford County Court of Common Pleas related to royalty underpayment and lease acquisition and accounting practices with respect to properties in Pennsylvania. The lawsuit, which primarily relates to the Marcellus Shale and

Utica Shale, alleges that Chesapeakewe violated the Pennsylvania Unfair Trade Practices and Consumer Protection Law (UTPCPL) by making improper deductions and entering into arrangements with affiliates that resulted in underpayment of royalties. The lawsuit includes other UTPCPL claims and antitrust claims, including that a joint exploration agreement to which Chesapeake iswe are a party established unlawful market allocation for the acquisition of leases. The lawsuit seeks statutory restitution, civil penalties and costs, as well as a temporary injunction from exploration and drilling activities in Pennsylvania until restitution, penalties and costs have been paid, and a permanent injunction from further violations of the UTPCPL. Chesapeake has filed preliminary objectionsWe intend to the most recently amended complaint.vigorously defend these claims.
Putative statewide class actions in Pennsylvania and Ohio and purported class arbitrations in Pennsylvania have been filed on behalf of royalty owners asserting various claims for damages related to alleged underpayment of royalties as a result of the Company’sour divestiture of substantially all of itsour midstream business and most of itsour gathering assets in 2012 and 2013. These cases include claims for violation of and conspiracy to violate the federal Racketeer Influenced and Corrupt Organizations Act and for an unlawful market allocation agreement for mineral rights. One of the cases includes claims ofrights, intentional interference with contractual relations, and violations of antitrust laws related to purported markets for gas mineral rights, operating rights and gas gathering sources. These lawsuits seek in aggregate compensatory, consequential, treble, and punitive damages, restitution and disgorgement of profits, declaratory and injunctive relief regarding our royalty payment practices, pre-and post-judgment interest, and attorney’s fees and costs. On December 20, 2017 and August 9, 2018, we reached tentative settlements to resolve substantially all Pennsylvania civil royalty cases for a total of approximately $36 million.
On July 24, 2018, Healthcare of Ontario Pension Plan (HOOPP) filed a demand for arbitration with the American Arbitration Association regarding HOOPP’s purchase of our interest in Chaparral Energy, Inc. stock for $215 million on January 5, 2014. HOOPP claims that we engaged in material misrepresentations and fraud, and that we violated the Exchange Act and Oklahoma Uniform Securities Act. HOOPP seeks either rescission or $215 million in monetary damages, and in either case, interest, attorney’s fees, disgorgement and punitive damages. We intend to vigorously defend these claims.
In February 2019, a putative class action lawsuit in the District Court of Dallas County, Texas was filed against FTS International, Inc. (“FTSI”), certain investment banks, FTSI’s directors including certain of our officers and certain shareholders of FTSI including us. The Company is also defending lawsuits alleginglawsuit alleges various violations of Sections 11 (with respect to certain of our officers in their capacities as directors of FTSI) and 15 (with respect to such officers and us) of the Sherman AntitrustSecurities Act of 1933 in connection with public disclosure made during the initial public offering of FTSI. The suit seeks damages in excess of $1,000,000 and state antitrust laws. In 2016, putative class action lawsuits have been filed in the United States District Court for the Western District of Oklahoma and in Oklahoma state courts, and an individual lawsuit was filed in the United States District Court of Kansas, in each case against the Companyattorneys’ fees and other defendants. The lawsuits generally allege that, since 2007 and continuing through April 2013, the defendants conspiredexpenses. We intend to rig bids and depress the market for the purchases of oil and natural gas leasehold interests and properties in the Anadarko Basin containing producing oil and natural gas wells. The lawsuits seek damages, attorney’s fees, costs and interest, as well as enjoinment from adopting practices or plans which would restrain competition in a similar manner as alleged in the lawsuits.vigorously defend these claims.
Other Matters
In April 2016, a class action lawsuit on behalf of holders of the Company’s 6.875% Senior Notes due 2020 (the 2020 Notes) and 6.125% Senior Notes due 2021 (2021 Notes) was filed in the U.S. District Court for the Southern District of New York relating to the Company’s December 2015 debt exchange, whereby the Company privately exchanged newly issued 8.00% Senior Secured Second Lien Notes due 2022 (Second Lien Notes) for certain outstanding senior unsecured notes and contingent convertible notes. The lawsuit alleges that the Company violated the Trust Indenture Act of 1939 and the implied covenant of good faith and fair dealing by benefiting themselves and a minority of noteholders who are qualified institutional buyers (QIBs). According to the lawsuit, as a result of the Company’s private debt exchange in which only QIBs (and non-U.S. persons under Regulation S) were eligible to participate, the Company unjustly enriched itself at the expense of class members by reducing indebtedness and reducing the value of the 2020 Notes and the 2022 Notes. The lawsuit seeks damages and attorney’s fees, in addition to declaratory relief that the debt exchange and the liens created for the benefit of the Second Lien Notes are null and void and that the debt exchange effectively resulted in a default under the indentures for the 2020 Notes and the 2021 Notes. In June 2016, the lawsuit was transferred to the United States District Court for the Western District of Oklahoma, and in October 2016, the Company filed a motion to dismiss for failure to state a claim. The District Court dismissed the plaintiffs’ claims on February 8, 2017.

Environmental Proceedings
Our subsidiary Chesapeake Appalachia, LLC (CALLC) is engaged in discussions with the EPA, the U.S. Army Corps of EngineersUSACE and the Pennsylvania Department of Environmental Protection (PADEP) regarding potential violations of the permitting requirements of the federal Clean Water Act,CWA, the Pennsylvania Clean Streams Law and the Pennsylvania Dam Safety and Encroachments Act in connection with the placement of dredge and fill material during construction of certain sites in Pennsylvania. CALLC identified the potential violations in connection with an internal review of its facilities siting and construction processes and voluntarily reported them to the regulatory agencies. Resolution of the matter may result in monetary sanctions of more than $100,000.$100,000.
On December 27, 2016, we received a Finding of Violation from the EPA alleging violations of the Clean Air ActCAA at a number of locations in Ohio. We have exchanged information with the EPA and are engaged in discussions aimed at resolving the allegations. Resolution of the matter may result in monetary sanctions of more than $100,000.
On We received another Finding of Violation from EPA on December 12, 2016, CALLC and the PADEP entered into a Consent Order and Agreement with respect to alleged20, 2018 alleging violations of the Pennsylvania OilCAA and Gas Act andviolations of the Pennsylvania Clean Streams LawOhio State Implementation Plan at a number of our Ohio facilities. We are in connectiondiscussions with contaminationEPA aimed at resolving the allegations. Resolution of this matter may result in the vicinitymonetary sanctions of one of CALLC’s well pads in Sullivan County, Pennsylvania. Under the agreement CALLC committed to certain ongoing monitoring and operational obligations and agreed to pay a civil penalty of $280,695.more than $100,000.
On October 14, 2016, we wereWe are named as a defendant in a putative class actionnumerous lawsuits in the U.S. District Court for the Western District of Oklahoma alleging that we and the other defendantscompanies have operated produced water disposal wellsengaged in a manneractivities that hashave caused earthquakes. The proposed class would consistThese lawsuits seek compensation for injury to real and personal property, diminution of property owners in a twenty-six county areavalue, economic losses due to business interruption, interference with the use and enjoyment of Oklahoma. The petition seeks, among other relief,property, annoyance and inconvenience, personal injury and emotional distress.  In addition, they seek the reimbursement of insurance premiums and anthe award of punitive damages, for injuryattorneys’ fees, costs, expenses and interest. We intend to real property.
On February 16, 2016, we were named as a defendant in a lawsuit brought in the U.S. District Court for the Western District of Oklahoma by the Sierra Club. The complaint alleges that we and the other defendants, all exploration and production companies, have violated the federal Resource Conservation and Recovery Act by operating produced water disposal wells in a manner that has caused earthquakes. It requests a court order requiring substantial reduction of the amounts of produced water disposed of in such manner, the creation of an earthquake prediction center, and the reinforcement of purportedly vulnerable structures that could be impacted by earthquakes.vigorously defend these claims.

ITEM 4.Mine Safety Disclosures
Not applicable.The information concerning mine safety violations and other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K (17CFR 229.104) is included in Exhibit 95.1 to this Annual Report on Form 10-K.

PART II
ITEM 5.
Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Price Range of Common Stock and Dividends
Our common stock trades on the New York Stock ExchangeNYSE under the symbol "CHK". The following table sets forth, for the periods indicated, the high and low sales prices per share of our common stock as reported by the New York Stock Exchange and the amount of cash dividends declared per share:
  Common Stock Dividend
  High Low Declared
Year Ended December 31, 2016:      
Fourth Quarter $8.20
 $5.14
 $
Third Quarter $8.15
 $4.13
 $
Second Quarter $7.59
 $3.53
 $
First Quarter $5.76
 $1.50
 $
       
Year Ended December 31, 2015:      
Fourth Quarter $9.55
 $3.56
 $
Third Quarter $11.90
 $6.01
 $
Second Quarter $16.98
 $10.94
 $
First Quarter $21.49
 $13.38
 $0.0875

Shareholders
As of February 6, 2017,19, 2020, there were approximately 2,0001,940 holders of record of our common stock and approximately 347,000308,000 beneficial owners.
In JulyDividends
We ceased paying dividends on our common stock in the 2015 our Board of Directors determinedthird quarter and do not intend to eliminate quarterlyresume paying cash dividends on our common stock.
In January 2016, we announced that we were suspending payment of dividends on each series of our outstanding convertible preferred stock. Suspension ofstock in the dividends did not constitute an event of default under our revolving credit facility or outstanding bond indentures. On February 15, 2017, we reinstated the payment of dividends on each series of our outstanding convertible preferred stock and paid our dividends in arrears.
foreseeable future. Our revolving credit facility and the certificates of designation for our term loan facilitypreferred stock contain restrictions on our ability to declare and pay cash dividends on our common or preferred stock if an event of default has occurred. The certificates of designation for our preferred stock prohibit payment of cash dividends on our common stock unless we have declared and paid (or set apart for payment) full accumulated dividends on the preferred stock.

After suspending the payment of dividends on our outstanding convertible preferred stock during fiscal year 2016, we reinstated the payment of dividends on each series of our outstanding convertible preferred stock beginning with the dividends payable in the 2017 first quarter and paid all dividends in arrears.
Unregistered Sales of Equity Securities and Use of Proceeds
The following table presents information about repurchases of our common stock during the quarter ended December 31, 2016:2019:
Period 
Total
Number
of Shares
Purchased(a)
 
Average
Price
Paid
Per
Share
(a)
 
Total Number
of Shares
Purchased as
Part of
Publicly
Announced
Plans or
Programs
 
Maximum
Approximate
Dollar Value
of Shares
That May Yet
Be Purchased
Under
the Plans
or Programs(b)
        ($ in millions)
October 1, 2016 through October 31, 2016 5,693
 $6.12
 
 $1,000
November 1, 2016 through November 30, 2016 2,026
 $6.80
 
 $1,000
December 1, 2016 through December 31, 2016 837
 $7.06
 
 $1,000
Total 8,556
 $6.37
 
  
Period 
Total
Number
of Shares
Purchased(a)
 
Average
Price
Paid
Per
Share
(a)
 
Total Number
of Shares
Purchased as
Part of
Publicly
Announced
Plans or
Programs
 
Maximum
Approximate
Dollar Value
of Shares
That May Yet
Be Purchased
Under
the Plans
or Programs
        ($ in millions)
October 1, 2019 through October 31, 2019 44,323
 $1.44
 
 $
November 1, 2019 through November 30, 2019 
 $
 
 $
December 1, 2019 through December 31, 2019 
 $
 
 $
Total 44,323
 $
 
  

(a)Reflects the surrender to the Company of shares of common stock to pay withholding taxes in connection with the vesting of employee restricted stock. Also includesIncludes shares of common stock purchased on behalf of Chesapeake’sour deferred compensation plan related to participant deferrals and Company matching contributions.plan.
(b)In December 2014, the Company’s Board of Directors authorized the repurchase of up to $1 billion in value of its common stock from time to time. The repurchase program does not have an expiration date. As of December 31, 2016, no repurchases had been made under the program.



ITEM 6.
Selected Financial Data
The following table sets forth selected consolidated financial data of Chesapeake as of and for the years ended December 31, 2019, 2018, 2017, 2016 2015, 2014, 2013 and 2012. The data are derived from our audited consolidated financial statements, revised to reflect the reclassification discussed below. Beginning in the 2016 first quarter, we have reclassified our presentation of debt issuance costs related to term debt to be presented in the balance sheet as a direct reduction from the associated debt liability.2015. The table below should be read in conjunction with Management's Discussion and Analysis of Financial Condition and Results of Operations and our consolidated financial statements, including the notes thereto, appearing in Items 7 and 8, respectively, of this report. Financial information for prior periods has been recast to reflect retrospective application of the successful efforts method of accounting. See Notes 1 and 2 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the change in accounting principle.
 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2013 2012 2019 2018 2017 2016 2015
 ($ in millions, except per share data) ($ in millions, except per share data)
STATEMENT OF OPERATIONS DATA:                    
Total revenues $7,872
 $12,764
 $23,125
 $19,080
 $13,422
 $8,595
 $10,030
 $10,039
 $8,705
 $13,794
Net income (loss) available to common stockholders(a)
 $(4,926) $(14,856) $1,273
 $474
 $(940) $(416) $133
 $(631) $(4,018) $(11,383)
                    
EARNINGS (LOSS) PER COMMON SHARE:                    
Basic $(6.45) $(22.43) $1.93
 $0.73
 $(1.46) $(0.25) $0.15
 $(0.70) $(5.26) $(17.18)
Diluted $(6.45) $(22.43) $1.87
 $0.73
 $(1.46) $(0.25) $0.15
 $(0.70) $(5.26) $(17.18)
                    
CASH DIVIDEND DECLARED PER COMMON SHARE $
 $0.0875
 $0.35
 $0.35
 $0.35
 $
 $
 $
 $
 $0.0875
                    
BALANCE SHEET DATA (AT END OF PERIOD):                    
Total assets $13,028
 $17,314
 $40,655
 $41,663
 $41,469
 $16,193
 $12,735
 $14,925
 $17,048
 $21,432
Long-term debt, net of current maturities $9,938
 $10,311
 $11,058
 $12,767
 $12,015
 $9,073
 $7,341
 $9,921
 $9,938
 $10,311
Total equity (deficit) $(1,203) $2,397
 $18,205
 $18,140
 $17,896
Total equity $4,401
 $2,133
 $1,943
 $2,565
 $5,256

(a)Includes $2.564 billion, $18.238 billion$11 million, $131 million, $814 million, $563 million and $3.315$11.590 billion of full cost ceiling test write-downs on ourimpairments of oil and natural gas properties and other fixed assets for the years ended December 31, 2019, 2018, 2017, 2016 and 2015, and December 2012, respectively. In 2014 and 2013, we did not have any ceiling test impairments for our oil and natural gas properties.


ITEM 7.
Management’s Discussion and Analysis of Financial Condition and Results of Operations
Financial DataOverview
The following table sets forthdiscussion and analysis presents management’s perspective of our business, financial condition and overall performance. This information is intended to provide investors with an understanding of our past performance, current financial condition and outlook for the future and should be read in conjunction with Item 8 of this report.
Recent highlights include the following:
acquired WildHorse, an oil and gas company with operations in the Eagle Ford Shale and Austin Chalk formations in southeast Texas, for approximately 717.4 million shares of our common stock and $381 million in cash, and the assumption of WildHorse’s debt of $1.4 billion as of February 1, 2019. We anticipate the acquisition to materially increase our oil production and enhance our oil production mix as well as significantly reduce costs due to operational synergies that we believe the combined company will achieve. We achieved $250 million of cost savings in 2019 and we expect that the WildHorse Merger will provide substantial cost savings with $200 million to $280 million in projected average annual savings, totaling $1 billion to $1.5 billion by 2023, due to operational and capital efficiencies as a result of Chesapeake’s significant expertise with unconventional assets and technical and operational excellence;
entered into a secured 4.5-year term loan facility for $1.5 billion to finance a tender offer for unsecured notes issued by Brazos Valley Longhorn and Brazos Valley Longhorn Finance Corp., each a wholly owned subsidiary of Chesapeake, and to fund the retirement of Brazos Valley Longhorn’s secured revolving credit facility;
exchanged new 11.5% Senior Secured Second Lien Notes due 2025 for 8.00% Senior Notes due 2027, 8.00% Senior Notes due 2026, 8.00% Senior Notes due 2025, 7.50% Senior Notes due 2026 and 7.00% Senior Notes due 2024. Also, we issued an additional $120 million of 11.5% Senior Secured Second Lien Notes due 2025 pursuant to a private offering, at 89.75% of par. These transactions resulted in the removal of approximately $900 million principal amount of debt from the company’s balance sheet.
privately negotiated exchanges of approximately $507 million principal amount of our outstanding senior notes for 235,563,519 shares of common stock and $186 million principal amount of our outstanding convertible senior notes for 73,389,094 shares of common stock, reducing annual interest payments;
exchanged 40,000 shares of our 5.75% (Series A) Cumulative Convertible Preferred Stock for 10,367,950 shares of common stock, reducing annual preferred stock dividend payments;
extended our debt maturity profile by privately exchanging approximately $884 million aggregate principal amount of our existing 6.625% Senior Notes due 2020, 6.875% Senior Notes due 2020, 6.125% Senior Notes due 2021 and 5.375% Senior Notes due 2021 for approximately $919 million aggregate principal amount of new 8.00% Senior Notes due 2026; and
improved our cost structure by reducing combined production, gathering, processing and transportation and general and administrative expenses by approximately $0.79 per boe, or $290 million in 2019 compared to 2018, or 13%. The primary driver in the reduction is lower gathering, processing and transportation expenses due to certain 2018 divestitures and recently renegotiated contracts.
In 2020 and beyond, our focus remains concentrated on four long-term strategic priorities:
reduce total leverage to achieve long-term net debt/EBITDAX of 2x;
achieve sustained free cash flow generation;
improve margins through financial discipline and operating efficiencies; and
maintain industry leading environmental and safety performance.
Natural gas prices are at their lowest levels since the first half of 2016. Accordingly, a majority of our 2020 capital will be allocated to our higher margin oil assets with total expected 2020 capital expenditures being approximately 30% lower than 2019 while maintaining flat oil production. We plan to seek the lowest capital program possible to reach and sustain positive cash flow.

Business and Industry Outlook
Over the past decade, the landscape of energy production has changed dramatically in the United States. Domestic energy production capabilities have increased the nation’s supply of both crude oil and natural gas, primarily driven by advances in technology, horizontal drilling and hydraulic fracture stimulation techniques. As a result of this increase in domestic supply of crude oil and natural gas, commodity prices for these products are meaningfully lower than they were a decade ago, and may remain volatile for the foreseeable future.
We believe the prolonged lower commodity price environment has fundamentally changed the expectations of capital markets, resulting in new capital being both more difficult and more expensive to access. Currently, capital markets are no longer willing to fund organic growth. We believe our strategic priorities are consistent with these expectations as we look to continue to increase our cash flow and expand our margins by focusing on high-return drilling locations and reduced capital and operating costs using cash generated from operations and asset sales. We look to continue to reduce debt on our balance sheet with asset sales and liability management activities similar to those completed in 2019.
Change in Accounting Principle
During the first quarter of 2019, we changed our method of accounting for our oil and natural gas exploration and development activities from the full cost method to the successful efforts method of accounting. Financial information regardingfor all periods presented has been recast to reflect retrospective application of the successful efforts method of accounting. See Notes 1 and 2 of the notes to our production volumes,consolidated financial statements included in Item 8 of this report for further discussion of the change in accounting principle.
Liquidity and Capital Resources
Liquidity Overview
Our ability to grow, make capital expenditures and service our debt depends primarily upon the prices we receive for the oil, natural gas and NGL sales, average saleswe sell. Substantial expenditures are required to replace reserves, sustain production and fund our business plans. Historically, oil and natural gas prices received,have been volatile and may be subject to wide fluctuations in the future. A decline in oil, natural gas and NGL prices could negatively affect the amount of cash we generate and have available for capital expenditures and debt service and could have a material impact on our financial position, results of operations, cash flows and on the quantities of reserves that we can economically produce or provide as collateral to our credit facility lenders. Other risks and uncertainties that could affect our liquidity include, but are not limited to, counterparty credit risk for our receivables, access to capital markets, regulatory risks and our ability to meet financial covenants in our financing agreements.
Based on our cash balance, forecasted cash flows from operating activities and availability under our revolving credit facilities, we expect to be able to fund our planned capital expenditures, meet our debt service requirements and fund our other operating incomecommitments and expensesobligations for the periods indicated:next 12 months.
As of December 31, 2019, we had a cash balance of $6 million compared to $4 million as of December 31, 2018, and a net working capital deficit of $1.141 billion as of December 31, 2019, compared to a net working capital deficit of $1.289 billion as of December 31, 2018. As of December 31, 2019, our working capital deficit includes $385 million of debt due in the next 12 months. Our total principal debt as of December 31, 2019 was $8.916 billion compared to $8.168 billion as of December 31, 2018. As of December 31, 2019, we had $1.351 billion of borrowing capacity available under our revolving credit facility, with outstanding borrowings of $1.590 billion and $59 million utilized for various letters of credit. See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of our debt obligations, including principal and carrying amounts of our notes.
We closely monitor the amounts and timing of our sources and uses of funds, particularly as they affect our ability to maintain compliance with the financial covenants of our revolving credit facilities. Furthermore, our ability to generate operating cash flow in the current commodity price environment, sell assets, access capital markets or take any other action to improve our liquidity and manage our debt is subject to the risks discussed above and the other risks and uncertainties that exist in our industry, some of which we may not be able to anticipate at this time or control.

Derivative and Hedging Activities
Our results of operations and cash flows are impacted by changes in market prices for oil, natural gas and NGL. To mitigate a portion of our exposure to adverse market price changes, we enter into various derivative instruments. Our oil, natural gas and NGL derivative activities, when combined with our sales of oil, natural gas and NGL, allow us to better predict the total revenue we expect to receive.
As of February 19, 2020, including January and February derivative contracts that have settled, approximately 70% of our 2020 forecasted oil, natural gas and NGL production revenue was hedged. We had approximately 76% downside oil price protection through swaps and collars at an average price of $59.90 per bbl. We had 39% downside gas price protection through swaps at $2.76 per mcf and 14% under put spread arrangements based on an average bought put NYMEX price of $2.05 per mcf and exposure below an average sold put NYMEX price of $1.80 per mcf.
  Years Ended December 31,
  2016 2015 2014
Net Production:      
Oil (mmbbl) 33
 42
 42
Natural gas (bcf) 1,049
 1,070
 1,095
NGL (mmbbl) 24
 28
 33
Oil equivalent (mmboe)(a)
 233
 248
 258
       
Oil, Natural Gas and NGL Sales ($ in millions):      
Oil sales $1,351
 $1,904
 $3,778
Oil derivatives – realized gains (losses)(b)
 97
 880
 (185)
Oil derivatives – unrealized gains (losses)(b)
 (318) (536) 859
Total oil sales 1,130
 2,248
 4,452
Natural gas sales 2,155
 2,470
 4,535
Natural gas derivatives – realized gains (losses)(b)
 151
 437
 (191)
Natural gas derivatives – unrealized gains (losses)(b)
 (500) (157) 535
Total natural gas sales 1,806
 2,750
 4,879
NGL sales 360
 393
 1,023
NGL derivatives – realized gains (losses)(b)
 (8) 
 
NGL derivatives – unrealized gains (losses)(b)
 
 
 
Total NGL sales 352
 393
 1,023
Total oil, natural gas and NGL sales $3,288
 $5,391
 $10,354
       
Average Sales Price
(excluding gains (losses) on derivatives):
      
Oil ($ per bbl) $40.65
 $45.77
 $89.41
Natural gas ($ per mcf) $2.05
 $2.31
 $4.14
NGL ($ per bbl) $14.76
 $14.06
 $30.95
Oil equivalent ($ per boe) $16.63
 $19.23
 $36.21
       
Average Sales Price
(including realized gains (losses) on derivatives):
      
Oil ($ per bbl) $43.58
 $66.91
 $85.04
Natural gas ($ per mcf) $2.20
 $2.72
 $3.97
NGL ($ per bbl) $14.43
 $14.06
 $30.95
Oil equivalent ($ per boe) $17.66
 $24.54
 $34.74
       
Other Operating Income ($ in millions):      
Marketing, gathering and compression net margin(c)(d)
 $(194) $243
 $(11)
Oilfield services net margin $
 $
 $115
       

  Years Ended December 31,
  2016 2015 2014
Expenses ($ per boe):      
Oil, natural gas and NGL production $3.05
 $4.22
 $4.69
Oil, natural gas and NGL gathering, processing and transportation $7.98
 $8.55
 $8.43
Production taxes $0.32
 $0.40
 $0.90
General and administrative(e)
 $1.03
 $0.95
 $1.25
Oil, natural gas and NGL depreciation, depletion and amortization $4.31
 $8.47
 $10.41
Depreciation and amortization of other assets $0.45
 $0.53
 $0.90
Interest expense(f)
 $1.18
 $1.30
 $0.63
       
Interest Expense ($ in millions):      
Interest expense $286
 $329
 $173
Interest rate derivatives – realized (gains) losses(g)
 (11) (6) (12)
Interest rate derivatives – unrealized (gains) losses(g)
 21
 (6) (72)
Total interest expense $296
 $317
 $89
Oil Derivatives(a)
Year Type of Derivative Instrument Notional Volume Average NYMEX Price
    (mmbbls)  
2020 Swaps 30
 $59.59
2020 Two-way collars 2
 $65.00/$83.25
2020 Basis protection swaps 12
 $2.57
2021 Calls 4
 $61.58
2022 Calls 4
 $61.58
       
Natural Gas Derivatives(a)
Year Type of Derivative Instrument Notional Volume Average NYMEX Price
    (bcf)  
2020 Swaps 265
 $2.76
2020 Calls 22
 $12.00
2020 Basis protection swaps 53
 $0.03
2020 
Put spread(b)
 94
 $1.80/$2.05
2021 Call swaptions 15
 $2.80
2021 Calls 96
 $2.75
2022 Call swaption 15
 $2.80

(a)Oil equivalent is based on six mcf of natural gas to one barrel of oil or one barrel of NGL. This ratio reflects an energy content equivalencyIncludes amounts settled in January and not a price or revenue equivalency.February 2020.
(b)Realized gains (losses) include
Put spread: These instruments contain a fixed floor price (bought put) and sub floor price (sold put). If the following items: (i) settlementsmarket price exceeds the bought put strike, we receive the market price. If the market price is between the bought put and accruals for settlements of undesignated derivatives related to current period production revenues, (ii) prior period settlements for option premiumssold put strike prices, we receive the bought put price. If the market price falls below the subfloor, we receive the market price plus the difference between the sold put and for early-terminated derivatives originally scheduled to settle against current period production revenues, and (iii) gains (losses) related to de-designated cash flow hedges originally designated to settle against current period production revenues. Unrealized gains (losses) include the change in fair value of open derivatives scheduled to settle against future period production revenues (including current period settlements for option premiums and early terminated derivatives) offset by amounts reclassified as realized gains (losses) during the period.bought put.
See Note 14 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of derivatives and hedging activities.

Debt
We are committed to reducing total leverage to achieve long-term net debt/EBITDAX of 2x. To accomplish this goal, we intend to allocate our capital expenditures to projects we believe offer the highest return and value regardless of the commodity price environment, to deploy leading drilling and completion technology throughout our portfolio, and to take advantage of acquisition and divestiture opportunities to strengthen our cost structure and our portfolio. Increasing our margins means not only increasing our absolute level of cash flows from operations, but also increasing our cash flows from operations generated per barrel of oil equivalent production. We continue to seek opportunities to reduce cash costs (production, gathering, processing and transportation and general and administrative), improve our production volumes from existing wells, and achieve additional operating and capital efficiencies with a focus on growing our oil volumes.
We may continue to use a combination of cash, borrowings and issuances of our common stock or other securities and the proceeds from asset sales to retire our outstanding debt or preferred stock through privately negotiated transactions, open market repurchases, redemptions, exchanges, tender offers or otherwise, but we are under no obligation to do so.
Revolving Credit Facility
Our revolving credit facility matures in September 2023 and the current aggregate commitment of the lenders and borrowing base under the facility is $3.0 billion. The revolving credit facility provides for an accordion feature, pursuant to which the aggregate commitments thereunder may be increased to up to $4.0 billion from time to time, subject to agreement of the participating lenders and certain other customary conditions. Scheduled borrowing base redeterminations will continue to occur semiannually. Our next borrowing base redetermination is scheduled for the second quarter of 2020. Borrowings under the facility bear interest at a variable rate. As of December 31, 2019, we had outstanding borrowings of $1.590 billion under our revolving credit facility and had used $59 million for various letters of credit. See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the terms of our revolving credit facility. As of December 31, 2019, we were in compliance with all applicable financial covenants under the credit agreement. As of December 31, 2019, our leverage ratio was approximately 3.43 to 1, our first lien leverage ratio was approximately 1.21 to 1 and our fixed charge coverage ratio was approximately 3.64 to 1.
Term Loan
In December 2019, we entered into a secured 4.5-year term loan facility in an aggregate principal amount of $1.5 billion for net proceeds of approximately $1.455 billion. Our obligations under the new facility are unconditionally guaranteed on a joint and several basis by the same subsidiaries that guarantee our revolving credit facility and second lien notes (including BVL and its subsidiaries) and are secured by first-priority liens on the same collateral securing our revolving credit facility (with a position in the collateral proceeds waterfall junior to the revolving credit facility). The term loan bears interest at a rate of London Interbank Offered Rate (LIBOR) plus 8.00% per annum, subject to a 1.00% LIBOR floor, or the Alternative Base Rate (ABR) plus 7.00% per annum, subject to a 2.00% ABR floor, at our option. The loan was made at 98% of par. We used the net proceeds to finance tender offers for our unsecured BVL senior notes and to fund the retirement of BVL’s secured revolving credit facility. The term loan matures in June 2024 and voluntary prepayments are subject to a make-whole premium prior to the 18-month anniversary of the closing of the term loan, a premium to par of 5.00% from the 18-month anniversary until but excluding the 30-month anniversary, a premium to par of 2.5% from the 30-month anniversary until but excluding the 42-month anniversary and at par beginning on the 42-month anniversary. The term loan may be subject to mandatory prepayments and offers to prepay with net cash proceeds of certain issuances of debt, certain asset sales and other dispositions of collateral and upon a change of control. See Note 5 of the notes to our consolidated financial statements included in Item 8 for further discussion of the term loan facility.

Contractual Obligations and Off-Balance Sheet Arrangements
From time to time, we enter into arrangements and transactions that can give rise to contractual obligations and off-balance sheet commitments. The table below summarizes our contractual cash obligations for both recorded obligations and certain off-balance sheet arrangements and commitments as of December 31, 2019:
  Payments Due By Period
  Total 2020 2021-2022 2023-2024 2025 and Beyond
  ($ in millions)
Long-term debt:          
Principal(a)
 $8,916
 $385
 $583
 $3,888
 $4,060
Interest 3,314
 705
 1,338
 1,101
 170
Finance lease obligation(b)
 20
 10
 10
 
 
Operating lease obligations(c)
 28
 10
 9
 4
 5
Operating commitments(d)
 8,056
 1,143
 1,955
 1,479
 3,479
Standby letters of credit 59
 59
 
 
 
VPP obligation(e)
 64
 55
 9
 
 
Other 13
 3
 8
 2
 
Total contractual cash obligations(f)
 $20,470
 $2,370
 $3,912
 $6,474
 $7,714

(c)(a)
Includes revenue and operating costs. See Depreciation and Amortization of Other Assets under Results of Operations for details of the depreciation and amortization associated with our marketing, gathering and compression segment.
(d)For the years ended December 31, 2016 and 2015, we recorded unrealized losses of $297 million and unrealized gains of $296 million, respectively, on the fair value of our supply contract derivative. Additionally, in 2016, we sold the long-term natural gas supply contract to a third party for cash proceeds of $146 million. See Note 115 of the notes to our consolidated financial statements included in Item 8 of this report for discussion relateda description of our long-term debt.
(b)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this instrument.report for a description of our finance lease obligation.
(c)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our operating lease obligations.
(d)
See Note 6 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our gathering, processing and transportation agreements and service contract commitments.
(e)Excludes restructuring and other termination costs.
(f)Includes the effects of realized (gains) losses from interest rate derivatives, excludes the effects of unrealized (gains) losses from interest rate derivatives and is shown net of amounts capitalized.
(g)Realized (gains) losses include interest rate derivative settlements related to current period interest and the effect of (gains) losses on early-terminated trades. Settlements of early-terminated trades are reflected in realized (gains) losses over the original life
See Note 7 of the hedged item. Unrealized (gains) losses include changesnotes to our consolidated financial statements included in the fair valueItem 8 of open interest rate derivatives offset by amounts reclassified to realized (gains) losses during the period.this report for a discussion of our VPP obligation.

Overview
For an overview of our business(f) This table does not include derivative liabilities or the estimated discounted liability for future dismantlement, abandonment and strategy, please see Our Business and Business Strategy in Item 1restoration costs of this report.
Operating Results
Our 2016 production of 233 mmboe consisted of 33 mmbbls of oil (14% on an oil equivalent basis), 1.0 tcf of natural gas (75% on an oil equivalent basis), and 24 mmbbls of NGL (11% on an oil equivalent basis). Our daily production for 2016 averaged approximately 635 mboe, a decrease of 6% from 2015. Compared to 2015, average daily oil production decreased by 20% or approximately 23 mbbls per day; average daily natural gas production decreased by 2%, or approximately 64 mmcf per day; and average daily NGL production decreased by 13%, or approximately 10 mbbls per day. Our oil and NGL production decreased primarily as a result of the sale of certain of our Mid-Continent assets in 2016 and 2015 as well as a significant reduction in drilling activity. Adjusted for asset sales, our total daily production was comparable between 2016 and 2015. Our oil, natural gas and NGL revenues (excluding gains or losses on oil and natural gas derivatives) decreased approximately $901 millionproperties. See Notes 14 and 22, respectively, of the notes to $3.866 billionour consolidated financial statements included in 2016 compared to $4.767 billion in 2015, primarily due to significant decreases in the prices receivedItem 8 of this report for oilmore information on our derivatives and natural gas sold in addition to lower oil, natural gas and NGL volumes sold. See Results of Operations below for additional details.asset retirement obligations.
Liquidity and Capital ExpendituresResources
Liquidity Overview
Our drilling and completionability to grow, make capital expenditures during 2016 were approximately $1.316 billion and capital expendituresservice our debt depends primarily upon the prices we receive for the acquisition of unproved properties, geologicaloil, natural gas and geophysical costsNGL we sell. Substantial expenditures are required to replace reserves, sustain production and other property and equipment were approximately $130 million, for a total of approximately $1.446 billion. In 2016, we operated an average of 10 rigs, a decrease of 18 rigs, or 64%, compared to 2015. As a result of lower drilling and completion activity, drilling and completion expenditures decreased approximately $1.7 billion in 2016 compared to 2015. The level of capital expenditures for the acquisition of unproved properties, geological and geophysical costs and other property and equipment decreased approximately $101 million compared to 2015.
Our capitalized interest was approximately $251 million and $424 million in 2016 and 2015, respectively. The decrease in capitalized interest resulted from a lower average balance offund our unprovedbusiness plans. Historically, oil and natural gas properties,prices have been volatile and may be subject to wide fluctuations in the primary assetfuture. A decline in oil, natural gas and NGL prices could negatively affect the amount of cash we generate and have available for capital expenditures and debt service and could have a material impact on which interest is capitalized. Including capitalized interest, totalour financial position, results of operations, cash flows and on the quantities of reserves that we can economically produce or provide as collateral to our credit facility lenders. Other risks and uncertainties that could affect our liquidity include, but are not limited to, counterparty credit risk for our receivables, access to capital investments were approximately $1.7 billionmarkets, regulatory risks and our ability to meet financial covenants in 2016 compared to $3.6 billion for 2015, a decrease of 53%.our financing agreements.
Based on planned activity levels for 2017,our cash balance, forecasted cash flows from operating activities and availability under our revolving credit facilities, we project that 2017 capital expenditures for drilling and completions, leasehold, geological and geophysical and other property and equipment willexpect to be $1.9 - $2.5 billion, inclusive of capitalized interest, as compared to $1.7 billion of capital expenditures in 2016. See Liquidity and Capital Resources for additional information on how we planable to fund our planned capital budget.expenditures, meet our debt service requirements and fund our other commitments and obligations for the next 12 months.
As of December 31, 2019, we had a cash balance of $6 million compared to $4 million as of December 31, 2018, and a net working capital deficit of $1.141 billion as of December 31, 2019, compared to a net working capital deficit of $1.289 billion as of December 31, 2018. As of December 31, 2019, our working capital deficit includes $385 million of debt due in the next 12 months. Our total principal debt as of December 31, 2019 was $8.916 billion compared to $8.168 billion as of December 31, 2018. As of December 31, 2019, we had $1.351 billion of borrowing capacity available under our revolving credit facility, with outstanding borrowings of $1.590 billion and $59 million utilized for various letters of credit. See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of our debt obligations, including principal and carrying amounts of our notes.
We closely monitor the amounts and timing of our sources and uses of funds, particularly as they affect our ability to maintain compliance with the financial covenants of our revolving credit facilities. Furthermore, our ability to generate operating cash flow in the current commodity price environment, sell assets, access capital markets or take any other action to improve our liquidity and manage our debt is subject to the risks discussed above and the other risks and uncertainties that exist in our industry, some of which we may not be able to anticipate at this time or control.
Strategic Developments
Derivative and Hedging Activities
Our results of operations and cash flows are impacted by changes in market prices for oil, natural gas and NGL. To mitigate a portion of our exposure to adverse market price changes, we enter into various derivative instruments. Our oil, natural gas and NGL derivative activities, when combined with our sales of oil, natural gas and NGL, allow us to better predict the total revenue we expect to receive.
As of February 19, 2020, including January and February derivative contracts that have settled, approximately 70% of our 2020 forecasted oil, natural gas and NGL production revenue was hedged. We had approximately 76% downside oil price protection through swaps and collars at an average price of $59.90 per bbl. We had 39% downside gas price protection through swaps at $2.76 per mcf and 14% under put spread arrangements based on an average bought put NYMEX price of $2.05 per mcf and exposure below an average sold put NYMEX price of $1.80 per mcf.
Oil Derivatives(a)
Year Type of Derivative Instrument Notional Volume Average NYMEX Price
    (mmbbls)  
2020 Swaps 30
 $59.59
2020 Two-way collars 2
 $65.00/$83.25
2020 Basis protection swaps 12
 $2.57
2021 Calls 4
 $61.58
2022 Calls 4
 $61.58
       
Natural Gas Derivatives(a)
Year Type of Derivative Instrument Notional Volume Average NYMEX Price
    (bcf)  
2020 Swaps 265
 $2.76
2020 Calls 22
 $12.00
2020 Basis protection swaps 53
 $0.03
2020 
Put spread(b)
 94
 $1.80/$2.05
2021 Call swaptions 15
 $2.80
2021 Calls 96
 $2.75
2022 Call swaption 15
 $2.80

(a)Includes amounts settled in January and February 2020.
(b)
Put spread: These instruments contain a fixed floor price (bought put) and sub floor price (sold put). If the market price exceeds the bought put strike, we receive the market price. If the market price is between the bought put and sold put strike prices, we receive the bought put price. If the market price falls below the subfloor, we receive the market price plus the difference between the sold put and bought put.
See Note 14 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of derivatives and hedging activities.

Debt Issuances
In December 2016,We are committed to reducing total leverage to achieve long-term net debt/EBITDAX of 2x. To accomplish this goal, we issued inintend to allocate our capital expenditures to projects we believe offer the highest return and value regardless of the commodity price environment, to deploy leading drilling and completion technology throughout our portfolio, and to take advantage of acquisition and divestiture opportunities to strengthen our cost structure and our portfolio. Increasing our margins means not only increasing our absolute level of cash flows from operations, but also increasing our cash flows from operations generated per barrel of oil equivalent production. We continue to seek opportunities to reduce cash costs (production, gathering, processing and transportation and general and administrative), improve our production volumes from existing wells, and achieve additional operating and capital efficiencies with a private placement $1.0 billion principal amount of unsecured 8.00% Senior Notes due 2025. In October 2016, we issued in a private placement $1.25 billion principal amount of unsecured 5.5% Convertible Senior Notes due 2026, which are convertible, under certain specified circumstances, into cash, common stock orfocus on growing our oil volumes.
We may continue to use a combination of cash, borrowings and common stock, at our election. In August 2016, we entered into a secured five-year term loan facility in aggregate principal amount of $1.5 billion. We used the net proceeds from these issuances primarily to purchase and retire senior notes and contingent convertible senior notes as described below, with a focus on retiring debt scheduled to mature or that could be put to us in 2017 and 2018.
Debt Retirements
In January 2017, we repurchased in the open market approximately $221 million principal amount of our outstanding debt scheduled to mature or that could be put to us in 2018 and 2020 for $224 million. On January 20, 2017, we redeemed our $133 million principal amount of outstanding 6.5% Senior Notes due 2017. On January 6, 2017, we purchased and retired approximately $287 million principal amount of our outstanding contingent convertible senior notes and $2 million principal amount of our outstanding senior notes for an aggregate of $286 million pursuant to tender offers.

In 2016, we used the proceeds from our senior notes, convertible notes and term loan issuances to purchase and retire $2.035 billion aggregate principal amount of our outstanding senior notes and $849 million aggregate principal amount of our outstanding contingent convertible senior notes for an aggregate purchase price of $2.734 billion pursuant to tender offers, open market repurchases and repayment upon maturity. Additionally, we privately negotiated exchanges of (i) approximately $290 million principal amount of our outstanding senior notes for 53,923,925 shares of our common stock or other securities and (ii) approximately $287 million principal amount ofthe proceeds from asset sales to retire our outstanding contingent convertible senior notes for 55,427,782 shares of our common stock.debt or preferred stock through privately negotiated transactions, open market repurchases, redemptions, exchanges, tender offers or otherwise, but we are under no obligation to do so.
Revolving Credit Facility Amendment
In April 2016, we further amended our senior securedOur revolving credit facility agreement. Pursuant tomatures in September 2023 and the amendment, ourcurrent aggregate commitment of the lenders and borrowing base was reaffirmed inunder the amount offacility is $3.0 billion. The revolving credit facility provides for an accordion feature, pursuant to which the aggregate commitments thereunder may be increased to up to $4.0 billion (as a resultfrom time to time, subject to agreement of subsequent asset sales, ourthe participating lenders and certain other customary conditions. Scheduled borrowing base was reducedredeterminations will continue to $3.8 billion) and ouroccur semiannually. Our next scheduled borrowing base redetermination date was postponed until June 15, 2017, withis scheduled for the consenting lenders agreeing not to exercise their interim redetermination right prior to that date. The amendment also modifiedsecond quarter of 2020. Borrowings under the facility bear interest at a variable rate. As of December 31, 2019, we had outstanding borrowings of $1.590 billion under our revolving credit agreement to providefacility and had used $59 million for among other things, (i) the suspension or modificationvarious letters of certain financial covenants, and (ii) the granting of liens and security interests on substantially all of our assets, including mortgages encumbering 90% of our proved oil and gas properties that constitute borrowing base properties, all derivative contracts and personal property, subject to certain agreed-upon carve outs.credit. See Note 35 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the terms of our revolving credit facility. As of December 31, 2019, we were in compliance with all applicable financial covenants under the credit agreement. As of December 31, 2019, our leverage ratio was approximately 3.43 to 1, our first lien leverage ratio was approximately 1.21 to 1 and our fixed charge coverage ratio was approximately 3.64 to 1.
Preferred Stock Exchanges and ConversionsTerm Loan
In January 2017,December 2019, we completed private exchanges ofentered into a secured 4.5-year term loan facility in an aggregate principal amount of approximately 10.0 million shares of our common stock for (i) 150,948 shares of 5.00% Cumulative Convertible Preferred Stock (Series 2005B), (ii) 72,600 shares of 5.75% Cumulative Convertible Preferred Stock and (iii) 12,500 shares of 5.75% Cumulative Convertible Preferred Stock (Series A). The preferred stock exchanged represents approximately $100 million of liquidation value.
In October and November 2016, we completed private exchanges of an aggregate of approximately 119.2 million shares of our common stock for (i) 134,000 shares of 5.00% Cumulative Convertible Preferred Stock (Series 2005B), (ii) 629,271 shares of 5.75% Cumulative Convertible Preferred Stock and (iii) 622,936 shares of 5.75% Cumulative Convertible Preferred Stock (Series A). The preferred stock exchanged represents approximately $1.3$1.5 billion of liquidation value.
In February and March 2016, certain preferred shareholders converted (i) 24,601 shares of 5.75% Cumulative Convertible Preferred Stock and (ii) 1,201 shares of 5.75% Cumulative Convertible Preferred Stock (Series A) into an aggregate of approximately 1 million shares of our common stock. The preferred stock converted represents approximately $26 million of liquidation value.
In January 2016, we suspended dividend payments on our convertible preferred stock to provide additional liquidity in the depressed commodity environment that existed throughout 2016. On February 15, 2017, we reinstated the payment of dividends on each series of our outstanding convertible preferred stock and paid our dividends in arrears. The preferred stock exchanges and conversions completed in 2016 and 2017 eliminated approximately $80 million of annual dividend obligations.
Divestitures
During 2016 and into 2017, we sold oil and natural gas properties and related assets for net proceeds of approximately $2.3 billion, providing additional liquidity for debt reduction$1.455 billion. Our obligations under the new facility are unconditionally guaranteed on a joint and operations. In addition, we purchased fiveseveral basis by the same subsidiaries that guarantee our revolving credit facility and second lien notes (including BVL and its subsidiaries) and are secured by first-priority liens on the same collateral securing our revolving credit facility (with a position in the collateral proceeds waterfall junior to the revolving credit facility). The term loan bears interest at a rate of our VPP transactions for approximately $386 million, removing all future obligations we have with those VPPs.
In February 2017, we sold a portion of our acreage and producing properties in our Haynesville Shale operating area in northern Louisiana for approximately $465 million,London Interbank Offered Rate (LIBOR) plus 8.00% per annum, subject to certain customary post-closing adjustments. Included ina 1.00% LIBOR floor, or the sale were approximately 41,500 net acres. The sale also included 326 operated and non-operated wells currently producing approximately 50 mmcf of gasAlternative Base Rate (ABR) plus 7.00% per day.
In January 2017, we sold a portion of our acreage and producing properties in our Haynesville Shale operating area in northern Louisiana for approximately $450 million,annum, subject to a 2.00% ABR floor, at our option. The loan was made at 98% of par. We used the net proceeds to finance tender offers for our unsecured BVL senior notes and to fund the retirement of BVL’s secured revolving credit facility. The term loan matures in June 2024 and voluntary prepayments are subject to a make-whole premium prior to the 18-month anniversary of the closing of the term loan, a premium to par of 5.00% from the 18-month anniversary until but excluding the 30-month anniversary, a premium to par of 2.5% from the 30-month anniversary until but excluding the 42-month anniversary and at par beginning on the 42-month anniversary. The term loan may be subject to mandatory prepayments and offers to prepay with net cash proceeds of certain customary post-closing adjustments. Includedissuances of debt, certain asset sales and other dispositions of collateral and upon a change of control. See Note 5 of the notes to our consolidated financial statements included in Item 8 for further discussion of the sale were approximately 78,000 net acres. The sale also included 250 wells currently producing approximately 30 mmcf of gas per day.term loan facility.


In October 2016,Contractual Obligations and Off-Balance Sheet Arrangements
From time to time, we conveyedenter into arrangements and transactions that can give rise to contractual obligations and off-balance sheet commitments. The table below summarizes our interestscontractual cash obligations for both recorded obligations and certain off-balance sheet arrangements and commitments as of December 31, 2019:
  Payments Due By Period
  Total 2020 2021-2022 2023-2024 2025 and Beyond
  ($ in millions)
Long-term debt:          
Principal(a)
 $8,916
 $385
 $583
 $3,888
 $4,060
Interest 3,314
 705
 1,338
 1,101
 170
Finance lease obligation(b)
 20
 10
 10
 
 
Operating lease obligations(c)
 28
 10
 9
 4
 5
Operating commitments(d)
 8,056
 1,143
 1,955
 1,479
 3,479
Standby letters of credit 59
 59
 
 
 
VPP obligation(e)
 64
 55
 9
 
 
Other 13
 3
 8
 2
 
Total contractual cash obligations(f)
 $20,470
 $2,370
 $3,912
 $6,474
 $7,714

(a)
See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our long-term debt.
(b)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our finance lease obligation.
(c)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our operating lease obligations.
(d)
See Note 6 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our gathering, processing and transportation agreements and service contract commitments.
(e)
See Note 7 of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of our VPP obligation.
(f) This table does not include derivative liabilities or the Barnett Shale operating area located in north central Texasestimated discounted liability for future dismantlement, abandonment and received from the buyer aggregate net proceedsrestoration costs of approximately $218 million. We sold approximately 212,000 net developedoil and undeveloped acres, approximately 2,900 operated wells which produced an average of approximately 59 mboe per day in the 2016 third quarter, along with other property and equipment. We simultaneously terminated most of our future natural gas gatheringproperties. See Notes 14 and transportation commitments associated with this asset. In connection with this disposition, we paid $361 million to terminate certain natural gas gathering and transportation agreements, and paid $58 million to restructure a long-term sales agreement. We may be required to pay additional amounts in respect of certain title and environmental contingencies. Additionally, we recognized a charge of $284 million related to the impairment of other fixed assets sold in the divestiture. By exiting the Barnett Shale, we eliminated approximately $1.9 billion of total future midstream and downstream commitments, leading to an expected increase in our operating income for 2017 through 2019 of $200 to $300 million annually.
In December 2016, we sold the majority of our upstream and midstream assets in the Devonian Shale located in West Virginia, Kentucky and Virginia for proceeds of $140 million. We sold an interest in approximately 1.3 million net acres, retaining all rights below the base22, respectively, of the Kope formation,notes to our consolidated financial statements included in Item 8 of this report for more information on our derivatives and approximately 5,300 wells, along with related gathering assets, and other property and equipment. Additionally, we recognized an impairment charge of $142 million related to other fixed assets sold in the divestiture. In connection with this divestiture, we purchased one of our remaining VPP transactions for $127 million. All of the acquired interests were conveyed in our divestiture and we no longer have any future obligations related to this VPP.
In 2016, we sold certain of our other noncore assets for net proceeds of approximately $1.048 billion after post-closing adjustments. In conjunction with certain of these sales, we purchased four of our VPP transactions for approximately $259 million. A majority of the acquired interests were part of the asset divestitures discussed above and we no longer have any further commitments or obligations related to these VPPs. The asset divestitures cover various operating areas. We continue to pursue the sale of assets that do not fit in our strategic priorities.retirement obligations.
Gathering, Processing and Transportation Agreements
In February 2017, we paid approximately $290 million to assign an oil transportation agreement. This assignment is expected to reduce our future oil transportation commitments by approximately $450 million. The assignment is effective April 1, 2017. In addition, we terminated future natural gas transportation commitments related to divested assets of approximately $110 million for a cash payment of approximately $100 million. This termination was effective March 1, 2017.
In December 2016, we restructured our natural gas gathering and service agreement in our Powder River Basin operating area with Williams Partners L.P. and Crestwood Equity Partners L.P. The restructured services will replace the current cost-of-service arrangement and improve economics which support increased development across an expanded area of dedication in the region. The restructured services were effective January 1, 2017, for a 20-year term.
In 2016, we renegotiated our natural gas gathering agreement with Williams in our Mid-Continent operating area in exchange for a net $57 million payment. We estimate a 36% reduction in Mid-Continent gathering costs over the life of the contract. This amount will be amortized to oil, natural gas and NGL gathering, processing and transportation expense over the life of the agreement.
In 2016, we amended certain of our firm transportation agreements in the Haynesville, Barnett and Eagle Ford operating areas, which will reduce our firm transportation volume commitments and fees. We estimate a benefit of approximately $650 million gross ($415 million net) over the term of the contracts, including $80 million gross ($50 million net) in lower unused demand charges for the underutilized capacity and lower transportation fees in 2016.
Other
In 2016, we sold a long-term natural gas supply contract for $146 million in cash proceeds.

Liquidity and Capital Resources
Liquidity Overview
Our ability to grow, make capital expenditures and service our debt depends primarily upon the prices we receive for the oil, natural gas and NGL we sell. Substantial expenditures are required to replace reserves, sustain production and fund our business plans. Historically, oil and natural gas prices have been very volatile and may be subject to wide fluctuations in the future. The substantialA decline in oil, natural gas and NGL prices from 2014 levels hascould negatively affectedaffect the amount of cash we generate and have available for capital expenditures and debt service. A substantial or extended decline in oil, natural gasservice and NGL prices could have a material impact on our financial position, results of operations, cash flows and on the quantities of reserves that we maycan economically produce.produce or provide as collateral to our credit facility lenders. Other risks and uncertainties that could affect our liquidity include, but are not limited to, counterparty credit risk for our receivables, access to capital markets, regulatory risks and our ability to meet financial ratios and covenants in our financing agreements.
Based on our cash balance, forecasted cash flows from operating activities and availability under our revolving credit facilities, we expect to be able to fund our planned capital expenditures, meet our debt service requirements and fund our other commitments and obligations for the next 12 months.
As of December 31, 2016,2019, we had a cash balance of $882$6 million compared to $825$4 million as of December 31, 2015,2018, and we had a net working capital deficit of $1.506$1.141 billion as of December 31, 2019, compared to a net working capital deficit of $1.205$1.289 billion as of December 31, 2015. We made significant progress in 2016 and into 2017 to reduce near-term debt maturities, including reducing our 2017 debt maturities by $1.878 billion, or 99%, and our 2018 debt maturities by $815 million, or 93%. As of February 24, 2017, we had $77 million of debt maturing or that could be put to us in 2017 and 2018. As of December 31, 2016,2019, our working capital deficit includes $385 million of debt due in the next 12 months. Our total principal debt as of December 31, 2019 was $8.916 billion compared to $8.168 billion as of December 31, 2018. As of December 31, 2019, we had $2.749$1.351 billion of borrowing capacity available under our revolving credit facility, with no outstanding borrowings of $1.590 billion and $1.036 billion$59 million utilized for various letters of credit (including the $461 million supersedeas bond with respect to the 2019 Notes litigation).credit. See Note 35 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of our debt obligations, including principal and carrying amounts of our notes. Based on our cash balance, forecasted cash flows from operating activities and availability under our revolving credit facility, we expect to be able to fund our planned capital expenditures, meet our debt service requirements and fund our other commitments and obligations for the next 12 months.
In 2016, we took the following measures to improve our liquidity:
entered into a secured five-year term loan facility in aggregate principal amount of $1.5 billion;
issued $1.25 billion principal amount of unsecured 5.5% Convertible Senior Notes due 2026;
issued $1.0 billion principal amount of unsecured 8.00% Senior Notes due 2025;
exchanged 109 million shares of common stock for $577 million principal amount of our outstanding senior notes and contingent convertible senior notes, including $373 million principal amount that was scheduled to mature or could be put to us in 2017 or 2018;
retired $2.884 billion principal amount of our outstanding senior notes and contingent convertible notes through purchases in the open market, tender offers or repayment upon maturity for $2.734 billion, including $1.621 billion principal amount that was scheduled to mature or could be put to us in 2017 and 2018;
exchanged 120.2 million shares of common stock for $1.3 billion liquidation value of our preferred stock, eliminating $74 million of annual dividend obligations;
further amended our revolving credit agreement to reaffirm our borrowing base, postpone our next scheduled borrowing base redetermination date and modify or suspend certain credit agreement financial covenants; and
mitigated a portion of our downside exposure to commodity prices through derivative contracts, suspended dividend payments on our convertible preferred stock and divested assets to increase our liquidity.

Additionally in 2017, we retired $643 million aggregate principal amount of our outstanding senior notes and contingent convertible senior notes pursuant to tender offers, open market repurchases and redemptions. We also repaid our 6.25% Euro-denominated Senior Notes due 2017 upon maturity. We completed private exchanges of an aggregate of approximately 10.0 million shares of our common stock for approximately $100 million liquidation value of our preferred stock.
We may continue to access the capital markets or otherwise incur debt to refinance a portion of our outstanding indebtedness and improve our liquidity.
As operator of a substantial portion of our oil and natural gas properties under development, we have significant control and flexibility over the timing and execution of our development plan, enabling us to reduce our capital spending as needed. Our forecasted 2017 capital expenditures, inclusive of capitalized interest, are $1.9 - $2.5 billion, compared to our 2016 capital spending level of $1.7 billion. We currently plan to use cash flow from operations, cash on hand and availability under our revolving bank credit facility to fund our capital expenditures during 2017. We had liquidity (calculated as cash on hand and availability under our revolving credit facility) of approximately $3.4 billion as of February 24, 2017. We expect to generate additional liquidity with proceeds from future sales of assets that we determine do not fit our strategic priorities. Management continues to review operational plans for 2017 and beyond, which could result in changes to projected capital expenditures and projected revenues from sales of oil, natural gas and NGL. We closely monitor the amounts and timing of our sources and uses of funds, particularly as they affect our ability to maintain compliance with the financial covenants of our revolving credit facilities. Furthermore, our ability to generate operating cash flow in the current commodity price environment, sell assets, access capital markets or take any other action to improve our liquidity and manage our debt is subject to the risks discussed above and the other risks and uncertainties that exist in our industry, some of which we may not be able to anticipate at this time or control.

Derivative and Hedging Activities
Our results of operations and cash flows are impacted by changes in market prices for oil, natural gas and NGL. To mitigate a portion of our exposure to adverse market price changes, we enter into various derivative instruments. Our oil, natural gas and NGL derivative activities, when combined with our sales of oil, natural gas and NGL, allow us to better predict the total revenue we expect to receive.
As of February 19, 2020, including January and February derivative contracts that have settled, approximately 70% of our 2020 forecasted oil, natural gas and NGL production revenue was hedged. We had approximately 76% downside oil price protection through swaps and collars at an average price of $59.90 per bbl. We had 39% downside gas price protection through swaps at $2.76 per mcf and 14% under put spread arrangements based on an average bought put NYMEX price of $2.05 per mcf and exposure below an average sold put NYMEX price of $1.80 per mcf.
Oil Derivatives(a)
Year Type of Derivative Instrument Notional Volume Average NYMEX Price
    (mmbbls)  
2020 Swaps 30
 $59.59
2020 Two-way collars 2
 $65.00/$83.25
2020 Basis protection swaps 12
 $2.57
2021 Calls 4
 $61.58
2022 Calls 4
 $61.58
       
Natural Gas Derivatives(a)
Year Type of Derivative Instrument Notional Volume Average NYMEX Price
    (bcf)  
2020 Swaps 265
 $2.76
2020 Calls 22
 $12.00
2020 Basis protection swaps 53
 $0.03
2020 
Put spread(b)
 94
 $1.80/$2.05
2021 Call swaptions 15
 $2.80
2021 Calls 96
 $2.75
2022 Call swaption 15
 $2.80

(a)Includes amounts settled in January and February 2020.
(b)
Put spread: These instruments contain a fixed floor price (bought put) and sub floor price (sold put). If the market price exceeds the bought put strike, we receive the market price. If the market price is between the bought put and sold put strike prices, we receive the bought put price. If the market price falls below the subfloor, we receive the market price plus the difference between the sold put and bought put.
See Note 14 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of derivatives and hedging activities.

Debt
We are committed to reducing total leverage to achieve long-term net debt/EBITDAX of 2x. To accomplish this goal, we intend to allocate our capital expenditures to projects we believe offer the highest return and value regardless of the commodity price environment, to deploy leading drilling and completion technology throughout our portfolio, and to take advantage of acquisition and divestiture opportunities to strengthen our cost structure and our portfolio. Increasing our margins means not only increasing our absolute level of cash flows from operations, but also increasing our cash flows from operations generated per barrel of oil equivalent production. We continue to seek opportunities to reduce cash costs (production, gathering, processing and transportation and general and administrative), improve our production volumes from existing wells, and achieve additional operating and capital efficiencies with a focus on growing our oil volumes.
We may continue to use a combination of cash, borrowings and issuances of our common stock or other securities and the proceeds from asset sales to retire our outstanding debt or preferred stock through privately negotiated transactions, open market repurchases, redemptions, exchanges, tender offers or otherwise, but we are under no obligation to do so.
Revolving Credit Facility
Our revolving credit facility matures in September 2023 and the current aggregate commitment of the lenders and borrowing base under the facility is $3.0 billion. The revolving credit facility provides for an accordion feature, pursuant to which the aggregate commitments thereunder may be increased to up to $4.0 billion from time to time, subject to agreement of the participating lenders and certain other customary conditions. Scheduled borrowing base redeterminations will continue to occur semiannually. Our next borrowing base redetermination is scheduled for the second quarter of 2020. Borrowings under the facility bear interest at a variable rate. As of December 31, 2019, we had outstanding borrowings of $1.590 billion under our revolving credit facility and had used $59 million for various letters of credit. See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the terms of our revolving credit facility. As of December 31, 2019, we were in compliance with all applicable financial covenants under the credit agreement. As of December 31, 2019, our leverage ratio was approximately 3.43 to 1, our first lien leverage ratio was approximately 1.21 to 1 and our fixed charge coverage ratio was approximately 3.64 to 1.
Term Loan
In December 2019, we entered into a secured 4.5-year term loan facility in an aggregate principal amount of $1.5 billion for net proceeds of approximately $1.455 billion. Our obligations under the new facility are unconditionally guaranteed on a joint and several basis by the same subsidiaries that guarantee our revolving credit facility and second lien notes (including BVL and its subsidiaries) and are secured by first-priority liens on the same collateral securing our revolving credit facility (with a position in the collateral proceeds waterfall junior to the revolving credit facility). The term loan bears interest at a rate of London Interbank Offered Rate (LIBOR) plus 8.00% per annum, subject to a 1.00% LIBOR floor, or the Alternative Base Rate (ABR) plus 7.00% per annum, subject to a 2.00% ABR floor, at our option. The loan was made at 98% of par. We used the net proceeds to finance tender offers for our unsecured BVL senior notes and to fund the retirement of BVL’s secured revolving credit facility. The term loan matures in June 2024 and voluntary prepayments are subject to a make-whole premium prior to the 18-month anniversary of the closing of the term loan, a premium to par of 5.00% from the 18-month anniversary until but excluding the 30-month anniversary, a premium to par of 2.5% from the 30-month anniversary until but excluding the 42-month anniversary and at par beginning on the 42-month anniversary. The term loan may be subject to mandatory prepayments and offers to prepay with net cash proceeds of certain issuances of debt, certain asset sales and other dispositions of collateral and upon a change of control. See Note 5 of the notes to our consolidated financial statements included in Item 8 for further discussion of the term loan facility.

Contractual Obligations and Off-Balance Sheet Arrangements
From time to time, we enter into arrangements and transactions that can give rise to contractual obligations and off-balance sheet commitments. The table below summarizes our contractual cash obligations for both recorded obligations and certain off-balance sheet arrangements and commitments as of December 31, 2019:
  Payments Due By Period
  Total 2020 2021-2022 2023-2024 2025 and Beyond
  ($ in millions)
Long-term debt:          
Principal(a)
 $8,916
 $385
 $583
 $3,888
 $4,060
Interest 3,314
 705
 1,338
 1,101
 170
Finance lease obligation(b)
 20
 10
 10
 
 
Operating lease obligations(c)
 28
 10
 9
 4
 5
Operating commitments(d)
 8,056
 1,143
 1,955
 1,479
 3,479
Standby letters of credit 59
 59
 
 
 
VPP obligation(e)
 64
 55
 9
 
 
Other 13
 3
 8
 2
 
Total contractual cash obligations(f)
 $20,470
 $2,370
 $3,912
 $6,474
 $7,714

(a)
See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our long-term debt.
(b)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our finance lease obligation.
(c)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our operating lease obligations.
(d)
See Note 6 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our gathering, processing and transportation agreements and service contract commitments.
(e)
See Note 7 of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of our VPP obligation.
(f) This table does not include derivative liabilities or the estimated discounted liability for future dismantlement, abandonment and restoration costs of oil and natural gas properties. See Notes 14 and 22, respectively, of the notes to our consolidated financial statements included in Item 8 of this report for more information on our derivatives and asset retirement obligations.
Capital Expenditures
Our 2020 capital expenditures program is expected to generate greater capital efficiency than the 2019 program as we focus on expanding our margins through disciplined investing in the highest-return projects. We have significant control and flexibility over the timing and execution of our development plan, enabling us to reduce our capital spending as needed. Our forecasted 2020 capital expenditures are $1.3 – $1.6 billion compared to our 2019 capital spending level of $2.2 billion. We reduced the midpoint of our 2020 range by approximately 30% from 2019 spending to improve our cash flow profile. Management continues to review operational plans for 2020 and beyond, which could result in changes to projected capital expenditures and projected revenues from sales of oil, natural gas and NGL.

Credit Risk
Some of our counterparties have requested or required us to post collateral as financial assurance of our performance under certain contractual arrangements, such as gathering, processing, transportation and hedging agreements. As of February 24, 2017,2020, we have received requests and posted approximately $275$60 million inof collateral under such arrangements (excluding the supersedeas bond with respectrelated to the 2019 Notes litigation).certain of our marketing and other contracts. We may be requested or required by other counterparties to post additional collateral in an aggregate amount of approximately $451$220 million, which may be in the form of additional letters of credit, cash or other acceptable collateral. However, we have substantial long-term business relationships with each of these counterparties, and we may be able to mitigate any collateral requests through ongoing business arrangements and by offsetting amounts that the counterparty owes us. Any posting of collateral consisting of cash or letters of credit reduces availability under our revolving credit facility and negatively impacts our liquidity.
In addition, during the next 12 months, we may be required to pay up to $440 million in connection with the judgment against us related to the redemption at par value of our 6.775% Senior Notes due 2019. In connection with our appeal of the decision by the U.S. District Court for the Southern District of New York regarding the redemption, we posted a supersedeas bond in the amount of $461 million in July 2015, which is reflected as an outstanding letter of credit under our revolving credit facility. This contingent payment is fully accrued on our consolidated balance sheet. See Note 4 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the recent developments in this litigation.
To add more certainty to our future estimated cash flows by mitigating our downside exposure to lower commodity prices, as of February 24, 2017, we have downside price protection, through open swaps, on approximately 68% of our projected 2017 oil production at an average price of $50.19 per bbl. We also have downside price protection, through open swaps and collars, on approximately 71% of our projected 2017 natural gas production at an average price of $3.07 per mcf, of which 3% is hedged under two-way collar arrangements based on an average bought put NYMEX price of $3.00 per mcf. We also have downside price protection, through open swaps, on approximately 7% of our projected 2017 NGL production at an average price of $0.28 per gallon of ethane.
As highlighted above, we have taken measures to mitigate the liquidity concerns facing us in 2017 and beyond, but there can be no assurance that such measures will satisfy our needs. Further, our ability to generate operating cash flow in the current commodity price environment, sell assets, access capital markets or take any other action to improve our liquidity and manage our debt is subject to the risks discussed above and the other risks and uncertainties that exist in our industry, some of which we may not be able to anticipate at this time or control.

Sources of Funds
The following table presents the sources of our cash and cash equivalents for the years ended December 31, 2016, 20152019, 2018 and 2014.2017. See Notes 12, 14 and 16Note 3 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of divestitures of oil and natural gas assets, investments and other assets, respectively.assets.
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Cash provided by (used in) operating activities $(204) $1,234
 $4,634
Proceeds from issuance of term loan 1,476
 
 
Proceeds from long-term debt, net 2,210
 
 2,966
Proceeds from oilfield services long-term debt, net 
 
 888
Divestitures of proved and unproved properties 1,406
 189
 5,813
Sales of other property and equipment 131
 89
 1,003
Proceeds from sales of investments 
 
 239
Other 
 52
 37
Total sources of cash and cash equivalents $5,019
 $1,564
 $15,580
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Cash provided by operating activities $1,623
 $1,730
 $475
Proceeds from issuances of debt, net 1,563
 1,236
 1,585
Proceeds from revolving credit facility borrowings, net 496
 
 781
Proceeds from divestitures of proved and unproved properties, net 130
 2,231
 1,249
Proceeds from sales of other property and equipment, net 6
 147
 55
Proceeds from sales of investments 
 74
 
Total sources of cash and cash equivalents $3,818
 $5,418
 $4,145
Cash used in operating activities was $204 million in 2016 compared to cashFlow from Operating Activities
Cash provided by operating activities of $1.234was $1.623 billion, $1.730 billion and $475 million in 20152019, 2018 and $4.634 billion in 2014.2017, respectively. The decrease in 2019 is primarily the result of lower realized prices for the oil and natural gas we sold in addition to lower volumes of oil, natural gas and NGL we sold partially offset by decreasesas well as certain cash expenditures related to our WildHorse acquisition. The increase in certain2018 is primarily the result of our operating expenses.higher prices for the oil, natural gas and NGL we sold. Changes in cash flow from operations are largely due to the same factors that affect our net income, excluding various non-cash items, such as depreciation, depletion and amortization, certain impairments, gains or losses on sales of fixed assets, deferred income taxes and mark-to-market changes in our derivative instruments. See further discussion below under Results of Operations.

Debt issuances
The following table reflects the proceeds received from issuances of debt in 2016, 20152019, 2018 and 2014.2017. See Note 35 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion.
  Years Ended December 31,
  2016 2015 2014
  
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 Net
Proceeds
  ($ in millions)
Convertible senior notes $1,250
 $1,235
 $
 $
 $
 $
Senior notes(a)
 1,000
 975
 
 
 3,500
 3,460
Term loans(a)
 1,500
 1,476
 
 
 400
 394
Total $3,750
 $3,686
 $
 $
 $3,900
 $3,854

(a)Our 2015 debt exchange of certain outstanding unsecured senior notes and contingent notes for Second Lien Notes did not result in any additional debt issued or proceeds received. The 2014 amounts include debt issued in connection with the spin-off of our oilfield services business. All deferred charges and debt balances related to the spin-off were removed from our consolidated balance sheet as of June 30, 2014. See Note 13 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the spin-off.
  Years Ended December 31,
  2019 2018 2017
  
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 Net
Proceeds
  ($ in millions)
Term loan $1,500
 $1,455
 $
 $
 $
 $
Senior secured second lien notes 120
 108
 
 
 
 
Senior notes 
 
 1,250
 1,236
 1,600
 1,585
Total $1,620
 $1,563
 $1,250
 $1,236
 $1,600
 $1,585

Divestitures of Proved and Unproved Properties
We currently planDuring 2019, we divested certain non-core assets for approximately $130 million. During 2018, we divested $2.231 billion of proved and unproved properties including $1.868 billion for all of our Utica Shale properties in Ohio. During 2017, we divested certain non-core assets for approximately $1.249 billion. Proceeds from these transactions were used to use cash flow from operations, cash on handrepay debt and our revolving credit facility to fund our capital expenditures during 2017. We expect to generate additional liquidity with proceeds from future sales of assets that we determine do not fit our strategic priorities. Prior to June 2014, we also utilized a $500 million oilfield services credit facility. This facility was terminated in June 2014 in connection with the spin-off of our oilfield services business.development program. See Note 133 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the spin-off. Under our revolving credit facilities, we borrowed and repaid $5.146 billion in 2016, we had no borrowings or repayments in 2015 and we borrowed $7.406 billion and repaid $7.788 billion in 2014.discussion.
UsesRevolving Credit Facility
Our revolving credit facility matures in September 2023 and the current aggregate commitment of Funds
the lenders and borrowing base under the facility is $3.0 billion. The following table presentsrevolving credit facility provides for an accordion feature, pursuant to which the usesaggregate commitments thereunder may be increased to up to $4.0 billion from time to time, subject to agreement of the participating lenders and certain other customary conditions. Scheduled borrowing base redeterminations will continue to occur semiannually. Our next borrowing base redetermination is scheduled for the second quarter of 2020. Borrowings under the facility bear interest at a variable rate. As of December 31, 2019, we had outstanding borrowings of $1.590 billion under our cashrevolving credit facility and cash equivalentshad used $59 million for 2016, 2015 and 2014:
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Oil and Natural Gas Expenditures:      
Drilling and completion costs(a)
 $1,276
 $3,083
 $4,495
Acquisitions of proved and unproved properties 571
 135
 793
Interest capitalized on unproved leasehold 236
 410
 604
Total oil and natural gas expenditures 2,083
 3,628
 5,892
       
Other Uses of Cash and Cash Equivalents:      
Cash paid to repurchase debt 2,734
 508
 3,362
Cash paid for title defects 69
 
 
Cash paid to repurchase noncontrolling interest of CHK C-T(b)
 
 143
 
Cash paid to purchase leased rigs and compressors 
 
 499
Cash paid to repurchase CHK Utica preferred shares(b)
 
 
 1,254
Cash paid on financing derivatives(c)
 
 
 53
Payments on credit facility borrowings, net 
 
 382
Additions to other property and equipment 37
 143
 227
Dividends paid 
 289
 405
Distributions to noncontrolling interest owners 10
 85
 173
Additions to investments 
 1
 
Other 29
 50
 62
Total other uses of cash and cash equivalents 2,879
 1,219
 6,417
Total uses of cash and cash equivalents $4,962
 $4,847
 $12,309

(a)Net of $51 million and $679 million in drilling and completion carries received from our joint venture partners during 2015 and 2014, respectively.
(b)See Note 8various letters of credit. See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for discussion of these transactions.
(c)Reflects derivatives deemed to contain, for accounting purposes, a significant financing element at contract inception.
Our primary use of funds is for drilling and completion costs on our oil and natural gas properties. Our drilling and completion costs decreased in 2016 compared to 2015 and 2014, primarily as a result of significantly decreased activity. During 2016, our average operated rig count was 10 rigs compared to an average operated rig count of 28 rigs in 2015 and 64 rigs in 2014. Our acquisitions of proved and unproved properties increased in 2016 compared to 2015, primarily resulting from purchases of oil and natural gas interests previously sold to third parties in connection with five of our VPP transactions for approximately $387 million.
Capital expenditures related to our midstream assets, oilfield services business, and other fixed assets were $37 millionconsolidated financial statements included in 2016 compared to $143 million in 2015 and $227 million in 2014. The reductionItem 8 of these expenditures in 2016 and 2015 as compared to 2014 is primarily the resultthis report for further discussion of the spin-off of our oilfield services business in June 2014 and reductions in construction expenditures on our corporate headquarters and field offices.

In 2014, we purchased rigs and compressors previously sold under long-term lease arrangements for approximately $499 million as part of a strategic initiative to reduce complexity and future commitments as well as to facilitate asset sales and the spin-off of our oilfield services business in June 2014.
In 2016, we used $2.734 billion of cash to repurchase $2.884 billion principal amount of debt. In addition to the repayment at maturity of $259 million principal amount of our 3.25% Senior Notes due 2016, we repurchased in the open market approximately $141 million principal amount of our contingent convertible senior notes and $325 million principal amount of our outstanding senior notes for $386 million in aggregate. Additionally in 2016, we used the proceeds from our term loan facility, convertible note issuance, senior note issuance and cash on hand to purchase and retire $1.451 billion principal amount of our senior notes and $708 million principal amount of our contingent convertible senior notes for an aggregate $2.089 billion pursuant to tender offers.
In 2015, we used $508 million of cash to reduce debt. As required by the terms of the indenture for our 2.75% Contingent Convertible Senior Notes due 2035 (the 2035 Notes), the holders were provided the option to require us to purchase on November 15, 2015, all or a portion of the holders’ 2035 Notes at par plus accrued and unpaid interest up to, but excluding, November 15, 2015. On November 16, 2015, we paid an aggregate of approximately $394 million to purchase all of the 2035 Notes that were tendered and not withdrawn. An aggregate of $2 million principal amount of the 2035 Notes remains outstanding. In addition, during November and December 2015, we repurchased through privately negotiated transactions, approximately $119 million aggregate principal amount of our 3.25% Senior Notes due 2016 for approximately $114 million.
In 2014, we used $3.362 billion of cash to reduce debt. We issued $3.0 billion in aggregate principal amount of senior notes at par. The offering included two series of notes: $1.5 billion in aggregate principal amount of Floating Rate Senior Notes due 2019 and $1.5 billion in aggregate principal amount of 4.875% Senior Notes due 2022. We used a portion of the net proceeds of $2.966 billion to repay the borrowings under, and terminate, our $2.0 billion term loanrevolving credit facility. We usedAs of December 31, 2019, we were in compliance with all applicable financial covenants under the remaining proceeds along with cash on handcredit agreement. As of December 31, 2019, our leverage ratio was approximately 3.43 to redeem the $97 million principal amount of 6.875% Senior Notes due 20181, our first lien leverage ratio was approximately 1.21 to 1 and our fixed charge coverage ratio was approximately 3.64 to purchase and redeem the $1.265 billion principal amount of the 9.5% Senior Notes due 2015 for $1.454 billion.
We paid dividends on our preferred stock of $171 million in each of 2015 and 2014. We paid dividends on our common stock of $118 million in 2015 and $234 million in 2014. We eliminated common stock dividends effective in the 2015 third quarter and suspended preferred stock dividends effective in the 2016 first quarter. On February 15, 2017, we reinstated the payment of dividends on each series of our outstanding convertible preferred stock and paid our dividends in arrears.1.
Term Loan Facility
In 2016,December 2019, we entered into a secured five-year4.5-year term loan facility in an aggregate principal amount of $1.5 billion for net proceeds of approximately $1.476$1.455 billion. Our obligations under the new facility are unconditionally guaranteed on a joint and several basis by the same subsidiaries that guarantee our revolving credit facility and second lien notes (including BVL and senior notesits subsidiaries) and are secured by first-priority liens on the same collateral securing our revolving credit facility (with a position in the collateral proceeds waterfall junior to the revolving credit facility). The term loan bears interest at a rate of London Interbank Offered Rate (LIBOR) plus 7.50%8.00% per annum, subject to a 1.00% LIBOR floor, or the Alternative Base Rate (ABR) plus 6.50%7.00% per annum, subject to a 2.00% ABR floor, at our option. The loan was made at par without original discount.98% of par. We used the net proceeds to finance tender offers for our unsecured notes.BVL senior notes and to fund the retirement of BVL’s secured revolving credit facility. The term loan matures in August 2021June 2024 and voluntary prepayments are subject to a make-whole premium prior to the second18-month anniversary of the closing of the term loan, a premium to par of 4.25%5.00% from the second18-month anniversary until but excluding the third30-month anniversary, a premium to par of 2.125%2.5% from the third30-month anniversary until but excluding the fourth42-month anniversary and at par beginning on the fourth42-month anniversary. The term loan may be subject to mandatory prepayments and offers to purchaseprepay with net cash proceeds of certain issuances of debt, certain asset sales and other dispositions of collateral and upon a change of control. See Note 35 of the notes to our consolidated financial statements included in Item 8 for further discussion of the term loan facility.


Contractual Obligations and Off-Balance Sheet Arrangements
From time to time, we enter into arrangements and transactions that can give rise to contractual obligations and off-balance sheet commitments. The table below summarizes our contractual cash obligations for both recorded obligations and certain off-balance sheet arrangements and commitments as of December 31, 2019:
  Payments Due By Period
  Total 2020 2021-2022 2023-2024 2025 and Beyond
  ($ in millions)
Long-term debt:          
Principal(a)
 $8,916
 $385
 $583
 $3,888
 $4,060
Interest 3,314
 705
 1,338
 1,101
 170
Finance lease obligation(b)
 20
 10
 10
 
 
Operating lease obligations(c)
 28
 10
 9
 4
 5
Operating commitments(d)
 8,056
 1,143
 1,955
 1,479
 3,479
Standby letters of credit 59
 59
 
 
 
VPP obligation(e)
 64
 55
 9
 
 
Other 13
 3
 8
 2
 
Total contractual cash obligations(f)
 $20,470
 $2,370
 $3,912
 $6,474
 $7,714

(a)
See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our long-term debt.
(b)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our finance lease obligation.
(c)
See Note 8 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our operating lease obligations.
(d)
See Note 6 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our gathering, processing and transportation agreements and service contract commitments.
(e)
See Note 7 of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of our VPP obligation.
(f) This table does not include derivative liabilities or the estimated discounted liability for future dismantlement, abandonment and restoration costs of oil and natural gas properties. See Notes 14 and 22, respectively, of the notes to our consolidated financial statements included in Item 8 of this report for more information on our derivatives and asset retirement obligations.
Capital Expenditures
Our 2020 capital expenditures program is expected to generate greater capital efficiency than the 2019 program as we focus on expanding our margins through disciplined investing in the highest-return projects. We have significant control and flexibility over the timing and execution of our development plan, enabling us to reduce our capital spending as needed. Our forecasted 2020 capital expenditures are $1.3 – $1.6 billion compared to our 2019 capital spending level of $2.2 billion. We reduced the midpoint of our 2020 range by approximately 30% from 2019 spending to improve our cash flow profile. Management continues to review operational plans for 2020 and beyond, which could result in changes to projected capital expenditures and projected revenues from sales of oil, natural gas and NGL.

Credit Risk
Some of our counterparties have requested or required us to post collateral as financial assurance of our performance under certain contractual arrangements, such as gathering, processing, transportation and hedging agreements. As of February 24, 2020, we have posted approximately $60 million of collateral related to certain of our marketing and other contracts. We may be requested or required by other counterparties to post additional collateral in an aggregate amount of approximately $220 million, which may be in the form of additional letters of credit, cash or other acceptable collateral. However, we have substantial long-term business relationships with each of these counterparties, and we may be able to mitigate any collateral requests through ongoing business arrangements and by offsetting amounts that the counterparty owes us. Any posting of collateral consisting of cash or letters of credit reduces availability under our revolving credit facility and negatively impacts our liquidity.
Sources of Funds
The following table presents the sources of our cash and cash equivalents for the years ended December 31, 2019, 2018 and 2017. See Note 3 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of divestitures of oil and natural gas assets.
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Cash provided by operating activities $1,623
 $1,730
 $475
Proceeds from issuances of debt, net 1,563
 1,236
 1,585
Proceeds from revolving credit facility borrowings, net 496
 
 781
Proceeds from divestitures of proved and unproved properties, net 130
 2,231
 1,249
Proceeds from sales of other property and equipment, net 6
 147
 55
Proceeds from sales of investments 
 74
 
Total sources of cash and cash equivalents $3,818
 $5,418
 $4,145
Cash Flow from Operating Activities
Cash provided by operating activities was $1.623 billion, $1.730 billion and $475 million in 2019, 2018 and 2017, respectively. The decrease in 2019 is primarily the result of lower prices for the oil, natural gas and NGL we sold as well as certain cash expenditures related to our WildHorse acquisition. The increase in 2018 is primarily the result of higher prices for the oil, natural gas and NGL we sold. Changes in cash flow from operations are largely due to the same factors that affect our net income, excluding various non-cash items, such as depreciation, depletion and amortization, certain impairments, gains or losses on sales of fixed assets, deferred income taxes and mark-to-market changes in our derivative instruments. See further discussion below under Results of Operations.

Debt issuances
The following table reflects the proceeds received from issuances of debt in 2019, 2018 and 2017. See Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion.
  Years Ended December 31,
  2019 2018 2017
  
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 Net
Proceeds
  ($ in millions)
Term loan $1,500
 $1,455
 $
 $
 $
 $
Senior secured second lien notes 120
 108
 
 
 
 
Senior notes 
 
 1,250
 1,236
 1,600
 1,585
Total $1,620
 $1,563
 $1,250
 $1,236
 $1,600
 $1,585
Divestitures of Proved and Unproved Properties
During 2019, we divested certain non-core assets for approximately $130 million. During 2018, we divested $2.231 billion of proved and unproved properties including $1.868 billion for all of our Utica Shale properties in Ohio. During 2017, we divested certain non-core assets for approximately $1.249 billion. Proceeds from these transactions were used to repay debt and fund our development program. See Note 3 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion.
Revolving Credit Facility
We have a $4.0 billion senior securedOur revolving credit facility (currently subject to a $3.8 billion borrowing base) that matures in December 2019. AsSeptember 2023 and the current aggregate commitment of December 31, 2016, we had no outstanding borrowingsthe lenders and borrowing base under the facility is $3.0 billion. The revolving credit facility and had used $1.036provides for an accordion feature, pursuant to which the aggregate commitments thereunder may be increased to up to $4.0 billion from time to time, subject to agreement of the revolving credit facilityparticipating lenders and certain other customary conditions. Scheduled borrowing base redeterminations will continue to occur semiannually. Our next borrowing base redetermination is scheduled for various lettersthe second quarter of credit (including the $461 million supersedeas bond with respect to the 2019 Notes litigation). See Liquidity Overview above for additional information on our collateral postings.2020. Borrowings under the facility bear interest at a variable rate. We are required to secure our obligationsAs of December 31, 2019, we had outstanding borrowings of $1.590 billion under the facility with liens on certain of our oil and natural gas properties, with the liens to be released upon the satisfaction of specific conditions. The applicable interest rates under the facility fluctuate based on the percentage of the borrowing base used. In 2016, we amended our revolving credit facility to provide covenant relief and affirm our $4.0 billion borrowing base. Our borrowing base may be reduced if we disposehad used $59 million for various letters of a certain percentage of the value of the collateral securing the facility. As a result of certain asset sales discussed in credit. See Note 125 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the terms of our revolving credit facility. As of December 31, 2019, we were in compliance with all applicable financial covenants under the credit agreement. As of December 31, 2019, our leverage ratio was approximately 3.43 to 1, our first lien leverage ratio was approximately 1.21 to 1 and our fixed charge coverage ratio was approximately 3.64 to 1.
Term Loan
In December 2019, we entered into a secured 4.5-year term loan facility in an aggregate principal amount of $1.5 billion for net proceeds of approximately $1.455 billion. Our obligations under the new facility are unconditionally guaranteed on a joint and several basis by the same subsidiaries that guarantee our revolving credit facility and second lien notes (including BVL and its subsidiaries) and are secured by first-priority liens on the same collateral securing our revolving credit facility (with a position in the collateral proceeds waterfall junior to the revolving credit facility). The term loan bears interest at a rate of London Interbank Offered Rate (LIBOR) plus 8.00% per annum, subject to a 1.00% LIBOR floor, or the Alternative Base Rate (ABR) plus 7.00% per annum, subject to a 2.00% ABR floor, at our option. The loan was made at 98% of par. We used the net proceeds to finance tender offers for our unsecured BVL senior notes and to fund the retirement of BVL’s secured revolving credit facility. The term loan matures in June 2024 and voluntary prepayments are subject to a make-whole premium prior to the 18-month anniversary of the closing of the term loan, a premium to par of 5.00% from the 18-month anniversary until but excluding the 30-month anniversary, a premium to par of 2.5% from the 30-month anniversary until but excluding the 42-month anniversary and at par beginning on the 42-month anniversary. The term loan may be subject to mandatory prepayments and offers to prepay with net cash proceeds of certain issuances of debt, certain asset sales and other salesdispositions of collateral since the dateand upon a change of the most recent amendment, our borrowing base was reduced to $3.8 billion in October 2016.control. See Note 35 of the notes to our consolidated financial statements included in Item 8 of Part II for further discussion of the terms of the revolving credit facility, as amended. As of December 31, 2016, our interest coverage ratio was approximately 2.04 to 1.0, and we were in compliance with all applicable financial covenants under the credit agreement.
Hedging Arrangements
In 2015, we began entering into bilateral hedging agreements. The counterparties’ and our obligations under certain of the bilateral hedging agreements must be secured by cash or letters of credit to the extent that any mark-to-market amounts owed to us or by us exceed defined thresholds. In 2016, certain of our counterparties that are also lenders (or affiliates of our lenders) under our revolving credit facility entered into derivative contracts to be secured by the same collateral that secures our revolving creditterm loan facility. This allows us to reduce any letters of credit posted as security with those counterparties.


Senior NoteContractual Obligations and Off-Balance Sheet Arrangements
Our senior noteFrom time to time, we enter into arrangements and transactions that can give rise to contractual obligations consisted of the followingand off-balance sheet commitments. The table below summarizes our contractual cash obligations for both recorded obligations and certain off-balance sheet arrangements and commitments as of December 31, 2016:2019:
  December 31, 2016
  Principal
Amount
 Carrying
Amount
  ($ in millions)    
6.25% euro-denominated senior notes due 2017(a)
 $258
 $258
6.5% senior notes due 2017 134
 134
7.25% senior notes due 2018 64
 64
Floating rate senior notes due 2019 380
 380
6.625% senior notes due 2020 780
 780
6.875% senior notes due 2020 279
 279
6.125% senior notes due 2021 550
 550
5.375% senior notes due 2021 270
 270
4.875% senior notes due 2022 451
 451
8.00% senior secured second lien notes due 2022(b)
 2,419
 3,409
5.75% senior notes due 2023 338
 338
8.00% senior notes due 2025 1,000
 1,000
5.5% convertible senior notes due 2026(c)(d)
 1,250
 811
2.75% contingent convertible senior notes due 2035(e)
 2
 2
2.5% contingent convertible senior notes due 2037(d)(e)
 114
 112
2.25% contingent convertible senior notes due 2038(d)(e)
 200
 180
Debt issuance costs 
 (41)
Discount on senior notes 
 (16)
Interest rate derivatives(f)
 
 3
Total senior notes, net 8,489
 8,964
Less current maturities of senior notes, net(g)
 (506) (503)
Total long-term senior notes, net $7,983
 $8,461
  Payments Due By Period
  Total 2020 2021-2022 2023-2024 2025 and Beyond
  ($ in millions)
Long-term debt:          
Principal(a)
 $8,916
 $385
 $583
 $3,888
 $4,060
Interest 3,314
 705
 1,338
 1,101
 170
Finance lease obligation(b)
 20
 10
 10
 
 
Operating lease obligations(c)
 28
 10
 9
 4
 5
Operating commitments(d)
 8,056
 1,143
 1,955
 1,479
 3,479
Standby letters of credit 59
 59
 
 
 
VPP obligation(e)
 64
 55
 9
 
 
Other 13
 3
 8
 2
 
Total contractual cash obligations(f)
 $20,470
 $2,370
 $3,912
 $6,474
 $7,714

(a)
The principal amount shown is based on the exchange rate of $1.0517 to €1.00 as of December 31, 2016. See Note 115 of the notes to our consolidated financial statements included in Item 8 of this report for information ona description of our related foreign currency derivatives.long-term debt.
(b)The carrying amount as of December 31, 2016, includes a premium of $990 million associated with a troubled debt restructuring. The premium is being amortized based on an effective yield method.
(c)The notes are convertible, at the holder’s option, prior to maturity under certain circumstances into cash, common stock or a combination of cash and common stock, at our election.
(d)The carrying amount as of December 31, 2016, is reflected net of a discount associated with the equity component of our convertible and contingent convertible senior notes of $461 million.
(e)The notes are convertible, at the holder’s option, prior to maturity under certain circumstances into cash and, if applicable, shares of our common stock using a net share settlement process. We may redeem our 2.75% Contingent Convertible Senior Notes due 2035 at any time. The holders of our contingent convertible senior notes may require us to repurchase, in cash, all or a portion of their notes at 100% of the principal amount of the notes on any of four dates that are five, ten, fifteen and twenty years before the maturity date.

(f)
See Note 118 of the notes to our consolidated financial statements included in Item 8 of this report for discussion related to these instruments.a description of our finance lease obligation.
(g)(c)As of December 31, 2016, current maturities of long-term debt, net includes our 6.25% Euro-denominated Senior Notes due January 2017, 6.5% Senior Notes due 2017 and our 2037 Notes. As discussed in footnote (b) above and in
See Note 38 of the notes to our consolidated financial statements included in Item 8 of this report the holdersfor a description of our 2037 Notes could exercise their individual demand repurchase rights on May 15, 2017, which would require us to repurchase all or a portionoperating lease obligations.
(d)
See Note 6 of the principal amountnotes to our consolidated financial statements included in Item 8 of this report for a description of our gathering, processing and transportation agreements and service contract commitments.
(e)
See Note 7 of the notes. Asnotes to our consolidated financial statements included in Item 8 of December 31, 2016, there was $2 millionthis report for a discussion of discount associated with the equity component of the 2037 Notes.our VPP obligation.
For further discussion(f) This table does not include derivative liabilities or the estimated discounted liability for future dismantlement, abandonment and details regarding our senior notesrestoration costs of oil and convertible senior notes, see Note 3natural gas properties. See Notes 14 and 22, respectively, of the notes to our consolidated financial statements included in Item 8 of this report.report for more information on our derivatives and asset retirement obligations.
Capital Expenditures
Our 2020 capital expenditures program is expected to generate greater capital efficiency than the 2019 program as we focus on expanding our margins through disciplined investing in the highest-return projects. We have significant control and flexibility over the timing and execution of our development plan, enabling us to reduce our capital spending as needed. Our forecasted 2020 capital expenditures are $1.3 – $1.6 billion compared to our 2019 capital spending level of $2.2 billion. We reduced the midpoint of our 2020 range by approximately 30% from 2019 spending to improve our cash flow profile. Management continues to review operational plans for 2020 and beyond, which could result in changes to projected capital expenditures and projected revenues from sales of oil, natural gas and NGL.

Credit Risk
Derivative instruments that enableSome of our counterparties have requested or required us to managepost collateral as financial assurance of our exposure to oil, natural gasperformance under certain contractual arrangements, such as gathering, processing, transportation and NGL prices, as well as to foreign currency volatility, expose us to credit risk from our counterparties. To mitigate this risk, we enter into derivative contracts only with counterparties that are rated investment grade and deemed by management to be competent and competitive market makers, and we attempt to limit our exposure to non-performance by any single counterparty.hedging agreements. As of December 31, 2016,February 24, 2020, we have posted approximately $60 million of collateral related to certain of our oil, natural gas, NGLmarketing and cross currency derivative instruments were spread among 12 counterparties. Additionally, the counterparties under our commodity hedging arrangements are required to secure their obligations in excess of defined thresholds.
Our accounts receivable are primarily from purchasers of oil, natural gas and NGL ($840 million as of December 31, 2016) and exploration and production companies that own interests in properties we operate ($156 million as of December 31, 2016). This industry concentration has the potential to impact our overall exposure to credit risk, either positively or negatively, in that our customers and joint working interest ownersother contracts. We may be similarly affectedrequested or required by changesother counterparties to post additional collateral in economic, industry or other conditions. We generally requirean aggregate amount of approximately $220 million, which may be in the form of additional letters of credit, cash or parent guarantees for receivables from parties that are judgedother acceptable collateral. However, we have substantial long-term business relationships with each of these counterparties, and we may be able to have sub-standard credit, unless the credit risk can otherwise be mitigated. During 2016, 2015 and 2014, we recognized $10 million, $4 million and $2 million, respectively, of bad debt expense related to potentially uncollectible receivables. Additionally, during 2015, we recorded $22 million of impairment of a note receivable related to a previous asset sale as a result of the increased credit risk associated with declining commodity prices.
Contractual Obligations and Off-Balance Sheet Arrangements
From time to time, we enter intomitigate any collateral requests through ongoing business arrangements and transactionsby offsetting amounts that can give rise to contractual obligations and off-balance sheet commitments. Asthe counterparty owes us. Any posting of December 31, 2016, these arrangements and transactions included (i) operating lease agreements, (ii) volumetric production payments (VPPs) (to purchase production and pay related production expenses and taxes in the future), (iii) open purchase commitments, (iv) open delivery commitments, (v) open drilling commitments, (vi) undrawncollateral consisting of cash or letters of credit (vii) open gatheringreduces availability under our revolving credit facility and transportation commitments,negatively impacts our liquidity.
Sources of Funds
The following table presents the sources of our cash and (viii) various other commitments we enter into incash equivalents for the ordinary course of business which could result in a future cash obligation.years ended December 31, 2019, 2018 and 2017. See Notes 4 and 12Note 3 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of commitmentsdivestitures of oil and VPPs, respectively.

The table below summarizes our contractual cash obligations for both recorded obligations and certain off-balance sheet arrangements and commitments as of December 31, 2016.natural gas assets.
  Payments Due By Period
  Total 
Less Than
1 Year
 1-3 Years 3-5 Years 
More Than
5 Years
  ($ in millions)
Long-term debt:          
Principal(a)
 $9,989
 $506
 $644
 $3,381
 $5,458
Interest 3,969
 664
 1,300
 1,101
 904
Operating lease obligations(b)
 9
 4
 5
 
 
Operating commitments(c)
 11,269
 1,578
 2,421
 2,045
 5,225
Unrecognized tax benefits(d)
 97
 
 
 97
 
Standby letters of credit 1,036
 1,036
 
 
 
Other 29
 6
 8
 9
 6
Total contractual cash obligations(e)
 $26,398
 $3,794
 $4,378
 $6,633
 $11,593
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Cash provided by operating activities $1,623
 $1,730
 $475
Proceeds from issuances of debt, net 1,563
 1,236
 1,585
Proceeds from revolving credit facility borrowings, net 496
 
 781
Proceeds from divestitures of proved and unproved properties, net 130
 2,231
 1,249
Proceeds from sales of other property and equipment, net 6
 147
 55
Proceeds from sales of investments 
 74
 
Total sources of cash and cash equivalents $3,818
 $5,418
 $4,145

(a)Total principal amount of debt maturities, using the earliest demand repurchase date for contingent convertible senior notes.
(b)See Note 4 of the notes to our consolidated financial statements included in Item 8 of this report for a description of our operating lease obligations.
(c)See Note 4 of the notes to our consolidated financial statements included in Item 8 of this report for a description of gathering, processing and transportation agreements, drilling contracts and pressure pumping contracts.
(d)See Note 6 of the notes to our consolidated financial statements included in Item 8 of this report for a description of unrecognized tax benefits.
(e)This table does not include derivative liabilities or the estimated discounted liability for future dismantlement, abandonment and restoration costs of oil and natural gas properties. See Notes 11 and 20, respectively, of the notes to our consolidated financial statements included in Item 8 of this report for more information on our derivatives and asset retirement obligations. This table also does not include our costs to produce reserves attributable to non-expense-bearing royalty and other interests in our properties, including VPPs, which are discussed below.
AsCash Flow from Operating Activities
Cash provided by operating activities was $1.623 billion, $1.730 billion and $475 million in 2019, 2018 and 2017, respectively. The decrease in 2019 is primarily the operatorresult of the properties from which VPP volumes have been sold, we bear the cost of producing the reserves attributable to these interests, which we include as a component of production expenses and production taxes in our consolidated statements of operations in the periods these costs are incurred. As with all non-expense-bearing royalty interests, volumes conveyed in a VPP transaction are excluded from our estimated proved reserves; however, the estimated production expenses and taxes associated with VPP volumes expected to be delivered in future periods are included as a reduction of the future net cash flows attributable to our proved reserves for purposes of determining our full cost ceiling test for impairment purposes and in determining our standardized measure. The amount of VPP-related production expenses and taxes, based on cost levels as of December 31, 2016, pursuant to SEC reporting requirements, was estimated to be approximately $19 millionlower prices for the next twelve monthsoil, natural gas and $76 million over the remaining life on an undiscounted basis, or approximately $18 million and $67 million, respectively, on a discounted basis using an annual discount rate of 10%. Our commitment to bear the costs on any future production of VPP volumes is not reflected as a liability on our balance sheet. The costs that will apply in the future will depend on the actual production volumesNGL we sold as well as certain cash expenditures related to our WildHorse acquisition. The increase in 2018 is primarily the production costs and taxes in effect duringresult of higher prices for the periods in which production actually occurs, which could differ materially from our current and historical costs, and production may not occur at the times or in the quantities projected, or at all. We have committed to purchaseoil, natural gas and liquids producedNGL we sold. Changes in cash flow from operations are largely due to the same factors that are associated withaffect our VPP transactions. Production purchasednet income, excluding various non-cash items, such as depreciation, depletion and amortization, certain impairments, gains or losses on sales of fixed assets, deferred income taxes and mark-to-market changes in our derivative instruments. See further discussion below under these arrangements is based on market prices atResults of Operations.

Debt issuances
The following table reflects the timeproceeds received from issuances of production,debt in 2019, 2018 and the purchased natural gas and liquids are resold at market prices.
2017. See Notes 4 and 12Note 5 of the notes to our consolidated financial statements included in Item 8 of this report for further discussiondiscussion.
  Years Ended December 31,
  2019 2018 2017
  
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 
Net
Proceeds
 
Principal Amount
of Debt
Issued
 Net
Proceeds
  ($ in millions)
Term loan $1,500
 $1,455
 $
 $
 $
 $
Senior secured second lien notes 120
 108
 
 
 
 
Senior notes 
 
 1,250
 1,236
 1,600
 1,585
Total $1,620
 $1,563
 $1,250
 $1,236
 $1,600
 $1,585
Divestitures of commitmentsProved and VPPs, respectively.
Unproved Properties

Derivative Activities
Oil, Natural GasDuring 2019, we divested certain non-core assets for approximately $130 million. During 2018, we divested $2.231 billion of proved and NGL Derivatives
Our results of operations and cash flows are impacted by changes in market pricesunproved properties including $1.868 billion for oil, natural gas and NGL. To mitigate a portion of the exposure to adverse market changes, we have entered into various derivative instruments. Executive management is involved in all risk management activities and the Board of Directors reviews the Company's derivative program at its quarterly board meetings. We believe we have sufficient internal controls to prevent unauthorized trading. As of December 31, 2016, our oil, natural gas and NGL derivative instruments consisted of swaps, options, collars and basis protection swaps. Item 7A. Quantitative and Qualitative Disclosures About Market Risk contains a description of each of these instruments and gains and losses on oil, natural gas and NGL derivatives during 2016, 2015 and 2014. Although derivatives often fail to achieve 100% effectiveness for accounting purposes, we believe our derivative instruments continue to be highly effective in achieving our risk management objectives.
Our commodity derivative activities allow us to predict with greater certainty the effective prices we will receive for our hedged production. We closely monitor the fair value of our derivative contractsUtica Shale properties in Ohio. During 2017, we divested certain non-core assets for approximately $1.249 billion. Proceeds from these transactions were used to repay debt and may elect to settle a contract prior to its scheduled maturity date in order to lock in a gain or minimize a loss. Commodity markets are volatile and Chesapeake's derivative activities are dynamic.
Mark-to-market positions under commodity derivative contracts fluctuate with commodity prices. As described under Hedging Arrangements in fund our development program. See Note 113 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion.
Uses of Funds
The following table presents the counterparties’ and our obligation under certain of the bilateral hedging agreements must be secured by cash or letters of credit to the extent that any mark-to-market amounts owed to us or by us exceed defined thresholds. In 2016, certainuses of our counterparties that are also lenders under our revolving credit facility entered into derivative contracts to be secured by the same collateral that secures the revolving credit facility. This will allow us to reduce any letters of credit posted as security with those counterparties.
The estimated fair values of our oil, natural gascash and NGL derivative contracts as of December 31, 2016 and 2015 are provided below. See Item 7A. Quantitative and Qualitative Disclosures About Market Risk for additional information concerning the fair value of our oil and natural gas derivative instruments.
  December 31,
  2016 2015
  ($ in millions)
Derivative assets (liabilities):    
Oil fixed-price swaps $(140) $144
Oil call options (1) (7)
Natural gas fixed-price swaps (349) 229
Natural gas collars (9) 
Natural gas call options 
 (99)
Natural gas basis protection swaps (5) 
NGL fixed-price swaps 
 
Estimated fair value $(504) $267
Changes in the fair value of oil and natural gas derivative instruments designated as cash flow hedges, to the extent effective in offsetting cash flows attributable to the hedged commodities, and locked-in gains and losses of settled designated derivative contracts are recorded in accumulated other comprehensive income and are transferred to earnings in the month of related production. As of December 31, 2016, 2015 and 2014, accumulated other comprehensive income included unrealized losses, net of related tax effects, totaling $97 million, $113 million and $136 million, respectively, associated with commodity derivative contracts. Based upon the market prices at December 31, 2016, we expect to transfer approximately $22 million of net loss included in accumulated other comprehensive income to net income (loss) during the next 12 months. A detailed explanation of accounting for oil, natural gas and NGL derivatives appears under Application of Critical Accounting Policies – Derivatives elsewhere in this Item 7.

Interest Rate Derivatives
To mitigate a portion of our exposure to volatility in interest rates related to our senior notes and revolving credit facility, we enter into interest rate derivatives.
For interest rate derivative contracts designated as fair value hedges, changes in fair values of the derivatives are recorded on the consolidated balance sheets as assets or (liabilities), with corresponding offsetting adjustments to the debt's carrying value. Changes in the fair value of derivatives not designated as fair value hedges, which occur prior to their maturity (i.e., temporary fluctuations in mark-to-market values), are reported currently in the consolidated statements of operations as interest expense.
Gains or losses from interest rate derivative contracts are reflected as adjustments to interest expense on the consolidated statements of operations. The components of interest expenseequivalents for the years ended December 31, 2016, 20152019, 2018 and 2014 are presented below2017:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Oil and Natural Gas Expenditures:      
Drilling and completion costs $2,180
 $1,848
 $2,113
Acquisitions of proved and unproved properties 35
 128
 88
Total oil and natural gas expenditures 2,215
 1,976
 2,201
Other Uses of Cash and Cash Equivalents:      
Cash paid to purchase debt 1,073
 2,813
 2,592
Business combination, net 353
 
 
Payments on revolving credit facility borrowings, net 
 362
 
Extinguishment of other financing 
 122
 
Additions to other property and equipment 48
 21
 21
Cash paid for preferred stock dividends 91
 92
 183
Distributions to noncontrolling interest owners 4
 6
 8
Other 32
 27
 17
Total other uses of cash and cash equivalents 1,601
 3,443
 2,821
Total uses of cash and cash equivalents $3,816
 $5,419
 $5,022

Drilling and Completion Costs
Our drilling and completion costs increased in Results2019 compared to 2018 primarily as a result of Operations – Interest Expense,increased completion activity in our oil plays. We spud, completed, and connected wells at a detailed explanationhigher average working interest in 2019 compared to 2018 due to the divestiture of accountingthe Utica asset and the acquisition of the Brazos Valley asset. Our average operated rig count was 18 rigs and spud wells were 333 in 2019 compared to an average operated rig count of 17 rigs and 322 spud wells in 2018 and 17 rigs and 341 spud wells in 2017. We completed 370 operated wells in 2019 compared to 351 in 2018 and 401 in 2017.
Business Combination - Acquisition of WildHorse
In 2019, we acquired WildHorse for interest rate derivatives appears under Applicationapproximately 717.4 million shares of Critical Accounting Policies – Derivatives elsewhere in this Item 7.
Foreign Currency Derivatives
On December 6, 2006, we issued €600our common stock and $381 million less $28 million of 6.25% Euro-denominated Senior Notes due 2017. Concurrent with the issuancecash held by WildHorse as of the euro-denominated senior notes, we entered into cross currency swaps to mitigate our exposure to fluctuations in the euro relative to the dollar over the termacquisition date. See Note 3 of the notes. notes to our consolidated financial statements included in Item 1 of Part I of this report for further discussion of the acquisition.
Cash Paid to Purchase Debt
In May 2011,2019, we purchased and subsequently retired €256repurchased $698 million in aggregate principal amount of these senior notes following a tender offer, and we simultaneously unwound the cross currency swaps for the same principal amount. In December 2015, we exchanged and subsequently retired €42 million in aggregate principal amount of these senior notes in the private exchange described above, and we simultaneously unwound the cross currency swaps for the same principal amount. During 2016, in connection with our tender offers, we retired €56 million in aggregate principal amount of our 6.25% Euro-denominatedBVL Senior Notes for $693 million and retired our BVL revolving credit facility for $1.028 billion. We also repaid upon maturity $380 million principal amount of our Floating Rate Senior Notes due April 2019. In 2018, we used $2.813 billion of cash to repurchase $2.701 billion principal amount of debt. In 2017, we used $2.592 billion of cash to repurchase $2.389 billion principal amount of debt.
Extinguishment of Other Financing
In 2018, we repurchased previously conveyed overriding royalty interests (ORRIs) from the CHK Utica, L.L.C. investors and extinguished our obligation to convey future ORRIs to the investors for combined consideration of $199 million. The cash paid was bifurcated between extinguishment of the obligation and acquisition of the ORRI.
Dividends
We paid dividends of $91 million and $92 million on our preferred stock during 2019 and 2018, respectively, and we simultaneously unwoundpaid dividends of $183 million on our preferred stock during 2017, including $92 million of dividends in arrears that had been suspended throughout 2016. We eliminated common stock dividends in the cross currency swaps for2015 third quarter and do not intend to resume paying cash dividends on our common stock in the same principal amount at a cost of $13 million. A detailed explanation of accounting for foreign currency derivatives appears under Application of Critical Accounting Policies – Derivatives elsewhere in this Item 7.foreseeable future.


Results of Operations
General. For the year endedOil, Natural Gas and NGL Production and Average Sales Prices
  2019
  Oil Natural Gas NGL Total
  
mbbl
per day
 $/bbl 
mmcf
per day
 $/mcf 
mbbl
per day
 $/bbl 
mboe
per day
 % $/boe
Marcellus 
 
 946
 2.48
 
 
 158
 33
 14.88
Haynesville 
 
 702
 2.42
 
 
 117
 24
 14.50
Eagle Ford 58
 61.22
 153
 2.73
 19
 17.04
 102
 21
 41.72
Brazos Valley 33
 59.29
 49
 1.79
 5
 8.04
 47
 10
 44.96
Powder River Basin 19
 54.28
 86
 2.47
 5
 16.63
 38
 8
 34.31
Mid-Continent 8
 55.69
 57
 2.13
 4
 18.02
 21
 4
 29.91
Retained assets(a)
 118
 59.16
 1,993
 2.45
 33
 15.62
 483
 100
 25.57
Divested assets(b)
 
 
 2
 0.40
 
 
 1
 
 17.55
Total 118
 59.16
 1,995
 2.45
 33
 15.62
 484
 100% 25.57
                   
  2018
  Oil Natural Gas NGL Total
  
mbbl
per day
 $/bbl 
mmcf
per day
 $/mcf 
mbbl
per day
 $/bbl 
mboe
per day
 % $/boe
Marcellus 
 
 828
 3.06
 
 
 138
 26
 18.38
Haynesville 
 
 788
 2.90
 
 
 131
 25
 17.42
Eagle Ford 60
 69.02
 136
 3.46
 20
 25.59
 102
 20
 50.01
Powder River Basin 11
 63.36
 64
 2.90
 4
 26.83
 25
 5
 38.12
Mid-Continent 9
 64.17
 60
 2.77
 4
 26.50
 24
 5
 36.61
Retained assets(a)
 80
 67.72
 1,876
 3.01
 28
 25.90
 420
 81
 27.97
Divested assets(b)
 10
 63.54
 402
 2.90
 24
 27.21
 101
 19
 24.37
Total 90
 67.25
 2,278
 2.99
 52
 26.50
 521
 100% 27.27
                   
  2017
  Oil Natural Gas NGL Total
  
mbbl
per day
 $/bbl 
mmcf
per day
 $/mcf 
mbbl
per day
 $/bbl 
mboe
per day
 % $/boe
Marcellus 
 
 804
 2.45
 
 
 134
 25
 14.67
Haynesville 
 
 784
 2.85
 
 
 131
 24
 17.10
Eagle Ford 58
 52.37
 141
 3.31
 18
 22.98
 100
 18
 39.33
Powder River Basin 6
 50.06
 37
 3.01
 3
 27.37
 15
 3
 32.52
Mid-Continent 8
 49.26
 66
 2.79
 5
 23.10
 23
 4
 28.92
Retained assets(a)
 72
 51.82
 1,832
 2.71
 26
 23.42
 403
 74
 23.05
Divested assets(b)
 18
 47.83
 574
 2.92
 31
 22.98
 145
 26
 22.41
Total 90
 51.03
 2,406
 2.76
 57
 23.18
 548
 100% 22.88

(a) Includes assets retained as of December 31, 2016, Chesapeake had a net loss of $4.399 billion, or $6.45 per diluted common share, on total revenues of $7.872 billion. This compares to a net loss of $14.635 billion, or $22.43 per diluted common share, on total revenues of $12.764 billion for the year ended December 31, 2015 and net income of $2.056 billion, or $1.87 per diluted share, on total revenues of $23.125 billion for the year ended December 31, 2014. The net loss in 2016 was primarily driven by non-cash impairment of oil and natural gas properties and impairments of fixed assets and other while the net loss in 2015 was primarily driven by non-cash impairments of our oil and natural gas properties. See Impairment of Oil and Natural Gas Properties and Impairments of Fixed Assets and Other below. The decreases in total revenues in 2016 and 2015 were primarily driven by decreases in the average realized prices we received for oil and natural gas production, lower production volumes, increased unrealized hedging losses and a decrease in the volumes sold and the prices received by our marketing affiliate on behalf of third-party producers.2019.
(b)Divested assets include certain Utica assets in Ohio in 2018 and Haynesville assets in 2017 as well as certain Mid-Continent assets in both 2018 and 2017.

Oil, Natural Gas and NGL Sales
  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions)
Oil $2,543
 16 % $2,201
 32% $1,668
Natural gas 1,782
 (28)% 2,486
 3% 2,422
NGL 192
 (62)% 502
 4% 484
Oil, natural gas and NGL sales $4,517
 (13)% $5,189
 13% $4,574
2019 vs. 2018. During 2016,Oil revenues increase of $342 million is primarily attributable to increased production volumes through the acquisition of WildHorse offset by a decrease in prices. Increased oil volumes resulted in a $605 million increase offset by a decrease in prices resulting in a $263 million decrease in revenues. Natural gas and NGL revenues decrease of $1.014 billion is primarily attributable to a decrease in natural gas and NGL sales were $3.288 billion comparedprices and a decrease in production volumes primarily due to $5.391 billiondivestiture activity. Decreased natural gas and NGL prices and production volumes resulted in 2015a $650 million and $10.354 billion in 2014. In 2016, Chesapeake sold 233 mmboe for $3.866 billion at a weighted average price of $16.63 per boe (excluding the effect of derivatives), compared$364 million decrease to 248 mmboe sold in 2015 for $4.767 billion at a weighted average price of $19.23 per boe (excluding the effect of derivatives) and 258 mmboe sold in 2014 for $9.336 billion at a weighted average price of $36.21 per boe (excluding the effect of derivatives)revenues, respectively.
2018 vs. 2017. The decreaseincrease in the price received per boe in 2016 compared to 20152018 resulted in a $606an $836 million decreaseincrease in revenues, and decreased sales volumes resulted in a $295$221 million decrease in revenues, for a total decreasenet increase in revenues of $901 million (excluding the effect of derivatives).$615 million.
For 2016, our average price received per barrel of oil (excluding the effect of derivatives) was $40.65, compared to $45.77 in 2015 and $89.41 in 2014. Natural gas prices received per mcf (excluding the effect of derivatives) were $2.05, $2.31 and $4.14 in 2016, 2015 and 2014, respectively. NGL prices received per barrel (excluding the effect of derivatives) were $14.76, $14.06 and $30.95 in 2016, 2015 and 2014, respectively.
Gains and losses from our oil and natural gas derivatives resulted in a net decrease in oil, natural gas and NGL revenues of $578 million in 2016 and net increases of $624 million and $1.018 billion in 2015 and 2014, respectively. See Item 7A. Quantitative and Qualitative Disclosures About Market Risk of this report for a complete listing of all of our derivative instruments as of December 31, 2016.
A change in oil, natural gas and NGL prices has a significant impact on our revenues and cash flows. Assuming our 2016 production levels and without considering the effect of derivatives, an increase or decrease of $1.00 per barrel of oil sold would result in an increase or decrease in 2016 revenues and cash flows of approximately $33 million and $32 million, respectively, an increase or decrease of $0.10 per mcf of natural gas sold would result in an increase or decrease in 2016 revenues and cash flows of approximately $105 million and $104 million, respectively, and an increase or decrease of $1.00 per barrel of NGL sold would result in an increase or decrease in 2016 revenues and cash flows of $24 million.

The following tables show production and average sales prices received by our operating divisions for 2016, 2015 and 2014:
  2016
  Oil Natural Gas NGL Total
  (mmbbl) 
($/bbl)(a)
 (bcf) 
($/mcf)(a) 
 (mmbbl) 
($/bbl)(a) 
 (mmboe) % 
($/boe)(a)
Southern(b)
 26.4
 41.84
 537.1
 2.20
 11.3
 14.77
 127.3
 55
 19.29
Northern(c)
 6.8
 36.01
 512.4
 1.90
 13.1
 14.75
 105.3
 45
 13.40
Total 33.2
 40.65
 1,049.5
 2.05
 24.4
 14.76
 232.6
 100% 16.63
                   
  2015
  Oil Natural Gas NGL Total
  (mmbbl) 
($/bbl)(a)
 (bcf) 
($/mcf)(a) 
 (mmbbl) 
($/bbl)(a)
 (mmboe) % 
($/boe)(a)
Southern(b)
 33.4
 47.33
 573.8
 2.52
 14.9
 13.13
 143.9
 58
 22.40
Northern(c)
 8.2
 39.45
 496.0
 2.06
 13.1
 15.12
 104.0
 42
 14.85
Total 41.6
 45.77
 1,069.8
 2.31
 28.0
 14.06
 247.9
 100% 19.23
                   
  2014
  Oil Natural Gas NGL Total
  (mmbbl) 
($/bbl)(a)
 (bcf) 
($/mcf)(a) 
 (mmbbl) 
($/bbl)(a)
 (mmboe) % 
($/boe)(a)
Southern(b)
 35.3
 91.15
 580.7
 4.20
 16.9
 32.18
 148.9
 58
 41.62
Northern(c)
 7.0
 80.15
 514.3
 4.08
 16.2
 29.56
 108.9
 42
 28.81
Total 42.3
 89.41
 1,095.0
 4.14
 33.1
 30.95
 257.8
 100% 36.21

(a)Average sales prices exclude gains (losses) on derivatives.
(b)Our Southern Division includes the Eagle Ford and Anadarko Basin liquids plays and the Haynesville/Bossier and Barnett (prior to October 31, 2016) natural gas shale plays. The Eagle Ford Shale accounted for approximately 33% of our estimated proved reserves by volume as of December 31, 2016. Eagle Ford Shale production for 2016, 2015 and 2014 was 35.4 mmboe, 38.5 mmboe and 35.4 mmboe, respectively.
(c)Our Northern Division includes the Utica and Powder River liquids plays and the Marcellus natural gas play. The Utica Shale accounted for approximately 22% of our estimated proved reserves by volume as of December 31, 2016. Utica Shale production for 2016, 2015 and 2014 was 46.7 mmboe, 43.8 mmboe and 26.6 mmboe, respectively. The Marcellus Shale accounted for approximately 18% of our estimated proved reserves by volume as of December 31, 2016. Marcellus Shale production for 2016, 2015 and 2014 was 50.0 mmboe, 49.7 mmboe and 74.7 mmboe, respectively.
Our average daily production of 635 mboe for 2016 consisted of approximately 90,800 bbls of oil (14% on an oil equivalent basis), approximately 2.9 bcf of natural gas (75% on an oil equivalent basis) and approximately 66,700 bbls of NGL (11% on an oil equivalent basis). Oil production decreased by 20% year over year primarily as a result of the sale of certain of our Mid-Continent assets in 2016 and 2015 as well as a significant reduction in drilling activity. Natural gas production decreased by 2% and NGL production decreased by 13%.
Excluding the impact of derivatives, our percentage of revenues from oil, natural gas and NGL is shown in the following table:
  Years Ended December 31,
  2016 2015 2014
Oil 35
 40
 40
Natural gas 56
 52
 49
NGL 9
 8
 11
  Total 100% 100% 100%

Marketing, Gathering and Compression Revenues and Expenses. Marketing, gathering and compression revenues consist of third-party revenues as well as fair value adjustments on our supply contract derivatives (see Note 119 of the notes to our consolidated financial statements included in Item 8 of this report for additional information on our supply contract derivatives). Expenses relateda complete discussion of oil, natural gas and NGL sales.
Oil, Natural Gas and NGL Derivatives
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Oil derivatives – realized gains (losses) $36
 $(321) $70
Oil derivatives – unrealized gains (losses) (248) 445
 (134)
Total gains (losses) on oil derivatives (212) 124
 (64)
       
Natural gas derivatives – realized gains (losses) 114
 7
 (9)
Natural gas derivatives – unrealized gains (losses) 103
 (154) 489
Total gains (losses) on natural gas derivatives 217
 (147) 480
       
NGL derivatives – realized gains (losses) 
 (13) (4)
NGL derivatives – unrealized gains (losses) 
 2
 (1)
Total gains (losses) on NGL derivatives 
 (11) (5)
Total gains (losses) on oil, natural gas and NGL derivatives $5
 $(34) $411
See Note 14 of the notes to our marketing, gathering and compression operations consistconsolidated financial statements included in Item 8 of third-party expenses and exclude depreciation and amortization, general and administrative expenses, impairments of fixed assets and other, net gains or losses on sales of fixed assets and interest expense. See Depreciation and Amortization of Other Assets below for the depreciation and amortization recorded on our marketing, gathering and compression assets. We recognized $4.584 billion in marketing, gathering and compression revenues in 2016, of which $146 million related to cash proceeds from the sale of a long-term natural gas supply contract to a third party, offset by the reversal of cumulative unrealized gains of $297 million associated with the natural gas supply contract, with corresponding expenses of $4.778 billion,this report for a net loss of $194 million. This compares to revenues of $7.373 billion, of which $296 million related to unrealized gains on the fair valuecomplete discussion of our supply contract derivative with corresponding expenses of $7.130 billion, for a net margin of $243 million in 2015activity.

Marketing Revenues and Expenses
  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions)
Marketing revenues $3,967
 (22)% $5,076
 13% $4,511
Marketing expenses 4,003
 (22)% 5,158
 12% 4,598
Marketing margin $(36) 56 % $(82) 6% $(87)
2019 vs. 2018. Marketing revenues of $12.225 billion, expenses of $12.236 billion and a net loss before depreciation of $11 million in 2014. Revenues and expenses decreased in 2016 compared to 2015 and 20142019 primarily as a result of lowerdecreased oil, natural gas and NGL prices paid and received in our marketing operations. TheMarketing margin increase in 2015 as compared to 2014 was primarily the result of an unrealized gain on the fair value adjustment on our supply contract derivatives, partially offset by cost increases on certain sales contracts with third parties entered into to help meet certain of our oil pipeline and other commitments and by lower compression marginimproved as a result of improved pricing on oil inventory and better margins on non-equity gas and oil transactions offset by an increase in pipeline deficiency fees.
2018 vs. 2017. Marketing revenues and expenses increased in 2018 primarily as a result of increased oil, natural gas and NGL prices received in our marketing operations. Marketing margin was negatively impacted by downstream pipeline delivery commitments.
Other Revenue
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Other revenue $63
 $63
 $67
Other revenue primarily relates to the amortization of deferred VPP revenue. Our remaining deferred revenue balance of $64 million will be amortized on a straight-line basis through February 2021. See Note 7 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of our VPPs.
Gains (Losses) on Sales of Assets
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Gains (losses) on sales of assets $43
 $(264) $476
In 2019, we received proceeds of approximately $136 million, net of post-closing adjustments, and recognized a net gain of approximately $43 million, primarily for the sale of a significant portionnon-core oil and natural gas properties.
In 2018, we sold all of our compressionnet acres in the Utica Shale operating area located in Ohio along with related property and equipment for net proceeds of $1.868 billion to Encino and recognized a loss of $273 million associated with the transaction. Also in 2018, we sold portions of our acreage, producing properties and other related property and equipment in the Mid-Continent, including our Mississippian Lime assets, for approximately $491 million, subject to certain customary closing adjustments, and we recognized a gain of approximately $12 million associated with the transactions.
In 2017, we sold portions of our acreage and producing properties in 2014our Haynesville Shale operating area in northern Louisiana for approximately $915 million, subject to certain customary closing adjustments, and 2015.recognized a gain of approximately $326 million.
Oilfield Services Revenues and Expenses. Our oilfield services consistedSee Note 3 of third-party revenues and expenses relatedthe notes to our former oilfield services operations and excluded depreciation and amortization, general and administrative expenses, impairmentsconsolidated financial statements included in Item 8 of fixed assets and other, net gains or losses on salesthis report for further discussion of fixed assets and interest expense. See Depreciation and Amortization of Other Assets below for the depreciation and amortization recorded on our oilfield services assets in 2014. Chesapeake recognized revenues of $546 million, expenses of $431 million with a net margin before depreciation of $115 million in 2014. As a result of the spin-off of our oilfield services business in June 2014, we did not have oilfield services revenues and expenses in 2016 and 2015.these transactions.

Oil, Natural Gas and NGL Production Expenses
  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions)
Oil, natural gas and NGL production expenses          
Marcellus $32
 (6)% $34
 21 % $28
Haynesville 47
 (18)% 57
 8 % 53
Eagle Ford 180
 (1)% 181
 (3)% 187
Brazos Valley 96
 n/a
 
 n/a
 
Powder River Basin 71
 45 % 49
 69 % 29
Mid-Continent 94
 (4)% 98
 (8)% 107
Retained Assets(a)
 520
 24 % 419
 4 % 404
Divested Assets(b)
 
 (100)% 55
 (51)% 113
Total oil, natural gas and NGL production expenses $520
 10 % $474
 (8)% $517
           
  ($ per boe)
Oil, natural gas and NGL production expenses          
Marcellus $0.56
 (16)% $0.67
 16 % $0.58
Haynesville $1.10
 (8)% $1.20
 9 % $1.10
Eagle Ford $4.79
 (2)% $4.87
 (5)% $5.13
Brazos Valley $5.62
 n/a
 $
 n/a
 $
Powder River Basin $5.13
 (4)% $5.34
 (3)% $5.51
Mid-Continent $12.22
 8 % $11.31
 (8)% $12.31
Retained Assets(a)
 $2.94
 8 % $2.73
 (1)% $2.75
Divested Assets(b)
 $
 (100)% $1.49
 (30)% $2.14
Total oil, natural gas and NGL production expenses per boe $2.94
 18 % $2.50
 (3)% $2.59

(a) Includes assets retained as of December 31, 2019.
(b)Divested assets include certain Utica assets in Ohio in 2018 and Haynesville assets in 2017 as well as certain Mid-Continent assets in both 2018 and 2017.
2019 vs. 2018. Production expenses, which include lifting costs and ad valorem taxes, were $710 million in 2016, compared to $1.046 billion in 2015 and $1.208 billion in 2014. On a unit-of-production basis, production expenses were $3.05 per boe in 2016 compared to $4.22 per boe in 2015 and $4.69 per boe in 2014. The absolute and per unit decrease in 2016increase was primarily the result of a reductionthe acquisition of WildHorse in repair2019 and maintenance expenses as well as operating efficiencies across mostincreased production volumes in the Powder River Basin, partially offset by the sale of our operating areas.certain oil and natural gas properties in 2018 and 2019. Production expenses in 2016, 2015 and 20142019 included approximately $44$11 million $104 million and $157 million, or $0.19, $0.42 and $0.61 per boe, respectively, associated with VPP production volumes. In connection
2018 vs. 2017. The absolute increase for retained properties was the result of increased production volumes related to our retained assets primarily in the Powder River Basin. Production expenses in 2018 included approximately $15 million associated with certain 2016 divestitures, we purchased the remaining oil and natural gas interests previously sold in connection with five of our VPPs, and a majority of these repurchased oil and natural gas interests were subsequently sold. In addition, one of our VPPs expired in 2015. VPP production volumes.
We anticipate a continued decrease in production expenses associated with VPP production volumes as the contractually scheduled volumes under our remaining VPP agreement decrease and operating efficiencies generally improve.
The following table shows our production expenses (excluding ad valorem taxes) by operating division and our ad valorem tax expenses for 2016, 2015 and 2014:
  2016 2015 2014
  
Production
Expenses
 $/boe 
Production
Expenses
 $/boe 
Production
Expenses
 $/boe
  ($ in millions, except per unit)
Southern $498
 3.92
 $771
 5.36
 $882
 5.92
Northern 157
 1.49
 188
 1.81
 229
 2.10
  655
 2.81
 959
 3.87
 1,111
 4.31
             
Ad valorem tax 55
 0.24
 87
 0.35
 97
 0.38
             
    Total $710
 3.05
 $1,046
 4.22
 $1,208
 4.69


Oil, Natural Gas, and NGL Gathering, Processing and Transportation Expenses. Oil, natural gas and NGL gathering, processing and transportation expenses were $1.855 billion in 2016 compared to $2.119 billion in 2015 and $2.174 billion in 2014. On a unit-of-production basis, gathering, processing and transportation expenses were $7.98 per boe in 2016 compared to $8.55 per boe in 2015 and $8.43 per boe in 2014. Certain of our gathering agreements required us to pay the service provider a fee for any production shortfall below certain annual minimum gathering volume commitments. These fees amounted to $171 million in 2015 and $120 million in 2014, or $0.69 and $0.47 per boe, respectively. We were not required to pay any shortfall fees in 2016.
A summary of oil, natural gas and NGL gathering, processing and transportation expenses by product is shown below.Expenses
 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions, except per unit)
Oil, natural gas and NGL gathering, processing and transportation expenses $1,082
 $1,398
 $1,471
Oil ($ per bbl) $3.61
 $3.38
 $2.86
 $3.20
 $4.30
 $3.94
Natural gas ($ per mcf) $1.47
 $1.66
 $1.68
 $1.21
 $1.32
 $1.34
NGL ($ per bbl) $7.83
 $7.37
 $6.59
 $5.32
 $8.37
 $7.88
Total ($ per boe) $6.13
 $7.35
 $7.36
Production Taxes2019 vs. 2018. Production taxes were $74 million in 2016 compared to $99 million in 2015 and $232 million in 2014. On a unit-of-production basis, production taxes were $0.32 per boe in 2016 compared to $0.40 per boe in 2015 and $0.90 per boe in 2014. In general, production taxes are calculated using value-based formulas that produce lower per unit costs when oil, natural gas and NGL prices are lower. The absolute and per unit decrease for oil and natural gas gathering, processing and transportation expenses was primarily due to the divestiture of our Utica Shale properties in production taxes in 20162018.
2018 vs. 2017. The absolute and 2015per unit decrease for oil and natural gas gathering, processing and transportation expenses was primarily due to lower gathering fees associated with restructured midstream contracts, lower volume commitments on downstream pipelines and certain 2017 and 2018 divestitures.
Severance and Ad Valorem Taxes
  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions, except per unit)
Severance taxes $144
 16% $124
 39% $89
Ad valorem taxes 80
 23% 65
 44% 45
Severance and ad valorem taxes $224
 19% $189
 41% $134
           
Severance taxes per boe $0.81
 25% $0.65
 48% $0.44
Ad valorem taxes per boe 0.46
 35% 0.34
 55% 0.22
Severance and ad valorem taxes per boe $1.27
 28% $0.99
 50% $0.66
2019 vs. 2018. The absolute and per unit increase in severance taxes was primarily due to the addition of Texas assets through our acquisition of WildHorse, expiring tax exemptions in Haynesville and the divestiture of Ohio assets that were taxed at a lower rate. The absolute and per unit increase in ad valorem taxes was primarily due to a change in the mix of taxable oil and natural gas reserves by state. The addition of Texas assets through our acquisition of WildHorse increased the amount of oil and natural gas reserves subject to ad valorem tax whereas the divestiture of Ohio assets decreased the amount of oil and gas reserves not subject to ad valorem tax.
2018 vs. 2017. The absolute and per unit increase in severance taxes was primarily due to higher prices received for our oil, natural gas and NGL. ProductionNGL production, offset by lower production volumes. The total per unit increase in ad valorem taxes was the result of increased ad valorem tax primarily due to higher prices received for our oil, natural gas and NGL production.
Exploration Expenses
  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions, except per unit)
Impairments of unproved properties $32
 (46)% $59
 (72)% $214
Dry hole expense 25
 (32)% 37
 n/a
 
Geological and geophysical expense and other 27
 (59)% 66
 214 % 21
Exploration expense $84
 (48)% $162
 (31)% $235

2019 vs. 2018. The decrease in 2016, 2015exploration expense was primarily due to fewer impairments of unproved properties and 2014 included approximately $3 million $2 millionfewer exploratory geological and $16 million respectively, or $0.01, $0.01geophysical projects. In addition, we recognized a reduction in delay rental expense primarily due to the divested Utica operating area in 2018.
2018 vs. 2017. The decrease in exploration expense was primarily due to fewer impairments of unproved properties, partially offset by an increase in dry hole expense and $0.06 per boe, respectively, associated with VPP production volumes.exploratory geological and geophysical projects.
General and Administrative Expenses
  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions, except per unit)
Gross overhead $682
 (4)% $714
 (10)% $791
Allocated to production expenses (132) (6)% (141) (20)% (177)
Allocated to marketing expenses (14) (30)% (20) (31)% (29)
Allocated to exploration expenses (11) 10 % (10) 67 % (6)
Allocated to sand mine expense (7)  % 
  % 
Capitalized general and administrative expenses (56) 4 % (54) (10)% (60)
Reimbursed from third parties (147) (5)% (154) (17)% (186)
General and administrative expenses, net $315
 (6)% $335
 1 % $333
           
General and administrative expenses, net per boe $1.78
 1 % $1.76
 5 % $1.67
2019 vs. 2018. The decrease in gross overhead expense is primarily due to compensation reductions in our long-term incentives that are tied to the Company’s equity performance.
2018 vs. 2017. GeneralGross overhead decreased primarily due to our reduction in workforce. The absolute and administrativeper unit net expense increase was primarily due to less overhead allocated to production expenses, were $240 million in 2016, $235 million in 2015marketing expenses and $322 million in 2014, or $1.03, $0.95 and $1.25 per boe, respectively. Lowercapitalized general and administrative expenses in 2016 and 2015 were due primarily to reduced overhead as a result of our workforce reduction in the 2015 third quarter and our continuing efforts to reduce other administrative expenses,costs, as well as the spin-off of our oilfield services businesslower producing overhead reimbursements from third party working interest owners, due to certain divestitures in June 2014.2017 and 2018.
Chesapeake follows the full cost method of accounting under which all costs associated with oil and natural gas property acquisition, drilling and completion activities are capitalized. We capitalize internal costs that can be directly identified with the acquisition of leasehold, as well as drilling and completion activities, and do not include any costs related to production, general corporate overhead or similar activities. We capitalized $148 million, $196 million and $230 million of internal costs in 2016, 2015 and 2014, respectively, directly related to our leasehold acquisition and drilling and completion efforts.
Restructuring and Other Termination Costs. We recorded $6Costs. In 2019, we incurred a charge of $12 million $36 million and $7 million in 2016, 2015 and 2014, respectively, for restructuring and other termination costs. The 2016 amount was primarily related to theone-time termination benefits for certain employees. In January 2018, we underwent a reduction in workforce in connection with the restructuringimpacting approximately 13% of employees across all functions, primarily on our compressor manufacturing subsidiary and the reductions of workforce in connection with certain of our divestitures. In 2015, we reduced our workforce by approximately 15% as part of an overall plan to reduce costs and better align our workforce with the needs of our business and current oil and natural gas commodity prices.Oklahoma City campus. In connection with the reduction, we incurred a total charge of approximately $55$38 million in 2018 for one-time termination benefits, allbenefits. The charge consisted of which were paid$33 million in cashsalary and severance expense and $5 million in the fourth quarter of 2015. Additionally, the 2015 and 2014 amounts included negative fair value adjustments to PSUs granted to former executivesother termination benefits. See Note 21 of the Company, which werenotes to our consolidated financial statements included in Item 8 of this report for a discussion of our restructuring and termination costs.
Provision for Legal Contingencies, Net
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Provision for legal contingencies, net $19
 $26
 $(38)
The 2019 and the 2018 amounts consist of accruals for loss contingencies related to royalty claims. The 2017 amount consists of the recovery of a legal settlement, partially offset by accruals for loss contingencies primarily related to royalty claims. See Note 6 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of royalty claims.

Depreciation, Depletion and Amortization
  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions, except per unit)
Depreciation, depletion and amortization $2,264
 30% $1,737
 2% $1,697
Depreciation, depletion and amortization per boe $12.82
 40% $9.13
 8% $8.49

The absolute and per unit increases in 2018 and 2019 are primarily the result of a decrease in the trading pricehigher depletion rate. The depletion rate increases are driven by a higher concentration of our common stock.production mix and capital deployment in liquids-rich operating areas, which generally involve higher finding costs per boe relative to gas-rich operating areas. The 2014 expensedepletion rate in 2019 also includes charges incurredreflects our acquisition of WildHorse assets, located in connection witha liquids-rich operating area.
Impairments
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Impairments due to lower forecasted commodity prices $8
 $23
 $27
Impairments due to reduction in future development(a)
 
 
 560
Impairments due to anticipated sale 
 55
 222
Total impairments of oil and natural gas properties 8
 78
 809
Impairments of other fixed assets 3
 53
 5
Total impairments $11
 $131
 $814

(a)The impairment was the result of an updated development plan in 2017, which included a removal of PUDs from properties in the process of being divested in the Mid-Continent operating area.
Other fixed assets. In 2018, we recorded a $45 million impairment related to 890 compressors and $8 million for other property and equipment for the spin-off of our oilfield services businessdifference between the fair value and senior management separations.carrying value. See Note 1819 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of our restructuring and other termination costs.impairments.
Other Operating Expense

  Years Ended December 31,
  2019 change 2018 change 2017
  ($ in millions)
Other operating expense $92
 n/a $
 (100)% $416
Provision for Legal Contingencies.In 2016, 2015 and 2014,2019, we recorded $123approximately $37 million $353of costs related to our acquisition of WildHorse which consisted of consulting fees, financial advisory fees, legal fees and travel and lodging expenses. In addition, we recorded approximately $38 million of severance expense as a result of the acquisition of WildHorse. A majority of the WildHorse executives and $234 million, respectively, for legal contingencies. employees were terminated at the time of acquisition. These executives and employees were entitled to severance benefits in accordance with existing employment agreements.
The 2016 provision2017 amount consists of accruals for loss contingencies primarily relateddiscrete costs incurred to royalty claims.terminate various gathering and transportation agreements, including those associated with oil and natural gas asset divestitures. See Note 420 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of royalty claims. The 2015 amount includes $25 million related to the April 2015 resolution of litigation we were defending against the state of Michigan and $339 million related to litigation involving the early redemption of our 2019 notes. See Note 4 of the notes to our consolidated financial statements included in Item 8 of this report for discussion of ongoing 2019 Notes litigation. Additionally, in 2015, we reduced our royalty provision amount from $119 million to $109 million to reflect the amount paid in 2015 to settle litigation with Oklahoma royalty owners, net of claimants that opted out. In 2014, we accrued $134 million of loss contingencies related to royalty claims, and a $100 million loss contingency for litigation regarding our 2019 Notes litigation.other operating expense.
Oil, Natural Gas and NGL Depreciation, Depletion and Amortization. Depreciation, depletion and amortization (DD&A) of oil, natural gas and NGL properties was $1.003 billion, $2.099 billion and $2.683 billion in 2016, 2015 and 2014, respectively. The average DD&A rate per boe, which is a function of capitalized costs, future development costs and the related underlying reserves in the periods presented, was $4.31, $8.47 and $10.41 per boe in 2016, 2015 and 2014, respectively. The absolute and per unit decrease in 2016 was the result of a lower amortization base, which is due to the 2016 and 2015 impairments of our oil and natural gas properties. The absolute and per unit decrease in 2015 was the result of a lower amortization base as a result of our impairment of oil and gas properties in 2015 and a reduction in our estimated future development costs as a result of drilling efficiencies and a forecasted reduction in our future capital plans, partially offset by an approximate 39% reduction in our reserve base driven primarily by lower prices used in calculating our estimated reserves.
Depreciation and Amortization of Other Assets. Depreciation and amortization of other assets was $104 million in 2016 compared to $130 million in 2015 and $232 million in 2014. On a unit-of-production basis, depreciation and amortization of other assets was $0.45 per boe in 2016 compared to $0.53 per boe in 2015 and $0.90 per boe in 2014. Property and equipment costs are depreciated on a straight-line basis over the estimated useful lives of the assets. In June 2014, we completed the spin-off of our oilfield services business and, therefore, did not incur oilfield services depreciation expense in 2016 or 2015 and will not incur this expense in future periods. In 2014, to the extent company-owned oilfield services equipment was used to drill and complete our wells, a substantial portion of the depreciation (i.e., the portion related to our utilization of the equipment) was capitalized in oil and natural gas properties as drilling and completion costs. The following table shows depreciation expense by asset class for the years ended December 31, 2016, 2015 and 2014 and the estimated useful lives of these assets.
Interest Expense
  Years Ended December 31, 
Estimated
Useful
Life
  2016 2015 2014 
  ($ in millions) (in years)
Buildings and improvements $38
 $39
 $42
 10 – 39
Natural gas compressors(a)
 24
 38
 37
 3 – 20
Computers and office equipment 20
 22
 32
 3 – 7
Vehicles 3
 10
 24
 0 – 7
Natural gas gathering systems and treating plants(a)
 7
 11
 12
 20
Oilfield services equipment(b)
 
 
 74
 3 – 15
Other 12
 10
 11
 2 – 20
Total depreciation and amortization of other assets $104
 $130
 $232
  

(a)Included in our marketing, gathering and compression operating segment.
(b)Included in our former oilfield services operating segment.
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Interest expense on senior notes $578
 $591
 $551
Interest expense on term loan 4
 86
 127
Amortization of loan discount, issuance costs and other 3
 24
 40
Amortization of premium (5) (88) (138)
Interest expense on revolving credit facility 96
 37
 39
Realized gains on interest rate derivatives (5) (3) (3)
Unrealized losses on interest rate derivatives 4
 2
 4
Capitalized interest (24) (16) (19)
Total interest expense $651
 $633
 $601
       
Interest expense per boe $3.68
 $3.33
 $2.99
       
Average senior notes borrowings $7,857
 $8,160
 $7,714
Average credit facility borrowings $1,934
 $505
 $443
Average term loan borrowings $37
 $911
 $1,446

Impairment of Oil and Natural Gas Properties. Our oil and natural gas properties are subject to quarterly full cost ceiling tests. Under the ceiling test, capitalized costs, less accumulated amortization and related deferred income taxes, may not exceed an amount equal to the sum of the present value of estimated future net revenues (adjusted for cash flow hedges) less estimated future expenditures to be incurred in developing and producing the proved reserves, less any related income tax effects. For 2016 and 2015, capitalized costs of oil and natural gas properties exceeded the ceiling, resulting in impairments of the carrying value of our oil and natural gas properties of $2.564 billion and $18.238 billion, respectively.
As of December 31, 2016, the present value of estimated future net revenue of our proved reserves, discounted at an annual rate of 10%, was $4.405 billion. Estimated future net revenue represents the estimated future gross revenue to be generated from the production of proved reserves, net of estimated production, gathering, processing, transportation and future development costs, using prices and costs under existing economic conditions as of that date. The prices used in the present value calculation as of December 31, 2016 were $42.75 per bbl of oil and $2.49 per mcf of natural gas, before price differential adjustments.
Impairments of Fixed Assets and Other. In 2016, 2015 and 2014, we recognized $838 million, $194 million and $88 million, respectively, of fixed asset impairment losses and other charges. In 2016, we conveyed our interests in the Barnett Shale operating area located in north central Texas and simultaneously terminated most of our future commitments associated with this asset. In connection with this disposition, we recognized $361 million of charges related to the termination of natural gas gathering and transportation agreements. We also recognized an impairment charge of $284 million in 2016 related to other fixed assets sold in the divestiture. Also in 2016, we sold the majority of our upstream and midstream assets in the Devonian Shale located in West Virginia and Kentucky. We recognized an impairment charge of $142 million in 2016 related to other fixed assets sold in the divestiture. The 2015 amount consisted primarily of a $70 million settlement charge for a net acreage maintenance obligation to Total S.A. in our Barnett Shale joint venture, a $47 million loss contingency related to contract disputes, a $21 million impairment related to the sale of third-party rental compressors, a $22 million impairment of a note receivable and $7 million of charges incurred for terminating drilling contracts as a result of the decline in oil and natural gas prices. The 2014 amount consisted primarily of a $22 million charge for our Barnett Shale joint venture net acreage shortfall with Total and $64 million of impairments related to a gathering system, drilling rigs, natural gas compressors and buildings and land.
Net (Gains) Losses on Sales of Fixed Assets. In 2016, net gains on sales of fixed assets were $12 million compared to net losses of $4 million in 2015 and net gains of $199 million in 2014. The 2016 and 2015 amounts primarily related to the sale of gathering systems, buildings, land and other property and equipment. The 2014 amount primarily related to the sale of natural gas compressors and crude hauling assets. See Note 16 of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of our net (gains) losses on sales of fixed assets.

Interest Expense. Interest expense was $296 million in 2016 compared to $317 million in 2015 and $89 million in 2014 as follows:
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Interest expense on senior notes $588
 $682
 $704
Interest expense on term loan 46
 
 36
Amortization of loan discount, issuance costs and other 33
 62
 42
Amortization of premium associated with troubled debt restructuring (165) (3) 
Interest expense on revolving credit facilities 35
 12
 28
Realized gains on interest rate derivatives(a)
 (11) (6) (12)
Unrealized (gains) losses on interest rate derivatives(b)
 21
 (6) (72)
Capitalized interest (251) (424) (637)
Total interest expense $296
 $317
 $89
       
Average senior notes borrowings $8,749
 $11,705
 11,653
Average credit facilities borrowings $195
 $
 306
Average term loan borrowings $537
 $
 625

(a)Includes settlements related to the interest accrual for the period and the effect of (gains) losses on early-terminated trades. Settlements of early-terminated trades are reflected in realized (gains) losses over the original life of the hedged item.
(b)Includes changes in the fair value of open interest rate derivatives offset by amounts reclassified to realized (gains) losses during the period.
The 2016 and 2015 decreases in capitalized interest resulted from lower average balances of unproved oil and natural gas properties, the primary asset on which interest is capitalized. The 2016 decrease in interest expense on senior notes is due to the decrease in the average outstanding principal amount of senior notes. The 2016 increase in the amortization of premium associated with troubled debt restructuring is due to a full year of amortization on our second lien notes. See Note 3 of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of our debt refinancing. Interest expense, excluding unrealized gains or lossesinstruments.
Gains (Losses) on interest rate derivatives and net of amounts capitalized, was $1.18 per boe in 2016 compared to $1.30 per boe in 2015 and $0.63 per boe in 2014.Investments.
Losses on Investments. Losses on investments were $8 million, $96 million and $75 million in 2016, 2015 and 2014, respectively. In 2016, the losses were primarily related to our equity investment in Sundrop Fuels, Inc. (Sundrop). Losses on investments in 2015 and 2014 were primarily related to our equity investments in FTS International Inc. (FTS)(NYSE: FTSI). In 2018, FTS International, Inc. completed an initial public offering. Due to the offering, the ownership percentage of our equity method investment in FTSI decreased from approximately 29% to 24% and Sundrop.resulted in a gain of $78 million. In addition, we sold approximately 4.3 million shares of FTSI in the offering for net proceeds of approximately $74 million and recognized a gain of $61 million decreasing our ownership percentage to approximately 20%. We continue to hold approximately 22.0 million shares in the publicly traded company. In 2019, the hydraulic fracturing industry experienced challenging operating conditions resulting in the current fair value of our investment in FTSI falling below book value of $65 million and remaining below that value as of the end of the year. Based on FTSI’s 2019 operating results and FTSI’s share price of $1.04 per share as of December 31, 2019, we determined that the reduction in fair value is other-than-temporary, and recognized an impairment of our investment in FTSI of approximately $43 million. We will continue to monitor the hydraulic fracturing industry, FTSI operating results and FTSI share price for indicators that the reduction in fair value is other-than-temporary, which could result in an additional impairment of our investment in FTSI. See Note 1418 of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of our investments.
Impairment of InvestmentsJWH Midstream LLC (JWH). In 2016, 2015 and 2014,2019, in connection with the acquisition of WildHorse, we recognized impairments of investments of $119 million, $53 million and $5 million, respectively.obtained a 50% membership interest in JWH Midstream LLC (JWH). The 2016 amount consisted of an other-than-temporary impairmentcarrying value of our Sundrop investment. The 2015 amount consisted ofinvestment in JWH, which was being accounted for as an other-than-temporary impairment ofequity method investment, was approximately $17 million. In 2019, we paid approximately $7 million to terminate our FTS investment due to the extended decreaseinvolvement in the oil and natural gas pricing environment. The 2014 amountpartnership. This removed us from any future obligations related to an other miscellaneous investment. See Note 14this joint venture and, therefore, we impaired the full value of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of our investments.
Net Gain (Loss) on Sales of Investments. In 2016, we recorded a $10 million net loss on the sale of an investment compared to a $67 million net gain on the sales of investments in 2014. In 2016, we sold certain of our mineral interests and assigned our partnership interest in Mineral Acquisition Company I, L.P. to KKR Royalty Aggregator LLC. As a result of the transaction, we wrote off our equity investment and recognized a $10approximately $24 million loss. In 2014, we sold all of our interestimpairment expense in Chaparral Energy, Inc. for net cash proceeds of $209 million and recorded a $73 million gain related to the sale. In addition, we sold an equity investment in a natural gas trading and management firm for cash proceeds of $30 million and recorded a loss of $6 million associated with the transaction.2019.


Gains (Losses) on Purchases or Exchanges of Debt. In 2016 and 2015, we recorded gains of $236 million and $279 million, respectively, on purchases of debt and we recorded losses on purchases of debt of $197 million in 2014.
In 2016, we used the proceeds from our term loan facility, convertible notes issuance and senior notes issuance, together with cash on hand, to purchase and retire $1.451 billion principal amount of our senior notes and $708 million principal amount of our contingent convertible senior notes for an aggregate $2.078 billion pursuant to tender offers. Also, in 2016, we repurchased in the open market approximately $325 million principal amount of our senior notes for $300 million and $141 million principal amount of our contingent convertible senior notes for $86 million. Additionally, in 2016,2019, we privately negotiated exchanges of approximately $290$507 million principal amount of our outstanding senior notes for 53,923,925235,563,519 shares of our common stock and $287$186 million principal amount of our outstanding contingent convertible senior notes for 55,427,78273,389,094 shares of our common stock. We recorded an aggregate net gain of $236approximately $64 million associated with these debt repurchases andthe exchanges. Additionally, in various transactions throughout 2019, we repurchased approximately $698 million principal amount of the BVL Senior Notes, recognizing a net $10 million gain on the transactions.
In December 2015,2018, we privately exchanged newly issuedused the net proceeds from the issuance of our 2024 and 2026 senior notes, together with cash on hand and borrowings under the Chesapeake revolving credit facility, to repay in full $1.233 billion of borrowings under our secured term loan due 2021 for $1.285 billion, which included a $52 million make-whole premium. We recorded a loss of approximately $65 million associated with the repayment of the term loan, including the make-whole premium and the write-off of $13 million of associated deferred charges. Also, in 2018, we used the proceeds from the sale of our Utica assets in Ohio to redeem all of the $1.416 billion aggregate principal amount outstanding of our 8.00% Senior Secured Second Lien Notes due 2022 for certain outstanding senior unsecured notes and contingent convertible notes. For certain of the notes exchanged, we are accounting for these exchanges aswhich included a trouble debt restructuring (TDR). For exchanges classified as TDR, if the future undiscounted cash flows of the newly issued debt are less than the net carrying value of the original debt, a gain is recorded for the difference and the carrying value of the newly issued debt is adjusted to the future undiscounted cash flow amount and no interest expense is recorded going forward. For the remaining TDR exchanges, where the future undiscounted cash flows are greater than the net carrying value of the original debt, no gain is recognized and a new effective interest rate is established. Accordingly, we recognized a gain of $304$60 million in our consolidated statement of operations. Direct costs incurred for $29 million related to the notes exchange were also recognized. Additionally, we purchased in the open market approximately $119 million aggregate principal amount of our 3.25% Senior Notes due 2016 for cash.call premium. We recorded a gain of approximately $5$331 million associated with the repurchase.
In December 2014,redemption, including the realization of the remaining $391 million difference in principal and book value due to troubled debt restructuring accounting in 2015, offset by the make-whole premium of $60 million. Additionally, we entered into a new five-year $4.0 billion senior revolving credit facility to use for general corporate purposes. That credit facility replaced our then-existing $4.0 billion senior secured revolving credit facility that was scheduled to mature in December 2015. We recognized a loss of approximately $2 million in extinguishment costs related to former lenders under the terminated facility who were not continuing under the new facility. In 2014, we repaid the borrowings under and terminated our $2.0 billion term loan credit facility due 2017 and recorded a loss of approximately $90 million. Also in 2014,$3 million associated with certain deferred charges related to the Chesapeake revolving credit facility prior to its amendment and restatement.
In 2017, we purchased and redeemed $1.265retired $2.389 billion in aggregate principal amount of our 9.5%outstanding senior notes, senior secured second lien notes and contingent convertible notes through purchases in the open market, tender offers, redemptions or repayment upon maturity for $2.592 billion, which included the maturity of our 6.25% Euro-denominated Senior Notes due 2015.2017 and the corresponding cross currency swap. We recorded a lossan aggregate gain of approximately $99$233 million associated with the purchaserepurchases and redemption.tender offers.
Other Income. In addition,2019, we redeemed $97recognized $9 million in principal amount of our 6.875% Senior Notes due 2018 at par. We recorded a loss of approximately $6 million associated with the redemption.
Other Income. Other income was $19 million in 2016 compared to $8 million in 2015 and $22 million in 2014. The 2016 other income consisted primarilyfrom the sale of $2 million of interest income and $17 million ofseismic data licenses to third parties. The remaining amount in 2019 was from other non-operating miscellaneous income. The 2015 income consisted of $6In 2018, we extinguished our obligation to convey future ORRIs to the CHK Utica L.L.C. investors and recognized a $61 million of interest income and $2 million of miscellaneous income. The 2014gain included in other income consistedon our consolidated statement of $3 million of interest income and $19 million of miscellaneous income.operations.
Income Tax Expense (Benefit). Chesapeake We recorded an income tax benefit of $190$331 million in 2016,2019, an income tax benefit of $4.463 billion$10 million in 20152018 and income tax expense of $1.144 billion$2 million in 2014. Our effective2017. The income tax ratebenefit for 2019 consists mainly of a partial release of the valuation allowance maintained against our net deferred tax asset position. The partial release was 4.1% in 2016 compared to 23.4% in 2015 and 35.8% in 2014. The decreasea consequence of recording a net deferred tax liability of $314 million resulting from the business combination accounting for WildHorse. Other material items included in the effective2019 income tax rate from 2015 to 2016 is primarily due tobenefit include a benefit for the reversal of a liability for unrecognized tax benefit at expected rates beingbenefits of $32 million partially offset by an expense of $10 million associated with Texas no longer being in a valuation allowance. Further, our effectivenet deferred tax rate can fluctuate asasset position, and a result of the impact ofcurrent state income taxes and permanent differences.tax expense of $6 million. See Note 610 of the notes to our consolidated financial statements included in Item 8 of this report for a discussion of income tax expense (benefit).
Net
Critical Accounting Policies and Estimates
The preparation of financial statements in accordance with accounting principles generally accepted in the United States require us to make estimates and assumptions. The accounting estimates and assumptions we consider to be most significant to our financial statements are discussed below. Our management has discussed each critical accounting estimate with the Audit Committee of our Board of Directors.
Oil and Natural Gas Reserves. Estimates of oil and natural gas reserves and their values, future production rates, future development costs and commodity pricing differentials are the most significant of our estimates. The accuracy of any reserve estimate is a function of the quality of data available and of engineering and geological interpretation and judgment. In addition, estimates of reserves may be revised based on actual production, results of subsequent exploration and development activities, recent commodity prices, operating costs and other factors. These revisions could materially affect our financial statements. The volatility of commodity prices results in increased uncertainty inherent in these estimates and assumptions. Changes in oil, natural gas or NGL prices could result in actual results differing significantly from our estimates. See Supplemental Disclosures About Oil, Natural Gas, and NGL Producing Activities included in Item 8 of this report for further information.
Impairments. Long-lived assets used in operations, including proved oil and gas properties, are assessed for impairment whenever changes in facts and circumstances indicate a possible significant deterioration in future cash flows expected to be generated by an asset group. Individual assets are grouped for impairment purposes based on

a judgmental assessment of the lowest level for which there are identifiable cash flows that are largely independent of the cash flows of other groups of assets. If there is an indication the carrying amount of an asset may not be recovered, the asset is assessed by management through an established process in which changes to significant assumptions such as prices, volumes, and future development plans are reviewed. If, upon review, the sum of the undiscounted pre-tax cash flows is less than the carrying value of the asset group, the carrying value is written down to estimated fair value by discounting using a weighted average cost of capital. Because there usually is a lack of quoted market prices for long-lived assets, the fair value of impaired assets is assessed by management using the income approach. Level 3 inputs associated with the calculation of discounted cash flows used in the impairment analysis include our estimate of future crude oil and natural gas prices, production costs, development expenditures, anticipated production of proved reserves and other relevant data. Additionally, we utilize a combination of NYMEX strip pricing and consensus pricing, adjusted for differentials, to value the reserves.
Income AttributableTaxes. The amount of income taxes recorded requires interpretations and application of complex rules and regulations pertaining to Noncontrolling Interests. Chesapeake recorded netfederal, state and local taxing jurisdictions. Income taxes are accounted for using the asset and liability method as required by GAAP. We recognize deferred tax assets and liabilities for temporary differences between the tax basis of assets and liabilities and their reported amounts in the financial statements. Deferred tax assets for NOL carryforwards and disallowed business interest carryforwards have also been recognized. We routinely assess the realizability of our deferred tax assets and reduce such assets by a valuation allowance if it is more likely than not that all or some portion of the deferred tax assets will not be realized. In assessing the need for additional valuation allowances or adjustments to existing valuation allowances, we consider the weight of all available evidence, both positive and negative, concerning the realization of the deferred tax asset. Among the more significant types of evidence that we consider are:
taxable income attributableprojections in future years;
reversal of existing deferred tax liabilities against deferred tax assets and whether the carryforward period is so brief that it would limit realization of the tax benefit;
future sales and operating cost projections that will produce more than enough taxable income to noncontrolling interestsrealize the deferred tax asset based on existing sales prices and cost structures; and
our earnings history exclusive of $2 million, $50 millionany loss that creates a future deductible amount coupled with evidence indicating that the loss is an aberration rather than a continuing condition.
Our judgments and $139 millionassumptions in 2016, 2015estimating future taxable income include such factors as future operating conditions and 2014,commodity prices when determining if deferred tax assets are not more likely than not to be realized. As of December 31, 2019, and 2018, we had deferred tax assets totaling $2.449 billion and $3.231 billion upon which we had a valuation allowance of $1.805 billion and $2.011 billion, respectively. The 2016 amount was attributable to
We also routinely assess potential uncertain tax positions and, if required, establish accruals for such positions. Accounting guidance for recognizing and measuring uncertain tax positions requires that a more likely than not threshold condition be met on a tax position, based solely on its technical merits of being sustained, before any benefit of the Chesapeake Granite Wash Trust (the Trust). The 2015 amount was primarilyuncertain tax position can be recognized in the financial statements. Guidance is also provided regarding de-recognition, classification and disclosure of these uncertain tax positions. If a tax position does not meet or exceed the more likely than not threshold then no benefit can be recorded. We accrue any applicable interest related to dividends paid on preferred stockuncertain tax positions as a component of our CHK C-T subsidiary. The decrease from 2015 to 2016 is due to the repurchase of all of the preferred shares of CHK C-T from third-party shareholders in August 2015. The 2014 amount included incomeinterest expense. Penalties, if any, related to the Trust as well as dividends paid on preferred stock of our CHK C-T and CHK Utica subsidiaries. The decrease from 2014 to 2015 is primarily due to the repurchase of all of the outstanding preferred shares of CHK Utica and CHK C-T from third-party preferred shareholdersuncertain tax positions would be recorded in July 2014 and August 2015, respectively. See Notes 8 and 15other expense. Additional information about uncertain tax positions appears in Note 10 of the notes to our consolidated financial statements included in Item 8 of this reportreport.
Contingencies. We are subject to various legal proceedings, claims, and liabilities that arise in the ordinary course of business. Except for contingencies acquired in a discussionbusiness combination, which are recorded at fair value at the time of these entities.

Applicationacquisition, we accrue losses when such losses are probable and reasonably estimable. If we determine that a loss is probable and cannot estimate a specific amount for that loss, but can estimate a range of Critical Accounting Policies
Readers of this report and usersloss, the best estimate within the range is accrued. If no amount within the range is a better estimate than any other, the minimum amount of the information containedrange is accrued. Our in-house legal personnel regularly assess contingent liabilities and, in it should be aware that certain events may impactcircumstances, consult with third-party legal counsel or consultants to assist in the evaluation of our financial resultsliability for these contingencies.
We make judgments and estimates when we establish liabilities for litigation and other contingent matters. Estimates of litigation-related liabilities are based on the accounting policies in place. The three policies we consider to be most significant to our financial statements are discussed below. The Company's management has discussed each critical accounting policy with the Audit Committeefacts and circumstances of the Company's Boardindividual case and on information currently available to us. The extent of Directors.
The selection and application of accounting policies is an important process that changes as our business evolves and accounting rules are refined. Accounting rules generally do not involve a selection among alternatives, but rather they provide for the interpretation of existing rules and the use of judgment in applying guidance to the specific set of circumstances existing in our business.
Oil and Natural Gas Properties. The accounting for our business is subject to special accounting rules that are unique to the oil and natural gas industry. There are two allowable methods of accounting for oil and natural gas business activities: the successful efforts method and the full cost method. Chesapeake follows the full cost method of accounting under which all costs associated with property acquisition, exploration and development activities are capitalized. We also capitalize internal costs that can be directly identified with our acquisition, exploration and development activities and do not capitalize any costs related to production, general corporate overhead or similar activities.
Under the successful efforts method, geological and geophysical costs and costs of carrying and retaining undeveloped properties are charged to expense as incurred. Costs of drilling exploratory wells that do not result in proved reserves are charged to expense. Depreciation, depletion, amortization and impairment of oil and natural gas properties are generally calculated on a well by well or lease or field basis versus the aggregated "full cost" pool basis. Additionally, gain or loss is generally recognized on all sales of oil and natural gas properties under the successful efforts method. As a result, our financial statements differ from those of companies that apply the successful efforts method since we generally reflect a higher level of capitalized costs as well as a higher oil and natural gas depreciation, depletion and amortization rate, and we do not have exploration expenses that successful efforts companies frequently have.
Under the full cost method, capitalized costs are amortized on a composite unit-of-production methodinformation available varies based on proved oilthe status of the litigation and natural gas reserves. If we maintainour evaluation of the same levelclaim and legal arguments. In future periods, a number of production year over year, the depreciation, depletion and amortization expense may befactors could significantly different ifchange our estimate of remaining reserveslitigation-related liabilities, including discovery activities; briefings filed with the relevant court; rulings from

the court made pre-trial, during trial, or future development costs changes significantly. Proceeds fromat the saleconclusion of properties are accounted for as reductions of capitalized costs unless these sales involve a significantany trial; and similar cases involving other plaintiffs and defendants that may set or change in proved reserveslegal precedent. As events unfold throughout the litigation process, we evaluate the available information and significantly alter the relationship between costs and proved reserves, in which case a gain or loss is recognized. The costs of unproved properties are excluded from amortization until the properties are evaluated. We review all of our unevaluated properties quarterlymay consult with third-party legal counsel to determine whether liability accruals should be established or not and to what extent proved reserves have been assigned to the properties, and otherwise if impairment has occurred. Unevaluated properties are grouped by major producing area where individual property costs are not significant.adjusted.
Derivatives.We review the carrying value of our oil and natural gas properties under the SEC's full cost accounting rules on a quarterly basis. This quarterly review is referred to as a ceiling test. Under the ceiling test, capitalized costs, less accumulated amortization and related deferred income taxes, may not exceed an amount equal to the sum of the present value of estimated future net revenues (adjusted for oil and natural gas cash flow hedges) less estimated future expenditures to be incurred in developing and producing the proved reserves, less any related income tax effects. In calculating estimated future net revenues, current prices are calculated as the unweighted arithmetic average of oil and natural gas prices on the first day of each month within the 12-month period prior to the ending date of the quarterly period. Costs used are those as of the end of the applicable quarterly period. These prices are utilized except where different prices are fixed and determinable from applicable contracts for the remaining term of those contracts, including the effects of derivatives designated as cash flow hedges.
Two primary factors impacting this test are reserve levels and oil and natural gas prices, and their associated impact on the present value of estimated future net revenues. Revisions to estimates of oil and natural gas reserves and/or an increase or decrease in prices can have a material impact on the present value of estimated future net revenues. Any excess of the net book value, less deferred income taxes, is generally written off as an expense. See Oil and Natural Gas Properties in Note 1 of the notes to our consolidated financial statements included in Item 8 of this report for further information on the full cost method of accounting.

Derivatives. Chesapeake usesuse commodity price and financial risk management instruments to mitigate a portion of our exposure to price fluctuations in oil, natural gas and NGL prices, changes in interest rates and foreign exchange rates. Gains and losses on derivative contracts are reported as a component of the related transaction.prices. Results of commodity derivative contracts are reflected in oil, natural gas and NGL salesrevenues and results of interest rate and foreign exchange rate derivative contracts are reflected in interest expense. The changes in
Due to the fair valuevolatility of derivative instruments not qualifying, or not elected, for designation as either cash flow or fair value hedges that occur prior to maturity are reported currently in the consolidated statement of operations as unrealized gains (losses) within oil, natural gas and NGL sales orprices and, to a lesser extent, interest expense. Cash settlementsrates and foreign exchange rates, our financial condition and results of operations may be significantly impacted by changes in the market value of our derivative arrangements are generally classified as operating cash flows unless the derivative is deemed to contain, for accounting purposes, a significant financing element at contract inception, in which case these cash settlements are classified as financing cash flows in the accompanying consolidated statementsinstruments. As of cash flows.
Accounting guidance for derivative instrumentsDecember 31, 2019, and hedging activities establishes accounting and reporting standards requiring that derivative instruments (including certain derivative instruments embedded in other contracts) be recorded at fair value and included in the consolidated balance sheets as assets or liabilities. The accounting for changes in the fair value of a derivative instrument depends on the intended use of the derivative and the resulting designation, which is established at the inception of a derivative. For derivative instruments designated as oil, natural gas and NGL cash flow hedges, changes in fair value, to the extent the hedge is effective, are recognized in other comprehensive income until the hedged item is recognized in earnings as oil, natural gas and NGL sales. Any change in the fair value resulting from ineffectiveness is recognized immediately in oil, natural gas and NGL sales. For interest rate derivative instruments designated as fair value hedges, changes in fair value, as well as the offsetting changes in the estimated fair value of the hedged item attributable to the hedged risk, are recognized currently in earnings as interest expense. Differences between the changes in2018, the fair values of the hedged itemour derivatives were net assets of $130 million and the derivative instrument, if any, represent gains or losses on ineffectiveness and are reflected currently in interest expense. Hedge effectiveness is measured at least quarterly based on the relative changes in fair value between the derivative contract and the hedged item over time. Changes in fair value of contracts that do not qualify as hedges or are not designated as hedges are also recognized currently in earnings. See Derivative Activities above and Item 7A. Quantitative and Qualitative Disclosures About Market Risk for additional information regarding our derivative activities.$282 million, respectively.
One of the primary factors that can have an impact on our results of operations is the method used to value our derivatives. We have established the fair value of our derivative instruments utilizing established index prices, volatility curves and discount factors. These estimates are compared to counterparty valuations for reasonableness. Derivative transactions are also subject to the risk that counterparties will be unable to meet their obligations. This non-performance risk is considered in the valuation of our derivative instruments, but to date has not had a material impact on the values of our derivatives. The values we report in our financial statements are as of a point in time and subsequently change as these estimates are revised to reflect actual results, changes in market conditions and other factors. Additionally, in accordance with accounting guidance for derivatives and hedging, to the extent that a legal right of set-off exists, we net the value of our derivative instruments with the same counterparty in the accompanying consolidated balance sheets.
Another factor that can impact our results of operations each period is our ability to estimate the level of correlation between future changes in the fair value of the derivative instruments and the transactions being hedged, both at inception and on an ongoing basis. This correlation is complicated since energy commodity prices, the primary risk we hedge, have quality and location differences that can be difficult to hedge effectively. The factors underlying our estimates of fair value and our assessment of correlation of our derivative instruments are impacted by actual results and changes in conditions that affect these factors, many of which are beyond our control.
Due to the volatility of oil, natural gas and NGL prices and, to a lesser extent, interest rates and foreign exchange rates, the Company's financial condition and results of operations can be significantly impacted by changes in the market value of our derivative instruments. As of December 31, 2016 and 2015, the fair values of our derivatives were net liabilities of $577 million and net assets of $512 million, respectively.

Income Taxes. The amount of income taxes recorded by the Company requires interpretations of complex rules and regulations of both federal and state taxing jurisdictions. Income taxes are accounted for using the asset and liability approach. The Company has recognized deferred tax assets and liabilities for temporary differences between tax and book basis, tax credit carryforwards and net operating loss carryforwards. We routinely assess the realizability of our deferred tax assets and reduce such assets by a valuation allowance if it is more likely than not that some portion or all of the deferred tax assets will not be realized. In assessing the need for additional or adjustments to existing valuation allowances, we consider the preponderance of evidence concerning the realization of the deferred tax asset. Among the more significant types of evidence that we consider are:
taxable income projections in future years;
reversal of existing deferred tax liabilities against deferred tax assets and whether the carryforward period is so brief that it would limit realization of the tax benefit;
future sales and operating cost projections that will produce more than enough taxable income to realize the deferred tax asset based on existing sales prices and cost structures; and
our earnings history exclusive of the loss that created the future deductible amount coupled with evidence indicating that the loss is an aberration rather than a continuing condition.
Our judgments and assumptions in estimating future taxable income include such factors as future operating conditions and commodity prices. As of December 31, 2016 and 2015, we had deferred tax assets of $4.690 billion and $4.122 billion, respectively, upon which we had a valuation allowance of $4.389 billion and $2.949 billion, respectively. The valuation allowance as of December 31, 2016 and 2015 was recorded against our net deferred tax assets. We have concluded that these deferred tax assets are not more likely than not to be realized.
The Company routinely assesses potential uncertain tax positions and, if required, establishes accruals for such amounts. Accounting guidance for recognizing and measuring uncertain tax positions prescribes a threshold condition that a tax position must meet for any of the benefit of the uncertain tax position to be recognized in the financial statements. Guidance is also provided regarding de-recognition, classification and disclosure of these uncertain tax positions. Tax positions that do not meet or exceed this threshold condition are considered uncertain tax positions. We accrue interest related to these uncertain tax positions which is recognized in interest expense. Penalties, if any, related to uncertain tax positions would be recorded in other expenses. Additional information about uncertain tax positions appears in Note 6 of the notes to our consolidated financial statements included in Item 8 of this report.
Disclosures About Effects of Transactions with Related Parties
Our equity method investees are considered related parties. See Note 724 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of transactions with our equity method investees.

Forward-Looking Statements
This report includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 (the Exchange Act). Forward-looking statements give our current expectations or forecasts of future events. They include expected oil, natural gas and NGL production and future expenses, estimated operating costs, assumptions regarding future oil, natural gas and NGL prices, planned drilling activity, estimates of future drilling and completion and other capital expenditures (including the use of joint venture drilling carries), potential future write-downs of our oil and natural gas assets, anticipated sales, and the adequacy of our provisions for legal contingencies, as well as statements concerning anticipated cash flow and liquidity, ability to comply with financial maintenance covenants and meet contractual cash commitments to third parties, debt repurchases, operating and capital efficiencies, business strategy, the effect of our remediation plan for a material weakness, and other plans and objectives for future operations. Disclosures concerning the fair values of derivative contracts and their estimated contribution to our future results of operations are based upon market information as of a specific date. These market prices are subject to significant volatility.
Although we believe the expectations and forecasts reflected in our forward-looking statements are reasonable, we can give no assurance they will prove to have been correct. They can be affected by inaccurate assumptions or by known or unknown risks and uncertainties. Factors that could cause actual results to differ materially from expected results are described under Risk Factors in Item 1A of Part I of this report and include:
the volatility of oil, natural gas and NGL prices;
the limitations our level of indebtedness may have on our financial flexibility;
our inability to access the capital markets on favorable terms;
the availability of cash flows from operations and other funds to finance reserve replacement costs or satisfy our debt obligations;
our credit rating requiring us to post more collateral under certain commercial arrangements;
write-downs of our oil and natural gas asset carrying values due to low commodity prices;
our ability to replace reserves and sustain production;
uncertainties inherent in estimating quantities of oil, natural gas and NGL reserves and projecting future rates of production and the amount and timing of development expenditures;
our ability to generate profits or achieve targeted results in drilling and well operations;
leasehold terms expiring before production can be established;
commodity derivative activities resulting in lower prices realized on oil, natural gas and NGL sales;
the need to secure derivative liabilities and the inability of counterparties to satisfy their obligations;
adverse developments or losses from pending or future litigation and regulatory proceedings, including royalty claims;
charges incurred in response to market conditions and in connection with our ongoing actions to reduce financial leverage and complexity;
drilling and operating risks and resulting liabilities;
effects of environmental protection laws and regulation on our business;
legislative and regulatory initiatives further regulating hydraulic fracturing;
our need to secure adequate supplies of water for our drilling operations and to dispose of or recycle the water used;
impacts of potential legislative and regulatory actions addressing climate change;
federal and state tax proposals affecting our industry;
potential OTC derivatives regulation limiting our ability to hedge against commodity price fluctuations;
competition in the oil and gas exploration and production industry;
a deterioration in general economic, business or industry conditions;
negative public perceptions of our industry;

limited control over properties we do not operate;
pipeline and gathering system capacity constraints and transportation interruptions;
terrorist activities and/or cyber-attacks adversely impacting our operations;
potential challenges by SSE’s former creditors of our spin-off of in connection with SSE’s recently completed bankruptcy under Chapter 11 of the U.S. Bankruptcy Code;
an interruption in operations at our headquarters due to a catastrophic event;
the continuation of suspended dividend payments on our common stock;
the effectiveness of our remediation plan for a material weakness;
certain anti-takeover provisions that affect shareholder rights; and
our inability to increase or maintain our liquidity through debt repurchases, capital exchanges, asset sales, joint ventures, farmouts or other means.
We caution you not to place undue reliance on the forward-looking statements contained in this report, which speak only as of the filing date, and we undertake no obligation to update this information except as required by applicable law. We urge you to carefully review and consider the disclosures made in this report and our other filings with the SEC that attempt to advise interested parties of the risks and factors that may affect our business.

ITEM 7A.Quantitative and Qualitative Disclosures About Market Risk
Oil, Natural GasThe primary objective of the following information is to provide forward-looking quantitative and qualitative information about our exposure to market risk. The term market risk relates to our risk of loss arising from adverse changes in oil, natural gas, and NGL Derivativesprices and interest rates. These disclosures are not meant to be precise indicators of expected future losses, but rather indicators of reasonably possible losses. The forward-looking information provides indicators of how we view and manage our ongoing market risk exposures.
Commodity Price Risk
Our results of operations and cash flows are impacted by changes in market prices for oil, natural gas and NGL.NGL, which have historically been volatile. To mitigate a portion of our exposure to adverse price changes, we have enteredenter into various derivative instruments. These instrumentsOur oil, natural gas and NGL derivative activities, when combined with our sales of oil, natural gas and NGL, allow us to predict with greater certainty the effective prices to be received for our share of production.revenue we will receive. We believe our derivative instruments continue to be highly effective in achieving our risk management objectives.
Our general strategy for protecting short-term cash flow and attempting to mitigate exposure to adverse oil, natural gas and NGL price changes is to hedge into strengthening oil and natural gas futures markets when prices reach levels that management believes are unsustainable for the long term, have material downside risk in the short term or provide reasonable rates of return on our invested capital. Information we consider in forming an opinion about future prices includes general economic conditions, industrial output levels and expectations, producer breakeven cost structures, liquefied natural gas trends, oil and natural gas storage inventory levels, industry decline rates for base production and weather trends.
We use derivative instruments to achieve our risk management objectives, including swaps, collars and options. All of these are described in more detail below. We typically use swaps and collars for a large portion of the oil and natural gas price risk we hedge. We have also sold calls, taking advantage of premiums associated with market price volatility.
We determine the volume potentially subject to derivative contracts by reviewing our overall estimated future production levels, which are derived from extensive examination of existing producing reserve estimates and estimates of likely production from new drilling. Production forecasts are updated at least monthly and adjusted if necessary to actual results and activity levels. We do not enter into derivative contracts for volumes in excess of our share of forecasted production, and if production estimates were lowered for future periods and derivative instruments are already executed for some volume above the new production forecasts, the positions would be reversed. The actual fixed price on our derivative instruments is derived from the reference NYMEX price, as reflected in current NYMEX trading. The pricing dates of our derivative contracts follow NYMEX futures. All of our commodity derivative instruments are net settled based on the difference between the fixed price as stated in the contract and the floating-price payment, resulting in a net amount due to or from the counterparty.
We review our derivative positions continuously and if future market conditions change and prices are at levels we believe could jeopardize the effectiveness of a position, we will mitigate this risk by either negotiating a cash settlement with our counterparty, restructuring the position or entering into a new trade that effectively reverses the current position. The factors we consider in closing or restructuring a position before the settlement date are identical to those we review when deciding to enter into the original derivative position. Gains or losses related to closed positions will be recognized in the month of related production based on the terms specified in the original contract.

We have determined the fair value of our derivative instruments utilizing established index prices, volatility curves and discount factors. These estimates are compared to counterparty valuations for reasonableness. Derivative transactions are also subject to the risk that counterparties will be unable to meet their obligations. This non-performance risk is considered in the valuation of our derivative instruments, but to date has not had a material impact on the values of our derivatives. Future risk related to counterparties not being able to meet their obligations has been partially mitigated under our commodity hedging arrangements whichthat require counterparties to post collateral if their obligations to Chesapeakeus are in excess of defined thresholds. The values we report in our financial statements are as of a point in time and subsequently change as these estimates are revised to reflect actual results, changes in market conditions and other factors. See Note 1114 of the notes to our consolidated financial statements included in Item 8 of this report for further discussion of the fair value measurements associated with our derivatives.
For the year ended December 31, 2019, oil, natural gas, and NGL revenue, excluding any effect of our derivative instruments, were $2.543 billion, $1.782 billion, and $192 million, respectively. Based on 2019 production, oil, natural gas, and NGL revenue for the year ended December 31, 2019 would have increased or decreased by approximately $254 million, $178 million, and $19 million, respectively, for each 10% increase or decrease in prices. As of December 31, 20162019, the fair values of our oil and gas derivatives were net assets of $5 million and $125 million, respectively. A 10% increase in forward oil prices would decrease the valuation of oil derivatives by $147 million while a 10% decrease would increase the valuation by $150 million. A 10% increase in forward gas prices would decrease the valuation of gas derivatives by approximately $58 million while a 10% decrease would increase the valuation by $57 million. This fair value change assumes volatility based on prevailing market parameters at December 31, 2019. See Note 14 of the notes to our consolidated financial statements included in Item 8 of this report for further information on our open derivative positions.
Beginning with this report, we have revised our commodity price risk disclosure alternative from the tabular format to a sensitivity analysis, which we believe is a more commonly used and easily understood disclosure alternative. We have presented below the tabular analysis as of December 31, 2019 and 2018 for comparative purposes.

Oil, Natural Gas and NGL Derivatives
As of December 31, 2019, and 2018, our oil, natural gas and NGL derivative instruments consisted of the following:following types of instruments:
Swaps: We receive a fixed price and pay a floating market price to the counterparty for the hedged commodity. In exchange for higher fixed prices on certain of our swap trades, we may sell call options and call swaptions.
Options: We sell, and occasionally buy, call options in exchange for a premium. At the time of settlement, if the market price exceeds the fixed price of the call option, we pay the counterparty the excess on sold call options and we receive the excess on bought call options. If the market price settles below the fixed price of the call option, no payment is due from either party.
Call Swaptions: We sell call swaptions to counterparties in exchange for a premium. Swaptions allow the counterparty, on a specific date, to extend an existing fixed-price swap for a certain period of time or to increase the notional volumes of an existing fixed-price swap.
Collars: These instruments contain a fixed floor price (put) and ceiling price (call). If the market price exceeds the call strike price or falls below the put strike price, we receive the fixed price and pay the market price. If the market price is between the put and the call strike prices, no payments are due from either party. Three-way collars include the sale by us of an additional put option in exchange for a more favorable strike price on the call option. This eliminates the counterparty’s downside exposure below the second put option strike price.
Basis Protection Swaps: These instruments are arrangements that guarantee a fixed price differential to NYMEX from a specified delivery point. We receive the fixed price differential and pay the floating market price differential to the counterparty for the hedged commodity.
As of December 31, 2019, we had the following open oil and natural gas derivative instruments:
Swaps: Chesapeake receives a fixed price and pays a floating market price to the counterparty for the hedged commodity.
Options: Chesapeake sells, and occasionally buys, call options in exchange for a premium. At the time of settlement, if the market price exceeds the fixed price of the call option, Chesapeake pays the counterparty the excess on sold call options, and Chesapeake receives the excess on bought call options. If the market price settles below the fixed price of the call options, no payment is due from either party.
    Weighted Average Price Fair Value
  Volume Fixed Call Put Differential Asset
(Liability)
  (mmbbl) ($ per bbl) ($ in millions)
Oil:            
Swaps:            
Short-term 24
 $58.54
 $
 $
 $
 $(7)
Collars:            
Short-term 2
 $
 $83.25
 $65.00
 $
 14
Basis Protection Swaps:            
Short-term 8
 $
 $
 $
 $2.49
 (2)
Total Oil 5
  (bcf) ($ per mcf)  
Natural Gas:            
Swaps:            
Short-term 265
 $2.76
 $
 $
 $
 125
Call Options (sold):            
Short-term 22
 $
 $12.00
 $
 $
 
Call Swaptions:            
Long-term 29
 $2.80
 $
 $
 $
 (2)
Basis Protection Swaps:            
Short-term 30
 $
 $
 $
 $0.08
 2
Total Natural Gas 125
Total Commodities $130
Collars: These instruments contain a fixed floor price (put) and ceiling price (call). If the market price exceeds the call strike price or falls below the put strike price, Chesapeake receives the fixed price and pays the market price. If the market price is between the put and the call strike prices, no payments are due from either party.

Basis Protection Swaps: These instruments are arrangements that guarantee a fixed price differential to NYMEX from a specified delivery point. Chesapeake receives the fixed price differential and pays the floating market price differential to the counterparty for the hedged commodity.



As of December 31, 20162018, we had the following open oil and natural gas and NGL derivative instruments:
   Weighted Average Price Fair Value   Weighted Average Price Fair Value
 Volume Fixed Call Put Differential Asset
(Liability)
 Volume Fixed Call Put Differential 
Asset
(Liability)
 (mmbbl) ($ per bbl) ($ in millions) (mmbbl) ($ per bbl) ($ in millions)
Oil:                        
Swaps:                        
Short-term 23
 $50.19
 $
 $
 $
 $(140) 10
 $58.97
 $
 $
 $
 $117
Call Options (sold):            
Long-term 2
 $68.14
 $
 $
 $
 40
Collars:            
Short-term 6
 $
 $67.75
 $58.00
 $
 68
Long-term 2
 $
 $83.25
 $65.00
 $
 30
Basis Protection Swaps:            
Short-term 5
 $
 $83.50
 $
 $
 (1) 7
 $
 $
 $
 $6.01
 5
Total Oil Total Oil $(141)Total Oil 260
      
 (tbtu) ($ per mmbtu) 
 (bcf) ($ per mcf)  
Natural Gas:                        
Swaps:                        
Short-term 599
 $3.07
 $
 $
 $
 $(336) 447
 $2.87
 $
 $
 $
 11
Long-term 120
 $3.13
 $
 $
 $
 (13) 176
 $2.75
 $
 $
 $
 15
Three-Way Collars:            
Short-term 88
 $
 $3.10
 $ 2.50/2.80
 $
 1
Collars:                        
Short-term 23
 $
 $3.48
 $3.00
 $
 (8) 55
 $
 $3.02
 $2.75
 $
 (3)
Long-term 37
 $
 $3.25
 $3.00
 $
 (1)
Call Options (sold):                        
Short-term 48
 $
 $9.43
 $
 $
 
 22
 $
 $12.00
 $
 $
 
Long-term 66
 $
 $12.00
 $
 $
 
 22
 $
 $12.00
 $
 $
 
Call Swaptions:            
Long-term 106
 $2.77
 $
 $
 $
 (9)
Basis Protection Swaps:                        
Short-term 30
 $
 $
 $
 $(0.11) (4) 50
 $
 $
 $
 $(0.56) 
Long-term 1
 $
 $
 $
 $(0.98) (1)
Total Natural GasTotal Natural Gas $(363)Total Natural Gas 15
      
 (mmgal) ($ per mgal)  
NGL:            
Ethane Swaps:            
Total CommoditiesTotal Commodities 275
Contingent Consideration:Contingent Consideration:          
Utica Divestiture:            
Short-term 53
 $0.28
 $
 $
 $
 $
 
 $
 $
 $
 $
 7
Total NGL $
  
Total Oil, Natural Gas and NGL $(504)
Total Derivative AssetTotal Derivative Asset $282
In addition to the open derivative positions disclosed above, as of December 31, 2016, we had nominal derivative gains related to settled contracts for future production periods that will be recorded within oil, natural gas and NGL sales as realized gains (losses) on derivatives once they are transferred from either accumulated other comprehensive income or unrealized gains (losses) on derivatives in the month of related production, based on the terms specified in the original contract as noted below.

  December 31,
2016
  ($ in millions)
Short-term $82
Long-term (82)
Total $

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The table below reconciles the changes in fair value of our oil and natural gas derivatives during 2016. Of the $504 million fair value liability as of December 31, 2016, a $489 million liability relates to contracts maturing in the next 12 months and a $15 million liability relates to contracts maturing after 12 months. All open derivative instruments as of December 31, 2016 are expected to mature by December 31, 2022.
  December 31,
2016
  ($ in millions)
Fair value of contracts outstanding, as of January 1, 2016 $267
Change in fair value of contracts (546)
Contracts realized or otherwise settled (230)
Fair value of contracts closed 5
Fair value of contracts outstanding, as of December 31, 2016 $(504)
The change in oil and natural gas prices during 2016 decreased the asset related to our derivative instruments by $546 million. This unrealized loss is recorded in oil, natural gas and NGL sales. We settled contracts in 2016 that were in an asset position for $230 million. We terminated contracts that were in a liability position for $5 million. Realized gains and losses will be recorded in oil, natural gas and NGL sales in the month of related production.
Interest Rate DerivativesRisk
The table below presents principal cash flows and related weighted average interest rates by expected maturity dates, using the earliest demand repurchase date for contingent convertible senior notes. As of December 31, 2016, we had total debt of $9.989 billion, including $8.109 billion of fixed rate debt at interest rates averaging 6.66% and $1.880 billion of floating rate debt at an interest rate of 7.62%.
Years of Maturity  Years of Maturity  
2017 2018 2019 2020 2021 Thereafter Total2020 2021 2022 2023 2024 Thereafter Total
($ in millions)($ in millions)
Liabilities:                          
Debt – fixed rate(a)
$506
 $264
 $
 $1,061
 $820
 $5,458
 $8,109
$385
 $294
 $289
 $174
 $624
 $4,060
 $5,826
Average interest rate5.47% 3.46% % 6.68% 5.88% 7.03% 6.66%6.38% 5.80% 4.88% 5.75% 7.00% 9.34% 8.39%
Debt – variable rate$
 $
 $380
 $
 $1,500
 $
 $1,880
$
 $
 $
 $1,590
 $1,500
 $
 $3,090
Average interest rate% % 4.13% % 8.50% % 7.62%% % % 4.78% 9.93% % 7.28%

(a)This amount does not include the premium, discount and deferred financing costs included in debt of $449 million and interest rate derivatives of $3 million.
Changes in interest rates affect the amount of interest we earn on our cash, cash equivalents and short-term investments and the interest rate we pay on borrowings under our revolving credit facility and our term loan and our floating rate senior notes.facility. All of our other indebtedness is fixed rate and, therefore, does not expose us to the risk of fluctuations in earnings or cash flow due to changes in market interest rates. However, changes in interest rates do affect the fair value of our fixed-rate debt.
From time to time, we enter into interest rate derivatives, including fixed-to-floating interest rate swaps (we receive a fixed interest rate and pay a floating market rate) to mitigate our exposure to changes inDuring the fair value of our senior notes and floating-to-fixed interest rate swaps (we receive a floating market rate and pay a fixed interest rate) to manage our interest rate exposure related to our revolving credit facility borrowings. As of year ended December 31, 2016, there were no interest rate derivatives outstanding.
As of December 31, 2016, we had $142019, $5 million of net gains related to settled interest rate derivative contracts that will bewere transferred from our senior note liability or unrealized gains or losses and recorded within interest expense as realized gains or losses once they are transferred from our senior note liabilitylosses. As of December 31, 2019, there were no remaining open or within interest expense as unrealized gains or losses over the remaining seven-year term of our related senior notes.
Realized and unrealized (gains) or losses fromsettled interest rate derivative transactions are reflected as adjustments to interest expense on the consolidated statements of operations.contracts.
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Foreign Currency Derivatives
In December 2006, we issued €600 million of 6.25% Euro-denominated Senior Notes due 2017. Concurrent with the issuance of the euro-denominated senior notes, we entered into cross currency swaps to mitigate our exposure to fluctuations in the euro relative to the dollar over the term of the senior notes. In May 2011, we purchasedITEM 8.     Financial Statements and subsequently retired €256 million in aggregate principal amount of these senior notes following a tender offer, and we simultaneously unwound the cross currency swaps for the same principal amount. In 2016, in connection with our tender offers, we retired €56 million in aggregate principal amount of our 6.25% Euro-denominated Senior Notes due 2017, and we simultaneously unwound the cross currency swaps for the same principal amount at a cost of $13 million. Under the terms of the remaining cross currency swaps, on each semi-annual interest payment date, the counterparties pay us €8 million and we pay the counterparties $12 million, which yields an annual dollar-equivalent interest rate of 7.491%. Upon maturity of the notes, the counterparties will pay us €246 million and we will pay the counterparties $327 million. The terms of the cross currency swaps were based on the dollar/euro exchange rate on the issuance date of $1.3325 to €1.00. Through the cross currency swaps, we have eliminated any potential variability in our expected cash flows related to changes in foreign exchange rates and therefore the swaps are designated as cash flow hedges. The fair values of the cross currency swaps are recorded on the consolidated balance sheets as liabilities of $73 million and $52 million as of December 31, 2016 and 2015, respectively. The euro-denominated debt in long-term debt has been adjusted to $258 million as of December 31, 2016, using an exchange rate of $1.0517 to €1.00.
Supplementary Data
Supply Contract Derivatives
As discussed in Note 11 of the notes to our consolidated financial statements included in Item 8 of this report, we enter into supply contracts in the normal course of business under which we commit to deliver a predetermined quantity of natural gas to certain counterparties in an attempt to earn attractive margins. Under certain contracts, we receive a sales price that is based on the price of a product other than natural gas thereby creating an embedded derivative requiring bifurcation. The prices of the products other than natural gas are unobservable. We engage an independent third-party valuation firm to value these supply contracts. The products being valued other than natural gas are sensitive to pricing fluctuations and some of these fluctuations could be material. Changes to the value of these contracts are recorded as mark-to-market adjustments to marketing, gathering and compression revenues in our consolidated financial statements.
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ITEM
INDEX TO FINANCIAL STATEMENTS
CHESAPEAKE ENERGY CORPORATION
Page
Consolidated Financial Statements:
Consolidated Balance Sheets  as of December 31, 2019 and 2018
for the Years Ended December 31, 2019, 2018 and 2017
for the Years Ended December 31, 2019, 2018 and 2017
for the Years Ended December 31, 2019, 2018 and 2017
for the Years Ended December 31, 2019, 2018 and 2017
Notes to the Consolidated Financial Statements:
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 INDEX TO FINANCIAL STATEMENTS
CHESAPEAKE ENERGY CORPORATION
  Page
Supplementary Information: 
 
Consolidated Balance Sheets as of December 31, 2016 and 2015
Consolidated Statements of Operations for the
Years Ended December 31, 2016, 2015 and 2014
Consolidated Statements of Comprehensive Income (Loss) for the
Years Ended December 31, 2016, 2015 and 2014
Consolidated Statements of Cash Flows for the
Years Ended December 31, 2016, 2015 and 2014
Consolidated Statements of Stockholders’ Equity for the
Years Ended December 31, 2016, 2015 and 2014
Notes to the ConsolidatedQuarterly Financial Statements
 

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MANAGEMENT'S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING
It is the responsibility of the management of Chesapeake Energy Corporation to establish and maintain adequate internal control over financial reporting (as defined in RulesRule 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended)1934).
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Under the supervision and with the participation of our management, including the CEO and the CFO, we carried out an evaluation of the effectiveness of our internal control over financial reporting as of December 31, 2016 using the criteria established in “Internal Control-Integrated Framework” (2013), issued by Management utilized the Committee of Sponsoring Organizations of the Treadway Commission (COSO).Commission's Internal Control-Integrated Framework (2013) in conducting the required assessment of effectiveness of the Company's internal control over financial reporting.
A material weakness is a deficiency, or a combinationManagement has performed an assessment of deficiencies, inthe effectiveness of the Company's internal control over financial reporting such that there is a reasonable possibility that a material misstatement ofand has determined the Company’s annual or interim financial statements will not be prevented or detected on a timely basis.
    We did not effectively design and maintain controls over the review of the valuation of proved oil and natural gas properties and the accuracy of impairment of oil and natural gas properties. Specifically, the review of the initial configuration of a newly implemented tool used to calculate basis price differentials did not detect an error in the formula in the calculations, and the manual interface control to agree data used in the tool to the general ledger was not designed to validate the data at an appropriately disaggregated level.
The control deficiency did not result in a material misstatement to the Company’s consolidated financial statements for the year ended December 31, 2016. However, the control deficiency could result in misstatements of the aforementioned account balances or disclosures that would result in a material misstatement to the annual or interim consolidated financial statements that would not be prevented or detected. Accordingly, our management has determined that this control deficiency constitutes a material weakness.
Because of this material weakness, management concluded that the Company did not maintain effective internal control over financial reporting was effective as of December 31, 2016.2019.
The effectiveness of the Company's internal control over financial reporting, as of December 31, 20162019, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in its report, which appears herein.
/s/ ROBERT D. LAWLER       
Robert D. Lawler
President and Chief Executive Officer
   
/s/ DOMENIC J. DELL'OSSO, JR. 
Domenic J. Dell'Osso, Jr.
Executive Vice President and Chief Financial Officer
     
     
March 3, 2017February 27, 2020
     

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Report of Independent Registered Public Accounting Firm


Tothe Board of Directors and ShareholdersStockholders of Chesapeake Energy Corporation


In our opinion,Opinions on the consolidated financial statements listed inFinancial Statements and Internal Control over Financial Reporting

We have audited the accompanying index present fairly, in all material respects, the financial positionconsolidated balance sheets of Chesapeake Energy Corporation and its subsidiaries at(the “Company”) as of December 31, 20162019 and 2015,2018, and the resultsrelated consolidated statements of their operations, of comprehensive income (loss), of stockholders’ equity and theirof cash flows for each of the three years in the period ended December 31, 20162019, including the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2019 and 2018, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2019 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company did not maintain,maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016,2019, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) because a material weaknessCOSO.

Change in internal control over financial reporting relatedAccounting Principle

As discussed in Note 2 to the review ofconsolidated financial statements, the valuation of provedCompany changed the manner in which it accounts for oil and natural gas propertiesexploration and development activities from the accuracy of impairment of oil and natural gas properties existedfull cost method to the successful efforts method in 2019. This matter is also discussed below as of that date. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the annual or interim financial statements will not be prevented or detected on a timely basis. The material weakness referred to above is described in the accompanying Management's Report on Internal Control over Financial Reporting. We considered this material weakness in determining the nature, timing, and extent ofcritical audit tests applied in our audit of the 2016 consolidated financial statements, and our opinion regarding the effectiveness of the Company’s internal control over financial reporting does not affect our opinion on those consolidated financial statements. matter.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in management's report referred to above.the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express opinions on thesethe Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our integrated audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States).PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence supportingregarding the amounts and disclosures in the consolidated financial statements, assessingstatements. Our audits also included evaluating the accounting principles used and significant estimates made by management, andas well as evaluating the overall presentation of the consolidated financial statement presentation.statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.


As discussed in Note 1 to the consolidated financial statements, the Company changed the manner in which it accounts for debt issuance costs in 2016.Definition and Limitations of Internal Control over Financial Reporting


A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance
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with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.


Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.


Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that (i) relate to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidatedfinancial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Acquisition of Proved Oil and Natural Gas Properties and Related Fair Value Estimate

As described in Note 3 to the consolidated financial statements, $3.3 billion of the purchase price from the February 2019 business combination of Wildhorse Resource Development Corporation was allocated to proved oil and natural gas properties. Management applied the applicable accounting guidance, under which an acquirer should recognize the identifiable assets acquired and the liabilities assumed on the acquisition date at fair value. The fair value estimate of proved oil and natural gas properties as of the acquisition date was based on estimated proved oil and natural gas reserves and related future net cash flows discounted using a weighted average cost of capital, including estimates of future production rates and future development costs. As disclosed by management, the accuracy of the reserve estimates is a function of the quality of data available and of engineering and geological interpretation and judgment. In addition, estimates of reserves may be revised based on actual production, results of subsequent exploration and development activities, recent commodity prices, operating costs and other factors. The estimates of oil and natural gas reserves have been developed by specialists, specifically petroleum engineers.

The principal considerations for our determination that performing procedures relating to the acquisition of proved oil and natural gas properties and related fair value estimate is a critical audit matter are there was significant judgment by management, including the use of specialists, when developing the estimates of proved oil and natural gas reserves. This in turn led to a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating the significant assumptions used in developing the estimates, including future production rates, future development costs, and the weighted average cost of capital. In addition, the audit effort involved the use of professionals with specialized skill and knowledge in evaluating the audit evidence obtained from these procedures.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the acquisition accounting, including the purchase price allocation based upon estimates of fair value, management’s estimates of proved oil and natural gas reserves in determining the fair value of acquired proved oil and natural gas properties, and the calculation of the weighted average cost of capital. These procedures also included, among others, evaluating the significant assumptions used by management in developing these estimates, including future production rates, future development costs, and the weighted average cost of capital. The work of management’s specialists was used in performing the procedures to evaluate the reasonableness of the estimates of proved oil and natural gas reserves. As a basis for this work, the specialists’ qualifications and objectivity were understood, as well as the methods and assumptions used by the specialists. The procedures performed also included tests of the data used by the specialists and an evaluation of the specialists’ findings. Evaluating the significant assumptions relating to the estimates of proved oil and gas reserves also involved obtaining evidence to support the reasonableness of the
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assumptions, including whether the assumptions used were reasonable considering the past performance of the acquired entity, and whether they were consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in evaluating the appropriateness of management’s model and evaluating the reasonableness of the assumptions used in the model.
The Impact of Proved Oil and Natural Gas Reserves on Proved Oil and Natural Gas Properties, Net

The Company’s property and equipment, net balance was $14.8 billion as of December 31, 2019, and depreciation, depletion and amortization (DD&A) expense for the year ended December 31, 2019 was $2.3 billion, both of which substantially relate to proved oil and natural gas properties. As described in Note 1 to the consolidated financial statements, the Company follows the successful efforts method of accounting for its oil and natural gas properties. Costs of drilling and equipping successful wells, costs to construct or acquire facilities, and associated asset retirement costs are depreciated using the unit-of-production (UOP) method based on total estimated proved developed oil and natural gas reserves. Costs of acquiring proved properties, including leasehold acquisition costs transferred from unproved properties, are depleted using the UOP method based on total estimated proved developed and undeveloped reserves. When circumstances indicate that the carrying value of proved oil and gas properties may not be recoverable, management compares unamortized capitalized costs to the expected undiscounted pre-tax future cash flows for the associated assets grouped at the lowest level for which identifiable cash flows are independent of cash flows of other assets. If the expected undiscounted pre-tax future cash flows, based on management’s estimate of future crude oil and natural gas prices, operating costs, anticipated production from proved reserves and other relevant data, are lower than the unamortized capitalized costs, the capitalized costs are reduced to fair value. Fair value is generally estimated using the income approach. The expected future cash flows used for impairment reviews and related fair value measurements are typically based on judgmental assessments of future production volumes, commodity prices, operating costs, and capital investment plans, considering all available information at the date of review. The estimates of oil and natural gas reserves have been developed by specialists, specifically petroleum engineers.

The principal considerations for our determination that performing procedures relating to the impact of proved oil and natural gas reserves on proved oil and natural gas properties, net is a critical audit matter are there was significant judgment by management, including the use of specialists, when developing the estimates of proved oil and natural gas reserves. This in turn led to a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating the significant assumptions used in developing those estimates, including future production, future pricing differentials, and future development costs.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s estimates of proved oil and natural gas reserves, the calculation of DD&A expense, and the impairment assessment of proved oil and natural gas properties. These procedures also included, among others, evaluating the significant assumptions used by management in developing these estimates, including future production, future pricing differentials, and future development costs. Procedures were also performed to test the unit-of-production rate used to calculate DD&A expense. The work of management’s specialists was used in performing the procedures to evaluate the reasonableness of the estimates of proved oil and natural gas reserves. As a basis for this work, the specialists’ qualifications and objectivity were understood, as well as the methods and assumptions used by the specialists. The procedures performed also included tests of the data used by the specialists and an evaluation of the specialists’ findings. Evaluating the significant assumptions relating to the estimates of proved oil and natural gas reserves also involved obtaining evidence to support the reasonableness of the assumptions, including whether the assumptions used were reasonable considering the past performance of the Company, and whether they were consistent with evidence obtained in other areas of the audit.

Change in Accounting from the Full Cost Method to the Successful Efforts Method

As described above and in Note 2, during the first quarter of 2019, the Company voluntarily changed its method of accounting for oil and natural gas exploration and development activities from the full cost method to the successful efforts method. Accordingly, financial information for prior periods has been recast to reflect retrospective application of the successful efforts method. As a result of its change in accounting principle from the full cost method to the successful efforts method, management recorded significant impairments of its proved oil and natural gas properties for historical periods to arrive at the recast financial information. As described in Note 1, under the successful efforts method of accounting, costs of drilling and equipping successful wells, costs to construct or acquire facilities, and associated asset retirement costs are depreciated using the unit-of-production (UOP) method based on total estimated
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proved developed oil and gas reserves. Costs of acquiring proved properties, including leasehold acquisition costs transferred from unproved properties, are depleted using the UOP method based on total estimated proved developed and undeveloped reserves. As disclosed by management,estimates of oil and natural gas reserves and their values, future production rates, future development costs and commodity pricing differentials, and the weighted average cost of capital are the most significant of these estimates. The accuracy of the reserve estimates is a function of the quality of data available and of engineering and geological interpretation and judgment. In addition, estimates of reserves may be revised based on actual production, results of subsequent exploration and development activities, recent commodity prices, operating costs and other factors. The estimates of oil and natural gas reserves have been developed by specialists, specifically petroleum engineers.

The principal considerations for our determination that performing procedures relating to the change in accounting from the full cost method to the successful efforts method is a critical audit matter are there was significant judgment by management, including the use of specialists, when developing the estimates of proved oil and natural gas reserves for purposes of reflecting the retrospective application of the successful efforts method, including the calculation of DD&A expense, the impairment assessments performed, and the calculation of impairment charges recorded in prior periods. This in turn led to a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating the significant assumptions used in developing those estimates, including the weighted average cost of capital. In addition, the audit effort involved the use of professionals with specialized skill and knowledge in evaluating the audit evidence obtained from these procedures.

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to the change in accounting from the full cost method to the successful efforts method, management’s retrospective application of the successful efforts method, including estimates of proved oil and natural gas reserves, the calculation of DD&A expense, the impairment assessments of proved oil and natural gas reserves, and the calculation of impairment charges recorded for the historical recast periods. These procedures also included, among others, evaluating the significant assumptions used by management in developing these estimates, including the weighted average cost of capital. Procedures were also performed to test the unit-of-production rate used to calculate DD&A expense, the impairment assessments, and the calculation of the impairment charges recorded. The work of management’s specialists was used in performing the procedures to evaluate the reasonableness of the estimates of proved oil and natural gas reserves. As a basis for this work, the specialists’ qualifications and objectivity were understood, as well as the methods and assumptions used by the specialists. The procedures performed also included tests of the data used by the specialists and an evaluation of the specialists’ findings. Evaluating the significant assumptions relating to the estimates of proved oil and natural gas reserves for the historical recast periods also involved obtaining evidence to support the reasonableness of the assumptions, including whether the assumptions were reasonable considering the past performance of the Company, and whether they were consistent with evidence in other areas of the audit for the historical recast periods. Professionals with specialized skill and knowledge were used to assist in evaluating the appropriateness of management’s model and evaluating the reasonableness of the assumptions used in the model.

/s/ PricewaterhouseCoopers LLP
Oklahoma City, Oklahoma
March 3, 2017February 27, 2020


We have served as the Company’s auditor since 1992.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS



 December 31, December 31,
 2016 2015 2019 2018
 ($ in millions) ($ in millions)
CURRENT ASSETS:        
Cash and cash equivalents ($1 and $1 attributable to our VIE) $882
 $825
Cash and cash equivalents ($2 and $1 attributable to our VIE) $6
 $4
Accounts receivable, net 1,057
 1,129
 990
 1,247
Short-term derivative assets 
 366
 134
 209
Other current assets 203
 160
 121
 138
Total Current Assets 2,142
 2,480
 1,251
 1,598
PROPERTY AND EQUIPMENT:        
Oil and natural gas properties, at cost based on full cost accounting:    
Proved oil and natural gas properties
($488 and $488 attributable to our VIE)
 66,451
 63,843
Oil and natural gas properties, at cost based on successful efforts accounting:    
Proved oil and natural gas properties
($755 and $755 attributable to our VIE)
 30,765
 25,407
Unproved properties 4,802
 6,798
 2,173
 1,561
Other property and equipment 2,053
 2,927
 1,810
 1,721
Total Property and Equipment, at Cost 73,306
 73,568
 34,748
 28,689
Less: accumulated depreciation, depletion and amortization
(($458) and ($428) attributable to our VIE)
 (62,726) (59,365)
Less: accumulated depreciation, depletion and amortization
(($713) and ($707) attributable to our VIE)
 (20,002) (17,886)
Property and equipment held for sale, net 29
 95
 10
 15
Total Property and Equipment, Net 10,609
 14,298
 14,756
 10,818
LONG-TERM ASSETS:        
Long-term derivative assets 
 246
 
 76
Other long-term assets 277
 290
 186
 243
TOTAL ASSETS $13,028
 $17,314
 $16,193
 $12,735
        
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS – (Continued)


 December 31, December 31,
 2016 2015 2019 2018
 ($ in millions) ($ in millions)
CURRENT LIABILITIES:        
Accounts payable $672
 $944
 $498
 $763
Current maturities of long-term debt, net 503
 381
 385
 381
Accrued interest 113
 101
 75
 141
Short-term derivative liabilities 562
 40
 2
 3
Other current liabilities ($3 and $8 attributable to our VIE) 1,798
 2,219
Other current liabilities ($1 and $2 attributable to our VIE) 1,432
 1,599
Total Current Liabilities 3,648
 3,685
 2,392
 2,887
LONG-TERM LIABILITIES:        
Long-term debt, net 9,938
 10,311
 9,073
 7,341
Long-term derivative liabilities 15
 60
 2
 
Asset retirement obligations, net of current portion 247
 452
 200
 155
Other long-term liabilities 383
 409
 125
 219
Total Long-Term Liabilities 10,583
 11,232
 9,400
 7,715
CONTINGENCIES AND COMMITMENTS (Note 4) 
 
CONTINGENCIES AND COMMITMENTS (Note 6)
 

 

EQUITY:        
Chesapeake Stockholders’ Equity:        
Preferred stock, $0.01 par value, 20,000,000 shares authorized:
5,839,506 and 7,251,515 shares outstanding
 1,771
 3,062
Common stock, $0.01 par value, 1,500,000,000 and 1,000,000,000 shares authorized: 896,279,353 and 664,795,509 shares issued 9
 7
Preferred stock, $0.01 par value, 20,000,000 shares authorized:
5,563,458 and 5,603,458 shares outstanding
 1,631
 1,671
Common stock, $0.01 par value,
3,000,000,000 and 2,000,000,000 shares authorized:
1,954,558,617 and 913,715,512 shares issued
 19
 9
Additional paid-in capital 14,486
 12,403
 16,954
 14,378
Accumulated deficit (17,603) (13,202) (14,220) (13,912)
Accumulated other comprehensive loss (96) (99)
Less: treasury stock, at cost;
1,220,504 and 1,437,724 common shares
 (27) (33)
Total Chesapeake Stockholders’ Equity (Deficit) (1,460) 2,138
Accumulated other comprehensive income (loss) 12
 (23)
Less: treasury stock, at cost;
5,244,992 and 3,246,553 common shares
 (32) (31)
Total Chesapeake Stockholders’ Equity 4,364
 2,092
Noncontrolling interests 257
 259
 37
 41
Total Equity (Deficit) (1,203) 2,397
Total Equity 4,401
 2,133
TOTAL LIABILITIES AND EQUITY $13,028
 $17,314
 $16,193
 $12,735
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS




 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in million except per share data) ($ in millions except per share data)
REVENUES:      
REVENUES AND OTHER:      
Oil, natural gas and NGL $3,288
 $5,391
 $10,354
 $4,522
 $5,155
 $4,985
Marketing, gathering and compression 4,584
 7,373
 12,225
Oilfield services 
 
 546
Marketing 3,967
 5,076
 4,511
Total Revenues 7,872
 12,764
 23,125
 8,489
 10,231
 9,496
Other 63
 63
 67
Gains (losses) on sales of assets 43
 (264) 476
Total Revenues and Other 8,595
 10,030
 10,039
OPERATING EXPENSES:            
Oil, natural gas and NGL production 710
 1,046
 1,208
 520
 474
 517
Oil, natural gas and NGL gathering, processing and transportation 1,855
 2,119
 2,174
 1,082
 1,398
 1,471
Production taxes 74
 99
 232
Marketing, gathering and compression 4,778
 7,130
 12,236
Oilfield services 
 
 431
Severance and ad valorem taxes 224
 189
 134
Exploration 84
 162
 235
Marketing 4,003
 5,158
 4,598
General and administrative 240
 235
 322
 315
 335
 333
Restructuring and other termination costs 6
 36
 7
 12
 38
 
Provision for legal contingencies 123
 353
 234
Oil, natural gas and NGL depreciation, depletion and amortization 1,003
 2,099
 2,683
Depreciation and amortization of other assets 104
 130
 232
Impairment of oil and natural gas properties 2,564
 18,238
 
Impairments of fixed assets and other 838
 194
 88
Net (gains) losses on sales of fixed assets (12) 4
 (199)
Provision for legal contingencies, net 19
 26
 (38)
Depreciation, depletion and amortization 2,264
 1,737
 1,697
Impairments 11
 131
 814
Other operating expense 92
 
 416
Total Operating Expenses 12,283
 31,683
 19,648
 8,626
 9,648
 10,177
INCOME (LOSS) FROM OPERATIONS (4,411) (18,919) 3,477
 (31) 382
 (138)
OTHER INCOME (EXPENSE):            
Interest expense (296) (317) (89) (651) (633) (601)
Losses on investments (8) (96) (75)
Impairments of investments (119) (53) (5)
Net gain (loss) on sales of investments (10) 
 67
Gains (losses) on purchases or exchanges of debt 236
 279
 (197)
Gains (losses) on investments (71) 139
 
Gains on purchases or exchanges of debt 75
 263
 233
Other income 19
 8
 22
 39
 67
 6
Total Other Expense (178) (179) (277) (608) (164) (362)
INCOME (LOSS) BEFORE INCOME TAXES (4,589) (19,098) 3,200
 (639) 218
 (500)
INCOME TAX EXPENSE (BENEFIT):            
Current income taxes (19) (36) 47
 (26) 
 (9)
Deferred income taxes (171) (4,427) 1,097
 (305) (10) 11
Total Income Tax Expense (Benefit) (190) (4,463) 1,144
 (331) (10) 2
NET INCOME (LOSS) (4,399) (14,635) 2,056
 (308) 228
 (502)
Net income attributable to noncontrolling interests (2) (50) (139) 
 (2) (3)
NET INCOME (LOSS) ATTRIBUTABLE TO CHESAPEAKE (4,401) (14,685) 1,917
 (308) 226
 (505)
Preferred stock dividends (97) (171) (171) (91) (92) (85)
Loss on exchange of preferred stock (428) 
 
 (17) 
 (41)
Repurchase of preferred shares of CHK Utica 
 
 (447)
Earnings allocated to participating securities 
 
 (26) 
 (1) 
NET INCOME (LOSS) AVAILABLE TO COMMON STOCKHOLDERS $(4,926) $(14,856) $1,273
 $(416) $133
 $(631)
EARNINGS (LOSS) PER COMMON SHARE:            
Basic $(6.45) $(22.43) $1.93
 $(0.25) $0.15
 $(0.70)
Diluted $(6.45) $(22.43) $1.87
 $(0.25) $0.15
 $(0.70)
CASH DIVIDEND DECLARED PER COMMON SHARE $
 $0.0875
 $0.35
WEIGHTED AVERAGE COMMON AND COMMON
EQUIVALENT SHARES OUTSTANDING (in millions):
            
Basic 764
 662
 659
 1,665
 909
 906
Diluted 764
 662
 772
 1,665
 909
 906
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)





  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
NET INCOME (LOSS) $(4,399) $(14,635) $2,056
OTHER COMPREHENSIVE INCOME (LOSS),
NET OF INCOME TAX:
      
Unrealized gains (losses) on derivative instruments,
net of income tax expense (benefit) of ($14), $12 and $0
 (13) 20
 1
Reclassification of losses on settled derivative instruments,
net of income tax expense of $18, $15 and $14
 16
 24
 23
Reclassification of (gains) losses on investment,
net of income tax expense (benefit) of $0, $0 and ($3)
 
 
 (5)
Other Comprehensive Income (Loss) 3
 44
 19
COMPREHENSIVE INCOME (LOSS) (4,396) (14,591) 2,075
COMPREHENSIVE INCOME ATTRIBUTABLE TO
NONCONTROLLING INTERESTS
 (2) (50) (139)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO CHESAPEAKE $(4,398) $(14,641) $1,936
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
NET INCOME (LOSS) $(308) $228
 $(502)
OTHER COMPREHENSIVE INCOME, NET OF INCOME TAX:      
Unrealized gains (losses) on derivative instruments, net of income tax benefit of $0, $0, and $0 
 
 5
Reclassification of losses on settled derivative instruments, net of income tax expense of $0, $0 and $0 35
 34
 34
Other Comprehensive Income 35
 34
 39
COMPREHENSIVE INCOME (LOSS) (273) 262
 (463)
COMPREHENSIVE INCOME ATTRIBUTABLE TO
NONCONTROLLING INTERESTS
 
 (2) (3)
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO CHESAPEAKE $(273) $260
 $(466)




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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS







 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
CASH FLOWS FROM OPERATING ACTIVITIES:            
NET (INCOME) LOSS $(4,399) $(14,635) $2,056
ADJUSTMENTS TO RECONCILE NET LOSS TO CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES:      
NET INCOME (LOSS) $(308) $228
 $(502)
ADJUSTMENTS TO RECONCILE NET INCOME (LOSS) TO CASH
PROVIDED BY OPERATING ACTIVITIES:
      
Depreciation, depletion and amortization 1,107
 2,229
 2,915
 2,264
 1,737
 1,697
Deferred income tax expense (benefit) (171) (4,427) 1,097
 (305) (10) 11
Derivative (gains) losses, net 739
 (932) (1,102) (3) 26
 (409)
Cash receipts (payments) on derivative settlements, net 448
 1,123
 (253) 202
 (345) (18)
Stock-based compensation 52
 78
 59
 30
 32
 49
Impairment of oil and natural gas properties 2,564
 18,238
 
Net (gains) losses on sales of fixed assets (12) 4
 (199)
Renegotiation of natural gas gathering contracts (115) 
 
Impairments of fixed assets and other 467
 175
 58
Losses on investments 8
 96
 75
Net (gain) loss on sales of investment 10
 
 (67)
Impairments of investments 119
 53
 5
(Gains) losses on purchases or exchanges of debt (236) (304) 63
Restructuring and other termination costs 3
 (14) (15)
Provision for legal contingencies 87
 340
 234
(Gains) losses on sales of assets (43) 264
 (476)
Impairments 11
 131
 814
Exploration 49
 96
 214
(Gains) losses on investments 63
 (139) 
Gains on purchases or exchanges of debt (79) (263) (235)
Other (143) 244
 220
 (4) (118) (132)
(Increase) decrease in accounts receivable and other assets 21
 1,186
 (21) 376
 16
 (163)
Decrease in accounts payable, accrued liabilities and other (753) (2,220) (491)
Net Cash Provided By (Used In) Operating Activities (204) 1,234
 4,634
(Decrease) increase in accounts payable, accrued liabilities and other (630) 75
 (375)
Net Cash Provided By Operating Activities 1,623
 1,730
 475
CASH FLOWS FROM INVESTING ACTIVITIES:            
Drilling and completion costs (1,295) (3,095) (4,581) (2,180) (1,848) (2,113)
Business combination, net (353) 
 
Acquisitions of proved and unproved properties (788) (533) (1,311) (35) (128) (88)
Proceeds from divestitures of proved and unproved properties 1,406
 189
 5,813
 130
 2,231
 1,249
Additions to other property and equipment (37) (143) (726) (48) (21) (21)
Proceeds from sales of other property and equipment 131
 89
 1,003
 6
 147
 55
Cash paid for title defects (69) 
 
Additions to investments 
 (1) 
Proceeds from sales of investments 
 
 239
 
 74
 
Decrease in restricted cash 
 52
 37
Other (8) (9) (20)
Net Cash Provided By (Used In) Investing Activities (660) (3,451) 454
 (2,480) 455
 (918)
            
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS – (Continued)




 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
CASH FLOWS FROM FINANCING ACTIVITIES:            
Proceeds from revolving credit facility borrowings 10,676
 11,697
 7,771
Payments on revolving credit facility borrowings (10,180) (12,059) (6,990)
Proceeds from issuance of senior notes, net 108
 1,236
 1,585
Proceeds from issuance of term loan, net 1,455
 
 
Cash paid to purchase debt (2,734) (508) (3,362) (1,073) (2,813) (2,592)
Proceeds from revolving credit facilities borrowings 5,146
 
 7,406
Payments on revolving credit facilities borrowings (5,146) 
 (7,788)
Proceeds from issuance of senior notes,
net of discount and offering costs
 2,210
 
 2,966
Proceeds from issuance of term loan, net of offering costs 1,476
 
 
Proceeds from issuance of oilfield services term loan,
net of issuance costs
 
 
 394
Proceeds from issuance of oilfield services senior notes,
net of issuance costs
 
 
 494
Cash held and retained by SSE at spin-off 
 
 (8)
Cash paid for common stock dividends 
 (118) (234)
Extinguishment of other financing 
 (122) 
Cash paid for preferred stock dividends 
 (171) (171) (91) (92) (183)
Cash paid on financing derivatives 
 
 (53)
Cash paid to repurchase noncontrolling interest of CHK C-T 
 (143) 
Cash paid to repurchase preferred shares of CHK Utica 
 
 (1,254)
Distributions to noncontrolling interest owners (10) (85) (173) (4) (6) (8)
Other (21) (41) (34) (32) (27) (17)
Net Cash Provided By (Used In) Financing Activities 921
 (1,066) (1,817) 859
 (2,186) (434)
Net increase (decrease) in cash and cash equivalents 57
 (3,283) 3,271
 2
 (1) (877)
Cash and cash equivalents, beginning of period 825
 4,108
 837
 4
 5
 882
Cash and cash equivalents, end of period $882
 $825
 $4,108
 $6
 $4
 $5
            
Supplemental disclosures to the consolidated statements of cash flows are presented below:Supplemental disclosures to the consolidated statements of cash flows are presented below:  Supplemental disclosures to the consolidated statements of cash flows are presented below:  
            
 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
SUPPLEMENTAL CASH FLOW INFORMATION:            
Interest paid, net of capitalized interest $344
 $235
 $96
 $691
 $664
 $667
Income taxes paid, net of refunds received $(27) $44
 $10
 $(6) $(3) $(16)
            
SUPPLEMENTAL DISCLOSURE OF SIGNIFICANT NON-CASH INVESTING AND FINANCING ACTIVITIES:            
Common stock issued for business combination $2,037
 $
 $
Debt exchanged for common stock $693
 $
 $
Preferred stock exchanged for common stock $40
 $
 $
Change in senior notes exchanged $971
 $
 $
Change in accrued drilling and completion costs $(23) $(148) $(84) $(19) $174
 $14
Change in accrued acquisitions of proved and unproved properties $(13) $55
 $(74)
Change in divested proved and unproved properties $52
 $35
 $38
Divestiture of proved and unproved CHK C-T properties $
 $1,024
 $
Debt exchanged for common stock $471
 $
 $
Repurchase of noncontrolling interest in CHK C-T $
 $(872) $
Acquisition of other property and equipment including assets under finance lease $
 $27
 $


TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY







 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
PREFERRED STOCK:            
Balance, beginning of period $3,062
 $3,062
 $3,062
 $1,671
 $1,671
 $1,771
Conversions of 1,412,009, 0 and 0 shares of preferred stock for common stock (1,291) 
 
Exchange/conversions of 40,000, 0 and 236,048 shares of
preferred stock for common stock
 (40) 
 (100)
Balance, end of period 1,771
 3,062
 3,062
 1,631
 1,671
 1,671
COMMON STOCK:            
Balance, beginning of period 7
 7
 7
 9
 9
 9
Exchange of senior notes and contingent convertible notes 1
 
 
Conversion of preferred stock 1
 
 
Common shares issued for WildHorse Merger 7
 
 
Exchange of senior notes and convertible notes 3
 
 
Balance, end of period 9
 7
 7
 19
 9
 9
ADDITIONAL PAID-IN CAPITAL:            
Balance, beginning of period 12,403
 12,531
 12,446
 14,378
 14,437
 14,486
Common shares issued for WildHorse Merger 2,030
 
 
Stock-based compensation 64
 71
 47
 27
 33
 54
Exchange of contingent convertible notes for 55,427,782, 0 and 0 shares of common stock 241
 
 
Exchange of senior notes for 53,923,925, 0 and 0 shares of common stock 229
 
 
Conversion of preferred stock for 120,186,195, 0 and 0 shares of common stock 1,290
 
 
Issuance of 5.5% convertible senior notes due 2026 445
 
 
Tax effect on the issuance of 5.5% convertible senior notes
due 2026
 (165) 
 
Equity component of contingent convertible notes
repurchased, net of tax
 (16) 
 
Exercise of stock options 
 
 23
Dividends on common stock 
 (59) 
Exchange of contingent convertible notes for 73,389,094, 0 and 0 shares of common stock 134
 
 
Exchange of senior notes for 235,563,519, 0 and 0 shares of common stock 438
 
 
Exchange of preferred stock for 10,367,950, 0, and
9,965,835 shares of common stock
 40
 
 100
Equity component of contingent convertible notes repurchased (2) 
 (20)
Dividends on preferred stock 
 (128) 
 (91) (92) (183)
Issuance costs (5) 
 
Increase (decrease) in tax benefit from stock-based compensation 
 (12) 15
Balance, end of period 14,486
 12,403
 12,531
 16,954
 14,378
 14,437
RETAINED EARNINGS (ACCUMULATED DEFICIT):            
Balance, beginning of period (13,202) 1,483
 688
 (13,912) (14,130) (13,625)
Net income (loss) attributable to Chesapeake (4,401) (14,685) 1,917
 (308) 226
 (505)
Dividends on common stock 
 
 (234)
Dividends on preferred stock 
 
 (171)
Spin-off of oilfield services business 
 
 (270)
Repurchase of preferred shares of CHK Utica 
 
 (447)
Cumulative effect of change in accounting principle 
 (8) 
Balance, end of period (17,603) (13,202) 1,483
 (14,220) (13,912) (14,130)
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS):            
Balance, beginning of period (99) (143) (162) (23) (57) (96)
Hedging activity 3
 44
 24
 35
 34
 39
Investment activity 
 
 (5)
Balance, end of period (96) (99) (143) 12
 (23) (57)
      
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - (Continued)



 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
TREASURY STOCK – COMMON:            
Balance, beginning of period (33) (37) (46) (31) (31) (27)
Purchase of 37,871, 54,493 and 34,678 shares for company benefit plans 
 (1) (1)
Release of 255,091, 231,081 and 422,395 shares from company benefit plans 6
 5
 10
Purchase of 2,878,234, 1,510,022, and 1,206,419 shares for company benefit plans (7) (4) (7)
Release of 879,795, 503,863 and 186,529 shares from company benefit plans 6
 4
 3
Balance, end of period (27) (33) (37) (32) (31) (31)
TOTAL CHESAPEAKE STOCKHOLDERS’ EQUITY (DEFICIT) (1,460) 2,138
 16,903
TOTAL CHESAPEAKE STOCKHOLDERS’ EQUITY 4,364
 2,092
 1,899
NONCONTROLLING INTERESTS:            
Balance, beginning of period 259
 1,302
 2,145
 41
 44
 49
Net income attributable to noncontrolling interests 2
 50
 139
 
 2
 3
Distributions to noncontrolling interest owners (4) (78) (169) (4) (5) (8)
Repurchase of noncontrolling interest of CHK C-T 
 (1,015) 
Repurchase of preferred shares of CHK Utica 
 
 (807)
Deconsolidation of investments, net 
 
 (6)
Balance, end of period 257
 259
 1,302
 37
 41
 44
TOTAL EQUITY (DEFICIT) $(1,203) $2,397
 $18,205
TOTAL EQUITY $4,401
 $2,133
 $1,943
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS




1.Basis of Presentation and Summary of Significant Accounting Policies
Description of Company
Chesapeake Energy Corporation ("Chesapeake", “we,” “our”, “us” or the "Company") is an oil and natural gas exploration and production company engaged in the acquisition, exploration and development of properties for the production of oil, natural gas and natural gas liquids (NGL) from underground reservoirs. We also own oil and natural gas marketing and compression businesses. As of December 31, 2016, we have sold substantially all of our assets associated with our natural gas gathering business, and prior to June 30, 2014, we owned an oilfield services business (see Note 13). Our operations are located onshore in the United States.
Basis of Presentation
The accompanying consolidated financial statements of Chesapeake were prepared in accordance with accounting principles generally accepted in the United States (U.S. GAAP)GAAP and include the accounts of our direct and indirect wholly owned subsidiaries and entities in which Chesapeake has a controlling financial interest. Intercompany accounts and balances have been eliminated.
Recast Financial Information for Change in Accounting Principle
In the first quarter of 2019, we voluntarily changed our method of accounting for oil and natural gas exploration and development activities from the full cost method to the successful efforts method. Accordingly, financial information for prior periods presented herein has been recast to reflect retrospective application of the successful efforts method. Although the full cost method of accounting for oil and natural gas exploration and development activities continues to be an accepted alternative, the successful efforts method of accounting is the generally preferred method of the SEC and, because it is more widely used in the industry, we expect the change to improve the comparability of our financial statements to our peers. We also believe the successful efforts method provides a more representational depiction of assets and operating results and provides for our investments in oil and natural gas properties to be assessed for impairment in accordance with Accounting Standards Codification (ASC) Topic 360, Property Plant and Equipment, rather than valuations based on prices and costs prescribed under the full cost method as of the balance sheet date. For detailed information regarding the effects of the change to the successful efforts method, see Note 2.
Accounting Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates ofrelated disclosures in the financial statementsstatements. Management evaluates its estimates and related assumptions regularly, including those related to the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Estimatesimpairment of oil and natural gas reserves and their values, future production rates and future costs and expenses are the most significant of our estimates. The accuracy of any reserve estimate is a function of the quality of data available and of engineering and geological interpretation and judgment. In addition, estimates of reserves may be revised based on actual production, results of subsequent exploration and development activities, recent commodity prices, operating costs and other factors. These revisions could materially affect our financial statements. The volatility of commodity prices results in increased uncertainty inherent in these estimates and assumptions. Changes in oil, natural gas or NGL prices could result in actual results differing significantly from our estimates.
Risks and Uncertainties
Our ability to grow, make capital expenditures and service our debt depends primarily upon the prices we receive for the oil, natural gas and natural gas liquids (NGL) we sell. Substantial expenditures are required to replace reserves, sustain production and fund our business plans. Historically,properties, oil and natural gas prices have been very volatile, and may bereserves, derivatives, income taxes, unevaluated properties not subject to wide fluctuationsevaluation, impairment of other property and equipment, environmental remediation costs, asset retirement obligations, litigation and regulatory proceedings and fair values. Changes in the future. The substantial declinefacts and circumstances or additional information may result in oil, natural gasrevised estimates, and NGL pricesactual results may differ significantly from 2014 levels has negatively affected the amount of liquidity we have available for capital expenditures and debt service. A substantial or extended decline in oil, natural gas and NGL prices could have a material impact on our financial position, results of operations, cash flows and on the quantities of reserves that we may economically produce. Other risks and uncertainties that could affect us in a low commodity price environment include, but are not limited to, counterparty credit risk for our receivables, access to capital markets, regulatory risks and our ability to meet financial ratios and covenants in our financing agreements.these estimates.
Consolidation
Chesapeake consolidatesWe consolidate entities in which we have a controlling financial interest. We consolidate subsidiaries in which we hold, directly or indirectly, more than 50% of the voting rights and variable interest entities (VIEs) in which Chesapeake iswe are the primary beneficiary. We use the equity method of accounting to record our net interests where Chesapeake has the ability to exercise significant influence through its investment. Under the equity method, our share of net income (loss) is included in our consolidated statements of operations according to our equity ownership or according to the terms of the applicable governing instrument. See Note 14 for further discussion of our investments. Undivided interests in oil and natural gas properties are consolidated on a proportionate basis.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Noncontrolling Interests
Noncontrolling interests represent third-party equity ownership in certain of our consolidated subsidiaries and are presented as a component of equity. See Note 8 for further discussion of noncontrolling interests.
Variable Interest Entities
VIEs are entities that, by design, either (i) lack sufficient equity to permit the entity to finance its activities independently, or (ii) have equity holders that do not have the power to direct the activities of the entity that most significantly impact its economic performance, the obligation to absorb the entity’s losses, or the right to receive the entity’s residual returns. We consolidate a VIE when we are the primary beneficiary, which is the party that has both (i) the power to direct the activities that most significantly impact the VIE’s economic performance and (ii) through its interests in the VIE, the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.
In order to determine whether we own a variable interest in a VIE, we perform a qualitative analysis of the entity’s design, organizational structure, primary decision makers and relevant agreements. We continually monitor our consolidated VIE to determine if any events have occurred that could cause the primary beneficiary to change. See Note 1511 for further discussion of VIEs.our VIE. We use the equity method of accounting to record our net interests where we have the ability to exercise significant influence through our investment but lack a controlling financial interest. Under the equity method, our share of net income (loss) is included in our consolidated statements of operations according to our equity ownership or according to the terms of the applicable governing instrument. Undivided interests in oil and natural gas properties are consolidated on a proportionate basis.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Segments
Operating segments are defined as components of an enterprise that engage in activities from which it may earn revenues and incur expenses for which separate operational financial information is available and is regularly evaluated by the chief operating decision maker for the purpose of allocating an enterprise’s resources and assessing its operating performance. We have concluded that we have only 1 reportable operating segment, which is exploration and production because our marketing activities are ancillary to our operations.
Noncontrolling Interests
Noncontrolling interests represent third-party equity ownership in certain of our consolidated subsidiaries and are presented as a component of equity. See Note 11 for further discussion of noncontrolling interests.
Cash and Cash Equivalents
For purposes of the consolidated financial statements, Chesapeake considerswe consider investments in all highly liquid instruments with original maturities of three months or less at the date of purchase to be cash equivalents.
Accounts Receivable
Our accounts receivable are primarily from purchasers of oil, natural gas and NGL and from exploration and production companies that own interests in properties we operate. This industry concentration could affect our overall exposure to credit risk, either positively or negatively, because our purchasers and joint working interest owners may be similarly affected by changes in economic, industry or other conditions. We monitor the creditworthiness of all our counterparties and we generally require letters of credit or parent guarantees for receivables from parties which are judgeddeemed to have sub-standard credit, unless the credit risk can otherwise be mitigated. We utilize an allowance method in accounting for bad debt based on historical trends in addition to specifically identifying receivables that we believe may be uncollectible. During 2016, 2015See Note 9 for further discussion of our accounts receivable.
Oil and 2014, we recognized $10 million, $4 millionNatural Gas Properties
We follow the successful efforts method of accounting for our oil and $2 millionnatural gas properties. Under this method, exploration costs such as exploratory geological and geophysical costs, expiration of bad debt expenseunproved leasehold, delay rentals and exploration overhead are expensed as incurred. All costs related to potentially uncollectible receivables. Accounts receivableproduction, general corporate overhead and similar activities are also expensed as incurred. All property acquisition costs and development costs are capitalized when incurred.
Exploratory drilling costs are initially capitalized, or suspended, pending the determination of December 31, 2016proved reserves. If proved reserves are found, drilling costs remain capitalized and 2015 are detailed below.classified as proved properties. Costs of unsuccessful wells are charged to exploration expense. For exploratory wells that find reserves that cannot be classified as proved when drilling is completed, costs continue to be capitalized as suspended exploratory drilling costs if there have been sufficient reserves found to justify completion as a producing well and sufficient progress is being made in assessing the reserves and the economic and operational viability of the project. If we determine that future appraisal drilling or development activities are unlikely to occur, associated suspended exploratory well costs are expensed. In some instances, this determination may take longer than one year. We review the status of all suspended exploratory drilling costs quarterly. Costs to develop proved reserves, including the costs of all development wells and related equipment used in the production of oil and natural gas are capitalized.
Costs of drilling and equipping successful wells, costs to construct or acquire facilities, and associated asset retirement costs are depreciated using the unit-of-production (UOP) method based on total estimated proved developed oil and gas reserves. Costs of acquiring proved properties, including leasehold acquisition costs transferred from unproved properties, are depleted using the UOP method based on total estimated proved developed and undeveloped reserves. 
  December 31,
  2016 2015
  ($ in millions)
Oil, natural gas and NGL sales $840
 $696
Joint interest 156
 230
Other 93
 226
Allowance for doubtful accounts (32) (23)
Total accounts receivable, net $1,057
 $1,129
Proceeds from the sales of individual oil and natural gas properties and the capitalized costs of individual properties sold or abandoned are credited and charged, respectively, to accumulated depreciation, depletion and amortization, if doing so does not materially impact the depletion rate of an amortization base. Generally, no gain or loss is recognized until an entire amortization base is sold. However, a gain or loss is recognized from the sale of less than an entire amortization base if the disposition is significant enough to materially impact the depletion rate of the remaining properties in the amortization base.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


Oil and Natural Gas Properties
Chesapeake followsWhen circumstances indicate that the full cost methodcarrying value of accounting under which all costs associated with oil and natural gas property acquisition, exploration and development activities are capitalized. We capitalize internal costs that can be directly identified with these activities and do not capitalize any costs related to production, general corporate overhead or similar activities (see Supplementary Information – Supplemental Disclosures About Oil, Natural Gas and NGL Producing Activities). Capitalized costs are amortized on a composite unit-of-production method based on proved oil and natural gas reserves. Estimatesproperties may not be recoverable, we compare unamortized capitalized costs to the expected undiscounted pre-tax future cash flows for the associated assets grouped at the lowest level for which identifiable cash flows are independent of cash flows of other assets. If the expected undiscounted pre-tax future cash flows, based on our proved reserves asestimate of December 31, 2016 were prepared by an independent engineering firm and Chesapeake's internal staff. Approximately 70% by volume and 83% by value of these proved reserves estimates as of December 31, 2016 were prepared by an independent engineering firm. In addition, our internal engineers review and update our reserves on a quarterly basis.
Proceeds from the sale offuture crude oil and natural gas properties are accounted for as reductions of capitalizedprices, operating costs, unless these sales involve a significant change inanticipated production from proved reserves and significantly alterother relevant data, are lower than the relationship betweenunamortized capitalized costs, the capitalized costs are reduced to fair value. Fair value is generally estimated using the income approach described in the ASC 820, Fair Value Measurements. If applicable, we utilize prices and other relevant information generated by market transactions involving assets and liabilities that are identical or comparable to the item being measured as the basis for determining fair value. The expected future cash flows used for impairment reviews and related fair value measurements are typically based on judgmental assessments of future production volumes, commodity prices, operating costs, and proved reserves, in which casecapital investment plans, considering all available information at the date of review. These assumptions are applied to develop future cash flow projections that are then discounted to estimated fair value, using a gain or loss is recognized.
The costs of unproved properties are excluded from amortization until the properties are evaluated.discount rate believed to be consistent with those applied by market participants. We review all of our unproved properties quarterly to determine whether or not and to what extent proved reserves have been assigned to the properties and otherwise if impairment has occurred. Unproved properties are grouped by major prospect area in circumstances where individual property costs are not significant. In addition, we analyze our unproved leasehold and transfer to proved properties that portion of our leasehold that expiredclassified these fair value measurements as Level 3 in the quarter, or leasehold that is no longer part of our development strategy and will be abandoned.
The table below sets forth the cost of unproved properties excluded from the amortization base as of December 31, 2016 and the year in which the associated costs were incurred.
  Year of Acquisition  
  2016 2015 2014 Prior Total
  ($ in millions)
Leasehold cost $109
 $99
 $507
 $2,956
 $3,671
Exploration cost 24
 36
 13
 34
 107
Capitalized interest 194
 201
 184
 445
 1,024
Total $327
 $336
 $704
 $3,435
 $4,802
We also review, on a quarterly basis, the carryingfair value of our oil and natural gas properties under the full cost accounting rules of the Securities and Exchange Commission (SEC). This quarterly review is referred to as a ceiling test. Under the ceiling test, capitalized costs, less accumulated amortization and related deferred income taxes, may not exceed an amount equal to the sum of the present value of estimated future net revenues (adjusted for oil and natural gas derivatives designated as cash flow hedges) less estimated future expenditures to be incurred in developing and producing the proved reserves, less any related income tax effects. The ceiling test calculation uses costs as of the end of the applicable quarterly period and the unweighted arithmetic average of oil, natural gas and NGL prices on the first day of each month within the 12-month period prior to the ending date of the quarterly period. These prices are utilized except where different prices are fixed and determinable from applicable contracts for the remaining term of those contracts, including the effects of derivatives designated as cash flow hedges. As of December 31, 2016, none of our open derivative instruments were designated as cash flow hedges. Our oil and natural gas hedging activities are discussed in Note 11.hierarchy.
Two primary factors impacting the ceiling test are reserves levels and oil, natural gas and NGL prices, and their associated impact on the present value of estimated future net revenues. Revisions to estimates of oil and natural gas reserves and/or an increase or decrease in prices can have a material impact on the present value of our estimated future net revenues. Any excess of the net book value over the ceiling is written off as an expense.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

We account for seismic costs as part of our oil and natural gas properties. Exploration costs may be incurred both before acquiring the related property and after acquiring the property. Further, exploration costs include, among other things, geological and geophysical studies and salaries and other expenses of geologists, geophysical crews and others conducting those studies. These costs are capitalized as incurred. The Company reviews its unproved properties and associated seismic costs quarterly to determine whether impairment has occurred. To the extent that seismic costs cannot be directly associated with specific unproved properties, they are included in the amortization base as incurred.
Other Property and Equipment
Other property and equipment consists primarily of natural gas compressors, buildings and improvements, land, vehicles, computers, sand mine, natural gas compressors under finance lease and office equipment. We have no remaining oilfield services equipment as a result of the spin-off of our oilfield services business in 2014, as discussed in Note 13. Major renewals and betterments are capitalized while the costs of repairs and maintenance are charged to expense as incurred. The costs of assets retired or otherwise disposed of and the applicable accumulated depreciation are removed from the accounts, and the resulting gain or loss is reflected in operating expenses. See Note 16 for further discussion of our gains and losses on the sales of other property and equipment for the years ended 2016, 2015 and 2014 and a summary of our other property and equipment held for sale as of December 31, 2016 and 2015. Other property and equipment costs, excluding land, are depreciated on a straight-line basis.basis and recorded within depreciation, depletion and amortization in the consolidated statement of operations. Natural gas compressors under finance lease are depreciated over the shorter of their estimated useful lives or the term of the related lease.
Realization of the carrying value of other property and equipment is reviewed for possible impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Assets are determined to be impaired if a forecast of undiscounted estimated future net operating cash flows directly related to the asset, including any disposal value, is less than the carrying amount of the asset. If any asset is determined to be impaired, the loss is measured as the amount by which the carrying amount of the asset exceeds its fair value. An estimate of fair value is based on the best information available, including prices for similar assets and discounted cash flow. During 2016, 2015 and 2014, we determined that certain of our property and equipment was being carried at values that were not recoverable and in excess of fair value. See Note 17 for further discussion of these impairments.other property and equipment.
Capitalized Interest
Interest from external borrowings is capitalized on significant investments in unproved properties and major development projects until the asset is ready for service using the weighted average borrowing rate of outstanding borrowings. Capitalized interest is determined by multiplying our weighted-averageweighted average borrowing cost on debt by the average amount of qualifying costs incurred. Capitalized interest is depreciated over the useful lives of the assets in the same manner as the depreciation of the underlying asset.
Accounts Payable
Included in accounts payable as of December 31, 20162019 and 20152018 are liabilities of approximately $77$57 million and $60$104 million, respectively, representing the amount by which checks issued, but not yet presented to our banks for collection, exceeded balances in applicable bank accounts.
Debt Issuance Costs
Included in other long-term assets are costs associated with the issuance and amendments of ourthe Chesapeake revolving credit facility. The remaining unamortized issuance costs as of December 31, 20162019 and 2015,2018, totaled $32$27 million and $31$30 million, respectively, and are being amortized over the life of the Chesapeake revolving credit facility using the effective intereststraight-line method. Included in long-term debt are costs associated with the issuance of our senior notes. The remaining unamortized issuance costs as of December 31, 20162019 and 2015,2018, totaled $64$44 million and $43$53 million, respectively, and are being amortized over the life of the senior notes using the effective interest method.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Litigation Contingencies
We are subject to litigation and regulatory proceedings, claims and liabilities that arise in the ordinary course of business. We accrue losses associated with litigation and regulatory claims when such losses are probable and reasonably estimable. If we determine that a loss is probable and cannot estimate a specific amount for that loss but can estimate a range of loss, our best estimate within the range is accrued. Estimates are adjusted as additional information becomes available or circumstances change. Legal defense costs associated with loss contingencies are expensed in the period incurred. See Note 6 for further discussion of litigation contingencies.
Environmental Remediation Costs
Chesapeake recordsWe record environmental reserves for estimated remediation costs related to existing conditions from past operations when the responsibility to remediate is probable and the costs can be reasonably estimated. Expenditures that create future benefits or contribute to future revenue generation are capitalized.
See TABLE OF CONTENTSNote 6
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

for discussion of environmental contingencies.
Asset Retirement Obligations
We recognize liabilities for obligations associated with the retirement of tangible long-lived assets that result from the acquisition, construction and development of the assets. We recognize the fair value of a liability for a retirement obligation in the period in which the liability is incurred. For oil and natural gas properties, this is the period in which an oil or natural gas well is acquired or drilled. The liability is then accreted each period until the liability is settled or the well is sold, at which time the liability is removed. The related asset retirement cost is capitalized as part of the carrying amount of our oil and natural gas properties. See Note 2022 for further discussion of asset retirement obligations.
Revenue Recognition
Oil, Natural Gas and NGL Sales. Revenue from the sale of oil, natural gas and NGL is recognized upon the transfer of control of the products, which is typically when the products are delivered to customers. Prior to the adoption of Revenue from Contracts with Customers (Topic 606) on January 1, 2018, revenue from the sale of oil, natural gas and NGL was recognized when title passes,passed to customers. Revenue is recognized net of royalties due to third parties.parties in an amount that reflects the consideration we expect to receive in exchange for those products.
Natural Gas Imbalances. We followRevenue from contracts with customers includes the sales methodsale of accounting for our oil, natural gas revenue whereby we recognize sales revenue on alland NGL production (recorded as oil, natural gas sold to our purchasers, regardless of whether the sales are proportionate to our ownershipand NGL revenues in the property. An asset or a liability is recognized toconsolidated statements of operations) as well as the extent thatsale of certain of our joint interest holders’ production which we have an imbalancepurchase under joint operating arrangements (recorded in excessmarketing revenues in the consolidated statements of operations). In connection with the remaining estimated natural gas reserves on the underlying properties. The natural gas imbalance net liability position asmarketing of December 31, 2016 and 2015, was $9 million and $10 million, respectively.
Marketing, Gathering and Compression Sales. Chesapeake takes title tothese products, we obtain control of the oil, natural gas and NGL it purchaseswe purchase from other interest owners at defined delivery points and deliversdeliver the product to third parties, at which time revenues are recorded. In addition, we periodically enter into
Payment terms and conditions vary by contract type, although terms generally include a requirement of payment within 30 days. There are no significant judgments that significantly affect the amount or timing of revenue from contracts with customers.
We also earn revenue from other sources, including from a variety of derivative and hedging activities to reduce our exposure to fluctuations in future commodity prices and to protect our expected operating cash flow against significant market movements or volatility, (recorded within oil, natural gas and NGL revenues in the consolidated statements of operations) as well as a variety of oil, natural gas and NGL purchase and sale contracts with third parties for various commercial purposes, including credit risk mitigation and to help meet certainsatisfaction of our pipeline delivery commitments. commitments (recorded within marketing revenues in the consolidated statements of operations).
In circumstances where we act as an agent rather than a principal, rather than an agent, Chesapeake'sour results of operations related to its oil, natural gas and NGL marketing activities are presented on a grossnet basis. Gathering and compression revenues consistSee Note 9 for further discussion of fees billed to other interest owners in operated wells or third-party producers for the gathering, treating and compression of natural gas. Revenues are recognized when the service is performed and are based upon non-regulated rates and the related gathering, treating and compression volumes. All significant intercompany accounts and transactions have been eliminated.revenue recognition.
Oilfield Services Revenue. Prior to the spin-off of our oilfield services business in June 2014, we reported oilfield services revenue. Our former oilfield services operating segment was responsible for contract drilling, hydraulic fracturing, rentals, trucking and other oilfield services operations for both Chesapeake-operated wells and wells operated by third parties. Revenues were recognized upon completion stages for our contract drilling, hydraulic fracturing and other oilfield services. Revenue was recognized ratably over the term of the rental for our oilfield rental services. Oilfield trucking services revenue was recognized as services were performed.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Fair Value Measurements
Certain financial instruments are reported on a recurring basis at fair value on our consolidated balance sheets. We also use fair value measurements on a nonrecurring basis when a qualitative assessment of our assets indicates a potential impairment. Under fair value measurement accounting guidance, fair value is defined as the amount that would be received from the sale of an asset or paid for the transfer of a liability in an orderly transaction between market participants (i.e., an exit price). To estimate an exit price, a three-level hierarchy is used. The fair value hierarchy prioritizes the inputs, which refer broadly to assumptions market participants would use in pricing an asset or a liability, into three levels. Level 1 inputs are unadjusted quoted prices in active markets for identical assets and liabilities and have the highest priority. Level 2 inputs are inputs other than quoted prices within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability and have the lowest priority.
The valuation techniques that may be used to measure fair value include a market approach, an income approach and a cost approach. A market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. An income approach uses valuation techniques to convert future amounts to a single present amount based on current market expectations, including present value techniques, option-pricing models and the excess earnings method. The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement cost).
The carrying values of financial instruments comprising cash and cash equivalents, accounts payable and accounts receivable approximate fair values due to the short-term maturities of these instruments.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

for further discussion of fair value measurements.
Derivatives
Derivative instruments are recorded on our consolidated balance sheets as derivative assets or derivative liabilities at fair value, and changes in a derivative’s fair value are recognized currently in earnings unless specific hedge accounting criteria are followed. For qualifying commodityAs of December 31, 2019, none of our open derivative instruments were designated as cash flow hedges, changes in fair value, to the extent the hedge is effective, are recognized in other comprehensive income until the hedged item is recognized in earnings. Any change in fair value resulting from ineffectiveness is recognized immediately in earnings. Locked-in gains and losses of settled cash flow hedges are recorded in accumulated other comprehensive income and are transferred to earnings in the month of production. Changes in the fair value of interest rate derivative instruments designated as fair value hedges are recorded on the consolidated balance sheets as assets or liabilities, and the debt's carrying value amount is adjusted by the change in the fair value of the debt subsequent to the initiation of the derivative. Differences between the changes in the fair values of the hedged item and the derivative instrument, if any, represent hedge ineffectiveness and are recognized currently in earnings. Locked-in gains and losses related to settled fair value hedges are amortized as an adjustment to interest expense over the remaining term of the related debt instrument. We have elected not to designate any of our qualifying commodity and interest rate derivatives as cash flow or fair value hedges. Therefore, changes in fair value of these derivatives that occur prior to their maturity (i.e., temporary fluctuations in value) are recognized in our consolidated statements of operations within oil, natural gas and NGL sales and interest expense, respectively.
From time to time and in the normal course of business, our marketing subsidiary enters into supply contracts under which we commit to deliver a predetermined quantity of natural gas to certain counterparties in an attempt to earn attractive margins. Under certain contracts, we receive a sales price that is based on the price of a product other than natural gas, thereby creating an embedded derivative requiring bifurcation. The changes in fair value of the embedded derivative and the settlements are recognized in our consolidated statements of operations within marketing, gathering and compression sales.
Derivative instruments reflected as current in the consolidated balance sheets represent the estimated fair value of derivatives scheduled to settle over the next twelve months based on market prices/rates as of the respective balance sheet dates. Cash settlements of our derivative instruments are generally classified as operating cash flows unless the derivatives are deemed to contain, for accounting purposes, a significant financing element at contract inception, in which case these cash settlements are classified as financing cash flows in the accompanying consolidated statement of cash flows. All of our derivative instruments are subject to master netting arrangements by contract type (i.e., commodity, interest rate and cross currency contracts) which provide for the offsetting of asset and liability positions within each contract type, as well as related cash collateral if applicable, by counterparty. Therefore, we net the value of our derivative instruments by contract type with the same counterparty in the accompanying consolidated balance sheets.
We have established the fair value of our derivative instruments using established index prices, volatility curves and discount factors. These estimates are compared to our counterparty values for reasonableness. The values we report in our financial statements are as of a point in time and subsequently change as these estimates are revised to reflect actual results, changes in market conditions and other factors. Derivative transactions are subject to the risk that counterparties will be unable to meet their obligations. This non-performance risk is considered in the valuation of our derivative instruments, but to date has not had a material impact on the values of our derivatives. See Note 1114 for further discussion of our derivative instruments.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Share-Based Compensation
Chesapeake’sOur share-based compensation program consists of restricted stock, stock options, and performance share units and cash restricted stock units granted to employees and restricted stock granted to non-employee directors under our Long Term Incentive Plan. We recognize in our financial statements the cost of employee services received in exchange for restricted stock and stock options based on the fair value of the equity instruments as of the grant date. For employees, this value is amortized over the vesting period, which is generally three or four years from the grant date. For directors, although restricted stock grants vest over three years, this value is recognized immediately as there is a non-substantive service condition for vesting. Because performance share units can only beare settled in cash, they are classified as a liability in our consolidated financial statements and are measured at fair value as of the grant date and re-measured at fair value at the end of
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

each reporting period. These fair value adjustments are recognized as general and administrative expense in the consolidated statements of operations.
To the extent compensation expense relates to employees directly involved in the acquisition of oil and natural gas leasehold and exploration and development activities, these amounts are capitalized to oil and natural gas properties. Amounts not capitalized to oil and natural gas properties are recognized as general and administrative expenses,expense, oil, natural gas and NGL production expenses,expense, exploration expense, or marketing gathering and compression expenses,expense, based on the employees involved in those activities. See Note 912 for further discussion of share-based compensation.
Reclassifications and Revisions
In April 2015, the FinancialRecently Issued Accounting Standards Board (FASB)
In December 2019, the FASB issued guidance that requires debt issuance costsAccounting Standards Update (ASU) 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12)as part of its initiative to reduce complexity in the accounting standards. The amendments in ASU 2019-12 remove certain exceptions related to term debtthe incremental approach for intraperiod tax allocation, the general methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also clarifies and simplifies other aspects of accounting for income taxes. The amendments in ASU 2019-12 become effective for us for the calendar year ending December 31, 2021; however, early adoption is permissible for periods for which financial statements have not yet been issued. We have decided to early adopt ASU 2019-12 for the calendar year ended December 31, 2019, which will be in effect from the beginning of the 2019 annual period. The early adoption of ASU 2019-12 did not result in a material impact to our balance sheet, results of operations or cash flows.
In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) (“ASC 842”), which requires lessees to recognize a lease liability and a right-of-use (ROU) asset on the balance sheet for all leases, including operating leases, with terms in excess of 12 months. As the implicit rate of the lease is not always readily determinable, the company uses its incremental borrowing rate to calculate the present value of lease payments based on information available at the commencement date. Operating ROU assets are included in other long-term assets while operating lease liabilities are included in other current and other long-term liabilities on the consolidated balance sheet. Finance ROU assets are reflected in total property and equipment, net, while finance lease liabilities are included in other current and other long-term liabilities on the consolidated balance sheet.
ASC 842 does not apply to our leases of mineral rights to explore for or use oil and natural gas resources, including the intangible rights to explore for those natural resources and rights to use the land in which those natural resources are contained.
We adopted the new standard on January 1, 2019 and as permitted by ASU 2018-11, Leases (Topic 842): Targeted Improvements, we did not adjust comparative-period financial statements and continued to apply the guidance in Topic 840, including its disclosure requirements, in the comparative periods presented prior to adoption. No cumulative-effect adjustment to retained earnings was required as a result of the modified retrospective approach.
Upon adoption of ASC 842, we made certain elections permitting us to not reassess: (1) whether any expired or existing contracts contained leases (2) the lease classification for any expired or existing leases, and (3) initial direct costs for any existing leases. Upon adoption of ASC 842, we also made an election permitting us to continue applying our current policy for land easements. The adoption of ASC 842 did not result in a material impact on our balance sheet, results of operations or cash flows.
Short-term leases will not be recognized on the balance sheet as an asset or a direct reduction fromliability, and the associated debt liability. This standard requires retrospective application and is effective for annual reporting periods beginning after December 15, 2015. This change in accounting principle is preferable since it allows both debt issuance costs and debt discountsrelated rental expense will be expensed as incurred. We have short-term lease agreements related to be presented similarly in the consolidated balance sheets as a direct reduction from the face amountmost of our debt balances. A retrospective change todrilling rig arrangements and some of our consolidated balance sheet as of December 31, 2015, as previously presented, is required pursuant to the guidance. The retrospective adjustment to the December 31, 2015 consolidated balance sheet is shown below.compressor rental arrangements.
See Note 8 for further information regarding leases.
  As Previously Reported December 31, 2015 Adjustment Effect As Adjusted
  ($ in millions)
Other long-term assets $333
 $(43) $290
Long-term debt, net $10,354
 $(43) $10,311
In addition, certain revisions have been made to the fair value of debt table included in Note 3 to conform to the presentation used for our 2016 disclosure. The 8.00% Senior Secured Second Lien Notes due 2022 were previously classified as Level 1 and should have been classified as Level 2, as these senior notes are not exchange-traded. The following table reflects the revisions made.
  
As Previously
Reported
 
December 31, 2015
Adjustment Effect
 As Revised
  
Carrying
Amount
 
Estimated
Fair Value
 
Carrying
Amount
 
Estimated
Fair Value
 Carrying
Amount
 Estimated
Fair Value
  ($ in millions)
Short-term debt (Level 1) $381
 $366
 $
 $
 $381
 $366
Long-term debt (Level 1)(a)
 $10,347
 $3,735
 $(3,627) $(1,189) $6,720
 $2,546
Long-term debt (Level 2) $
 $
 $3,584
 $1,189
 $3,584
 $1,189

(a)    The difference in the carrying amount is due to the debt issuance costs retrospective change noted above.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


Reclassifications
Certain reclassifications have been made to the consolidated financial statements for 2018 and 2017 to conform to the presentation used for the 2019 consolidated financial statements. In 2019, we have reclassified our presentation of ad valorem taxes to report the costs as a component of severance and ad valorem taxes in the accompanying consolidated statements of operations. Previously these costs were reflected as oil, natural gas and NGL production expenses. The net effect of this reclassification did not impact our previously reported net income, stockholders’ equity or cash flows. The following table reflects the reclassifications made:
  Years Ended December 31,
  2018 2017
  $ in millions
Oil, natural gas and NGL production, previously reported $539
 $562
Reclassification of ad valorem taxes (65) (45)
Oil, natural gas and NGL production, as currently reported $474
 $517
The corresponding amounts have been reflected in severance and ad valorem taxes for 2018 and 2017 as shown below:
  Years Ended December 31,
  2018 2017
  $ in millions
Production taxes, previously reported $124
 $89
Reclassification of ad valorem taxes 65
 45
Severance and ad valorem taxes, as currently reported $189
 $134


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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

2.Change in Accounting Principle
In the first quarter of 2019, we voluntarily changed our method of accounting for oil and natural gas exploration and development activities from the full cost method to the successful efforts method. Accordingly, financial information for prior periods presented herein has been recast to reflect retrospective application of the successful efforts method. In general, under the successful efforts method, exploration costs such as exploratory dry holes, exploratory geophysical and geological costs, delay rentals, unproved leasehold impairments and exploration overhead are charged against earnings as incurred, versus being capitalized under the full cost method of accounting. The successful efforts method also provides for the assessment of potential property impairments by comparing the net carrying value of oil and natural gas properties to associated projected undiscounted pre-tax future net cash flows. If the expected undiscounted pre-tax future net cash flows are lower than the unamortized capitalized costs, the capitalized costs are reduced to fair value. Under the full cost method of accounting, a write-down would be required if the net carrying value of oil and natural gas properties exceeds a full cost ceiling using an unweighted arithmetic average of commodity prices in effect on the first day of each of the previous 12 months. In addition, gains or losses, if applicable, are generally recognized on the disposition of oil and natural gas property and equipment under the successful efforts method, as opposed to an adjustment to the net carrying value of the assets remaining under the full cost method. Our consolidated financial statements have been recast to reflect these differences.
The following tables present the effects of the change to the successful efforts method of accounting in the consolidated balance sheets:
  December 31, 2019
CONSOLIDATED BALANCE SHEETS Under Full Cost Adjustment 
As
Reported Under Successful Efforts
  ($ in millions except per share data)
Proved oil and natural gas properties ($488 and $755 attributable to our VIE) $75,148
 $(44,383) $30,765
Unproved properties $3,203
 $(1,030) $2,173
Total Property and Equipment, at Cost $80,161
 $(45,413) $34,748
Less: accumulated depreciation, depletion and amortization
(($468) and ($713) attributable to our VIE)
 $(66,626) $46,624
 $(20,002)
Total Property and Equipment, Net $13,545
 $1,211
 $14,756
Total Assets $14,982
 $1,211
 $16,193
Other current liabilities $1,377
 $55
 $1,432
Total Current Liabilities $2,337
 $55
 $2,392
Other long-term liabilities $116
 $9
 $125
Total Long-Term Liabilities $9,391
 $9
 $9,400
Accumulated deficit $(15,451) $1,231
 $(14,220)
Total Chesapeake Stockholders’ Equity $3,133
 $1,231
 $4,364
Noncontrolling interests $121
 $(84) $37
Total Equity $3,254
 $1,147
 $4,401
Total Liabilities and Equity $14,982
 $1,211
 $16,193

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

  December 31, 2018
CONSOLIDATED BALANCE SHEETS 
As
Reported Under Full Cost
 Adjustment 
As
Reported Under Successful Efforts
  ($ in millions except per share data)
Proved oil and natural gas properties ($488 and $755 attributable to our VIE) $69,642
 $(44,235) $25,407
Unproved properties $2,337
 $(776) $1,561
Total Property and Equipment, at Cost $73,700
 $(45,011) $28,689
Less: accumulated depreciation, depletion and amortization
(($461) and ($707) attributable to our VIE)
 $(64,685) $46,799
 $(17,886)
Total Property and Equipment, Net $9,030
 $1,788
 $10,818
Total Assets $10,947
 $1,788
 $12,735
Other current liabilities $1,540
 $59
 $1,599
Total Current Liabilities $2,828
 $59
 $2,887
Other long-term liabilities $156
 $63
 $219
Total Long-Term Liabilities $7,652
 $63
 $7,715
Accumulated deficit $(15,660) $1,748
 $(13,912)
Total Chesapeake Stockholders’ Equity $344
 $1,748
 $2,092
Noncontrolling interests $123
 $(82) $41
Total Equity $467
 $1,666
 $2,133
Total Liabilities and Equity $10,947
 $1,788
 $12,735

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following tables present the effects of the change to the successful efforts method of accounting in the consolidated statements of operations:
  Year Ended December 31, 2019
CONSOLIDATED STATEMENTS OF OPERATIONS Under Full Cost 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Other revenues $
 $63
 $63
Gain on sale of assets $
 $43
 $43
Total revenues $8,489
 $106
 $8,595
Exploration expense $
 $84
 $84
General and administrative $258
 $57
 $315
Depreciation, depletion and amortization $1,616
 $648
 $2,264
Gain on sale of oil and natural gas properties $(15) $15
 $
Impairments $344
 $(333) $11
Other operating expense $94
 $(2) $92
Total operating expenses $8,157
 $469
 $8,626
Income (loss) from operations $332
 $(363) $(31)
Interest expense $(487) $(164) $(651)
Other income $31
 $8
 $39
Total other expense $(452) $(156) $(608)
Loss before income taxes $(120) $(519) $(639)
Net income (loss) $211
 $(519) $(308)
Net income attributable to noncontrolling interest $(2) $2
 $
Net income (loss) attributable to Chesapeake $209
 $(517) $(308)
Net income (loss) available to common stockholders $101
 $(517) $(416)
Earnings (loss) per common share basic $0.06
 $(0.31) $(0.25)
Earnings (loss) per common share diluted $0.06
 $(0.31) $(0.25)
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

  Year Ended December 31, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS As
Reported Under Full Cost
 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Other revenues $
 $63
 $63
Loss on sale of assets $
 $(264) $(264)
Total revenues $10,231
 $(201) $10,030
Exploration expense $
 $162
 $162
General and administrative $280
 $55
 $335
Depreciation, depletion and amortization $1,145
 $592
 $1,737
Loss on sale of oil and natural gas properties $578
 $(578) $
Impairments $53
 $78
 $131
Other operating expenses $10
 $(10) $
Total operating expenses $9,349
 $299
 $9,648
Income from operations $882
 $(500) $382
Interest expense $(487) $(146) $(633)
Other income $70
 $(3) $67
Total other expense $(15) $(149) $(164)
Income before income taxes $867
 $(649) $218
Net income $877
 $(649) $228
Net income attributable to noncontrolling interest $(4) $2
 $(2)
Net income attributable to Chesapeake $873
 $(647) $226
Earnings allocated to participating securities $(6) $5
 $(1)
Net income available to common stockholders $775
 $(642) $133
Earnings per common share basic $0.85
 $(0.70) $0.15
Earnings per common share diluted $0.85
 $(0.70) $0.15
       
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

  Year Ended December 31, 2017
CONSOLIDATED STATEMENTS OF OPERATIONS As
Reported Under Full Cost
 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Other revenues $
 $67
 $67
Gain on sales of assets $
 $476
 $476
Total revenues $9,496
 $543
 $10,039
Exploration expense $
 $235
 $235
General and administrative $262
 $71
 $333
Depreciation, depletion and amortization $995
 $702
 $1,697
Impairments $5
 $809
 $814
Other operating expenses $413
 $3
 $416
Total operating expenses $8,357
 $1,820
 $10,177
Income (loss) from operations $1,139
 $(1,277) $(138)
Interest expense $(426) $(175) $(601)
Other income $9
 $(3) $6
Total other expense $(184) $(178) $(362)
Income (loss) before income taxes $955
 $(1,455) $(500)
Net income (loss) $953
 $(1,455) $(502)
Net income attributable to noncontrolling interest $(4) $1
 $(3)
Net income (loss) attributable to Chesapeake $949
 $(1,454) $(505)
Earnings allocated to participating securities $(10) $10
 $
Net income (loss) available to common stockholders $813
 $(1,444) $(631)
Earnings (loss) per common share basic $0.90
 $(1.60) $(0.70)
Earnings (loss) per common share diluted $0.90
 $(1.60) $(0.70)


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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following tables present the effects of the change to the successful efforts method of accounting in the consolidated statements of comprehensive income:
  Year Ended December 31, 2019
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Under Full Cost 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Net income (loss) $211
 $(519) $(308)
Comprehensive income (loss) $246
 $(519) $(273)
Comprehensive income attributable to noncontrolling interests $(2) $2
 $
Comprehensive income (loss) attributable to Chesapeake $244
 $(517) $(273)
       
  Year Ended December 31, 2018
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME As
Reported Under Full Cost
 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Net income $877
 $(649) $228
Comprehensive income $911
 $(649) $262
Comprehensive income attributable to noncontrolling interests $(4) $2
 $(2)
Comprehensive income attributable to Chesapeake $907
 $(647) $260
       
  Year Ended December 31, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME As
Reported Under Full Cost
 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Net income (loss) $953
 $(1,455) $(502)
Comprehensive income (loss) $992
 $(1,455) $(463)
Comprehensive income attributable to noncontrolling interests $(4) $1
 $(3)
Comprehensive income (loss) attributable to Chesapeake $988
 $(1,454) $(466)



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following tables present the effects of the change to the successful efforts method of accounting in the consolidated statements of cash flows:
  Year Ended December 31, 2019
CONSOLIDATED STATEMENTS OF CASH FLOWS Under Full Cost 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Net income (loss) $211
 $(519) $(308)
Depreciation, depletion and amortization $1,616
 $648
 $2,264
Gain on sale of oil and gas properties $(15) $15
 $
Gain on sales of assets $
 $(43) $(43)
Impairments $344
 $(333) $11
Exploratory dry hole expense and leasehold impairments $
 $49
 $49
Other $(2) $(2) $(4)
(Decrease) increase in accounts payable, accrued liabilities and other $(567) $(63) $(630)
Net cash provided by operating activities $1,871
 $(248) $1,623
Drilling and completion costs $(2,260) $80
 $(2,180)
Acquisition of proved and unproved properties $(203) $168
 $(35)
Net cash used by investing activities $(2,728) $248
 $(2,480)
       
  Year Ended December 31, 2018
CONSOLIDATED STATEMENTS OF CASH FLOWS As
Reported Under Full Cost
 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Net income $877
 $(649) $228
Depreciation, depletion and amortization $1,145
 $592
 $1,737
Loss on sale of oil and gas properties $578
 $(578) $
Losses on sales of assets $
 $264
 $264
Impairments $53
 $78
 $131
Exploratory dry hole expense and leasehold impairments $
 $96
 $96
Other $(108) $(10) $(118)
Increase in accounts payable, accrued liabilities and other $138
 $(63) $75
Net cash provided by operating activities $2,000
 $(270) $1,730
Drilling and completion costs $(1,958) $110
 $(1,848)
Acquisition of proved and unproved properties $(288) $160
 $(128)
Net cash provided by investing activities $185
 $270
 $455
       
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

  Year Ended December 31, 2017
CONSOLIDATED STATEMENTS OF CASH FLOWS As
Reported Under Full Cost
 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Net income (loss) $953
 $(1,455) $(502)
Depreciation, depletion and amortization $995
 $702
 $1,697
Gains on sales of assets $
 $(476) $(476)
Impairments $5
 $809
 $814
Exploratory dry hole expense and leasehold impairments $
 $214
 $214
Other $(135) $3
 $(132)
Decrease in accounts payable, accrued liabilities and other $(308) $(67) $(375)
Net cash provided by operating activities $745
 $(270) $475
Drilling and completion costs $(2,186) $73
 $(2,113)
Acquisition of proved and unproved properties $(285) $197
 $(88)
Net cash used in investing activities $(1,188) $270
 $(918)
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following tables present the effects of the change to the successful efforts method of accounting in the consolidated statements of stockholders’ equity:
  Year Ended December 31, 2019
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY Under Full Cost 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Accumulated deficit, beginning of period $(15,660) $1,748
 $(13,912)
Net income (loss) attributable to Chesapeake $209
 $(517) $(308)
Accumulated deficit, end of period $(15,451) $1,231
 $(14,220)
Total Chesapeake stockholders’ equity $3,133
 $1,231
 $4,364
Noncontrolling interests, beginning of period $123
 $(82) $41
Net income attributable to noncontrolling interests $2
 $(2) $
Noncontrolling interests, end of period $121
 $(84) $37
Total equity $3,254
 $1,147
 $4,401
       
  Year Ended December 31, 2018
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY As
Reported Under Full Cost
 
Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Accumulated deficit, beginning of period $(16,525) $2,395
 $(14,130)
Net income attributable to Chesapeake $873
 $(647) $226
Accumulated deficit, end of period $(15,660) $1,748
 $(13,912)
Total Chesapeake stockholders’ equity $344
 $1,748
 $2,092
Noncontrolling interests, beginning of period $124
 $(80) $44
Net income attributable to noncontrolling interests $4
 $(2) $2
Noncontrolling interests, end of period $123
 $(82) $41
Total equity $467
 $1,666
 $2,133
       
  Year Ended December 31, 2017
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY As
Reported Under Full Cost
 

Adjustment
 As
Reported Under Successful Efforts
  ($ in millions except per share data)
Accumulated deficit, beginning of period $(17,474) $3,849
 $(13,625)
Net income (loss) attributable to Chesapeake $949
 $(1,454) $(505)
Accumulated deficit, end of period $(16,525) $2,395
 $(14,130)
Total Chesapeake stockholders’ equity (deficit) $(496) $2,395
 $1,899
Noncontrolling interests, beginning of period $128
 $(79) $49
Net income attributable to noncontrolling interests $4
 $(1) $3
Noncontrolling interests, end of period $124
 $(80) $44
Total equity (deficit) $(372) $2,315
 $1,943

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

3.Oil and Natural Gas Property Transactions
WildHorse Acquisition
On February 1, 2019, we acquired WildHorse Resource Development Corporation (“WildHorse”), an oil and gas company with operations in the Eagle Ford Shale and Austin Chalk formations in southeast Texas for approximately 717.4 million shares of our common stock and $381 million in cash. We funded the cash portion of the consideration through borrowings under the Chesapeake revolving credit facility. In connection with the closing, we acquired all of WildHorse’s debt. See Note 5 for additional information on the acquired debt.
Purchase Price Allocation
We have accounted for the acquisition of WildHorse and its corresponding merger (the “Merger”) with and into our wholly owned subsidiary, Brazos Valley Longhorn, L.L.C. (“Brazos Valley Longhorn” or “BVL”), as a business combination, using the acquisition method. The following table represents the final allocation of the total purchase price of WildHorse to the identifiable assets acquired and the liabilities assumed based on the fair values as of the acquisition date.
 Purchase Price Allocation
 ($ in millions)
Consideration: 
Cash$381
Fair value of Chesapeake’s common stock issued in the Merger (a)
2,037
Total consideration$2,418
  
Fair Value of Liabilities Assumed: 
Current liabilities$166
Long-term debt1,379
Deferred tax liabilities314
Other long-term liabilities36
Amounts attributable to liabilities assumed$1,895
  
Fair Value of Assets Acquired: 
Cash and cash equivalents$28
Other current assets128
Proved oil and natural gas properties3,264
Unproved properties756
Other property and equipment77
Other long-term assets60
Amounts attributable to assets acquired$4,313
  
Total identifiable net assets$2,418

(a)Based on 717,376,170 Chesapeake common shares issued at closing at $2.84 per share (closing price as of February 1, 2019).

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The fair values of assets acquired and liabilities assumed were based on the following key inputs:
Oil and Natural Gas Properties
 For the acquisition of WildHorse, we applied applicable guidance, under which an acquirer should recognize the identifiable assets acquired and the liabilities assumed on the acquisition date at fair value. The fair value estimate of proved and unproved oil and natural gas properties as of the acquisition date was based on estimated oil and natural gas reserves and related future net cash flows discounted using a weighted average cost of capital, including estimates of future production rates and future development costs. We utilized a combination of the NYMEX strip pricing and consensus pricing to value the reserves. Our estimates of commodity prices for purposes of determining discounted cash flows ranged from a 2019 price of $56.33 per barrel of oil increasing to a 2023 price of $61.17 per barrel of oil. Similarly, natural gas prices ranged from a 2019 price of $2.82 per mmbtu then increasing to a 2023 price of $3.00 per mmbtu. Both oil and natural gas commodity prices were held flat after 2023 and adjusted for inflation. We then applied various discount rates depending on the classification of reserves and other risk characteristics. Management utilized the assistance of a third-party valuation expert to estimate the value of the oil and natural gas properties acquired. Additionally, the estimated fair value estimate of proved and unproved oil and natural gas properties was corroborated by utilizing the market approach which considers recent comparable transactions for similar assets.
 The inputs used to value oil and natural gas properties require significant judgment and estimates made by management and represent Level 3 inputs.
Financial Instruments and Other
 The fair value measurements of long-term debt were estimated based on a market approach using estimates provided by an independent investment data services firm and represent Level 2 inputs.
Deferred Income Taxes
For federal income tax purposes, the WildHorse acquisition qualified as a tax-free merger, as a result, we acquired carryover tax basis in WildHorse’s assets and liabilities. Deferred tax liabilities and assets were recorded for differences between the purchase price allocated to the assets acquired and liabilities assumed based on the fair value and the carryover tax basis. See Note 10 for further discussion of deferred income taxes.
WildHorse Revenues and Expenses Subsequent to Acquisition
We included in our consolidated statements of operations revenues of $752 million, direct operating expenses of $810 million, including depreciation, depletion and amortization, and other expense of $83 million related to the WildHorse business for the period from February 1, 2019 to December 31, 2019.
Pro Forma Financial Information
The following unaudited pro forma financial information for the years ended December 31, 2019 and 2018, respectively, is based on our historical consolidated financial statements adjusted to reflect as if the WildHorse acquisition had occurred on January 1, 2018. The information below reflects pro forma adjustments based on available information and certain assumptions that we believe are reasonable, including adjustments to conform the classification of expenses in WildHorse’s statements of operations to our classification for similar expenses and the estimated tax impact of pro forma adjustments.
  
Years Ended
December 31,
  2019 2018
  ($ in millions except per share data)
Revenues $8,587
 $11,211
Net income (loss) available to common stockholders $(431) $195
Earnings (loss) per common share:    
Basic $(0.26) $0.12
Diluted $(0.26) $0.12

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

This unaudited pro forma information has been derived from historical information. The unaudited pro forma financial information is not necessarily indicative of what actually would have occurred if the acquisition had been completed as of the beginning of the periods presented, nor is it necessarily indicative of future results.
2019 Transactions
In 2019, we received proceeds of approximately $130 million, net of post-closing adjustments, and recognized a gain of approximately $46 million, primarily for the sale of non-core oil and natural gas properties.
2018 Transactions
We sold all of our approximately 1,500,000 gross (900,000 net) acres in Ohio, of which approximately 320,000 net acres are prospective for the Utica Shale with approximately 920 producing wells, along with related property and equipment for net proceeds of $1.868 billion to Encino, with additional contingent payments to us of up to $100 million comprised of $50 million in consideration in each case if, on or prior to December 31, 2019, there is a period of twenty (20) trading days out of a period of thirty (30) consecutive trading days where (i) the average of the NYMEX natural gas strip prices for the months comprising the year 2022 equals or exceeds $3.00/mmbtu as calculated pursuant to the purchase agreement, and (ii) the average of the NYMEX natural gas strip prices for the months comprising the year 2023 equals or exceeds $3.25/mmbtu as calculated pursuant to the purchase agreement. We recognized a loss of approximately $273 million associated with the transaction.
In 2018, we sold portions of our acreage, producing properties and other related property and equipment in the Mid-Continent, including our Mississippian Lime assets, for approximately $491 million, subject to certain customary closing adjustments. Included in the sales were approximately 238,500 net acres and interests in approximately 3,200 wells. We recognized a gain of approximately $12 million associated with the transactions. Also, in 2018, we received proceeds of approximately $37 million subject to customary closing adjustments, for the sale of other oil and natural gas properties covering various operating areas.
2017 Transactions
We sold portions of our acreage and producing properties in our Haynesville Shale operating area in northern Louisiana for approximately $915 million, subject to certain customary closing adjustments, and recognized a gain of approximately $326 million. Included in the sales were approximately 119,500 net acres and interests in 576 wells that were producing approximately 80 mmcf of gas per day at the time of closing. Also, in 2017, we received proceeds of approximately $350 million, net of post-closing adjustments, for the sale of other oil and natural gas properties covering various operating areas.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

4.Earnings Per Share
Basic earnings per share (EPS) is calculated using the weighted average number of common shares outstanding during the period and includes the effect of any participating securities as appropriate. Participating securities consist of unvested restricted stock issued to our employees and non-employee directors that provide dividend rights.
Diluted EPS is calculated assuming the issuance of common shares for all potentially dilutive securities, provided the effect is not antidilutive. For the years ended December 31, 2016, 2015 and 2014,all periods presented, our contingent convertible senior notes did not have a dilutive effect and, therefore, were excluded from the calculation of diluted EPS. See Note 3 for further discussion of our convertible notes and contingent convertible senior notes.
For the years ended December 31, 2016, 2015 and 2014, sharesShares of common stock for the following dilutive securities were excluded from the calculation of diluted EPS as the effect was antidilutive.
  Years Ended December 31,
  2019 2018 2017
  (in millions)
Common stock equivalent of our preferred stock outstanding 58
 60
 60
Common stock equivalent of our convertible senior notes outstanding 124
 146
 146
Common stock equivalent of our preferred stock outstanding prior to exchange 1
 
 1
Participating securities 
 1
 1

Shares
(in millions)
Year Ended December 31, 2016
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock34
5.75% cumulative convertible preferred stock (series A)18
5.00% cumulative convertible preferred stock (series 2005B)5
4.50% cumulative convertible preferred stock6
Participating securities1
Common stock equivalent of our convertible senior notes outstanding:
5.5% convertible senior notes146
Common stock equivalent of our preferred stock outstanding
prior to exchange:
5.75% cumulative convertible preferred stock exchanged19
5.75% cumulative convertible preferred stock (series A) exchanged18
5.00% cumulative convertible preferred stock (series 2005B) exchanged
Year Ended December 31, 2015
Common stock equivalent of our preferred stock outstanding:
5.75% cumulative convertible preferred stock59
5.75% cumulative convertible preferred stock (series A)42
5.00% cumulative convertible preferred stock (series 2005B)6
4.50% cumulative convertible preferred stock6
Participating securities1
Year Ended December 31, 2014
Participating securities3




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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

For the year ended December 31, 2014, all outstanding equity securities convertible into common stock were included in the calculation of diluted EPS. A reconciliation of basic EPS and diluted EPS for the year ended December 31, 2014 is as follows: 
  Income (Numerator) 
Weighted
Average
Shares
(Denominator)
 
Per
Share
Amount  
  (in millions, except per share data)
For the Year Ended December 31, 2014:      
Basic EPS $1,273
 659
 $1.93
Effect of Dilutive Securities:      
Assumed conversion as of the beginning of the period
    of preferred shares outstanding during the period:
      
Common shares assumed issued for 5.75% cumulative convertible preferred stock 86
 59
  
Common shares assumed issued for 5.75% cumulative convertible preferred stock (series A) 63
 42
  
Common shares assumed issued for 5.00% cumulative convertible preferred stock (series 2005B) 10
 6
  
Common shares assumed issued for 4.50% cumulative convertible preferred stock 12
 6
  
Diluted EPS $1,444
 772
 $1.87



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


3.5.Debt
Our long-term debt consisted of the following as of December 31, 20162019 and 2015:2018:
  December 31, 2016 December 31, 2015
  
Principal
Amount
 Carrying
Amount
 Principal
Amount
 Carrying
Amount
  ($ in millions)
Term loan due 2021 $1,500
 $1,500
 $
 $
3.25% senior notes due 2016 
 
 381
 381
6.25% euro-denominated senior notes due 2017(a)
 258
 258
 329
 329
6.5% senior notes due 2017 134
 134
 453
 453
7.25% senior notes due 2018 64
 64
 538
 538
Floating rate senior notes due 2019 380
 380
 1,104
 1,104
6.625% senior notes due 2020 780
 780
 822
 822
6.875% senior notes due 2020 279
 279
 304
 304
6.125% senior notes due 2021 550
 550
 589
 589
5.375% senior notes due 2021 270
 270
 286
 286
4.875% senior notes due 2022 451
 451
 639
 639
8.00% senior secured second lien notes due 2022(b)
 2,419
 3,409
 2,425
 3,584
5.75% senior notes due 2023 338
 338
 384
 384
8.00% senior notes due 2025 1,000
 1,000
 
 
5.5% convertible senior notes due 2026(c)(e)
 1,250
 811
 
 
2.75% contingent convertible senior notes due 2035(d)
 2
 2
 2
 2
2.5% contingent convertible senior notes due 2037(d)(e)
 114
 112
 1,110
 1,027
2.25% contingent convertible senior notes due 2038(d)(e)
 200
 180
 340
 290
Revolving credit facility 
 
 
 
Debt issuance costs 
 (64) 
 (43)
Discount on senior notes 
 (16) 
 (4)
Interest rate derivatives(f)
 
 3
 
 7
Total debt, net 9,989
 10,441
 9,706
 10,692
Less current maturities of long-term debt, net(g)
 (506) (503) (381) (381)
Total long-term debt, net $9,483
 $9,938
 $9,325
 $10,311
 December 31, 2019 December 31, 2018
 
Principal
Amount
 Carrying
Amount
 Principal
Amount
 Carrying
Amount
 ($ in millions)
Revolving credit facility$1,590
 $1,590
 $419
 $419
Term loan due 20241,500
 1,470
 
 
11.5% senior secured second lien notes due 20252,330
 3,248
 
 
Floating rate senior notes due 2019
 
 380
 380
6.625% senior notes due 2020(a)
208
 208
 437
 437
6.875% senior notes due 202093
 93
 227
 227
6.125% senior notes due 2021167
 167
 548
 548
5.375% senior notes due 2021127
 127
 267
 267
4.875% senior notes due 2022(a)
338
 338
 451
 451
5.75% senior notes due 2023(a)
209
 209
 338
 338
7.00% senior notes due 2024624
 624
 850
 850
6.875% senior notes due 2025(b)
2
 2
 
 
8.00% senior notes due 2025246
 245
 1,300
 1,291
5.5% convertible senior notes due 2026(c)(d)(e)
1,064
 765
 1,250
 866
7.5% senior notes due 2026119
 119
 400
 400
8.00% senior notes due 202646
 44
 
 
8.00% senior notes due 2027253
 253
 1,300
 1,299
2.25% contingent convertible senior notes due 2038(c)

 
 1
 1
Debt issuance costs
 (44) 
 (53)
Interest rate derivatives
 
 
 1
Total debt, net8,916
 9,458
 8,168
 7,722
Less current maturities of long-term debt, net(f)
(385) (385) (381) (381)
Total long-term debt, net$8,531
 $9,073
 $7,787
 $7,341

___________________________________________
(a)
TheIn December 2019, we entered into a purchase and sale agreement to acquire $101 million principal amount of our 6.625% Senior Notes due 2020, 4.875% Senior Notes due 2022 and carrying amounts shown are based on5.75% Senior Notes due 2023. During the exchange ratefirst quarter of $1.0517 to €1.00 and $1.0862 to €1.00 as of December 31, 2016 and 2015, respectively. See Foreign Currency Derivatives in Note 11 for information on our related foreign currency derivatives.
2020, we repurchased the senior notes.
(b)The carrying amounts asOn February 1, 2019, we acquired the debt of WildHorse which consisted of 6.875% Senior Notes due 2025 and a revolving credit facility and in December 31, 2016 and 2015, include premium amounts of $990 million and $1.159 billion, respectively, associated2019 we extinguished the debt with proceeds from a troubled debt restructuring. The premium is being amortized based on an effective yield method.term loan issuance. See further discussion below.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(c)We are required to account for the liability and equity components of our convertible debt instruments separately and to reflect interest expense through the first demand repurchase date, as applicable, at the interest rate of similar nonconvertible debt at the time of issuance. The applicable rates for our 5.5% Convertible Senior Notes due 2026 and our 2.25% Contingent Convertible Senior Notes due 2038 are 11.5% and 8.0%, respectively.
(d)The conversion and redemption provisions of our convertible senior notes are as follows:
Optional Conversion by Holders. At the holder’s option, priorPrior to maturity under certain circumstances and at the holder’s option, the notes are convertibleconvertible. The notes may be converted into cash, our common stock, or a combination of cash and common stock, at our election. One triggering circumstance is when the price of our common stock exceeds
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

a threshold amount during a specified period in a fiscal quarter, beginning with the first quarter of 2017.quarter. Convertibility based on common stock price is measured quarterly. During the fourth quarter of 2019, the price of our common stock was below the threshold level and, as a result, the holders do not have the option to convert their notes in the first quarter of 2020 under this provision. The notes are also convertible, at the holder’s option, during specified five-day periods if the trading price of the notes is below certain levels determined by reference to the trading price of our common stock. The notes were not convertible under this provision during the year ended December 31, 2016.2019. Upon conversion of a convertible senior note, the holder will receive cash, common stock or a combination of cash and common stock, at our election, according to the conversion rate specified in the indenture.
The common stock price conversion threshold amount for the convertible senior notes is 130% of the conversion price.price of $8.568.
Optional Redemption by the Company. We may redeem the convertible senior notes for cash on or after September 15, 2019, if the price of our common stock exceeds 130% of the conversion price during a specified period at a redemption price of 100% of the principal amount of the notes.
(d)The repurchase, conversion, contingent interest and redemption provisions of our contingent convertible senior notes are as follows:
Holders’ Demand Repurchase Rights.Rights. The holders of our contingent convertible senior notes may require us to repurchase, in cash, all or a portion of their notes at 100% of the principal amount of the notes on any of four dates that are five, ten, fifteen and twenty years before the maturity date.
Optional Conversion by Holders. At the holder’s option, prior to maturity underupon certain circumstances, the notes are convertible into cash and, if applicable, our common stock using a net share settlement process. One triggering circumstance is when the price of our common stock exceeds a threshold amount during a specified period within a fiscal quarter. Convertibility based on common stock price is measured quarterly. During the specified period in the fourth quarter of 2016, the price of our common stock was below the threshold level for each series of the contingent convertible senior notes and, as a result, the holders do not have the option to convert their notes into cash or common stock in the first quarter of 2017 under this provision.
The notes are also convertible, at the holder’s option, during specified five-day periods if the trading price of the notes is below certain levels determined by reference to the trading price of our common stock. The notes were not convertible under this provision during the years ended December 31, 2016, 2015 and 2014. In general, upon conversion of a contingent convertible senior note, the holder will receive cash equal to the principal amount of the note and common stock for the note’s conversion value in excess of the principal amount.
Contingent Interest. We will pay contingent interest on the contingent convertible senior notes after they have been outstanding at least ten years during certain periods if the average trading price of the notes exceeds the threshold defined in the indenture.
The holders’ demand repurchase dates, the common stock price conversion threshold amounts (as adjusted to give effect to cash dividends on our common stock) and the ending date of the first six-month period in which contingent interest may be payable for the contingent convertible senior notes are as follows:
    Contingent  
    Convertible  
    Senior Notes    
 
Holders' Demand
Repurchase Dates
 Common Stock
 Price Conversion 
Thresholds
 
 Contingent Interest
First Payable
(if applicable)
2.75% due 2035 November 15, 2020, 2025, 2030 $45.02
 May 14, 2016
2.5% due 2037 May 15, 2017, 2022, 2027, 2032 $59.44
 November 14, 2017
2.25% due 2038 December 15, 2018, 2023, 2028, 2033 $100.20
 June 14, 2019
Optional Redemption by the Company. We may redeem the contingent convertible senior notes once they have been outstanding for ten years at a redemption price of 100% of the principal amount of the notes, payable in cash. In addition, we may redeem our 2.75% Contingent Convertible Senior Notes due 2035 at any time.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

fundamental changes.
(e)The carrying amounts as of December 31, 20162019 and 20152018, are reflected net of discounts of $461$299 million and $133$384 million, respectively, associated with the equity component of our convertible and contingent convertible senior notes. This amount is being amortized based on anthe effective yield method through the first demand repurchase date as applicable.
(f)See Interest Rate Derivatives in Note 11 for further discussion related to these instruments.
(g)As of December 31, 2016,2019, net current maturities of long-term debt net includes our 6.25% Euro-denominated6.625% Senior Notes due 2017, 6.5%August 2020 and our 6.875% Senior Notes due 2017November 2020. As of December 31, 2018, net current maturities of long-term debt includes our Floating Rate Senior Notes due April 2019 and our 2.5%2.25% Contingent Convertible Senior Notes due 2037 (2037 Notes). As discussed in footnote (b) above, the holders of our 2037 Notes could exercise their individual demand repurchase rights on May 15, 2017, which would require us to repurchase all or a portion of the principal amount of the notes. As of December 31, 2016, there was $2 million associated with the equity component of the 2037 Notes.2038.
Total principal amount of debtDebt maturities using the earliest demand repurchase date for contingent convertible senior notes, for the next five years ended after December 31, 2016 and thereafter are as follows:
  
Principal Amount
of Debt Securities
  ($ in millions)
2020 $385
2021 294
2022 289
2023 1,764
2024 2,124
Thereafter 4,060
Total $8,916

  
Principal Amount
of Debt Securities
  ($ in millions)
2017 $506
2018 264
2019 380
2020 1,061
2021 2,320
2022 and thereafter 5,458
Total $9,989
Debt Issuances and Retirements 2019
See Note 23 for discussion of debt that has been retired, repurchased and redeemed in 2017.
Term Loan Facility
Loan.In 2016,December 2019, we entered into a secured five-year4.5-year term loan facility in an aggregate principal amount of $1.5 billion for net proceeds of approximately $1.476$1.455 billion. Our obligations under the new facility are unconditionally guaranteed on a joint and several basis by the same subsidiaries that guarantee our revolving credit facility and second lien notes (including BVL and senior notesits subsidiaries) and are secured by first-priority liens on the same collateral securing our revolving credit facility (with a position in the collateral proceeds waterfall junior to the revolving credit facility). The term loan bears interest at a rate of London Interbank Offered Rate (LIBOR) plus 7.50%8.00% per annum, subject to a 1.00% LIBOR floor, or the Alternative Base Rate (ABR) plus 6.50%7.00% per annum, subject to a 2.00% ABR floor, at our option. The loan was made at par without original discount.98% of par. We used the net proceeds to finance tender offers for our unsecured notes. BVL senior notes and to repay amounts outstanding under our BVL revolving credit facility. We recorded an aggregate net gain of approximately $4 million associated with the retirement of our BVL senior notes and the BVL revolving credit facility.
The term loan matures in August 2021June 2024 and voluntary prepayments are subject to a make-whole premium prior to the second18-month anniversary of the closing of the term loan, a premium to par of 4.25%5.00% from the second18-month anniversary until but excluding the third30-month anniversary, a premium to par of 2.125%2.5% from the third30-month anniversary until but excluding
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the fourth42-month anniversary and at par beginning on the fourth42-month anniversary. The term loan may be subject to mandatory prepayments and offers to purchaseprepay with net cash proceeds of certain issuances of debt, certain asset sales and other dispositions of collateral and upon a change of control.
The term loan contains covenants limiting our ability to incur additional indebtedness, incur liens, consummate mergers and similar fundamental changes, make restricted payments, sell collateral and use proceeds from such sales, make investments, repay certain subordinate, unsecured or junior lien indebtedness, and enter into transactions with affiliates.
Events of default under the term loan include, among other things, nonpayment of principal, interest or other amounts; violation of covenants; incorrectness of representations and warranties in any material respect; cross-payment default and cross acceleration with respect to other indebtedness with an outstanding principal balance of $125 million or more; bankruptcy; judgments involving liability of $125 million or more that are not paid; and ERISA events. Many events of default are subject to customary notice and cure periods.
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Senior Secured Second Lien Notes
. In December 2015,2019, we completed private offers to exchange newly issued 8.00%11.5% Senior Secured Second Lien Notes due 2022 (Second2025 (the “Second Lien Notes)Notes”) for certainthe following outstanding senior unsecured notes and contingent convertible senior notes (Existing Notes). (the “Existing Notes”):
  Notes Exchanged
  ($ in millions)
7.00% senior notes due 2024 $226
8.00% senior notes due 2025 999
8.00% senior notes due 2026 873
7.5% senior notes due 2026 281
8.00% senior notes due 2027 837
Total $3,216
The Second Lien Notes are secured second lien obligations and are effectivelycontractually junior to our current and future secured first lien indebtedness, including indebtedness incurred under our revolving credit facility and our term loan facility, to the extent of the value of the collateral securing such indebtedness, effectively senior to all of our existing and future unsecured indebtedness, including our outstanding senior notes, to the extent of the value of the collateral, and senior to any future subordinated indebtedness that we may incur. We have the option to redeem the Second Lien Notes, in whole or in part, at specified make-whole or redemption prices. Our Second Lien Notes are governed by an indenture containing covenants that may limit our ability and our subsidiaries’ ability to create liens securing certain indebtedness, make certain restricted payments, enter into certain sale-leaseback transactions, consolidate, merge or transfer assets and dispose of certain collateral and use proceeds from dispositions of certain collateral. As a holding company, Chesapeake owns no operating assets and has no significant operations independent of its subsidiaries. Chesapeake’s obligations under the Second Lien Notes are jointly and severally, fully and unconditionally guaranteed jointlyby the same subsidiaries that guarantee our revolving credit facility and severally, by certain ofterm loan facility (including BVL and its subsidiaries). See Note 25 for condensed consolidating financial information regarding our directguarantor and indirect wholly ownednon-guarantor subsidiaries.
CertainThe exchanges of the Existing Notes that were exchanged(with a carrying value of $3.152 billion) for the$2.210 billion of Second Lien Notes, were accounted for as a troubled debt restructuring (TDR)(“TDR”). For the exchanges classified as a TDR, ifmajority of the notes in this exchange, the future undiscounted cash flows of the newly issued debt are lesswere greater than the net carrying value of the original debt, no gain was recognized and a gain is recorded for the difference andnew effective interest rate was established based on the carrying value of the newly issued debt is adjusted to the future undiscounted cash flow amount and no future interest expense is recorded. All future interest payments on the newly issued debt reduce the carrying value. Accordingly, we recognized a gain of $304 million in our 2015 consolidated statement of operations, and the remaining reduction in principaloriginal debt. The amount of Existing Notes ($990 millionthe extinguished debt will be amortized over the life of the notes as of December 31, 2016) is included in the carrying value of our Second Lien Notes.a reduction to interest expense. As a result, our reported interest expense will be significantly less than the contractual interest payments throughout the term of the Second Lien Notes. For
In a subsequent transaction in December 2019, we issued an additional $120 million of 11.5% Senior Secured Second Lien Notes due 2025 pursuant to a private offering, at 89.75% of par. Additionally, in December 2019, we entered into a purchase and sale agreement with the remaining TDRsame counterparty to acquire $101 million principal amount of our 6.625% Senior Notes due 2020, 4.875% Senior Notes due 2022 and 5.75% Senior Notes due 2023 at a discount. During the first quarter of 2020, we repurchased the senior notes.
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Exchanges of Senior Notes for Common Stock. We privately negotiated exchanges whereof approximately $507 million principal amount of our outstanding senior notes for 235,563,519 shares of common stock and $186 million principal amount of our outstanding convertible senior notes for 73,389,094 shares of common stock. We recorded an aggregate net gain of approximately $64 million associated with the future undiscountedexchanges.
We issued at par approximately $919 million of 8.00% Senior Notes due 2026 (“2026 notes”) pursuant to a private exchange offer for the following outstanding senior unsecured notes:
  Notes Exchanged
  ($ in millions)
6.625% senior notes due 2020 $229
6.875% senior notes due 2020 134
6.125% senior notes due 2021 381
5.375% senior notes due 2021 140
Total $884

We may redeem some or all of the 2026 notes at any time prior to March 15, 2022 at a price equal to 100% of the principal amount of the notes to be redeemed plus a “make-whole” premium. At any time prior to March 15, 2022, we also may redeem up to 35% of the aggregate principal amount of each series of notes with an amount of cash flows arenot greater than the net carrying valuecash proceeds of certain equity offerings at a specified redemption price. In addition, we may redeem some or all of the original2026 notes at any time on or after March 15, 2022 at the redemption prices in accordance with the terms of the notes, the indenture and supplemental indenture governing the notes. These senior notes are unsecured obligations of Chesapeake and rank equally in right of payment with all of our other existing and future senior unsecured indebtedness and rank senior in right of payment to all of our future subordinated indebtedness. Our obligations under the senior notes are jointly and severally, fully and unconditionally guaranteed by all of our wholly owned subsidiaries that guarantee the Chesapeake revolving credit facility and certain other unsecured senior notes. We accounted for the exchange as a modification to existing debt and no gain is recognizedor loss was recognized.
We repaid upon maturity $380 million principal amount of our Floating Rate Senior Notes due April 2019 with borrowings from our Chesapeake revolving credit facility.
Debt Issuances and Retirements 2018
We issued at par $850 million of 7.00% Senior Notes due 2024 (“2024 notes”) and $400 million of 7.50% Senior Notes due 2026 (“2026 notes”) pursuant to a new effectivepublic offering for net proceeds of approximately $1.236 billion. We may redeem some or all of the 2024 notes at any time prior to April 1, 2021 and some or all of the 2026 notes at any time prior to October 1, 2021, in each case at a price equal to 100% of the principal amount of the notes to be redeemed plus a “make-whole” premium. At any time prior to April 1, 2021, with respect to the 2024 notes, and October 1, 2021, with respect to the 2026 notes, we also may redeem up to 35% of the aggregate principal amount of each series of notes with an amount of cash not greater than the net cash proceeds of certain equity offerings at a specified redemption price. In addition, we may redeem some or all of the 2024 notes at any time on or after April 1, 2021 and some or all of the 2026 notes at any time on or after October 1, 2021, in each case at the redemption prices in accordance with the terms of the notes and the indenture and supplemental indenture governing the notes. These senior notes are unsecured obligations of Chesapeake and rank equally in right of payment with all of our other existing and future senior unsecured indebtedness and rank senior in right of payment to all of our future subordinated indebtedness. Our obligations under the senior notes are jointly and severally, fully and unconditionally guaranteed by certain of our direct and indirect wholly owned subsidiaries.
We used the net proceeds from the 2024 and 2026 notes, together with cash on hand and borrowings under the Chesapeake revolving credit facility, to repay in full $1.233 billion of borrowings under our secured term loan due 2021 for $1.285 billion, which included a $52 million make-whole premium. We recorded a loss of approximately $65 million associated with the repayment of the term loan, including the make-whole premium and the write-off of $13 million of associated deferred charges.
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We used a portion of the proceeds from the sale of our Utica Shale assets in Ohio to redeem all of the $1.416 billion aggregate principal amount outstanding of our 8.00% Senior Secured Second Lien Notes due 2022 for $1.477 billion. We recorded a gain of approximately $331 million associated with the redemption, including the realization of the remaining $391 million difference in principal and book value due to troubled debt restructuring accounting in 2015, offset by the make-whole premium of $60 million.
We repaid upon maturity $44 million principal amount of our 7.25% Senior Notes due 2018.
As required by the terms of the indenture for our 2.25% Contingent Convertible Senior Notes due 2038 (“2038 notes”), the holders were provided the option to require us to purchase on December 15, 2018, all or a portion of the holders’ 2038 notes at par plus accrued and unpaid interest rate is established. Forup to, but excluding, December 15, 2018. On December 17, 2018, we paid an aggregate of approximately $8 million to purchase all of the other Existing Notes2038 notes that were exchanged that didtendered and not qualifywithdrawn. An aggregate of $1 million principal amount of the 2038 notes remained outstanding as a TDR,of December 31, 2018. Subsequent to December 31, 2018, we accounted forredeemed these exchanges as either a modification or extinguishment.Direct costs incurred of $30 million in 2015notes at par and discharged the related to the notes exchange were expensed and are included within gains (losses) on purchases or exchanges of debt in our consolidated statement of operations.indenture.
Senior Notes, Contingent Convertible Senior Notes and Convertible Senior Notes
TheOur senior notes and theour convertible senior notes are unsecured senior obligations of Chesapeake and rank equally in right of payment with all of our other existing and future senior unsecured indebtedness and rank senior in right of payment to all of our future subordinated indebtedness. Chesapeake’sOur obligations under the senior notes and the convertible senior notes are jointly and severally, fully and unconditionally guaranteed jointly and severally, by certain of our direct and indirect wholly owned subsidiaries.
Chesapeake Energy Corporation is a holding company and has no independent assets or operations. Our obligations under our outstanding senior notes and convertible senior notes are fully and unconditionally guaranteed, jointly and severally, by certain of our 100% owned subsidiaries on a senior unsecured basis. Our non-guarantor subsidiaries are minor and, as such, we have not included condensed See Note 25 for consolidating financial information in the notes toregarding our consolidated financial statements.guarantor and non-guarantor subsidiaries.
We may redeem the senior notes, other than the convertible senior notes, at any time at specified make-whole or redemption prices. Our senior notes are governed by indentures containing covenants that may limit our ability and our subsidiaries’ ability to incur certain secured indebtedness, enter into sale-leaseback transactions, and consolidate, merge or transfer assets. The indentures governing the senior notes and the convertible senior notes do not have any financial or restricted payment covenants. Indentures for the Second Lien Notes, senior notes and convertible senior notes have cross default provisions that apply to other indebtedness the CompanyChesapeake or any guarantor subsidiary may have from time to time with an outstanding principal amount of at least $50 million or $75 million, depending on the indenture.
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We are required to account for the liability and equity components of our convertible debt instruments separately and to reflect interest expense through the first demand repurchase date, as applicable, at the interest rate of similar nonconvertible debt at the time of issuance. The applicable rates for our 2.5% Contingent Convertible Senior Notes due 2037, our 2.25% Contingent Convertible Senior Notes due 2038 and our 5.5% Convertible Senior Notes due 2026 are 8.0%, 8.0% and 11.5%, respectively.
During 2016, we issued in a private placement $1.0 billion principal amount of unsecured 8.00% Senior Notes due 2025 at a discount for net proceeds of approximately $975 million. Some or all of the notes may be redeemed at any time prior to January 15, 2020, subject to a make-whole premium. In addition, we may redeem some or all of the notes at any time on or after January 15, 2020, at the applicable redemption price in accordance with the terms of the notes and the indenture and supplemental indenture governing the notes. In addition, subject to certain conditions, Chesapeake may redeem up to 35% of the aggregate principal amount of the notes at any time prior to January 15, 2020, at a price equal to 108% of the principal amount of the notes to be redeemed using the net proceeds of certain equity offerings by Chesapeake.
During 2016, we issued in a private placement $1.25 billion principal amount of unsecured 5.5% Convertible Senior Notes due 2026 at par for net proceeds of approximately $1.235 billion. The notes are convertible, under certain specified circumstances, into cash, common stock, or a combination of cash and common stock, at our election. We accounted for the liability and equity components separately and reflected interest expense at the interest rate of similar nonconvertible debt at the time of issuance. The allocation to the equity component of the convertible notes was $445 million ($165 million tax expense). Additionally, debt issuance costs were allocated in proportion to the liability and equity components and accounted for as debt issuance costs and equity issuance costs, respectively. The accretion of the resulting discount on the debt is recognized through the convertible note’s maturity date as a component of interest expense, thereby increasing the amount of interest expense required to be recognized with respect to such instruments.
During 2016, we used the net proceeds from our term loan and convertible and senior notes issuances discussed above, together with cash on hand, to purchase and retire $1.451 billion principal amount of our outstanding senior notes and $708 million principal amount of our outstanding contingent convertible senior notes for an aggregate $2.078 billion pursuant to tender offers.
During 2016, in addition to the repayment upon maturity of $259 million principal amount of our 3.25% Senior Notes due 2016, we repurchased in the open market approximately $325 million principal amount of our outstanding senior notes for $300 million and $141 million principal amount of our outstanding contingent convertible senior notes for $86 million.
Additionally, we privately negotiated exchanges of approximately $290 million principal amount of our outstanding senior notes for 53,923,925 shares of common stock and $287 million principal amount of our outstanding contingent convertible senior notes for 55,427,782 shares of common stock.
For the year ended December 31, 2016, we recorded an aggregate net gain of approximately $236 million associated with the tender offers, debt repurchases and exchanges discussed above, which was net of $26 million ($10 million tax benefit) associated with the equity component of the retired contingent convertible senior notes.
During 2015, as required by the terms of the indenture for our 2.75% Contingent Convertible Senior Notes due 2035 (the 2035 Notes), the holders were provided the option to require us to purchase on November 15, 2015, all or a portion of the holders’ 2035 Notes at par plus accrued and unpaid interest up to, but excluding, November 15, 2015. On November 16, 2015, we paid an aggregate of approximately $394 million to purchase all of the 2035 Notes that were tendered and not withdrawn. An aggregate of $2 million principal amount of the 2035 Notes remains outstanding as of December 31, 2016.
During 2015, we repurchased in the open market approximately $119 million aggregate principal amount of our 3.25% Senior Notes due 2016 for cash. We recorded a gain of approximately $5 million associated with the repurchase.
During 2014, we issued $3.0 billion in aggregate principal amount of senior notes at par. The offering included two series of notes: $1.5 billion in aggregate principal amount of Floating Rate Senior Notes due 2019 and $1.5 billion in aggregate principal amount of 4.875% Senior Notes due 2022. We used a portion of the net proceeds of $2.966 billion to repay the borrowings under, and terminate, our then-existing term loan credit facility. We used the remaining proceeds along with cash on hand to redeem the remaining $97 million principal amount of the 6.875% Senior Notes
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due 2018 and to purchase and redeem the remaining $1.265 billion principal amount of the 9.5% Senior Notes due 2015 for $1.454 billion. We recorded a loss of approximately $6 million associated with the redemption of the 6.875% Senior Notes due 2018, which consisted of $5 million in premiums and $1 million of unamortized deferred charges. We recorded a loss of approximately $99 million associated with the purchase and redemption of the 9.5% Senior Notes due 2015, which consisted of $87 million in premiums, $9 million of unamortized discount and $3 million of unamortized deferred charges.
Revolving Credit Facility
We have a $4.0 billion senior securedOur revolving credit facility (currentlymatures in September 2023 and the current aggregate commitment of the lenders and borrowing base under the facility is $3.0 billion. The revolving credit facility provides for an accordion feature, pursuant to which the aggregate commitments thereunder may be increased to up to $4.0 billion from time to time, subject to a $3.8 billionagreement of the participating lenders and certain other customary conditions. Scheduled borrowing base) that matures in December 2019.base redeterminations will continue to occur semiannually. Our next borrowing base redetermination is scheduled for the second quarter of 2020. As of December 31, 2016,2019, we had no outstanding borrowings of $1.590 billion under theour revolving credit facility and had used $1.036 billion of the revolving credit facility$59 million for various letters of credit.
Borrowings under our revolving credit (includingfacility bear interest at an alternative base rate (ABR) or LIBOR, at our election, plus an applicable margin ranging from 1.50%-2.50% per annum for ABR loans and 2.50%-3.50% per annum for LIBOR loans, depending on the $461 million supersedeas bond with respectpercentage of the borrowing base then being utilized.
Our revolving credit facility is subject to the 2019 Notes litigation discussed in Note 4).various financial and other covenants. The terms of the revolving credit facility include covenants limiting, among other things, our ability to incur additional indebtedness, make investments or loans, createincur liens, consummate mergers and similar fundamental changes, make restricted payments, make investments in unrestricted subsidiaries and enter into transactions with affiliates. We
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On December 3, 2019, we entered into the second amendment to our credit agreement. Among other things, the amendment (i) permitted the issuance of certain secured indebtedness with a lien priority or proceeds recovery behind the obligations under the credit agreement without a corresponding 25% reduction in the borrowing base under the credit agreement, if issued by the next scheduled redetermination of the borrowing base, (ii) increased the amount of indebtedness that can be secured on a pari passu first-lien basis with (and with recovery proceeds behind) the obligations under the credit agreement from $1 billion to $1.5 billion, (iii) increased the applicable margin as defined in the credit agreement on borrowings under the credit agreement by 100 basis points, (iv) requires liquidity of at least $250 million at all times, (v) for each fiscal quarter commencing with the fiscal quarter ending December 31, 2019, replaced the secured leverage ratio financial covenant with a requirement that the first lien secured leverage ratio not exceed 2.50 to 1 as of the end of such fiscal quarter, (vi) increased the maximum permitted leverage ratio as of the end of each fiscal quarter to 4.50 to1 through the fiscal quarter ending December 31, 2021, with step-downs to 4.25 to 1 for the fiscal quarter ending March 31, 2022 and to 4.00 to 1 for each fiscal quarter ending thereafter, and (vii) required that we use the aggregate net cash proceeds of certain asset sales in excess of $50 million to prepay certain indebtedness and/or reduce commitments under our credit agreement, until the retirement of all of our senior notes maturing before September 12, 2023. On December 26, 2019, we entered into the third amendment to our credit agreement, which, among other things, permitted the issuance of certain secured indebtedness with a lien priority behind the obligations under the credit agreement without a corresponding 25% reduction in the borrowing base under the credit agreement, if issued by December 31, 2019 and issued in exchange for, or the proceeds used to refinance, our senior notes.
As of December 31, 2019, we were in compliance with all applicable financial covenants under the credit agreement as of December 31, 2016.
During 2016,and we entered into the third amendmentwere able to our revolving credit facility. Pursuantborrow up to the amendment, our borrowing base was reaffirmed in the amount of $4.0 billion and the next scheduled borrowing base redetermination review was postponed until June 15, 2017, with the consenting lenders agreeing not to exercise their interim redetermination right prior to that date. Our borrowing base may be reduced if we dispose of a certain percentage of the value of collateral securing the facility. As a result of certain asset sales discussed in Note 12 and certain other sales of collateral since the date of the most recent amendment, our borrowing base was reduced to $3.8 billion as of December 31, 2016. The amendment also provides temporary financial covenant relief, with the revolving credit facility’s existing first lien secured leverage ratio and net debt to capitalization ratio suspended until September 30, 2017 and the interest coverage ratio maintenance covenant reduced as noted below. In addition, we agreed to grant liens and security interests on a majority of our assets, as well as maintain a minimum liquidity amount (defined as cash and cash equivalents andfull availability under our revolving credit facility)facility.
Phase-Out of $500 million untilLIBOR
In July 2017, the suspensionUK's Financial Conduct Authority, which regulates LIBOR, announced that it intends to phase out LIBOR as a benchmark by the end of 2021. At the existing maintenance covenants ends.
The amendment reduces the interest coverage ratio from 1.1 to 1.0 to 0.65 to 1.0 through the first quarter of 2017, after which it will increase to 0.70 to 1.0 for the second quarter of 2017, 1.2 to 1.0 for the third quarter of 2017 and 1.25 to 1.0 thereafter. The amendment also includes a collateral value coverage test whereby if the collateral value coverage ratio, tested as of December 31, 2016, falls below 1.1 to 1.0, the $500 million minimum liquidity covenant increases to $750 million, and if the collateral value coverage ratio, tested as of March 31, 2017, falls below 1.25 to 1.0,present time, our borrowing ability will be reduced in order to satisfy such ratio. The amendment also gives us the ability to incur up to $2.5 billion of first lien indebtedness secured on a pari passu basis with the existing obligations under the credit agreement, subject to a position in the collateral proceeds waterfall in favor of the revolving lenders and affiliated hedge providers and the other limitations on junior lien debt set forth in the credit agreement. After taking into account the term loan, the amount of additional first lien indebtedness permitted by the revolving credit facility is $1.0 billion.and our term loan have terms that extend beyond 2021. Our revolving credit facility and our term loan each provide for a mechanism to amend the underlying agreements to reflect the establishment of an alternate rate of interest upon the occurrence of certain events related to the phase-out of LIBOR. However, we have not yet pursued any technical amendment or other contractual alternative to our revolving credit facility or term loan to address this matter. We are currently evaluating the potential impact of the eventual replacement of the LIBOR interest rate.
Fair Value of Debt
We estimate the fair value of our senior notes based on the market value of our publicly traded debt as determined based on the yield of our senior notes (Level 1). The fair value of all other debt is based on a market approach using estimates provided by an independent investment financial data services firm (Level 2). Fair value is compared to the carrying value, excluding the impact of interest rate derivatives, in the table below.below:
  December 31, 2019 December 31, 2018
  
Carrying
Amount
 
Estimated
Fair Value
 
Carrying
Amount
 
Estimated
Fair Value
    ($ in millions)  
Short-term debt (Level 1) $385
 $360
 $381
 $379
Long-term debt (Level 1) $753
 $622
 $3,495
 $3,173
Long-term debt (Level 2) $8,320
 $6,085
 $3,846
 $3,644

  December 31, 2016 December 31, 2015
  
Carrying
Amount
 
Estimated
Fair Value
 
Carrying
Amount
 
Estimated
Fair Value
    ($ in millions)  
Short-term debt (Level 1) $503
 $511
 $381
 $366
Long-term debt (Level 1) $3,271
 $3,216
 $6,720
 $2,546
Long-term debt (Level 2) $6,664
 $6,654
 $3,584
 $1,189
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4.6.Contingencies and Commitments
Contingencies
Litigation and Regulatory Proceedings
The Company isWe are involved in a number of litigation and regulatory proceedings (includingincluding those described below).below. Many of these proceedings are in early stages, and many of them seek or may seek damages and penalties, the amount of which is indeterminate. We estimate and provide for potential losses that may arise out of litigation and regulatory proceedings to the extent that such losses are probable and can be reasonably estimated. Significant judgment is required in making these estimates and our final liabilities may ultimately be materially different. Our total estimatedaccrued liability in respect of litigation and regulatory proceedings is determined on a case-by-case basis and represents an estimate of probable losses after considering, among other factors, the progress of each case or proceeding, our experience and the experience of others in similar cases or proceedings, and the opinions and views of legal counsel. We account for legal defense costsSignificant judgment is required in the period the costs are incurred.making these estimates and our final liabilities may ultimately be materially different.
2016 Shareholder Litigation. On April 19, 2016, a shareholder lawsuit was filed in the U.S. District Court for the Western District of Oklahoma against the Company and current and former directors and officers of the Company alleging, among other things, violation of and conspiracy to violate the federal Racketeer Influenced and Corrupt Organizations Act, breach of fiduciary duties, waste of corporate assets, gross mismanagement and violations of Sections 10(b) and Rule 10b-5 of the Exchange Act related to actions allegedly taken by such persons since 2008. The lawsuit sought to assert derivative and direct claims, certification as a class action, damages, attorneys’ fees and other costs. The District Court dismissed the plaintiffs’ claims on August 30, 2016.
Regulatory and Related Proceedings. The Company has received, from the U.S. Department of Justice (DOJ) and certain state governmental agencies and authorities, subpoenas and demands for documents, information and testimony in connection with investigations into possible violations of federal and state antitrust laws relating to our purchase and lease of oil and natural gas rights in various states. The Company also has received DOJ, U.S. Postal Service and state subpoenas seeking information on the Company’s royalty payment practices. Chesapeake has engaged in discussions with the DOJ, U.S. Postal Service and state agency representatives and continues to respond to such subpoenas and demands.
In addition, the Company received a DOJ subpoena and a voluntary document request from the SEC seeking information on our accounting methodology for the acquisition and classification of oil and natural gas properties and related matters. Chesapeake has engaged in discussions with the DOJ and SEC about these matters. On October 4, 2016, a securities class action was filed in the U.S. District Court for the Western District of Oklahoma against the Company and certain current directors and officers of the Company alleging, among other things, violations of federal securities laws for purported misstatements in the Company’s SEC filings and other public disclosures regarding the Company’s accounting for the acquisition and classification of oil and natural gas properties. The lawsuit seeks certification as a class action, damages, attorneys’ fees and other costs.
Redemption of 2019 Notes. As previously disclosed in the 2015 Form 10-K, in connection with the litigation related to the Company’s notice issued on March 15, 2013, to redeem all of the 2019 Notes at par (plus accrued interest through the redemption date) pursuant to the special early redemption provision of the supplemental indenture governing the 2019 Notes, the Company filed a notice of appeal on July 27, 2015, of an amended judgment entered on July 17, 2015, by the U.S. District Court for the Southern District of New York awarding the Trustee for the 2019 Notes $380 million plus prejudgment interest in the amount of $59 million. The Company posted a supersedeas bond in the amount of $461 million (reflected as an outstanding letter of credit under the Company’s revolving credit facility) to stay execution of the judgment while appellate proceedings are pending. The Company accrued a loss contingency of $100 million for this matter in 2014 and an additional $339 million in 2015. On September 15, 2016, the United States Court of Appeals for the Second Circuit affirmed the trial court’s ruling. On February 2, 2017, the Company filed a petition for writ of certiorari with the United States Supreme Court seeking review of the Court of Appeals’ decision.
Business Operations. Chesapeake is We are involved in various other lawsuits and disputes incidental to itsour business operations, including commercial disputes, personal injury claims, royalty claims, property damage claims and contract actions. With regard to contract actions, various mineral or leasehold owners have filed lawsuits against us seeking specific performance to require us to acquire their oil and natural gas interests and pay acreage bonus payments, damages based on breach of contract and/or, in certain cases, punitive damages based on alleged fraud. The Company has successfully defended a number of these failure-to-close cases in various courts and has settled and resolved other such cases and disputes.
Regarding royalty claims, ChesapeakeWe and other natural gas producers have been named in various lawsuits alleging royalty underpayment.underpayment of royalties and other shares of the proceeds of production. The suitslawsuits against us allege, among other things, that we used below-market prices, made improper deductions, usedutilized improper measurement techniques, and/or entered into arrangements with affiliates that resulted in underpayment of royaltiesamounts owed in connection with the production and sale of natural gas and NGL.NGL, or similar theories. These lawsuits include cases filed by individual royalty owners and putative class actions, some of which seek to certify a statewide class. The lawsuits seek compensatory, consequential, treble, and punitive damages, restitution and disgorgement of profits, declaratory and injunctive relief regarding our payment practices, pre-and post-judgment interest, and attorney’s fees and costs. Plaintiffs have varying royalty provisions in their respective leases, oil and gas law varies from state to state, and royalty owners and producers differ in their interpretation of the legal effect of lease provisions governing royalty calculations. The Company hasWe have resolved a number of these claims through negotiated settlements of past and future royaltiesroyalty obligations and hashave prevailed in various other lawsuits. We are currently defending numerous lawsuits seeking damages with respect to royalty underpayment of royalties or other shares of the proceeds of production in variousmultiple states where we have operated, including but not limited to, Texas, Pennsylvania, Ohio, Oklahoma, Kentucky, Louisiana and Arkansas. These lawsuits include cases filed by individual royalty owners and putative class actions, some of which seek to certify a statewide class. The Company also has received DOJ, U.S. Postal Service and state subpoenas or information requests seeking information on the Company’s royalty payment practices.
Chesapeake is defending numerous lawsuits filed by individual royalty owners alleging royalty underpayment with respect to properties in Texas. These lawsuits, organized for pre-trial proceedings with respect to the Barnett Shale and Eagle Ford Shale, respectively, generally allege that Chesapeake underpaid royalties by making improper deductions, using incorrect production volumes and similar theories. Chesapeake expects that additional lawsuits will continue to be pursued and that new plaintiffs will file other lawsuits making similar allegations.those discussed below.
On December 9, 2015, the Commonwealth of Pennsylvania, throughby the Office of Attorney General, filed a lawsuit in the Bradford County Court of Common Pleas related to royalty underpayment and lease acquisition and accounting practices with respect to properties in Pennsylvania. The lawsuit, which primarily relates to the Marcellus Shale and Utica Shale, alleges that Chesapeakewe violated the Pennsylvania Unfair Trade Practices and Consumer Protection Law (UTPCPL) by making improper deductions and entering into arrangements with affiliates that resulted in underpayment of royalties. The lawsuit includes other UTPCPL claims and antitrust claims, including that a joint exploration agreement to which Chesapeake iswe are a party established unlawful market allocation for the acquisition of leases. The lawsuit seeks statutory restitution, civil penalties and costs, as well as a temporary injunction from exploration and drilling activities in Pennsylvania until restitution, penalties and costs have been paid, and a permanent injunction from further violations of the UTPCPL. Chesapeake has filed preliminary objectionsWe intend to the most recently amended complaint.vigorously defend these claims.
Putative statewide class actions in Pennsylvania and Ohio and purported class arbitrations in Pennsylvania have been filed on behalf of royalty owners asserting various claims for damages related to alleged underpayment of royalties as a result of the Company’s divestiture of substantially all of itsour midstream business and most of itsour gathering assets in 2012 and 2013. These cases include claims for violation of and conspiracy to violate the federal Racketeer Influenced and Corrupt Organizations Act and for an unlawful market allocation agreement for mineral rights. One of the cases includes claims ofrights, intentional interference with contractual relations, and violations of antitrust laws related to purported markets for gas mineral rights, operating rights and gas gathering sources. These lawsuits seek in aggregate compensatory, consequential, treble, and punitive damages, restitution and disgorgement of profits, declaratory and injunctive relief regarding our royalty payment practices, pre-and post-judgment interest, and attorney’s fees and costs. On December 20, 2017 and August 9, 2018, we reached tentative settlements to resolve substantially all Pennsylvania civil royalty cases for a total of approximately $36 million.
We believe losses are reasonably possible in certain of the pending royalty cases for which we have not accrued a loss contingency, but we are currently unable to estimate an amount or range of loss or the impact the actions could have on our future results of operations or cash flows. Uncertainties in pending royalty cases generally include the complex nature of the claims and defenses, the potential size of the class in class actions, the scope and types of the properties and agreements involved, and the applicable production years.
On July 24, 2018, Healthcare of Ontario Pension Plan (HOOPP) filed a demand for arbitration with the American Arbitration Association regarding HOOPP’s purchase of our interest in Chaparral Energy, Inc. stock for $215 million on January 5, 2014. HOOPP claims that we engaged in material misrepresentations and fraud, and that we violated the Exchange Act and Oklahoma Uniform Securities Act. HOOPP seeks either rescission or $215 million in monetary damages, and in either case, interest, attorney’s fees, disgorgement and punitive damages. We intend to vigorously defend these claims.
In February 2019, a putative class action lawsuit in the District Court of Dallas County, Texas was filed against FTS International, Inc. (“FTSI”), certain investment banks, FTSI’s directors including certain of our officers and certain shareholders of FTSI including us. The Company is also defending lawsuits alleginglawsuit alleges various violations of Sections 11 (with respect to certain of our officers in their capacities as directors of FTSI) and 15 (with respect to such officers and us) of the Sherman AntitrustSecurities Act of 1933 in connection with public disclosure made during the initial public offering of FTSI. The suit seeks damages in excess of $1,000,000 and state antitrust laws.attorneys’ fees and other expenses. We intend to vigorously defend these claims.
Environmental Contingencies
The nature of the oil and gas business carries with it certain environmental risks for us and our subsidiaries. We have implemented various policies, programs, procedures, training and audits to reduce and mitigate such environmental risks. We conduct periodic reviews, on a company-wide basis, to assess changes in our environmental risk profile. Environmental reserves are established for environmental liabilities for which economic losses are probable and reasonably estimable. We manage our exposure to environmental liabilities in acquisitions by using an evaluation process that seeks to identify pre-existing contamination or compliance concerns and address the potential liability. Depending on the extent of an identified environmental concern, we may, among other things, exclude a property from the transaction, require the seller to remediate the property to our satisfaction in an acquisition or agree to assume liability for the remediation of the property.
We are named as a defendant in numerous lawsuits in Oklahoma alleging that we and other companies have engaged in activities that have caused earthquakes. These lawsuits seek compensation for injury to real and personal property, diminution of property value, economic losses due to business interruption, interference with the use and enjoyment of property, annoyance and inconvenience, personal injury and emotional distress.  In 2016, putative class action lawsuits were filedaddition, they seek the reimbursement of insurance premiums and the award of punitive damages, attorneys’ fees, costs, expenses and interest. We intend to vigorously defend these claims.
We previously disclosed ongoing discussions between our subsidiary, Chesapeake Appalachia, L.L.C. (CALLC) and the Pennsylvania Department of Environmental Protection related to gas migration in the United States District Court forvicinity of certain of our wells in Bradford County. Those concerns were resolved by the Western Districtparties on August 28, 2019.  Pursuant to the settlement, CALLC paid a civil penalty of Oklahoma and in Oklahoma state courts, and an individual lawsuit was filed in the United States District Court of Kansas, in each case against the Company and other defendants. The lawsuits generally allege that, since 2007 and continuing through April 2013, the defendants conspired to rig bids and depress the market for the purchases of oil and natural gas leasehold interests and properties in the Anadarko Basin containing producing oil and natural gas wells. The lawsuits seek damages, attorney’s fees, costs and interest, as well as enjoinment from adopting practices or plans which would restrain competition in a similar manner as alleged in the lawsuits.less than $100,000.

Other Matters
In April 2016, a class action lawsuit on behalf of holders of the Company’s 6.875% Senior Notes due 2020 (the 2020 Notes) and 6.125% Senior Notes due 2021 (2021 Notes) was filed in the U.S. District Court for the Southern District of New York relating to the Company’s December 2015 debt exchange, whereby the Company privately exchanged newly issued 8.00% Senior Secured Second Lien Notes due 2022 (Second Lien Notes) for certain outstanding senior unsecured notes and contingent convertible notes. The lawsuit alleges that the Company violated the Trust Indenture Act of 1939 and the implied covenant of good faith and fair dealing by benefiting themselves and a minority of noteholders who are qualified institutional buyers (QIBs). According to the lawsuit, as a result of the Company’s private debt exchange in which only QIBs (and non-U.S. persons under Regulation S) were eligible to participate, the Company unjustly enriched itself at the expense of class members by reducing indebtedness and reducing the value of the 2020 Notes and the 2022 Notes. The lawsuit seeks damages and attorney’s fees, in addition to declaratory relief that the debt exchange and the liens created for the benefit of the Second Lien Notes are null and void and that the debt exchange effectively resulted in a default under the indentures for the 2020 Notes and the 2021 Notes. In June 2016, the lawsuit was transferred to the United States District Court for the Western District of Oklahoma, and in October 2016, the Company filed a motion to dismiss for failure to state a claim. The District Court dismissed the plaintiffs’ claims on February 8, 2017.
Based on management’s current assessment, we are of the opinion that no pending or threatened lawsuit or dispute relating to the Company’sour business operations is likely to have a material adverse effect on itsour future consolidated financial position, results of operations or cash flows. The final resolution of such matters could exceed amounts accrued, however, and actual results could differ materially from management’s estimates.
Environmental Contingencies
The nature of the oil and gas business carries with it certain environmental risks for Chesapeake and its subsidiaries. Chesapeake has implemented various policies, programs, procedures, training and auditing to reduce and mitigate such environmental risks. Chesapeake conducts periodic reviews, on a company-wide basis, to assess changes in our environmental risk profile. Environmental reserves are established for environmental liabilities for which economic losses are probable and reasonably estimable. We manage our exposure to environmental liabilities in acquisitions by using an evaluation process that seeks to identify pre-existing contamination or compliance concerns and address the potential liability. Depending on the extent of an identified environmental concern, Chesapeake may, among other things, exclude a property from the transaction, require the seller to remediate the property to our satisfaction in an acquisition or agree to assume liability for the remediation of the property.
Commitments
Operating Leases
Future operating lease commitments related to other property and equipment are not recorded as obligations in the accompanying consolidated balance sheets. The aggregate undiscounted minimum future lease payments are presented below.
  December 31, 2016
  ($ in millions)
2017 $4
2018 3
2019 2
Total $9
Lease expense for the years ended December 31, 2016, 2015 and 2014, was $5 million, $7 million and $33 million, respectively. Lease expense decreased significantly in 2016 and 2015 compared to 2014 primarily due to the repurchase of all rigs and compressors previously sold under long-term sale-leaseback arrangements.
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Gathering, Processing and Transportation Agreements
We have contractual commitments with midstream service companies and pipeline carriers for future gathering, processing and transportation of oil, natural gas and NGL to move certain of our production to market. Working interest owners and royalty interest owners, where appropriate, will be responsible for their proportionate share of these costs. Commitments related to gathering, processing and transportation agreements are not recorded as obligations in the accompanying consolidated balance sheets; however, they are reflected in our estimates of proved reserves.
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The aggregate undiscounted commitments under our gathering, processing and transportation agreements, excluding any proportionate share of these costsreimbursement from working interest and royalty interest owners, credits for third-party volumes or future costs under cost-of-service agreements, are presented below.below:
  December 31,
2019
  ($ in millions)
2020 $1,136
2021 1,033
2022 913
2023 789
2024 690
2025 – 2034 3,479
Total $8,040
  December 31,
2016
  ($ in millions)
2017 $1,434
2018 1,229
2019 1,178
2020 1,074
2021 970
2022 – 2099 5,225
Total $11,110

In addition, to the above commitments, we have entered into long-term agreements for certain natural gas gathering and related services within specified acreage dedication areas in exchange for cost-of-service based fees redetermined annually, or tiered fees based on volumes delivered relative to scheduled volumes. Future gathering fees may vary with the applicable agreement.
Drilling ContractsService Contract
We have contracts with various drillingthird-party contractors to utilize drillingprovide maintenance and other services at market-based pricing.to generators and natural gas compressors. These commitments are not recorded as obligationsan obligation in the accompanying consolidated balance sheets. As of December 31, 2016, theThe aggregate undiscounted minimum future payments under these drilling service commitmentscontracts are detailed below.
  December 31, 2019
  ($ in millions)
2020 $7
2021 7
2022 2
Total $16

  December 31,
2016
  ($ in millions)
2017 $91
2018 14
Total $105
Pressure Pumping Contracts
We have an agreement for pressure pumping services, which expires in June 2017. The services agreement requires us to utilize, at market-based pricing, the lesser of (i) three pressure pumping crews through June 30, 2017, or (ii) 50% of the total number of all pressure pumping crews working for us in all of our operating regions during the respective year. We are also required to utilize the pressure pumping services for a minimum number of fracture stages as set forth in the agreement. We are entitled to terminate the agreement in certain situations, including if the contractor fails to provide the overall quality of service provided by similar service providers. These commitments are not recorded as obligations in the accompanying consolidated balance sheets. As of December 31, 2016, the aggregate undiscounted minimum future payments under this agreement were approximately $53 million.
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Oil, Natural Gas and NGL Purchase Commitments
We commit to purchase oil, natural gas and NGL from other owners in the properties we operate, including owners associated with our volumetric production payment (VPP) transactions. Production purchases under these arrangements are based on market prices at the time of production, and the purchased oil, natural gas and NGL are resold at market prices. See Volumetric Production Payments in Note 12 for further discussion of our VPP transactions.
Net Acreage Maintenance Commitments
Under the terms of our Utica Shale joint venture agreements with Total S.A., we are required to extend, renew or replace expiring joint leasehold, at our cost, to ensure that the net acreage maintenance level is met as of the December 31, 2017 measurement date.
Other Commitments
As part of our normal course of business, we enter into various agreements providing, or otherwise arranging for, financial or performance assurances to third parties on behalf of our wholly owned guarantor subsidiaries. These agreements may include future payment obligations or commitments regarding operational performance that effectively guarantee our subsidiaries’ future performance.
In connection with acquisitions and divestitures, our purchase and sale agreements generally provide indemnification to the counterparty for liabilities incurred as a result of a breach of a representation or warranty by the indemnifying party and/or other specified matters. These indemnifications generally have a discrete term and are intended to protect the parties against risks that are difficult to predict or cannot be quantified at the time of entering into or consummating a particular transaction. For divestitures of oil and natural gas properties, our purchase and sale agreements may require the return of a portion of the proceeds we receive as a result of uncured title or environmental defects.
Certain of our oil and natural gas properties are burdened by non-operating interests such as royalty and overriding royalty interests, including overriding royalty interests sold through our VPP transactions. As the holder of the working interest from which these interests have been created, we have the responsibility to bear the cost of developing and producing the reserves attributable to these interests. See Volumetric Production Payments in Note 12 for further discussion of our VPP transactions.
While executing our strategic priorities, we have incurred certain cash charges, including contract termination charges, financing extinguishment costs and charges for unused natural gas transportation and gathering capacity. As we continue to focus on our strategic priorities, we may take certain actions that reduce financial leverage and complexity, and we may incur additional cash and noncash charges.
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5.7.Other Liabilities
Other current liabilities as of December 31, 20162019 and 20152018 are detailed below.below:
  December 31,
  2019 2018
  ($ in millions)
Revenues and royalties due others $516
 $687
Accrued drilling and production costs 326
 258
Joint interest prepayments received 52
 73
VPP deferred revenue(a)
 55
 59
Accrued compensation and benefits 156
 202
Other accrued taxes 150
 108
Other 177
 212
Total other current liabilities $1,432
 $1,599
  December 31,
  2016 2015
  ($ in millions)
Revenues and royalties due others $543
 $500
Accrued drilling and production costs 169
 212
Joint interest prepayments received 71
 169
Accrued compensation and benefits 239
 264
Other accrued taxes 32
 37
Bank of New York Mellon legal accrual 440
 439
Minimum gathering volume commitment 
 201
Other 304
 397
Total other current liabilities $1,798
 $2,219

Other long-term liabilities as of December 31, 20162019 and 20152018 are detailed below.below:
  December 31,
  2016 2015
  ($ in millions)
CHK Utica ORRI conveyance obligation(a)
 $160
 $190
Financing obligations 
 29
Unrecognized tax benefits 97
 64
Other 126
 126
Total other long-term liabilities $383
 $409
  December 31,
  2019 2018
  ($ in millions)
VPP deferred revenue(a)
 $9
 $63
Unrecognized tax benefits(b)
 
 53
Other 116
 103
Total other long-term liabilities $125
 $219

(a)
Approximately $43 million and $21 millionAt the inception of our volumetric production payment (VPP) agreements, we (i) removed the proved reserves associated with the VPP, (ii) recognized VPP proceeds as deferred revenue which are being amortized on a unit-of-production basis to other revenue over the term of the total $203 millionVPP, (iii) retained responsibility for the production costs and $211 million obligations are recordedcapital costs related to VPP interests and (iv) ceased recognizing production associated with the VPP volumes. The remaining deferred revenue balance will be recognized in other current liabilitiesrevenues in the consolidated statement of operations through February 2021, assuming the related VPP production volumes are delivered as of December 31, 2016 and 2015, respectively. See Noncontrolling Interests in Note 8 for further discussion of the transaction.
scheduled.
(b)The liability for unrecognized tax benefits was eliminated during the fourth quarter of 2019 as a result of a settlement.
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6.8.Leases
We are a lessee under various agreements for compressors, office space, vehicles and other equipment. As of December 31, 2019, these leases have remaining terms ranging from one month to seven years. Certain of our lease agreements include options to renew the lease, terminate the lease early or purchase the underlying asset at the end of the lease. We determine the lease term at the lease commencement date as the non-cancelable period of the lease, including options to extend or terminate the lease when we are reasonably certain to exercise the option. The company’s vehicles are the only leases with renewal options that we are reasonably certain to exercise. The renewals are reflected in the ROU asset and lease liability balances.
Upon adoption of ASC 842 on January 1, 2019, we recognized a nominal operating lease liability and a nominal related ROU asset related to vehicles we lease.
On February 1, 2019, we acquired WildHorse and, as part of the purchase price allocation, we recognized additional operating lease liabilities of $40 million, a related ROU asset of $38 million, and lease incentives of $2 million related to 2 office space leases, a long-term hydraulic fracturing agreement and other equipment leases. Regarding our long-term hydraulic fracturing agreements, we made a policy election to treat both lease and non-lease components as a single lease component.
In 2018, we sold our wholly owned subsidiary, Midcon Compression, L.L.C., to a third party and subsequently leased back some natural gas compressors for 38 months. The lease is accounted for as a finance lease liability.
The following table presents our ROU assets and lease liabilities as of December 31, 2019.
  Finance Operating
  ($ in millions)
ROU assets $17
 $22
     
Lease liabilities:    
Current lease liabilities $9
 $9
Long-term lease liabilities 9
 16
Total lease liabilities $18
 $25

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Additional information for the Company’s operating and finance leases is presented below:
  Year Ended
December 31, 2019
Lease cost: ($ in millions)
Amortization of ROU assets $8
Interest on lease liability 2
Finance lease cost 10
Operating lease cost 26
Short-term lease cost 112
Total lease cost $148
   
Other information:  
Operating cash outflows from finance lease $2
Operating cash outflows from operating leases $11
Investing cash outflows from operating leases $127
Financing cash outflows from finance lease $8
   
   
Weighted average remaining lease term - finance lease 2.00 years
Weighted average remaining lease term - operating leases 4.65 years
Weighted average discount rate - finance lease 7.50%
Weighted average discount rate - operating leases 4.85%

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Maturity analysis of finance lease liabilities and operating lease liabilities are presented below:
  December 31, 2019
  Finance Lease Operating Leases
  ($ in millions)
2020 $10
 $10
2021 10
 5
2022 
 4
2023 
 2
2024 
 2
Thereafter 
 5
Total lease payments 20
 28
Less imputed interest (2) (3)
Present value of lease liabilities 18
 25
Less current maturities (9) (9)
Present value of lease liabilities, less current maturities $9
 $16

The aggregate undiscounted minimum future lease payments under previous lease accounting standard, ASC 840, are presented below:
  December 31, 2018
  Capital Lease Operating Leases
  ($ in millions)
2019 $10
 $3
2020 10
 1
2021 10
 
Total minimum lease payments $30
 $4

9.Revenue Recognition
The FASB issued Revenue from Contracts with Customers (Topic 606) superseding virtually all existing revenue recognition guidance. We adopted this new standard in the first quarter of 2018 using the modified retrospective approach. We applied the new standard to all contracts that were not completed as of January 1, 2018 and reflected the aggregate effect of all modifications in determining and allocating the transaction price. The cumulative effect of adoption of $8 million did not have a material impact on our consolidated financial statements.
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The following table shows revenue disaggregated by operating area and product type, for the years ended December 31, 2019 and 2018:
  Year Ended December 31, 2019
  Oil Natural Gas NGL Total
  ($ in millions)
Marcellus $
 $856
 $
 $856
Haynesville 
 620
 
 620
Eagle Ford 1,289
 153
 119
 1,561
Brazos Valley 721
 32
 16
 769
Powder River Basin 369
 77
 32
 478
Mid-Continent 164
 44
 25
 233
Revenue from contracts with customers 2,543
 1,782
 192
 4,517
Gains (losses) on oil, natural gas and NGL derivatives (212) 217
 
 5
Oil, natural gas and NGL revenue $2,331
 $1,999
 $192
 $4,522
         
Marketing revenue from contracts with customers $2,473
 $900
 $246
 $3,619
Other marketing revenue 311
 41
 
 352
Losses on marketing derivatives 
 (4) 
 (4)
Marketing revenue $2,784
 $937
 $246
 $3,967
         
  Year Ended December 31, 2018
  Oil Natural Gas NGL Total
  ($ in millions)
Marcellus $
 $924
 $
 $924
Haynesville 2
 836
 
 838
Eagle Ford 1,514
 173
 185
 1,872
Powder River Basin 244
 68
 38
 350
Mid-Continent 246
 84
 55
 385
Utica 195
 401
 224
 820
Revenue from contracts with customers 2,201
 2,486
 502
 5,189
Gains (losses) on oil, natural gas and NGL derivatives 124
 (147) (11) (34)
Oil, natural gas and NGL revenue $2,325
 $2,339
 $491
 $5,155
         
Marketing revenue from contracts with customers $2,740
 $1,194
 $456
 $4,390
Other marketing revenue 457
 222
 
 679
Gains on marketing derivatives 
 7
 
 7
Marketing revenue $3,197
 $1,423
 $456
 $5,076

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Accounts Receivable
Accounts receivable as of December 31, 2019 and 2018 are detailed below:
  December 31,
  2019 2018
  ($ in millions)
Oil, natural gas and NGL sales $737
 $976
Joint interest billings 200
 211
Other 74
 77
Allowance for doubtful accounts (21) (17)
Total accounts receivable, net $990
 $1,247

10.Income Taxes
The components of the income tax provision (benefit) for each of the periods presented below are as follows:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Current      
Federal $
 $
 $(14)
State (26) 
 5
Current Income Taxes (26) 
 (9)
Deferred      
Federal (297) 3
 13
State (8) (13) (2)
Deferred Income Taxes (305) (10) 11
Total $(331) $(10) $2
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Current      
Federal $(14) $
 $
State (5) (36) 47
Current Income Taxes (19) (36) 47
Deferred      
Federal (147) (4,385) 1,115
State (24) (42) (18)
Deferred Income Taxes (171) (4,427) 1,097
Total $(190) $(4,463) $1,144

The effective income tax expense (benefit) differedreported in our consolidated statement of operations is different from the computed "expected" federal income tax expense on earnings before income taxes(benefit) computed using the federal statutory rate for the following reasons:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Income tax expense (benefit) at the federal statutory rate (21%, 21%, 35%) $(134) $45
 $(175)
State income taxes (net of federal income tax benefit) (21) 27
 5
Partial release of valuation allowance due to the WildHorse Merger (314) 
 
Remeasurement of deferred tax assets and liabilities 
 
 931
Change in valuation allowance excluding impact of WildHorse Merger 114
 (97) (771)
Other 24
 15
 12
Total $(331) $(10) $2

  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Income tax expense (benefit) at the federal statutory rate (35%) $(1,606) $(6,684) $1,120
State income taxes (net of federal income tax benefit) (30) (406) 68
Remeasurement of state deferred tax liabilities 
 
 (114)
Change in valuation allowance 1,423
 2,727
 74
Other 23
 (100) (4)
Total $(190) $(4,463) $1,144
In accordance with U.S. GAAP, intraperiodWe applied the guidance in SAB 118 when accounting for the enactment-date effect of the tax allocation provisions require allocationreform legislation commonly known as the Tax Cuts and Jobs Act, which was signed into law on December 22, 2017 (the “Tax Act”). At December 31, 2017, we had not completed our accounting for all of $190 millionthe enactment-date income tax effects of the Tax Act under ASC 740, Income Taxes, for certain items as we were waiting on additional guidance to be issued. At December 31, 2018, we had completed our accounting for all of the enactment-date income tax benefit to continuing operations. This tax benefit was partially offset by $165 millioneffects of the Tax Act. The adjustments made during 2018 were considered immaterial but nevertheless are included as a component of income tax expense and $10 million of tax benefit associated with the equity components of the debt transactions that occurred during the year. See Note 3 for further discussion of our debt transactions. Additionally, $4 million of tax expense was allocated to other comprehensive income. The result is a net tax benefit of $31 million which is primarily due to tax elections that allow for realization of deferred tax assets related to alternative minimum tax (AMT) credits.
We reassessed the realizability of our deferred tax assets given the low commodity prices and recorded a $1.423 billion increase in our valuation allowance(benefit) in our consolidated statement of operations for the year ended December 31, 2016. The increase in2018, which is fully offset with an adjustment to the valuation allowance is to offset the portion of theagainst our net deferred tax benefit at expected rates that we believe is more likely than not to not be realized.asset position.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


We reassessed the realizability of our deferred tax assets and continue to maintain a full valuation allowance against our net deferred tax asset positions for federal and state purposes with the exception of Texas. Texas is currently in a net deferred tax liability position. Of the $206 million net decrease in our valuation allowance, $200 million is reflected as a component of income tax benefit in our consolidated statement of operations for the year ended December 31, 2019. This decrease in the valuation allowance is primarily due to the partial release of the valuation allowance associated with the WildHorse Merger.
Deferred income taxes are provided to reflect temporary differences in the tax basis of net assets for income tax and liabilities and their reported amounts in the financial reporting purposes.statements. The tax-effected temporary differences, NOL carryforwards and tax lossdisallowed business interest carryforwards whichthat comprise our deferred income taxes are as follows:
 Years Ended December 31, December 31,
 2016 2015 2019 2018
 ($ in millions) ($ in millions)
Deferred tax liabilities:        
Property, plant and equipment $(546) $(976)
Volumetric production payments $(223) $(802) (89) (86)
Carrying value of debt 
 (95)
Derivative instruments 
 (300) (14) (56)
Other (62) (71) (5) (7)
Deferred tax liabilities (285) (1,173) (654) (1,220)
        
Deferred tax assets:        
Property, plant and equipment 593
 1,144
Net operating loss carryforwards 2,587
 1,556
 1,971
 2,737
Carrying value of debt 539
 532
 169
 
Disallowed business interest carryforward 25
 194
Asset retirement obligations 98
 174
 50
 40
Investments 275
 260
 83
 111
Derivative instruments 161
 
Accrued liabilities 319
 333
 64
 89
Other 118
 123
 87
 60
Deferred tax assets 4,690
 4,122
 2,449
 3,231
Valuation allowance (4,389) (2,949) (1,805) (2,011)
Net deferred tax assets 301
 1,173
Net deferred tax assets(a)
 $16
 $
Deferred tax assets after valuation allowance 644
 1,220
Net deferred tax liability $(10) $

(a)The net deferred tax assets are included in other long-term assets in the accompanying balance sheets.
As of December 31, 2016, Chesapeake2019, we had federal income tax NOL carryforwards of approximately $6.2$7.582 billion and state NOL carryforwards of approximately $9.5 billion which excludes the NOL carryforwards related to unrecognized tax benefits.$6.844 billion. The associated deferred tax assets related to these federal and state NOL carryforwards were $2.161$1.592 billion and $426$379 million, respectively. The federal NOL carryforwards generated in tax years prior to 2018 expire between 20312033 and 2036.2037. As a result of the Tax Act, the 2018 federal NOL carryforward has no expiration. The value of all of these carryforwards depends on theour ability of Chesapeake to generate future taxable income.
As of December 31, 20162019, and 2015,2018, we had deferred tax assets of $4.690$2.449 billion and $4.122$3.231 billion upon which we had a valuation allowance of $4.389$1.805 billion and $2.949$2.011 billion, respectively. Of the net change in the valuation allowance of $1.440 billion$206 million for both federal and state deferred tax assets, $1.423 billion$200 million is reflected as a component of income tax expensebenefit in the consolidated statement of operations and $17 millionthe remainder is reflected as a componentin components of stockholders’ equity.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


A valuation allowance foragainst deferred tax assets, including net operating losses,NOL carryforwards and disallowed business interest carryforwards, is recognized when it is more likely than not that all or some or allportion of the benefit from the deferred tax assetassets will not be realized. To assess that likelihood, we use estimates and judgment regarding our future taxable income, and we consider the tax consequences in the jurisdiction where such taxable income is generated, to determine whether a valuation allowance is required. Such evidence can include our current financial position, our results of operations, both actual and forecasted, the reversal of deferred tax liabilities, andexisting taxable temporary differences, tax planning strategies, as well as the current and forecasted business economics of our industry. As of December 31, 2016, we believe it is more likely than not that these deferred tax assets will not be realized. Management assesses theall available evidence, both positive and negative, evidence to estimate whether sufficient future taxable income will be generated to permit the use of deferred tax assets. A significant piece of objectiveobjectively verifiable negative evidence evaluated is the cumulative loss incurred over the three-year period endingended December 31, 2016.2019. Such objective negative evidence limits theour ability to consider othervarious forms of subjective positive evidence, such as ourany projections for future growth.income. Accordingly, management has not changed its judgment for the period ended December 31, 2019 with respect to the need for a full valuation allowance against our net deferred tax asset positions for federal and state purposes with the exception of Texas. Texas is currently in a net deferred tax liability position. The amount of the deferred tax assetassets considered realizable however, could be adjusted if estimatesprojections of future taxable income are reduced or increased and/or if objective negative evidence in the form of cumulative losses is no longer present and additional weight ispresent. Should we return to a level of sustained profitability, consideration will need to be given to subjective evidencefuture projections of taxable income to determine whether such projections provide an adequate source of taxable income for the realization of our deferred tax assets, namely federal NOL carryforwards and disallowed business interest carryforwards. If so, then all or a portion of the valuation allowance could possibly be released.
On February 1, 2019, we completed the acquisition of WildHorse. For federal income tax purposes, the transaction qualified as future expected growth.a tax-free merger under Section 368 of the Code and, as a result, we acquired carryover tax basis in WildHorse’s assets and liabilities. We recorded a net deferred tax liability of $314 million as part of the business combination accounting for WildHorse. As a consequence of maintaining a full valuation allowance against our net deferred tax asset positions (federal and state), a partial release of the valuation allowance was recorded as a discrete income tax benefit of $314 million through the consolidated statement of operations in the first quarter of 2019. The net deferred tax liability determined through business combination accounting includes deferred tax liabilities on plant, property and equipment and prepaid compensation totaling $401 million, partially offset by deferred tax assets totaling $87 million relating to federal NOL carryforwards, disallowed business interest carryforwards and certain other deferred tax assets. These carryforwards will be subject to an annual limitation under Section 382 of the Code of approximately $61 million. We determined that no separate valuation allowances were required to be established through business combination accounting against any of the individual deferred tax assets acquired.
TheOur ability of Chesapeake to utilize NOL carryforwards, disallowed business interest carryforwards, and possibly other tax attributes to reduce future federal taxable income and federal income tax is subject to various limitations under Section 382 of the Internal Revenue Code of 1986, as amended.Code. The utilization of these carryforwardsattributes may be limited uponsubject to an annual limitation under Section 382 of the occurrenceCode should transactions involving our equity, including issuances of certain ownership changes, includingour stock or the issuancesale or exerciseexchange of rights to acquire stock, the purchase or sale ofour stock by 5% stockholders, as defined in the Treasury regulations, and the offering of stock by us during any three-year period resultingcertain shareholders, result in an aggregate change of more than 50% in the beneficial ownership of Chesapeake.Ownership Change. (For this purpose, “stock” includes certain preferred stock). Some states impose similar limitations on tax attribute utilization upon experiencing an Ownership Change.
As of December 31, 2016,2019, we do not believe that an ownership changeOwnership Change has occurred that would limitsubject us to an annual limitation on the utilization of our NOL carryforwards. Futurecarryforwards, disallowed business interest carryforwards and other tax attributes. After taking into account the exchanges of our common stock for certain outstanding senior notes that occurred during the quarter ended September 30, 2019 (see Note 5 for further details of the debt exchanges) and the exchange of our common stock for certain Cumulative Convertible Preferred Stock which also occurred during the quarter ended September 30, 2019 (see Note 11 for further details of the stock exchange), our cumulative shift remains under 50% but has increased to a level of over 40%. Therefore, with the exception of the NOL carryforwards and disallowed business interest carryforwards acquired upon the WildHorse Merger, we do not believe we have a limitation on the ability to utilize our carryforwards and other tax attributes under Section 382 of the Code as of December 31, 2019. However, future transactions involving our equity, transactions by Chesapeake or by 5% stockholders (includingincluding relatively small transactions and transactions beyond our control)control, could cause an ownership changeOwnership Change and therefore aan annual limitation on the annual utilization of NOLs.NOL carryforwards, disallowed business interest carryforwards and possibly other tax attributes.
Further, the Proposed Regulations would, if finalized in their current form, significantly reduce our annual limitation should we experience an Ownership Change on or after the date the Proposed Regulations become final and we are in a net unrealized built-in gain position. Among other changes, the Proposed Regulations would, if finalized in their current form, limit the potential increases to the annual limitation amount associated with certain built-in gains existing at the time of an Ownership Change, thereby significantly reducing the ability to utilize tax attributes. As a result, certain
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

NOL carryforwards, disallowed business interest carryforwards and other tax attributes may need to be written off or have a valuation allowance maintained against them possibly leading to a material charge to income tax expense.
Accounting guidance for recognizing and measuring uncertain tax positions prescribesrequires a more likely than not threshold condition thatbe met on a tax position, must meet forbased solely on the technical merits of being sustained, before any of the benefit of the uncertain tax position tocan be recognized in the financial statements. Guidance is also provided regarding de-recognition, classification and disclosure of these uncertain tax positions. As of December 31, 20162019, and 2015,2018, the amount of unrecognized tax benefits related to NOL carryforwards and state tax liabilities associated with uncertain tax positions was $202$74 million and $280$79 million, respectively. Of the 20162019 amount, $76$29 million is related to state tax liabilities whilereceivables not expected to be recovered and the remainder is related to NOL carryforwards. Of the 20152018 amount, $44$32 million is related to state tax liabilities, while$29 million is related to state tax receivables not expected to be recovered and the remainder is related to NOL carryforwards. TheIf recognized, $29 million of the uncertain tax positions identified would not have a materialan effect on the effective tax rate. No material changes to the current uncertain tax positions are expected within the next 12 months. As of both December 31, 2016 and 2015,2019, we had no amounts accrued for interest related to these uncertain tax positions. As of December 31, 2018, we had accrued liabilities of $20 million for interest related to these uncertain tax positions. Chesapeake recognizesinterest. We recognize interest related to uncertain tax positions inas a component of interest expense. Penalties, if any, related to uncertain tax positions would be recorded in other expenses.
A reconciliation of the beginning and ending balances of unrecognized tax benefits is as follows:
  2019 2018 2017
  ($ in millions)
Unrecognized tax benefits at beginning of period $79
 $106
 $202
Additions based on tax positions related to the current year 
 
 
Additions to tax positions of prior years 27
 
 4
Settlements (32) 
 (100)
Expiration of the applicable statute of limitations 
 (23) 
Reductions to tax positions of prior years 
 (4) 
Unrecognized tax benefits at end of period $74
 $79
 $106

  2016 2015 2014
  ($ in millions)
Unrecognized tax benefits at beginning of period $280
 $303
 $644
Additions based on tax positions related to the current year 
 27
 13
Additions to tax positions of prior years 33
 
 
Settlements (111) 
 
Reductions to tax positions of prior years 
 (50) (354)
Unrecognized tax benefits at end of period $202
 $280
 $303
Chesapeake'sOur federal and state income tax returns are routinely auditedsubject to examination by federal and state fiscaltax authorities. TheFederal examination cycles 2010 through 2013 and 2014 through 2015 were settled with the Internal Revenue Service (IRS) is currently auditing ourduring the first and third quarters of 2018, respectively. However, certain of these tax years remain open for purposes of adjusting federal incomeNOL carryforwards upon utilization. Our tax returns for 2010years 2016 through 2015. The 2010 through 2016 years and the 2007 through 2016 years2018 remain open for all purposes of examination by the IRS. With respect to WildHorse, the federal income tax returns for tax years 2016 through 2018 as well as the short period return January 1, 2019 through February 1, 2019, remain open for examination by the IRS. The IRS and other taxinghas notified us that our 2016 income tax return as well as the WildHorse 2017 income tax return will be audited.
In addition, tax years 2016 through 2018 as well as certain earlier years remain open for examination by state tax authorities including the WildHorse state income tax returns for such periods along with the WildHorse 2019 short period return. Currently, several state examinations are in material jurisdictions, respectively.progress of various years. We do not anticipate that the outcome of any state audit will have a significant impact on our financial position or results of operations.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


7.Related Party Transactions
Our equity method investees are considered related parties. Hydraulic fracturing and other services are provided to us in the ordinary course of business by our equity affiliate FTS International, Inc. (FTS). As well operators, we are reimbursed by other working interest owners through the joint interest billing process for their proportionate share of these costs. For the years ended December 31, 2016, 2015 and 2014, our expenditures for hydraulic fracturing services with FTS were $3 million, $65 million and $220 million, respectively.
8.11.Equity
Common Stock
A summary of the changes in our common shares issued for the years ended December 31, 2016, 20152019, 2018 and 20142017 is detailed below.below:
  Years Ended December 31,
  2016 2015 2014
  (in thousands)
Shares issued as of January 1 664,796
 664,944
 666,192
Exchange of convertible notes 55,428
 
 
Exchange of senior notes 53,924
 
 
Conversion of preferred stock 120,186
 
 
Restricted stock issuances (net of forfeitures and cancellations)(a)
 1,945
 (163) (2,529)
Stock option exercises 
 15
 1,281
Shares issued as of December 31 896,279

664,796
 664,944
  Years Ended December 31,
  2019 2018 2017
  (in thousands)
Shares issued as of January 1 913,716
 908,733
 896,279
Common shares issued for WildHorse Merger(a)
 717,376
 
 
Exchange of senior notes(b)
 235,564
 
 
Exchange of convertible notes(b)
 73,389
 
 
Exchange of preferred stock 10,368
 
 9,966
Restricted stock issuances (net of forfeitures and cancellations)(c)
 4,146
 4,983
 2,488
Shares issued as of December 31 1,954,559

913,716
 908,733

(a)The amount
See Note 3 for 2014 reflects forfeitures upon the June 2014 spin-offdiscussion of our oilfield services business.WildHorse Merger.
(b)
See Note 5 for discussion of debt exchanges.
(c)
See Note 12 for discussion of restricted stock.
During the year ended December 31, 2016,2019, our shareholders approved an amendmenta proposal to amend our restated certificate of incorporation to increase the number of authorized shares of our authorized common stock from 1,000,000,0002,000,000,000 shares to 1,500,000,000 shares, par value $0.01 per share.3,000,000,000 shares.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Preferred Stock
Following is a summary of our preferred stock, including the primary conversion terms as of December 31, 2016:2019:
Preferred Stock Series Issue Date 
Liquidation
Preference
per Share
 Holder's Conversion Right Conversion Rate Conversion Price 
Company's
Conversion
Right From
 
Company's Market Conversion Trigger(a)
 Issue Date 
Liquidation
Preference
per Share
 Holder's Conversion Right Conversion Rate Conversion Price 
Company's
Conversion
Right From
 
Company's Market Conversion Trigger(a)
5.75% cumulative
convertible
non-voting
 May and June 2010 $1,000
 Any time 39.6858 $25.1979
 May 17, 2015 $32.7572
 May and June 2010 $1,000
 Any time 39.6858 $25.1979
 May 17, 2015 $32.7573
            
5.75% (series A)
cumulative
convertible
non-voting
 May 2010 $1,000
 Any time 38.3508 $26.0751
 May 17, 2015 $33.8976
 May 2010 $1,000
 Any time 38.3508 $26.0751
 May 17, 2015 $33.8976
            
4.50% cumulative convertible September 2005 $100
 Any time 2.4561 $40.7152
 September 15, 2010 $52.9298
 September 2005 $100
 Any time 2.4561 $40.7152
 September 15, 2010 $52.9298
            
5.00% cumulative convertible (series 2005B) November 2005 $100
 Any time 2.7745 $36.0431
 November 15, 2010 $46.8560
 November 2005 $100
 Any time 2.7745 $36.0431
 November 15, 2010 $46.8560

(a)Convertible at the Company's option if the trading price of the Company's common stock equals or exceeds the trigger price for a specified time period or after the applicable conversion date if there are less than 250,000 shares of 4.50% or 5.00% (Series 2005B) preferred stock outstanding or 25,000 shares of 5.75% or 5.75% (Series A) preferred stock outstanding.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Outstanding shares of our preferred stock for the years ended December 31, 2016, 20152019, 2018 and 20142017 are detailed below.below:
  5.75% 5.75% (Series A) 4.50% 
5.00%
(Series 2005B)  
  (in thousands)
Shares outstanding as of January 1, 2019 770
 463
 2,559
 1,811
Preferred stock exchanges(a)
 
 (40) 
 
Shares outstanding as of December 31, 2019 770
 423
 2,559
 1,811
         
Shares outstanding as of January 1, 2018
and December 31, 2018
 770
 463
 2,559
 1,811
         
Shares outstanding as of January 1, 2017 843
 476
 2,559
 1,962
Preferred stock exchanges(b)
 (73) (13) 
 (151)
Shares outstanding as of December 31, 2017 770
 463
 2,559
 1,811
  5.75% 5.75% (A) 4.50% 
5.00%
(2005B)  
  (in thousands)
Shares outstanding as of January 1, 2016 1,497
 1,100
 2,559
 2,096
Preferred stock conversions/exchanges(a)
 (654) (624) 
 (134)
Shares outstanding as of December 31, 2016 843
 476
 2,559
 1,962
         
Shares outstanding as of January 1, 2015
and December 31, 2015
 1,497
 1,100
 2,559
 2,096
         
Shares outstanding as of January 1, 2014
and December 31, 2014
 1,497
 1,100
 2,559
 2,096

(a)During 2016, holders of our 5.75% Cumulative Convertible Preferred Stock2019, we exchanged or converted 653,872 shares into 59,141,42910,367,950 shares of common stock holdersfor 40,000 shares of our 5.75% (Series A) Cumulative Convertible Preferred Stock exchanged or converted 624,137 shares into 60,032,734 shares of common stock and holders of our 5.00% (Series 2005B) Cumulative Convertible Preferred Stock exchanged or converted 134,000 shares into 1,012,032 shares of common stock.Stock. In connection with the exchanges noted above,exchange, we recognized a loss equal to the excess of the fair value of all common stock issued in exchange for the preferred stock over the fair value of the common stock issuable pursuant to the original terms of the preferred stock. The loss of $428$17 million is reflected as a reduction to net income available to common stockholders for the purpose of calculating earnings per common share.
(b)During 2017, holders of our 5.75% Cumulative Convertible Preferred Stock exchanged 72,600 shares into 7,442,156 shares of common stock, holders of our 5.75% (Series A) Cumulative Convertible Preferred Stock exchanged 12,500 shares into 1,205,923 shares of common stock and holders of our 5.00% (Series 2005B) Cumulative Convertible Preferred Stock exchanged 150,948 shares into 1,317,756 shares of common stock. In connection with the exchanges, we recognized a loss equal to the excess of the fair value of all common stock issued in exchange for the preferred stock over the fair value of the common stock issuable pursuant to the original terms of the preferred stock. The loss of $41 million is reflected as a reduction to net income available to common stockholders for the purpose of calculating earnings per common share.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Dividends
Dividends declared on our preferred stock are reflected as adjustments to retained earnings to the extent a surplus of retained earnings exists after giving effect to the dividends. To the extent retained earnings are insufficient to fund the distributions, payments are reflected in our financial statements as a return of contributed capital rather than earnings and are accounted for as a reduction to paid-in capital.
Dividends on our outstanding preferred stock are payable quarterly. We may pay dividends on our 5.00% Cumulative Convertible Preferred Stock (Series 2005B) and our 4.50% Cumulative Convertible Preferred Stock in cash, common stock or a combination thereof, at our option. Dividends on both series of our 5.75% Cumulative Convertible Non-Voting Preferred Stock are payable only in cash.
In January 2016, we announced that we were suspendingsuspended dividend payments on each series of our outstanding convertible preferred stock. Suspensionstock to provide additional liquidity in the depressed commodity price environment. In the first quarter of the dividends did not constitute an event of default under our revolving credit facility or bond indentures. Our preferred stock dividends for the year ended December 31, 2016 (paid in arrears) are detailed below.
  5.75% 5.75% (A) 4.50% 5.00%
(2005B)  
  ($ in millions)
Dividends in arrears $48
 $27
 $12
 $10
On February 15, 2017, we reinstated the payment of dividends on each series of our outstanding convertible preferred stock and paid our dividends in arrears.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Accumulated Other Comprehensive Income (Loss)
For the years ended December 31, 20162019 and 2015,2018, changes in accumulated other comprehensive income (loss) for cash flow hedges, net of tax, are detailed below.below:
  Years Ended December 31,
  2016 2015
  ($ in millions)
Balance, beginning of period $(99) $(143)
     
Other comprehensive income before reclassifications (13) 20
Amounts reclassified from accumulated other comprehensive income 16
 24
Net other comprehensive income (loss) 3
 44
     
Balance, end of period $(96) $(99)
  Years Ended December 31,
  2019 2018
  ($ in millions)
Balance, as of January 1 $(23) $(57)
Amounts reclassified from accumulated other comprehensive income(a)
 35
 34
Balance, as of December 31 $12
 $(23)
For the years ended December 31, 2016 and 2015, amounts reclassified from accumulated other comprehensive income (loss), net of tax, into the consolidated statements of operations are detailed below.
Details About Accumulated
Other Comprehensive
Income (Loss) Components
 
Affected Line Item
in the Statement
Where Net Income is Presented
 Amounts Reclassified
    ($ in millions)
Year Ended December 31, 2016    
Net losses on cash flow hedges:    
Commodity contracts Oil, natural gas and NGL revenues $16
Foreign currency derivative Gain (loss) on purchases or exchanges of debt 
Total reclassifications for the period, net of tax $16
     
Year Ended December 31, 2015    
Net losses on cash flow hedges:    
Commodity contracts Oil, natural gas and NGL revenues $23
Foreign currency derivative Gain (loss) on purchases or exchanges of debt 1
Total reclassifications for the period, net of tax $24
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

(a)Net losses on cash flow hedges for commodity contracts reclassified from accumulated other comprehensive income (loss), net of tax, to oil, natural gas and NGL revenues in the consolidated statements of operations.
Noncontrolling Interests
Cleveland Tonkawa Financial Transaction. We formed CHK C-T in March 2012 to continue development of a portion of our oil and natural gas assets in our Cleveland and Tonkawa plays. In March 2012, in a private placement, third-party investors contributed $1.25 billion in cash to CHK C-T in exchange for (i) 1.25 million preferred shares, and (ii) our obligation to deliver a 3.75% overriding royalty interest (ORRI) in the existing wells and up to 1,000 future net wells to be drilled on the contributed play leasehold. We initially committed to drill and complete, for the benefit of CHK C-T in the area of mutual interest, a minimum cumulative total of 300 net wells. We ultimately drilled and completed 190 net wells, and the drilling commitment was suspended in January 2015.
During 2015, CHK C-T sold all of its oil and natural gas properties to FourPoint Energy, LLC and immediately used the consideration received, plus other cash it had on hand, to repurchase and cancel all of the outstanding preferred shares in CHK C-T. In connection with the repurchase and cancellation of the CHK C-T preferred stock and related agreements with the CHK C-T investors, we eliminated quarterly preferred dividend payments and all related future drilling and ORRI commitments attributable to CHK C-T. The sale of the oil and natural gas properties was accounted for as a reduction of capitalized costs with no gain or loss recognized.
For 2015 and 2014, income of $50 million and $75 million, respectively, was attributable to the noncontrolling interests of CHK C-T.
Utica Financial Transaction. We formed CHK Utica, L.L.C. (CHK Utica) in October 2011 to develop a portion of our Utica Shale oil and natural gas assets. During November and December 2011, in private placements, third-party investors contributed $1.25 billion in cash to CHK Utica in exchange for (i) 1.25 million preferred shares, and (ii) our obligation to deliver a 3% ORRI in 1,500 net wells to be drilled on certain of our Utica Shale leasehold.
In July 2014, we repurchased all of the outstanding preferred shares of CHK Utica from third-party preferred shareholders for approximately $1.254 billion, or approximately $1,189 per share including accrued dividends. The $447 million difference between the cash paid for the preferred shares and the carrying value of the noncontrolling interest acquired was reflected in retained earnings and as a reduction to net income available to common stockholders for purposes of our EPS computations. Pursuant to the transaction, our obligation to pay quarterly dividends to third-party preferred shareholders was eliminated. In addition, the development agreement was terminated pursuant to the transaction, which eliminated our obligation to drill and complete a minimum number of wells within a specified period for the benefit of CHK Utica. Our repurchase of the outstanding preferred shares in CHK Utica did not affect our obligation to deliver a 3% ORRI in 1,500 net wells on certain of our Utica Shale leasehold.
The CHK Utica investors’ right to receive, proportionately, a 3% ORRI in the first 1,500 net wells drilled on certain of our Utica Shale leasehold is subject to an increase to 4% on net wells earned in any year following a year in which we do not meet our net well commitment under the ORRI obligation, which runs through 2023. However, in no event are we required to deliver to investors more than a total ORRI of 3% in 1,500 net wells. If at any time we hold fewer net acres than would enable us to drill all then-remaining net wells on 150-acre spacing, the investors have the right to require us to repurchase their right to receive ORRIs in the remaining net wells at the then-current fair market value of the remaining ORRIs. We retain the right to repurchase the investors’ right to receive ORRIs in the remaining net wells at the then-current fair market value of the remaining ORRIs once we have drilled a minimum of 1,300 net wells. As of December 31, 2016, we had drilled 508 net wells. The obligation to deliver future ORRIs has been recorded as a liability which will be settled through the future conveyance of the underlying ORRIs to the investors on a net-well basis, at which time the associated liability will be reversed and the sale of the ORRIs reflected as an adjustment to the capitalized cost of our oil and natural gas properties. We met our ORRI conveyance commitments as of December 31, 2014 and 2015 but did not meet our commitment in 2016. The ORRI will increase to 4% for wells drilled in 2017.
In 2014, income of approximately $43 million was attributable to the noncontrolling interests of CHK Utica.
Chesapeake Granite Wash Trust. In November 2011, We own 23,750,000 common units in the Chesapeake Granite Wash Trust (the Trust) sold 23,000,000 common units representing beneficial interests in the Trust at a price of $19.00 per common unit in its initial public offering. The common units are listed on the New York Stock Exchange and trade under the symbol “CHKR”. We own 12,062,500 common units and 11,687,500 subordinated units, which in the aggregate represent an approximate 51% beneficial interest in the Trust. The Trust has a total of 46,750,000 units outstanding.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The subordinated units we hold in the Trust are entitled to receive pro rata distributions from the Trust each quarter if and to the extent there is sufficient cash to provide a cash distribution on the common units that is not less than the applicable subordination threshold for the quarter. If there is not sufficient cash to fund a distribution on all of the Trust units, the distribution to be made with respect to the subordinated units is reduced or eliminated for the quarter in order to make a distribution, to the extent possible, of up to the subordination threshold amount on the common units. The distribution made with respect to the subordinated units to Chesapeake was either reduced or eliminated for each of the most recent 18 quarters. In exchange for agreeing to subordinate a portion of our Trust units, and in order to provide additional financial incentive to us to perform operations on the underlying properties in an efficient and cost-effective manner, Chesapeake is entitled to receive incentive distributions equal to 50% of the amount by which the cash available for distribution on the Trust units in any quarter exceeds the applicable incentive threshold for the quarter. The remaining 50% of cash available for distribution in excess of the applicable incentive threshold is to be paid to Trust unitholders, including Chesapeake, on a pro rata basis. Through December 31, 2016, no incentive distributions had been made. At the end of the 2017 second quarter, the subordinated units will automatically convert into common units on a one-for-one basis and our right to receive incentive distributions will terminate. After this time, the common units will no longer have the protection of the subordination threshold, and all Trust unitholders will share in the Trust’s distributions on a pro rata basis.
For the years ended December 31, 2016, 2015 and 2014, the Trust declared and paid the following distributions:
Production Period Distribution Date Cash Distribution
per
Common Unit
 Cash Distribution
per
Subordinated Unit
June 2016 – August 2016 December 1, 2016 $0.0857
 $
March 2016 – May 2016 August 29, 2016 $0.0734
 $
December 2015 – February 2016 May 31, 2016 $0.0403
 $
September 2015 – November 2015 March 1, 2016 $0.2195
 $
June 2015 – August 2015 November 30, 2015 $0.3232
 $
March 2015 – May 2015 August 31, 2015 $0.3579
 $
December 2014 – February 2015 June 1, 2015 $0.3899
 $
September 2014 – November 2014 March 2, 2015 $0.4496
 $
June 2014 – August 2014 December 1, 2014 $0.5079
 $
March 2014 – May 2014 August 29, 2014 $0.5796
 $
December 2013 – February 2014 May 30, 2014 $0.6454
 $
September 2013 – November 2013 March 3, 2014 $0.6624
 $
interest. We have determined that the Trust is a variable interest entity (VIE)VIE and that Chesapeake iswe are the primary beneficiary. As a result, the Trust is included in our consolidated financial statements. As of December 31, 20162019, and 2015,2018, we had $257$37 million and $259$41 million, respectively, of noncontrolling interests on our consolidated balance sheets attributable to the Trust. There was nominal net income attributable to the Trust’s noncontrolling interest in 2019. Net income attributable to the Trust’s noncontrolling interest is presented in our consolidated statements of operations aswas $2 million and $3 million for the yearyears ended December 31, 2016,2018 and 2017, respectively.
The Trust’s legal existence is separate from Chesapeake and our other consolidated subsidiaries, and the Trust is not a nominal amountguarantor of any of Chesapeake’s debt. The creditors or beneficial holders of the Trust have no recourse to the general credit of Chesapeake. We have presented parenthetically on the face of the consolidated balance sheets the assets of the Trust that can be used only to settle obligations of the Trust and the liabilities of the Trust for which creditors do not have recourse to the year ended December 2015 and $24 million for the year ended December 31, 2014. See Note 15 for further discussiongeneral credit of VIEs.Chesapeake.
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

9.12.Share-Based Compensation
Chesapeake’sOur share-based compensation program consists of restricted stock, stock options, and performance share units (PSUs) and cash restricted stock units (CRSUs) granted to employees and restricted stock granted to non-employee directors under our long term incentive plans.Long Term Incentive Plan. The restricted stock and stock options are equity-classified awards and the PSUs and CRSUs are liability-classified awards. In connection with the spin-off of our oilfield services business on June 30, 2014, and pursuant to the terms of our share-based compensation plans and the employee matters agreement between Chesapeake and Seventy Seven Energy Inc. (SSE), unexercised stock options and unvested restricted stock were modified as of the date of the spin-off. The modifications were designed to ensure that the value of each award of unexercised stock options and unvested restricted stock did not change as a result of the spin-off. The number of stock options and number of shares of restricted stock reported below have been adjusted to reflect modifications on the spin-off date.
Share-Based Compensation Plans
2014 Long Term Incentive Plan. Our 2014 Long Term Incentive Plan (2014 LTIP), which is administered by the Compensation Committee of our Board of Directors, became effective on June 13, 2014 after it was approved by shareholders at our 2014 Annual Meeting. The 2014 LTIP replaced our Amended and Restated Long Term Incentive Plan which was adopted in 2005. The 2014 LTIP provides for up to 71,600,000 shares of common stock that may be issued as long-term incentive compensation to our employees and non-employee directors; provided, however, that the 2014 LTIP uses a fungible share pool under which (i) each share issued pursuant to a stock option or stock appreciation right (SAR) reduces the number of shares available under the 2014 LTIP by 1.0 share; (ii) each share issued pursuant to awards other than options and SARs reduces the number of shares available by 2.12 shares; (iii) if any awards of restricted stock under the 2014 LTIP, or its predecessor plan, are forfeited, expire, are settled for cash, or are tendered by the participant or withholdwithheld by us to satisfy any tax withholding obligation, then the shares subject to the award may be used again for awards; and (iv) PSUs and other performance awards which are payable solely in cash are not counted against the aggregate number of shares issuable. In addition, the 2014 LTIP prohibits the reuse of shares withheld or delivered to satisfy the exercise price of, or to satisfy tax withholding requirements for, an option or SAR. The 2014 LTIP also prohibits “net share counting” upon the exercise of options or SARs.
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The 2014 LTIP authorizes the issuance of the following types of awards: (i) nonqualified and incentive stock options; (ii) SARs; (iii) restricted stock; (iv) performance awards, including PSUs; and (v) other stock-based awards. For both stock options and SARs, the exercise price may not be less than the fair market value of our common stock on the date of grant and the maximum exercise period may not exceed ten years from the date of grant. Awards granted under the plan vest at specified dates and/or upon the satisfaction of certain performance or other criteria, as determined by the Compensation Committee. As of December 31, 2016, 61,856,0652019, 29,865,514 shares of common stock remained issuable under the 2014 LTIP.
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Equity-Classified Awards
Restricted Stock. We grant restricted stock units to employees and non-employee directors. Prior to 2014, we also granted restricted stock awards as equity compensation. We refer to both types of awards as restricted stock. A summary of the changes in unvested restricted stock during 2016, 20152019, 2018 and 20142017 is presented below.below:
  
Shares of
Unvested
Restricted Stock
 
Weighted Average
Grant Date
Fair Value
  (in thousands)  
Unvested restricted stock as of January 1, 2019 11,858
 $4.43
Granted 5,908
 $2.65
Vested (5,944) $4.38
Forfeited (1,380) $3.72
Unvested restricted stock as of December 31, 2019 10,442
 $3.55
     
Unvested restricted stock as of January 1, 2018 13,178
 $6.37
Granted 6,067
 $3.73
Vested (5,808) $7.67
Forfeited (1,579) $6.02
Unvested restricted stock as of December 31, 2018 11,858
 $4.43
     
Unvested restricted stock as of January 1, 2017 9,092
 $11.39
Granted 9,872
 $5.40
Vested (4,573) $13.73
Forfeited (1,213) $8.32
Unvested restricted stock as of December 31, 2017 13,178
 $6.37
  
Shares of
Unvested
Restricted Stock
 
Weighted Average
Grant Date
Fair Value
  (in thousands)  
Unvested restricted stock as of January 1, 2016 10,455
 $17.31
Granted 4,604
 $4.58
Vested (4,692) $17.23
Forfeited (1,275) $13.91
Unvested restricted stock as of December 31, 2016 9,092
 $11.39
     
Unvested restricted stock as of January 1, 2015 10,091
 $21.20
Granted 7,095
 $13.90
Vested (4,157) $21.70
Forfeited (2,574) $16.98
Unvested restricted stock as of December 31, 2015 10,455
 $17.31
     
Unvested restricted stock as of January 1, 2014 13,400
 $23.38
Granted 5,049
 $25.92
Vested (4,803) $27.17
Forfeited (3,555) $28.09
Unvested restricted stock as of December 31, 2014 10,091
 $21.20

The aggregate intrinsic value of restricted stock that vested during 20162019 was approximately $21$15 million based on the stock price at the time of vesting.
As of December 31, 20162019, there was approximately $50$19 million of total unrecognized compensation expense related to unvested restricted stock. The expense is expected to be recognized over a weighted average period of approximately 1.51.92 years.
Stock Options. In 2016, 20152019, 2018 and 2014,2017, we granted members of senior management stock options that vest ratably over a three-year period. Each stock option award has an exercise price equal to the closing price of the Company’sour common stock on the grant date. Outstanding options expire seven years to ten years from the date of grant.
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

We utilize the Black-Scholes option pricing model to measure the fair value of stock options. The expected life of an option is determined using the simplified method. Volatility assumptions are estimated based on anthe average of historical volatility of Chesapeake stock over the expected life of an option. The risk-free interest rate is based on the U.S. Treasury rate in effect at the time of the grant over the expected life of the option. The dividend yield is based on an annual dividend yield, taking into account the Company'sour dividend policy, over the expected life of the option. The CompanyWe used the following weighted average assumptions to estimate the grant date fair value of the stock options granted in 2016.2019:
Expected option life – years 6.0

Volatility 46.0765.61%
Risk-free interest rate 1.702.47%
Dividend yield %
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


The following table provides information related to stock option activity for 2016, 20152019, 2018 and 2014.2017: 
 
Number of
Shares
Underlying  
Options
 
Weighted
Average
Exercise
Price
Per Share
 
Weighted  
Average
Contract
Life in
Years
 
Aggregate  
Intrinsic
Value(a)
 
Number of
Shares
Underlying  
Options
 
Weighted
Average
Exercise Price Per Share
 
Weighted  
Average
Contract Life in Years
 
Aggregate  
Intrinsic
Value(a)
 (in thousands)   ($ in millions) (in thousands)   ($ in millions)
Outstanding as of January 1, 2016 5,377
 $19.37
 5.80 $
Outstanding as of January 1, 2019 18,096
 $7.20
 7.15 $
Granted 4,932
 $3.71
   1,000
 $2.97
  
Exercised 
 $
 $
 
 $
 $
Expired (771) $19.46
   (553) $6.36
  
Forfeited (945) $5.66
   (609) $3.97
  
Outstanding as of December 31, 2016 8,593
 $11.88
 7.22 $14
Outstanding as of December 31, 2019 17,934
 $7.10
 5.70 $
Exercisable as of December 31, 2019 13,092
 $8.28
 4.86 $
            
Exercisable as of December 31, 2016 2,844
 $19.60
 5.53 $
      
Outstanding as of January 1, 2015 4,599
 $19.55
 7.03 $5
Outstanding as of January 1, 2018 16,285
 $8.25
 7.73 $1
Granted 1,208
 $18.37
   3,611
 $3.01
  
Exercised (14) $18.13
 $
 
 $
 $
Expired (416) $18.46
   (602) $13.83
  
Forfeited 
 $
   (1,198) $5.45
  
Outstanding as of December 31, 2015 5,377
 $19.37
 5.80 $
Outstanding as of December 31, 2018 18,096
 $7.20
 7.15 $
Exercisable as of December 31, 2018 8,250
 $10.73
 5.73 $
            
Exercisable as of December 31, 2015 2,045
 $19.61
 5.07 $
      
Outstanding as of January 1, 2014 5,268
 $19.28
 6.66 $41
Outstanding as of January 1, 2017 8,593
 $11.88
 7.22 $14
Granted 994
 $24.43
   9,226
 $5.45
  
Exercised (1,322) $18.71
 $11
 
 $
 $
Expired (28) $18.97
   (435) $18.50
  
Forfeited (313) $21.05
   (1,099) $9.12
  
Outstanding as of December 31, 2014 4,599
 $19.55
 7.03 $5
      
Exercisable as of December 31, 2014 1,304
 $18.71
 5.70 $1
Outstanding as of December 31, 2017 16,285
 $8.25
 7.73 $1
Exercisable as of December 31, 2017 4,474
 $15.15
 5.26 $

(a)The intrinsic value of a stock option is the amount by which the current market value or the market value upon exercise of the underlying stock exceeds the exercise price of the option.
As of December 31, 20162019, there was $7$5 million of total unrecognized compensation expense related to stock options. The expense is expected to be recognized over a weighted average period of approximately 1.70 years.1.23 years, net of actual forfeitures.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


Restricted Stock and Stock Option Compensation. We recognized the following compensation costs, net of actual forfeitures, related to restricted stock and stock options for the years ended December 31, 2016, 20152019, 2018 and 2014.2017:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
General and administrative expenses $26
 $31
 $43
Oil and natural gas properties 2
 2
 5
Oil, natural gas and NGL production expenses 3
 5
 12
Exploration expenses 1
 1
 1
Total restricted stock and stock option compensation $32
 $39
 $61
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
General and administrative expenses $38
 $43
 $46
Oil and natural gas properties 16
 23
 29
Oil, natural gas and NGL production expenses 13
 18
 18
Marketing, gathering and compression expenses 1
 5
 6
Oilfield services expenses 
 
 5
Total $68
 $89
 $104

Liability-Classified Awards
Performance Share Units. We have granted PSUs to senior management that vest ratably over a three-year termperformance period and are settled in cash on the third anniversary of the awards.cash. The ultimate amount earned is based on achievement of performance metrics established by the Compensation Committee of the Board of Directors, which include total shareholder return (TSR) and, for certain of the awards, operational performance goals such as finding and development costs and production levels.
For PSUs granted in 2016, the TSR component can range from 0% to 100% and the operational component can range from 0% to 100%, resulting in a maximum payout of 200%. For PSUs granted in 2015, the TSR component can range from 0% to 100%, and each of the two operational components can range from 0% to 50% resulting in a maximum total payout of 200%. For PSUs granted in 2014, the TSR component can range from 0% to 200%, with no operational components.Directors. Compensation expense associated with PSU grantsawards is recognized over the service period based on the graded-vesting method. The value of the PSU awards at the end of each reporting period is dependent upon the Company’sour estimates of the underlying performance measures.
For PSUs granted in 2017, performance metrics include a total shareholder return (TSR) component, which can range from 0% to 100% and an operational performance component based on finding and development costs, which can range from 0% to 100%, resulting in a maximum payout of 200%. The Company utilized a Monte Carlo simulationpayout percentage for the 2017 PSU awards is capped at 100% if our absolute TSR is less than zero. The PSUs are settled in cash on the third anniversary of the awards. The performance measureperiod for the 2017 awards ended on December 31, 2019.
For PSUs granted in 2018 and 2019, performance metrics include an operational performance component based on a ratio of cumulative earnings before interest expense, income taxes, and depreciation, depletion and amortization expense (EBITDA) to capital expenditures, for which payout can range from 0% to 200%. For the following assumptions2019 award, EBITDA and capital expenditures will be adjusted for changes resulting from our conversion from the full cost method of accounting to the successful efforts method. The vested PSUs are settled in cash on each of the 3 annual vesting dates. We used the closing price of our common stock on the grant date to determine the grant date fair value of the PSUs. The payout percentage for all PSU grantsliability will be adjusted quarterly, based on changes in our stock price and expected satisfaction of performance metrics, through the end of each performance period.
Cash Restricted Stock Units. In 2018, we granted CRSUs to employees that vest straight-line over a three-year period and are settled in cash on each of the 3 annual vesting dates. The ultimate amount earned is capped at 100% ifbased on the Company's absolute TSR is less than zero.
Volatility91.19%
Risk-free interest rate1.20%
Dividend yield for value of awards%
The following table presents a summaryclosing price of our 2016, 2015 and 2014 PSU awards.
    
Grant Date
Fair Value
 December 31, 2016
  Units  Fair Value Vested Liability
    ($ in millions)    
2016 Awards:        
Payable 2019 2,348,893
 $10
 $20
 $12
2015 Awards:        
Payable 2018 629,694
 $13
 $4
 $3
2014 Awards:        
Payable 2017 561,215
 $16
 $
 $
common stock on each of the vesting dates. We used the closing price of our common stock on the grant date to determine the grant date fair value of the CRSUs. The CRSU liability will be adjusted quarterly, based on changes in our stock price, through the end of the vesting period.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


PSU Compensation.The following table presents a summary of our liability-classified awards:
    
Grant Date
Fair Value
 December 31, 2019
  Units  Fair Value Vested Liability
    ($ in millions) ($ in millions)
2019 PSU Awards:        
Payable 2020, 2021 and 2022 4,674,503
 $14
 $4
 $
2018 PSU Awards:        
Payable 2020 and 2021 2,340,157
 $7
 $2
 $
2017 PSU Awards:        
Payable 2020 1,174,973
 $8
 $1
 $
2018 CRSU Awards:        
Payable 2020 and 2021 8,233,207
 $25
 $7
 $

We recognized the following compensation costs (credits), net of actual forfeitures, related to PSUsour liability-classified awards for the years ended December 31, 2016, 20152019, 2018 and 2016.2017:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
General and administrative expenses $5
 $9
 $(4)
Oil and natural gas properties 1
 1
 
Oil, natural gas and NGL production expenses 3
 2
 
Restructuring and other termination costs 1
 
 
Total liability-classified awards compensation $10
 $12
 $(4)
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
General and administrative expenses $14
 $(19) $(4)
Restructuring and other termination costs 1
 (19) (19)
Marketing, gathering and compression 
 (1) 
Oil and natural gas properties 
 (2) 3
Total $15
 $(41) $(20)
Effect of the Spin-off on Share-Based Compensation
The employee matters agreement entered into in connection with the June 2014 spin-off of our oilfield services business (see Note 13) addresses the treatment of holders of Chesapeake stock options, restricted stock and PSUs that were impacted by the spin-off. Unvested equity-based compensation awards held by Chesapeake Oilfield Operating, L.L.C. (COO) employees were canceled and replaced with new awards of SSE, and unvested equity-based compensation awards held by Chesapeake employees were adjusted to account for the spin-off, each as of the spin-off date. The employee matters agreement provides that employees of SSE ceased to participate in benefit plans sponsored or maintained by Chesapeake as of the spin-off date. In addition, the employee matters agreement provides that as of the spin-off date, each party is responsible for the compensation of its current employees and for all liabilities relating to its former employees, as determined by their respective employer on the date of termination.
10.13.     Employee Benefit Plans
Our qualified 401(k) profit sharing plan (401(k) Plan) is the Chesapeake Energy Corporation Savings and Incentive Stock Bonus Plan, which is open to employees of Chesapeake and all our subsidiaries. Eligible employees may elect to defer compensation through voluntary contributions to their 401(k) Plan accounts, subject to plan limits and those set by the IRS. Through December 31, 2014, Chesapeake matchedWe match employee contributions dollar for dollar (subject to a maximum contribution of 15% of an employee's base salary and performance bonus) with Chesapeake common stock purchased in the open market. Beginning January 1, 2015, Chesapeake matched employee contributions in cash. The CompanyWe contributed $39$29 million, $52$31 million and $61$35 million to the 401(k) Plan in 2016, 20152019, 2018 and 2014,2017, respectively.
ChesapeakeWe also maintainsmaintained a nonqualified deferred compensation plan (DC Plan). which we terminated in January 2020 in accordance with its terms. To be eligible to participate in the DC Plan, an active employee must have had a base salary of at least $150,000, havehad a hire date on or before December 1, immediately preceding the year in which the employee iswas able to participate, or be designated as eligible to participate. Only the top 10% of Company wage earners are eligible to participate. Additionally, the employee had to have made the maximum contribution allowable under the 401(k) Plan. Chesapeake matchesWe matched 100% of employee contributions up to 15% of base salary and performance bonus in the aggregate for the DC Plan with Chesapeake common stock, and an employee who iswas at least age 55 may electhave elected for the matching contributions to be made in any one of the DC Plan’s investment options. The maximum compensation that can becould have been deferred by employees under all Companyof our deferred compensation plans, including the Chesapeake 401(k) Plan, iswas a total of 75% of base salary and 100%75% of performance bonus. The Company contributed $9 million, $11 million and $7 million to the DC Plan during 2016, 2015 and 2014, respectively, to fund the match. Beginning in 2016, the DC Plan was no longer a spillover plan from the 401(k) Plan. The participant may choosechose separate deferral election percentages for both plans. We contributed $7 million, $7 million and $8 million to the DC Plan during 2019, 2018 and 2017, respectively, to fund the match. The deferred compensation company match of 15% hashad a five-year vesting schedule based on years of service. Any participant who iswas active on December 31 of the plan year will receivereceived the deferred compensation company match which will bewas awarded on an annual basis.
Any assets placed in trust by Chesapeake to fund future obligations of the Company's nonqualified deferred compensation plan is subject to the claims of creditors in the event of insolvency or bankruptcy, and participants are general creditors of the Company as to their deferred compensation in the plan.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


11.14.Derivative and Hedging Activities
Chesapeake usesWe use derivative instruments to secure attractive pricing and margins on its share of expected production, to reduce itsour exposure to fluctuations in future commodity prices and to protect itsour expected operating cash flow against significant market movements or volatility. Chesapeake also uses derivative instruments to mitigate a portion of its exposure to foreign currency exchange rate fluctuations. All of our commodityoil, natural gas and NGL derivative instruments are net settled based on the difference between the fixed-price payment and the floating-price payment, resulting in a net amount due to or from the counterparty. NaN of our open oil, natural gas and NGL derivative instruments were designated for hedge accounting as of December 31, 2019 and 2018.
Oil, Natural Gas and NGL Derivatives
As of December 31, 20162019, and 2015,2018, our oil, natural gas and NGL derivative instruments consisted of the following types of instruments:
Swaps: We receive a fixed price and pay a floating market price to the counterparty for the hedged commodity. In exchange for higher fixed prices on certain of our swap trades, we may sell call options and call swaptions.
Options: We sell, and occasionally buy, call options in exchange for a premium. At the time of settlement, if the market price exceeds the fixed price of the call option, we pay the counterparty the excess on sold call options and we receive the excess on bought call options. If the market price settles below the fixed price of the call option, no payment is due from either party.
Call Swaptions: We sell call swaptions to counterparties in exchange for a premium. Swaptions allow the counterparty, on a specific date, to extend an existing fixed-price swap for a certain period of time or to increase the notional volumes of an existing fixed-price swap.
Collars: These instruments contain a fixed floor price (put) and ceiling price (call). If the market price exceeds the call strike price or falls below the put strike price, we receive the fixed price and pay the market price. If the market price is between the put and the call strike prices, no payments are due from either party. Three-way collars include the sale by us of an additional put option in exchange for a more favorable strike price on the call option. This eliminates the counterparty’s downside exposure below the second put option strike price.
Basis Protection Swaps: These instruments are arrangements that guarantee a fixed price differential to NYMEX from a specified delivery point. We receive the fixed price differential and pay the floating market price differential to the counterparty for the hedged commodity.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
Swaps: Chesapeake receives a fixed price and pays a floating market price to the counterparty for the hedged commodity. In exchange for higher fixed prices on certain of our swap trades, we granted options that allow the counterparty to double the notional amount.NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)
Options: Chesapeake sells, and occasionally buys, call options in exchange for a premium. At the time of settlement, if the market price exceeds the fixed price of the call option, Chesapeake pays the counterparty the excess on sold call options and Chesapeake receives the excess on bought call options. If the market price settles below the fixed price of the call option, no payment is due from either party.

Collars: These instruments contain a fixed floor price (put) and ceiling price (call). If the market price exceeds the call strike price or falls below the put strike price, Chesapeake receives the fixed price and pays the market price. If the market price is between the put and the call strike prices, no payments are due from either party.
Basis Protection Swaps: These instruments are arrangements that guarantee a fixed price differential to NYMEX from a specified delivery point. Chesapeake receives the fixed price differential and pays the floating market price differential to the counterparty for the hedged commodity.
The estimated fair values of our oil, natural gas and NGL derivative instrument assets (liabilities) as of December 31, 20162019 and 20152018 are provided below. below: 
  December 31, 2019 December 31, 2018
  Notional Volume Fair Value Notional Volume Fair Value
    ($ in millions)     ($ in millions)  
Oil (mmbbl):        
Fixed-price swaps 24
 $(7) 12
 $157
Collars 2
 14
 8
 98
Basis protection swaps 8
 (2) 7
 5
Total oil 34
 5
 27
 260
Natural gas (bcf):        
Fixed-price swaps 265
 125
 623
 26
Three-way collars 
 
 88
 1
Collars 
 
 55
 (3)
Call options 22
 
 44
 
Call swaptions 29
 (2) 106
 (9)
Basis protection swaps 30
 2
 50
 
Total natural gas 346
 125
 966
 15
Contingent Consideration:        
Utica divestiture   
   7
Total estimated fair value   $130
   $282

  December 31, 2016 December 31, 2015
  Volume Fair Value Volume Fair Value
    ($ in millions)     ($ in millions)  
Oil (mmbbl):        
Fixed-price swaps 23
 $(140) 14
 $144
Call options 5
 (1) 19
 (7)
Total oil 28
 (141) 33
 137
         
Natural gas (tbtu):        
Fixed-price swaps 719
 (349) 500
 229
Collars 60
 (9) 
 
Call options 114
 
 295
 (99)
Basis protection swaps 31
 (5) 57
 
Total natural gas 924
 (363) 852
 130
         
NGL (mmgal):        
Fixed-price swaps 53
 
 
 
         
Total estimated fair value   $(504)   $267
We have terminated certain commodity derivative contracts that were previously designated as cash flow hedges for which the hedged production is still expectedoriginal contract months are yet to occur. See further discussion below under Effect of Derivative Instruments – Accumulated Other Comprehensive Income (Loss).
TABLE OF CONTENTSContingent Consideration Arrangements
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Interest Rate Derivatives
AsIn 2018, we sold our Utica Shale position to Encino. The agreement includes additional contingent payments to us of up to $100 million comprised of $50 million in consideration in each case if, on or prior to December 31, 2016 and 2015,2019, there were no interest rate derivatives outstanding.
We have terminated fair value hedges related to certainis a period of our senior notes. Gains and losses related to these terminated hedges will be amortized as an adjustment to interest expense overtwenty (20) trading days out of a period of thirty (30) consecutive trading days where (i) the remaining termaverage of the related senior notes. OverNYMEX natural gas strip prices for the next four years, we will recognize $3 million in net gains relatedmonths comprising the year 2022 equals or exceeds $3.00/mmbtu as calculated pursuant to these transactions.the purchase agreement, and (ii) the average of the NYMEX natural gas strip price for the months comprising the year 2023 equals or exceeds $3.25/mmbtu as calculated pursuant to the purchase agreement. The contingent consideration expired on December 31, 2019 with no value attributed to the arrangement. See Note 3 for further details regarding the transaction.
Foreign Currency Derivatives
We are party to cross currency swaps to mitigate our exposure to foreign currency exchange rate fluctuations. During 2016, in connection with debt repurchases, we retired €56 million in aggregate principal amount of2017, both our 6.25% Euro-denominated Senior Notes due 2017 and we simultaneously unwound the cross currency swaps for the same principal amount at a cost of $13 million. Under the terms of the remaining cross currency swaps, on each semi-annual interest payment date, the counterparties pay us €8 million and we pay the counterparties $12 million, which yields an annual dollar-equivalent interest rate of 7.491%.matured. Upon maturity of the notes, the counterparties will paypaid us €246 million and we will paypaid the counterparties $327 million. The terms of the cross currency swaps were based on the dollar/euro exchange rate on the issuance date of $1.3325 to €1.00. The swaps arewere designated as cash flow hedges and, because they arewere entirely effective in having eliminated any potential variability in our expected cash flows related to changes in foreign exchange rates, changes in their fair value dodid not impact earnings. The fair values of the cross currency swaps are recorded on the consolidated balance sheets as liabilities of $73 million and $52 million as of December 31, 2016 and 2015, respectively. The euro-denominated debt in long-term debt has been adjusted to $258 million as of December 31, 2016, using an exchange rate of $1.0517 to €1.00.
Supply Contract Derivatives

From time to time and in the normal course of business, our marketing subsidiary enters into supply contracts under which we commit to deliver a predetermined quantity of natural gas to certain counterparties in an attempt to earn attractive margins. Under certain contracts, we receive a sales price that is based on the price of a product other than natural gas, thereby creating an embedded derivative requiring bifurcation. In one of these supply contracts, we were committed to supply a minimum of 90 bbtu per day of natural gas through March 2025. In 2016, we sold the long-term natural gas supply contract to a third party for cash proceeds of $146 million, which is included in marketing, gathering and compression revenues as a realized gain. Concurrent with this sale, we reversed the cumulative unrealized gains associated with this supply contract of $280 million.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


Effect of Derivative Instruments – Consolidated Balance Sheets
The following table presents the fair value and location of each classification of derivative instrument included in the consolidated balance sheets as of December 31, 20162019, and 20152018 on a gross basis and after same-counterparty netting:
Balance Sheet Classification 
Gross
Fair Value
 
Amounts Netted
in the
Consolidated
Balance Sheets
 
Net Fair Value Presented
in Consolidated
Balance Sheet
 
Gross
Fair Value
 
Amounts Netted
in the
Consolidated
Balance Sheets
 
Net Fair Value
Presented in the
Consolidated
Balance Sheets
 ($ in millions) ($ in millions)
As of December 31, 2016      
As of December 31, 2019      
Commodity Contracts:            
Short-term derivative asset $1
 $(1) $
 $174
 $(40) $134
Short-term derivative liability (490) 1
 (489) (42) 40
 (2)
Long-term derivative liability (15) 
 (15) (2) 
 (2)
Total commodity contracts (504) 
 (504)
Foreign Currency Contracts:(a)
      
Short-term derivative liability (73) 
 (73)
Total foreign currency contracts (73) 
 (73)
Total derivatives $(577) $
 $(577) $130
 $
 $130
            
As of December 31, 2015      
As of December 31, 2018      
Commodity Contracts:            
Short-term derivative asset $381
 $(66) $315
 $306
 $(104) $202
Long-term derivative asset 117
 (41) 76
Short-term derivative liability (106) 66
 (40) (107) 104
 (3)
Long-term derivative liability (8) 
 (8) (41) 41
 
Total commodity contracts 267
 
 267
Foreign Currency Contracts:(a)
      
Long-term derivative liability (52) 
 (52)
Total foreign currency contracts (52) 
 (52)
Supply Contracts:      
Contingent Consideration:      
Short-term derivative asset 51
 
 51
 7
 
 7
Long-term derivative asset 246
 
 246
Total supply contracts 297
 
 297
Total derivatives $512
 $
 $512
 $282
 $
 $282

(a)Designated as cash flow hedging instruments.
As of December 31, 20162019 and 2015,2018, we did not0t have any cash collateral balances for these derivatives.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


Effect of Derivative Instruments – Consolidated Statements of Operations
The components of oil, natural gas and NGL revenues for the years ended December 31, 2016, 20152019, 2018 and 20142017 are presented below. below:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Oil, natural gas and NGL revenues $4,517
 $5,189
 $4,574
Gains on undesignated oil, natural gas and NGL derivatives 40
 
 445
Losses on terminated cash flow hedges (35) (34) (34)
Total oil, natural gas and NGL revenues $4,522
 $5,155
 $4,985
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Oil, natural gas and NGL revenues $3,866
 $4,767
 $9,336
Gains (losses) on undesignated oil, natural gas and NGL derivatives (545) 661
 1,055
Losses on terminated cash flow hedges (33) (37) (37)
Total oil, natural gas and NGL revenues $3,288
 $5,391
 $10,354
The components of marketing gathering and compression revenues for the years ended December 31, 2016, 20152019, 2018 and 20142017 are presented below.below:    
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Marketing revenues $3,971
 $5,069
 $4,511
Gains (losses) on undesignated marketing natural gas derivatives (4) 7
 
Total marketing revenues $3,967
 $5,076
 $4,511
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Marketing, gathering and compression revenues $4,881
 $7,077
 $12,224
Gains (losses) on undesignated supply contract derivatives (297) 296
 1
Total marketing, gathering and compression revenues $4,584
 $7,373
 $12,225
The components of interest expense for the years ended December 31, 2016, 2015 and 2014 are presented below. 
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Interest expense on senior notes $588
 $682
 $704
Interest expense on term loan 46
 
 36
Amortization of loan discount, issuance costs and other 33
 62
 42
Amortization of premium associated with troubled debt restructuring (165) (3) 
Interest expense on revolving credit facilities 35
 12
 28
Gains on terminated fair value hedges (2) (3) (3)
(Gains) losses on undesignated interest rate derivatives 12
 (9) (81)
Capitalized interest (251) (424) (637)
Total interest expense $296
 $317
 $89
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


Effect of Derivative Instruments – Accumulated Other Comprehensive Income (Loss)
A reconciliation of the changes in accumulated other comprehensive income (loss) in our consolidated statements of stockholders’ equity related to our cash flow hedges is presented below.below:
  Years Ended December 31,
  2019 2018 2017
  Before 
Tax  
 After 
Tax  
 Before 
Tax  
 After 
Tax  
 Before 
Tax  
 After 
Tax  
  ($ in millions)
Balance, beginning of period $(80) $(23) $(114) $(57) $(153) $(96)
Net change in fair value 
 
 
 
 5
 5
Losses reclassified to income 35
 35
 34
 34
 34
 34
Balance, end of period $(45) $12
 $(80) $(23) $(114) $(57)

  Years Ended December 31,
  2016 2015 2014
  Before 
Tax  
 After 
Tax  
 Before 
Tax  
 After 
Tax  
 Before 
Tax  
 After 
Tax  
  ($ in millions)
Balance, beginning of period $(160) $(99) $(231) $(143) $(269) $(167)
Net change in fair value (27) (13) 32
 20
 1
 1
Losses reclassified to income 34
 16
 39
 24
 37
 23
Balance, end of period $(153) $(96) $(160) $(99) $(231) $(143)
Approximately $97 million of theThe accumulated other comprehensive loss as of December 31, 20162019 represents the net deferred loss associated with commodity derivative contracts that were previously designated as cash flow hedges for which the hedged production is still expectedoriginal contract months are yet to occur. DeferredRemaining deferred gain or loss amounts will be recognized in earnings in the month infor which the originally forecasted hedged production occurs.original contract months are to occur. As we early adopted ASU 2019-12 in the current period, the tax effect will be recognized in earnings in the year ended December 31, 2022. As of December 31, 2016,2019, we expect to transfer approximately $22$33 million of net loss included in accumulated other comprehensive income to net income (loss) during the next 12 months. The remaining amounts will be transferred by December 31, 2022.
Credit Risk Considerations
Our derivative instruments expose us to our counterparties’ credit risk. To mitigate this risk, we enter into derivative contracts only with counterparties that are highly rated investment gradeor deemed by us to have acceptable credit strength and deemed by management to be competent and competitive market makers,market-makers, and we attempt to limit our exposure to non-performance by any single counterparty. As of December 31, 2016,2019, our oil, natural gas and NGL and foreign currency derivative instruments were spread among 1210 counterparties.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Hedging Arrangements
Certain of our hedging arrangements are with counterparties that are also lenders (or affiliates of lenders) under the Chesapeake revolving credit facility. The contracts entered into with these counterparties are secured by the same collateral that secures the Chesapeake revolving credit facility. In 2015,addition, we began enteringenter into bilateral hedging agreements.agreements with other counterparties. The counterparties’ and our obligations under certain of the bilateral hedging agreements must be secured by cash or letters of credit to the extent that any mark-to-market amounts owed to us or by us exceed defined thresholds. In 2016, certainAs of our counterparties that are also lenders (or affiliates of our lenders) under our revolving credit facility entered into derivative contracts to be secured by the same collateral that secures the revolving credit facility. This allows us to reduceDecember 31, 2019, we did not have any cash or letters of credit posted as security with those counterparties.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

collateral for our commodity derivatives.
Fair Value
The fair value of our derivatives is based on third-party pricing models which utilize inputs that are either readily available in the public market, such as oil, natural gas and NGL forward curves and discount rates, or can be corroborated from active markets or broker quotes. These values are compared to the values given by our counterparties for reasonableness. Since oil, natural gas NGL, interest rate and cross currencyNGL swaps do not include optionality and therefore generally have no unobservable inputs, they are classified as Level 2. All other derivatives have some level of unobservable input, such as volatility curves, and are therefore classified as Level 3. Derivatives are also subject to the risk that either party to a contract will be unable to meet its obligations. We factor non-performance risk into the valuation of our derivatives using current published credit default swap rates. To date, this has not had a material impact on the values of our derivatives.
The following table provides information for financial assets (liabilities) measured at fair value on a recurring basis as of December 31, 20162019 and 2015:2018:
  
Quoted
Prices in
Active
Markets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2) 
 
Significant
Unobservable
Inputs
(Level 3)
 
Total
Fair Value
    ($ in millions)  
As of December 31, 2019        
Derivative Assets (Liabilities):        
Commodity assets $
 $160
 $14
 $174
Commodity liabilities 
 (42) (2) (44)
Total derivatives $
 $118
 $12
 $130
         
As of December 31, 2018        
Derivative Assets (Liabilities):        
Commodity assets $
 $319
 $103
 $422
Commodity liabilities 
 (131) (16) (147)
Utica divestiture contingent consideration 
 
 7
 7
Total derivatives $
 $188
 $94
 $282

  
Quoted
Prices in
Active
Markets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2) 
 
Significant
Unobservable
Inputs
(Level 3)
 
Total
Fair��Value
    ($ in millions)  
As of December 31, 2016        
Derivative Assets (Liabilities):        
Commodity assets $
 $1
 $
 $1
Commodity liabilities 
 (495) (10) (505)
Foreign currency liabilities 

(73) 
 (73)
Total derivatives $
 $(567) $(10) $(577)
         
As of December 31, 2015        
Derivative Assets (Liabilities):        
Commodity assets $
 $372
 $9
 $381
Commodity liabilities 
 (14) (100) (114)
Foreign currency liabilities 
 (52) 
 (52)
Supply contract assets 
 
 297
 297
Total derivatives $
 $306
 $206
 $512


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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


A summary of the changes in the fair values of Chesapeake’sour financial assets (liabilities) classified as Level 3 during 20162019 and 20152018 is presented below.below:
 
Commodity
Derivatives
 
Supply
Contracts
 
Commodity
Derivatives
 Utica Contingent Consideration
 ($ in millions) ($ in millions)
Beginning balance as of December 31, 2015 $(91) $297
Balance, as of January 1, 2019 $87
 $7
Total gains (losses) (realized/unrealized):        
Included in earnings(a)
 6
 (118) (59) (7)
Total purchases, issuances, sales and settlements:        
Settlements 75
 (33) (16) 
Sales 
 (146)
Ending balance as of December 31, 2016 $(10) $
Balance, as of December 31, 2019 $12
 $
        
Beginning balance as of December 31, 2014 $(54) $1
Balance, as of January 1, 2018 $(15) $
Total gains (losses) (realized/unrealized):        
Included in earnings(a)
 100
 316
 77
 7
Total purchases, issuances, sales and settlements:        
Settlements (137) (20) 25
 
Ending balance as of December 31, 2015 $(91) $297
Balance, as of December 31, 2018 $87
 $7

___________________________________________
(a) 
Oil, Natural Gas
and NGL
Sales
 Marketing, Gathering and Compression Revenue
 
  2016 2015 2016 2015
  ($ in millions)
Total gains (losses) included in earnings for the period $6
 $100
 $(118) $316
Change in unrealized gains (losses) related to assets still held at reporting date $(7) $43
 $
 $296
(a)  Commodity Derivatives Utica Contingent Consideration
  
   2019 2018 2019 2018
   ($ in millions)
 Total gains (losses) included in earnings for the period $(59) $77
 $(7) $7
 
Change in unrealized gains (losses) related to assets
still held at reporting date
 $(19) $86
 $
 $7
Qualitative and Quantitative Disclosures about Unobservable Inputs for Level 3 Fair Value Measurements
The significant unobservable inputs for Level 3 derivative contracts include unpublished forward prices of natural gas,market volatility. Changes in market volatility and credit risk of counterparties. Changes in these inputs impact the fair value measurement of our derivative contracts, which is based on an estimate derived from option models. For example, an increase or decrease in the forward prices and volatility of oil and natural gas prices decreases or increases the fair value of oil and natural gas derivatives, and adverse changes to our counterparties’ creditworthiness decreases the fair value of our derivatives. The following table presents quantitative information about Level 3 inputs used in the fair value measurement of our commodity derivative contracts at fair value as of December 31, 2016:2019:
Instrument
Type
 
Unobservable
Input
 Range 
Weighted
Average
 Fair Value
December 31, 2019
        ($ in millions)
Oil trades Oil price volatility curves 20.71% – 67.28% 25.62% $14
Natural gas trades 
Natural gas price volatility
curves
 16.93% – 171.49% 39.67% $(2)

Instrument
Type
 
Unobservable
Input
 Range 
Weighted
Average
 Fair Value
December 31, 2016
        ($ in millions)
Oil trades Oil price volatility curves 17.32% - 25.95% 23.95% $(1)
Natural gas trades 
Natural gas price volatility
curves
 19.72% – 68.72% 30.71% $(9)


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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


12.15.Oil and Natural Gas Property TransactionsFair Value Measurements
Under full cost accounting rules, we accountedRecurring Fair Value Measurements
Other Current Assets. Assets related to our deferred compensation plan are included in other current assets. The fair value of these assets is determined using quoted market prices as they consist of exchange-traded securities.
Other Current Liabilities. Liabilities related to our deferred compensation plan are included in other current liabilities. The fair values of these liabilities are determined using quoted market prices as the plan consists of exchange-traded mutual funds.
Financial Assets (Liabilities). The following table provides fair value measurement information for the salesabove-noted financial assets (liabilities) measured at fair value on a recurring basis as of oilDecember 31, 2019 and natural gas properties discussed below as adjustments2018:
  
Quoted
Prices in
Active
Markets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2) 
 
Significant
Unobservable
Inputs
(Level 3)
 
Total
Fair Value
  ($ in millions)
As of December 31, 2019        
Financial Assets (Liabilities):        
Other current assets $42
 $
 $
 $42
Other current liabilities (43) 
 
 (43)
Total $(1) $
 $
 $(1)
         
As of December 31, 2018        
Financial Assets (Liabilities):        
Other current assets $50
 $
 $
 $50
Other current liabilities (51) 
 
 (51)
Total $(1) $
 $
 $(1)

See Note 5 for information regarding fair value measurement of our debt instruments. See Note 14 for information regarding fair value measurement of our derivatives.
16.Capitalized Exploratory Well Costs
A summary of the changes in our capitalized well costs for the years ended December 31, 2019, 2018 and 2017 is detailed below. Additions pending the determination of proved reserves excludes amounts capitalized and subsequently charged to expense within the same year.
  2019 2018 2017
  (in millions)
Balance as of January 1 $36
 $36
 $41
Additions pending the determination of proved reserves 7
 74
 14
Divestitures and other (3) 
 
Reclassifications to proved properties (17) (40) (19)
Charges to exploration expense (16) (34) 
Balance as of December 31 $7
 $36
 $36

The following table provides an aging of capitalized costs with no recognitionand the number of gain or loss asprojects for which exploratory well costs have been capitalized for a period greater than one year since the sales did not involve a significant change in proved reserves or significantly alter the relationship between costs and proved reserves.
2016 Transactions
We conveyed our interests in the Barnett Shale operating area located in north central Texas and received from the buyer aggregate net proceedscompletion of approximately $218 million. We sold approximately 212,000 net developed and undeveloped acres along with other property and equipment. We simultaneously terminated most of our future commitments associated with this asset. In connection with this disposition, we paid $361 million to terminate certain natural gas gathering and transportation agreements and paid $58 million to restructure a long-term sales agreement. We recognized $361 million of expense for the termination of contracts and deferred charges of $58 million for the restructured contract. The deferred charges will be amortized to marketing, gathering and compression revenue over the life of the agreement. We may be required to pay additional amounts in respect of certain title and environmental contingencies. Additionally, we recognized a charge of $284 million in 2016 related to the impairment of other fixed assets sold in the divestiture.
We sold the majority of our upstream and midstream assets in the Devonian Shale located in West Virginia, Kentucky and Virginia for proceeds of $140 million. We sold an interest in approximately 1.3 million net acres, retaining all rights below the base of the Kope formation, and approximately 5,300 wells along with related gathering assets, and other property and equipment. Additionally, we recognized an impairment charge of $142 million in 2016 related to other fixed assets sold in the divestiture. In connection with this divestiture, we purchased the underlying interests in one of our remaining VPP transactions for $127 million. All of the acquired interests were conveyed in our divestiture and we no longer have any future obligations related to this VPP.
We acquired oil and natural gas properties in the Haynesville Shale for approximately $85 million.
We sold certain of our other noncore oil and natural gas properties for net proceeds of approximately $1.048 billion, after post-closing adjustments. In conjunction with certain of these sales, we purchased oil and natural gas interests previously sold to third parties in connection with four of our VPP transactions for approximately $259 million. Substantially all of the acquired interests were part of the asset divestitures discussed above and we no longer have any further commitments or obligations related to these VPPs. The asset divestitures cover various operating areas.
2015 Transactions
CHK Cleveland Tonkawa, L.L.C. (CHK C-T) sold all of its oil and natural gas properties to FourPoint Energy, LLC and immediately used the consideration, plus other cash it had on hand, to repurchase and cancel all of CHK C-T’s outstanding preferred shares. In a related transaction, we sold noncore properties adjacent to the CHK C-T properties to FourPoint Energy, LLC for approximately $90 million.
Excluding proceeds received from selling additional interests in our joint venture leasehold described under Joint Ventures below, we received proceeds related to divestitures of other noncore oil and natural gas properties of approximately $66 million.drilling.
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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

2014 Transactions
We sold certain assets in the southern Marcellus Shale and a portion of the eastern Utica Shale to a subsidiary of Southwestern Energy Company for aggregate net proceeds of approximately $4.975 billion. We sold approximately 413,000 net acres and approximately 1,500 wells in northern West Virginia and southern Pennsylvania, of which 435 wells are in the Marcellus or Utica formations, along with related gathering assets and property, plant and equipment.
We exchanged interests in approximately 440,000 gross acres in the Powder River Basin in southeastern Wyoming with RKI Exploration & Production, LLC (RKI). Under the agreement, we conveyed to RKI approximately 137,000 net acres and our interest in 67 gross wells with an average working interest of approximately 22% in the northern portion of the Powder River Basin, where RKI was the designated operator. In exchange, RKI conveyed to us approximately 203,000 net acres and its interest in 186 gross wells with an average working interest of 48% in the southern portion of the Powder River Basin, where we were the designated operator. In conjunction with the exchange, we paid RKI approximately $450 million in cash.
We sold noncore leasehold interests in the Marcellus Shale to Rice Drilling B LLC, a wholly owned subsidiary of Rice Energy Inc. (NYSE:RICE), for net proceeds of $233 million.
We sold noncore leasehold interests, producing properties and 61 wellhead compressor units in South Texas to Hilcorp Energy Company for net proceeds of $133 million. Operating obligations related to VPP #5 were also transferred. See Volumetric Production Payments below.
We sold noncore leasehold interests and producing properties in East Texas and Louisiana for net proceeds of approximately $63 million. All commitments related to VPP #6 were also transferred. See Volumetric Production Payments below.
Excluding proceeds received from selling additional interests in our joint venture leasehold described under Joint Ventures below, we received proceeds related to divestitures of other noncore oil and natural gas properties of approximately $379 million.
Joint Ventures
In 2016, 2015 and 2014, we sold interests in additional leasehold we acquired in the Marcellus, Barnett, Utica, Eagle Ford shales and Mid-Continent plays to our joint venture partners for approximately $7 million, $33 million and $33 million, respectively.
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  2019 2018 2017
  (in millions)
Exploratory well costs capitalized for a period of one year or less $7
 $34
 $4
Exploratory well costs capitalized for a period greater than one year 
 2
 32
Balance as of December 31 $7
 $36
 $36
       
Number of projects with exploratory well costs capitalized for a period greater than one year 
 7
 6
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Volumetric Production Payments
From time to time, we have sold certain of our producing assets located in more mature producing regions through the sale of VPPs. A VPP is a limited-term overriding royalty interest in oil and natural gas reserves that (i) entitles the purchaser to receive scheduled production volumes over a period of time from specific lease interests; (ii) is free and clear of all associated future production costs and capital expenditures; (iii) is non-recourse to the seller (i.e., the purchaser’s only recourse is to the reserves acquired); (iv) transfers title of the reserves to the purchaser; and (v) allows the seller to retain all production beyond the specified volumes, if any, after the scheduled production volumes have been delivered. For all of our VPP transactions, we novated to each of the respective VPP buyers hedges that covered all VPP volumes sold. If contractually scheduled volumes exceed the actual volumes produced from the VPP wellbores that are attributable to the ORRI conveyed, either the shortfall will be made up from future production from these wellbores (or, at our option, from our retained interest in the wellbores) through an adjustment mechanism, or the initial term of the VPP will be extended until all scheduled volumes, to the extent produced, are delivered from the VPP wellbores to the VPP buyer. We retain drilling rights on the properties below currently producing intervals and outside of producing wellbores.
As the operator of the properties from which the VPP volumes have been sold, we bear the cost of producing the reserves attributable to these interests, which we include as a component of production expenses and production taxes in our consolidated statements of operations in the periods these costs are incurred. As with all non-expense-bearing royalty interests, volumes conveyed in a VPP transaction are excluded from our estimated proved reserves; however, the estimated production expenses and taxes associated with VPP volumes expected to be delivered in future periods are included as a reduction of the future net cash flows attributable to our proved reserves for purposes of determining our full cost ceiling test for impairment purposes and in determining our standardized measure. Pursuant to SEC guidelines, the estimates used for purposes of determining the cost center ceiling and the standardized measure are based on current costs. Our commitment to bear the costs on any future production of VPP volumes is not reflected as a liability on our balance sheet. The costs that will apply in the future will depend on the actual production volumes as well as the production costs and taxes in effect during the periods in which the production actually occurs, which could differ materially from our current and historical costs, and production may not occur at the times or in the quantities projected, or at all.
For accounting purposes, cash proceeds from the sale of VPPs were reflected as a reduction of oil and natural gas properties with no gain or loss recognized, and our proved reserves were reduced accordingly. We have also committed to purchase natural gas and liquids associated with our VPP transactions. Production purchased under these arrangements is based on market prices at the time of production, and the purchased natural gas and liquids are resold at market prices.
As of December 31, 2016, we had the following VPP outstanding:
        Volume Sold
VPP # Date of VPP         Location Proceeds Oil Natural Gas NGL Total
      ($ in millions) (mmbbl)  (bcf) (mmbbl) (bcfe)
9 May 2011 Mid-Continent $853
 1.7
 138
 4.8
 177
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The volumes produced on behalf of our VPP buyers during 2016, 2015 and 2014 were as follows:
Year Ended December 31, 2016
VPP # Oil Natural Gas NGL Total
  (mbbl)  (bcf)  (mbbl)  (bcfe)
 10(a)
 108.0
 3.0
 368.7
 5.9
9 152.4
 12.9
 347.1
 15.9
   4(a)
 20.0
 3.8
 
 3.9
   3(a)
 
 2.4
 
 2.4
   2(a)
 
 1.5
 
 1.5
   1(a)
 
 11.1
 
 11.1
  280.4
 34.7
 715.8
 40.7
         
Year Ended December 31, 2015
VPP # Oil Natural Gas NGL Total
  (mbbl)  (bcf)  (mbbl)  (bcfe)
10(a)
 310.0
 8.5
 1,043.9
 16.6
9 167.9
 14.2
 375.9
 17.4
   8(b)
 
 36.5
 
 36.5
   4(a)
 42.5
 8.0
 
 8.2
   3(a)
 
 6.4
 
 6.4
   2(a)
 
 4.0
 
 4.0
   1(a)
 
 13.3
 
 13.3
  520.4
 90.9
 1,419.8
 102.4
         
Year Ended December 31, 2014
VPP # Oil Natural Gas NGL Total
  (mbbl)  (bcf)  (mbbl)  (bcfe)
10(a)
 403.0
 10.6
 1,296.5
 20.7
9 187.5
 15.4
 411.0
 19.0
   8(b)
 
 60.1
 
 60.1
   6(c)
 23.1
 4.2
 
 4.3
   5(c)
 16.5
 4.6
 
 4.7
   4(a)
 48.1
 9.0
 
 9.2
   3(a)
 
 7.2
 
 7.2
   2(a)
 
 6.2
 
 6.2
   1(a)
 
 13.8
 
 13.8
  678.2
 131.1
 1,707.5
 145.2

(a)In connection with certain asset divestitures in 2016, we purchased the remaining oil and natural gas interests previously sold in connection with VPP #10, VPP #4, VPP #3, VPP #2 and VPP #1. A majority of the oil and natural gas interests purchased were subsequently sold to the buyers of the assets.
(b)VPP #8 expired in August 2015.
(c)We divested the properties associated with VPP #5 and VPP #6 in 2014.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The volumes remaining to be delivered on behalf of our VPP buyers as of December 31, 2016 were as follows:
    Volume Remaining as of December 31, 2016
VPP # Term Remaining Oil Natural Gas NGL Total
  (in months)  (mmbbl)  (bcf)  (mmbbl)  (bcfe)
9 50 0.5
 45.9
 1.2
 56.3

13.    Spin-Off of Oilfield Services Business
On June 30, 2014, we completed the spin-off of our oilfield services business, which we previously conducted through our indirect, wholly owned subsidiary COO, into SSE, an independent, publicly traded company. Following the close of business on June 30, 2014, we distributed to Chesapeake shareholders one share of SSE common stock and cash in lieu of fractional shares for every 14 shares of Chesapeake common stock held on June 19, 2014, the record date for the distribution.
Prior to the completion of the spin-off, we and COO and its affiliates engaged in the following series of transactions:
COO and certain of its subsidiaries entered into a $275 million senior secured revolving credit facility and a $400 million secured term loan, the proceeds of which were used to repay in full and terminate COO’s then-existing credit facility.
COO distributed to us its compression unit manufacturing business, its geosteering business and the proceeds from the sale of substantially all of its crude oil hauling business.
We transferred to a subsidiary of COO, at carrying value, certain of our buildings and land, most of which COO had been leasing from us prior to the spin-off.
COO issued $500 million of 6.5% Senior Notes due 2022 in a private placement and used the net proceeds to make a cash distribution of approximately $391 million to us, to repay a portion of outstanding indebtedness under the new revolving credit facility and for general corporate purposes.
Following the spin-off, we have no ownership interest in SSE. Therefore, we ceased to consolidate SSE’s assets and liabilities as of the spin-off date. Because we expect to have significant continued involvement associated with SSE’s future operations through the various agreements we entered into in connection with the spin-off, our former oilfield services segment’s historical financial results for periods prior to the spin-off continue to be included in our historical financial results as a component of continuing operations. For segment disclosures, we have labeled our oilfield services segment as “Former Oilfield Services”. See Note 21 for additional information regarding our segments.
In 2014, our stockholders’ equity decreased by $270 million, net of $151 million of associated deferred tax liabilities, as a result of the spin-off, and we recognized $15 million of charges associated with the spin-off that are included in restructuring and other termination costs on our consolidated statement of operations.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

14.Investments
A summary of our investments, including our approximate ownership percentage and carrying value as of December 31, 2016 and 2015, is presented below.
    
Approximate
Ownership %
 
Carrying
Value
  
Accounting
Method
 December 31,
2016
 December 31,
2015
 December 31,
2016
 December 31,
2015
        ($ in millions)
Sundrop Fuels, Inc. Equity 56% 56% $
 $119
FTS International, Inc. Equity 30% 30% 
 
Other  —% —% 7
 17
Total investments(a)
 $7
 $136

(a)Balance is included in other long-term assets on our consolidated balance sheets.
Sundrop Fuels, Inc. Sundrop Fuels, Inc. (Sundrop), based in Longmont, Colorado, is a privately held cellulosic biofuels company that is constructing a nonfood biomass-based “green gasoline” plant. Based on our review of the investment in Sundrop, we recognized an other-than-temporary impairment of $119 million in 2016. In 2015, we recorded a $20 million charge related to our share of Sundrop's net loss and $9 million of capitalized interest associated with the construction of Sundrop’s plant.
FTS International, Inc. FTS International, Inc. (FTS), based in Fort Worth, Texas, is a privately held company that, through its subsidiaries, provides hydraulic fracturing and other services to oil and gas companies. In 2015, we recorded our equity in FTS’ net losses and other adjustments, prior to intercompany profit eliminations, of $107 million and an accretion adjustment of $44 million related to the excess of our underlying equity in net assets of FTS over our carrying value. Due to the decrease in the oil and natural gas pricing environment, we recognized an other-than-temporary impairment on our investment in FTS of $53 million during 2015.
Sold Investments
Chaparral Energy, Inc. Chaparral Energy, Inc. (Chaparral), based in Oklahoma City, Oklahoma, is a private independent oil and natural gas company engaged in the production, acquisition and exploitation of oil and natural gas properties. In 2014, we sold all of our interest in Chaparral for net cash proceeds of $209 million. We recorded a $73 million gain related to the sale.
Other. In 2014, we sold an equity investment in a natural gas trading and management firm for cash proceeds of $30 million and recorded a loss of $6 million associated with the transaction.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

15.Variable Interest Entities
We consolidate the activities of VIEs for which we are the primary beneficiary. In order to determine whether we own a variable interest in a VIE, we perform qualitative analysis of the entity’s design, organizational structure, primary decision makers and relevant agreements.
Consolidated VIE
Chesapeake Granite Wash Trust (the Trust) is considered a VIE due to the lack of voting or similar decision-making rights by its equity holders regarding activities that have a significant effect on the economic success of the Trust and because the royalty interest owners, other than Chesapeake, do not have the ability to exercise substantial liquidation rights. Our ownership in the Trust and our previous obligations under the development agreement constitute variable interests. We have determined that we are the primary beneficiary of the Trust because (i) we have the power to direct the activities that most significantly impact the economic performance of the Trust via our operation of the majority of the producing wells and the completed development wells, and (ii) as a result of the subordination and incentive thresholds applicable to the subordinated units we hold in the Trust, we have the obligation to absorb losses and the right to receive residual returns that potentially could be significant to the Trust. As a result, we consolidate the Trust in our financial statements, and the common units of the Trust owned by third parties are reflected as a noncontrolling interest.
The Trust is a consolidated entity whose legal existence is separate from Chesapeake and our other consolidated subsidiaries, and the Trust is not a guarantor of any of Chesapeake’s debt. The creditors or beneficial holders of the Trust have no recourse to the general credit of Chesapeake. In consolidation, as of December 31, 2016, $1 million of cash and cash equivalents, $488 million of proved oil and natural gas properties, $458 million of accumulated depreciation, depletion and amortization and $3 million of other current liabilities were attributable to the Trust. We have presented parenthetically on the face of the consolidated balance sheets the assets of the Trust that can be used only to settle obligations of the Trust and the liabilities of the Trust for which creditors do not have recourse to the general credit of Chesapeake.
Unconsolidated VIE
Mineral Acquisition Company I, L.P. In 2012, MAC-LP, L.L.C., a wholly owned non-guarantor unrestricted subsidiary of Chesapeake, entered into a partnership agreement with KKR Royalty Aggregator LLC (KKR) to form Mineral Acquisition Company I, L.P. The purpose of the partnership was to acquire mineral interests, or royalty interests carved out of mineral interests, in oil and natural gas basins in the continental United States. The partnership was an unconsolidated VIE and the carrying value of our equity investment was $10 million as of December 31, 2015. During 2016, we sold certain mineral interests held outside the partnership for approximately $9 million, and assigned our interest in the partnership to KKR, which eliminated our future commitments to acquire additional mineral interests. As a result of the transaction, we wrote off our equity investment and recognized a $10 million loss which is included in net gain (loss) on sales of investments in our consolidated statements of operations.
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16.17.Other Property and Equipment
Other Property and Equipment
A summary of other property and equipment held for use and the estimated useful lives thereof is as follows:
  December 31, 
Estimated
Useful
Life
  2019 2018 
  ($ in millions) (in years)
Buildings and improvements $1,058
 $1,053
 10 – 39
Computer equipment 355
 353
 5
Sand mine 78
 
 10 – 30
Natural gas compressors(a)
 48
 48
 3 – 20
Land 115
 106
  
Other 156
 161
 5 – 20
Total other property and equipment, at cost 1,810
 1,721
  
Less: accumulated depreciation (692) (630)  
Total other property and equipment, net $1,118
 $1,091
  
  December 31, 
Estimated
Useful
Life
  2016 2015 
  ($ in millions) (in years)
Buildings and improvements $1,119
 $1,209
 10 – 39
Computer equipment 337
 318 5
Natural gas compressors(a)
 251
 483 3 – 20
Land 139
 289
  
Gathering systems and treating plants(a)
 2
 214
 20
Other 205
 414
 2 – 20
Total other property and equipment, at cost 2,053
 2,927
  
Less: accumulated depreciation (632) (813)  
Total other property and equipment, net $1,421
 $2,114
  

(a)IncludedIncludes assets under finance lease of $27 million, less accumulated depreciation of $10 million and $1 million, as of December 31, 2019 and 2018, respectively. The related amortization expense for assets under finance lease is included in depreciation, depletion and amortization expense on our marketing, gathering and compression operating segment. The decrease is primarily related to asset divestitures in 2016.consolidated statement of operations.
Net (Gains) Losses on Sales of Fixed Assets
18.Investments
A summary by asset class of (gains) or losses on sales of fixed assets for the years ended December 31, 2016, 2015 and 2014 is as follows:
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Buildings and land $(1) $3
 $(2)
Natural gas compressors (10) 
 (195)
Gathering systems and treating plants 
 1
 8
Oilfield services equipment 
 
 (7)
Other (1) 
 (3)
Total net (gains) losses on sales of fixed assets $(12) $4
 $(199)
Natural Gas CompressorsFTS International, Inc. (NYSE: FTSI). In 2014,2018, FTS International, Inc. completed an initial public offering. Due to the offering, the ownership percentage of our equity method investment in FTSI decreased from approximately 29% to 24% and resulted in a gain of $78 million. In addition, we sold 703 compressors to various partiesapproximately 4.3 million shares of FTSI in the offering for $693net proceeds of approximately $74 million and recorded an aggregaterecognized a gain of $195$61 million decreasing our ownership percentage to approximately 20%. We continue to hold approximately 22.0 million shares in the publicly traded company. In 2019, the hydraulic fracturing industry experienced challenging operating conditions resulting in the current fair value of our investment in FTSI falling below book value of $65 million and remaining below that amount as of the end of the year. Based on the sales.
Assets Held for Sale
We are continuing to pursue the saleFTSI’s 2019 operating results and FTSI’s share price of buildings and land located primarily in Oklahoma and West Virginia. Buildings and land are recorded within our other segment. These assets are being actively marketed, and we believe it is probable they will be sold over the next 12 months. As a result, these assets are reflected as held for sale$1.04 per share as of December 31, 2016. Oil2019, we determined that the reduction in fair value is other-than-temporary, and natural gas propertiesrecognized an impairment of our investment in FTSI of approximately $43 million. We will continue to monitor the hydraulic fracturing industry, FTSI operating results and FTSI share price for indicators that the reduction in fair value is other-than-temporary, which could result in an additional impairment of our investment in FTSI.
JWH Midstream LLC (JWH). In 2019, in connection with the acquisition of WildHorse, we intendobtained a 50% membership interest in JWH Midstream LLC (JWH). The carrying value of our investment in JWH, which was being accounted for as an equity method investment, was approximately $17 million. In 2019, we paid approximately $7 million to sell are not presented as held for sale pursuantterminate our involvement in the partnership. This removed us from any future obligations related to this joint venture and, therefore, we impaired the rules governing full cost accounting for oilvalue of the investment and gas properties. Asrecognized approximately $24 million of December 31, 2016 and 2015, we had $29 million and $95 million, respectively, of buildings and land, net of accumulated depreciation, classified as assets held for sale on our consolidated balance sheets.impairment expense in 2019.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


17.19.Impairments
Impairments of Oil and Natural Gas Properties
Our proved oil and natural gas properties are subject to quarterly full cost ceiling tests. Under the ceiling test, capitalized costs, less accumulated amortization and related deferred income taxes, may not exceed an amount equal to the sumA summary of the present value of estimated future net revenues (adjusted for cash flow hedges) less estimated future expenditures to be incurred in developing and producing the proved reserves, less any related income tax effects. Estimated future net revenues for the quarterly ceiling limit are calculated using the average of commodity prices on the first day of the month over the trailing 12-month period. In 2016 and 2015, capitalized costsour impairments of oil and natural gas properties exceededfor the ceiling, resulting in impairments in the carrying value of our oilyears ended December 31, 2019, 2018 and natural gas properties of $2.564 billion and $18.238 billion, respectively. In 2014, we did not have an impairment for our oil and natural gas properties. Cash flow hedges which relate to future periods increased the ceiling test impairment by $176 million in 2015.2017 is as follows:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Impairments due to lower forecasted commodity prices $8
 $23
 $27
Impairments due to reduction in future development(a)
 
 
 560
Impairments due to anticipated sale 
 55
 222
Total impairments of oil and natural gas properties $8
 $78
 $809

(a)The impairment was the result of an updated development plan in 2017, which included a removal of PUDs from properties in the process of being divested in the Mid-Continent operating area.
Impairments of Fixed Assets and Other
We review our long-lived assets, other than oil and natural gas properties, for recoverability whenever events or changes in circumstances indicate that carrying amounts may not be recoverable. We recognize an impairment if the carrying amount of a long-lived asset is not recoverable and exceeds its fair value. A summary of our impairments of fixed assets by asset class and other charges for the years ended December 31, 2016, 20152019, 2018 and 20142017 is as follows:
  Years Ended December 31,
  2019 2018 2017
  ($ in millions)
Natural gas compressors(a)
 $
 $45
 $
Buildings and land 1
 4
 5
Other 2
 4
 
Total impairments of fixed assets and other $3
 $53
 $5

(a)In 2018, we recorded a $45 million impairment related to 890 compressors for the difference between carrying value and the fair value of the assets.
  Years Ended December 31,
  2016 2015 2014
  ($ in millions)
Barnett Shale exit costs $645
 $
 $
Devonian Shale exit costs 142
 
 
Gathering systems 3
 
 13
Natural gas compressors 21
 21
 11
Buildings and land 11
 
 18
Oilfield services equipment 
 
 23
Other 16
 173
 23
Total impairments of fixed assets and other $838
 $194
 $88
20.Other Operating Expense
Barnett Shale Exit Costs. In 2016,2019, we conveyedrecorded approximately $37 million of costs related to our interests in the Barnett Shale operating area located in north central Texasacquisition of WildHorse which consisted of consulting fees, financial advisory fees, legal fees and simultaneously terminated mosttravel and lodging expenses. In addition, we recorded approximately $38 million of our future commitments associated with this asset. Asseverance expense as a result of this transaction,the acquisition of WildHorse. A majority of the WildHorse executives and employees were terminated on the date of acquisition. These executives and employees were entitled to severance benefits in accordance with existing employment agreements.
In 2017, we recognized $361 million of chargesterminated future natural gas transportation commitments related to the terminationdivested assets for cash payments of natural gas gathering and$126 million. Also, in 2017, we paid $290 million to assign an oil transportation agreements. We also recognized an impairmentagreement to a third party.
21.Restructuring and Other Termination Costs
Workforce Reductions
In 2019, we incurred a charge of $284$12 million in 2016 related to other fixed assets soldone-time termination benefits for certain employees. In 2018, we underwent a reduction in the divestiture.
Devonian Shale Exit Costs. In 2016, we sold the majorityworkforce impacting approximately 13% of employees across all functions, primarily on our upstream and midstream assets in the Devonian Shale located in West Virginia and Kentucky. We recognized an impairment charge of $142 million in 2016 related to other fixed assets sold in the divestiture.
Natural Gas Compressors. In 2016, we recorded a $13 million impairment related to obsolescence of 205 compressors. Additionally, we recorded an $8 million impairment related to 155 compressors for the difference between the aggregate sales price and carrying value.
Oilfield Services Equipment. In 2014, we purchased 31 leased rigs and equipment from various lessors for an aggregate purchase price of $140 million.Oklahoma City campus. In connection with these purchases,the reduction, we paid $8 million in early lease termination costs, which are included in impairments of fixed assets and other in the consolidated statement of operations. In addition, we recognized an impairment lossincurred a total charge of approximately $15$38 million related to leasehold improvements associated with these assets. The drilling rigs and equipment are included in our former oilfield services operating segment.for one-time termination benefits.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Other. In 2015, we recorded a $47 million loss contingency related to contract disputes. In 2015, we recorded a $22 million impairment of a note receivable as a result of the increased credit risk associated with declining commodity prices. In addition, under the terms of our joint venture agreements (see Note 12), we are required to extend, renew or replace certain expiring joint leasehold, at our cost, to ensure that the net acreage is maintained in certain designated areas. In 2015, we entered into a settlement with Total regarding our acreage maintenance commitment in our Barnett Shale joint venture and accrued a $70 million charge. In 2015, as a result of reductions in our planned drilling activity in response to declines in oil and natural gas prices, we terminated contracts with drilling contractors and incurred charges of $18 million. The contract termination charges are included in our exploration and production operating segment. In 2014, we revised our estimate of our net acreage shortfall with Total under the terms of our Barnett Shale joint venture agreement and recorded a $22 million charge. See Note 4 for additional discussion regarding our net acreage maintenance commitments.
Nonrecurring Fair Value Measurements. Fair value measurements for certain of the impairments discussed above were based on recent sales information for comparable assets. As the fair value was estimated using the market approach based on recent prices from orderly sales transactions for comparable assets between market participants, these values were classified as Level 2 in the fair value hierarchy. Other inputs used were not observable in the market; these values were classified as Level 3 in the fair value hierarchy.

18.Restructuring and Other Termination Costs
Workforce Reductions
In 2016, we recognized $6 million of charges related to a reduction of workforce in connection with the restructuring of our compressor manufacturing subsidiary and the reductions of workforce resulting from the conveyance of our interests in the Barnett Shale and Devonian Shale operating areas.
On September 29, 2015, we reduced our workforce by approximately 15% as part of an overall plan to reduce costs and better align our workforce with the needs of our business and current oil and natural gas commodity prices. In connection with the reduction, we incurred a total charge of approximately $55 million in 2015 for one-time termination benefits. This charge consisted of $47 million in salary expense and $8 million in other termination benefits.
Oilfield Services Spin-Off
On June 30, 2014, we completed the spin-off of our oilfield services business through a pro rata distribution of SSE common stock to holders of Chesapeake common stock. In connection with the spin-off, in 2014, we incurred restructuring charges of $15 million, including transaction costs of $17 million, stock-based compensation adjustments of $5 million for Chesapeake employees, credits of $10 million of forfeitures for Seventy Seven Energy employees and $3 million in debt extinguishment costs. See Note 13 for further discussion of the spin-off.
Other
We recognized credits of $19 million and $8 million in 2015 and 2014, respectively, related to negative fair value adjustments to PSUs granted to former executives of the Company which corresponded to a decrease in the trading price of our common stock. For further discussion of our PSUs, see Note 9.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

19.Fair Value Measurements
Recurring Fair Value Measurements
Other Current Assets. Assets related to Chesapeake’s deferred compensation plan are included in other current assets. The fair value of these assets is determined using quoted market prices as they consist of exchange-traded securities.
Other Current Liabilities. Liabilities related to Chesapeake’s deferred compensation plan are included in other current liabilities. The fair values of these liabilities are determined using quoted market prices as the plan consists of exchange-traded mutual funds.
Financial Assets (Liabilities). The following table provides fair value measurement information for the above-noted financial assets (liabilities) measured at fair value on a recurring basis as of December 31, 2016 and 2015:
  
Quoted
Prices in
Active
Markets
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2) 
 
Significant
Unobservable
Inputs
(Level 3)
 
Total
Fair Value
    ($ in millions)  
As of December 31, 2016        
Financial Assets (Liabilities):        
Other current assets $49
 $
 $
 $49
Other current liabilities (51) 
 
 (51)
Total $(2) $
 $
 $(2)
         
As of December 31, 2015        
Financial Assets (Liabilities):        
Other current assets $50
 $
 $
 $50
Other current liabilities (51) 
 
 (51)
Total $(1) $
 $
 $(1)
See Note 3 for information regarding fair value measurement of our debt instruments. See Note 11 for information regarding fair value measurement of our derivatives.
Nonrecurring Fair Value Measurements
See Note 17 regarding nonrecurring fair value measurements.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

20.22.Asset Retirement Obligations
The components of the change in our asset retirement obligations are shown below.below:
  Years Ended December 31,
  2019 2018
  ($ in millions)
Asset retirement obligations, beginning of period $166
 $177
Additions(a)
 21
 3
Revisions 18
 11
Settlements and disposals (5) (35)
Accretion expense 11
 10
Asset retirement obligations, end of period 211
 166
Less current portion 11
 11
Asset retirement obligation, long-term $200
 $155
  Years Ended December 31,
  2016 2015
  ($ in millions)
Asset retirement obligations, beginning of period $473
 $465
Additions 4
 6
Revisions(a)
 (58) 13
Settlements and disposals(b)
 (182) (34)
Accretion expense 24
 23
Asset retirement obligations, end of period 261
 473
Less current portion (c)
 14
 21
Asset retirement obligation, long-term $247
 $452

(a)Revisions in estimated liabilities duringDuring 2019, approximately $17 million of additions relate to the period relate primarily to changes in estimatesacquisition of asset retirement costs and the expected timing of settlement.
(b)Settlements and disposals in 2016 relate primarily to wells divested in the Barnett and Devonian Shale areas.
(c)Balance is included in other current liabilities on our consolidated balance sheets.WildHorse.
21.23.Major Customers and Segment Information
Sales to BP PLCValero Energy Corporation constituted approximately 12% and 10% and 14% of our total revenues (before the effects of hedging)hedging for the years ended December 31, 20162019 and 2015,2018, respectively. Sales to Exxon Mobil CorporationRoyal Dutch Shell PLC constituted approximately 12%10% of our total revenues (before the effects of hedging) for the year ended December 31, 2014.2017. No other purchasers accounted for more than 10% of our total revenues in 2019, 2018 or 2017.
24.Related Party Transactions
Our equity method investees are considered related parties. Hydraulic fracturing and other services are provided to us in the ordinary course of business by our equity affiliate FTSI. As well operators, we are reimbursed by other working interest owners through the joint interest billing process for their proportionate share of these costs. For the years ended December 31, 2019, 2018 and 2017, our expenditures for hydraulic fracturing services with FTSI were nominal, $93 million and $111 million, respectively.
25.Condensed Consolidating Financial Information
Chesapeake Energy Corporation is a holding company, owns no operating assets and has no significant operations independent of its subsidiaries. Our obligations under the revolving credit facility, term loan, senior secured second lien notes, and outstanding senior unsecured notes and convertible senior notes listed in Note 5 are fully and unconditionally guaranteed, jointly and severally, by certain of our 100% owned subsidiaries. Our BVL subsidiaries are guarantors of our obligations under the revolving credit facility, term loan and senior secured second lien notes, but are not guarantors of our obligations under our outstanding senior unsecured notes or convertible senior notes as of December 31, 2016, we have two reportable operating segments, each of which is managed separately because of the nature of its operations. The exploration2019. Chesapeake has an obligation and production operating segment is responsible for finding and producing oil, natural gas and NGL. The marketing, gathering and compression operating segment is responsible for marketing, gathering and compression of oil, natural gas and NGL. In addition, priorintends to the spin-offadd our BVL subsidiaries as guarantors of our oilfield services businessobligations under such notes on or before June 20, 2020 in June 2014, our former oilfield services operating segment was responsibleaccordance with the various indentures governing the same. Subsidiaries with noncontrolling interests, consolidated variable interest entities and certain de minimis subsidiaries are non-guarantors.
The tables below are condensed consolidating financial statements for drilling, oilfield trucking, oilfield rentals, hydraulic fracturingChesapeake Energy Corporation (parent) on a stand-alone, unconsolidated basis, and other oilfield services for both Chesapeake-operated wellsits combined guarantor and wells operated by third parties. Our former oilfield services segment’s historical financial results for periods prior to the spin-off continue to be included in our historical financial resultscombined non-guarantor subsidiaries, including BVL subsidiaries, as a component of continuing operations, as reflected in the table below.
Management evaluates the performance of our segments based upon income (loss) before income taxes. Revenues from the sale of oil, natural gasDecember 31, 2019 and NGL related to Chesapeake’s ownership interests by our marketing, gathering2018 and compression operating segment are reflected as revenues within our exploration and production operating segment. These amounts totaled $3.750 billion, $4.372 billion and $8.565 billion for the years ended December 31, 2016, 20152019, 2018 and 2014, respectively. Revenues generated by2017. This financial information may not necessarily be indicative of our former oilfield services operating segment for work performed for Chesapeake’s exploration and production operating segment were reclassified to the full cost pool based on Chesapeake’s ownership interest. Revenues reclassified totaled $544 million for year ended December 31, 2014. No income was recognized in our consolidated statementsresults of operations, related to oilfield services performed for Chesapeake-operated wells.
During the 2016 first quarter, we changed the structure of our internal organization to include certain assets in our Exploration and Production reportable segment instead of our Other segment. Accordingly, this change has been reflected through retroactive revision of the segment informationcash flows or financial position had these subsidiaries operated as of December 31, 2015 and 2014, as shown in the tables below.independent entities.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


The following table presents selected financial information for Chesapeake’s operating segments:CONDENSED CONSOLIDATING BALANCE SHEET
AS OF DECEMBER 31, 2019
($ in millions)
  
Exploration
and
Production
 
Marketing,
Gathering
and
Compression 
 Former
Oilfield
Services  
 Other   
Intercompany
Eliminations
 
Consolidated 
Total
  ($ in millions)
Year Ended
December 31, 2016
            
Revenues $3,288
 $8,334
 $
 $
 $(3,750) $7,872
Intersegment revenues 
 (3,750) 
 
 3,750
 
Total revenues $3,288
 $4,584
 $
 $
 $
 $7,872
             
Unrealized losses on commodity derivatives $819
 $
 $
 $
 $
 $819
Unrealized losses on marketing derivatives $
 $297
 $
 $
 $
 $297
Oil, natural gas, NGL and other depreciation, depletion and amortization $1,024
 $45
 $
 $38
 $
 $1,107
Impairment of oil and natural gas properties $2,564
 $
 $
 $
 $
 $2,564
Impairments of fixed assets and other $387
 $220
 $
 $231
 $
 $838
Net gain (loss) on sales of fixed assets $(4) $(7) $
 $(1) $
 $(12)
Interest expense $(303) $
 $
 $7
 $
 $(296)
Losses on investments $
 $
 $
 $(8) $
 $(8)
Impairments of
investments
 $
 $
 $
 $(119) $
 $(119)
Gains on purchases or exchanges of debt $236
 $
 $
 $
 $
 $236
             
Income (Loss) Before
Income Taxes
 $(4,099) $(112) $
 $(378) $
 $(4,589)
Total Assets $11,249
 $1,118
 $
 $1,059
 $(398) $13,028
Capital Expenditures $1,439
 $7
 $
 $
 $
 $1,446
             
  Parent   
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Consolidated
CURRENT ASSETS:          
Cash and cash equivalents $16
 $1
 $5
 $(16) $6
Other current assets 51
 1,090
 104
 
 1,245
Intercompany receivable, net 7,702
 
 
 (7,702) 
Total Current Assets 7,769
 1,091
 109
 (7,718) 1,251
PROPERTY AND EQUIPMENT:          
Oil and natural gas properties at cost,
based on successful efforts accounting, net
 
 9,440
 4,188
 
 13,628
Other property and equipment, net 
 1,030
 88
 
 1,118
Property and equipment
held for sale, net
 
 10
 
 
 10
Total Property and Equipment,
Net
 
 10,480
 4,276
 
 14,756
LONG-TERM ASSETS:          
Other long-term assets 41
 125
 19
 1
 186
Investments in subsidiaries and
intercompany advances
 6,101
 4,171
 
 (10,272) 
TOTAL ASSETS $13,911
 $15,867
 $4,404
 $(17,989) $16,193
           
CURRENT LIABILITIES:          
Current liabilities $466
 $1,765
 $176
 $(15) $2,392
Intercompany payable, net 
 7,702
 
 (7,702) 
Total Current Liabilities 466
 9,467
 176
 (7,717) 2,392
LONG-TERM LIABILITIES:          
Long-term debt, net 9,071
 
 2
 
 9,073
Deferred income tax liabilities 10
 
 
 
 10
Other long-term liabilities 
 299
 18
 
 317
Total Long-Term Liabilities 9,081
 299
 20
 
 9,400
EQUITY:          
Chesapeake stockholders’ equity 4,364
 6,101
 4,171
 (10,272) 4,364
Noncontrolling interests 
 
 37
 
 37
Total Equity 4,364
 6,101
 4,208
 (10,272) 4,401
TOTAL LIABILITIES AND EQUITY $13,911
 $15,867
 $4,404
 $(17,989) $16,193

TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


CONDENSED CONSOLIDATING BALANCE SHEET
AS OF DECEMBER 31, 2018
($ in millions)
  Parent   
Guarantor
Subsidiaries
 
Non-Guarantor
Subsidiaries
 Eliminations Consolidated
CURRENT ASSETS:          
Cash and cash equivalents $4
 $1
 $1
 $(2) $4
Other current assets 60
 1,532
 2
 
 1,594
Intercompany receivable, net 6,671
 
 
 (6,671) 
Total Current Assets 6,735
 1,533
 3
 (6,673) 1,598
PROPERTY AND EQUIPMENT:          
Oil and natural gas properties at cost, based on successful efforts accounting, net 
 9,664
 48
 
 9,712
Other property and equipment, net 
 1,091
 
 
 1,091
Property and equipment
held for sale, net
 
 15
 
 
 15
Total Property and Equipment, Net 
 10,770
 48
 
 10,818
LONG-TERM ASSETS:          
Other long-term assets 26
 293
 
 
 319
Investments in subsidiaries and
intercompany advances
 3,248
 9
 
 (3,257) 
TOTAL ASSETS $10,009
 $12,605
 $51
 $(9,930) $12,735
           
CURRENT LIABILITIES:          
Current liabilities $523
 $2,365
 $1
 $(2) $2,887
Intercompany payable, net 
 6,671
 
 (6,671) 
Total Current Liabilities 523
 9,036
 1
 (6,673) 2,887
LONG-TERM LIABILITIES:          
Long-term debt, net 7,341
 
 
 
 7,341
Other long-term liabilities 53
 321
 
 
 374
Total Long-Term Liabilities 7,394
 321
 
 
 7,715
EQUITY:          
Chesapeake stockholders’ equity 2,092
 3,248
 9
 (3,257) 2,092
Noncontrolling interests 
 
 41
 
 41
Total Equity 2,092
 3,248
 50
 (3,257) 2,133
TOTAL LIABILITIES AND EQUITY $10,009
 $12,605
 $51
 $(9,930) $12,735

  
Exploration
and
Production
 
Marketing,
Gathering
and
Compression 
 Former
Oilfield
Services  
 Other   
Intercompany
Eliminations
 
Consolidated 
Total
  ($ in millions)
Year Ended
December 31, 2015
            
Revenues $5,391
 $11,745
 $
 $
 $(4,372) $12,764
Intersegment revenues 
 (4,372) 
 
 4,372
 
Total revenues $5,391
 $7,373
 $
 $
 $
 $12,764
             
Unrealized losses on commodity derivatives $693
 $
 $
 $
 $
 $693
Unrealized gains on marketing derivatives $
 $(295) $
 $
 $
 $(295)
Oil, natural gas, NGL and other depreciation, depletion and amortization $2,170
 $20
 $
 $39
 $
 $2,229
Impairment of oil and natural gas properties $18,238
 $
 $
 $
 $
 $18,238
Impairments of fixed assets and other $126
 $68
 $
 $
 $
 $194
Net gain (loss) on sales of fixed assets $1
 $1
 $
 $2
 $
 $4
Interest expense $(925) $(4) $
 $6
 $606
 $(317)
Losses on investments $(3) $
 $
 $(93) $
 $(96)
Impairments of investments $
 $
 $
 $(53) $
 $(53)
Gains on purchases or exchanges of debt $279
 $
 $
 $
 $
 $279
      
      
Income (Loss) Before
Income Taxes
 $(19,619) $117
 $
 $(127) $531
 $(19,098)
Total Assets
(as previously reported)
 $11,776
 $1,524
 $
 $4,325
 $(311) $17,314
Total Assets
(as revised)
 $14,610
 $1,524
 $
 $1,491
 $(311) $17,314
Capital Expenditures $3,562
 $42
 $
 $10
 $
 $3,614
             


TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
YEAR ENDED DECEMBER 31, 2019
($ in millions)
  Parent   
Guarantor
Subsidiaries
 
Non-
Guarantor
Subsidiaries
 Eliminations Consolidated
REVENUES AND OTHER:          
Oil, natural gas and NGL $
 $3,760
 $762
 $
 $4,522
Marketing 
 3,967
 
 
 3,967
Total Revenues 
 7,727
 762
 
 8,489
Other 
 60
 3
 
 63
Gains on sales of assets 
 43
 
 
 43
Total Revenues and Other 
 7,830
 765
 
 8,595
OPERATING EXPENSES:          
Oil, natural gas and NGL production 
 436
 84
 
 520
Oil, natural gas and NGL gathering, processing and transportation 
 1,062
 20
 
 1,082
Severance and ad valorem taxes 
 174
 50
 
 224
Exploration 
 77
 7
 
 84
Marketing 
 4,003
 
 
 4,003
General and administrative 1
 237
 77
 
 315
Restructuring and other termination costs 
 12
 
 
 12
Provision for legal contingencies, net 
 19
 
 
 19
Depreciation, depletion and amortization 
 1,719
 545
 
 2,264
Impairments 
 11
 
 
 11
Other operating expense 
 52
 40
 
 92
Total Operating Expenses 1
 7,802
 823
 
 8,626
INCOME (LOSS) FROM OPERATIONS (1) 28
 (58) 
 (31)
OTHER INCOME (EXPENSE):          
Interest income (expense) (598) 16
 (69) 
 (651)
Losses on investments 
 (47) (24) 
 (71)
Gains on purchases or exchanges of debt 65
 
 10
 
 75
Other income 
 39
 
 
 39
Equity in net earnings (losses) of subsidiary (105) (141) 
 246
 
Total Other Expense (638) (133) (83) 246
 (608)
LOSS BEFORE INCOME TAXES (639) (105) (141) 246
 (639)
INCOME TAX BENEFIT (331) 
 
 
 (331)
NET LOSS (308) (105) (141) 246
 (308)
Net income attributable to
noncontrolling interests
 
 
 
 
 
NET LOSS ATTRIBUTABLE
TO CHESAPEAKE
 (308) (105) (141) 246
 (308)
Other comprehensive income 
 35
 
 
 35
COMPREHENSIVE LOSS
ATTRIBUTABLE TO CHESAPEAKE
 $(308) $(70) $(141) $246
 $(273)
  
Exploration
and
Production
 
Marketing,
Gathering
and
Compression 
 Former
Oilfield
Services  
 Other   
Intercompany
Eliminations
 
Consolidated 
Total
  ($ in millions)
Year Ended
December 31, 2014
            
Revenues $10,354
 $20,790
 $1,060
 $30
 $(9,109) $23,125
Intersegment revenues 
 (8,565) (544) 
 9,109
 
Total revenues $10,354
 $12,225
 $516
 $30
 $
 $23,125
             
Unrealized losses on commodity derivatives $(1,394) $
 $
 $
 $
 $(1,394)
Unrealized gains on marketing derivatives $
 $(3) $
 $
 $
 $(3)
Oil, natural gas, NGL and other depreciation, depletion and amortization $2,756
 $38
 $145
 $42
 $(66) $2,915
Impairments of fixed assets and other $22
 $24
 $23
 $19
 $
 $88
Net gain (loss) on sales of fixed assets $(2) $(187) $(8) $(2) $
 $(199)
Interest expense $(709) $(21) $(42) $3
 $680
 $(89)
Losses on investments $2
 $
 $(1) $(76) $
 $(75)
Impairments of investments $
 $
 $(5) $
 $
 $(5)
Net loss on sales of investments $(6) $
 $
 $73
 $
 $67
Gains on purchases or exchanges of debt $(197) $
 $
 $
 $
 $(197)
             
Income (Loss) Before
Income Taxes
 $2,874
 $326
 $(16) $(30) $46
 $3,200
Total Assets
(as previously reported)
 $35,285
 $1,978
 $
 $4,283
 $(891) $40,655
Total Assets
(as revised)
 $38,012
 $1,978
 $
 $1,556
 $(891) $40,655
Capital Expenditures $6,173
 $298
 $158
 $38
 $
 $6,667

TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)


22.Recently Issued Accounting Standards
In May 2014, the FASB issued updated revenue recognition guidance to clarify the principles for recognizing revenue and to develop a common revenue standard for U.S. GAAP and international financial reporting standards. The new standard requires the recognition of revenue to depict the transfer of promised goods to customersCONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
YEAR ENDED DECEMBER 31, 2018
($ in an amount reflecting the consideration the company expects to receive in the exchange. The accounting standards update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, with early application not permitted. In July 2015, the FASB approved a one-year deferral of the effective date as well as permission to early adopt the new revenue recognition standard as of the original effective date. In March 2016, the FASB issued an update clarifying the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued an update clarifying the identification of performance obligations and licensing implementations guidance. In May 2016, the FASB issued an update clarifying guidance in a few narrow areas and added some practical expedients to the guidance. We are evaluating the impact of this guidance on our consolidated financial statements and related disclosures.millions)
In August 2014, the FASB issued updated guidance that requires management, for each annual and interim reporting period, to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the consolidated financial statements are issued. If management concludes that conditions or events raise substantial doubt about the entity’s ability to continue as a going concern, certain disclosures are required to be made within the footnotes to the consolidated financial statements. The amendments in this update are effective for annual periods ending after December 15, 2016, and interim periods thereafter, with early adoption permitted. We adopted this guidance as of December 31, 2016, and it had no impact on our consolidated financial statements and related disclosures.
  Parent   
Guarantor
Subsidiaries
 
Non-
Guarantor
Subsidiaries
 Eliminations Consolidated
REVENUES AND OTHER:          
Oil, natural gas and NGL $
 $5,136
 $19
 $
 $5,155
Marketing 
 5,076
 
 
 5,076
Total Revenues 
 10,212
 19
 
 10,231
Other 
 63
 
 
 63
Losses on sales of assets 
 (264) 
 
 (264)
Total Revenues and Other 
 10,011
 19
 
 10,030
OPERATING EXPENSES:          
Oil, natural gas and NGL production 
 474
 
 
 474
Oil, natural gas and NGL gathering, processing and transportation 
 1,391
 7
 
 1,398
Severance and ad valorem taxes 
 188
 1
 
 189
Exploration 
 162
 
 
 162
Marketing 
 5,158
 
 
 5,158
General and administrative 2
 332
 1
 
 335
Restructuring and other termination costs 
 38
 
 
 38
Provision for legal contingencies, net 
 26
 
 
 26
Depreciation, depletion and amortization 
 1,730
 7
 
 1,737
Impairments 
 131
 
 
 131
Total Operating Expenses 2
 9,630
 16
 
 9,648
INCOME (LOSS) FROM OPERATIONS (2) 381
 3
 
 382
OTHER INCOME (EXPENSE):          
Interest expense (631) (2) 
 
 (633)
Gains on investments 
 139
 
 
 139
Gains on purchases or exchanges of debt 263
 
 
 
 263
Other income 3
 64
 
 
 67
Equity in net earnings of subsidiary 583
 1
 
 (584) 
Total Other Income (Expense) 218
 202
 
 (584) (164)
INCOME BEFORE INCOME TAXES 216
 583
 3
 (584) 218
INCOME TAX BENEFIT (10) 
 
 
 (10)
NET INCOME 226
 583
 3
 (584) 228
Net income attributable to
noncontrolling interests
 
 
 (2) 
 (2)
NET INCOME ATTRIBUTABLE
TO CHESAPEAKE
 226
 583
 1
 (584) 226
Other comprehensive income 
 34
 
 
 34
COMPREHENSIVE INCOME
ATTRIBUTABLE TO CHESAPEAKE
 $226
 $617
 $1
 $(584) $260

In February 2016, the FASB issued updated lease accounting guidance requiring companies to recognize the assets and liabilities for the rights and obligations created by long-term leases of assets on the balance sheet. The accounting standards update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2018. We are evaluating the impact of this guidance on our consolidated financial statements and related disclosures.
In March 2016, the FASB issued guidance for improvements to employee share-based payment accounting to simplify the accounting for share-based compensation. The new standard requires all excess tax benefits and reductions from differences between the deduction for tax purposes and the compensation cost recorded for financial reporting purposes be recognized as income tax expense or benefit in the income statement and not recognized as additional paid-in capital. The new standard also requires all excess tax benefits and deficiencies to be classified as operating activity within the statement of cash flows. For public business entities, the amendments are effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2016. Early adoption is permitted in any interim or annual period, with any adjustments reflected as of the beginning of the fiscal year of adoption. We have elected to early adopt the amendments effective January 1, 2016. The cumulative-effect adjustment to retained earnings for all excess tax benefits not previously recognized as of the beginning period is fully offset by a corresponding change in the valuation allowance resulting in no change to our consolidated financial statements. The implementation of this guidance did not have a material impact on our consolidated financial statements and related disclosures.
In March 2016, the FASB issued new guidance that will result in fewer put or call options embedded in debt instruments qualifying for separate derivative accounting because companies will not be required to assess whether the contingent event, such as change in control or an IPO, is related to interest rates or credit risks. This standard is effective for fiscal years beginning after December 15, 2016, including interim periods within those years. We are evaluating the impact of this guidance on our consolidated financial statements and related disclosures.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

23.Subsequent Events
In January 2017, we purchased and retired approximately $287 million principal amount of our outstanding contingent convertible senior notes and $2 million principal amount of our outstanding senior notes for an aggregate of $286 million pursuant to tender offers.
In JanuaryCONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
YEAR ENDED DECEMBER 31, 2017 we completed private exchanges of an aggregate of approximately 10.0 million shares of our common stock for (i) 150,948 shares of 5.00% Cumulative Convertible Preferred Stock (Series 2005B), (ii) 72,600 shares of 5.75% Cumulative Convertible Preferred Stock and (iii) 12,500 shares of 5.75% Cumulative Convertible Preferred Stock (Series A).
In January 2017, we sold a portion of our acreage and producing properties($ in our Haynesville Shale operating area in northern Louisiana for approximately $450 million, subject to certain customary post-closing adjustments. Included in the sale were approximately 78,000 net acres. The sale also included 250 wells currently producing approximately 30 mmcf of gas per day.millions)
In January 2017, we redeemed our $133 million principal amount of outstanding 6.5% Senior Notes due 2017.
  Parent   
Guarantor
Subsidiaries
 
Non-
Guarantor
Subsidiaries
 Eliminations Consolidated
REVENUES AND OTHER:          
Oil, natural gas and NGL $
 $4,962
 $23
 $
 $4,985
Marketing 
 4,511
 
 
 4,511
Total Revenues 
 9,473
 23
 
 9,496
Other 
 67
 
 
 67
Gains on sales of assets 
 476
 
 
 476
Total Revenues and Other 
 10,016
 23
 
 10,039
OPERATING EXPENSES:          
Oil, natural gas and NGL production 
 517
 
 
 517
Oil, natural gas and NGL gathering, processing and transportation 
 1,463
 8
 
 1,471
Severance and ad valorem taxes 
 133
 1
 
 134
Exploration 
 235
 
 
 235
Marketing 
 4,598
 
 
 4,598
General and administrative 1
 330
 2
 
 333
Provision for legal contingencies, net (79) 41
 
 
 (38)
Depreciation, depletion and amortization 
 1,688
 9
 
 1,697
Impairments 
 814
 
 
 814
Other operating expense 
 416
 
 
 416
Total Operating (Income) Expenses (78) 10,235
 20
 
 10,177
INCOME (LOSS) FROM OPERATIONS 78
 (219) 3
 
 (138)
OTHER INCOME (EXPENSE):          
Interest expense (599) (2) 
 
 (601)
Gains on purchases or exchanges of debt 233
 
 
 
 233
Other income 1
 5
 
 
 6
Equity in net losses of subsidiary (216) 
 
 216
 
Total Other Income (Expense) (581) 3
 
 216
 (362)
INCOME (LOSS) BEFORE INCOME TAXES (503) (216) 3
 216
 (500)
INCOME TAX EXPENSE 2
 
 
 
 2
NET INCOME (LOSS) (505) (216) 3
 216
 (502)
Net income attributable to
noncontrolling interests
 
 
 (3) 
 (3)
NET LOSS ATTRIBUTABLE
TO CHESAPEAKE
 (505) (216) 
 216
 (505)
Other comprehensive income 
 39
 
 
 39
COMPREHENSIVE LOSS
ATTRIBUTABLE TO CHESAPEAKE
 $(505) $(177) $
 $216
 $(466)

In January 2017, we repurchased in the open market approximately $221 million principal amount of our outstanding debt scheduled to mature or that could be put to us in 2018 and 2020 for $224 million.
In February 2017, we reinstated the payment of dividends on each series of our outstanding convertible preferred stock and paid our dividends in arrears.
In February 2017, we sold a portion of our acreage and producing properties in our Haynesville Shale operating area in northern Louisiana for approximately $465 million, subject to certain customary post-closing adjustments. Included in the sale were approximately 41,500 net acres. The sale also included 326 operated and non-operated wells currently producing approximately 50 mmcf of gas per day.
In February 2017, we paid $290 million to assign an oil transportation agreement. This assignment is expected to reduce our future oil transportation commitments by approximately $450 million. The assignment is effective April 1, 2017. In addition, we terminated future natural gas transportation commitments related to divested assets of approximately $110 million for a cash payment of approximately $100 million. This termination was effective March 1, 2017.







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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
YEAR ENDED DECEMBER 31, 2019
($ in millions)
  Parent   
Guarantor
Subsidiaries
 
Non-
Guarantor
Subsidiaries
 Eliminations Consolidated
CASH FLOWS FROM
OPERATING ACTIVITIES:
          
Net Cash Provided By
Operating Activities
 $1
 $1,270
 $356
 $(4) $1,623
           
CASH FLOWS FROM
INVESTING ACTIVITIES:
          
Drilling and completion costs 
 (1,548) (632) 
 (2,180)
Business combination, net 
 (381) 28
 
 (353)
Acquisitions of proved and unproved properties 
 (35) 
 
 (35)
Proceeds from divestitures of proved and unproved properties 
 130
 
 
 130
Additions to other property and equipment 
 (32) (16) 
 (48)
Proceeds from sales of other property and equipment 
 6
 
 
 6
Net Cash Used In
Investing Activities
 
 (1,860) (620) 
 (2,480)
           
CASH FLOWS FROM
FINANCING ACTIVITIES:
          
Proceeds from revolving credit facility borrowings 9,839
 
 837
 
 10,676
Payments on revolving credit facility borrowings (8,668) 
 (1,512) 
 (10,180)
Proceeds from issuance of senior notes, net 108
 
 
 
 108
Proceeds from issuance of term loan, net 1,455
 
 
 
 1,455
Cash paid to purchase debt (380) 
 (693) 
 (1,073)
Cash paid for preferred stock dividends (91) 
 
 
 (91)
Contribution from parent (1,644) 
 1,644
 
 
Other financing activities (24) (8) (8) 4
 (36)
Intercompany advances, net (713) 713
 
 
 
Net Cash Provided By (Used In)
Financing Activities
 (118) 705
 268
 4
 859
Net increase (decrease) in cash and cash equivalents (117) 115
 4
 
 2
Cash and cash equivalents,
beginning of period
 4
 1
 1
 (2) 4
Cash and cash equivalents, end of period $(113) $116
 $5
 $(2) $6

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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
YEAR ENDED DECEMBER 31, 2018
($ in millions)
  Parent   
Guarantor
Subsidiaries
 
Non-
Guarantor
Subsidiaries
 Eliminations Consolidated
CASH FLOWS FROM
OPERATING ACTIVITIES:
          
Net Cash Provided By
Operating Activities
 $85
 $1,642
 $10
 $(7) $1,730
           
CASH FLOWS FROM
INVESTING ACTIVITIES:
          
Drilling and completion costs 
 (1,848) 
 
 (1,848)
Acquisitions of proved and unproved properties 
 (128) 
 
 (128)
Proceeds from divestitures of proved and unproved properties 
 2,231
 
 
 2,231
Additions to other property and equipment 
 (21) 
 
 (21)
Proceeds from sales of other property and equipment 
 147
 
 
 147
Proceeds from sales of investments 
 74
 
 
 74
Net Cash Provided by
Investing Activities
 
 455
 
 
 455
           
CASH FLOWS FROM
FINANCING ACTIVITIES:
          
Proceeds from revolving credit facility borrowings 11,697
 
 
 
 11,697
Payments on revolving credit facility borrowings (12,059) 
 
 
 (12,059)
Proceeds from issuance of senior notes, net 1,236
 
 
 
 1,236
Cash paid to purchase debt (2,813) 
 
 
 (2,813)
Cash paid for preferred stock dividends (92) 
 
 
 (92)
Other financing activities (26) (123) (13) 7
 (155)
Intercompany advances, net 1,971
 (1,974) 2
 1
 
Net Cash Used In
Financing Activities
 (86) (2,097) (11) 8
 (2,186)
Net decrease in cash and cash equivalents (1) 
 (1) 1
 (1)
Cash and cash equivalents,
beginning of period
 5
 1
 2
 (3) 5
Cash and cash equivalents, end of period $4
 $1
 $1
 $(2) $4

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
YEAR ENDED DECEMBER 31, 2017
($ in millions)

  Parent   
Guarantor
Subsidiaries
 
Non-
Guarantor
Subsidiaries
 Eliminations Consolidated
CASH FLOWS FROM
OPERATING ACTIVITIES:
          
Net Cash Provided By
Operating Activities
 $5
 $466
 $14
 $(10) $475
           
CASH FLOWS FROM
INVESTING ACTIVITIES:
          
Drilling and completion costs 
 (2,113) 
 
 (2,113)
Acquisitions of proved and unproved properties 
 (88) 
 
 (88)
Proceeds from divestitures of proved and unproved properties 
 1,249
 
 
 1,249
Additions to other property and equipment 
 (21) 
 
 (21)
Other investing activities 
 55
 
 
 55
Net Cash Used In
Investing Activities
 
 (918) 
 
 (918)
           
CASH FLOWS FROM
FINANCING ACTIVITIES:
          
Proceeds from revolving credit facility borrowings 7,771
 
 
 
 7,771
Payments on revolving credit facility borrowings (6,990) 
 
 
 (6,990)
Proceeds from issuance of senior notes, net 1,585
 
 
 
 1,585
Cash paid to purchase debt (2,592) 
 
 
 (2,592)
Cash paid for preferred stock dividends (183) 
 
 
 (183)
Other financing activities (39) (5) (13) 32
 (25)
Intercompany advances, net (456) 456
 
 
 
Net Cash Provided by (Used In)
Financing Activities
 (904) 451
 (13) 32
 (434)
Net increase (decrease) in cash and cash equivalents (899) (1) 1
 22
 (877)
Cash and cash equivalents,
beginning of period
 904
 2
 1
 (25) 882
Cash and cash equivalents, end of period $5
 $1
 $2
 $(3) $5



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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

26.Subsequent Events
On February 24, 2020, we executed agreements to terminate certain gathering, processing and transportation contracts in exchange for consideration of approximately $70 million, comprised of $54 million in cash and $16 million of linefill inventory.  During the first quarter of 2020, we will recognize a non-recurring $70 million expense related to the contract termination.  Additionally, the contract termination will remove approximately $169 million of future commitments related to gathering, processing and transportation agreements. See Note 6 for further discussion of contingencies and commitments.

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CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
SUPPLEMENTARY INFORMATION




Quarterly Financial Data (unaudited)
Summarized unaudited quarterly financial data for 20162019 and 20152018 are as follows:
2016 First Quarter As Previously Reported 
Adjustment(b)
 
As
Revised
  ($ in millions except per share data)
Total revenues $1,953
 $
 $1,953
Gross profit(a)
 $(952) $(147) $(1,099)
Net loss attributable to Chesapeake $(921) $(147) $(1,068)
Net loss available to common stockholders $(964) $(147) $(1,111)
       
Net loss per common share:      
Basic $(1.44) $(0.21) $(1.65)
Diluted $(1.44) $(0.21) $(1.65)
  
2019
First Quarter
 
2019
Second Quarter
 
2019
Third Quarter
 
2019
Fourth Quarter
  ($ in millions except per share data)
Total revenues $2,196
 $2,386
 $2,087
 $1,926
Income (loss) from operations $(182) $278
 $46
 $(173)
Net income (loss) attributable to
Chesapeake
 $(21) $98
 $(61) $(324)
Net income (loss) available to common stockholders $(44) $75
 $(101) $(346)
         
Net income (loss) per common share:        
Basic $(0.03) $0.05
 $(0.06) $(0.18)
Diluted $(0.03) $0.05
 $(0.06) $(0.18)

2016 Second Quarter As Previously Reported 
Adjustment(b)
 
As
Revised
  ($ in millions except per share data)
Total revenues $1,622
 $
 $1,622
Gross profit(a)
 $(1,757) $(26) $(1,783)
Net loss attributable to Chesapeake $(1,750) $(26) $(1,776)
Net loss available to common stockholders $(1,792) $(26) $(1,818)
       
Net loss per common share:      
Basic $(2.48) $(0.05) $(2.53)
Diluted $(2.48) $(0.05) $(2.53)
  
2018
First Quarter
 
2018
Second Quarter
 
2018
Third Quarter
 
2018
Fourth Quarter
  ($ in millions except per share data)
Total revenues $2,524
 $2,289
 $2,424
 $2,793
Income (loss) from operations $42
 $(160) $82
 $418
Net income (loss) attributable to
Chesapeake
 $17
 $(249) $(146) $604
Net income (loss) available to common stockholders $(6) $(272) $(169) $576
         
Net income (loss) per common share:        
Basic $(0.01) $(0.30) $(0.19) $0.63
Diluted $(0.01) $(0.30) $(0.19) $0.57

2016 Third Quarter As Previously Reported 
Adjustment(b)
 
As
Revised
  ($ in millions except per share data)
Total revenues $2,276
 $
 $2,276
Gross profit(a)
 $(1,174) $(60) $(1,234)
Net loss attributable to Chesapeake $(1,155) $(60) $(1,215)
Net loss available to common stockholders $(1,197) $(60) $(1,257)
       
Net loss per common share:      
Basic $(1.54) $(0.08) $(1.62)
Diluted $(1.54) $(0.08) $(1.62)
2016 Fourth Quarter
  ($ in millions)
Total revenues $2,021
Gross profit(a)
 $(295)
Net loss attributable to Chesapeake $(342)
Net loss available to common stockholders $(740)
   
Net loss per common share: ($ per share)
Basic $(0.83)
Diluted $(0.83)
  
2015
First Quarter
 
2015
Second Quarter
 
2015
Third Quarter
 
2015
Fourth Quarter
  ($ in millions except per share data)
Total revenues $3,218
 $3,521
 $3,376
 $2,649
Gross profit(a)
 $(5,040) $(5,507) $(5,453) $(2,919)
Net loss attributable to
Chesapeake
 $(3,739) $(4,108) $(4,653) $(2,185)
Net loss available to common stockholders $(3,782) $(4,151) $(4,695) $(2,228)
         
Net loss per common share:        
Basic $(5.72) $(6.27) $(7.08) $(3.36)
Diluted $(5.72) $(6.27) $(7.08) $(3.36)

(a)Total revenue less operating expenses. Includes $2.564 billion and $18.238 billion in ceiling test write-downs on our oil and natural gas properties for the years ended December 31, 2016 and 2015, respectively.
(b)During our review of the full cost ceiling test calculation for the fourth quarter of 2016, we identified certain errors to the basis price differentials used in calculating the impairment of oil and natural gas properties and oil, natural gas and NGL depreciation, depletion and amortization for each of the first three interim periods in 2016. We determined that these errors do not relate to periods prior to January 1, 2016.
The impact of the errors was an understatement in the impairment of oil and natural gas properties of $144 million for the quarter ended March 31, 2016, $24 million for the quarter ended June 30, 2016 and $64 million for the quarter ended September 30, 2016. The impact of the error was also an overstatement in the oil, natural gas and NGL depreciation, depletion and amortization of $8 million for the quarter ended March 31, 2016, an understatement of $13 million for the quarter ended June 30, 2016 and an overstatement of $4 million for the quarter ended September 30, 2016. In accordance with Staff Accounting Bulletin No. 99, Materiality, management evaluated the materiality of the errors from qualitative and quantitative perspectives and concluded that the errors are not material to our previously issued interim financial statements. Accordingly, the corrections for these errors and an other immaterial previously identified error is reflected in the table above. The corrections associated with these errors will also be reflected in our 2017 Form 10-Q filings.
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SUPPLEMENTARY INFORMATION - (Continued)



Supplemental Disclosures About Oil, Natural Gas and NGL Producing Activities (unaudited)
Net Capitalized Costs
Capitalized costs related to Chesapeake'sour oil, natural gas and NGL producing activities are summarized as follows:
 December 31, December 31,
 2016 2015 2019 2018
 ($ in millions) ($ in millions)
Oil and oil and natural gas properties:        
Proved $66,451
 $63,843
 $30,765
 $25,407
Unproved 4,802
 6,798
 2,173
 1,561
Total 71,253
 70,641
 32,938
 26,968
Less accumulated depreciation, depletion and amortization (62,094) (58,552) (19,310) (17,256)
Net capitalized costs $9,159
 $12,089
 $13,628
 $9,712
Unproved properties not subject to amortization as of December 31, 20162019 and 2015,2018, consisted mainly of leasehold acquired through direct purchases of significant oil and natural gas property interests. We capitalized approximately $242 million, $410 million and $604 million of interest during 2016, 2015 and 2014, respectively, on significant investments in unproved properties that were not yet included in the amortization base of the full cost pool. We will continue to evaluate our unproved properties, and although the timing of the ultimate evaluation or disposition of the properties cannot be determined, we can expect the majority of our unproved properties not held by production to be transferred into the amortization base over the next five years.
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development
Costs incurred in oil and natural gas property acquisition, exploration and development, activities which have beenincluding capitalized interest and asset retirement costs, are summarized as follows:
 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
Acquisition of Properties:      
Acquisition of Properties(a):
      
Proved properties $403
 $
 $214
 $3,264
 $80
 $23
Unproved properties 403
 454
 1,224
 792
 56
 74
Exploratory costs 52
 112
 421
 42
 80
 22
Development costs 1,312
 2,941
 4,204
 2,177
 1,954
 2,075
Costs incurred(b)
 $2,170
 $3,507
 $6,063
 $6,275
 $2,170
 $2,194

(a)ExploratoryIncludes $3.264 billion and development costs are net$756 million of $51 millionproved and $679 millionunproved property acquisitions, respectively, related to our acquisition of WildHorse in drilling and completion carries received from our joint venture partners during 2015 and 2014, respectively.
(b)Includes capitalized interest and asset retirement obligations as follows:2019.
Capitalized interest $242
 $410
 $604
Asset retirement obligations $(57) $(15) $39
In 2016, we invested approximately $312 million, to convert 118 mmboe of PUDs to proved developed reserves.
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SUPPLEMENTARY INFORMATION - (Continued)



Results of Operations from Oil, Natural Gas and NGL Producing Activities
Chesapeake'sOur results of operations from oil, natural gas and NGL producing activities are presented below for 2016, 20152019, 2018 and 2014.2017. The following table includes revenues and expenses associated directly with our oil, natural gas and NGL producing activities. It does not include any interest costs or indirect general and administrative costs and, therefore, is not necessarily indicative of the contribution to consolidated net operating results of our oil, natural gas and NGL operations.
 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
Oil, natural gas and NGL sales $3,288
 $5,391
 $10,354
 $4,522
 $5,155
 $4,985
Other revenue 63
 63
 67
Oil, natural gas and NGL production expenses (710) (1,046) (1,208) (520) (474) (517)
Oil, natural gas and NGL gathering, processing and
transportation expenses
 (1,855) (2,119) (2,174) (1,082) (1,398) (1,471)
Production taxes (74) (99) (232)
Severance and ad valorem taxes (224) (189) (134)
Exploration (84) (162) (235)
Depletion and depreciation (2,188) (1,665) (1,615)
Impairment of oil and natural gas properties (2,564) (18,238) 
 (8) (78) (809)
Depletion and depreciation (1,003) (2,099) (2,683)
Imputed income tax provision(a)
 1,027
 6,683
 (1,485) (125) (326) (107)
Results of operations from oil, natural gas and NGL producing
activities
 $(1,891) $(11,527) $2,572
 $354
 $926
 $164

(a)The imputed income tax provision is hypothetical (at the statutory tax rate) and determined without regard to our deduction for general and administrative expenses, interest costs and other income tax credits and deductions, nor whether the hypothetical tax provision (benefit) will be payable (receivable).
Oil, Natural Gas and NGL Reserve Quantities
Chesapeake'sOur petroleum engineers and independent petroleum engineering firmsfirm estimated all of our proved reserves as of December 31, 2016, 20152019, 2018 and 2014. Independent2017. Our independent petroleum engineering firmsfirm, Software Integrated Solutions, Division of Schlumberger Technology Corporation, estimated an aggregate of 70%81%, 59%80% and 79%83% of our estimated proved reserves (by volume) as of December 31, 2016, 20152019, 2018 and 2014, respectively, as set forth below.
  December 31,
  2016 2015 2014
Ryder Scott Company, L.P. —%36% 54%
Software Integrated Solutions, Division of Schlumberger Technology Corporation 70%23% 25%
2017.
Proved oil, natural gas and NGL reserves are those quantities of oil, natural gas and NGL 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. Existing economic conditions include prices and costs at which economic producibility from a reservoir is to be determined. Based on reserve reporting rules, the price is calculated using the average price 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 the period, unless prices are defined by contractual arrangements, excluding escalations based upon future conditions. A project to extract hydrocarbons must have commenced or the operator must be reasonably certain that it will commence the project within a reasonable time. The area of the reservoir considered as proved includes: (i) the area identified by drilling and limited by fluid contacts, if any, and (ii) 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 natural gas on the basis of available geoscience and engineering data. 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 establish a lower contact with reasonable certainty. Where direct observation from well penetrations has defined a
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SUPPLEMENTARY INFORMATION – (Continued)


highest known oil elevation and the potential exists for an associated natural 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. Reserves which can be produced
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economically through application of improved recovery techniques (including, but not limited to, fluid injection) are included in the proved classification when: (i) 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 (ii) the project has been approved for development by all necessary parties and entities, including governmental entities.
Developed oil, natural gas and NGL reserves are reserves of any category that can be expected to be recovered through existing wells with existing equipment and operating methods where production can be initiated or restored with relatively low expenditure compared to the cost of drilling a new well.
The information provided below on our oil, natural gas and NGL reserves is presented in accordance with regulations prescribed by the SEC. Our reserve estimates are generally based upon extrapolation of historical production trends, analogy to similar properties and volumetric calculations. Accordingly, these estimates will change as future information becomes available and as commodity prices change. These changes could be material and could occur in the near term.
Presented below is a summary of changes in estimated reserves for 2016, 20152019, 2018 and 2014.2017:
 Oil Gas NGL Total Oil Natural Gas NGL Total
 (mmbbl) (bcf) (mmbbl) (mmboe) (mmbbl) (bcf) (mmbbl) (mmboe)
December 31, 2016        
December 31, 2019        
Proved reserves, beginning of period 313.7
 6,041
 183.5
 1,504
 215.5
 6,777
 103.3
 1,448
Extensions, discoveries and other additions 191.2
 1,798
 89.0
 580
 52.2
 897
 13.9
 216
Revisions of previous estimates (58.9) 598
 2.8
 43
 (40.9) (516) (15.8) (143)
Production (33.2) (1,050) (24.4) (233) (43.0) (728) (12.3) (177)
Sale of reserves-in-place (14.7) (1,190) (28.1) (241) (1.8) (23) (1.4) (7)
Purchase of reserves-in-place 1.0
 299
 3.6
 55
 176.0
 159
 32.3
 235
Proved reserves, end of period(a)
 399.1
 6,496
 226.4
 1,708
 358.0
 6,566
 120.0
 1,572
Proved developed reserves:                
Beginning of period 215.6
 5,329
 158.0
 1,262
 127.6
 3,314
 67.9
 748
End of period 200.4
 5,126
 134.1
 1,189
 201.4
 3,377
 82.1
 846
Proved undeveloped reserves:                
Beginning of period 98.1
 712
 25.5
 242
 87.9
 3,463
 35.4
 700
End of period(b)(a)
 198.7
 1,370
 92.2
 519
 156.6
 3,189
 37.9
 726
                
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SUPPLEMENTARY INFORMATION - (Continued)



  Oil Natural Gas NGL Total
  (mmbbl) (bcf) (mmbbl) (mmboe)
December 31, 2018        
Proved reserves, beginning of period 260.2
 8,600
 218.6
 1,912
Extensions, discoveries and other additions 56.3
 1,162
 19.8
 270
Revisions of previous estimates (30.5) 242
 5.4
 15
Production (32.7) (832) (18.9) (190)
Sale of reserves-in-place (37.8) (2,395) (121.6) (559)
Purchase of reserves-in-place 
 
 
 
Proved reserves, end of period 215.5
 6,777
 103.3
 1,448
Proved developed reserves:        
Beginning of period 150.9
 4,980
 135.0
 1,116
End of period 127.6
 3,314
 67.9
 748
Proved undeveloped reserves:        
Beginning of period 109.3
 3,620
 83.6
 796
End of period(a)
 87.9
 3,463
 35.4
 700
         
December 31, 2017        
Proved reserves, beginning of period 399.1
 6,496
 226.4
 1,708
Extensions, discoveries and other additions 62.7
 3,694
 44.9
 723
Revisions of previous estimates (168.1) (315) (31.0) (252)
Production (32.7) (878) (20.9) (200)
Sale of reserves-in-place (0.9) (418) (0.8) (71)
Purchase of reserves-in-place 0.1
 21
 
 4
Proved reserves, end of period 260.2
 8,600
 218.6
 1,912
Proved developed reserves:        
Beginning of period 200.4
 5,126
 134.2
 1,189
End of period 150.9
 4,980
 135.0
 1,116
Proved undeveloped reserves:        
Beginning of period 198.7
 1,370
 92.2
 519
End of period(a)
 109.3
 3,620
 83.6
 796
___________________________________________
  Oil Gas NGL Total
  (mmbbl) (bcf) (mmbbl) (mmboe)
December 31, 2015        
Proved reserves, beginning of period 420.8
 10,692
 266.3
 2,469
Extensions, discoveries and other additions 61.1
 805
 35.3
 231
Revisions of previous estimates (110.0) (4,191) (75.8) (885)
Production (41.6) (1,070) (28.0) (248)
Sale of reserves-in-place (16.6) (195) (14.3) (63)
Purchase of reserves-in-place 
 
 
 
Proved reserves, end of period(c)
 313.7
 6,041
 183.5
 1,504
Proved developed reserves:        
Beginning of period 229.3
 8,615
 198.5
 1,864
End of period 215.6
 5,329
 158.0
 1,262
Proved undeveloped reserves:        
Beginning of period 191.5
 2,077
 67.8
 605
End of period(b)
 98.1
 712
 25.5
 242
         
December 31, 2014        
Proved reserves, beginning of period 423.8
 11,734
 299.0
 2,678
Extensions, discoveries and other additions 108.6
 1,567
 78.2
 448
Revisions of previous estimates (51.1) (129) 21.3
 (51)
Production (42.3) (1,095) (33.1) (258)
Sale of reserves-in-place (23.3) (1,421) (101.7) (362)
Purchase of reserves-in-place 5.1
 36
 2.6
 14
Proved reserves, end of period(d)
 420.8
 10,692
 266.3
 2,469
Proved developed reserves:        
Beginning of period 201.3
 8,584
 177.1
 1,809
End of period 229.3
 8,615
 198.5
 1,864
Proved undeveloped reserves:        
Beginning of period 222.5
 3,150
 121.9
 869
End of period(b)
 191.5
 2,077
 67.8
 605

(a)Includes 1 mmbbl of oil, 23 bcf of natural gas and 2 mmbbls of NGL reserves owned by the Chesapeake Granite Wash Trust, 1 mmbbl of oil, 12 bcf of natural gas and 1 mmbbl of NGL of which are attributable to the noncontrolling interest holders.
(b)As of December 31, 2016, 20152019, 2018 and 2014,2017, there were no PUDs that had remained undeveloped for five years or more.
(c)Includes 1 mmbbl of oil, 32 bcf of natural gas and 3 mmbbls of NGL reserves owned by the Chesapeake Granite Wash Trust, 1 mmbbl of oil, 16 bcf of natural gas and 2 mmbbls of NGL of which are attributable to the noncontrolling interest holders.
(d)Includes 2 mmbbls of oil, 46 bcf of natural gas and 5 mmbbls of NGL reserves owned by the Chesapeake Granite Wash Trust, 1 mmbbl of oil, 22 bcf of natural gas and 2 mmbbls of NGL of which are attributable to the noncontrolling interest holders.

TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
SUPPLEMENTARY INFORMATION – (Continued)


During 2016,2019, we sold 241acquired 235 mmboe primarily related to the acquisition of proved reserves for approximately $898 million.WildHorse. We recorded extensions and discoveries of 580216 mmboe, primarily related to undeveloped well additions located in the UticaMarcellus and Eagle Ford.Brazos Valley operating areas. In addition, we recorded upward revisions of 113 mmboe due to changes in previous estimates resulting from improved drilling and operating efficiencies, which includes the impact from lower operating and capital costs, partially offset by downward revisions of 70110 mmboe which were primarily the result ofdue to lower oil, natural gas and NGL prices in 2016.2019, and downward revisions of 33 mmboe due to ongoing portfolio evaluation including lateral length adjustments, performance and updates to our five-year development plan. The oil and natural gas prices used in computing our reserves as of December 31, 2016,2019, were $42.75$55.69 per bbl and $2.49$2.58 per mcf, respectively, before price differentials.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
SUPPLEMENTARY INFORMATION - (Continued)

During 2015,2018, we sold 63559 mmboe of proved reserves for approximately $97 million plus$1.8 billion primarily in the cancellation of all of CHK C-T’s outstanding preferred shares. See Note 12 to our consolidated financial statements included in Item 8 of this report for further discussion of oilUtica and natural gas property transactions.Mid-Continent. We recorded downwardextensions and discoveries of 270 mmboe, primarily related to undeveloped well additions located in Marcellus and Powder River Basin operating areas. In addition, we recorded upward revisions of 88528 mmboe which was comprised of a 1,098 mmboe decrease, resulting primarily from lowerdue to higher oil, natural gas and NGL prices in 2015,2018 partially offset by 213downward revisions of 13 mmboe of upward revisions resulting from changes in previous estimates.due to ongoing portfolio evaluation including longer lateral and spacing adjustments. The oil and natural gas prices used in computing our reserves as of December 31, 2015,2018, were $50.28$65.56 per bbl and $2.58$3.10 per mcf, respectively, before price differentials.
During 2014,2017, we acquired approximately 14recorded extensions and discoveries of 723 mmboe of proved reserves through purchases of oilprimarily in the Gulf Coast, Marcellus and natural gas properties for consideration of $168 million,Utica due to longer lateral, successful drilling and we sold 362 mmboe of proved reserves for approximately $4.7 billion.additional allocated capital in our 5-year development plan. We recorded a downward revisionsrevision of 51327 mmboe including a 78 mmboe reduction infrom previous estimates due to an updated development plan in the Eagle Ford aligning up-spacing, our activity schedule and well performance. Additionally, PUDs were removed from properties in the Mid-Continent in the process of being divested. As of December 31, 2017, we did not have sufficient technical data to estimate the impact of enhanced completion techniques in Eagle Ford. The downward revision was partially offset by a 27 mmboe increase, primarily the result of higherimproved oil, natural gas and NGL prices in 2014.2017 resulting in a 75 mmboe upward revision. The oil and natural gas prices used in computing our reserves as of December 31, 2014,2017, were $94.98$51.34 per bbl and $4.35$2.98 per mcf, respectively, before price differentials. Including the effect of price differential adjustments, the prices used in computing our reserves as of December 31, 2014 were $89.09 per barrel of oil, $2.68 per mcf of natural gas and $24.10 per barrel of NGL.
Standardized Measure of Discounted Future Net Cash Flows
Accounting Standards Codification Topic 932 prescribes guidelines for computing a standardized measure of future net cash flows and changes therein relating to estimated proved reserves. Chesapeake has followed these guidelines which are briefly discussed below.
Future cash inflows and future production and development costs as of December 31, 2016, 20152019, 2018 and 20142017 were determined by applying the average of the first-day-of-the-month prices for the 12 months of the year and year-end costs to the estimated quantities of oil, natural gas and NGL to be produced. Actual future prices and costs may be materially higher or lower than the prices and costs used. For each year, estimates are made of quantities of proved reserves and the future periods during which they are expected to be produced based on continuation of the economic conditions applied for that year. Estimated future income taxes are computed using current statutory income tax rates including consideration of the current tax basis of the properties and related carryforwards, giving effect to permanent differences and tax credits. The resulting future net cash flows are reduced to present value amounts by applying a 10% annual discount factor.
The assumptions used to compute the standardized measure are those prescribed by the Financial Accounting Standards Board and do not necessarily reflect our expectations of actual revenue to be derived from those reserves nor their present worth. The limitations inherent in the reserve quantity estimation process, as discussed previously, are equally applicable to the standardized measure computations since these estimates reflect the valuation process.
TABLE OF CONTENTS
CHESAPEAKE ENERGY CORPORATION AND SUBSIDIARIES
SUPPLEMENTARY INFORMATION - (Continued)



The following summary sets forth our future net cash flows relating to proved oil, natural gas and NGL reserves based on the standardized measure:
 Years Ended December 31,  Years Ended December 31, 
 2016 2015 2014  2019 2018 2017 
 ($ in millions)  ($ in millions) 
Future cash inflows $19,835
(a) 
$20,247
(b) 
$72,557
(c) 
 $29,857
(a) 
$27,312
(b) 
$26,412
(c) 
Future production costs (6,800) (7,391) (17,036)  (6,956) (5,946) (7,044) 
Future development costs (3,621) (1,518) (7,556)  (5,757) (4,032) (4,977) 
Future income tax provisions (79) (228) (12,494)  (75) (331) 
 
Future net cash flows 9,335
 11,110
 35,471
  17,069
 17,003
 14,391
 
Less effect of a 10% discount factor (4,956) (6,417) (18,338)  (8,069) (7,508) (6,901) 
Standardized measure of discounted future net cash flows(d)
 $4,379
 $4,693
 $17,133
  $9,000
 $9,495
 $7,490
 

(a)Calculated using prices of $42.75$55.69 per bbl of oil and $2.49$2.58 per mcf of natural gas, before field differentials.
(b)Calculated using prices of $50.28$65.56 per bbl of oil and $2.58$3.10 per mcf of natural gas, before field differentials.
(c)Calculated using prices of $94.98$51.34 per bbl of oil and $4.35$2.98 per mcf of natural gas, before field differentials.
(d)
Excludes discounted future net cash inflows attributable to production volumes sold to VPP buyers and includes future cash outflows attributable to the costs of production.buyers. See Note 12.7.
The principal sources of change in the standardized measure of discounted future net cash flows are as follows:
 Years Ended December 31, Years Ended December 31,
 2016 2015 2014 2019 2018 2017
 ($ in millions) ($ in millions)
Standardized measure, beginning of period(a)
 $4,693
 $17,133
 $17,390
 $9,495
 $7,490
 $4,379
Sales of oil and natural gas produced, net of production costs and gathering, processing and transportation(b)
 (1,227) (1,503) (5,722) (2,691) (3,128) (2,452)
Net changes in prices and production costs (1,210) (18,070) (634) (3,457) 3,317
 3,977
Extensions and discoveries, net of production and
development costs
 1,042
 1,005
 5,156
 991
 1,666
 1,951
Changes in estimated future development costs 323
 3,198
 1,946
 366
 1,113
 614
Previously estimated development costs incurred during the period 664
 873
 1,178
 775
 973
 775
Revisions of previous quantity estimates 145
 (3,472) (715) (793) 47
 (1,255)
Purchase of reserves-in-place 394
 1
 215
 3,435
 
 3
Sales of reserves-in-place 13
 (938) (1,788) (57) (2,052) (116)
Accretion of discount 473
 2,201
 2,168
 953
 749
 441
Net change in income taxes (8) 4,845
 (593) 17
 (32) 26
Changes in production rates and other (923) (580) (1,468) (34) (648) (853)
Standardized measure, end of period(d)(a)
 $4,379
 $4,693
 $17,133
 $9,000
 $9,495
 $7,490

(a)The impact of cash flow hedges has not been included in any of the periods presented.
(b)ExcludingExcludes gains (losses)and losses on derivatives.
(c)Effect of noncontrolling interest of the Chesapeake Granite Wash Trust is immaterial.
(d)The standardized measure of discounted future net cash flows does not include estimated future cash inflows attributable to future production of VPP volumes sold and does include estimated future cash outflows attributable to the costs of future production of VPP volumes sold.
TABLE OF CONTENTS


ITEM 9.Changes In and Disagreements with Accountants on Accounting and Financial Disclosure
Not applicable.
ITEM 9A.Controls and Procedures
Evaluation of Disclosure Controls and Procedures
We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in reports we file or submit under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to management, including our principal executive and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure.
As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of Chesapeake’sour disclosure controls and procedures pursuant to Exchange Act Rule 13a-15(b). Based on that evaluation, our Chief Executive Officer and our Chief Financial Officer concluded as of December 31, 2019 that our disclosure controls and procedures were not effective as of December 31, 2016 because of the material weakness in our internal control over financial reporting described in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8 of Part II of this Annual Report on Form 10-K.effective.
Our Chief Executive Officer and Chief Financial Officer also determined that the material weakness existed at March 31, 2016, June 30, 2016, and September 30, 2016 and therefore, they also concluded that we did not maintain effective disclosure controls and procedures as of those dates. Notwithstanding such material weakness in internal control over financial reporting, our Chief Executive Officer and Chief Financial Officer have concluded that the unaudited condensed consolidated financial statements included in the Form 10-Q filings for reporting periods ended March 31, 2016, June 30, 2016, and September 30, 2016 present fairly, in all material respects, our financial position, results of operations and cash flows for the periods presented in conformity with accounting principles generally accepted in the United States.
Remediation Plan for the Material Weakness
Our management is actively engaged in the planning for, and implementation of, remediation efforts to address the material weakness identified. Specifically, our management is in the process of implementing a control related to reviewing the configuration of the basis price differential calculations, including a control activity to verify any subsequent changes are appropriately reviewed and that the interface control is designed to validate the data at an appropriately disaggregated level. Our management believes that these actions will remediate the material weakness in internal control over financial reporting described in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8 of Part II of this Annual Report on Form 10-K.
Changes in Internal Control Over Financial Reporting
There were no changes in our internal control over financial reporting that occurred during the quarter ended December 31, 2016, which2019 that have materially affected, or wereare reasonably likely to materially affect, our internal control over financial reporting.
Management’s Report on Internal Control Over Financial Reporting
Management’s Report on Internal Control Over Financial Reporting is set forth in Item 8 of Part II of this Annual Report on Form 10-K.
ITEM 9B.Other Information
Not applicable.

PART III
ITEM 10.Directors, Executive Officers and Corporate Governance
The names of executive officers and certain other senior officers of the Company and their ages, titles and biographies as of the date hereof are incorporated by reference from Item 1 of Part I of this report. The other information called for by this Item 10 is incorporated herein by reference to the definitive proxy statement to be filed by Chesapeake pursuant to Regulation 14A of the General Rules and Regulations under the Securities Exchange Act of 1934 not later than April 30, 20172020 (the 20172020 Proxy Statement).
ITEM 11.Executive Compensation
The information called for by this Item 11 is incorporated herein by reference to the 20172020 Proxy Statement.
ITEM 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
The information called for by this Item 12 is incorporated herein by reference to the 20172020 Proxy Statement.
ITEM 13.Certain Relationships and Related Transactions and Director Independence
The information called for by this Item 13 is incorporated herein by reference to the 20172020 Proxy Statement.
ITEM 14.Principal Accountant Fees and Services
The information called for by this Item 14 is incorporated herein by reference to the 20172020 Proxy Statement.

PART IV
ITEM 15.Exhibits and Financial Statement Schedules

(a)The following financial statements, financial statement schedules and exhibits are filed as a part of this report:
1.
Financial Statements. Chesapeake's consolidated financial statements are included in Item 8 of Part II of this report. Reference is made to the accompanying Index to Financial Statements.
2.
Financial Statement Schedules. No financial statement schedules are applicable or required.
3.
Exhibits. The exhibits listed below in the Index of Exhibits (following the signatures page) are filed, furnished or incorporated by reference pursuant to the requirements of Item 601 of Regulation S-K.

INDEX OF EXHIBITS
    Incorporated by Reference  
Exhibit
Number
 Exhibit Description Form 
SEC File
Number
 Exhibit Filing Date 
Filed or
Furnished
Herewith
2.1  10-Q 001-13726 2.1 10/30/2018  
             
2.2.1*  8-K 001-13726 2.1 10/30/2018  
             
2.2.2  S-4/A 333-228679 Annex A 12/19/2018  
             
3.1.1  10-K 001-13726 3.1.1 2/27/2019  
             
3.1.2  10-Q 001-13726 3.1.4 11/10/2008  
             
3.1.3  10-Q 001-13726 3.1.6 8/11/2008  
             
3.1.4  8-K 001-13726 3.2 5/20/2010  
             
3.1.5  10-Q 001-13726 3.1.5 8/9/2010  
             
3.2  8-K 001-13726 3.2 6/19/2014  
             
4.1**  8-K 001-13726 4.1.1 11/15/2005  
     ��       


4.2.1**  S-3 333-168509 4.1 8/3/2010  
             
4.2.2  8-A 001-13726 4.3 9/24/2010  
             
4.2.3  8-A 001-13726 4.2 2/22/2011  
             
4.2.4  S-3 333-168509 4.17 3/18/2013  
             
4.2.5  8-A 001-13726 4.3 4/8/2013  
             
4.2.6  8-A 001-13726 4.4 4/8/2013  
             
4.3.1**  8-K 001-13726 4.1 4/29/2014  
             
4.3.2  8-K 001-13726 4.3 4/29/2014  
             
4.4.1  8-K 001-13726 10.1 9/12/2018  
             
4.4.2  8-K 001-13726 10.1 2/1/2019  
             
4.4.3  8-K 001-13726 10.1 12/4/2019  
             

4.4.4  8-K 001-13726 10.1 12/27/2019  
             
4.5  8-K 001-13726 10.1 12/23/2015  
             
4.6  8-K 001-13726 10.2 12/23/2015  
             
4.7  8-K 001-13726 4.1 10/5/2016  
             
4.8  8-K 001-13726 4.2 12/20/2016  
             
4.9  8-K 001-13726 4.2 6/7/2017  
             
4.10  8-K 001-13726 4.2 9/27/2018  
             
4.11  8-K 001-13726 4.3 9/27/2018  
             
4.12  8-K 001-13726 4.2 4/5/2019  
             
4.13  8-K 001-13726 4.4 4/5/2019  
             
4.14.1  8-K 001-37964 4.1 2/1/2017  
             
4.14.2  10-Q 001-37964 4.6 8/10/2017  
             

4.14.3  10-K 001-37964 4.6 3/12/2018  
             
4.14.4  10-Q 001-37964 4.6 8/9/2018  
             
4.14.5  8-K 001-13726 4.1 2/1/2019  
             
4.14.6  8-K 001-13726 4.5 12/26/2019  
             
4.15.1  8-K 001-13726 4.1 12/26/2019  
             
4.15.2  8-K 001-13726 4.2 12/26/2019  
             
4.16  8-K 001-13726 4.3 12/26/2019  
             
4.17  8-K 001-13726 4.4 12/26/2019  
             
4.18          X
             
10.1.1†  8-K 001-13726 10.1 6/20/2013  
             
10.1.2†  8-K 001-13726 10.1 2/4/2013  
             
10.2.1†
  10-K 001-13726 10.3 2/25/2016  
             

10.2.2†

10-K001-1372610.3.22/27/2019
10.3.1†

10-K001-1372610.163/1/2013
10.3.2†10-K001-1372610.3.23/3/2017
10.4.1†

8-K001-1372610.15/23/2013
10.4.2†8-K001-1372610.16/17/2016
10.4.3†8-K001-1372610.11/4/2019
10.4.4†10-Q001-1372610.18/1/2018
10.5†

8-K001-1372610.21/4/2019
10.6†

8-K001-1372610.31/4/2019
10.7†

8-K001-1372610.41/4/2019
10.8†10-K001-1372610.102/27/2019
10.9†10-K001-1372610.112/27/2019
10.10†8-K001-1372610.36/27/2012
10.11†DEF 14A001-13726Exhibit G5/3/2013
10.12.1†10-Q001-1372610.18/3/2017
10.12.2†10-Q001-1372610.28/6/2014
10.12.3†10-Q001-1372610.38/6/2014

10.12.4†  10-Q 001-13726 10.4 8/6/2014  
             
10.12.5†  10-Q 001-13726 10.10 5/9/2019  
             
10.12.6†  10-Q 001-13726 10.6 8/6/2014  
             
10.13  8-K 001-13726 10.3 10/30/2018  
             
10.14  8-K 001-13726 10.1 12/26/2019  
             
10.15  8-K 001-13726 10.2 12/26/2019  
             
10.16  8-K 001-13726 10.3 12/26/2019  
             
21          X
             
23.1          X
             
23.2          X
             
31.1          X
             
31.2          X
             
32.1          X
             
32.2          X
             
95.1          X
             

99.1X
101 INSInline XBRL Instance Document.X
101 SCHInline XBRL Taxonomy Extension Schema Document.X
101 CALInline XBRL Taxonomy Extension Calculation Linkbase Document.X
101 DEFInline XBRL Taxonomy Extension Definition Linkbase Document.X
101 LABInline XBRL Taxonomy Extension Labels Linkbase Document.X
101 PREInline XBRL Taxonomy Extension Presentation Linkbase Document.X
104Cover Page Interactive Data file - the Cover Page Interactive Data File does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
*Schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The registrant hereby undertakes to furnish supplemental copies of any of the omitted schedules upon request by the SEC.
**The Company agrees to furnish a copy of any of its unfiled long-term debt instruments to the Securities and Exchange Commission upon request.
Management contract or compensatory plan or arrangement.
††

Confidential treatment has been requested for portions of this exhibit. These portions have been omitted and submitted separately to the Securities and Exchange Commission.
PLEASE NOTE: Pursuant to the rules and regulations of the Securities and Exchange Commission, we have filed or incorporated by reference the agreements referenced above as exhibits to this Annual Report on Form 10-K. The agreements have been filed to provide investors with information regarding their respective terms. The agreements are not intended to provide any other factual information about Chesapeake Energy Corporation or its business or operations. In particular, the assertions embodied in any representations, warranties and covenants contained in the agreements may be subject to qualifications with respect to knowledge and materiality different from those applicable to investors and may be qualified by information in confidential disclosure schedules not included with the exhibits. These disclosure schedules may contain information that modifies, qualifies and creates exceptions to the representations, warranties and covenants set forth in the agreements. Moreover, certain representations, warranties and covenants in the agreements may have been used for the purpose of allocating risk between the parties, rather than establishing matters as facts. In addition, information concerning the subject matter of the representations, warranties and covenants may have changed after the date of the respective agreement, which subsequent information may or may not be fully reflected in our public disclosures. Accordingly, investors should not rely on the representations, warranties and covenants in the agreements as characterizations of the actual state of facts about Chesapeake Energy Corporation or its business or operations on the date hereof.

ITEM 16.Form 10-K Summary
Not applicable.

Signatures
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 CHESAPEAKE ENERGY CORPORATION
    
Date: March 3, 2017February 27, 2020By: /s/ ROBERT D. LAWLER      
   Robert D. Lawler
   President and Chief Executive Officer
POWER OF ATTORNEY
Each person whose signature appears below constitutes and appoints Robert D. Lawler and Domenic J. Dell'Osso, Jr., and each of them, either one of whom may act without joinder of the other, his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any or all amendments to this Annual Report on Form 10-K, and to file the same, with all, exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said 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 in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, and each of them, or the substitute or substitutes of any or all of them, may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
Signature Capacity Date
/s/ ROBERT D. LAWLER 
President and Chief Executive Officer
(Principal Executive Officer)
 March 3, 2017February 27, 2020
Robert D. Lawler
     
/s/ DOMENIC J. DELL'OSSO, JR. 
Executive Vice President
and Chief Financial Officer
(Principal Financial Officer)
 March 3, 2017February 27, 2020
Domenic J. Dell'Osso, Jr.
     
 /s/ MICHAEL A. JOHNSONWILLIAM M. BUERGLER 
Senior Vice President – Accounting, Controller
and Chief Accounting Officer
(Principal Accounting Officer)
 March 3, 2017February 27, 2020
Michael A. JohnsonWilliam M. Buergler
     
/s/ R. BRAD MARTIN Chairman of the Board March 3, 2017February 27, 2020
R. Brad Martin
/s/ ARCHIE W. DUNHAMDirector and Chairman EmeritusMarch 3, 2017
Archie W. Dunham
     
/s/ GLORIA R. BOYLAND Director March 3, 2017February 27, 2020
Gloria R. Boyland
     
/s/ LUKE R. CORBETT Director March 3, 2017February 27, 2020
Luke R. Corbett
  
/s/ MARK A. EDMUNDSDirectorFebruary 27, 2020
Mark A. Edmunds
/s/ LESLIE S. KEATINGDirectorFebruary 27, 2020
Leslie S. Keating
     
/s/ MERRILL A. MILLER, JR. Director March 3, 2017February 27, 2020
Merrill A. Miller, Jr.
     
/s/ THOMAS L. RYAN Director March 3, 2017February 27, 2020
Thomas L. Ryan







INDEX OF EXHIBITS

    Incorporated by Reference  
Exhibit
Number
 Exhibit Description Form 
SEC File
Number
 Exhibit Filing Date 
Filed or
Furnished
Herewith
2.1.1* Purchase and Sale Agreement by and between Chesapeake Appalachia, L.L.C. and Southwestern Energy Production Company dated October 14, 2014. 10-K 001-13726 2.1.1 2/27/2015  
             
2.1.2* Amendment to Purchase and Sale Agreement by and between Chesapeake Appalachia, L.L.C. and SWN Production Company, LLC (formerly Southwestern Energy Production Company) dated December 22, 2014. 10-K 001-13726 2.1.2 2/27/2015  
             
2.1.3 Settlement Agreement by and between Chesapeake Appalachia, L.L.C. and SWN Production Company, LLC (formerly Southwestern Energy Production Company) dated December 22, 2014. 10-K 001-13726 2.1.3 2/27/2015  
             
3.1.1 Chesapeake’s Restated Certificate of Incorporation. 10-Q 001-13726 3.1.1 8/6/2014  
             
3.1.2 Certificate of Amendment to Restated Certificate of Incorporation. 8-K 001-13726 3.1.2 5/20/2016  
             
3.1.3 Certificate of Designation of 5% Cumulative Convertible Preferred Stock (Series 2005B), as amended. 10-Q 001-13726 3.1.4 11/10/2008  
             
3.1.4 Certificate of Designation of 4.5% Cumulative Convertible Preferred Stock, as amended. 10-Q 001-13726 3.1.6 8/11/2008  
             
3.1.5 Certificate of Designation of 5.75% Cumulative Non-Voting Convertible Preferred Stock (Series A). 8-K 001-13726 3.2 5/20/2010  
             
3.1.6 Certificate of Designation of 5.75% Cumulative Non-Voting Convertible Preferred Stock, as amended. 10-Q 001-13726 3.1.5 8/9/2010  
             
3.2 Chesapeake’s Amended and Restated Bylaws. 8-K 001-13726 3.2 6/19/2014  
             
4.1** Indenture dated as of November 8, 2005 among Chesapeake, as issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors and The Bank of New York Mellon Trust Company, N.A., as Trustee, with respect to 6.875% Senior Notes due 2020. 8-K 001-13726 4.12.1 11/15/2005  
             
4.2** Indenture dated as of December 6, 2006 among Chesapeake, as issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors, The Bank of New York Mellon Trust Company, N.A., as Trustee, AIB/BNY Fund Management (Ireland) Limited, as Irish Paying Agent and Transfer Agent, and The Bank of New York, London Branch, as Registrar, Transfer Agent and Paying Agent, with respect to 6.25% Senior Notes due 2017. 8-K 001-13726 4.1 12/6/2006  
             



4.3** Indenture dated as of May 15, 2007 among Chesapeake, as issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors and The Bank of New York Mellon Trust Company, N.A., as Trustee, with respect to 2.5% Contingent Convertible Senior Notes due 2037. 8-K 001-13726 4.1 5/15/2007  
             
4.4** Indenture dated as of May 27, 2008 among Chesapeake, as issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors and The Bank of New York Mellon Trust Company, N.A., as Trustee, with respect to 7.25% Senior Notes due 2018. 8-K 001-13726 4.1 5/29/2008  
             
4.5** Indenture dated as of May 27, 2008 among Chesapeake, as issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors and The Bank of New York Mellon Trust Company, N.A., as Trustee, with respect to 2.25% Contingent Convertible Senior Notes due 2038. 8-K 001-13726 4.2 5/29/2008  
             
4.6.1** Indenture dated as of August 2, 2010 among Chesapeake, as issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors, and the Bank of New York Mellon Trust Company, N.A., as Trustee. S-3 333-168509 4.1 8/3/2010  
             
4.6.2 First Supplemental Indenture dated as of August 17, 2010 to Indenture dated as of August 2, 2010 with respect to 6.875% Senior Notes due 2018. 8-A 001-13726 4.2 9/24/2010  
             
4.6.3 Second Supplemental Indenture, dated as of August 17, 2010 to Indenture dated as of August 2, 2010 with respect to 6.625% Senior Notes due 2020. 8-A 001-13726 4.3 9/24/2010  
             
4.6.4 Fifth Supplemental Indenture dated February 11, 2011 to Indenture dated as of August 2, 2010 with respect to 6.125% Senior Notes due 2021. 8-A 001-13726 4.2 2/22/2011  
             
4.6.5 Fourteenth Supplemental Indenture dated March 18, 2013 among Chesapeake, as issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors, and Deutsche Bank Trust Company Americas, as Trustee, to Indenture dated as of August 2, 2010. S-3 333-168509 4.17 3/18/2013  
             
4.6.6 Sixteenth Supplemental Indenture dated April 1, 2013 to Indenture dated as of August 2, 2010 with respect to 5.375% Senior Notes due 2021. 8-A 001-13726 4.3 4/8/2013  
             
4.6.7 Seventeenth Supplemental Indenture dated April 1, 2013 to Indenture dated as of August 2, 2010 with respect to 5.75% Senior Notes due 2023. 8-A 001-13726 4.4 4/8/2013  
             
4.7.1** Indenture dated as of April 24, 2014 by and among Chesapeake, as Issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors, and Deutsche Bank Trust Company Americas, as Trustee. 8-K 001-13726 4.1 4/29/2014  
             
4.7.2 First Supplemental Indenture dated as of April 24, 2014 to Indenture dated as of April 24, 2014 with respect to Floating Rate Senior Notes due 2019. 8-K 001-13726 4.2 4/29/2014  
             



4.7.3 Second Supplemental Indenture dated as of April 24, 2014 to Indenture dated as of April 24 2014 with respect to 4.875% Senior Notes due 2022. 8-K 001-13726 4.3 4/29/2014  
             
4.8 Indenture dated as of December 23, 2015 among Chesapeake, as Issuer, the subsidiaries signatory thereto, as Subsidiary Guarantors, and Deutsche Bank Trust Company Americas, as Trustee and Collateral Trustee with respect to 8.00% Senior Secured Second Lien Notes due 2022. 8-K 001-13726 4.1 12/23/2015  
             
4.9.1 Credit Agreement dated December 15, 2014 by and among: Chesapeake Energy Corporation, as borrower; MUFG Union Bank N.A., as administrative agent, co-syndication agent, a swingline lender and a letter of credit issuer; Wells Fargo Bank and National Association, as co-syndication agent, a swingline lender and a letter of credit issuer; Bank of America, N.A., Crédit Agricole Corporate and Investment Bank and JPMorgan Chase Bank, N.A., as co-documentation agents and letter of credit issuers; and certain other lenders named therein. 10-Q 001-13726 4.1 8/14/2016  
             
4.9.2 First Amendment to Credit Agreement dated September 30, 2015 among Chesapeake, as borrower, MUFG Union Bank N.A., as administrative agent, co-syndication agent, a swingline lender and a letter of credit issuer; Wells Fargo Bank, National Association, as co-syndication agent, a swingline lender and a letter of credit issuer; and certain other lenders named therein. 10-Q 001-13726 4.1 11/4/2015  
             
4.9.3 Second Amendment to Credit Agreement dated December 15, 2015 among Chesapeake, as borrower, MUFG Union Bank N.A., as administrative agent, co-syndication agent, a swingline lender and a letter of credit issuer; Wells Fargo Bank, National Association, as co-syndication agent, a swingline lender and a letter of credit issuer; and certain other lenders named therein. 8-K 001-13726 10.1 12/16/2015  
             
4.9.4†† Third Amendment to Credit Agreement dated April 8, 2016 among Chesapeake Energy Corporation, as borrower; MUFG Union Bank N.A., as administrative agent, a swingline lender and a letter of credit issuer; and certain other lenders named therein. 10-Q 001-13726 4.2 8/4/2016  
             
4.10 Intercreditor Agreement dated as of December 23, 2015 between MUFG Bank, N.A., as Priority Lien Agent, and Deutsche Bank Trust Company Americas, as Second Lien Collateral Trustee, and acknowledged by Chesapeake and certain of its subsidiaries. 8-K 001-13726 10.1 12/23/2015  
             
4.11 Collateral Trust Agreement, dated as of December 23, 2015, by and among Chesapeake, the guarantors named therein, and Deutsche Bank Trust Company Americas as the representative of the holders of the Second Lien Notes and as collateral trustee. 8-K 001-13726 10.2 12/23/2015  
             



4.12 Term Loan Agreement dated August 23, 2016 among Chesapeake Energy Corporation, the lenders party thereto and Deutsche Bank Trust Company Americas, as term agent. 8-K 001-13726 4.1 8/24/2016  
             
4.13 Class A Term Loan Supplement dated August 23, 2016 among Chesapeake Energy Corporation, the lenders party thereto and Deutsche Bank Trust Company Americas, as term agent. 8-K 001-13726 4.2 8/24/2016  
             
4.14 Indenture dated as of October 5, 2016, among Chesapeake Energy Corporation, the subsidiary guarantors named therein and Deutsche Bank Trust Company Americas, as trustee, with respect to the 5.5% Convertible Senior Notes due 2026. 8-K 001-13726 10.1 8/24/2016  
             
4.15 Collateral Trust Agreement, dated as of August 23, 2016 by and among MUFG Union Bank, N.A., as collateral trustee and revolver agent, and Deutsche Bank Trust Company Americas, as term loan agent, and acknowledged and agreed by Chesapeake Energy Corporation and certain of its subsidiaries. 8-K 001-13726 4.1 10/5/2016  
             
4.16 Sixth Supplemental indenture dated as of December 20, 2016 to indenture dated as of April 24, 2014 with respect to 8.00% Senior Notes due 2025. 8-K 001-13726 4.2 12/20/2016  
             
4.17 Registration Rights Agreement dated as of December 20, 2016, among Chesapeake Energy Corporation, the subsidiary guarantors named therein and Deutsche Bank Securities, Inc. 8-K 001-13726 4.4 12/20/2016  
             
10.1.1† Chesapeake's 2003 Stock Incentive Plan, as amended. 10-Q 001-13726 10.1.1 11/9/2009  
             
10.1.2† Form of 2013 Restricted Stock Award Agreement for Chesapeake's 2003 Stock Incentive Plan. 10-K 001-13726 10.1.3 3/1/2013  
             
10.2.1† Chesapeake's 2005 Amended and Restated Long Term Incentive Plan. 8-K 001-13726 10.1 6/20/2013  
             
10.2.2† Form of 2013 Restricted Stock Award Agreement for 2005 Amended and Restated Long Term Incentive Plan. 8-K 001-13726 10.3 2/4/2013  
             
10.2.3† Form of Nonqualified Stock Option Agreement for 2005 Amended and Restated Long Term Incentive Plan. 8-K 001-13726 10.1 2/4/2013  
             
10.2.4† Form of Retention Nonqualified Stock Option Agreement for 2005 Amended and Restated Long Term Incentive Plan. 8-K 001-13726 10.2 2/4/2013  
             
10.2.5†

 Form of 2013 Non-Employee Director Restricted Stock Award Agreement for 2005 Amended and Restated Long Term Incentive Plan. 10-K 001-13726 10.13.7 3/1/2013  
             
10.2.6†

 Form of 2013 Performance Share Unit Award Agreement for 2005 Amended and Restated Long Term Incentive Plan. 10-K 001-13726 10.13.9 3/1/2013  
             
10.2.7†

 Form of 2014 Performance Share Unit Award Agreement for 2005 Amended and Restated Long Term Incentive Plan. 10-K 001-13726 10.4.7 2/27/2014  
             



10.2.8†

Form of Restricted Stock Unit Award Agreement for 2005 Amended and Restated Long Term Incentive Plan.10-Q001-1372610.88/6/2013
10.2.9†

Form of Non-Employee Director Restricted Stock Unit Award Agreement for 2005 Amended and Restated Long Term Incentive Plan.10-Q001-1372610.98/6/2013
10.2.10†

Form of Pension and Equity Makeup Restricted Stock Award Agreement for 2005 Amended and Restated Long Term Incentive Plan for Robert D. Lawler.10-Q001-1372610.108/6/2013
10.3.1†
Chesapeake Energy Corporation Deferred Amended and Restated Deferred Compensation Plan, effective January 1, 2016.10-K001-1372610.32/25/2016

Amendment to the Chesapeake Energy Corporation Deferred Compensation Plan for Non-Employee Directors, effective January 1, 2017.X
10.4†

Chesapeake Energy Corporation Deferred Compensation Plan for Non-Employee Directors.10-K001-1372610.163/1/2013
10.5†

Employment Agreement dated as of May 20, 2013 between Robert D. Lawler and Chesapeake Energy Corporation.8-K001-1372610.15/23/2013
10.6†

Employment Agreement dated as of January 1, 2016 between Domenic J. Dell'Osso, Jr. and Chesapeake Energy Corporation.8-K001-1372610.11/6/2016
10.7†

Employment Agreement dated as of January 1, 2016 between James R. Webb and Chesapeake Energy Corporation.8-K001-1372610.21/6/2016
10.8†

Employment Agreement dated as of January 1, 2016 between M. Christopher Doyle and Chesapeake Energy Corporation.8-K001-1372610.31/6/2016
10.9†

Employment Agreement dated as of January 1, 2016 between Mikell Jason Pigott and Chesapeake Energy Corporation.8-K001-1372610.41/6/2016
10.10†
Employment Agreement dated as of May 21, 2015 between Frank Patterson and Chesapeake Energy Corporation.10-Q001-1372610.18/5/2015
10.11†

Form of Employment Agreement dated as of January 1, 2016 between Executive Vice President/Senior Vice President and Chesapeake Energy Corporation.8-K001-1372610.51/6/2016
10.12†

Form of Indemnity Agreement for officers and directors of Chesapeake Energy Corporation and its subsidiaries.8-K001-1372610.36/27/2012
10.13†

Chesapeake Energy Corporation 2013 Annual Incentive Plan.DEF 14A001-13726Exhibit G5/3/2013
10.13.1†

Chesapeake Energy Corporation 2014 Long Term Incentive Plan.DEF 14A001-13726Exhibit F4/30/2014
10.13.2†

Form of Restricted Stock Unit Award Agreement for 2014 Long Term Incentive Plan.10-Q001-1372610.28/6/2014



10.13.3†Form of Restricted Stock Award Agreement for 2014 Long Term Incentive Plan.10-Q001-1372610.38/6/2014
10.13.4†

Form of Nonqualified Stock Option Agreement for 2014 Long Term Incentive Plan.10-Q001-1372610.48/6/2014
10.13.5†

Form of Performance Share Unit Award Agreement for 2014 Long Term Incentive Plan.10-Q001-1372610.58/6/2014
10.13.6†

Form of Director Restricted Stock Unit Award Agreement for 2014 Long Term Incentive Plan.10-Q001-1372610.68/6/2014
Ratios of Earnings to Fixed Charges and Combined Fixed Charges and Preferred Dividends.X
Subsidiaries of Chesapeake Energy Corporation.X
Consent of PricewaterhouseCoopers LLP.X
Consent of Software Integrated Solutions, Division of Schlumberger Technology Corporation.X
Robert D. Lawler, President and Chief Executive Officer, Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.X
Domenic J. Dell'Osso, Jr., Executive Vice President and Chief Financial Officer, Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.X
Robert D. Lawler, President and Chief Executive Officer, Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.X
Domenic J. Dell'Osso, Jr., Executive Vice President and Chief Financial Officer, Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.X
Report of Software Integrated Solutions, Division of Schlumberger Technology Corporation.X
101 INSXBRL Instance Document.X
101 SCHXBRL Taxonomy Extension Schema Document.X
101 CALXBRL Taxonomy Extension Calculation Linkbase Document.X
101 DEFXBRL Taxonomy Extension Definition Linkbase Document.X
101 LABXBRL Taxonomy Extension Labels Linkbase Document.X
101 PREXBRL Taxonomy Extension Presentation Linkbase Document.X
*The Company agrees to furnish supplementally a copy of omitted exhibits and schedules to the Securities and Exchange Commission upon request.



**The Company agrees to furnish a copy of any of its unfiled long-term debt instruments to the Securities and Exchange Commission upon request.
Management contract or compensatory plan or arrangement.
††

Confidential treatment has been requested for portions of this exhibit. These portions have been omitted and submitted separately to the Securities and Exchange Commission.
PLEASE NOTE: Pursuant to the rules and regulations of the Securities and Exchange Commission, we have filed or incorporated by reference the agreements referenced above as exhibits to this Annual Report on Form 10-K. The agreements have been filed to provide investors with information regarding their respective terms. The agreements are not intended to provide any other factual information about Chesapeake Energy Corporation or its business or operations. In particular, the assertions embodied in any representations, warranties and covenants contained in the agreements may be subject to qualifications with respect to knowledge and materiality different from those applicable to investors and may be qualified by information in confidential disclosure schedules not included with the exhibits. These disclosure schedules may contain information that modifies, qualifies and creates exceptions to the representations, warranties and covenants set forth in the agreements. Moreover, certain representations, warranties and covenants in the agreements may have been used for the purpose of allocating risk between the parties, rather than establishing matters as facts. In addition, information concerning the subject matter of the representations, warranties and covenants may have changed after the date of the respective agreement, which subsequent information may or may not be fully reflected in our public disclosures. Accordingly, investors should not rely on the representations, warranties and covenants in the agreements as characterizations of the actual state of facts about Chesapeake Energy Corporation or its business or operations on the date hereof.