Unless the context requires otherwise, references to “we,” “us,” “our” or “Enterprise” are intended to mean the business and operations of Enterprise Products Partners L.P. and its consolidated subsidiaries.  References to “EPD” or the “Partnership” mean Enterprise Products Partners L.P. on a standalone basis.  References to “EPO” mean Enterprise Products Operating LLC, which is an indirect wholly owned subsidiary of EPD, and its consolidated subsidiaries, through which EPD conducts its business.  Enterprise is managed by its general partner, Enterprise Products Holdings LLC (“Enterprise GP”), which is a wholly owned subsidiary of Dan Duncan LLC, a privately held Texas limited liability company.

The membership interests of Dan Duncan LLC are owned by a voting trust, the current trustees (“DD LLC Trustees”) of which are: (i) Randa Duncan Williams, who is also a director and Chairman of the Board of Directors (the “Board”) of Enterprise GP; (ii) Richard H. Bachmann, who is also a director and Vice Chairman of the Board of Enterprise GP; and (iii) Dr. Ralph S. Cunningham, who is also an advisory director of Enterprise GP.  Ms. Duncan Williams and Mr. Bachmann also currently serve as managers of Dan Duncan LLC along with W. Randall Fowler, who is also a director and the PresidentCo-Chief Executive Officer and Chief Financial Officer of Enterprise GP.

References to “EPCO” mean Enterprise Products Company, a privately held Texas corporation, and its privately held affiliates.  A majority of the outstanding voting capital stock of EPCO is owned by a voting trust, the current trustees (“EPCO Trustees”) of which are:  (i) Ms. Duncan Williams, who serves as Chairman of EPCO; (ii) Dr. Cunningham, who serves as Vice Chairman of EPCO; and (iii) Mr. Bachmann, who serves as the President and Chief Executive Officer of EPCO.  Ms. Duncan Williams and Mr. Bachmann also currently serve as directors of EPCO along with Mr. Fowler, who is also the Executive Vice President and Chief Financial Officer of EPCO. EPCO, together with its privately held affiliates, owned approximately 31.9%32.1% of EPD’s limited partner common units at SeptemberJune 30, 2019.2020.

We are a publicly traded Delaware limited partnership, the common units of which are listed on the New York Stock Exchange (“NYSE”) under the ticker symbol “EPD.”  We were formed in April 1998 to own and operate certain natural gas liquids (“NGLs”) related businesses of EPCO and are a leading North American provider of midstream energy services to producers and consumers of natural gas, NGLs, crude oil, petrochemicals and refined products. 

We conduct substantially all of our business through EPO and are owned 100% by EPD’s limited partners from an economic perspective.  Enterprise GP manages our partnership and owns a non-economic general partner interest in us.  We, Enterprise GP, EPCO and Dan Duncan LLC are affiliates under the collective common control of the DD LLC Trustees and the EPCO Trustees.  Like many publicly traded partnerships, we have no employees.  All of our management, administrative and operating functions are performed by employees of EPCO pursuant to an administrative services agreement (the “ASA”) or by other service providers.  See Note 1415 for information regarding related party matters.

Our results of operations for the ninesix months ended SeptemberJune 30, 20192020 are not necessarily indicative of results expected for the full year of 2019.2020.  In our opinion, the accompanying Unaudited Condensed Consolidated Financial Statements include all adjustments consisting of normal recurring accruals necessary for fair presentation.  Although we believe the disclosures in these financial statements are adequate and make the information presented not misleading, certain information and footnote disclosures normally included in annual financial statements prepared in accordance with United States (“U.S.”) generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”).

These Unaudited Condensed Consolidated Financial Statements and Notes thereto should be read in conjunction with the Audited Consolidated Financial Statements and Notes thereto included in our annual report on Form 10-K for the year ended December 31, 20182019  (the “2018“2019 Form 10-K”) filed with the SEC on March 1, 2019.February 28, 2020.

Apart from those matters noted below, there have been no changes in our significant accounting policies since those reported under Note 2 of the 20182019 Form 10-K.

The following table provides a reconciliation of cash and cash equivalents, and restricted cash reported within the Unaudited Condensed Consolidated Balance Sheets that sum to the total of the amounts shown in the Unaudited Condensed Statements of Consolidated Cash Flows.

Restricted cash primarily represents amounts held in segregated bank accounts by our clearing brokers as margin in support of our commodity derivative instruments portfolio and related physical purchases and sales of natural gas, NGLs, crude oil, refined products and refined products.power.  Additional cash may be restricted to maintain our commodity derivative instruments portfolio as prices fluctuate or margin requirements change.  See Note 1314 for information regarding our derivative instruments and hedging activities.

In FebruaryJune 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards CodificationUpdate (“ASC”ASU”) 842,2016-13, LeasesFinancial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.  The new guidance, referred to as the current expected credit loss model, requires the measurement of  expected credit losses for financial assets (e.g., which requires substantially all leases be recordedaccounts receivable) held at the reporting date based on historical experience, current economic conditions, and reasonable and supportable forecasts.  These result in the balance sheet. We adopted themore timely recognition of losses.  The adoption of this new standardguidance on January 1, 20192020 did not have a material impact on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement, which amended the disclosure requirements related to fair value measurements in an effort to enhance the overall usefulness of the disclosures and applied itreduce costs by eliminating certain disclosures that were not considered to (i) all new leases entered into after January 1, 2019be decision-useful for users of the financial statements.  The ASU will now require incremental disclosures regarding changes in unrealized gains and (ii) all existing lease contracts as of January 1, 2019. ASC 842 supersedes existing lease accounting guidance found under ASC 840, Leases.losses, significant unobservable inputs used to develop Level 3 fair value measurements and measurement uncertainty.  Additionally, the ASU eliminated certain policy and process disclosures and reporting requirements.

The adoption of this new standard introduces two lessee accounting models, which result inguidance on January 1, 2020 did not have a lease being classified as either a “finance” or “operating” lease basedmaterial impact on whether the lessee effectively obtains control of the underlying asset during the lease term.  A lease would be classified as a finance lease if it meets one of five classification criteria, four of which are generally consistent with ASC 840 lease accounting guidance.  By default, a lease that does not meet the criteria to be classified as a finance lease will be deemed an operating lease.  Regardless of classification, the initial measurement of both lease types will result in the balance sheet recognition of a right-of-use (“ROU”) asset (representing a company’s right to use the underlying assetour consolidated financial statements.  See Note 14 for a specified period of time) and a corresponding lease liability.  The lease liability will be recognized at the presentinformation regarding our fair value of the future lease payments, and the ROU asset will equal the lease liability adjusted for any prepaid rent, lease incentives provided by the lessor, and any indirect costs.

Our inventory amounts by product type were as follows at the dates indicated:

Due to fluctuating commodity prices, we recognize lower of cost or net realizable value adjustments when the carrying value of our available-for-sale inventories exceeds their net realizable value.  The following table presents our total cost of sales amounts and lower of cost or net realizable value adjustments for the periods indicated:

The historical costs of our property, plant and equipment and related accumulated depreciation balances were as follows at the dates indicated:

The following table summarizes our depreciation expense and capitalized interest amounts for the periods indicated:

Property, plant and equipment at SeptemberJune 30, 20192020 and December 31, 20182019 includes $66.4$70.3 million and $72.5$69.6 million, respectively, of asset retirement costs capitalized as an increase in the associated long-lived asset.  The following table presents information regarding our asset retirement obligations, or AROs, since December 31, 2018:2019:

The following table presents our investments in unconsolidated affiliates by business segment at the dates indicated.  We account for these investments using the equity method.

The following table presents our equity in income (loss) of unconsolidated affiliates by business segment for the periods indicated: