Table of Contents Index to Financial Statements Disaggregation of Revenues The Company presents a disaggregation of E&P revenues by product in the consolidated statements of operations net of intersegment revenues. The following table reconciles operating revenues as presented on the consolidated statements of operations to the operating revenues by segment: Intersegment (in millions) E&P Midstream Revenues Total Year ended December 31, 2018 Gas sales $ 1,974  $ – $ 24  $ 1,998  Oil sales 193  – 3  196  NGL sales 353  – (1) 352  Marketing – 3,497  (2,275) 1,222  Gas gathering  (1) – 248  (159) 89  Other  (2) 5  – – 5  Total $ 2,525  $ 3,745  $ (2,408) $ 3,862  Year ended December 31, 2017 Gas sales $ 1,775  $ – $ 18  $ 1,793  Oil sales 101  – 1  102  NGL sales 206  – – 206  Marketing – 2,867  (1,895) 972  Gas gathering – 331  (205) 126  Other  (2) 4  – – 4  Total $ 2,086  $ 3,198  $ (2,081) $ 3,203  Year ended December 31, 2016 Gas sales $ 1,252  $ – $ 21  $ 1,273  Oil sales 69  – – 69  NGL sales 92  – – 92  Marketing – 2,191  (1,327) 864  Gas gathering – 378  (240) 138  Total $ 1,413  $ 2,569  $ (1,546) $ 2,436  (1) The Company’s gas gathering assets were divested in December 2018 as part of the Fayetteville Shale sale. (2) Other E&P revenues consists primarily of water sales to third-party operators. Associated E&P revenues are also disaggregated for analysis on a geographic basis by the core areas in which the Company operates, which are in Pennsylvania and West Virginia. Operations in northeast Pennsylvania are referred to as “Northeast Appalachia,” operations in West Virginia and southwest Pennsylvania are referred to as “Southwest Appalachia.” In December 2018, the Company sold 100% of its Fayetteville Shale assets. See  Note 3  for more details. The following table reconciles the Company’s receivables from contracts with customers to consolidated accounts receivable as presented on the consolidated balance sheet: For the year ended December 31, (in millions) 2018 2017 2016 Northeast Appalachia $ 1,165  $ 837  $ 470  Southwest Appalachia 817  498  259  Fayetteville Shale 537  743  675  Other 6  8  9  Total $ 2,525  $ 2,086  $ 1,413  (in millions) December 31, 2018 December 31, 2017 Receivables from contracts with customers $ 494  $ 322  Other accounts receivable 87  106  Total accounts receivable $ 581  $ 428  92 Receivables from Contracts with Customers