Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows provided by (used in) operating activities:
Net income (loss) including noncontrolling interests	$ (64,437)	$ 255,523
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depletion, depreciation, amortization, and accretion	711,581	612,823
Impairment of unproved properties	406,068	83,098
Impairment of gathering systems and facilities	9,658
Commodity derivative fair value gains	(134,793)	(458,459)
Gains on settled commodity derivatives	268,369	137,392
Marketing derivative fair value gains	(94,081)
Gains on settled marketing derivatives	78,098
Proceeds from derivative monetizations		749,906
Deferred income tax expense	2,500	105,087
Equity-based compensation expense	56,429	78,925
Equity in earnings of unconsolidated affiliates	(27,832)	(12,887)
Distributions from unconsolidated affiliates	29,660	10,120
Other	2,945	1,191
Changes in current assets and liabilities:
Accounts receivable	4,653	1,771
Accrued revenue	(53,888)	28,375
Other current assets	(3,721)	(3,836)
Accounts payable	8,177	4,731
Accrued liabilities	27,446	43,043
Revenue distributions payable	36,215	56,982
Other current liabilities	(2,649)	(977)
Net cash provided by operating activities	1,260,398	1,692,808
Cash flows used in investing activities:
Additions to proved properties		(179,318)
Additions to unproved properties	(130,381)	(182,207)
Drilling and completion costs	(1,125,660)	(946,508)
Additions to water handling and treatment systems	(77,385)	(143,470)
Additions to gathering systems and facilities	(337,448)	(254,619)
Additions to other property and equipment	(5,371)	(11,417)
Investments in unconsolidated affiliates	(91,419)	(216,776)
Change in other assets	(2,675)	(16,148)
Other		2,156
Net cash used in investing activities	(1,770,339)	(1,948,307)
Cash flows provided by (used in) financing activities:
Issuance of common units by Antero Midstream Partners LP		248,949
Proceeds From Sale Of Interest In Partnership Unit		311,100
Borrowings (repayments) on bank credit facilities, net	682,000	(198,000)
Distributions to noncontrolling interest in consolidated subsidiary	(188,775)	(102,053)
Employee tax withholding for settlement of equity compensation awards	(8,205)	(8,500)
Other	(3,520)	(3,913)
Net cash provided by financing activities	481,500	247,583
Net increase (decrease) in cash and cash equivalents	(28,441)	(7,916)
Cash and cash equivalents, beginning of period	28,441	31,610
Cash and cash equivalents, end of period		23,694
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	179,489	174,324
Supplemental disclosure of noncash investing activities:
Increase (decrease) in accounts payable and accrued liabilities for additions to property and equipment	$ 7,325	$ (3,084)