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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net loss including non-controlling interests	$ (4,470,721)	$ (26,493)
Adjustments to reconcile net loss including non-controlling interests to net cash provided by operating activities:
Depreciation, depletion and amortization	272,885	578,023
Gain on extinguishment of debt	(83,867)	0
(Gain) loss on sale of properties	(11,652)	3,950
Impairment	4,828,575	653
Deferred income taxes	(262,459)	(8,840)
Derivative instruments	(243,064)	34,940
Equity-based compensation expenses	16,531	26,370
Non-cash reorganization items, net	49,758	0
Deferred financing costs amortization and other	19,041	18,190
Working capital and other changes:
Change in accounts receivable, net	168,749	1,555
Change in inventory	(6,206)	(3,676)
Change in prepaid expenses	(6,107)	4,153
Change in accounts payable, interest payable and accrued liabilities	(112,479)	22,280
Change in other assets and liabilities, net	(4,079)	(11,211)
Net cash provided by operating activities	154,905	639,894
Cash flows from investing activities:
Capital expenditures	(291,776)	(714,270)
Acquisitions	0	(8,337)
Proceeds from sale of properties	15,188	41,039
Derivative settlements	224,223	10,752
Net cash used in investing activities	(52,365)	(670,816)
Cash flows from financing activities:
Proceeds from revolving credit facilities	967,189	1,651,000
Principal payments on revolving credit facilities	(914,549)	(1,600,000)
Repurchase of senior unsecured notes	(68,060)	0
Deferred financing costs	(172)	(852)
Purchases of treasury stock	(2,651)	(4,625)
Distributions to non-controlling interests	(18,062)	(15,551)
Payments on finance lease liabilities	(1,989)	(1,423)
Other	0	(392)
Net cash provided by (used in) financing activities	(38,294)	28,157
Increase (decrease) in cash and cash equivalents	64,246	(2,765)
Cash and cash equivalents:
Beginning of period	20,019	22,190
End of period	84,265	19,425
Supplemental non-cash transactions:
Change in accrued capital expenditures	(81,939)	(42,751)
Change in asset retirement obligations	$ 2,860	$ 4,114

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