Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Accounts receivable	$ 34,768	$ 28,457
Accrued revenue	652,521	425,314
Derivative instruments	627	105,130
Other current assets	20,937	15,238
Total current assets	708,853	574,139
Oil and gas properties, at cost (successful efforts method):
Unproved properties	1,052,543	1,175,178
Proved properties	12,559,146	12,260,713
Gathering systems and facilities	5,802	5,802
Other property and equipment	91,621	74,361
Property and equipment, gross	13,709,112	13,516,054
Less accumulated depletion, depreciation, and amortization	(4,176,296)	(3,869,116)
Property and equipment, net	9,532,816	9,646,938
Operating leases right-of-use assets	2,969,642	2,613,603
Derivative instruments	14,834	47,293
Investment in unconsolidated affiliate	236,597	255,082
Other assets	8,796	13,790
Total assets	13,471,538	13,150,845
Current liabilities:
Accounts payable	60,409	26,728
Accounts payable, related parties	79,595	69,860
Accrued liabilities	501,132	343,524
Revenue distributions payable	315,936	198,117
Derivative instruments	1,436,292	31,242
Short-term lease liabilities	353,470	266,024
Deferred revenue, VPP	39,528	45,257
Other current liabilities	16,320	2,302
Total current liabilities	2,802,682	983,054
Long-term liabilities:
Long-term debt	2,341,033	3,001,593
Deferred income tax liability	55,636	412,252
Derivative instruments	331,570	99,172
Long-term lease liabilities	2,616,889	2,348,785
Deferred revenue, VPP	127,844	156,024
Other liabilities	60,642	59,694
Total liabilities	8,336,296	7,060,574
Commitments and contingencies (Notes 13 and 14)
Equity:
Preferred stock, $0.01 par value; authorized - 50,000 shares; none issued
Common stock, $0.01 par value; authorized - 1,000,000 shares; 268,672 shares and 313,866 shares issued and outstanding as of December 31, 2020 and September 30, 2021, respectively	3,138	2,686
Additional paid-in capital	6,365,929	6,195,497
Accumulated deficit	(1,518,762)	(430,478)
Total stockholders' equity	4,850,305	5,767,705
Noncontrolling interests	284,937	322,566
Total equity	5,135,242	6,090,271
Total liabilities and equity	$ 13,471,538	$ 13,150,845