Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities
Net income (loss)	$ 640,636	$ (553,560)	$ 122,982
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Unrealized (gain) loss on derivatives	(21,011)	32,008	53,727
Depletion, depreciation and amortization	344,905	361,831	350,540
Accretion of asset retirement obligations	2,068	1,948	1,822
Full-cost ceiling impairment	0	684,743	0
Stock-based compensation expense	9,039	13,625	18,505
Net deferred income tax provision (benefit)	74,710	(45,599)	35,532
Amortization of debt issuance cost	3,659	2,832	2,484
Net loss on asset sales and impairment	331	2,832	967
Changes in operating assets and liabilities
Accounts receivable	(98,456)	53,001	(43,261)
Lease and well equipment inventory	(1,537)	(655)	4,777
Prepaid expenses	(11,786)	(3,010)	(4,844)
Other assets	56	1,681	678
Accounts payable, accrued liabilities and other current liabilities	76,891	(43,844)	(19,004)
Royalties payable	28,310	(19,144)	20,417
Advances from joint interest owners	7,018	(10,646)	3,869
Other long-term liabilities	(1,478)	(461)	2,851
Net cash provided by operating activities	1,053,355	477,582	552,042
Investing activities
Drilling, completion and equipping capital expenditures	(431,136)	(471,087)	(679,395)
Acquisition of oil and natural gas properties	(238,609)	(72,809)	(50,766)
Midstream capital expenditures	(63,359)	(234,359)	(192,035)
Expenditures for other property and equipment	(376)	(2,200)	(3,701)
Proceeds from sale of assets	4,215	4,789	21,921
Net cash used in investing activities	(729,265)	(775,666)	(903,976)
Financing activities
Repayments of borrowings under Credit Agreement	(600,000)	(35,000)	(35,000)
Borrowings under Credit Agreement	260,000	220,000	250,000
Repayments of borrowings under San Mateo Credit Facility	(84,000)	0	0
Borrowings under San Mateo Credit Facility	135,000	46,000	68,000
Cost to enter into or amend credit facilities	(4,108)	(660)	(1,443)
Proceeds from stock options exercised	1,335	45	3,300
Dividends paid	(14,581)
Contributions related to formation of San Mateo	48,626	14,700	14,700
Contributions from non-controlling interest owners of less-than-wholly-owned subsidiaries	0	119,700	77,330
Distributions to non-controlling interest owners of less-than-wholly-owned subsidiaries	(61,985)	(45,570)	(39,200)
Taxes paid related to net share settlement of stock-based compensation	(8,211)	(1,556)	(3,691)
Other	(629)	6,680	(918)
Net cash (used in) provided by financing activities	(328,553)	324,339	333,078
(Decrease) increase in cash and restricted cash	(4,463)	26,255	(18,856)
Cash and restricted cash at beginning of period	91,383	65,128	83,984
Cash and restricted cash at end of period	$ 86,920	$ 91,383	$ 65,128