Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Crude oil, natural gas and NGLs sales	$ 2,552,558	$ 1,152,555	$ 1,307,275
Commodity price risk management gain (loss), net	(701,456)	180,270	(162,844)
Other Income	4,808	6,401	11,692
Revenues, Total	1,855,910	1,339,226	1,156,123
Costs, expenses and other:
Lease operating expenses	180,659	161,346	142,248
Production tax expense	165,209	59,368	80,754
Transportation, gathering and processing expenses	100,403	77,835	46,353
Exploration, geologic and geophysical expense	1,064	1,376	4,054
General and administrative expense	127,733	161,087	161,753
Depreciation, depletion and amortization	635,184	619,739	644,152
Accretion of asset retirement obligations	12,086	10,072	6,117
Impairment of properties and equipment	402	882,393	38,536
Loss (gain) on sale of properties and equipment	(912)	(724)	9,734
Other expenses	2,490	10,272	11,317
Total cost, expenses and other	1,224,318	1,982,764	1,145,018
Income (loss) from operations	631,592	(643,538)	11,105
Interest expense	(82,698)	(88,684)	(71,099)
Income (Loss) before income taxes	548,894	(732,222)	(59,994)
Income tax benefit (expense)	(26,583)	7,902	3,322
Net Income (loss)	$ 522,311	$ (724,320)	$ (56,672)
Basic	$ 5.30	$ (7.37)	$ (0.89)
Diluted	$ 5.22	$ (7.37)	$ (0.89)
Weighted-average common shares outstanding:
Basic	98,546	98,251	64,032
Diluted	100,154	98,251	64,032