CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Total revenues	$ 141,061	$ 69,411	$ 354,315	$ 206,272
Operating expenses
Lease operating	10,647	8,275	29,200	27,901
Gathering, processing and transportation	5,688	5,760	15,535	16,797
Production and ad valorem taxes	7,534	4,368	19,768	13,152
General and administrative	10,932	8,585	31,094	23,801
Depreciation, depletion and amortization	30,975	37,038	83,654	114,891
Impairments of oil and gas properties	0	235,989	1,811	271,498
Total operating expenses	65,776	300,015	181,062	468,040
Operating income (loss)	75,285	(230,604)	173,253	(261,768)
Other income (expense)
Interest expense	(10,582)	(7,497)	(21,282)	(24,213)
Gain (Loss) on Extinguishment of Debt	0	0	(1,231)	0
Derivatives	(21,084)	(6,891)	(119,679)	109,879
Other, net	(7)	21	(13)	(42)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	43,612	(244,971)	31,048	(176,144)
Net income (loss)	43,063	(243,413)	30,638	(175,034)
Net income attributable to Noncontrolling interest	(25,676)	0	(23,778)	0
Net income (loss) attributable to common shareholders	$ 17,387	$ (243,413)	$ 6,860	$ (175,034)
Net income (loss) per share:
Basic (in dollars per share)	$ 1.13	$ (16.03)	$ 0.45	$ (11.54)
Diluted (in dollars per share)	$ 1.11	$ (16.03)	$ 0.44	$ (11.54)
Weighted average shares outstanding – basic (in shares)	15,319	15,183	15,298	15,168
Weighted average shares outstanding – diluted (in shares)	15,713	15,183	15,669	15,168
Current Federal, State and Local, Tax Expense (Benefit)	$ (549)	$ 1,558	$ (410)	$ 1,110
Oil and Gas, Exploration and Production [Member]
Revenues
Revenues and other	127,995	63,227	326,222	190,732
Oil and Condensate [Member]
Revenues
Revenues and other	7,165	2,824	15,115	6,295
Natural Gas, Production [Member]
Revenues
Revenues and other	4,973	2,563	10,893	7,273
Product and Service, Other [Member]
Revenues
Revenues and other	$ 928	$ 797	$ 2,085	$ 1,972