Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Oil and gas sales	$ 99,249	$ 45,699	$ 255,850	$ 123,921
Costs and Expenses [Abstract]
General and administrative, net	5,257	5,833	14,872	17,926
Depreciation, depletion, and amortization	16,054	13,975	45,485	51,130
Accretion of asset retirement obligation	77	90	226	263
Lease operating costs	6,978	5,211	18,767	16,023
Workovers	423	8	512	8
Transportation and gas processing	5,913	5,094	17,175	16,291
Severance and other taxes	4,908	2,512	11,974	7,513
Write-down of oil and gas properties	0	0	0	355,948
Operating Expenses	39,610	32,723	109,011	465,102
Operating Income (Loss)	59,639	12,976	146,839	(341,181)
Net gain (loss) on commodity derivatives	(88,554)	(12,944)	(152,879)	66,884
Interest expense, net	(7,433)	(7,444)	(21,888)	(23,876)
Other Nonoperating Income (Expense)	(3)	(56)	6	50
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(36,351)	(7,468)	(27,922)	(298,123)
Provision (Benefit) for Income Taxes	(408)	(572)	(408)	20,607
Net Income (Loss)	$ (35,943)	$ (6,896)	$ (27,514)	$ (318,730)
Per Share Amounts-
Earnings Per Share, Basic	$ (2.85)	$ (0.58)	$ (2.24)	$ (26.81)
Earnings Per Share, Diluted	$ (2.85)	$ (0.58)	$ (2.24)	$ (26.81)
Weighted Average Shares Outstanding - Basic	12,629	11,935	12,283	11,890
Weighted Average Shares Outstanding - Diluted	12,629	11,935	12,283	11,890