CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues
Total revenues	$ 88,555	$ 91,379
Operating expenses
Lease operating	8,825	10,532
Gathering, processing and transportation	4,674	5,444
Production and ad valorem taxes	5,513	6,154
General and administrative	13,177	7,230
Depreciation, depletion and amortization	23,884	40,718
Impairments of oil and gas properties	1,811	0
Total operating expenses	57,884	70,078
Operating income (loss)	30,671	21,301
Other income (expense)
Interest expense	(5,397)	(8,180)
Gain (Loss) on Extinguishment of Debt	(1,231)	0
Derivatives	(44,368)	151,119
Other, net	(6)	(8)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	(20,331)	164,232
Income tax benefit (expense)	310	(1,138)
Net income (loss)	(20,021)	163,094
Net loss attributable to Noncontrolling interest	6,449	0
Net income (loss) attributable to common shareholders	$ (13,572)	$ 163,094
Net income (loss) per share:
Basic (in dollars per share)	$ (0.89)	$ 10.76
Diluted (in dollars per share)	$ (0.89)	$ 10.76
Weighted average shares outstanding – basic (in shares)	15,263	15,152
Weighted average shares outstanding – diluted (in shares)	15,263	15,160
Oil and Gas, Exploration and Production [Member]
Revenues
Revenues and other	$ 81,913	$ 86,308
Oil and Condensate [Member]
Revenues
Revenues and other	3,562	1,893
Natural Gas, Production [Member]
Revenues
Revenues and other	2,833	2,690
Product and Service, Other [Member]
Revenues
Revenues and other	$ 247	$ 488