UNAUDITED CONDENSED STATEMENTS OF CONSOLIDATED OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Total revenues	$ 35,171	$ 59,532	$ 93,307	$ 124,687
Costs and expenses:
Lease operating expense	27,828	26,292	63,551	55,202
Exploration	3	6	19	21
Taxes other than income	2,195	3,464	6,181	7,873
Depreciation, depletion and amortization	7,623	12,913	23,179	24,079
Impairment expense	0	0	455,031	0
General and administrative expense	6,755	10,566	15,108	19,874
Accretion of asset retirement obligations	1,539	1,332	3,052	2,643
(Gain) loss on commodity derivative instruments	19,165	(22,993)	(88,548)	9,494
Other, net	0	34	0	177
Total costs and expenses	69,797	36,005	487,315	128,411
Operating income (loss)	(34,626)	23,527	(394,008)	(3,724)
Other income (expense):
Interest expense, net	(6,209)	(4,422)	(13,856)	(8,511)
Other income (expense)	(250)	0	(234)	0
Total other income (expense)	(6,459)	(4,422)	(14,090)	(8,511)
Income (loss) before reorganization items, net and income taxes	(41,085)	19,105	(408,098)	(12,235)
Reorganization items, net	(166)	(464)	(352)	(651)
Income tax benefit (expense)	(85)	0	(85)	50
Net income (loss)	(41,336)	18,641	(408,535)	(12,836)
Net (income) loss allocated to participating restricted stockholders	0	(728)	0	0
Net income (loss) attributable to common stockholders	$ (41,336)	$ 17,913	$ (408,535)	$ (12,836)
Earnings per share: (See Note 10)
Basic and diluted earnings per share	$ (1.10)	$ 0.80	$ (10.87)	$ (0.58)
Weighted average common shares outstanding:
Basic and diluted	37,595	22,267	37,582	22,223
Oil and Natural Gas Sales [Member]
Revenues:
Total revenues	$ 34,888	$ 59,485	$ 92,675	$ 124,552
Other Revenues [Member]
Revenues:
Total revenues	283	47	632	135
Gathering, Processing and Transportation [Member]
Costs and expenses:
Gathering, processing and transportation	$ 4,689	$ 4,391	$ 9,742	$ 9,048