Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Net commodity sales	$ 48,851	$ 48,619
Sublease revenue	0	1,198
Total revenues	48,851	49,817
Costs and expenses:
Lease operating	10,088	12,294
Production taxes	2,750	2,880
Depreciation, depletion and amortization	23,012	23,715
Impairment of oil and gas assets	71,371	49,722
Impairment of other assets	153	0
General and administrative	8,068	8,313
Subleases	0	403
Total costs and expenses	115,442	97,327
Operating loss	(66,591)	(47,510)
Non-operating income (expense):
Interest expense	(6,636)	(4,564)
Derivative gains (losses)	78,380	(51,016)
Gain (loss) on sale of assets	102	(1)
Other income, net	246	14
Net non-operating income (expense)	72,092	(55,567)
Reorganization items, net	(584)	(463)
Income (loss) before income taxes	4,917	(103,540)
Income tax expense	0	0
Net income (loss)	$ 4,917	$ (103,540)
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.11	$ (2.28)
Diluted (in dollars per share)	$ 0.11	$ (2.28)
Weighted average shares used to compute earnings per share:
Basic (in shares)	45,830,286	45,456,214
Diluted (in shares)	46,194,495	45,456,214