Unaudited Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Revenues	$ 37,009	$ 40,741
Expenses
Lease operating and gas gathering	9,788	7,710
Production and ad valorem taxes	2,369	2,291
Depreciation, depletion and amortization	24,354	17,970
Loss on sale of oil and gas properties	0	32,894
Impairment of oil and gas properties	199,908	0
General and administrative	2,881	4,379
Other	(223)	(2)
Total expenses	239,077	65,242
Loss from operations	(202,068)	(24,501)
Other income (expense)
Interest expense	(11,610)	(10,656)
Change in fair value of warrants	363	(102)
Gain (loss) on derivative financial instruments	101,169	(36,238)
Total other income (expense)	89,922	(46,996)
Loss before income taxes	(112,146)	(71,497)
Income tax benefit	1,355	12,933
Net Loss	(110,791)	(58,564)
Preferred stock dividends	(2,257)	(2,065)
Net loss attributable to common stockholders	$ (113,048)	$ (60,629)
Net loss per common share
Basic (in dollars per share)	$ (4.52)	$ (2.45)
Diluted (in dollars per share)	$ (4.52)	$ (2.45)
Weighted average common shares outstanding
Basic (in shares)	25,003,977	24,698,372
Diluted (in shares)	25,003,977	24,698,372
Oil sales
Revenues
Revenues	$ 29,990	$ 33,584
Natural gas liquid sales
Revenues
Revenues	2,599	3,393
Natural gas sales
Revenues
Revenues	$ 4,420	$ 3,764