Consolidated Statements Of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues
Revenues	$ 36,692	$ 17,616
Expenses
Lease operating and gas gathering	4,584	2,956
Production and ad valorem taxes	2,166	1,037
Depreciation, depletion and amortization	15,425	11,974
Loss on sale of oil and gas properties		142
General and administrative	3,409	2,670
Other expense	1,568
Total expenses	27,152	18,779
Income (loss) from operations	9,540	(1,163)
Other (expense) income
Interest expense	(9,258)	(5,032)
Unrealized (loss) gain on warrants	(152)	2,270
(Loss) gain on derivative financial instruments	(11,156)	8,746
Loss on extinguishment of debt	(8,619)
Total other (expense) income, net	(29,185)	5,984
(Loss) income before income taxes	(19,645)	4,821
Income tax benefit (expense)	3,109	(1,703)
Net (loss) income	(16,536)	3,118
Preferred stock dividends	(1,889)
Net (loss) income attributable to common stockholders	$ (18,425)	$ 3,118
Net (loss) income per common share
Basic	$ (0.75)	$ 0.14
Diluted	$ (0.75)	$ 0.14
Weighted average common shares outstanding
Basic	24,559,132	21,822,015
Diluted	24,559,132	22,833,615
Oil sales
Revenues
Revenues	$ 33,152	$ 14,489
Natural gas liquid sales
Revenues
Revenues	1,734	1,671
Natural gas sales
Revenues
Revenues	$ 1,806	$ 1,456