Consolidated Statements of Operations & Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenues
Oil sales	$ 46,954,000	$ 70,739,000
Natural gas sales	7,165,000	6,823,000
Natural gas liquid sales	3,853,000	1,928,000
Total revenues	57,972,000	79,490,000
Costs and expenses
Lease operating and gas gathering	16,232,000	17,190,000
Production, ad valorem, and severance taxes	3,287,000	4,982,000
Rig standby expense	2,261,000	663,000
Depletion, depreciation, and amortization	46,888,000	58,828,000
Accretion of asset retirement obligations	180,000	214,000
Gain on sale of oil and gas properties	(74,000)
Impairment of oil and gas properties	33,893,000	28,623,000
Stock-based compensation	448,000	2,585,000
General and administrative	11,319,000	10,825,000
Other expense	1,261,000
Total costs and expenses	115,695,000	123,910,000
Loss from operations	(57,723,000)	(44,420,000)
Other income (expense)
Interest expense	(29,583,000)	(24,577,000)
Gain on redemption of bonds	28,480,000
Unrealized gain on warrants	568,000
(Loss) gain on derivative financial instruments	(8,672,000)	27,609,000
Other expense		(1,066,000)
Total other income (expense), net	(9,207,000)	1,966,000
Loss before income taxes	(66,930,000)	(42,454,000)
Income tax (expense) benefit	(27,405,000)	15,121,000
Net loss	$ (94,335,000)	$ (27,333,000)
Net loss common share-basic and diluted	$ (11.64)	$ (3.63)
Weighted average common shares outstanding–basic and diluted	8,106,931	7,521,788
Other comprehensive (loss) income:
Net loss	$ (94,335,000)	$ (27,333,000)
Foreign currency translation adjustments		12,000
Comprehensive loss	$ (94,335,000)	$ (27,321,000)