Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Oil, natural gas, and natural gas liquids revenues:
Oil	$ 39,849	$ 34,734	$ 16,038
Natural gas	5,457	9,367	9,714
Natural gas liquids	2,158	3,510	3,882
Total oil, natural gas, and natural gas liquids revenues	47,464	47,611	29,634
Gathering income	309	383	430
Gain (loss) on sale of oil and gas properties	1,617		(121)
Total revenues	49,390	47,994	29,943
Production costs:
Lease operating expense	15,409	10,122	8,426
Severance taxes	2,582	2,002	1,225
Re-engineering and workovers	872	708	342
Impairment expense	138,086	19,359	12,298
Depreciation, depletion, and amortization	31,228	18,414	17,111
Exploration expense	142	111	2,490
General and administrative expense	10,300	7,864	7,751
Total operating costs and expenses	198,619	58,580	49,643
Income (loss) from operations	(149,229)	(10,586)	(19,700)
OTHER INCOME (EXPENSE)
Interest expense, net	(722)	(597)	(487)
Net gain on derivative contracts	6,431	4,392	296
Other income, net	423	62	16
Total other income (expense)	6,132	3,857	(175)
Loss before income taxes	(143,097)	(6,729)	(19,875)
Income tax (benefit) expense	(26,442)	22,105
Net income (loss)	$ (116,655)	$ (28,834)	$ (19,875)
Net loss per common share:
Basic	$ (8.43)	$ (3.11)	$ (2.18)
Diluted	$ (8.43)	$ (3.11)	$ (2.18)
Weighted average common shares outstanding:
Basic	13,835,128	9,279,324	9,124,452
Diluted	13,835,128	9,279,324	9,124,452