Consolidated Statements of Operations & Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues
Oil sales	$ 15,168	$ 21,338	$ 24,119	$ 37,559
Natural gas sales	1,636	1,151	3,257	2,479
Natural gas liquid sales	999	609	1,623	1,122
Total revenues	17,803	23,098	28,999	41,160
Costs and expenses
Lease operating and gas gathering	4,398	4,589	8,758	8,050
Production, ad valorem, and severance taxes	1,223	1,476	2,139	2,827
Rig standby expense	1,584		1,897
Depletion, depreciation, and amortization	12,498	13,253	27,636	26,039
Accretion of asset retirement obligations	51	54	107	106
(Gain) loss on sale of oil and gas properties	(1,531)		(1,531)	625
Impairment of oil and gas properties	1,938		1,938
Stock-based compensation	95	433	191	866
General and administrative	2,858	2,408	5,631	4,696
Other (income) expense	819	(4)	1,047	35
Total costs and expenses	23,933	22,209	47,813	43,244
Income (loss) from operations	(6,130)	889	(18,814)	(2,084)
Other income (expense)
Interest expense	(6,174)	(5,972)	(12,299)	(11,819)
Losses on derivative financial instruments	(6,785)	(7,500)	(5,069)	(525)
Total other expense, net	(12,959)	(13,472)	(17,368)	(12,344)
Loss before income taxes	(19,089)	(12,583)	(36,182)	(14,428)
Income tax benefit	6,245	4,230	12,040	5,350
Net loss	$ (12,844)	$ (8,353)	$ (24,142)	$ (9,078)
Net loss per common share-basic and diluted	$ (0.85)	$ (0.56)	$ (1.60)	$ (0.60)
Weighted average common shares outstanding–basic and diluted	15,044,051	15,044,051	15,044,051	15,044,051
Other comprehensive loss:
Net loss	$ (12,844)	$ (8,353)	$ (24,142)	$ (9,078)
Foreign currency translation adjustments	(17)	(13)	(16)	1
Comprehensive loss	$ (12,861)	$ (8,366)	$ (24,158)	$ (9,077)