Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 3,884	$ 6,068
Accounts receivable:
Oil, natural gas liquid and natural gas sales	6,194	4,680
Joint interest owners and other, net	599	867
Related parties	1,711	847
Derivative financial instruments	2,980	1,730
Prepaid expenses and other	2,773	2,631
Total current assets	18,141	16,823
Oil and gas properties, net, using the successful efforts method of accounting	442,311	439,228
Other property and equipment, net	1,273	1,421
Derivative financial instruments	2,015
Other noncurrent assets	1,645	1,561
Restricted certificates of deposit	76	76
Total assets	465,461	459,109
Current liabilities
Accounts payable	11,356	14,894
Accounts payable – related parties	253	1,135
Oil, natural gas liquid and natural gas sales payable	4,050	3,568
Accrued liabilities	14,821	9,947
Accrued liabilities – related parties	126	224
Derivative financial instruments	145	2,985
Total current liabilities	30,751	32,753
Long-term debt	214,450	204,122
Long-term debt - related parties		3,400
Deferred tax liability	39,611	38,020
Other non-current liabilities	6,107	6,052
Equity warrant liability	788	1,565
Equity warrant liability - related parties	1,501	2,994
Asset retirement obligations	2,670	2,683
Derivative financial instruments		1,125
Total liabilities	295,878	292,714
Commitments and contingencies
Stockholders’ equity
Additional paid-in capital	87,382	87,260
Accumulated deficit	(60,451)	(63,517)
Total stockholders’ equity	169,583	166,395
Total liabilities and stockholders’ equity	465,461	459,109
Class A Voting Common Stock
Stockholders’ equity
Common stock	$ 142,652	$ 142,652