CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 95,367	$ 26,854
Restricted cash	681	1,001
Accounts receivable, net	61,187	87,842
Other receivables	1,344	6,331
Related party receivables	0	3,341
Prepaid expenses and other	8,047	1,125
Derivatives	0	16,423
Total current assets	166,626	142,917
Property and equipment
Oil and gas properties, successful efforts method, net	215,352	763,337
Other property and equipment, net	107,028	444,269
Total property and equipment, net	322,380	1,207,606
Other assets
Operating lease right-of-use assets, net	0
Equity method investment	0	1,100
Deferred financing costs, net	1,581	3,195
Deposits and other long-term assets	7,993	65
Derivatives	0	2,947
Total other assets	9,574	7,307
Total assets	498,580	1,357,830
Current liabilities
Current portion of debt	224,000	690,123
Accounts payable and accrued liabilities	64,137	247,439
Advances from non-operators	811	5,193
Advances from related party	3,175	9,839
Asset retirement obligations, current portion	34	2,079
Operating lease liability, current portion	88
Derivatives	0	1,710
Total current liabilities not subject to compromise	292,245	956,383
Long-term liabilities
Asset retirement obligations, net of current portion	13,149	9,473
Long-term debt, net	0	174,000
Operating lease liabilities, net of current portion	189
Derivatives	0	180
Other long-term liabilities	3,360	1,667
Total long-term liabilities not subject to compromise	16,698	185,320
Liabilities subject to compromise	896,862	0
Total liabilities	1,205,805	1,141,703
Commitments and contingencies (Note 19)
Stockholders’ equity
Additional paid in capital	1,512,716	1,503,382
Accumulated deficit	(1,983,351)	(1,532,813)
Total stockholders’ equity	(470,597)	(29,393)
Noncontrolling interest	(236,628)	245,520
Total equity	(707,225)	216,127
Total liabilities and stockholders’ equity	498,580	1,357,830
Preferred Class A
Long-term liabilities
Preferred stock, $0.0001 par value	0	0
Preferred Class B
Long-term liabilities
Preferred stock, $0.0001 par value	0	0
Common Class A
Stockholders’ equity
Common stock, $0.0001 par value	18	18
Common Class C
Stockholders’ equity
Common stock, $0.0001 par value	$ 20	$ 20