CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Operating revenue:
Oil production	$ 71,116	$ 105,013	$ 204,102	$ 324,105
Natural gas production	15,601	17,367	43,327	72,611
Natural gas liquids production	6,666	5,980	15,119	29,379
Other operational income	1,044	1,392	1,737	3,184
Derivative income, net	0	2,444	0	4,871
Total operating revenue	94,427	132,196	264,285	434,150
Operating expenses:
Lease operating expenses	16,976	24,244	55,349	79,250
Transportation, processing and gathering expenses	10,633	18,208	18,657	55,851
Production taxes	835	2,052	1,894	6,394
Depreciation, depletion and amortization	58,918	61,936	166,707	226,309
Write-down of oil and gas properties	36,484	295,679	284,337	1,011,385
Accretion expense	10,082	6,498	30,147	19,315
Salaries, general and administrative expenses	15,425	19,552	48,193	52,977
Incentive compensation expense	2,160	794	11,809	3,621
Restructuring fees	5,784	0	16,173	0
Other operational expenses	9,059	442	49,266	1,612
Derivative expense, net	199	0	687	0
Total operating expenses	166,555	429,405	683,219	1,456,714
Loss from operations	(72,128)	(297,209)	(418,934)	(1,022,564)
Other (income) expenses:
Interest expense	16,924	10,872	49,764	31,709
Interest income	(58)	(47)	(474)	(235)
Other income	(272)	(411)	(840)	(1,167)
Other expense	16	148	27	148
Total other expenses	16,610	10,562	48,477	30,455
Loss before income taxes	(88,738)	(307,771)	(467,411)	(1,053,019)
Provision (benefit) for income taxes:
Current	(991)	0	(4,178)	0
Deferred	1,888	(15,806)	10,947	(280,760)
Total income taxes	897	(15,806)	6,769	(280,760)
Net loss	$ (89,635)	$ (291,965)	$ (474,180)	$ (772,259)
Basic loss per share (in usd per share)	$ (16.01)	$ (52.82)	$ (84.90)	$ (139.83)
Diluted loss per share (in usd per share)	$ (16.01)	$ (52.82)	$ (84.90)	$ (139.83)
Average shares outstanding (in shares)	5,600	5,528	5,585	5,523
Average shares outstanding assuming dilution (in shares)	5,600	5,528	5,585	5,523