Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 158,572	$ 18,243
Revenue receivable	8,667	16,485
Joint interest billing receivable	28,699	46,778
Derivative asset	5,659	8,631
Other current assets	6,936	6,413
Total current assets	208,533	96,550
Oil and gas properties:
Oil and gas properties, full cost method	1,285,971	2,222,753
Unevaluated oil and gas properties	28,524	109,119
Accumulated depreciation, depletion and amortization	(1,095,002)	(1,648,060)
Oil and gas properties, net	219,493	683,812
Other property and equipment	15,383	14,953
Accumulated depreciation of other property and equipment	(11,367)	(10,313)
Total property and equipment	223,509	688,452
Other assets, net of accumulated depreciation and amortization of $9,514 and $7,847, respectively	4,929	5,893
Total assets	436,971	790,895
Current liabilities:
Accounts payable to vendors	67,265	102,954
Advances from co-owners	24,850	12,819
Oil and gas revenue payable	28,800	22,333
Accrued interest and preferred stock dividend	4,056	12,764
Asset retirement obligation	5,378	2,756
Accrued acquisition cost	4,790	17,690
Other accrued liabilities	4,300	5,394
Total current liabilities	139,439	176,710
Bank debt		75,000
10% Senior Notes	350,000	350,000
Asset retirement obligation	43,217	52,214
Other long-term liability	$ 396	$ 62
Commitments and contingencies
Stockholders’ equity (deficit):
Preferred stock, $.001 par value; authorized 5,000 shares; issued and outstanding 1,495 shares	$ 1	$ 1
Common stock, $.001 par value; authorized 150,000 shares; issued and outstanding 65,068 and 64,721 shares, respectively	65	65
Paid-in capital	290,066	285,957
Accumulated other comprehensive income	3,554	5,420
Accumulated deficit	(389,767)	(154,534)
Total stockholders’ equity (deficit)	(96,081)	136,909
Total liabilities and stockholders’ equity (deficit)	$ 436,971	$ 790,895