Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 349	$ 5,205
Accounts receivable, net:
Joint owners	7,710	15,493
Oil and gas production	19,013	16,625
Other	75	1,497
Total accounts receivable	26,798	33,615
Derivative asset – current	218	85
Other current assets	529	644
Total current assets	27,894	39,549
Oil and gas properties, full cost method of accounting:
Proved	597,615	564,755
Other property and equipment	38,684	38,959
Total	636,299	603,714
Less accumulated depreciation, depletion, and amortization	(429,408)	(423,069)
Total property and equipment – net	206,891	180,645
Deferred financing fees, net	1,791	2,140
Derivative asset – long-term	547	925
Other assets	391	391
Total assets	237,514	223,650
Current liabilities:
Accounts payable	40,904	52,793
Oil and gas production payable	16,961	23,810
Accrued interest	65	31
Other accrued expenses	1,716	1,231
Derivative liability – current	2,860	2,728
Current maturities of long-term debt	2,158	2,142
Total current liabilities	64,664	82,735
Long-term debt, excluding current maturities	68,404	41,790
Other liabilities	57	57
Derivative liability – long-term	2,510	2,274
Future site restoration	9,846	9,888
Total liabilities	145,481	136,744
Stockholders’ Equity
Preferred stock, par value $0.01 per share, authorized 1,000,000 shares; -0- issued and outstanding	0	0
Common stock, par value $0.01 per share, authorized 200,000,000 shares; 93,676,095 and 92,906,049 issued and outstanding, respectively	937	929
Additional paid-in capital	253,670	253,193
Accumulated deficit	(161,905)	(166,609)
Accumulated other comprehensive (loss) income	(669)	(607)
Total stockholders’ equity	92,033	86,906
Total liabilities and stockholders’ equity	$ 237,514	$ 223,650