CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current Assets
Cash and cash equivalents	$ 8,131	$ 10,614
Accounts receivable - trade	12,920	13,660
Restricted investments in U.S. Treasury Bonds-available for sale, at fair value	139	135
Derivative financial instruments	972	309
Other current assets	1,009	948
Total current assets	23,171	25,666
Other Assets
Oil and gas properties-at cost, based on full cost method of accounting, net of accumulated depreciation, depletion and amortization (includes unproved properties excluded from amortization of $23,033 and $22,963 as of June 30, 2012 and December 31, 2011)	288,472	275,443
Property and equipment-at cost, net	16,797	16,926
Restricted investments in U.S. Treasury Bonds-available for sale, at fair value	1,257	1,214
Other assets	4,262	4,383
Total other assets	310,788	297,966
Total Assets	333,959	323,632
Current Liabilities
Current maturities of debentures and other long-term liabilities	2,357	2,831
Accounts payable and accruals	30,114	38,234
Derivative financial instruments		980
Total current liabilities	32,471	42,045
Long-Term Liabilities
Debentures, less current portion	1,472	1,486
Other long-term liabilities, less current portion	16,459	16,510
Line of credit	99,500	89,500
Total noncurrent liabilities	117,431	107,496
Commitments and Contingencies
Stockholders' Equity
8% convertible preferred stock, par value $.0001; authorized 10,000,000 shares, issued and outstanding, 10,703 shares and 10,703 in 2012 and 2011, respectively (aggregate liquidation preference $128 in 2012 and $128 in 2011)	128	128
Common stock - $.0001 par value; authorized, 100,000,000 shares; issued 71,695,289 shares in 2012 and 71,518,810 shares in 2011	7	7
Additional paid-in-capital	465,864	464,985
Accumulated deficit	(281,508)	(290,578)
Accumulated other comprehensive income, net of applicable income taxes of $192 in 2012 and $181 in 2011	294	277
Total stockholders' equity excluding common stock in Treasury	184,785	174,819
Less common stock in Treasury-at cost; 632,250 shares in 2012 and 2011	728	728
Total stockholders' equity	184,057	174,091
Total Liabilities and Stockholders' Equity	$ 333,959	$ 323,632