CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 1,754	$ 11,620
Accounts receivable - trade	15,107	21,874
Restricted investments in U.S. Treasury Bonds-available for sale, at fair value	138	131
Other current assets	2,370	1,859
Total current assets	19,369	35,484
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 $18,179 and $18,015 as of June 30, 2014 and December 31, 2013)	357,119	335,354
Property and equipment-at cost, net	18,790	18,772
Restricted investments in U.S. Treasury Bonds-available for sale, at fair value	1,242	1,183
Other assets	3,879	3,969
Derivative financial instruments	14	43
Total other assets	381,044	359,321
Total assets	400,413	394,805
Current Liabilities
Current maturities of debentures and other long-term liabilities	1,663	1,936
Accounts payable and accruals	36,864	39,174
Derivative financial instruments	2,872	3,517
Total current liabilities	41,399	44,627
Long-Term Liabilities
Revolving Loan Credit Facility	81,500	94,500
Other long-term liabilities, less current portion	29,799	28,113
Debentures, less current portion	1,472	1,472
Total noncurrent liabilities	112,771	124,085
Commitments and Contingencies
Stockholders' Equity
8% convertible preferred stock, par value $.0001; authorized 10,000,000 shares, issued and outstanding, 10,703 shares in 2014 and 2013 (aggregate liquidation preference $128 in 2014 and 2013)	128	128
Common stock - $.0001 par value; authorized, 100,000,000 shares; issued 73,684,750 shares in 2014 and 72,887,650 shares in 2013	7	7
Additional paid-in-capital	471,606	470,441
Accumulated deficit	(225,708)	(244,673)
Accumulated other comprehensive income, net of applicable income taxes of $138 in 2014 and $124 in 2013	210	190
Total stockholders' equity	246,243	226,093
Total liabilities and stockholders' equity	$ 400,413	$ 394,805