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Consolidated Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Operating activities      
Net income (loss) $ 4,680 $ (1,745) $ (2,018)
Adjustments to reconcile net income (loss) to net cash Provided by operating activities      
Depreciation, depletion, and amortization 2,703 2,627 2,571
Amortization of loan fees-interest expenses 77 97  
Accretion on asset retirement obligation 96 112 48
Impairment   4,957  
(Gain) loss on sale of vehicles/equipment (37) (15)  
Compensation and services paid in stock options 165 111 174
Deferred income tax expense (benefit) 118 (1,089) (169)
(Gain) loss on derivatives 407 (626) 1,313
Changes in assets and liabilities      
Accounts receivable (62) (369) (20)
Accounts receivable-related party 728 (993)  
Inventory and other assets (283) (18) (115)
Accounts payable-trade 653 (191) 41
Accounts payable- other (728) 993  
Accrued liabilities 139 268 (137)
Settlement on asset retirement obligations (165) (75)  
Net cash provided by operating activities 8,491 4,044 1,688
Investing activities      
Additions to oil and gas properties (8,315) (3,533) (1,020)
Proceeds from sale of oil and gas properties 36   142
Net additions to Methane Project (811) (69) (184)
Net additions to pipeline facilities   (22) (418)
Net additions to other property & equipment (48) (134)  
Derivative costs and settlements (1,236)    
Net cash (used in) investing activities (10,374) (3,758) (1,480)
Financing activities      
Proceeds from exercise of options/warrants 28 15 111
Proceeds from borrowings 2,030    
Repayment of borrowings (188) (532) (142)
Loan fees (60) (50)  
Net cash provided by (used in) financing activities 1,810 (567) (31)
Net change in cash and change equivalents (73) (281) 177
Cash and cash equivalents, beginning of period 141 422 245
Cash and cash equivalents, end of period 68 141 422
Supplemental cash flow information:      
Interest paid 565 562 634
Supplemental non-cash investing and financing activities:      
Financed Company vehicles 262 44 196
Asset retirement obligations capitalized $ 559 $ 950 $ (254)