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Commitments and Contingencies (Details) (USD $)
0 Months Ended
Dec. 31, 2012
Stevenson v. Wayne Kirk, Michael J. Mauceli, Reef Global Energy Ventures II
Jan. 24, 2012
Stevenson v. Wayne Kirk, Michael J. Mauceli, Reef Global Energy Ventures II
Minimum
Lawsuit pending an arbitration
Dec. 31, 2012
TEPCO, LLC, Kiawah Resources, LLC, Meritage Energy, LLC and Ralph S. O'Connor v. Reef Exploration, L.P., RCWI, L.P., El Paso E&P Company, L.P., and Anchor International of Texas LP
Commitments and contingencies      
Damages sought by plaintiffs   $ 2,500,000  
Loss accrual recorded $ 0   $ 0