XML 24 R30.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note 3 - Oil and Gas Leases (Detail) - Oil and gas leasing activities (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Gross revenues    
Royalty interests $ 2,558,605 $ 1,537,876
Working interests   129
Seismic and Lease Fees 259,001 264,200
2,817,606 1,802,205
Production costs 219,224 138,801
Results before income tax expense 2,598,382 1,663,404
Estimated income tax expense (40%) 1,039,353 665,362
Results of operations from producing activities excluding corporate overhead $ 1,559,029 $ 998,042