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Note 3 - Oil and Gas Leases (Tables)
 12 Months Ended
Dec. 31, 2012
Results of Operations for Oil and Gas Producing Activities Disclosure [Table Text Block]
   
2012
   
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  
Oil and Gas Net Production, Average Sales Price and Average Production Costs Disclosure [Table Text Block]
   
2012
   
2011
 
             
Net gas produced (MCF)
    92,470       70,105  
Net oil produced (Bbl)
    19,543       9,801