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(4) Investment in Savoy (Tables)
9 Months Ended
Sep. 30, 2013
Equity Investment In SELLP [Abstract]  
Savoy Condensed Balance Sheet
       
   
2013
 
       
Current assets
  $ 25,651  
Oil and gas properties, net
    24,156  
    $ 49,807  
         
Total liabilities
  $ 14,354  
Partners' capital
    35,453  
    $ 49,807  
Savoy Condensed Statement of Operations
   
2013
   
2012
 
             
Revenue
  $ 29,444     $ 24,585  
Expenses
    (19,471 )     (17,931 )
Net  income
  $ 9,973     $ 6,654