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Discontinued Operations (Tables)
6 Months Ended
Jun. 30, 2015
Total Assets and Liabilities of Discontinued Operations  
Discontinued Oil and Gas Operations - Liabilities

   June 30,  December 31,
   2015  2014
       
Current Liabilities:          
Trade payables  $3   $3 
Revenues and royalties payable   23    18 
Accrued commitments and contingencies   1,615    3,165 
Accrued liabilities and other   76    51 
 Total Current Liabilities   1,717    3,237 
 Total Liabilities of Discontinued Operations  $1,717   $3,237