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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2014
Fair Value Measurements [Abstract]  
Summary of financial assets and liabilities at fair value

 

  Fair Value Measurements Using 
(in thousands) Level 1  Level 2  Level 3  Total 
September 30, 2014            
Assets:                
    Commodity derivatives $-  $151  $-  $151 
                 
December 31, 2013                
Liabilities:                
    Commodity derivatives $-  $326  $-  $326