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Derivative Instruments (Details) (USD $)
3 Months Ended
Mar. 31, 2014
MMBTU
Swap [Member] | April - December 2014 | Natural Gas [Member]
 
Oil and gas contracts  
Daily Volumes 45,000
Weighted Average Price $ 4.14
Swap LLS [Member] | April - December 2014 | Crude Oil [Member]
 
Oil and gas contracts  
Daily Volumes 400
Weighted Average Price $ 101.15
Swap LLS [Member] | April - June 2014 | Crude Oil [Member]
 
Oil and gas contracts  
Daily Volumes 450
Weighted Average Price $ 100.58
Swap WTI [Member] | April - December 2014 | Crude Oil [Member]
 
Oil and gas contracts  
Daily Volumes 350
Weighted Average Price $ 93.26