Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Risk Management Activities (Details 5)

v2.4.0.8
Derivative Instruments and Risk Management Activities (Details 5) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Net derivatives asset:  
Fixed price derivative assets $ 708,000
Significant other observable inputs (Level 2) | Commodity swaps
 
Net derivatives asset:  
Fixed price derivative assets 708,214
Total | Commodity swaps
 
Net derivatives asset:  
Fixed price derivative assets $ 708,214