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Derivative Financial Instruments Fair Value (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013
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Fair value of derivative assets and liabilities |  |
Price Risk Derivatives, at Fair Value, Net | $ (140,000,000) | $ 21,500,000
Derivative asset current | 3,613,000 | 21,559,000
Derivative asset noncurrent | 1,300,000 | 30,951,000
Derivative liability current | 92,088,000 | 26,380,000
Derivatives liability noncurrent | 52,847,000 | 4,640,000
Derivatives not designated as hedging instruments |  |
Fair value of derivative assets and liabilities |  |
Derivative asset current | 3,613,000 | 21,559,000
Derivative asset noncurrent | 1,300,000 | 30,951,000
Derivative liability current | 92,088,000 | 26,380,000
Derivatives liability noncurrent | 52,847,000 | 4,640,000
Level 2 | Derivatives not designated as hedging instruments | Fair Value, Measurements, Recurring [Member] |  |
Fair value of derivative assets and liabilities |  |
Derivative assets not designated as hedging instruments | 4,913,000 | 52,510,000
Derivative liabilities not designated as hedging instruments | $ 144,935,000 | $ 31,020,000

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