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DERIVATIVES AND RISK MANAGEMENT ACTIVITIES Table 1 (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Derivatives, Fair Value |  |
Asset Derivatives | $ 42,022 | $ 80,468
Liability Derivatives | (33,905) | (122,025)
Designated as Hedging Instrument |  |
Derivatives, Fair Value |  |
Asset Derivatives | 0 | 1,471
Liability Derivatives | (130) | (41,722)
Designated as Hedging Instrument | Commodity contracts | Other current assets |  |
Derivatives, Fair Value |  |
Asset Derivatives | 0 | 1,471
Liability Derivatives | 0 | (811)
Designated as Hedging Instrument | Commodity contracts | Accrued liabilities |  |
Derivatives, Fair Value |  |
Asset Derivatives | 0 | 0
Liability Derivatives | (130) | 0
Designated as Hedging Instrument | Interest rate swaps | Accrued liabilities |  |
Derivatives, Fair Value |  |
Asset Derivatives | 0 | 0
Liability Derivatives | 0 | (40,911)
Not Designated as Hedging Instrument |  |
Derivatives, Fair Value |  |
Asset Derivatives | 42,022 | 78,997
Liability Derivatives | (33,775) | (80,303)
Not Designated as Hedging Instrument | Commodity contracts | Other current assets |  |
Derivatives, Fair Value |  |
Asset Derivatives | 16,168 | 22,269
Liability Derivatives | (11,220) | (13,571)
Not Designated as Hedging Instrument | Commodity contracts | Accrued liabilities |  |
Derivatives, Fair Value |  |
Asset Derivatives | 4,523 | 17,406
Liability Derivatives | (6,626) | (36,616)
Not Designated as Hedging Instrument | Commodity contracts | Other long-term assets, net |  |
Derivatives, Fair Value |  |
Asset Derivatives | 15,883 | 39,322
Liability Derivatives | (8,906) | (30,116)
Not Designated as Hedging Instrument | Commodity contracts | Other long-term liabilities |  |
Derivatives, Fair Value |  |
Asset Derivatives | 5,448 | 0
Liability Derivatives | $ (7,023) | $ 0

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