|
DERIVATIVES AND RISK MANAGEMENT ACTIVITIES Table 1 (Details) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Derivatives, Fair Value | ||
| Asset Derivatives | $ 79,549 | $ 147,797 |
| Liability Derivatives | (117,130) | (160,889) |
|
Designated as Hedging Instrument
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 26,855 | 124,503 |
| Liability Derivatives | (71,225) | (148,990) |
|
Designated as Hedging Instrument | Commodity contracts | Other current assets
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 0 | 36,116 |
| Liability Derivatives | 0 | (33,616) |
|
Designated as Hedging Instrument | Commodity contracts | Other long-term assets, net
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 25,634 | 86,052 |
| Liability Derivatives | (20,257) | (66,175) |
|
Designated as Hedging Instrument | Commodity contracts | Accrued liabilities
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 640 | 0 |
| Liability Derivatives | (24,286) | 0 |
|
Designated as Hedging Instrument | Commodity contracts | Other long-term liabilities
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 0 | 0 |
| Liability Derivatives | (5,665) | 0 |
|
Designated as Hedging Instrument | Interest rate swaps | Other long-term assets, net
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 581 | 2,335 |
| Liability Derivatives | 0 | 0 |
|
Designated as Hedging Instrument | Interest rate swaps | Accrued liabilities
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 0 | 0 |
| Liability Derivatives | (9,796) | (22,009) |
|
Designated as Hedging Instrument | Interest rate swaps | Other long-term liabilities
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 0 | 0 |
| Liability Derivatives | (11,221) | (27,190) |
|
Not Designated as Hedging Instrument
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 52,694 | 23,294 |
| Liability Derivatives | (45,905) | (11,899) |
|
Not Designated as Hedging Instrument | Commodity contracts | Other current assets
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 30,863 | 15,568 |
| Liability Derivatives | (8,654) | (5,956) |
|
Not Designated as Hedging Instrument | Commodity contracts | Other long-term assets, net
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 0 | 7,207 |
| Liability Derivatives | 0 | 0 |
|
Not Designated as Hedging Instrument | Commodity contracts | Accrued liabilities
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 21,831 | 519 |
| Liability Derivatives | (36,377) | (5,943) |
|
Not Designated as Hedging Instrument | Commodity contracts | Other long-term liabilities
|
||
| Derivatives, Fair Value | ||
| Asset Derivatives | 0 | 0 |
| Liability Derivatives | $ (874) | $ 0 |