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DERIVATIVES AND RISK MANAGEMENT ACTIVITIES (Tables)
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9 Months Ended |
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Sep. 30, 2014
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] |
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| Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] |
The fair values of our derivative instruments included in our consolidated balance sheets were as follows: | | | | | | | | | | | | | | | | | | | | | | Asset Derivatives | | Liability Derivatives | | Balance Sheet Location | | September 30,
2014 | | December 31, 2013 | | September 30,
2014 | | December 31, 2013 | | | | (Thousands of Dollars) | Derivatives Designated as Hedging Instruments: | | | | | | | | | | Commodity contracts | Other current assets | | $ | 470 |
| | $ | — |
| | $ | (63 | ) | | $ | — |
| Commodity contracts | Accrued liabilities | | — |
| | — |
| | — |
| | (130 | ) | | | | | | | | | | | Derivatives Not Designated as Hedging Instruments: | | | | | | | | | | Commodity contracts | Other current assets | | 25,508 |
| | 16,168 |
| | (16,035 | ) | | (11,220 | ) | Commodity contracts | Other long-term assets, net | | 1,754 |
| | 15,883 |
| | (1,521 | ) | | (8,906 | ) | Commodity contracts | Accrued liabilities | | 2,807 |
| | 4,523 |
| | (4,422 | ) | | (6,626 | ) | Commodity contracts | Other long-term liabilities | | 246 |
| | 5,448 |
| | (351 | ) | | (7,023 | ) | Total | | | 30,315 |
| | 42,022 |
| | (22,329 | ) | | (33,775 | ) | | | | | | | | | | | Total Derivatives | | | $ | 30,785 |
| | $ | 42,022 |
| | $ | (22,392 | ) | | $ | (33,905 | ) |
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| Derivatives Assets And Liabilities Eligible for Offset Net [Table Text Block] |
The following are the net amounts presented on the consolidated balance sheets: | | | | | | | | | | Commodity Contracts | | September 30,
2014 | | December 31, 2013 | | | (Thousands of Dollars) | Net amounts of assets presented in the consolidated balance sheets | | $ | 10,113 |
| | $ | 11,925 |
| Net amounts of liabilities presented in the consolidated balance sheets | | $ | (1,720 | ) | | $ | (3,808 | ) |
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| Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Text Block] |
The earnings impact of our derivative activity was as follows: | | | | | | | | | | | | | | | | Derivatives Designated as Fair Value Hedging Instruments | | Income Statement Location | | Amount of Gain (Loss) Recognized in Income on Derivative (Effective Portion) | | Amount of Gain (Loss) Recognized in Income on Hedged Item | | Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion) | | | | | (Thousands of Dollars) | Three months ended September 30, 2014: | | | | | | | | | Commodity contracts | | Cost of product sales | | $ | 1,219 |
| | $ | (1,058 | ) | | $ | 161 |
| | | | | | | | | | Three months ended September 30, 2013: | | | | | | | | | Commodity contracts | | Cost of product sales | | $ | (3,853 | ) | | $ | 4,184 |
| | $ | 331 |
| | | | | | | | | | Nine months ended September 30, 2014: | | | | | | | | | Commodity contracts | | Cost of product sales | | $ | 2,178 |
| | $ | (2,840 | ) | | $ | (662 | ) | | | | | | | | | | Nine months ended September 30, 2013: | | | | | | | | | Commodity contracts | | Cost of product sales | | $ | 4,059 |
| | $ | (6,298 | ) | | $ | (2,239 | ) |
| | | | | | | | | | | | | | | | Derivatives Designated as Cash Flow Hedging Instruments | | Amount of Gain (Loss) Recognized in OCI on Derivative (Effective Portion) | | Income Statement Location (a) | | Amount of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) | | Amount of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion) | | | (Thousands of Dollars) | | | | (Thousands of Dollars) | Three months ended September 30, 2014: | | | | | | | | | Interest rate swaps | | $ | — |
| | Interest expense, net | | $ | (2,625 | ) | | $ | — |
| | | | | | | | | | Three months ended September 30, 2013: | | | | | | | | | Interest rate swaps | | $ | — |
| | Interest expense, net | | $ | (1,653 | ) | | $ | — |
| | | | | | | | | | Nine months ended September 30, 2014: | | | | | | | | | Interest rate swaps | | $ | — |
| | Interest expense, net | | $ | (8,062 | ) | | $ | — |
| | | | | | | | | | Nine months ended September 30, 2013: | | | | | | | | | Interest rate swaps | | $ | 7,213 |
| | Interest expense, net | | $ | (4,615 | ) | | $ | — |
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| | (a) | Amounts are included in specified location for both the gain (loss) reclassified from accumulated OCI into income (effective portion) and the gain (loss) recognized in income on derivative (ineffective portion). |
| | | | | | | | Derivatives Not Designated as Hedging Instruments | | Income Statement Location | | Amount of Gain (Loss) Recognized in Income | | | | | (Thousands of Dollars) | Three months ended September 30, 2014: | | | | | Commodity contracts | | Cost of product sales | | $ | 6,680 |
| | | | | | Three months ended September 30, 2013: | | | | | Commodity contracts | | Cost of product sales | | $ | (4,941 | ) | | | | | | Nine months ended September 30, 2014: | | | | | Commodity contracts | | Cost of product sales | | $ | 2,270 |
| | | | | | Nine months ended September 30, 2013: | | | | | Commodity contracts | | Cost of product sales | | $ | (4,492 | ) | Commodity contracts | | (Loss) income from discontinued operations | | (218 | ) | Total | | | | $ | (4,710 | ) |
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