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DEBT (Tables)
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12 Months Ended |
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Dec. 31, 2013
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| DEBT [Abstract] |
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| Schedule of Long-term Debt Instruments [Table Text Block] |
Long-term debt consisted of the following: | | | | | | | | | | | | | | | | | | December 31, | | Maturity | | 2013 | | 2012 | | | | | | (Thousands of Dollars) | $1.5 billion revolving credit agreement | | 2017 | | | $ | 503,036 |
| | $ | 440,330 |
| 4.75% senior notes | | 2022 | | | 250,000 |
| | 250,000 |
| 6.75% senior notes | | 2021 | | | 300,000 |
| | — |
| 4.80% senior notes | | 2020 | | | 450,000 |
| | 450,000 |
| 7.65% senior notes | | 2018 | | | 350,000 |
| | 350,000 |
| 6.05% senior notes | | 2013 | | | — |
| | 229,932 |
| 5.875% senior notes | | 2013 | | | — |
| | 250,000 |
| 7.625% subordinated notes | | 2043 | | | 402,500 |
| | — |
| Gulf Opportunity Zone revenue bonds | 2038 | thru | 2041 | | 365,440 |
| | 365,440 |
| UK term loan | | 2013 | | | — |
| | 34,142 |
| Port Authority of Corpus Christi note payable | | 2015 | | | — |
| | 577 |
| Net fair value adjustments and unamortized discounts | | N/A | | | 34,577 |
| | 40,583 |
| Total debt | | | | | 2,655,553 |
| | 2,411,004 |
| Less current portion | | | | | — |
| | 286,422 |
| Long-term debt, less current portion | | | | | $ | 2,655,553 |
| | $ | 2,124,582 |
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| Schedule of Maturities of Long-term Debt [Table Text Block] |
The long-term debt repayments are due as follows (in thousands): | | | | | 2014 | $ | — |
| 2015 | — |
| 2016 | — |
| 2017 | 503,036 |
| 2018 | 350,000 |
| Thereafter | 1,767,940 |
| Total repayments | 2,620,976 |
| Net fair value adjustments and unamortized discounts | 34,577 |
| Total debt | $ | 2,655,553 |
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| Schedule of GoZone Bonds [Table Text Block] |
The following table summarizes the Gulf Opportunity Zone Revenue Bonds outstanding as of December 31, 2013: | | | | | | | | | | | | | | | | | | | | | | | Date Issued | | Maturity Date | | Amount Outstanding | | Amount of Letter of Credit | | Amount Received from Trustee | | Amount Remaining in Trust | | Average Annual Interest Rate | | | | | (Thousands of Dollars) | | | June 26, 2008 | | June 1, 2038 | | $ | 55,440 |
| | $ | 56,169 |
| | $ | 55,440 |
| | $ | — |
| | 0.10 | % | July 15, 2010 | | July 1, 2040 | | 100,000 |
| | 101,315 |
| | 100,000 |
| | — |
| | 0.10 | % | October 7, 2010 | | October 1, 2040 | | 50,000 |
| | 50,658 |
| (a) | 24,580 |
| | 25,420 |
| | 0.11 | % | December 29, 2010 | | December 1, 2040 | | 85,000 |
| | 86,118 |
| (a) | 26,924 |
| | 58,076 |
| | 0.11 | % | August 29, 2011 | | August 1, 2041 | | 75,000 |
| | 75,986 |
| | 75,000 |
| | — |
| | 0.10 | % | | | Total | | $ | 365,440 |
| | $ | 370,246 |
| | $ | 281,944 |
| | $ | 83,496 |
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| | (a) | Letters of credit issued under the 2012 Revolving Credit Agreement. |
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