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DEBT (Tables)
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12 Months Ended |
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Dec. 31, 2011
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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 | | 2011 | | 2010 | | | | | | (Thousands of Dollars) | $1.2 billion revolving credit agreement | | 2012 | | | $ | 229,295 |
| | $ | 188,282 |
| 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 |
| | 229,932 |
| 6.875% senior notes | | 2012 | | | 100,000 |
| | 100,000 |
| 7.75% senior notes | | 2012 | | | 250,000 |
| | 250,000 |
| 5.875% senior notes | | 2013 | | | 250,000 |
| | 250,000 |
| Gulf Opportunity Zone revenue bonds | 2038 | thru | 2041 | | 365,440 |
| | 290,440 |
| UK term loan | | 2012 | | | 32,582 |
| | 32,789 |
| Port Authority of Corpus Christi note payable | | 2015 | | | 874 |
| | 1,784 |
| Net fair value adjustments and unamortized discounts | | N/A | | | 34,907 |
| | (6,147 | ) | Total debt | | | | | 2,293,030 |
| | 2,137,080 |
| Less current portion | | | | | 364,959 |
| | 832 |
| Long-term debt, less current portion | | | | | $ | 1,928,071 |
| | $ | 2,136,248 |
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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): | | | | | 2012 | $ | 612,751 |
| 2013 | 479,932 |
| 2014 | — |
| 2015 | — |
| 2016 | — |
| Thereafter | 1,165,440 |
| Total repayments | 2,258,123 |
| Net fair value adjustments and unamortized discounts | 34,907 |
| Total debt | $ | 2,293,030 |
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| Schedule of GoZone Bonds [Table Text Block] |
The following table summarizes Gulf Opportunity Zone Revenue Bonds outstanding as of December 31, 2011: | | | | | | | | | | | | | | | | | | | | | | | 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 |
| | $ | — |
| | 0.18 | % | July 15, 2010 | | July 1, 2040 | | 100,000 |
| | 101,315 |
| | 100,000 |
| | — |
| | 0.18 | % | October 7, 2010 | | October 1, 2040 | | 50,000 |
| | 50,658 |
| | 24,580 |
| | 25,420 |
| | 0.18 | % | December 29, 2010 | | December 1, 2040 | | 85,000 |
| | 86,118 |
| | 835 |
| | 84,165 |
| | 0.18 | % | August 29, 2011 | | August 1, 2041 | | 75,000 |
| | 76,085 |
| | 11,229 |
| | 63,771 |
| | 0.15 | % | | | Total | | $ | 365,440 |
| | $ | 370,345 |
| | $ | 192,084 |
| | $ | 173,356 |
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