| Property, Plant and Equipment [Table Text Block] |
Property, plant and equipment, at cost, consisted of the following: | | | | | | | | | | | | | | Estimated Useful Lives | | December 31, | | | 2013 | | 2012 | | (Years) | | (Thousands of Dollars) | Land | | — | | | $ | 129,731 |
| | $ | 133,341 |
| Land and leasehold improvements | 10 | - | 35 | | 142,122 |
| | 110,575 |
| Buildings | 15 | - | 40 | | 133,531 |
| | 120,499 |
| Pipelines, storage and terminals | 20 | - | 35 | | 3,787,499 |
| | 3,531,925 |
| Rights-of-way | 20 | - | 40 | | 155,833 |
| | 148,021 |
| Construction in progress | | — | | | 152,121 |
| | 243,498 |
| Total | | | | | 4,500,837 |
| | 4,287,859 |
| Less accumulated depreciation and amortization | | | | | (1,190,184 | ) | | (1,049,399 | ) | Property, plant and equipment, net | | | | | $ | 3,310,653 |
| | $ | 3,238,460 |
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