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Business Segment Information (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin | [1] |  |  |  |  |  |  |  |  | $ 347,264 | $ 280,360 | $ 262,333 |
Revenues |  | $ 847,282 | $ 964,114 | $ 1,015,049 | $ 1,019,719 | $ 961,035 | $ 1,090,293 | $ 1,068,694 | $ 1,014,808 | 3,846,164 | 4,134,830 | 3,367,361 |
Capital Expenditures | [2] |  |  |  |  |  |  |  |  | 644,548 | 704,205 | 426,298 |
ExternalCustomerRevenues |  |  |  |  |  |  |  |  |  | 3,846,164 | 4,134,830 | 3,367,361 |
IntersegmentRevenues | [3] |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Pipeline Transportation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin |  |  |  |  |  |  |  |  |  | 61,231 | 64,349 | 58,039 | [1]
Revenues |  |  |  |  |  |  |  |  |  | 83,157 | 82,585 | 70,782 |
Capital Expenditures |  |  |  |  |  |  |  |  |  | 46,611 | 130,787 | 59,345 | [2]
ExternalCustomerRevenues |  |  |  |  |  |  |  |  |  | 66,760 | 65,452 | 56,198 |
IntersegmentRevenues |  |  |  |  |  |  |  |  |  | 16,397 | 17,133 | 14,584 |
Offshore Pipeline Transportation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin |  |  |  |  |  |  |  |  |  | 71,598 | 44,530 | 38,500 | [1]
Revenues |  |  |  |  |  |  |  |  |  | 3,296 | 3,923 | 5,508 |
Capital Expenditures |  |  |  |  |  |  |  |  |  | 37,639 | 94,286 | 269,365 | [2]
ExternalCustomerRevenues |  |  |  |  |  |  |  |  |  | 3,296 | 3,923 | 5,508 |
IntersegmentRevenues |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Refinery Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin |  |  |  |  |  |  |  |  |  | 84,851 | 75,361 | 72,883 | [1]
Revenues |  |  |  |  |  |  |  |  |  | 207,401 | 205,985 | 196,017 |
Capital Expenditures |  |  |  |  |  |  |  |  |  | 2,385 | 3,258 | 2,692 | [2]
ExternalCustomerRevenues |  |  |  |  |  |  |  |  |  | 218,297 | 216,860 | 205,110 |
IntersegmentRevenues |  |  |  |  |  |  |  |  |  | (10,896) | (10,875) | (9,093) |
Marine Transportation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin |  |  |  |  |  |  |  |  |  | 86,239 | 47,726 | 37,528 | [1]
Revenues |  |  |  |  |  |  |  |  |  | 229,282 | 152,542 | 118,204 |
Capital Expenditures |  |  |  |  |  |  |  |  |  | 232,783 | 260,736 | 37,188 | [2]
ExternalCustomerRevenues |  |  |  |  |  |  |  |  |  | 214,039 | 131,049 | 99,016 |
IntersegmentRevenues |  |  |  |  |  |  |  |  |  | 15,243 | 21,493 | 19,188 |
Supply And Logistics [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin |  |  |  |  |  |  |  |  |  | 43,345 | 48,394 | 55,383 | [1]
Revenues |  |  |  |  |  |  |  |  |  | 3,323,028 | 3,689,795 | 2,976,850 |
Capital Expenditures |  |  |  |  |  |  |  |  |  | 325,130 | 215,138 | 57,708 | [2]
ExternalCustomerRevenues |  |  |  |  |  |  |  |  |  | 3,343,772 | 3,717,546 | 3,001,529 |
IntersegmentRevenues |  |  |  |  |  |  |  |  |  | (20,744) | (27,751) | (24,679) |
SEKCO [Member] | Pipeline Transportation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  |  | $ 36,100 | $ 94,300 |  |
Gulf Of Mexico Crude Oil Pipelines [Member] | Pipeline Transportation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  |  |  |  | $ 205,600 |
[1] | A reconciliation of Segment Margin to income from continuing operations before income taxes for each year is presented below.
[2] | Capital expenditures include maintenance and growth capital expenditures, such as fixed asset additions (including enhancements to existing facilities and construction of internal growth projects) as well as acquisitions of businesses and interests in equity investees. In addition to construction of internal growth projects, capital spending in our Offshore pipeline transportation segment included $36.1 million and $94.3 million during the years ended December 31, 2014 and December 31, 2013 representing capital contributions to our SEKCO equity investee to fund our share of the construction costs for its pipeline. During 2014, capital spending in our marine transportation segment included $157 million for our purchase of the M/T American Phoenix. During 2013, capital spending in our marine segment also included $230.9 million for the acquisition of our offshore marine transportation assets. During 2012, capital spending in our pipeline transportation segment also included $205.6 million for the acquisition of interests in several Gulf of Mexico pipelines
[3] | Intersegment sales were conducted under terms that we believe were no more or less favorable than then-existing market conditions.

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