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Business Segment Information | 12 Months Ended
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Dec. 31, 2011
Business Segment Information [Abstract] |
Business Segment Information | 12. Business Segment Information Our operations consist of three operating segments: (1) Pipeline Transportation – interstate, intrastate and offshore crude oil, and to a lesser extent, CO 2 pipeline transportation; (2) Refinery Services – processing high sulfur (or "sour") gas streams as part of refining operations to remove the sulfur and sale of the related by-product, and (3) Supply and Logistics – purchasing, transporting, storing, blending and marketing of crude oil and petroleum products (primarily fuel oil, asphalt, and other heavy refined products). Substantially all of our revenues are derived from, and substantially all of our assets are located in the United States. We define Segment Margin as revenues less product costs, operating expenses (excluding non-cash charges, such as depreciation and amortization), and segment general and administrative expenses, plus our equity in distributable cash generated by our equity investees. In addition, our Segment Margin definition excludes the non-cash effects of our stock appreciation rights plan and includes the non-income portion of payments received under direct financing leases. Our chief operating decision maker (our Chief Executive Officer) evaluates segment performance based on a variety of measures including Segment Margin, segment volumes where relevant, and maintenance capital investment.
|  | Pipeline Transportation |  |  | Refinery Services |  |  | Supply & Logistics |  |  | Total |
Year Ended December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin (a) |  | $ | 67,908 |  |  | $ | 74,618 |  |  | $ | 59,975 |  |  | $ | 202,501 |
Capital expenditures (b) |  | $ | 14,501 |  |  | $ | 1,846 |  |  | $ | 170,647 |  |  | $ | 186,994 |
Net fixed and other long-term assets (c) |  | $ | 594,102 |  |  | $ | 384,340 |  |  | $ | 376,298 |  |  | $ | 1,354,740 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
External customers |  | $ | 50,391 |  |  | $ | 210,394 |  |  | $ | 2,828,884 |  |  | $ | 3,089,669 |
Intersegment (d) |  |  | 11,799 |  |  |  | (8,683 | ) |  |  | (3,116 | ) |  |  | — |
Total revenues of reportable segments |  | $ | 62,190 |  |  | $ | 201,711 |  |  | $ | 2,825,768 |  |  | $ | 3,089,669 |
Year Ended December 31, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin (a) |  | $ | 48,305 |  |  | $ | 62,923 |  |  | $ | 38,336 |  |  | $ | 149,564 |
Capital expenditures (b) |  | $ | 333,557 |  |  | $ | 1,433 |  |  | $ | 1,740 |  |  | $ | 336,730 |
Net fixed and other long-term assets (c) |  | $ | 604,572 |  |  | $ | 400,164 |  |  | $ | 221,932 |  |  | $ | 1,226,668 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
External customers |  | $ | 45,367 |  |  | $ | 158,456 |  |  | $ | 1,897,501 |  |  | $ | 2,101,324 |
Intersegment (d) |  |  | 10,285 |  |  |  | (7,396 | ) |  |  | (2,889 | ) |  |  | — |
Total revenues of reportable segments |  | $ | 55,652 |  |  | $ | 151,060 |  |  | $ | 1,894,612 |  |  | $ | 2,101,324 |
Year Ended December 31, 2009 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment margin (a) |  | $ | 42,162 |  |  | $ | 51,844 |  |  | $ | 40,484 |  |  | $ | 134,490 |
Capital expenditures (b) |  | $ | 3,043 |  |  | $ | 2,572 |  |  | $ | 23,581 |  |  | $ | 29,196 |
Net fixed and other long-term assets (c) |  | $ | 279,574 |  |  | $ | 409,556 |  |  | $ | 269,753 |  |  | $ | 958,883 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
External customers |  | $ | 44,461 |  |  | $ | 147,240 |  |  | $ | 1,243,659 |  |  | $ | 1,435,360 |
Intersegment (d) |  |  | 6,490 |  |  |  | (5,875 | ) |  |  | (615 | ) |  |  | — |
Total revenues of reportable segments |  | $ | 50,951 |  |  | $ | 141,365 |  |  | $ | 1,243,044 |  |  | $ | 1,435,360 |
(a) | A reconciliation of Segment Margin to income (loss) before income taxes for each year presented is as follows:
|  | Year Ended December 31, |
|  | 2011 |  |  | 2010 |  |  | 2009 |
Segment margin |  | $ | 202,501 |  |  | $ | 149,564 |  |  | $ | 134,490 |
Corporate general and administrative expenses |  |  | (31,685 | ) |  |  | (110,058 | ) |  |  | (36,475 | )
Depreciation, amortization and impairment |  |  | (61,926 | ) |  |  | (53,557 | ) |  |  | (67,586 | )
Net loss on disposal of surplus assets |  |  | (264 | ) |  |  | (12 | ) |  |  | (160 | )
Interest expense |  |  | (35,767 | ) |  |  | (22,924 | ) |  |  | (13,660 | )
Distributable cash from equity investees in excess of equity in earnings |  |  | (16,681 | ) |  |  | (2,284 | ) |  |  | 496 |
Non-cash items not included in segment margin |  |  | (1,531 | ) |  |  | (4,479 | ) |  |  | (4,089 | )
Cash payments from direct financing leases in excess of earnings |  |  | (4,615 | ) |  |  | (4,203 | ) |  |  | (3,758 | )
Income before income taxes |  | $ | 50,032 |  |  | $ | (47,953 | ) |  | $ | 9,258 |
(b) | Capital expenditures include fixed asset additions and acquisitions of businesses.
(c) | Net fixed and other long-term assets is a measure used by management in evaluating the results of our operations on a segment basis. Current assets are not allocated to segments as the amounts are not meaningful in evaluating the success of the segment's operations. Amounts for our Pipeline Transportation segment include our investment in CHOPS totaling $314.7 million and $329.7 million at December 31, 2011 and 2010, respectively. Amounts for our Supply and Logistics segment include investments in equity investees totaling $12.2 million, $13.7 million and $15.1 million at December 31, 2011, 2010 and 2009, respectively.
(d) | Intersegment sales were conducted on an arm's length basis.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8595-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8538-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8971-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8864-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8380-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8984-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8844-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9031-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 15: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8924-108599 + Details
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