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Business Segment Information (Tables) | 6 Months Ended
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Jun. 30, 2025
Segment Reporting [Abstract] |
Schedule of Segment Reporting Information, by Segment | Segment information for the periods presented below was as follows:
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Total
Three Months Ended June 30, 2025 |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |
External Customers | $ | 125,128 |  |  | $ | 79,617 |  |  | $ | 172,603 |  |  | $ | 377,348 |
Intersegment Revenue(1) | 242 |  |  | — |  |  | (242) |  |  | — |
Total revenues of reportable segments(2) | $ | 125,370 |  |  | $ | 79,617 |  |  | $ | 172,361 |  |  | $ | 377,348 |
Segment Operating Expenses | (35,979) |  |  | (49,977) |  |  | (60,549) |  |  | (146,505) |
Segment Product Costs | — |  |  | — |  |  | (92,479) |  |  | (92,479) |
Other Segment Items(3) | (1,797) |  |  | 177 |  |  | (875) |  |  | (2,495) |
Segment Margin(4) | $ | 87,594 |  |  | $ | 29,817 |  |  | $ | 18,458 |  |  | $ | 135,869 |
Three Months Ended June 30, 2024 |  |  |  |  |  |  |
Total revenues of reportable segments(2)(5) | $ | 99,024 |  |  | $ | 81,871 |  |  | $ | 249,284 |  |  | $ | 430,179 |
Segment Operating Expenses | (29,892) |  |  | (50,602) |  |  | (71,285) |  |  | (151,779) |
Segment Product Costs | — |  |  | — |  |  | (159,155) |  |  | (159,155) |
Other Segment Items(3) | 16,999 |  |  | 274 |  |  | 1,398 |  |  | 18,671 |
Segment Margin(4) | $ | 86,131 |  |  | $ | 31,543 |  |  | $ | 20,242 |  |  | $ | 137,916 |
Six Months Ended June 30, 2025 |  |  |  |  |  |  |
Revenues: |  |  |  |  |  |  |
External Customers | $ | 234,015 |  |  | $ | 160,261 |  |  | $ | 381,383 |  |  | $ | 775,659 |
Intersegment Revenue(1) | 242 |  |  | — |  |  | (242) |  |  | — |
Total revenues of reportable segments(2) | $ | 234,257 |  |  | $ | 160,261 |  |  | $ | 381,141 |  |  | $ | 775,659 |
Segment Operating Expenses | (68,915) |  |  | (100,866) |  |  | (128,558) |  |  | (298,339) |
Segment Product Costs | — |  |  | — |  |  | (220,170) |  |  | (220,170) |
Other Segment Items(3) | (1,200) |  |  | 443 |  |  | 871 |  |  | 114 |
Segment Margin(4) | $ | 164,142 |  |  | $ | 59,838 |  |  | $ | 33,284 |  |  | $ | 257,264 |
Six Months Ended June 30, 2024 |  |  |  |  |  |  |
Total revenues of reportable segments(2)(5) | $ | 201,014 |  |  | $ | 165,445 |  |  | $ | 498,167 |  |  | $ | 864,626 |
Segment Operating Expenses | (57,710) |  |  | (103,010) |  |  | (142,972) |  |  | (303,692) |
Segment Product Costs | — |  |  | — |  |  | (319,543) |  |  | (319,543) |
Other Segment Items(3) | 40,633 |  |  | 471 |  |  | 2,688 |  |  | 43,792 |
Segment Margin(4) | $ | 183,937 |  |  | $ | 62,906 |  |  | $ | 38,340 |  |  | $ | 285,183 |
(1)Intersegment sales were conducted under terms that we believe were no more or less favorable than then-existing market conditions. (2)Total revenues of reportable segments in the table above agrees to “Total revenues” as seen in our Unaudited Condensed Consolidated Statements of Operations for each respective period. (3)Other Segment Items primarily includes adjustments related to the difference in timing of cash receipts for certain contractual agreements (applicable to our offshore pipeline transportation and onshore transportation and services segments), segment general and administrative expenses less the non-cash effects of our LTIP plan (applicable to all reportable segments), net effects of our noncontrolling interests (applicable to our offshore pipeline transportation segment), adjustments to include distributable cash generated by our equity investees (applicable to our offshore pipeline transportation and onshore transportation and services segments), and unrealized gains and losses from the valuation of our commodity derivative transactions (excluding fair value hedges) (applicable to our onshore transportation and services segment). (4)A reconciliation of Income (loss) from continuing operations before income taxes to total Segment Margin for the periods is presented below. (5)There were no intersegment revenues for the three and six months ended June 30, 2024. Total assets by reportable segment were as follows:
| June 30, 2025 |  | December 31, 2024
Offshore pipeline transportation | $ | 2,769,350 |  |  | $ | 2,748,296 |
Marine transportation | 629,719 |  |  | 641,082 |
Onshore transportation and services | 1,398,152 |  |  | 1,401,238 |
Total reportable segment assets | $ | 4,797,221 |  |  | $ | 4,790,616 |
Other assets | 41,317 |  |  | 39,656 |
Assets held for discontinued operations | — |  |  | 2,207,420 |
Total consolidated assets | $ | 4,838,538 |  |  | $ | 7,037,692 |
Total growth and maintenance capital expenditures for fixed and intangible assets (including enhancements to existing facilities and construction of growth projects as well as contributions to equity investees) by reportable segment for the six months ended June 30, 2025 and 2024 were as follows:
|  |  | Six Months Ended June 30,
|  |  |  |  | 2025 |  | 2024
Offshore pipeline transportation(1) |  |  |  |  | $ | 59,136 |  |  | $ | 119,414 |
Marine transportation |  |  |  |  | 29,452 |  |  | 41,842 |
Onshore transportation and services |  |  |  |  | 4,575 |  |  | 13,816 |
Total reportable segment capital expenditures |  |  |  |  | $ | 93,163 |  |  | $ | 175,072 |
Other |  |  |  |  | 654 |  |  | 6,088 |
Total consolidated capital expenditures(2) |  |  |  |  | $ | 93,817 |  |  | $ | 181,160 |
(1)Capital expenditures in our offshore pipeline transportation segment for the six months ended June 30, 2025 and 2024 represent 100% of the costs incurred, including those funded by our noncontrolling interest holder. (2)Growth and maintenance capital expenditures related to our previously owned Alkali Business are associated with our discontinued operations and are not included in the table above
Reconciliation of Segment Margin to (Loss) Income from Continuing Operations | Reconciliation of Income (loss) from continuing operations before income taxes to total Segment Margin:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
Income (loss) from continuing operations before income taxes | $ | 10,356 |  |  | $ | (3,976) |  |  | $ | (26,061) |  |  | $ | 8,186 |
Net income attributable to noncontrolling interests | (10,417) |  |  | (7,357) |  |  | (19,186) |  |  | (14,960) |
Corporate general and administrative expenses | 15,068 |  |  | 19,405 |  |  | 56,744 |  |  | 34,616 |
Depreciation, amortization and accretion | 59,011 |  |  | 53,940 |  |  | 118,022 |  |  | 106,103 |
Interest expense, net | 60,754 |  |  | 64,539 |  |  | 130,792 |  |  | 126,873 |
Adjustment to include distributable cash generated by equity investees not included in income and exclude equity in investees net income(1) | 5,595 |  |  | 4,879 |  |  | 11,687 |  |  | 11,687 |
Unrealized gains on derivative transactions excluding fair value hedges, net of changes in inventory value | (133) |  |  | (289) |  |  | (204) |  |  | (42) |
Other non-cash items | (4,229) |  |  | (2,474) |  |  | (6,951) |  |  | (4,601) |
Loss on extinguishment of debt (N ote 10) | 8,935 |  |  | 1,429 |  |  | 9,779 |  |  | 1,429 |
Differences in timing of cash receipts for certain contractual arrangements(2) | (9,071) |  |  | 7,820 |  |  | (17,358) |  |  | 15,892 |
Total Segment Margin | $ | 135,869 |  |  | $ | 137,916 |  |  | $ | 257,264 |  |  | $ | 285,183 |
(1)Includes distributions attributable to the quarter and received during or promptly following such quarter. (2)Includes the difference in timing of cash receipts from customers during the period and the revenue we recognize in accordance with GAAP on our related contracts.

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- Definition Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-31 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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