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Revenue Recognition (Tables) | 6 Months Ended
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Jun. 30, 2025
Revenue Recognition [Abstract] |
Schedule of Disaggregation of Revenue | The following tables reflect the disaggregation of our revenues by major category for the three months ended June 30, 2025 and 2024, respectively:
| Three Months Ended June 30, 2025
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 125,370 |  |  | $ | 79,617 |  |  | $ | 16,713 |  |  | $ | 221,700 |
Product sales | — |  |  | — |  |  | 137,885 |  |  | 137,885 |
Sulfur services | — |  |  | — |  |  | 17,763 |  |  | 17,763 |
Total revenues | $ | 125,370 |  |  | $ | 79,617 |  |  | $ | 172,361 |  |  | $ | 377,348 |
| Three Months Ended June 30, 2024
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 99,024 |  |  | $ | 81,871 |  |  | $ | 16,199 |  |  | $ | 197,094 |
Product sales | — |  |  | — |  |  | 212,659 |  |  | 212,659 |
Sulfur services | — |  |  | — |  |  | 20,426 |  |  | 20,426 |
Total revenues | $ | 99,024 |  |  | $ | 81,871 |  |  | $ | 249,284 |  |  | $ | 430,179 |
The following tables reflect the disaggregation of our revenues by major category for the six months ended June 30, 2025 and 2024, respectively:
| Six Months Ended June 30, 2025
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 234,257 |  |  | $ | 160,261 |  |  | $ | 30,218 |  |  | $ | 424,736 |
Product sales | — |  |  | — |  |  | 312,148 |  |  | 312,148 |
Sulfur services | — |  |  | — |  |  | 38,775 |  |  | 38,775 |
Total revenues | $ | 234,257 |  |  | $ | 160,261 |  |  | $ | 381,141 |  |  | $ | 775,659 |
| Six Months Ended June 30, 2024
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 201,014 |  |  | $ | 165,445 |  |  | $ | 29,486 |  |  | $ | 395,945 |
Product sales | — |  |  | — |  |  | 425,368 |  |  | 425,368 |
Sulfur services | — |  |  | — |  |  | 43,313 |  |  | 43,313 |
Total revenues | $ | 201,014 |  |  | $ | 165,445 |  |  | $ | 498,167 |  |  | $ | 864,626 |
Schedule of Contract Asset and Liabilities Balances Activity | The table below depicts our contract asset and liability balances at June 30, 2025 and December 31, 2024:
|  |  |  | Contract Assets |  | Contract Liabilities
|  |  |  | Other Assets |  | Accrued Liabilities |  | Other Long-Term Liabilities
Balance at December 31, 2024 |  |  |  | $ | 5,174 |  |  | $ | 41,618 |  |  | $ | 82,164 |
Balance at June 30, 2025 |  |  |  | 6,498 |  |  | 33,400 |  |  | 73,350 |
For the six months ended June 30, 2025 and 2024, we recognized revenue of $21.4 million and $6.8 million, respectively, that was included in contract liabilities at the beginning of the period.
Schedule of Revenue Expected to be Recognized in Future Periods | The following chart depicts how we expect to recognize revenues for future periods related to these contracts:
| Offshore Pipeline Transportation |  |  | Onshore Transportation and Services
Remainder of 2025 | $ | 125,255 |  |  |  | $ | 14,947 |
2026 | 208,315 |  |  |  | 29,931 |
2027 | 139,076 |  |  |  | 14,763 |
2028 | 61,272 |  |  |  | 10,000 |
2029 | 30,400 |  |  |  | 2,500 |
Thereafter | 83,888 |  |  |  | — |
Total | $ | 648,206 |  |  |  | $ | 72,141 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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- Definition Tabular disclosure of expected timing for satisfying remaining performance obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(1) -SubTopic 10 -Topic 606 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 + Details
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