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Revenue Recognition | 9 Months Ended
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Sep. 30, 2025
Revenue Recognition [Abstract] |
Revenue Recognition | Revenue Recognition Revenue from Contracts with Customers The following tables reflect the disaggregation of our revenues by major category for the three months ended September 30, 2025 and 2024, respectively:
| Three Months Ended September 30, 2025
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 143,306 |  |  | $ | 77,058 |  |  | $ | 20,759 |  |  | $ | 241,123 |
Product sales | — |  |  | — |  |  | 157,480 |  |  | 157,480 |
Sulfur services | — |  |  | — |  |  | 15,398 |  |  | 15,398 |
Total revenues | $ | 143,306 |  |  | $ | 77,058 |  |  | $ | 193,637 |  |  | $ | 414,001 |
| Three Months Ended September 30, 2024
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 101,119 |  |  | $ | 78,496 |  |  | $ | 15,363 |  |  | $ | 194,978 |
Product sales | — |  |  | — |  |  | 185,267 |  |  | 185,267 |
Sulfur services | — |  |  | — |  |  | 17,046 |  |  | 17,046 |
Total revenues | $ | 101,119 |  |  | $ | 78,496 |  |  | $ | 217,676 |  |  | $ | 397,291 |
The following tables reflect the disaggregation of our revenues by major category for the nine months ended September 30, 2025 and 2024, respectively:
| Nine Months Ended September 30, 2025
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 377,563 |  |  | $ | 237,319 |  |  | $ | 50,977 |  |  | $ | 665,859 |
Product sales | — |  |  | — |  |  | 469,628 |  |  | 469,628 |
Sulfur services | — |  |  | — |  |  | 54,173 |  |  | 54,173 |
Total revenues | $ | 377,563 |  |  | $ | 237,319 |  |  | $ | 574,778 |  |  | $ | 1,189,660 |
| Nine Months Ended September 30, 2024
| Offshore pipeline transportation |  | Marine transportation |  | Onshore transportation and services |  | Consolidated
Fee-based revenues | $ | 302,133 |  |  | $ | 243,941 |  |  | $ | 44,849 |  |  | $ | 590,923 |
Product sales | — |  |  | — |  |  | 610,635 |  |  | 610,635 |
Sulfur services | — |  |  | — |  |  | 60,359 |  |  | 60,359 |
Total revenues | $ | 302,133 |  |  | $ | 243,941 |  |  | $ | 715,843 |  |  | $ | 1,261,917 |
We recognize revenue upon the satisfaction of its performance obligations under its contracts. The timing of revenue recognition varies for our different revenue streams. In general, the timing includes recognition of revenue over time as services are being performed as well as recognition of revenue at a point in time for delivery of products. Contract Assets and Liabilities The table below depicts our contract asset and liability balances at September 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 September 30, 2025 |  |  |  | 7,049 |  |  | 30,023 |  |  | 70,161 |
For the nine months ended September 30, 2025 and 2024, we recognized revenue of $30.5 million and $9.1 million, respectively, that was included in contract liabilities at the beginning of the period. Transaction Price Allocations to Remaining Performance Obligations We are required to disclose the aggregate amount of our transaction prices that are allocated to unsatisfied performance obligations as of September 30, 2025. However, we are permitted to utilize the following exemptions: 1)Performance obligations that are part of a contract with an expected duration of one year or less; 2)Revenue recognized from the satisfaction of performance obligations where we have a right to consideration in an amount that corresponds directly with the value provided to customers; and 3)Contracts that contain variable consideration, such as index-based pricing or variable volumes, that is allocated entirely to a wholly unsatisfied performance obligation or to a wholly unsatisfied promise to transfer a distinct good or service that is part of a series. The majority of our contracts qualify for one of these exemptions. For the remaining contract types that involve revenue recognition over a long-term period and include long-term fixed consideration (adjusted for indexing as required), we determined our allocations of transaction price that relate to unsatisfied performance obligations. For our tiered pricing offshore transportation contracts, we provide firm capacity for both fixed and variable consideration over a long-term period. Therefore, we have allocated the remaining contract value to future periods. In our onshore transportation and services segment, we have certain contractual arrangements in which we receive fixed minimum payments for our obligation to provide minimum capacity on our pipelines and related assets. 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 | $ | 63,574 |  |  |  | $ | 7,474 |
2026 | 208,220 |  |  |  | 29,931 |
2027 | 139,001 |  |  |  | 14,022 |
2028 | 61,214 |  |  |  | 10,000 |
2029 | 30,361 |  |  |  | 2,500 |
Thereafter | 83,789 |  |  |  | — |
Total | $ | 586,159 |  |  |  | $ | 63,927 |

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-15 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 606 -Publisher FASB -URI https://asc.fasb.org/606/tableOfContent + Details
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