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Revenue | 9 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Revenue | REVENUE The following table disaggregates our revenue by major source:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2025 |  | 2024 |  | 2025 |  | 2024
Terminalling and storage segment |  |  |  |  |  |  |
Throughput and storage | $ | 23,930 |  |  | $ | 22,562 |  |  | $ | 67,883 |  |  | $ | 67,454 |
| $ | 23,930 |  |  | $ | 22,562 |  |  | $ | 67,883 |  |  | $ | 67,454 |
Transportation segment |  |  |  |  |  |  |
Land transportation | $ | 37,812 |  |  | $ | 40,514 |  |  | $ | 115,433 |  |  | $ | 126,117 |
Inland marine transportation | 9,574 |  |  | 14,146 |  |  | 34,254 |  |  | 41,446 |
Offshore marine transportation | 2,323 |  |  | 1,846 |  |  | 6,833 |  |  | 4,926 |
| $ | 49,709 |  |  | $ | 56,506 |  |  | $ | 156,520 |  |  | $ | 172,489 |
Sulfur services segment |  |  |  |  |  |  |
Sulfur product sales | $ | 9,022 |  |  | $ | 8,585 |  |  | $ | 27,628 |  |  | $ | 21,789 |
Fertilizer product sales | 19,540 |  |  | 12,598 |  |  | 85,470 |  |  | 63,313 |
Sulfur services | 4,073 |  |  | 3,477 |  |  | 12,369 |  |  | 10,431 |
| $ | 32,635 |  |  | $ | 24,660 |  |  | $ | 125,467 |  |  | $ | 95,533 |
Specialty products segment |  |  |  |  |  |  |
Natural gas liquids product sales | $ | 33,927 |  |  | $ | 35,940 |  |  | $ | 109,023 |  |  | $ | 109,506 |
Lubricant product sales | 28,516 |  |  | 31,266 |  |  | 83,043 |  |  | 91,313 |
| $ | 62,443 |  |  | $ | 67,206 |  |  | $ | 192,066 |  |  | $ | 200,819 |
Revenue is measured based on a consideration specified in a contract with a customer and excludes amounts collected on behalf of third parties where the Partnership is acting as an agent. The Partnership recognizes revenue when the Partnership satisfies a performance obligation, which typically occurs when the Partnership transfers control over a product to a customer or as the Partnership delivers a service. The following is a description of the principal activities - separated by reportable segments - from which the Partnership generates revenue. Terminalling and Storage Segment Revenue is recognized for storage contracts based on the contracted monthly tank fixed fee. For throughput contracts, revenue is recognized based on the volume moved through the Partnership’s terminals at the contracted rate. For storage and throughput contracts at the Partnership's underground NGL storage facility, revenue is recognized based on the volume stored and moved through the facility at the contracted rate. For the Partnership’s tolling agreement, revenue is recognized based on the contracted monthly reservation fee and throughput volumes moved through the facility. Throughput and storage revenue in the table above includes non-cancelable revenue arrangements that are under the scope of ASC 842, whereby the Partnership has committed certain Terminalling and Storage assets in exchange for a minimum fee. Transportation Segment Revenue related to land transportation is recognized for line hauls based on a mileage rate. For contracted trips, revenue is recognized upon completion of the particular trip. The performance of the service is invoiced as the transaction occurs and is generally paid within a month. Revenue related to marine transportation is recognized for time charters based on a per day rate. For contracted trips, revenue is recognized upon completion of the particular trip. The performance of the service is invoiced as the transaction occurs and is generally paid within a month. Sulfur Services Segment Revenue from sulfur and fertilizer product sales is recognized when the customer takes title to the product. Delivery of the product is invoiced as the transaction occurs and is generally paid within a month. Revenue from sulfur services is recognized as services are performed during each monthly period. The performance of the service is invoiced as the transaction occurs and is generally paid within a month. Specialty Products Segment NGL revenue is recognized when title is transferred, which is generally when the product is delivered by truck, rail, or pipeline to the Partnership's NGL customers or when the customer picks up the product from our facilities. When lubricants are sold by truck or rail, revenue is recognized when title is transferred, which is generally when the product leaves the Partnership's facility, but can vary based on the specific terms of the contract. The product is invoiced as the transaction occurs and is generally paid within a month. The table below includes estimated minimum revenue expected to be recognized in the future related to performance obligations that are unsatisfied at the end of the reporting period. The Partnership applies the practical expedient in ASC 606-10-50-14(a) and does not disclose information about remaining performance obligations that have original expected durations of one year or less.
| 2025 |  | 2026 |  | 2027 |  | 2028 |  | 2029 |  | Thereafter |  | Total
Terminalling and storage |  |  |  |  |  |  |  |  |  |  |  |  |
Throughput and storage | $ | 11,237 |  |  | $ | 46,117 |  |  | $ | 47,500 |  |  | $ | 48,990 |  |  | $ | 50,393 |  |  | $ | 105,367 |  |  | $ | 309,604 |
Sulfur services |  |  |  |  |  |  |  |  |  |  |  |  |
Product sales | 3,559 |  |  | 14,237 |  |  | 14,237 |  |  | — |  |  | — |  |  | — |  |  | 32,033 |
Service revenues | 2,587 |  |  | 9,374 |  |  | 3,153 |  |  | 2,655 |  |  | 2,655 |  |  | 39,161 |  |  | 59,585 |
Specialty Products |  |  |  |  |  |  |  |  |  |  |  |  |
NGL product sales | 1,707 |  |  | 3,934 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 5,641 |
Total | $ | 19,090 |  |  | $ | 73,662 |  |  | $ | 64,890 |  |  | $ | 51,645 |  |  | $ | 53,048 |  |  | $ | 144,528 |  |  | $ | 406,863 |
In addition, the Partnership has non-cancelable revenue arrangements that are under the scope of ASC 842 whereby we have committed certain terminalling and storage assets in exchange for a minimum fee. Future minimum revenues the Partnership expects to receive under these non-cancelable arrangements as of September 30, 2025, are as follows: 2025 - $6,148; 2026 - $16,513; 2027 - $12,987; 2028 - $12,213; 2029 - $9,909; subsequent years - $8,587.

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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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