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CONSOLIDATED AND CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - Related Party Transactions (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Revenues: |  |  |  |  |
Total revenues |  | $ 170,934 | $ 176,697 | $ 536,295 | $ 616,862
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold |  | 70,977 | 75,782 | 225,435 | 312,849
Expenses: |  |  |  |  |
Operating expenses | [1] | 62,363 | 64,375 | 191,655 | 187,857
Selling, general and administrative | [1] | 12,494 | 10,424 | 32,108 | 30,043
Terminalling and storage |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues | [1] | 22,562 | 22,202 | 67,454 | 64,744
Transportation |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues | [1] | 56,506 | 55,223 | 172,489 | 165,696
Product Sales |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues | [1] | 88,389 | 95,914 | 285,921 | 376,349
Specialty products |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues | [1] | 67,206 | 66,695 | 200,819 | 277,836
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold | [1] | 58,409 | 56,298 | 173,192 | 245,863
Sulfur services |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues | [1] | 21,183 | 29,219 | 85,102 | 98,513
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold | [1] | 12,545 | 19,461 | 52,178 | 66,932
Terminalling and storage |  |  |  |  |
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold | [1] | 23 | 23 | 65 | 54
Related Party |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues |  | 25,851 | 26,090 | 79,649 | 82,879
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold |  | 11,438 | 12,706 | 32,333 | 35,517
Expenses: |  |  |  |  |
Operating expenses |  | 26,153 | 25,606 | 79,077 | 74,491
Selling, general and administrative |  | 12,215 | 8,477 | 27,716 | 23,549
Related Party | Terminalling and storage |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues |  | 17,785 | 18,542 | 54,412 | 54,121
Expenses: |  |  |  |  |
Operating expenses |  | 5,646 | 5,449 | 16,611 | 15,729
Selling, general and administrative |  | 1,333 | 323 | 1,757 | 551
Related Party | Transportation |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues |  | 7,975 | 7,426 | 24,894 | 20,214
Expenses: |  |  |  |  |
Operating expenses |  | 19,257 | 18,531 | 58,844 | 54,546
Selling, general and administrative |  | 3,635 | 2,307 | 7,665 | 6,509
Related Party | Product Sales |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues |  | 91 | 122 | 343 | 8,544
Related Party | Specialty products |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues |  | 82 | 59 | 272 | 8,348
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold |  | 8,401 | 9,896 | 23,342 | 27,324
Expenses: |  |  |  |  |
Selling, general and administrative |  | 1,833 | 1,101 | 3,825 | 2,982
Related Party | Sulfur services |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues |  | 9 | 63 | 71 | 196
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold |  | 3,014 | 2,787 | 8,926 | 8,139
Expenses: |  |  |  |  |
Operating expenses |  | 1,250 | 1,626 | 3,622 | 4,216
Selling, general and administrative |  | 1,826 | 1,134 | 3,759 | 2,654
Related Party | Terminalling and storage |  |  |  |  |
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |
Cost of products sold |  | $ 23 | $ 23 | $ 65 | $ 54
[1] | Related Party Transactions Included Above
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Revenues:* |  |  |  |  |  |  |
Terminalling and storage | $ | 17,785 |  |  | $ | 18,542 |  |  | $ | 54,412 |  |  | $ | 54,121 |
Transportation | 7,975 |  |  | 7,426 |  |  | 24,894 |  |  | 20,214 |
Product Sales | 91 |  |  | 122 |  |  | 343 |  |  | 8,544 |
Costs and expenses:* |  |  |  |  |  |  |
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |  |  |
Specialty products | 8,401 |  |  | 9,896 |  |  | 23,342 |  |  | 27,324 |
Sulfur services | 3,014 |  |  | 2,787 |  |  | 8,926 |  |  | 8,139 |
Terminalling and storage | 23 |  |  | 23 |  |  | 65 |  |  | 54 |
Expenses: |  |  |  |  |  |  |
Operating expenses | 26,153 |  |  | 25,606 |  |  | 79,077 |  |  | 74,491 |
Selling, general and administrative | 12,215 |  |  | 8,477 |  |  | 27,716 |  |  | 23,549 |

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