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CONSOLIDATED AND CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - 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
Depreciation and amortization |  | 12,608 | 12,223 | 37,944 | 37,671
Total costs and expenses |  | 158,442 | 162,804 | 487,142 | 568,420
Gain on disposition or sale of property, plant and equipment |  | 159 | 811 | 1,320 | 1,096
Operating income |  | 12,651 | 14,704 | 50,473 | 49,538
Other income (expense): |  |  |  |  |
Interest expense, net |  | (14,592) | (14,994) | (42,811) | (45,914)
Loss on extinguishment of debt |  | 0 | 0 | 0 | (5,121)
Equity in earnings (loss) of DSM Semichem LLC |  | (314) | 0 | (314) | 0
Other, net |  | 2 | 17 | 20 | 50
Total other expense |  | (14,904) | (14,977) | (43,105) | (50,985)
Net income (loss) before taxes |  | (2,253) | (273) | 7,368 | (1,447)
Income tax expense |  | (1,066) | (788) | (3,634) | (3,619)
Net income (loss) |  | (3,319) | (1,061) | 3,734 | (5,066)
Less general partner's interest in net income (loss) |  | 66 | 21 | (75) | 101
Less income (loss) allocable to unvested restricted units |  | 14 | 4 | (14) | 16
Limited partners' interest in net income (loss) |  | $ (3,239) | $ (1,036) | $ 3,645 | $ (4,949)
Net income (loss) per unit attributable to limited partners - basic (in dollars per share) |  | $ (0.08) | $ (0.03) | $ 0.09 | $ (0.13)
Net income (loss) per unit attributable to limited partners - diluted (in dollars per share) |  | $ (0.08) | $ (0.03) | $ 0.09 | $ (0.13)
Weighted average limited partner units - basic (in shares) |  | 38,832,222 | 38,772,266 | 38,831,064 | 38,771,451
Weighted average limited partner units - diluted (in shares) |  | 38,832,222 | 38,772,266 | 38,909,976 | 38,771,451
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
Sulfur services |  |  |  |  |
Revenues: |  |  |  |  |
Total revenues |  | 3,477 | 3,358 | 10,431 | 10,073
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
[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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