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CONSOLIDATED AND CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Revenues: |  |  |
Revenues |  | $ 192,543 | $ 180,830
Cost of products sold: (excluding depreciation and amortization) |  |  |
Cost of products sold |  | 89,576 | 77,647
Expenses: |  |  |
Operating expenses | [1] | 64,454 | 63,934
Selling, general and administrative | [1] | 11,774 | 8,913
Depreciation and amortization |  | 12,816 | 12,649
Total costs and expenses |  | 178,620 | 163,143
Gain on disposition or sale of property, plant and equipment |  | 479 | 208
Operating income |  | 14,402 | 17,895
Other income (expense): |  |  |
Interest expense, net |  | (14,107) | (13,842)
Equity in loss of DSM Semichem LLC |  | (209) | 0
Other, net |  | (2) | 16
Total other expense |  | (14,318) | (13,826)
Net income before taxes |  | 84 | 4,069
Income tax expense |  | (1,117) | (796)
Net income (loss) |  | (1,033) | 3,273
Less general partner's interest in net income (loss) |  | 21 | (65)
Less income (loss) allocable to unvested restricted units |  | 4 | (12)
Limited partners' interest in net income (loss) |  | $ (1,008) | $ 3,196
Net income (loss) per unit attributable to limited partners - basic (in dollars per share) |  | $ (0.03) | $ 0.08
Net income (loss) per unit attributable to limited partners - diluted (in dollars per share) |  | $ (0.03) | $ 0.08
Weighted average limited partner units - basic (in shares) |  | 38,882,982 | 38,828,737
Weighted average limited partner units - diluted (in shares) |  | 38,882,982 | 38,836,165
Transportation |  |  |
Revenues: |  |  |
Revenues | [1] | $ 52,985 | $ 58,307
Sulfur services |  |  |
Revenues: |  |  |
Revenues |  | 4,223 | 3,477
Product sales |  |  |
Revenues: |  |  |
Revenues | [1] | 113,786 | 96,529
Specialty products |  |  |
Revenues: |  |  |
Revenues | [1] | 69,305 | 66,325
Cost of products sold: (excluding depreciation and amortization) |  |  |
Cost of products sold | [1] | 60,494 | 57,230
Sulfur services |  |  |
Revenues: |  |  |
Revenues | [1] | 44,481 | 30,204
Cost of products sold: (excluding depreciation and amortization) |  |  |
Cost of products sold | [1] | 29,082 | 20,399
Terminalling and storage |  |  |
Revenues: |  |  |
Revenues | [1] | 21,549 | 22,517
Cost of products sold: (excluding depreciation and amortization) |  |  |
Cost of products sold | [1] | $ 0 | $ 18
[1] | Related Party Transactions Included Above
|  |  | Three Months Ended
|  |  | March 31,
|  |  |  |  | 2025 |  | 2024
Revenues:* |  |  |  |  |  |  |
Terminalling and storage |  |  |  |  | $ | 17,262 |  |  | $ | 18,549 |
Transportation |  |  |  |  | 7,970 |  |  | 8,601 |
Product Sales |  |  |  |  | 1,300 |  |  | 129 |
Costs and expenses:* |  |  |  |  |  |  |
Cost of products sold: (excluding depreciation and amortization) |  |  |  |  |  |  |
Specialty products |  |  |  |  | 6,010 |  |  | 6,573 |
Sulfur services |  |  |  |  | 3,121 |  |  | 2,993 |
Terminalling and storage |  |  |  |  | — |  |  | 18 |
Expenses: |  |  |  |  |  |  |
Operating expenses |  |  |  |  | 27,565 |  |  | 26,423 |
Selling, general and administrative |  |  |  |  | 7,892 |  |  | 6,863 |

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