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 EndedMarch 31,20252024Revenues:*  Terminalling and storage$17,262 $18,549 Transportation7,970 8,601 Product Sales1,300 129 Costs and expenses:*Cost of products sold: (excluding depreciation and amortization)Specialty products6,010 6,573 Sulfur services3,121 2,993 Terminalling and storage— 18 Expenses:Operating expenses27,565 26,423 Selling, general and administrative7,892 6,863