Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2025

Revenue Recognition [Abstract]

Schedule of Disaggregation of Revenue

The following tables reflect the disaggregation of our revenues by major category for the three months ended June 30, 2025 and 2024, respectively:

	Three Months Ended June 30, 2025
	Offshore pipeline transportation		Marine transportation		Onshore transportation and services		Consolidated
Fee-based revenues	$	125,370	$	79,617	$	16,713	$	221,700
Product sales	—		—		137,885		137,885
Sulfur services	—		—		17,763		17,763
Total revenues	$	125,370	$	79,617	$	172,361	$	377,348

	Three Months Ended June 30, 2024
	Offshore pipeline transportation		Marine transportation		Onshore transportation and services		Consolidated
Fee-based revenues	$	99,024	$	81,871	$	16,199	$	197,094
Product sales	—		—		212,659		212,659
Sulfur services	—		—		20,426		20,426
Total revenues	$	99,024	$	81,871	$	249,284	$	430,179

The following tables reflect the disaggregation of our revenues by major category for the six months ended June 30, 2025 and 2024, respectively:

	Six Months Ended June 30, 2025
	Offshore pipeline transportation		Marine transportation		Onshore transportation and services		Consolidated
Fee-based revenues	$	234,257	$	160,261	$	30,218	$	424,736
Product sales	—		—		312,148		312,148
Sulfur services	—		—		38,775		38,775
Total revenues	$	234,257	$	160,261	$	381,141	$	775,659

	Six Months Ended June 30, 2024
	Offshore pipeline transportation		Marine transportation		Onshore transportation and services		Consolidated
Fee-based revenues	$	201,014	$	165,445	$	29,486	$	395,945
Product sales	—		—		425,368		425,368
Sulfur services	—		—		43,313		43,313
Total revenues	$	201,014	$	165,445	$	498,167	$	864,626

Schedule of Contract Asset and Liabilities Balances Activity

The table below depicts our contract asset and liability balances at June 30, 2025 and December 31, 2024:

	Contract Assets		Contract Liabilities
	Other Assets		Accrued Liabilities		Other Long-Term Liabilities
Balance at December 31, 2024	$	5,174	$	41,618	$	82,164
Balance at June 30, 2025	6,498		33,400		73,350

For the six months ended June 30, 2025 and 2024, we recognized revenue of $21.4 million and $6.8 million, respectively, that was included in contract liabilities at the beginning of the period.

Schedule of Revenue Expected to be Recognized in Future Periods

The following chart depicts how we expect to recognize revenues for future periods related to these contracts:

	Offshore Pipeline Transportation		Onshore Transportation and Services
Remainder of 2025	$	125,255	$	14,947
2026	208,315		29,931
2027	139,076		14,763
2028	61,272		10,000
2029	30,400		2,500
Thereafter	83,888		—
Total	$	648,206	$	72,141