Details of Certain Accounts (Tables)

6 Months Ended

Jun. 30, 2025

Details of Certain Accounts

Schedule of other current assets

Other current assets consist of the following (in thousands):

	June 30,		December 31,
	2025		2024
Prepaids	$	21,681	$	26,780
Income tax receivable		28,523		2,635
Contract assets (Note 8)		13,204		12,221
Deferred costs (Note 8)		41,107		31,874
Other		8,220		9,512
Total other current assets	$	112,735	$	83,022

Schedule of other assets, net

Other assets, net consist of the following (in thousands):

	June 30,		December 31,
	2025		2024
Prepaid charter (1)	$	12,544	$	12,544
Deferred costs (Note 8)		2,273		5,348
Other receivable (2)		26,030		24,827
Intangible assets with finite lives, net		3,507		3,630
Other		1,681		1,829
Total other assets, net	$	46,035	$	48,178

(1) Represents prepayments to the owner of the Siem Helix 1 and the Siem Helix 2, which may be used to offset certain payment obligations associated with the vessels at the end of their respective charter term.

(2) Represents the present value of receivables for P&A work to be performed by us on Droshky oil and gas properties we acquired from Marathon Oil Corporation in 2019.

Schedule of accrued liabilities

Accrued liabilities consist of the following (in thousands):

	June 30,		December 31,
	2025		2024
Accrued payroll and related benefits	$	33,012	$	49,521
Accrued interest		10,196		10,278
Deferred revenue (Note 8)		38,630		14,914
Other		22,934		15,742
Total accrued liabilities	$	104,772	$	90,455

Schedule of other non-current liabilities

Other non-current liabilities consist of the following (in thousands):

	June 30,		December 31,
	2025		2024
Deferred revenue (Note 8)	$	—	$	699
Asset retirement obligations (Note 12)		65,794		62,947
Other		2,974		3,325
Total other non-current liabilities	$	68,768	$	66,971