VESSELS AND OTHER OPERATING ASSETS
−Removed: As of December 31, 2024, our fleet included 26 owned vessels, eight IRSs, three SILs, the ROAM, 20 P&A systems, six CT systems, 39 ROVs, six trenchers and two IROV boulder grabs.
+Added: As of December 31, 2025, our fleet included 26 owned vessels, eight IRSs, three SILs, the ROAM, 20 P&A systems, six CT systems, 39 ROVs, six trenchers and three IROV boulder grabs.
We also had seven vessels under time charter agreements.
6 unchanged sentences
Well Enhancer (4)
−Removed: Siem Helix 1 (5)
+Added: Sea Helix 1 (5)
Siem Helix 2 (5)
5 unchanged sentences
39 ROVs, 6 Trenchers and 3 IROV boulder grabs (4), (8)
−Removed: Grand Canyon II (5)
−Removed: Grand Canyon III (5)
−Removed: North Sea Enabler (5)
−Removed: Shelia Bordelon (5)
−Removed: Glomar Wave (5)
+Added: 5 chartered robotics support vessels (5)
(1) We maintain our vessels in accordance with standards of seaworthiness, safety and health set by governmental regulations and classification organizations.
−Removed: We maintain our fleet to the standards for seaworthiness, safety and health set by the ABS, Bureau Veritas (“BV”), Det Norske Veritas (“DNV”), Lloyds Register of Shipping (“Lloyds”), and the Coast Guard.
+Added: We maintain our fleet to the standards for seaworthiness, safety and health set by the ABS, Bureau Veritas (“BV”), Det Norske Veritas (“DNV”), Lloyds Register of Shipping (“Lloyds”), and the U.S.
ABS, BV, DNV and Lloyds are classification societies used by vessel owners to certify that their vessels meet certain structural, mechanical and safety equipment standards.
2 unchanged sentences
(4) Serves as security for the Amended ABL Facility described in Note 7.
−Removed: (5) Vessel under a time charter agreement.
+Added: (5) Vessels under time charter agreements.
(6) We own a 50% interest in the ROAM and three of the IRSs.
−Removed: One of the two deepwater IRSs has not yet been placed in service.
(7) DP capabilities are only applicable to five OSVs.
3 unchanged sentences
Our corporate headquarters are located at 3505 West Sam Houston Parkway North, Suite 400, Houston, Texas 77043.
−Removed: Except for one owned property related to Helix Alliance, we currently lease all of our facilities, which are primarily located in Texas, Louisiana, Scotland, Singapore and Brazil.
+Added: Except for two owned properties related to Helix Alliance, we currently lease all of our facilities, which are primarily located in Texas, Louisiana, Scotland, Singapore and Brazil.
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.