DOF Group ASA has finalized a large subsea infrastructure contract with TotalEnergies valued between USD 50 million and USD 100 million. The project involves decommissioning and installing floating storage and offloading systems, with maritime execution scheduled to commence in late 2027.
TotalEnergies has selected offshore service provider DOF Group ASA to execute a major subsea infrastructure overhaul for the FSO Unity Replacement Project. According to official disclosures, the agreement is valued between USD 50 million and USD 100 million, mandating the engineering, transportation, and installation of complex mooring systems. Based in Norway, DOF Group ASA provides integrated subsea construction, engineering, and vessel management services to the global energy industry, and will oversee both the disconnection of an existing floating storage and offloading unit and the integration of its replacement.
This partnership highlights the ongoing capital expenditure by supermajors to maintain and modernize aging offshore production infrastructure. The operational scope will draw extensively on specialized maritime assets, requiring four vessels and approximately 330 vessel days across the final quarter of 2027 and the first quarter of 2028. Project management and technical engineering are slated to begin immediately at regional offices in Norway and Scotland.
For the offshore marine sector, this capital commitment reflects a tightening supply of highly technical subsea construction vessels, driving multi-year backlog growth for tier-one contractors. As energy operators balance production efficiency with regulatory decommissioning requirements, integrated service providers with combined engineering and fleet capabilities are capturing premium market share. For strategic investors, this contract reinforces market visibility within the North Sea and Atlantic offshore service supply chains, signaling resilient demand for complex deepwater operational support.
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