McDermott has been awarded a large offshore subsea contract by PTTEP Sabah Oil Limited (PTTEP) for the Block H gas field expansion project, located offshore Sabah, in East Malaysia, covering the Alum, Bemban, and Permai deepwater fields.
Under the scope of the contract, McDermott will deliver engineering, procurement, construction, and installation (EPCI) services for a carbon steel pipeline, along with transportation and installation of key subsea umbilicals, risers, and flowlines (SURF) components. The infrastructure is part of a broader system designed to support the delivery of additional feed gas to the Petronas Floating Liquefied Natural Gas Dua (PFLNG DUA) facility, which has been producing from Block H’s Rotan and Buluh fields since 2021.
Engineering and project management will be led from McDermott’s Subsea and Floating Facilities team in Kuala Lumpur, while offshore installation will leverage the company’s versatile marine construction fleet.
Operated by PTTEP on behalf of partners Petronas Carigali and PT Pertamina Malaysia Exploration Production, the Block H development is a cornerstone of Malaysia’s deepwater gas strategy, with expansion expected to increase domestic gas supply, supporting long-term energy security and economic growth.