The Errea Wittu unit for ExxonMobil’s Uaru development in the Stabroek Block is part of MODEC’s latest floating production, storage, and offloading (FPSO) fleet under construction and will use the company’s next-generation floating production technology.
In its 2025 Integrated Report, published on July 3, MODEC said it is constructing four FPSOs, including Errea Wittu, and operates 21 vessels globally, with 53 units delivered to date and more than 350 years of operational experience.
According to the company, the new fleet of vessels aligns with its broader strategy to reduce greenhouse gas emissions while continuing to support offshore oil production.
“With the aim of achieving net-zero emissions by 2050, MODEC is promoting the decarbonization of FPSOs through measures that minimize the major sources of GHG [greenhouse gas] emissions associated with crude oil production on FPSOs: fuel combustion, flaring, fugitive emissions, and tank vent,” the Japanese FPSO supplier.
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Beyond conventional oil production, MODEC said it is also developing floating energy solutions, including floating nuclear power plants and low-carbon ammonia FPSOs, to help meet rising electricity demand while lowering emissions.
“In the energy transition, low-carbon fuels such as ammonia are expected to play a meaningful role in decarbonizing the power and industrial sectors. MODEC is developing product concepts, such as Low-Carbon Ammonia FPSO, to address emerging demand. This floating solution enables the offshore production of low-carbon ammonia using surplus associated gas generated during crude oil production, which is often reinjected today,” the company said.
MODEC was awarded the front-end engineering and design contract for the Errea Wittu FPSO in October 2022, followed by the engineering, procurement, construction and installation (EPCI) contract and a 10-year operations and maintenance (O&M) agreement with ExxonMobil Guyana in May 2023.
The vessel under construction will support the development of the Uaru field and other nearby resources about 200 kilometers offshore Guyana. It is designed to produce 250,000 barrels of oil per day, process 540 million cubic feet of associated gas daily, inject 350,000 barrels of water per day, and store up to two million barrels of crude.
Uaru targets more than 800 million barrels of recoverable oil. The US$12.7 billion project will feature up to 10 drill centers and 44 wells.
MODEC will also deliver the FPSO for the Uaru project.
The Stabroek Block is operated by ExxonMobil, which holds a 45% stake, alongside Hess (30%) and CNOOC (25%).
