After successfully handling pre-commissioning campaigns for all three FPSOs currently operating in Guyana’s offshore Stabroek block—Liza Destiny, Liza Unity, and Prosperity—EnerMech has now been selected to perform similar work on the FPSO One Guyana. This vessel is expected to arrive in Guyanese waters later this year.
Frazer Thomson, EnerMech’s Vice President of Operations in the Americas, emphasized the complexity of the project, stating: “The One Guyana FPSO pre-commissioning scope of work requires precise execution and deep technical expertise to manage the complex challenges these operations present, and we have consistently delivered successful outcomes for SBM GDO in the region. Our ability to deploy specialized personnel and advanced technology underlines our readiness to handle the demanding environment of deepwater operations.”
In addition to this contract, the UK-based firm has also secured pre-commissioning work for the gas-to-energy pipeline, as well as the turnaround (TAR) activities for the FPSOs Liza Destiny and Liza Unity. As part of its scope, EnerMech will execute offshore riser leak testing, gas injection riser dewatering, umbilical electrical and fiber optic testing, and the installation of interconnecting tubing. The company will also manage flushing and testing operations for the FPSO One Guyana.
A Milestone Project in Guyana’s Energy Growth
EnerMech CEO Charles Davison Jr. underscored the company’s strong track record in the region, stating: “We are honored to be selected once again by SBM Offshore for such a pivotal project, reinforcing the trust and confidence placed in our solutions-oriented strategies and capabilities. This award builds on EnerMech’s extensive experience with the three preceding FPSOs—Liza Destiny, Liza Unity, and Prosperity—demonstrating our commitment to delivering high-quality service in the region.
“Our selection for this critical work reflects not only our proven track record but also our unparalleled expertise and rigorous standards. We look forward to contributing to the success of the One Guyana FPSO and further supporting the energy ambitions of Guyana.”
The FPSO One Guyana, constructed by SBM Offshore for ExxonMobil, is designed to produce approximately 250,000 barrels of oil per day, with a gas treatment capacity of around 450 million cubic feet per day and a water injection capacity of 300,000 barrels per day. The vessel will be spread-moored at a water depth of approximately 1,800 meters and will have storage capacity for up to 2 million barrels of crude oil.
Strategic Expansion in the Stabroek Block
Darrel Sookdeo, EnerMech’s Guyana Country Manager, highlighted the company’s focus on safety and efficiency: “We are committed to upholding the highest standards of safety and efficiency whilst bolstering our local content, ensuring that the One Guyana FPSO is fully prepared to meet its production targets as it enters the next phase of its journey.”
ExxonMobil sanctioned the Yellowtail development—its fourth project in the Stabroek block—in April 2022, which includes six drill centers with up to 26 production and 25 injection wells. Shortly after, SBM Offshore secured the contract to supply the FPSO One Guyana.
The vessel was constructed using SBM Offshore’s Fast4Ward program, which incorporates a standardized hull design. It entered drydock at the Keppel yard in March 2023 and, nearly a year later, was moved to the Seatrium yard in Singapore for final integration and commissioning. In September 2024, SBM Offshore confirmed that the FPSO had progressed to the integration and commissioning phase.
Spanning 6.6 million acres (26,800 square kilometers), the Stabroek block is operated by ExxonMobil’s affiliate in Guyana (45% interest), alongside Hess Guyana Exploration (30%) and CNOOC Petroleum Guyana (25%). ExxonMobil aims to have six FPSOs in operation by 2027, with a combined production capacity of over 1.2 million barrels of oil per day. The company has also outlined plans for up to ten FPSOs to fully develop the estimated 11 billion barrels of recoverable resources within the block.
Beyond Guyana, SBM Offshore is also engaged in the construction of the FPSO Jaguar for ExxonMobil’s Whiptail oilfield development—the sixth project in the Stabroek block. Additionally, the Dutch company recently secured a contract from Petrobras to evaluate carbon capture systems for future FPSOs in Brazil, reflecting its broader commitment to advancing offshore energy solutions.