Photo caption: The drillship Noble Gerry de Souza
By Emeka Ugwuanyi
Esso Exploration and Production Nigeria (Offshore East) Limited, operator of the Usan field located in Oil Mining Lease (OML) 138 on Thursday announced the arrival of the Noble Gerry de Souza in Nigerian waters. This marks a major milestone in the execution of the Usan Infill Project, reinforcing the company’s commitment to investing in Nigeria’s deepwater energy sector.
The arrival of this state-of-the-art ultra-deepwater drillship signals the commencement of a drilling campaign designed to unlock additional value from the Usan Field. As a short cycle investment, the project is expected to deliver up to 40,000 barrels per day of incremental oil production within 18 months, contributing quickly to Nigeria’s energy security and economic development.
The Usan Infill Project is supported by a cumulative US$1 billion investment by the OML 138 partners and underscores Esso’s confidence in Nigeria’s improving investment environment.
“The arrival of the Noble Gerry de Souza marks the beginning of an exciting new chapter for the Usan Field and reflects our continued focus on delivering short cycle deepwater production growth through disciplined investment, in deploying technologies and through operational excellence,” said Jagir Baxi, Chairman and Managing Director of ExxonMobil affiliates in Nigeria.
The advanced capabilities of the Noble Gerry de Souza will support the safe and efficient delivery of the drilling program, helping maximize recovery from existing infrastructure while strengthening the long-term performance of the Usan asset.
This milestone is the result of years of planning, collaboration, and dedication by multidisciplinary teams across Esso and partner organizations in Nigeria. Their expertise and commitment have been instrumental in transitioning the project from concept to operational readiness.
As offshore activities commence, Esso remains focused on delivering the project safely and responsibly, in close partnership with government stakeholders, regulators, contractors, and coventurers.
The arrival of the Noble Gerry de Souza represents the start of a new phase of investment, innovation, and growth for the Usan Field and further demonstrates Esso’s commitment to supporting Nigeria’s energy future.
The Usan Infill Project is designed to enhance production from the existing Usan Field through additional drilling and subsea development. The project is expected to deliver up to 40,000 barrels per day of incremental production while leveraging existing infrastructure to accelerate value delivery and improve project.
Esso Exploration and Production (Offshore East) Nigeria Limited is a subsidiary of ExxonMobil and Operator of OML 138 under a Production Sharing Contract (PSC) with the Nigerian National Company Limited (NNPC).

