At the 2026 Nigeria Oil and Gas Energy Week in Abuja, ExxonMobil said it had formally executed a $1 billion investment in the Usan Infill Project within Oil Mining Lease 138. The project marks a major deepwater return for the company after years of limited activity in the space, with production expected to rise by as much as 40,000 barrels per day at peak output.
The plan is built around existing infrastructure rather than a new greenfield development, which is one reason the project is being described as a short-cycle investment. First oil is expected within six months of execution, with peak output targeted within 18 months.
Why Usan Matters.
The Usan development is centered on the Usan Floating Production, Storage, and Offloading vessel, which allows ExxonMobil to expand output without starting from scratch. The campaign will rely on extended-reach drilling and intelligent completion systems to access untapped reserves more efficiently.
That approach lowers development costs and speeds up production timelines. It also reflects a broader industry shift toward extracting more value from existing offshore assets instead of chasing only new frontier projects.
Economic Signal For Nigeria.
Nigeria’s upstream regulator has welcomed the investment as a boost for production recovery and government revenue. The reported figures suggest the Usan field has already generated billions of dollars for the country, while the new infill campaign could add more revenue over the next few years.
For policymakers and business leaders, the more important message may be the investment climate behind the decision. ExxonMobil’s move appears tied to clearer long-term regulatory conditions, including the renewed lease framework for OML 138.
What It Means For TWN Readers.
For women founders, executives, and policymakers following Africa’s business landscape, this is more than an oil story. It is a signal that capital still flows where policy is predictable, infrastructure is usable, and returns are visible.
It also points to the continued importance of local technical capacity in Nigeria’s energy sector. With a large offshore asset managed largely by Nigerian professionals, the project reinforces the value of homegrown skills in high-value industries. Source X
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