ExxonMobil and its partners are investing $1 billion in Nigeria’s Usan deepwater project, marking the company’s first drilling campaign since 2016 and adding up to 40,000 barrels of oil per day

Nigeria joins the IEA as the first OPEC member, while Dangote's refinery eyes a $4 billion IPO and Shell, ExxonMobil deepen their Nigeria bets.

Esso Exploration and Production Nigeria (Offshore East) Limited, a unit of Exxon Mobil Corp., has begun on-block work on the Usan Infill...