ExxonMobil and its partners will invest $1 billion in the Usan Infill Project offshore Nigeria, a development expected to add 40,000 b...

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...