West-Central Coastal

Commentary

Deepwater development remains attractive in this prolific basin, where more than 295 oil fields have been discovered. In Angola, where most basin production lies, the permanent offer of blocks, marginal-field incentives and a more flexible approach since leaving OPEC continue to favour independents, but Sonangol's restructuring and FX constraints remain risks. Outlook: Positive.

Updated

October 12, 2026

Location

Description

Basin development along the coast of West Africa commenced in the Late Mesozoic due to rifting and separation of the South American and African continental masses during the opening of the South Atlantic Ocean. The province stretches from the east edge of the Niger Delta south to the Walvis Ridge and includes the Douala, Kribi-Campo, Rio Muni, Gabon, Congo, Kwanza, Benguela and Namibe basins, which together form the Aptian salt basin of equatorial West Africa. The USGS defines four major total petroleum systems: the Melania-Gamba (Lower Cretaceous source and reservoir rocks) and Azile-Senonian (Albian–Turonian source rocks, Cretaceous reservoirs) north of the Congo Basin; the Congo Delta Composite in the Congo Basin; and the Cuanza Composite to the south. Since 1995 several giant oil fields have been discovered, especially in the deep-water Congo Basin.

Summary

The area has had significant exploration for petroleum; more than 295 oil fields have been discovered since 1954. Since 1995, several giant oil fields have been discovered, especially in the deep-water area of the Congo Basin. Although many sub-basins may exist in the West-Central Coastal, only four major sub-basins have been defined. Activity remains high as geology, production advances and improving host governments buoy the outlook.