East African Rift

Commentary

Tilenga, Kingfisher and the EACOP pipeline are in final construction with government support, although first commercial oil has slipped to before the end of June 2027. Governance and reputational risks remain. Outlook: Neutral.

Updated

October 12, 2026

Location

Description

The EARB is a geologically complex province covering c.2.9m sq km of east Africa. The rifts are commonly described as forming an “Eastern Branch” and a “Western Branch”, separated by the Tanzanian craton and Lake Victoria. The East African Rift System ("EARS") developed in the late Oligocene in the Afar region of Ethiopia, shortly after an Eocene–Oligocene flood basalt event. Extension in the Eastern Branch, including the Lake Turkana and South Lokichar basins of northern Kenya, began in the Paleogene, while the Western Branch, from the Albertine Graben of Uganda/DRC south to Malawi and Mozambique, developed mainly from the middle to late Miocene. As much as 5,000m of Oligocene-to-Holocene sedimentary rocks fill the rift basins. Commercial oil has been found only in the Albertine Graben (Western Branch) and the South Lokichar Basin (Eastern Branch), where lacustrine source rocks have charged more than 4bn bbl of oil in place in over 20 fields. In 2016 the USGS assessed the province at a mean of 13.4bn bbl of undiscovered oil and 4.6tcf of gas.

Summary

The EARB is approaching first commercial production. In Uganda, where most basin activity is concentrated, the Tilenga and Kingfisher developments and the 1,443km EACOP export pipeline are in final construction, with Kingfisher's processing facility mechanically complete in August 2026; first commercial oil is now targeted before end-June 2027 (peak c. 230,000 b/d). Repeated delays, cost overruns and environmental opposition keep the outlook uncertain.