[1] The South Lokichar Basin is a north-south trending half-graben with the main bounding fault on its western margin.
[3] The basin is filled by a sequence of Oligocene (possibly as old as Eocene) to Miocene sedimentary rocks.
[2] Exploration in the basin began with the Loperot-1 well drilled by Royal Dutch Shell in 1992.
In 2008 Africa Oil Corp acquired a PSA for license 10BB over the basin.
Subsequently, another eight discoveries have been made, all, like Ngamia, close to the basin bounding fault.