In mid-March 2018, Perenco Oil & Gas Gabon was evaluating the Akoum South 1 exploration well in the DE8 block. The well was spudded on 23 January 2018 and reached a TD of 2,302 m on 5 March 2018. Perenco operates the block with a 60% interest and Sasol holds the recently acquired 40% interest  DE8 exploration permit is located along the coast off Omboue, 90-190km SSE of Port Gentil, in water depths ranging from 0 to 80m. Straddling the limit between the North and South Gabon sub-basins, DE8 surrounds three fields operated by Perenco Oil Gabon Ltd, Tchatamba Marin, Tchatamba West and Tchatamba South. Potential reservoirs in the area are the Albian Upper Madiela unit, which is the main reservoir on the Tchatamba complex, and the Senonian Batanga Formation. Potential source rocks lie in the Turonian Azile and Albian Madiela formations.
Perenco Oil & Gas Gabon was evaluating the Akoum South 1 exploration well in the DE8 block.Perenco operates the block with a 60% interest and Sasol holds the recently acquired 40% interest