On 9 November 2017, Tullow Oil plc (Tullow) reported that it plugged and abandoned the exploration well Ekales-3 with oil shows in Block 13T. End September 2017, the well reached a TD of 2,721 m. The well tested an undrilled structure east of the Ekales field in Block 13T.  The next well to be drilled is the appraisal well Ngamia 11. The well will be completed and use in an extended water flood pilot test in conjunction with the Early Oil Pilot Scheme (EOPS). The second well will test the Etete structure, south of the Etom field. Tullow is evaluating further well location to be added to the drilling programme.  The Block13T is operated by Tullow (50%) in partnership with Africa Oil (25%) and Maersk Oil and Gas (25%).
Kenya (East African Rift System, Eastern Branch) Ngamia 11 op. by TULLOW (50.0%, MAERSK 25.0%, AFRICA OIL 25.0%) in Block 10BB