16 March 2016
Tullow Oil plc (Tullow) announces that the Cheptuket-1 well in Block 12A, Northern Kenya, has encountered good oil shows, seen in cuttings and rotary sidewall cores, across an interval of over 700 metres.
Cheptuket-1 is the first well to test the Kerio Valley Basin and was drilled by the PR Marriott Rig-46 to a final depth of 3,083 metres.
The objective of the well was to establish a working petroleum system and test a structural closure in the south-western part of the basin. The strong oil shows encountered in Cheptuket-1 indicate the presence of an active petroleum system with significant oil generation. Post-well analysis is in progress ahead of defining the future exploration programme in the basin. As previously advised, the PR Marriott Rig-46 will now be demobilised. On the back of the encouraging Cheptuket-1 and successful Etom-2 results further exploration activities are being evaluated.
Tullow operates Block 12A with 40% equity and is partnered by Delonex Energy with 40% and Africa Oil Corporation with 20%.
Angus McCoss, Exploration Director, commented today:
“This is the most significant well result to date in Kenya outside the South Lokichar basin. Encountering strong oil shows across such a large interval is very encouraging indeed. I am delighted by this wildcat well result and the team are already working on our follow-up exploration plans for the Kerio Valley Basin.”