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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.”

Contacts

Tullow Investor Relations Camarco (Media)

ir@tullowoil.com
Matthew Evans

(+44 20 3757 4980)
Billy Clegg
Georgia Edmonds
Rebecca Waterworth

Notes to editors

Tullow is an independent energy company that is building a better future through responsible oil and gas development in Africa. Tullow's operations are focused on its core producing assets in Ghana. Tullow is committed to becoming Net Zero on its Scope 1 and 2 emissions by 2030, with a Shared Prosperity strategy that delivers lasting socio-economic benefits for its host nations. The Group is quoted on the London and Ghanaian stock exchanges (symbol: TLW). For further information, please refer to: www.tullowoil.com.

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