The announcement is coming in the wake of media speculation in Kenya about the discovery.
Drilling is on-going and, as previously stated by partners Africa Oil Corp on October 26 2012, an announcement of the drilling result is expected in early to mid-November after target depth has been achieved and necessary sampling and analysis has been completed.
The Twiga South-1 structure is the second prospect to be tested as part of a multi-well drilling campaign in Kenya and Ethiopia and is the first discovery in Block 13T following the Ngamia-1 discovery earlier this year in Block 10BB in Kenya.
Tullow has a 50% operated interest in the Twiga South-1 well with Africa Oil holding the remaining 50% interest.
Tullow has recored exploration success to date in Uganda’s Lake Albert Rift Basin and has extended oil search to the prospective East African Rift Basins of Kenya and Ethiopia.