Tullow Oil’s Twiga South-1 exploration well onshore Kenya Block 13T has encountered oil, the company reported.

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 it is the first discovery in block 13T following the Ngamia-1 discovery earlier this year in Block 10BB, according to a news release.

Tullow has a 50% operated interest in the Twiga South-1 well with Africa Oil holding the remaining 50% interest.