Tullow Oil plc (Tullow) announces that the Shimela-1 well encountered water bearing reservoirs.
Shimela-1 in the South Omo Block, onshore Ethiopia, was drilled to test a prospect in a north-western sub-basin of the vast Chew Bahir basin. The frontier wildcat well encountered lacustrine and volcanic rocks including almost 100 metres of net sandstone reservoir within siltstones and claystones. Trace thermogenic gas shows were recorded at 1,900 metres.
The Exalo 205 rig drilled Shimela-1 to a final depth of 1,940 metres. The rig will now be moved to drill the Gardim-1 wildcat exploration well in a completely separate sub-basin, in the south-eastern corner of the Chew Bahir basin.