The Nsoga-5 well was the first of a multi-well appraisal program planned to further evaluate the extent and production potential of oil accumulations in the greater Nsoga area. The well has now been suspended for future re-entry.

The OGEC IRI-750 rig will now move 2km south to the Kigogole field where it will drill the Kigogole-5 appraisal well.

Tullow has interests in three licenses in the Lake Albert Rift Basin in Uganda. Tullow operates Block 2 with a 100% interest and has a 50% interest in Blocks 1 and 3A which are operated by Heritage Oil (50%).

Angus McCoss, exploration director of Tullow, said: “Another successful well in the Butiaba appraisal campaign further enhances our understanding of these high quality stacked fluvial reservoirs and will assist with the basin-wide development plan that Tullow and its new partners will be working on during the second half of 2010.”