Weather Delays Tullow's Uganda Drilling Program

Tullow Oil

Tullow reports that the Ngassa-1 exploration well in Block 2 Uganda commenced drilling on November 17, 2007. The well is being drilled by the Nabors 221 rig and will test the high impact Ngassa prospect which is located beneath Lake Albert. The Nabors 221 rig has been specifically mobilized to the region in order to drill deep prospects located under the lake from onshore locations.

Drilling startup was delayed as a result of heavy rain which slowed construction on the drill site. The well has a planned length of 4,900 meters and is expected to take approximately 110 days to reach the primary target. The well has already been drilled to a depth of 311 meters.

Poor weather conditions have also impacted the start of the Mputa-4 well test. This extended flow test commenced on November 12th and interpreted results are expected in early December.


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