Tullow concludes Jubilee appraisal

Tullow Oil has completed its appraisal drilling program in the southeast Jubilee area offshore Ghana.

Offshore staff

LONDON-- Tullow Oil has completed its appraisal drilling program in the southeast Jubilee area offshore Ghana.

Drilling data and wireline logs from the Mahogany-5 appraisal well suggest that total net oil pay of 23 m (75 ft) was penetrated in sandstone reservoirs over a gross interval of 51 m (167 ft).

Reservoir fluid samples recovered 28-32º API oil, while pressure data have confirmed reservoir communication with the previous Mahogany-4 well. This follows earlier successes for Tullow at the Mahogany-3 and Mahogany Deep-2 wells.

The partners continue geoscience and engineering studies to establish the potential resource range and to advance development planning for this area.

The latest well was drilled by the semisubmersible Atwood Hunter to a TD of 3,988 m (13,084 ft) in a water depth of 1,149 m (3,769 ft). The location was 62 km (38 mi) offshore, and around 7 km (4.3 mi) southeast of Mahogany-1 (the Jubilee discovery well).

The rig is due to leave Ghana to work for another operator, but will return in the fall to start a planned nine-month drilling program in the West Cape Three Points license, where Tullow has a 22.896% interest. Kosmos Energy is the operator.

“Future exploratory drilling in the West Cape Three Points license, including the adjacent Teak, Dahoma-Updip and South Central Channel prospects, aims to discover even more hydrocarbons to enhance the commercial development of this license,” said Angus McCoss, Tullow exploration director.

06/09/2010

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