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flowed at a test rate of 5,200 barrels per day of 36-degree API gravity crude oil and approximately 5.3 million cubic feet per day of associated natural gas. 

The Mahogany-2 well, which lies in the West Cape Three Points licence, has been drilled to a total depth of 3,443 metres by the Songa Saturn drillship in water depths of 1,080 metres. A single zone covering an interval of 17 metres was tested through a 40/64-inch choke resulting in a flowing tubing head pressure of 1,540 pounds per square inch. This flow rate was however severely limited by the available test equipment and facilities.

These favourable results confirm that the Turonian turbidite reservoirs of the Jubilee Field are highly productive and validates the geological and reservoir model. Oil samples will now be acquired to conduct comprehensive refinery assays before the well is suspended as a potential development well and the rig released.

Development planning for the Jubilee field is ongoing and Tullow has secured the Blackford Dolphin and the Eirik Raude deepwater rigs for an extended programme of appraisal, development and exploration drilling in both the West Cape Three Points and the Deepwater Tano licences. This programme is scheduled to commence later this year.

Commenting today, Aidan Heavey, Chief Executive of Tullow said:

“These excellent well test results are in line with our expectations, confirming the high quality reservoir characteristics and supporting our view that the completed Jubilee production wells should be capable of flowing at rates in excess of 20,000 bopd. These results support the decision by the Jubilee partnership to progress with a fast track appraisal and development programme targeting first oil in 2010.”

Notes to Editors

 Partnership Equity  Deepwater Tano  West Cape Three Points
 Tullow  49.95%  22.90%
 Kosmos  18.00%  30.88%
 Anadarko  18.00%  30.88%
 Sabre Oil & Gas  4.05%  1.85%
 E.O. Group    3.50%
 Ghana National Petroleum Corporation  10.00%  10.00%