Record half-yearly results - Continually building long-term business value

27 August 2008 – Tullow Oil plc (‘Tullow’), the independent oil and gas exploration and production group, announces its half-yearly results for the six months ended 30 June 2008.

The first half of 2008 has been outstanding for Tullow. The Group has delivered record financial results, an excellent exploration performance and material progress towards first oil from both the Jubilee field in Ghana and the EPS in Uganda.

Commenting today, Aidan Heavey, Chief Executive, said:

“Tullow continues to make superb progress and I am delighted to report today’s record results. Our Exploration, Production and Development teams delivered another excellent performance during the first half of the year, while successful portfolio management has strengthened our financial position. The next six months promise to be very exciting as our high impact exploration and appraisal campaigns in Ghana and Uganda gather momentum and we continue to build the long-term value of our business.”