Shareholder Information

Shareholder Enquiries
All enquiries concerning shareholdings including notification of change of address, loss of a share certificate or dividend payments should be made to the Company’s registrars, Computershare Investor Services PLC whose contact details are as follows:

Computershare Investor Services PLC
P.O Box 82
The Pavilions
Bridgwater Road
Bristol
BS99 7NH

email: webqueries@computershare.co.uk

Telephone number UK shareholders: 0870 703 6242
Telephone number Irish shareholders: 01 216 3744
Telephone number other shareholders: +44 870 703 6242


Computershare Online Enquiry Service
Computershare provides a range of services through its free online shareholder enquiry service at www.computershare.com. This service, accessible from anywhere in the world, enables shareholders to check details of their shareholdings or dividends, download forms to notify changes in personal details and, access other relevant information.

Payment of Dividends
Shareholders can have their dividends paid directly into a UK or Irish bank account and have the tax voucher sent directly to their registered address. Please contact Computershare for a dividend mandate form or download a dividend mandate form from Computershare’s online enquiry service detailed above.

Electronic Communication
Shareholders have the option to receive shareholder communications including annual reports, interim reports and notices of meetings electronically. To register for this service shareholders should log into the Computershare website www.computershare.com and follow the instructions. Once registered, shareholders will be emailed when an Annual Report, Interim Report or Notice of Meeting is available for viewing on the Tullow Oil website.

Share Dealing Service
A telephone share dealing service has been established for shareholders with Computershare for the buying and selling of Tullow Oil shares. To view more information on the service please click here and select Tullow Oil plc on the drop down menu, under find out more, at the bottom of the page.

For UK shareholders: 0870 703 0084
For Irish shareholders: 1890 924 995
Other shareholders: 0044 141 270 3203

Financial Calendar

Financial year end 31 December 2007
Results announced 12 March 2008
Annual General Meeting 14 May 2008
2007 Interim results announced August 2008


Dividend Payments

Final dividend payable June 2008
2007 Interim dividend payable November 2008


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