Tullow Oil plc  
Total Voting Rights

In conformity with the FSA's Disclosure and Transparency Rules, Tullow Oil plc today announces the following:

As at the date of this announcement, Tullow Oil plc's issued share capital consists of 724,768,338   ordinary shares (with a nominal value of 10p each) with voting rights. No ordinary shares are held in treasury.

Therefore, the total number of voting rights in Tullow Oil plc is 724,768,338. 

The above figure may be used by shareholders as the denominator for the calculation by which they will determine if they are required to notify their interest in, or a change to their interest in, Tullow Oil plc under the FSA's Disclosure and Transparency Rules.

1st July 2008

This announcement has been issued through the Companies Announcement Service of

the Irish Stock Exchange.

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