Total Voting Rights

PREMIER OIL PLC 

Total Voting Rights

In conformity with the FSA's Disclosure and Transparency Rules, we would like to notify the market of the following:

As at 28 May 2010 Premier Oil plc's issued share capital consists of 116,373,066 Ordinary Shares of 50p with voting rights. Premier Oil plc does not hold any shares in Treasury.

The figure of 116,373,066 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Premier Oil plc under the FSA's Disclosure and Transparency Rules.

For further information please contact:

Heather Garratt

Premier Oil plc

0207 730 1111

28 May 2010