Block Listing Application

PREMIER OIL PLC

Block Listing Application

A block listing application has been made for 1,500,000 Ordinary Shares of 50p each in the Company to be admitted to the Official List of the UK Listing Authority and to trading on the London Stock Exchange.

These shares will be used to satisfy existing and future awards under the Premier Oil plc Asset and Equity Plan.

It is expected that admission will become effective on 25 March 2011. The shares will be issued fully paid and will rank pari passu in all respects with the existing issued Ordinary Shares of the Company.

For further information please contact:

Stephen Huddle

Premier Oil plc

0207 730 1111

24 March 2011