Blocklisting Interim Review

Name of applicant:

Premier Oil plc 

Name of scheme:

Premier Oil plc Executive Share Option Scheme (1995)

Period of return:

From:

01.01.08

To:

30.06.08

Balance under scheme from previous return:

1,331,281

The amount by which the block scheme has been increased, if the scheme has been increased since the date of the last return:

Nil 

Number of securities issued/allotted under scheme during period:

47,561

Balance under scheme not yet issued/allotted at end of period

1,283,720

Number and class of securities originally listed and the date of admission

1,000,000 Ordinary Shares of 50p (04.05.2004)

1,300,000 Ordinary Shares of 50p (15.06.2005)

Total number of securities in issue at the end of the period

82,158,733

Name of contact:

Heather Garratt

Address of contact:

23 Lower Belgrave Street, London, SW1W 0NR 

Telephone number of contact:

0207 730 1111