Blocklisting Interim Review

Name of applicant:

Premier Oil plc

Name of scheme:

Premier Oil plc Executive Share Option Scheme (1995) 

Period of return:

From:

01.01.10

To:

30.06.10

Balance of unallotted securities under scheme from previous return:

1,283,720

The amount by which the block scheme has been increased since the date of the last return (if any increase has been applied for):

Nil

Number of securities issued/allotted under scheme during period:

Nil

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

1,283,720

Name of contact:

Heather Garratt

Telephone number of contact:

0207 730 1111

Name of applicant:

Premier Oil plc

Name of scheme:

Premier Oil plc Savings Related Share Option Scheme 2003

Period of return:

From:

01.01.10

To:

30.06.10

Balance of unallotted securities under scheme from previous return:

25,476

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

60,445

Number of securities issued/allotted under scheme during period:

26,981

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

58,940

Name of contact:

H Garratt

Telephone number of contact:

0207 730 1111

Name of applicant:

Premier Oil plc

Name of scheme:

Premier Oil plc Savings Related Share Option Scheme 2009

Period of return*:

From:

02.06.10

To:

30.06.10

Balance of unallotted securities under scheme:

100,000

The amount by which the block scheme has been increased since the date of the last return ( if any increase has been applied for):

Nil

Number of securities issued/allotted under scheme during period:

Nil

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

100,000

Name of contact:

H Garratt

Telephone number of contact:

0207 730 1111