Holding(s) in Company

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: ii

Premier Oil Plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

Yes

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation: iii

CPR Asset Management SA

4. Full name of shareholder(s)  (if different from 3.):iv

5. Date of the transaction and date on which the threshold is crossed or reached: v

02/09/09

6. Date on which issuer notified:

04/09/09

7. Threshold(s) that is/are crossed or reached: vi, vii

8% 

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type of shares

if possible using the ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of Shares

Number of Voting Rights

Number of shares

Number of voting rights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB0033560011

Less than 3%

Less than 3%

Less than 3%

Less than 3%

Less than 3%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date xiii

Exercise/  Conversion Period xiv

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

Convertible Bond (XS0304206161)

27/06/2014

N/A

9,400,000

8.20%

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date xvii

Exercise/ Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

9,422,032

8.22%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: xxi

SAS Rue La Boétie

Crédit Agricole SA

Calyon SA 

Crédit Agricole Cheuvreux SA

Crédit Agricole Cheuvreux International Limited  Less than 3%

Credit Agricole Asset Management Group

CPR Asset Management SA 9,400,000 (8.20%)

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

Figures in 8.A are based on a total number of voting rights of 114,667,959.

Figures in 8.B are based on the projected voting rights of 114,667,959, which includes the additional voting rights attached to the ordinary shares that would need to be issued should the holding in the convertible share class be exercised. 

14. Contact name:

Heather Garratt, Deputy Company Secretary

15. Contact telephone number:

0207 730 1111