Notification of Major Interest in Shares

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

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

Afren Plc

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

An acquisition or disposal of voting rights

X

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

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

AXA S.A, 25 Avenue Matignon, 75008 Paris and its group of companies

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

28 September 2010

6. Date on which issuer notified:

29 September 2010

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

10%

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

Direct

Indirect

B067275

87,128,989

87,128,989

300,000

300,000

89,699,452

0.03

10.07

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

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

89,999,452

10.10%

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

Name of the Company / Fund

Number of Shares

%of Issued share capital

Alliance Bernstein

Indirect

1,256,082.00

0.140955

Alliance Capital Management

Indirect

3,244,451.00

0.364087

AXA Financial, Inc

Indirect

76,074,394.00

8.536934

AXA France

Indirect

2,826,091.00

0.317139

AXA IM UK

Direct

300,000.00

0.033665

AXA IM UK

Indirect

6,298,434.00

0.706799

Total Direct

Total Indirect

300,000

89,699,452

0.03367

10.06591

TOTAL

89,999,452

10.09958

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:

14. Contact name:

Kyere Tabiri

15. Contact telephone number:

020 7003 1510