TR-1 Notification of Major Interest in Shares

For filings with the FSA include the annex

For filings with issuer exclude the annes

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached:

Exillon Energy 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

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):

Due to a company reorganization, Capital Research and Management Company ("CRMC") and Capital Group International, Inc. ("CGII") will no longer report relevant holdings under management by CRMC and CGII will be reported in aggregate by The Capital Group Comapnies, Inc. ("CGC"). It is solely for this reason (and not as a result of any additional acquisition or disposal) that CGC is reporting this aggregated holding.

+

3. Full name of person(s) subject to thenotification obligation:

The Capital Group Companies, Inc.

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

See Schedule A

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

3 September 2012

6. Date on which issuer notified:

4 September 2012

7. Threshold(s) that is/are crossed orreached:

Above 7%

8. Notified details:

A: Voting rights attached to shares

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights

Direct

Indirect

Direct

Indirect

Direct

Indirect

Ordinary

(IM00B58FMW76)

12,644,660

12,644,660

12,644,660

12,644,660

7.829%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/Conversion Period

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

% of voting rights

12, 644, 660

7.829%

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

See Schedule A

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will ceaseto hold:

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

13. Additional information:

14. Contact name:

15. Contact telephone number:

As of 3 September 2012

Exillon Energy plc

The Capital Group Companies, Inc. ("CG") holdings

Holding by CG Management Companies and Funds:

*Capital Research and Management Company

*SMALLCAP, World Fund, Inc.

Number of Shares

12,644,660

12,644,660

Percent of Outstanding

7.829%

7.829%

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of Major Interests in Shares

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

The Capital Group Companies, Inc

Contact address

(registered office for legal entities)

333 South Hope Street, 55th Floor

Los Angeles, California 90071

Phone number & email

(213) 615-0469

[email protected]

Other useful information

(at least legal representative for legal persons)

B: Identity of the notifier, if applicable

Full name

Vivien Tan

Contact address

333 South Hope Street, 55th Floor

Los Angeles, California 90071

Phone number & email

(213) 615-0469

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

Fax: (213) 615-4056

C: Additional information

Due to a company reorganization, Capital Research and Management Company ("CRMC") and Capital Group International, Inc. ("CGII") will no longer report relevant holdings under management separately. With effect from 1 September 2012, the holdings under management of CRMC and CGII will be reported in aggregate by the group's parent company. The Capital Group Companies, Inc.