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:

Exillon Energy 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:

FIL Limited

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

 See attached schedule

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

30 June 2010

6. Date on which issuer notified:

02 July 2010

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

 5%

8. Notified details:

A: Voting rights attached to shares

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

Direct

Direct

Indirect

Direct

Indirect

 IM00B58FMMW76

 5,403,400

 5,403,400

 6,928,100

 6,928,100

 5.01

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date

Exercise/ Conversion Period

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

Resulting situation after the triggering transaction

Type of financial instrument

Exercise price

Expiration date

Exercise/ Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

 6,928,100

 5.01

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

See attached schedule

Proxy Voting:

10. Name of the proxy holder:

 FIL Limited

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

1,524,700

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

30 June 2010

13. Additional information:

 None

14. Contact name:

 Shaheen Hussain

15. Contact telephone number:

[email protected]

FIL

FIL

Issuer name:

EXILLON ENERGY PLC

Current ownership percentage:

5.01%

Total shares held:

6,928,100

Issued share capital:

138,072,911

SHARES HELD

NOMINEE

MANAGEMENT COMPANY

FIL Limited (FIL) is the parent

3,766,700

BROWN BROS HARRIMN LTD LUX

FIL

holding company for various direct and indirect

164,000

BROWN BROTHERS HARRIMAN AND CO

FIJ

subsidiaries, including FIL Fund Management

478,200

JP MORGAN, BOURNEMOUTH

FIL

Limited (FFML), FIL Investment Services Ltd

2,397,200

JP MORGAN, BOURNEMOUTH

FISL

(FISL), FIL Gestion (FIGEST), FIL

122,000

KOOKMIN BANK

FIL

Asset Management (Korea) Limited (FIAKL),

FIL Investments Management (Hong Kong)

Limited (FIMHK), FIL Pension Management

(FPM), Fidelity Investments Japan (FIJ) and FIL

Investments International (FII), investment managers

for various non-US investment companies and

institutional clients.