Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer

of existing shares to which voting rights are

attached:

Island Gas Resources 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

X

Other (please specify):

3. Full name of person(s) subject to the 

notification obligation:

Roger Smith

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

MoFo Nominees Limited

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

reached:

10 December 2009

6. Date on which issuer notified:

10 December 200

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

reached:

dilution through percentage points

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

GB00B29PWM59

2,564,100

1,564,100

1.72

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

% of voting rights

1,564,100

1.72

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

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:

Ed Lukins

15. Contact telephone number:

020 7920 4064