Issue of Equity

Rockhopper Exploration plc
13 September 2007

Rockhopper Exploration PLC ('the Company')


Issue of equity


Rockhopper Exploration plc (the 'Company') announces that, following receipt of
a Notice of Exercise on 5 September 2007, options have been exercised in respect
of 1,980 new ordinary shares of 1p each in the Company ('Ordinary Shares').


The option to purchase Ordinary Shares was granted on 10 May 2005.



Application has been made for the new Ordinary Shares to be admitted to trading
on AIM on or around 19 September 2007. The new Ordinary Shares will rank pari
passu with the existing ordinary share capital of the Company and have been
allotted and issued credited as fully paid.



Following admission, the total issued share capital of the Company will increase
to 75,665,285 Ordinary Shares.



For further information, please contact:



Rockhopper Exploration plc          www.rockhopperexploration.co.uk
Sam Moody - Managing Director       01722 414 419



Aquila Financial Ltd                www.aquila-financial.com
Peter Reilly                        020 7202 2601
Yvonne Fraser                       020 7202 2609



Landsbanki Securities (UK) Limited - Corporate Finance
Andrew Matharu                       020 7426 9000
Tom Hulme


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