Trading on PLUS Markets

Rockhopper Exploration plc
01 August 2007


1 August 2007

Rockhopper Exploration plc

Rockhopper Exploration shares begin trading on PLUS Markets

Rockhopper Exploration plc (the Company) is pleased to announce that its 
ordinary shares have been admitted to trading on PLUS Markets (under the same 
trading symbol as on AIM: RKH).

PLUS Markets is an independent London-based equity market service, provided by 
PLUS Markets Group plc, which was recently approved as a Recognised Investment 
Exchange.  PLUS Markets is based on a quote-driven trading system and currently 
trades over 900 small and mid-cap company shares representing a combined market 
capitalisation of around GBP200 billion.

The Company's ordinary shares will continue to be quoted and traded on AIM.

Rockhopper Exploration's Managing Director, Sam Moody, commented:

'PLUS Markets provides a route, in addition to AIM, for investors to trade in 
Rockhopper shares and is intended to enhance investor choice, improve liquidity 
for shareholders and provide greater access to investors.'

For further information, please contact:

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

Teather & Greenwood Limited
Tom Hulme - Corporate Finance          020 7426 9000

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


Notes to editors
www.rockhopperexploration.co.uk

The Rockhopper Group started trading in February 2004 to invest in and carry out
an offshore oil exploration programme to the north of the Falkland Islands. The
Group, floated on AIM in August 2005, is currently the largest licence holder in
the North Falkland Basin and has a 100 per cent. interest in four offshore
production licences which cover approximately 5,800 sq. km. These licences have
been granted by the Falkland Islands government.




                      This information is provided by RNS
            The company news service from the London Stock Exchange