2D Seismic Survey

Rockhopper Exploration plc
17 December 2007


Press Release

17 December 2007

Rockhopper Exploration ('Rockhopper')


              Rockhopper commissions additional 2D seismic survey

Rockhopper Exploration, the North Falkland Basin oil and gas exploration
company, is pleased to announce that, following the recently completed Ernest
site survey, Wavefield Inseis is to acquire additional 2D seismic over the
Weddell prospect and other targets, focusing in the south east of licence PL024.

The Weddell prospect, which is located near the Islands in less than 150m of
water, has been mapped on existing 2D and has an unrisked P50 of 254 million
barrels of recoverable oil. This survey will allow Rockhopper to refine the
mapping and to begin to prepare the target for possible drilling.

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

'Ongoing work on the existing seismic data has identified a number of very
interesting structures in the south east of licence PL024. We are taking the
opportunity while there is a vessel is in the area to acquire further 2D seismic
data which will enable us to take a closer look at Weddell as well as other
structures in the area.'


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
Tom Hulme                              020 7426 9000


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 3,800 sq. km. These licences have
been granted by the Falkland Islands government.



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