Holding(s) in Company

Rockhopper Exploration plc
22 August 2005


Rockhopper Exploration plc
22 August 2005

                   Rockhopper Exploration plc ('the Company')

                              Holdings in Company

The Company was notified on 16 August 2005 by Mineworkers Pension Scheme that it
held 3,571,428 ordinary shares in the Company, representing 4.98 per cent of the
Company's issued share capital. The shares were registered in the names of
Mineworkers Pension Scheme (Chase GIS) Nominees Ltd.


ends



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