Rockhopper Plugs, Abandons Sea Lion Well

Rockhopper completed operations, on 25 September 2010, to safely plug and abandon the Sea Lion 1 well - the first oil discovery and Contingent Oil Resource in the North Falkland Basin.

Rockhopper has released the Ocean Guardian drilling rig.

The Company is continuing to evaluate the information acquired during its successful drilling and testing of the Sea Lion prospect, in order to plan the next phase in proving the reserves discovered, as well as participating in a number of wells on licenses PL003 and PL004 (Rockhopper: 7.5% working interest), which are operated by Desire Petroleum.

Sam Moody, Managing Director of Rockhopper, commented, "Health, Safety and Environment remain our absolute priority when operating, so I am very grateful to all personnel, both Rockhopper's and its contractors, for their commitment and delivery of safe operations during the drilling of Ernest and testing of Sea Lion."

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