The information contained within this Announcement is deemed by Rockhopper Exploration plc to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014 as it forms part of UK law by virtue of the European Union (Withdrawal) Act 2018 ("MAR").

7  July 2025

Rockhopper Exploration plc

("Rockhopper" or the "Company")

Annulment Insurance Update

Rockhopper Exploration plc (AIM: RKH), the oil & gas company with key assets in the North Falkland Basin, provides the following update in respect of the insurance policy announced on 14^th October 2024 and intended to protect against an unsuccessful outcome in the Ombrina Mare ICSID arbitration.

Following the annulment of the award by the ad hoc Panel, as announced on 3^rd June 2025, Rockhopper submitted claims and statements of loss under the terms of the insurance policy.  

The lead insurer has confirmed that the loss has been triggered and, as a result, Rockhopper is therefore confident it will receive the full €31 million amount to which it is entitled under the policy.  The Company will make a further announcement once the funds are received.

Rockhopper intends to submit a new request for arbitration and is in discussion with the new funder (announced on 20 December 2023) with regard to the timing of this new request.  A further release will be made as and when appropriate.

Enquiries:

Rockhopper Exploration plc

Sam Moody, Chief Executive Officer

Tel. +44 (0)20 7390 0234 (via Vigo Consulting)

Canaccord Genuity Limited (NOMAD and Joint Broker)

Henry Fitzgerald-O'Connor/James Asensio/Charlie Hammond

Tel. +44 (0) 20 7523 8000

Peel Hunt LLP (Joint Broker)

Richard Crichton/Georgia Langoulant

Tel. +44 (0) 20 7418 8900

Vigo Consulting

Patrick d'Ancona/Ben Simons/Fiona Hetherington

Tel. +44 (0) 20 7390 0234