3 June 2024

Rockhopper Exploration plc

(“Rockhopper”, the “Group” or the “Company”)

Posting of Annual Report

&

Notice of Annual General Meeting

Further to the announcement of the Company’s results for the year ended 31 December 2023 on 22 May 2024, Rockhopper (AIM: RKH) confirms that the Annual Report and Accounts for the year ended 31 December 2023 will be available from 12.00 p.m. today on the Company’s website. Hard copies have been posted to those shareholders who elected to receive them, together with documentation for the 2024 Annual General Meeting (“AGM”).

The AGM is scheduled to be held at 10.00 a.m. on Tuesday, 25 June 2024 at The Clubhouse, Skew Bridge, Wilton Road, Salisbury, Wiltshire SP2 9NY.

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/Ana Ercegovic
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