Annual Maintenance Shutdown Completion

5 August 2026

Angus Energy PLC

 ("Angus Energy", the "Company" or together with its subsidiaries, the "Group")

(AIM:ANGS)

Annual Maintenance Shutdown Completion

· Annual maintenance shutdown completed safely, with no accidents, injuries or harm to the environment.

· Production resumed intermittently on 28th July 2026 and now up to full capacity, following the successful completion of the annual maintenance programme.

Annual Maintenance Programme Completed

Further to the Company's announcement of 15 July 2026 regarding the planned annual maintenance shutdown at the Saltfleetby Gas Field, Angus Energy is pleased to confirm that the programme has been successfully completed.

The maintenance shutdown, together with the associated programme of subsurface data acquisition, was completed safely, with no accidents, injuries or harm to the environment.

Production resumed on 28th July 2026 and ramped up to full capacity on August 4th, 2026. As part of the normal post-maintenance recommissioning process, the Company has been progressively returning the facilities to full operating capacity. Current production now exceeding the pre-shut down rates due to a combination of flush production from the shut-ins and more efficient operations post maintenance activity.

The Company thanks its employees and contractors for the safe and successful execution of the programme.

END

For further information please visit www.angusenergy.co.uk.

Angus Energy Plc  

Carlos Fernandes

Finance Director Via Flagstaff

SP Angel Corporate Finance LLP (Nomad and Broker) www.spangel.co.uk

Stuart Gledhill / Jen Clarke / Richard Hail Tel:+44 (0)20 3470 0470

OAK Securities (Joint Broker) www.oak-securities.com

Calvin Man / Oliver Morgan Tel: +44 (0)20 3973 3678

Flagstaff PR/IR [email protected]

Tim Thompson / Fergus Mellon / Alison Alfrey Tel:+44 (0) 207 129 1474

About Angus Energy plc

Angus Energy plc is a UK AIM quoted independent oil and gas company. Angus is the leading onshore gas producer in the UK and has ambitious plans to grow onshore production and diversify internationally. Angus Energy has a 100% interest in the Saltfleetby Gas Field (PEDL005), majority owns and operates conventional oil production fields at Brockham (PL 235) and Lidsey (PL 241) and has a 25% interest in the Balcombe Licence (PEDL244). Angus Energy operates all fields in which it has an interest.