Quantum Helium LimitedLSE: QHE

EPA 155 Update

11 December 2024

Mosman Oil and Gas Limited

("Mosman" or the "Company")

EPA 155 Update

Mosman Oil and Gas Limited (AIM: MSMN) the helium, hydrogen and hydrocarbon exploration, development and production company, notes Georgina Energy's announcement that "following the successful meeting in Alice Springs on 11th September between the Central Land Council ("CLC") and the Traditional Owners ("TOs"), the CLC has been formally instructed to commence negotiations regarding the grant of the Company's selected priority area within the EPA 155 permit area, which includes the proposed Mt Winter 1 well target".

See the full announcement here: www.londonstockexchange.com/news-article/GEX/epa155-mt-winter-approval-update/16805390

Enquiries:

Mosman Oil & Gas Limited

Andy Carroll

CEO

acarroll@mosmanoilandgas.com

NOMAD and Joint Broker

SP Angel Corporate Finance LLP

Stuart Gledhill / Richard Hail / Adam Cowl

+44 (0) 20 3470 0470

Alma

Justine James / Will Merison

+44 (0) 20 3405 0205

mosman@almastrategic.com

Joint Broker

CMC Markets UK Plc

Douglas Crippen

+44 (0) 020 3003 8632

Updates on the Company's activities are regularly posted on its website: www.mosmanoilandgas.com

Notes to editors

Mosman (AIM: MSMN) is a helium, hydrogen and hydrocarbon exploration, development, and production company with projects in the US and Australia. Mosman's strategic objectives remain consistent: to identify opportunities which will provide operating cash flow and have development upside, in conjunction with progressing exploration. The Company has several projects in the US, in addition to exploration projects in the Amadeus Basin in Central Australia.