Mosman Oil and Gas Limited

("Mosman" or the "Company")

Director Holdings

Mosman Oil and Gas Limited (AIM: MSMN) the oil exploration, development, and production company, announces following the passing of the requisite resolution at the Company's Annual General Meeting held on 29 November 2022, Mr Nigel Harvey has commenced his role as a Non-Executive Director of Mosman.

In a correction to the announcement of 7 November, Mr Harvey holds a beneficial interest in 137,500 ordinary shares in the Company.

Enquiries:

Mosman Oil & Gas Limited John W Barr, Executive Chairman Andy Carroll, Technical Director

jwbarr@mosmanoilandgas.com acarroll@mosmanoilandgas.com

NOMAD and Joint Broker

SP Angel Corporate Finance LLP

Stuart Gledhill / Richard Hail / Adam Cowl

+44 (0) 20 3470 0470

Alma PR

Justine James

+44 (0) 20 3405 0205

+44 (0) 7525 324431

mosman@almapr.co.uk

Joint Broker

Monecor (London) Ltd trading as OvalX Thomas Smith

020 7392 1432

Updates on the Company's activities are regularly posted on its website:

www.mosmanoilandgas.com

Notes to editors

Mosman (AIM: MSMN) is an oil 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 of existing exploration permits. The Company has several projects in the US. In addition to exploration projects in the Amadeus Basin in Central Australia.

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