7 February 2024

Mosman Oil and Gas Limited

("Mosman" or the "Company")

Result of Extraordinary General Meeting

Mosman Oil and Gas Limited (AIM: MSMN) the hydrocarbon, helium and hydrogen exploration, development, and production company, announces that it held an Extraordinary General Meeting (EGM) in Sydney earlier today.

The Board is pleased to announce that both Resolutions 1 and 2 were passed by way of a show of hands with overwhelming support via proxy, and provides notice this day that in accordance with the previously announced Director Subscription the Company will issue 84,210,526 Shares at 0.0125p per share and 42,105,263 Warrants, exercisable at 0.025p each with a two year expiry, to Executive Director and CEO Andrew Carroll, and 42,105,263 Shares at 0.0125p per share and 21,052,632 Warrants, exercisable at 0.025p each with a two year expiry,to Non-Executive Chairman Nigel Harvey. Following the issue of the shares and warrants, Mr Carroll will hold 147,867,860 shares and 42,105,263 warrants, and Mr Harvey will hold 42,242,763 shares and 21,052,632 warrants.

The following proxies were received in respect of the Resolutions:

Admission to AIM and Total Voting Rights

Application has been made to the London Stock Exchange for the Director Subscription shares, which will rank pari passu with the Company's existing issued ordinary shares, to be admitted to trading on AIM and dealings are expected to commence at 8:00 a.m. on or about 13 February 2024.

Following the issue of the Director Subscription shares, the Company's share and total voting rights will comprise 12,337,362,930 Ordinary Shares of no par value and the Company does not hold any shares in treasury.

Consequently, the above figure may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the share capital of the Company in accordance with the Companies' Articles.

Enquiries:

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

Notes to editors

Mosman (AIM: MSMN) is a hydrocarbon, helium and hydrogen 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.