10 July 2020

Mosman Oil and Gas Limited

("Mosman" or the "Company")

Amadeus Basin Permit EP145

Mosman Oil and Gas Limited (AIM: MSMN) the oil exploration, development and production company, announces that the relevant Minister in the Northern Territory Government has advised that Mosman's application for a suspension and extension to the work programme conditions for EP145 has been approved.  The approval provides additional time to arrange access to the permit area and to conduct further environmental works and preliminary logistics, once the COVID-19 restrictions are lifted.

This results in the suspension of the previously required work programme for Permit year three for a 12 month period to 21 August 2021 and the extension of the Exploration Permit until 21 August 2023.

Market Abuse Regulation (MAR) Disclosure

Certain information contained in this announcement would have been deemed inside information for the purposes of Article 7 of Regulation (EU) No 596/2014 until the release of this announcement.

Enquiries:

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