3 August 2015

Mosman Oil and Gas Limited

("Mosman" or the "Company")

Potential Acquisition Clarification

Mosman Oil and Gas Limited (AIM: MSMN) the New Zealand ("NZ") and Australia focussed oil exploration and development company, announced on 28 July 2015 that it has been designated preferred bidder status and granted a period of exclusivity on a potential acquisition with a total purchase consideration of approximately £4.2 million for 100 per cent of the acquisition.  Mosman's current intention is to acquire 40 per cent of the potential acquisition and it is working to progress  agreements with now selected non-related joint venture partners.  Mosman's intended 40 per cent interest will require it to pay approximately £1.7 million of the total purchase consideration.

Enquiries

Updates on the Company's activities are regularly posted on its websitewww.mosmanoilandgas.com

About Mosman

Mosman (AIM: MSMN) is an Australia and New Zealand focused oil exploration and development company with a strategy to build a sustainable mid-tier oil and gas business by acquisition and organic growth.  Currently, Mosman has a total of ten permits or accepted permit applications in New Zealand and Australia.

Petroleum Creek Project, New Zealand

Mosman owns 100% of permit PEP 38526, the Petroleum Creek Project, which is a 143 sq. km low cost onshore exploration project located near Greymouth on the South Island in the southern extension of the proven Taranaki oil system.

Taramakau, Murchison and East Coast Permits, New Zealand

These permits were granted to Mosman on 9 December 2014 as part of the 2014 Block Offer, a sixteen-fold increase in the exploration area in NZ from 143 sq km to 2,317 sq km.

Officer Basin Project, Australia (Application)

Mosman has a 25% investment in the Officer Basin Project, a 22,527 sq. km large land holding with significant exploration potential, which lies in one of the more explored parts of the Basin with road access. The project area is in the Western Australian part of the Officer Basin and offers both conventional and unconventional potential with hydrocarbon shows reported and all elements of a petroleum system are present.

Amadeus Basin Projects, Australia

Mosman owns 100% of two granted permits and one application in the Amadeus Basin in Central Australia which total of 5,458 sq. km. The Amadeus Basin is considered one of the most prospective onshore areas in the Northern Territory of Australia for both conventional and unconventional oil and gas, and hosts the producing Mereenie, Palm Valley and Surprise fields.

Otway Basin Project, Australia

Mosman owns 30% of VIC/P62 in the Otway Basin. The permit was recently renewed and is in relatively shallow water. The 70% permit holder funded a 3D seismic survey in 2013. The results of the 3D seismic survey are now being integrated into a geological model to allow identification and ranking of drilling targets. Within the Otway Basin there is commercial production both onshore and offshore.