Doriemus PLC - UK Government OGA Authority Granted

23 October 2017

Doriemus Plc

("Doriemus" or the "Company")

UK Government Oil and Gas Authority Approval Granted

Brockham Oil Field, Weald Basin, UK

Doriemus plc (Listed in Australia ASX:DOR and listed in London NEX:DOR) (“Doriemus” or the “Company”), is pleased to announce that it has been informed by the operators of the Brockham Oil Field, Angus Energy Plc (the “operator”), that it has received final approval from the UK Government’s Oil and Gas Authority (“OGA”) for its Field Development Plan Addendum at the Brockham Oil Field (Production License PL235).

David Lenigas, Doriemus’s Executive Chairman, commented; “This is excellent news for the Brockham Oil Field. We at Doriemus now have a great deal of activity happening at both our Brockham and Lidsey Oil Fields and will soon be conducting the extended well testing programme at the Horse Hill -1 “Gatwick Gusher” well as announced last week.  

The Brockham Oil Field is a fully permitted production licence and sits immediately north-west of the Horse Hill licences, in which Doreimus holds an interest.

This OGA approval is the final regulatory consent needed to begin production from the Kimmeridge layers in well BR-X4Z (“X4Z”).

The X4Z Well will inititially produce from a 200 meter (“m”) naturally fractured section of a 385m thick Kimmeridge interbedded shale and limestone layer. Further technical quidance can be found in the Company’s news release of 3 March 2017. In Summary from the 3 March news release stated:

“The Brockham X4Z well, drilled to a total depth of 1,391m, was planned to evaluate the Portland, Corallian and Kimmeridge formations at Brockham including an evaluation of the Kimmeridge reservoir that had been demonstrated by the Horse Hill discovery 8 km to the South. The operator of the  well at Horse Hill has announced cumulative production rates of over 1,500 barrels per day in short term testing. The Brockham X4Z well was intended to establish whether the evidence of a potential reservoir  reported at Horse Hill extended further North into the Brockham Licence.

The operator announced that the preliminary results from Brockham X4Z confirm very similar thickness of reservoir and properties to those reported at Horse Hill. The gross thickness of Kimmeridge in  Brockham X4Z is some 385m thick. The two limestone intervals (each around 30m) tested in Horse Hill are also seen in the Brockham well. The reservoir properties appear to be very similar to Horse Hill, based on electrical logging evidence.”

Prior to initiating production, the operator will first install a connection to the UK’s National Grid for the  distribution of excess power generated on-site. This power generation will have the added benefit of allowing the Company to supply surplus power to the National Grid.

Upon completion of this installation, production from X4Z will commence. Doriemus will update the market in due course.

The Company reiterates there will be no hydraulic fracturing or “fracking” at the Brockham Oil Field.

Interest in Brockham Oil Field (PL 235):

Doriemus owns a 10% direct interest in the Brockham Oil Field which is held under UK Production Licence PL 235.

The directors of the Company accept responsibility for the contents of this announcement.

CONTACTS:

For further information on this update or the Company generally, please visit our website at

www.doriemus.co.uk or contact:

Doriemus Plc

UK Contacts:

David Lenigas (Executive Chairman)                                                                         [phone]

Greg Lee (Technical Director)                                                                                    

Australia Contacts:

Julia Beckett (Joint Company Secretary)                                                            [phone]

Email: [e-mail]

UK Advisors:

Peterhouse Corporate Finance Limited                                                                 [phone]

Guy Miller

Fungai Ndoro

FORWARD LOOKING STATEMENTS AND IMPORTANT NOTICE:

This document may contain forward looking statements that are subject to risk factors associated with the oil and gas industry. It is believed that the expectations reflected in these statements are reasonable, but they may be affected by many variables which could cause actual results or trends to differ materially.

Investors should make and rely upon their own enquiries before deciding to acquire or deal in the Company’s securities.

This report contains forecasts, projections and forward looking information.  Although the Company believes that its expectations, estimates and forecast outcomes are based on reasonable assumptions it can give no assurance that these will be achieved.  Expectations, estimates and projections and information provided by the Company are not a guarantee of future performance and involve unknown risks and uncertainties, many of which are out of the Company’s control.  Actual results and developments will almost certainly differ materially from those expressed or implied. The Company has not audited or investigated the accuracy or completeness of the information, statements and opinions contained in this report.  To the maximum extent permitted by applicable laws, the Company makes no representation and can give no assurance, guarantee or warranty, express or implied, as to, and takes no responsibility and assumes no liability for (1) the authenticity, validity, accuracy, suitability or completeness of, or any errors in or omission from, any information, statement or opinion contained in this report and (2) without prejudice to the generality of the foregoing, the achievement or accuracy of any forecasts, projections or other forward looking information contained or referred to in this report.

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