Doriemus PLC

("Doriemus" or the "Company")

Horse Hill-1 Oil Discovery, Weald Basin, UK

Flow Test Consent from the UK Environment Agency

Doriemus (AIM: DOR) is pleased to announce that it has been informed by Horse Hill Developments Limited ("HHDL") that the Environment Agency ("EA") has formally granted the necessary permit to flow test the Horse Hill-1 ("HH-1") oil discovery well. The HH-1 well, drilled at the end of 2014, is located within onshore exploration Licence PEDL137, on the northern side of the Weald Basin near Gatwick Airport, in which Doriemus owns a 6.5% interest.

Operational planning for the test is in the final stages of completion and the necessary work-over rig and test equipment have been contracted. The Company expects these flow tests to be conducted in the coming months following the last remaining regulatory sign-offs from the Health and Safety Executive ("HSE") and Oil and Gas Authority ("OGA").

The flow test is designed to test both the oil bearing Upper Portland sandstone reservoir and the Kimmeridge limestone reservoirs beneath the Portland. The test will provide the necessary reservoir engineering data to enable the Company to assess the commercial viability of the Portland sandstone oil discovery, which encountered significant oil shows whilst drilling, and to further the "proof of concept" process for the Kimmeridge tight oil play, which has previously been shown to flow oil elsewhere in the same formations of the Weald Basin at Balcombe, some 10 miles to the south.

Doriemus' interest in Horse Hill

The HH-1 well is located within onshore exploration Licence PEDL137, on the northern side of the Weald Basin near Gatwick Airport. Doriemus owns a 10% direct interest in HHDL. HHDL is a special purpose company that owns a 65% participating interest and operatorship of Licence PEDL137 and the adjacent Licence PEDL246 in the UK Weald Basin.

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