Lidsey Production Update

16 December 2013 Doriemus Plc ("Doriemus" or the "Company") Lidsey Oilfield Update - Lidsey-1 flows 312 bopd at restricted flow rate. Doriemus Plc (AIM: DOR) announces that the Lidesey-1 well (that Doriemus has a20 per cent. working interest in), in the UK Weald basin, is flowing oil at arestricted rate of 312 bopd after the successful recompletion and theperforation programme. The ultimate production potential of the well is notknown at this stage, as oil production is restricted due to the currentlimiting capacity of the pumping facilities. Donald Strang, the Company's Chairman, commented; "Oil production has now increased by over 1,000 per cent. from the 25 bopdreported prior to the commencement of the work-over programme. This is a recordfor the Lidsey oil field. At this flow rate, cost of oil production is lessthan $10 a barrel." "The Lidsey-1 well work-over has been a success and the Company is lookingforward to participating in the proposed Lidsey-2 well next year." "The short term production focus for the Company will now shift to Brockham,where a well improvement programme is currently underway and where the partnersplan for a new side track/work-over well on Brockham-4 early in 2014." The Lidsey-1 well flowed naturally to surface post perforation. After being putto pump, the well was flowing at the pump's maximum operational capacity of 312bopd. The operator, Angus Energy Weald Basin No.3 Limited ("Angus Energy"),have decided to flow the well at this rate for a period to assess the well'sperformance, whilst reviewing the alternatives on how best to optimize thewell's performance. Re-logging of the well in the past few days has shown that the totalunperforated virgin oil bearing formation in the Greater Oolite formation hasnow been increased by 28 feet. Due to the success of this work-over programme,the operator has opted to stay with the previously announced 15 feet ofperforations in to the formation. Further perforations may be undertaken in duecourse. As a result of the better than expected flow rates and the re-logging onLidsey-1, the publishing of the expected CPR will now be delayed until January2014 so as to incorporate the new logging and production data in to the CPR. -END- For further information please contact: Doriemus plc +44 (0) 20 7440 0640 Donald Strang / Hamish Harris Sanlam Securities UK Limited +44 (0) 20 7628 2200 Nominated Adviser and Broker Simon Clements / Virginia Bull Notes to Editors: The Lidsey Oilfield is owned by Angus Energy Weald Basin No. 3 Limited (80%interest and Operator) and Doriemus (20% interest), and is held under UnitedKingdom Production Licence PL241. Lidsey has one vertical producing well(Lidsey-1) in the Jurassic, Great Oolite reservoir producing 38 API oil. TheLidsey surface facilities are fully permitted and operational with onsite oilstorage of 2,000 barrels. All production is currently sold to the Perenco BPrefinery.