Increased Acreage Holdings, Weald Basin UK

4 September 2014 Doriemus plc ("Doriemus" or the "Company") Increased Acreage Holdings, Weald Basin UK Doriemus Plc (AIM: DOR) is pleased to announce that as a direct result ofdrilling operations commencing at Horse Hill on 2 September 2014, Horse HillDevelopments Ltd ("HHDL") additionally owns a 65% participating interest in theadjacent United Kingdom Petroleum Exploration and Production Licence ("PEDL")246. PEDL 246 covers an area of 43.58 km2 (10,769 acre) immediately east of andadjacent to the 99.29 km2 (24,525 acre) Horse Hill PEDL 137 located in Surrey,where the Horse Hill-1 well is currently being drilled. The transfer of the 65% interest in PEDL 246 to HHDL from Magellan Petroleum(UK) Limited, a subsidiary of Magellan Petroleum Corporation, is conditionalonly on gaining final approval from the UK Secretary of State for Energy andClimate Change. Horse Hill Developments Ltd ("HHDL"), is a special purpose company with a 65%operating interest in PEDL's 137 and 246 in the Weald Basin to the north ofGatwick Airport in Surrey. Doriemus has binding agreements in place to own adirect 10% interest in HHDL. Donald Strang, the Company's Chairman, commented: "The commencement of drilling operations at the Horse Hill-1 well has securedthe HHDL consortium a further 43 km2 of prospective acreage the Weald Basin.This basin is well known for its conventional oil and gas reservoirs." The participants in the PEDL's 137 and 246 are HHDL (65%) and MagellanPetroleum Corporation (35%). Enquiries: Doriemus plc +44 (0) 20 7440 0640Donald Strang/Hamish Harris Cairn Financial Advisers LLP +44 (0) 20 7148 7900Nominated Adviser and BrokerJames Caithie/Jo Turner/Carolyn Sansom