EXI.L Regulatory News (EXI)

30 March 2010

Exillon Energy plc ("Exillon" or the "Company") is pleased to announce the successful testing of the EWS-15 on a 10 mm choke which resulted in an oil flow rate of 1140 bbls/day

The EWS -15 well ("the well"), which was spudded on 29 December 2009, was designed to test the northern extension to the EWS I field. The well flowed water-free oil naturally to the surface with a flow rate of 1140 bbl/day on a 10 mm choke and 570 bbl/day on an 8 mm choke, and was drilled on a turn-key contract for a total consideration of US$ 0.975 million. The well reached target depth within the Jurassic P reservoir at 1827.5 - 1842.7m, confirming the presence of 15.2 m of net oil pay within the Jurassic. This is the thickest net oil pay encountered within the EWS I field to date. The average net oil pay within the Jurassic reservoir of the EWS I field, according to the Miller and Lents September 2009 reserves report is less than 5 m. The well confirmed the presence of a reservoir in the pre-Jurassic complex, though this interval has flowed water from the EWS-15 well.

The well was drilled directionally 1.4 km to the north from the existing EWS I field, and is now being connected to existing production facilities in the EWS I field.

Contact details:

Exillon Energy plc

Nurlan Assilbekov, Investor Relations +971 56 657 0440

+44 79 2001 5131

Media Contacts

Tom Blackwell +7 495 775 0077

Chris McMahon +44 207 466 5000