Exillon Confirms Oil Pay at Exploration Well 4

Exillon announced preliminary results from Exploration Well 4 (EWS-10274), located in West Siberia.

Exploration Well 4 was designed to test an area between the EWS I and EWS II fields. Preliminary results of wire line logging confirmed the presence of 6.7 meters of effective net oil pay in an area that has not been previously studied. These results have expanded the management's understanding of the outline of the EWS fields in a manner which may support further reserve growth.

The well encountered the Jurassic reservoir at 1,883 meters, and is currently being drilled deeper to assess the potential for further oil pay within the Pre Jurassic. Testing of the well is expected to be completed by the end of Q1 2012.