June oil production

West Siberian Resources Ltd’s oil production during June amounted to 166,569 barrels or 5,552 barrels per day. Total production for the second quarter 2005 amounted to 494,000 barrels or 5,485 barrels per day. In the second quarter of 2004, oil production averaged 1,633 barrels per day.

Oil was produced from the Middle Nyurola-, Kluchevskoye-, Puglalymskoye- and Khvoinoye fields. Three new wells were put on production during the month. Well 126 was on production during 29 days, well 141 for 16 days and well 122 for 8 days. Two wells are currently being drilled at Middle Nyurola. At the Khvoinoye-field, both wells were shut-in in the middle of the month for hydro fracturing work. The wells will be back on production late in July. “We set new production records in June at Middle Nyurola as the new wells came on line. Total production was, however, affected by work-over activities at Khvoinoye” Maxim Barski, West Siberian Resources Ltd’s Managing Director stated in a comment to the production report. For further information: Maxim Barski, Managing director, West Siberian Resources Ltd., tel. +7 095 723 07 18 Eric Forss, Chairman, West Siberian Resources Ltd., tel. +46 8 613 00 85 Also visit www.westsiberian.com