West Siberian Resources Ltd: Interim report for the quarter ended March 31, 2006

• Total revenue increased by 338% to MUSD 42.6 (MUSD 9.7)* • EBITDA amounted to MUSD 14.9 (MUSD 3.2) • The result before tax and minority interests improved to MUSD 7.6 (MUSD 2.3) • Net result after tax reached MUSD 6.3 (MUSD 2.0) • Earnings per share amounted to USD 0.01 (USD 0.00) • Oil production increased by 220% to 1,421,872 barrels • MUSD 162.4 in equity raised for the Saneco acqusition and debt repayment • Strategic entry into Volga Urals and strategic alliance formed with Repsol YPF