Smoking chimneys are seen behind the company logo at a Lukoil service station in St. Petersburg November 27, 2012. Iraq would favour bids by Russia's Lukoil and China's CNPC if they decided to buy Exxon Mobil's stake in the super-giant West Qurna-1 oilfield, a senior oil ministry official said this month. REUTERS/Alexander Demianchuk (RUSSIA - Tags: ENERGY BUSINESS COMMODITIES LOGO)