The logo of Russia's top crude producer Rosneft is seen at the company's headquarters, behind the Kremlin wall, in central Moscow in this May 27, 2013 file photograph. Rosneft, Russia's top oil ... more 
The logo of Russia's top crude producer Rosneft is seen at the company's headquarters, behind the Kremlin wall, in central Moscow in this May 27, 2013 file photograph. Rosneft, Russia's top oil producer, said on March 4, 2015 that its 2014 net profit was 350 billion roubles ($5.7 billion), down 10 percent year-on-year, due to unfavourable economic conditions. REUTERS/Sergei Karpukhin/Files (RUSSIA - Tags: ENERGY BUSINESS LOGO) less 
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Reuters | Photo By SERGEI KARPUKHIN / REUTERS
Wed, Mar 4, 2015 11:32 AM EST