UPDATE 1-Putin flags wider investigation into contaminated Russian oil  Reuters Africa... * Unidentified Russian producer contaminated oil. * Investigation into case is needed - Putin (Adds details, quotes, context). BEIJING, April 27 (Reuters) . …

UPDATE 1-Putin flags wider investigation into contaminated Russian oil  Reuters... * Unidentified Russian producer contaminated oil. * Investigation into case is needed - Putin (Adds details, quotes, context). BEIJING, April 27 (Reuters) ... Read …

UPDATE 1-Russia says its oil supplies to North Korea are negligibleReutersXIAMEN, China, Sept 5 (Reuters) - President Vladimir Putin said on Tuesday that Russian oil supplies to North Korea were negligible, responding to heightened international scrutiny o …