Reuters | Oil slips on OPEC cut extension doubts, Russia output worries Reuters Russian oil output could climb to its highest rate in 30 years if the Organization of the Petroleum Exporting Countries and non-OPEC producers do not extend a six-month supply reduction deal beyond June 30, according to comments by Russian officials ... This OPEC Country Has the Largest Proven Oil Reserves (and It's Not Saudi Arabia) Oil ends below $50 as US rig count continues to climb Oil dives below $50 as confidence in Opec wavers |