CNBC | Russia could take steps to help OPEC avoid 'incredibly high oil prices,' sovereign wealth fund chief says CNBC Russia has "benefited tremendously" from its co-operation with OPEC over recent months, the head of Russia's investment fund said Wednesday, but rising oil prices are quickly becoming a concern. International benchmark Brent crude and U.S. West Texas ... Exclusive: Saudi Arabia, Russia agreed in Sept to lift oil output, told US Oil Rally Pauses After API Reports Small Build In Crude Inventories Saudi Arabia says oil output has reached record levels |