Crude oil markets weaken as U.S. opens taps
Oil headed for its biggest weekly loss in more than 10 years
Read MoreOil headed for its biggest weekly loss in more than 10 years
Read MoreIt won’t be easy because Canada lacks the infrastructure to ship oil or gas to Europe directly
Read MoreSaudi Arabia is in active talks with China to price some of its oil in yuan
Read MorePushing Russia out of the global energy equation virtually impossible at this stage
Read MoreBuyers shying away from Russian crude are scrambling
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