Heavy Canadian Oil Gains to Smallest Discount Since January

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Western Canada Select, a heavy Canadian oil, surged to the smallest discount versus West Texas Intermediate in three months as refiners returned from seasonal maintenance, boosting demand.

Valero Energy Corp. restarted a crude unit at its Memphis, Tennessee, refinery after maintenance, Bill Day, a company spokesman in San Antonio, said today in an e-mail. CVR Energy Inc. completed planned work at the Coffeyville refinery in Kansas and the plant is operating at 115,000 barrels a day, Steve Eames, a company spokesman, said in an e-mail March 26.