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Tesoro Utah Plant Operations Normal After Power Loss

Tesoro Corp.’s Salt Lake City refinery, the biggest oil-processing plant in Utah, returned to normal operations after a complete power loss.

The 58,000-barrel-a-day plant suffered the outage at about 3 p.m. local time yesterday as a result of “difficulties experienced from cable-installation activities,” said Mike Marcy, a San Antonio-based spokesman for the company.