UPDATE 1-Tesoro says shuts Golden Eagle hydrocracker

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HOUSTON, July 27 (Reuters) - Tesoro Corp (TSO.N) shut a hydrocracker at its 166,000-barrel-per-day (bpd) Golden Eagle refinery in Martinez, California, for three weeks of unplanned repairs on July 21, a company spokesman said on Monday.

"The hydrocracker was shut down completely on July 21 for unscheduled maintenance," said Tesoro spokesman Lynn Westfall. "Repairs are expected to take around three weeks."

The 35,000-bpd hydrocracker sustained a valve breakdown in February and was scheduled to undergo 39 days of work in the second quarter of this year. (Reporting by Erwin Seba; Editing by Christian Wiessner)