Tesoro (NYSE: TSO) has now confirmed three fatalities after a fire occurred at the company’s Anacortes, Washington, refinery at approximately 12:30 a.m. (PT) today. Four other employees have been admitted to the hospital in Seattle for treatment.

“This is a very sad time for our organization. Everyone in the Tesoro family appreciates the impact that this will have on the families involved, and we are responding quickly to ensure the safety for our employees, contractors and the neighboring community,” said Bruce Smith, Tesoro’s Chairman, President and CEO.

The fire occurred at the naphtha unit while performing maintenance work and was contained at around 2 a.m. local time. At this time there have been no reports of off-site impacts related to the incident.

The Sheriff’s Department has been notified and personnel are on site responding. The Washington Department of Labor and Industries and the local air district have been notified of the event.

Tesoro’s Emergency Incident Command has been activated to respond to this incident and the units affected have been shut down and stabilized.

Tesoro Corporation, a Fortune 150 company, is an independent refiner and marketer of petroleum products. Tesoro, through its subsidiaries, operates seven refineries in the western United States with a combined capacity of approximately 665,000 barrels per day. Tesoro's retail-marketing system includes over 880 branded retail stations, of which over 380 are company operated under the Tesoro®, Shell®, Mirastar® and USA Gasoline™ brands.

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