Bloomberg News

Tesoro Said to Return Los Angeles Plant Hydrotreater to Service

May 14, 2012

Tesoro Corp. (TSO:US) started a hydrotreater at its Los Angeles refinery after maintenance, according to a person familiar with plant operations.

The hydrotreater began a return to service this weekend, said the person, who declined to be identified because the information isn’t public.

Tina Barbee, a spokeswoman at the refinery, didn’t immediately return an e-mail requesting comment.

A hydrotreater removes sulfur, metal and other impurities from refined oil products, allowing them to burn more cleanly as fuels.

To contact the reporter on this story: Paul Burkhardt in New York at

To contact the editor responsible for this story: Dan Stets at

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