San Francisco Diesel Weakens After Tesoro Finishes Maintenance

California-blend diesel on the spot market in San Francisco weakened versus futures as Tesoro Corp. (TSO) completed maintenance at the Golden Eagle refinery.

The refinery operated normally today after unscheduled maintenance last week, Tina Barbee, a San Antonio-based spokeswoman, said by e-mail. Tesoro shut a unit July 15 at the 170,000-barrel-a-day refinery in Northern California, according to a filing with Contra Costa County Health Services.

Royal Dutch Shell Plc (RDSA)’s Martinez plant in Northern California returned to normal July 19 after a unit shut July 14.

CARB diesel in San Francisco weakened by 2.38 cents to a discount of 1.38 cents a gallon below ultra-low-sulfur diesel futures on the New York Mercantile Exchange at 3:54 p.m., according to data compiled by Bloomberg.

The fuel in Los Angeles weakened by 2.75 cents to a discount of 1.5 cents a gallon to futures. Low-sulfur diesel in Portland, Oregon, strengthened by 0.5 cent to a discount of 2 cents a gallon.

California-blend diesel fuel supplies increased by 0.7 percent to 2.39 million barrels in the week ended July 12, according to the state Energy Commission.

Conventional, 84-octane gasoline in Portland slid by 9.5 cents to a discount of 5.5 cents a gallon below Nymex futures.

Shell’s 147,500-barrel-a-day Puget Sound refinery in Washington was operating as planned today, Destin Singleton, a Houston-based spokeswoman, said. The refinery shut fuel gas equipment on July 16, according to filings with the Northwest Clean Air Agency.

California-blend gasoline in San Francisco strengthened by 1 cent to a discount of 16.5 cents a barrel below futures. The fuel in Los Angeles weakened by 1.5 cents to a 10.5-cent-a-gallon discount.

To contact the reporter on this story: Dan Murtaugh in Houston at dmurtaugh@bloomberg.net

To contact the editor responsible for this story: Bill Banker at bbanker@bloomberg.net

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