San Francisco Gasoline Weakens as Shell Plant Returns to Normal

San Francisco gasoline weakened to the lowest level since in almost four weeks after Royal Dutch Shell Plc reported that its Martinez refinery was operating normally after maintenance.

California-blend, or Carbob, gasoline in San Francisco weakened by 1.5 cents to a premium of 4 cents a gallon over futures on the New York Mercantile Exchange, according to data compiled by Bloomberg. It’s the smallest premium since Aug. 29.

The 165,000-barrel-a-day Shell refinery in Northern California started maintenance on Sept. 11 to “optimize operations,” Houston-based spokeswoman Destin Singleton said at the time. The refinery is now operating normally, Singleton said today.

Carbob in Los Angeles strengthened by 1.25 cents to a premium of 13.25 cents a gallon. Conventional, 84-octane gasoline in Portland, Oregon, weakened by 2 cents to a premium of 8 cents a gallon.

California-blend diesel in San Francisco weakened by 0.25 cent to a discount of 2.5 cents a gallon to ultra-low-sulfur diesel futures on the Nymex. The fuel in Los Angeles weakened by 0.5 cent to a premium of 0.25 cent. Low-sulfur diesel in Portland weakened by 2.25 cents to a discount of 4.5 cents.

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