The damaged unit, the only one of its kind at the refinery, supplies most of the feedstock that other production units require later in the refining process. Chevron on Wednesday was shuttling materials that had already been distilled to the other production units at the refinery, and also continued to refine feedstock it had previously bought.
"We continue to operate, we continue to supply product," Higgs said.
But Higgs declined to provide specifics on current production levels, or to say how long it would take to repair the damage from the fire.
Average gasoline prices jumped 6 cents in the East Bay and the South Bay, and 5 cents in San Francisco by evening Wednesday over what they had been late Tuesday, according to a survey by the GasBuddy online site.
"Five or 6 cents a gallon, you might see that sort of increase in a week, but to have that in one day, that shows how significant the refinery fire is," DeHaan said. "Five or 6 cents in a day, that's a lot."
The average price of gasoline was $3.93 a gallon in the South Bay, $3.91 in the East Bay and $3.99 in San Francisco on Wednesday, GasBuddy reported.
"There is definitely a price spike going on," said Gregg Laskoski, a senior petroleum analyst with GasBuddy. "There is no question the fire at the Richmond refinery is the catalyst for this."
Chevron's Richmond refinery can handle 244,000 barrels of oil a day. In addition to producing 20 to 25 percent of the gasoline used in Northern California, it also supplies about 50 percent of the jet fuel used at the major airports in the region.
"They are probably running at half capacity at the Richmond refinery," van der Valk said. "They can bring in blended stocks from other parts of the world, such as from the huge Chevron refinery in India. That could take two months to get here. Chevron will just try to hobble along for a while at the refinery."
Other challenges have surfaced that have contributed to the gasoline price problems on the West Coast. For one thing, refinery inventories are low because refinery operators don't want to be caught with a oversupply of summer fuel ahead of the annual switch to winter fuel blends Oct. 1. And the Valero refinery in Benicia has suffered some hiccups lately.
"There are big problems in California right now," Laskoski said.
Commentary: It's often not too surprising how gas prices suddenly spike upward whenever a refinery has a malfunction that occurs.
It's even more interesting that Chevron hasn't become better prepared for these type of situations through the years.
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