SAN FRANCISCO (AP) — A fire at one of the nation's largest oil refineries helped push West Coast gas prices close to $4 a gallon Thursday, as the same federal team that investigated the Gulf Coast spill waited to inspect the unit that was knocked out by the blaze.
The U.S. Chemical Safety Board team was standing by with state and company inspectors to do structural and environmental tests to see if it was safe to enter the unit and determine when production might resume after the Monday night blaze.
In all, five separate investigations will be done.
"This is an important accident in its own right, it was a large fire and has the potential to affect fuel supplies and prices," said Dr. Daniel Horowitz, a member of the chemical board.
The average price of regular gasoline jumped in California from $3.86 a gallon on Tuesday to $3.94 on Thursday, according to the website GasBuddy.com.
Some experts expect the disruption in production to last for weeks and push prices beyond $4 a gallon.
"It'll depend on Chevron getting their facility repaired," said Patrick DeHaan of GasBuddy.com. "The increases will be felt in California, Oregon and Washington, with perhaps some residual issues in Arizona and other nearby states."
The Richmond refinery produces 16 percent of the region's daily gasoline supply. The fire knocked out a unit that makes a specialized blend of cleaner burning gasoline that satisfies air quality laws in California, Oregon and Washington.
Sean Comey, a spokesman for Chevron, said myriad factors were pushing gas prices higher, not just the loss of one unit at the refinery.
"There are a variety of economic conditions like rising crude and ethanol costs, which also affect what consumers pay at the pump," he said.
Comey said the refinery continues to produce gasoline, diesel and jet fuel but in reduced amounts.
Experts said inventories of the cleaner burning gas already were low. With the refinery's output in question for what could be weeks, analysts say prices could reach $4 a gallon as soon as Friday.
"California has the cleanest burning gas in the nation, so this is definitely a market disruption," said Rayola Dougher, a senior economic adviser with the American Petroleum Institute.
California can't replace those supplies with imports from Washington state, Asia and the Gulf Coast, so it's more difficult to ease the impact of the lost production, Dougher said.
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