By the Associated Press

CAMARILLO, Calif. (AP) — The average U.S. price of regular-grade gasoline spiked 39 cents over the past three weeks to $5.10 per gallon.

Industry analyst Trilby Lundberg of the Lundberg Survey said Sunday that the price jump comes amid higher crude oil costs and tight gasoline supplies.

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The average price at the pump is $1.97 higher than it was one year ago.

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Nationwide, the highest average price for regular-grade gas is in the San Francisco Bay Area, at $6.55 per gallon. The lowest average is in Baton Rouge, Louisiana, at $4.43 per gallon.

According to the survey, the average price of diesel rose 20 cents over three weeks, to $5.86 a gallon.

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