The average price of regular-grade gasoline has surged 12 cents nationally over the past three weeks, to $2.38 a gallon.
Industry analyst Trilby Lundberg said Sunday the hike mostly results from the gasoline market catching up with rising crude oil costs.
Continue Reading Below
Lundberg says the current price is 33 cents a gallon above what it was one year ago.
Gas in San Francisco was the highest in the continental United States at $2.78 a gallon on average Friday. The low average was in Denver, at $2 a gallon.
The U.S. average diesel price is $2.56, up 8 cents from three weeks ago.