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The average U.S. price of regular-grade gasoline has spiked 7 cents a gallon over the past two weeks, costing $2.97, while Los Angeles holds the highest average rate in the contiguous 48 states.

Industry analyst Trilby Lundberg of the Lundberg Survey says that’s 41 cents a gallon higher than at this time last year.

Lundberg said Sunday that rising crude oil prices are the main reason for the increase at the pump.

The highest average price in the contiguous 48 states is $3.82 a gallon in Los Angeles. The lowest average is $2.58 in Houston.

The average price of diesel also rose 7 cents over the past two weeks, to $3.28.