The average U.S. price of regular-grade gasoline has dropped two cents a gallon over the past two weeks, to $2.91.
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Industry analyst Trilby Lundberg of the Lundberg Survey says that's more than 50 cents a gallon higher than at this time last year.
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Lundberg said Sunday it is likely that gas prices will continue to drop slightly. She says that's because refiners have increased capacity and current demand is weak.
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In California, the average price was $3.61 per gallon, down a penny from two weeks earlier.
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The highest average price in the contiguous 48 states and Hawaii is $3.69 in the San Francisco Bay area.
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The lowest average is $2.51 in Jackson, Mississippi.
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