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The price rise at the pump slowed in the past two weeks.
The average U.S. price of regular-grade gasoline inched up less than penny to $2.25 per gallon, accoridng to the latest Lundberg Survey.
That’s 56 cents below the average pump price from a year ago.
Industry analyst Trilby Lundberg said Sunday it's the smallest rise in prices seen since late April.
She said crude oil prices have remained stable and there's an abundant supply of U.S. gasoline to meet the demand.
The highest average price for regular-grade gas is in the West.
The price in the San Francisco Bay Area is $3.27 per gallon.
The lowest average is in the south where Baton Rouge, Louisiana is selling gas at $1.79 per gallon.
The average price of diesel held steady at $2.54 a gallon.
The Associated Press contributed to this article.