HOUSTON -- U.S. gasoline prices have skidded 22% from their highs and may fall further as the economy slows and as refinery operations disrupted by hurricanes return to normal.

A gallon of regular gasoline cost on average $3.206 a gallon on Monday, according to AAA's Fuel Gauge Report. Since hitting a peak of $4.114 on July 17, prices in many places have slid below $3 a gallon.

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