The national price gained 6.3 cents to $2.991 in the latest week, the biggest jump in four months.
The national average price rose 4.4 cents to $3.122 in the latest week, the 10th increase in the past 11 weeks.
The price rose 0.4 cent to $3.078 in the latest week.
All regions except New England reported sharply higher prices.
The price, which has climbed 15.3 cents since Dec. 21, is 56.5 cents higher than the same week last year.
The national average retail price of a gallon of diesel soared 6.5 cents this week.
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