BOSTON (AP)-- The cost of a gallon of gas in Massachusetts has dipped another 4 cents in the past week.
AAA Southern New England reports Monday that self-serve regular is down to an average of $3.30 per gallon, 13 cents lower than a month ago and 35 cents lower than at the same time last year.
The Massachusetts average is still a nickel higher than the national per-gallon average.
AAA found self-serve regular selling as low as $3.12 per gallon in Massachusetts and as high as $3.49.
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