Mass. gas prices rise for 12th week

Gasoline prices in Massachusetts rose an average of 10 cents per gallon over the past week, partly because US reserves are 3.5 percent below expected levels heading into the Memorial Day holiday.

A statewide survey today by AAA of Southern New England found an average price of $2.86 per gallon for self-service regular unleaded, compared with $2.76 a week earlier.

Gas prices are up 71 cents per gallon from early February, a 12-week string of increases.

A year ago, the average price was $2.89.
(AP)