The average price for a gallon of regular unleaded gas sold in Massachusetts this week is $2.74, unchanged from a week ago, according to AAA Northeast. This week’s average is 2 cents lower than a month ago ($2.76), but 77 cents higher than a year ago ($1.97). Massachusetts’ average gas price is 13 cents lower than the national average. “Refinery utilization is nearly back to pre-pandemic levels, and with gasoline supplies increasing in the last month amid lower crude oil prices, motorists have benefited from mostly flat gas prices,” said Mary Maguire, AAA Northeast's director of public and government affairs. “However, crude started to see some upward movement this week, which could translate to small increases at the pump by the end of April.”