As of March 18, gasoline prices in Montana have risen 3.9 cents per gallon in the past week, averaging $2.39 a gallon according to GasBuddy.com. Prices were 14.7 cents per gallon higher than a month ago and are 17.0 cents per gallon lower than a year ago.
The national average has increased 4.3 cents per gallon during the last week and stands 0.3 cents per gallon lower than a year ago.