Gas Prices Increase By 12.2 Cents During Week
Average gasoline prices in Montana have risen 12.2 cents per gallon in the last week, averaging $4.46/g on Monday, May 11, according to GasBuddy’s survey of 615 stations in Montana. Prices in Montana are 60.5 cents per gallon higher than a month ago and stand $1.30/g higher than a year ago. The national average price of diesel has increased 0.2 cents compared to a week ago and stands at $5.623 per gallon.
According to GasBuddy price reports, the cheapest station in Montana was priced at $4.09/g on Sunday, May 10, while the most expensive was $4.99/g, a difference of 90.0 cents per gallon.
The national average price of gasoline has risen 5.1 cents per gallon in the last week, averaging $4.48/g today. The national average is up 37.3 cents per gallon from a month ago and stands $1.40/g higher than a year ago, according to GasBuddy.
Historical gasoline prices in Montana and the national average going back five years: May 11, 2025: $3.16/g (U.S. Average: $3.08/g) May 11, 2024: $3.49/g (U.S. Average: $3.61/g) May 11, 2023: $3.47/g (U.S. Average: $3.52/g) May 11, 2022: $4.26/g (U.S. Average: $4.41/g) May 11, 2021: $2.87/g (U.S. Average: $3.00/g)
