Wednesday, SEPTEMBER 17, 2025 |Average gasoline prices in Wyoming have fallen 2.3 cents per gallon in the last week. Prices at the pump averaged $3.07 per gallon on Monday, according to Gas Buddy’s survey of 494 stations in Wyoming. Statewide, prices in Wyoming are 4.2 cents per gallon higher than a month ago and stand 18.3 cents per gallon lower than a year ago, two months prior to the presidential election last November. The national average price of gasoline has fallen 3.6 cents per gallon in the last week, averaging $3.12 on Monday. The national average price of diesel has decreased 2.6 cents compared to a week ago and stands at $3.658 per gallon.