Wyoming’s average gas prices up nearly 19 cents a gallon in past week

CHEYENNE (WNE) — Average gasoline prices in Wyoming have risen 18.7 cents per gallon in the last week, averaging $4 per gallon Monday, according to GasBuddy.com’s survey of 494 stations in Wyoming.

Prices in Wyoming are 5.9 cents per gallon lower than a month ago, and stand 92.1 cents per gallon higher than a year ago. The national average price of diesel has decreased 22.3 cents compared to a week ago, and stands at $5.077 per gallon.

According to GasBuddy price reports, the lowest price in the state Sunday was $3.59 per gallon, while the highest was $5.99, a difference of $2.40 per gallon.

The national average price of gasoline has risen 13 cents per gallon in the last week, averaging $3.95 per gallon Monday. The national average is up 6.5 cents per gallon from a month ago, and stands 85.7 cents per gallon higher than a year ago, according to GasBuddy data compiled from more than 11 million weekly price reports covering over 150,000 gas stations across the country.

“Average gasoline and diesel prices rose in nearly every state for the second straight week, with the national average price of gasoline likely to reach $4 per gallon within the next 48 hours and diesel already back above $5 per gallon nationally,” said Patrick De Haan, head of petroleum analysis at GasBuddy. “While the ongoing U.S.-Iran situation continues to weigh on markets, the story is increasingly less about crude oil and more about global refining capacity. The Strait of Hormuz remains closed while continued Ukrainian attacks on Russian refineries further squeeze an already strained supply picture. With WTI crude approaching $85 per barrel in Sunday night trading, price-cycling markets are likely to see another jolt higher in the coming days, and motorists should brace for a rougher stretch ahead.”

This story was published on July 22, 2026. 

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