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Gas Prices Unchanged During Last Week


Average gasoline prices in Montana are unchanged in the last week, averaging $4.28/g on Monday, May 16, according to GasBuddy’s survey of 615 stations in Montana. Prices in Montana are 24.6 cents per gallon higher than a month ago and stand $1.39/g higher than a year ago. The price of diesel has risen 3.0 cents nationally in the past week and stands at $5.55 per gallon.

According to GasBuddy price reports, the cheapest station in Montana was priced at $3.99/g on Sunday, May 15, while the most expensive was $4.84/g, a difference of 85.0 cents per gallon.

The national average price of gasoline is unchanged in the last week, averaging $4.46/g on Monday. The national average is up 39.1 cents per gallon from a month ago and stands $1.43/g 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.

Historical gasoline prices in Montana and the national average going back 10 years: May 16, 2021: $2.88/g (U.S. Average: $3.03/g) May 16, 2020: $1.72/g (U.S. Average: $1.87/g) May 16, 2019: $2.88/g (U.S. Average: $2.86/g) May 16, 2018: $2.83/g (U.S. Average: $2.90/g) May 16, 2017: $2.37/g (U.S. Average: $2.33/g) May 16, 2016: $2.18/g (U.S. Average: $2.22/g) May 16, 2015: $2.47/g (U.S. Average: $2.70/g) May 16, 2014: $3.38/g (U.S. Average: $3.65/g) May 16, 2013: $3.47/g (U.S. Average: $3.60/g) May 16, 2012: $3.75/g (U.S. Average: $3.73/g) Neighboring areas and their current gas prices: Idaho- $4.49/g, unchanged from last week’s $4.49/g.

Billings- $4.19/g, unchanged from last week’s $4.19/g.

Wyoming- $4.20/g, unchanged from last week’s $4.20/g.

“Those filling their tanks last week saw another jolt at the pump, as both gasoline and diesel prices continued their multi-week rally,” said Patrick De Haan, head of petroleum analysis at Gas-Buddy. “New records continued to be set on a near daily basis as the national average edges even closer to $4.50 per gallon. Prices later this week could be closer to $5 per gallon than $4, as demand continues to edge higher and inventories of both gasoline and diesel continue to decline, temperatures warm and motorists get back outside and we near the Memorial Day weekend, the start of the summer driving season. While the increases may start to slow in the days ahead as pump prices catch up to oil, there isn’t much reason to be optimistic that we’ll see a plunge any time soon.”

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