# Montana gasoline price increases

> Live situation record from CLSTR: https://clstr.news/situations/montana-gasoline-price-increases
> Updated: 2026-08-17T13:42:09.000Z. Sources: 3. Developments: 2.

Gasoline prices in Montana have trended upward, rising from an average of $4.27 per gallon to $4.31 per gallon over a two-week period. This increase has shifted Montana’s ranking from the 12th highest state for gas prices in the U.S. to the 9th highest.

In Montana, prices have risen approximately 22.6 cents compared to the previous month and are over $1.00 higher than the previous year. Nationally, gasoline and diesel averages have also seen increases. Analysts attribute these rising costs to rebounding oil prices, the closure of the Strait of Hormuz, and Ukrainian attacks on Russian oil refineries.

## Timeline

### 2026-08-17: Montana gas prices rise to 9th highest in U.S

Montana gas prices rose to an average of $4.31 per gallon this week, ranking the state 9th highest in the U.S. as global oil market pressures impact fuel costs.

3 sources. https://clstr.news/cluster/montana-gas-prices-rise-to-9th-highest-in-us

### 2026-08-04: Montana Gas Prices Near Historic High

Montana gas prices fell slightly but stay $1 above last year at $4.27/gal; US average is $4.05, up nearly $1 YoY, driven by Middle East and Ukraine tensions.

2 sources. https://clstr.news/cluster/montana-gas-prices-near-historic-high

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Cite as: Montana gasoline price increases. CLSTR, https://clstr.news/situations/montana-gasoline-price-increases