Diesel prices in
Montana.
The median diesel price in Montana is $5.00/gal, -$0.26 versus the national median, the 43rd most expensive of 49 states with data. Tracked across 71 truck stops, refreshed multiple times per day.
Data window: last 7 days · 174 observations in Montana
The spread
What the $0.14 spread means for a fleet.
Stations in Montana range from $4.96 at the cheap end to $5.10 at the expensive end. On a single 250-gallon tractor fill, the difference between a cheap-end station and a median-priced one is about $10, on one fill, for one truck, before any negotiated discount is applied.
That spread is exactly where fuel optimization earns its keep: ValveRide Flow routes every dispatch to the right stop for the route, applies your negotiated contract rates on top of the posted price, and accounts for state fuel-tax differences so the net cost, not the pump sign, drives the decision.
Running a lane through Montana?
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Cross-border math
Montana vs. neighboring states
Montana is currently the cheapest place to fuel among its neighbors. Fleets crossing into surrounding states generally benefit from topping off here first.
| State | Median | vs MT | Cheap (p10) | Stations |
|---|---|---|---|---|
| Montanathis page | $5.00 | - | $4.96 | 71 |
| North DakotaND | $5.00 | +$0.00 | $4.81 | 55 |
| South DakotaSD | $5.00 | +$0.00 | $4.70 | 65 |
| WyomingWY | $5.26 | +$0.26 | $4.99 | 73 |
| IdahoID | $5.50 | +$0.50 | $5.20 | 69 |
Questions, answered
Montana diesel prices, explained.
What is the average diesel price in Montana today?
The median diesel price in Montana is $5.00 per gallon across 71 tracked truck stops (last 7 days, 174 price observations). The cheapest 10% of stations are at or below $4.96/gal, and the most expensive 10% are at or above $5.10/gal.
Is diesel cheaper in Montana than the national average?
Montana runs -$0.26/gal versus the national median of $5.26, making it the 43rd most expensive of 49 states with data. Fleets routing through Montana generally benefit from fueling here rather than in pricier neighboring states.
How much can a fleet save on diesel in Montana?
The spread between the cheap end and expensive end in Montana is $0.14/gal right now. On a 250-gallon fill, choosing a cheap-end station over a median-priced one saves about $10, before contract discounts and IFTA tax positioning, which is what ValveRide Flow layers on automatically for fleets.
Methodology, percentile definitions, and the full 50-state table live on the national diesel prices page.
Your trucks run through Montana.
Flow makes every fill count.
Live prices, your negotiated contracts, and state fuel-tax math, applied automatically on every dispatch, with every claimed dollar reconciled against a real transaction.