Diesel prices in
Montana.
The median diesel price in Montana is $6.00/gal, -$0.20 versus the national median, the 40th most expensive of 48 states with data. Tracked across 58 truck stops, refreshed multiple times per day.
Data window: last 7 days · 205 observations in Montana
The spread
What the $0.15 spread means for a fleet.
Stations in Montana range from $5.95 at the cheap end to $6.10 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 $12, 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 | $6.00 | - | $5.95 | 58 |
| North DakotaND | $6.10 | +$0.10 | $5.80 | 52 |
| South DakotaSD | $6.10 | +$0.10 | $5.65 | 59 |
| WyomingWY | $6.50 | +$0.50 | $6.10 | 66 |
| IdahoID | $6.60 | +$0.60 | $6.20 | 64 |
Questions, answered
Montana diesel prices, explained.
What is the average diesel price in Montana today?
The median diesel price in Montana is $6.00 per gallon across 58 tracked truck stops (last 7 days, 205 price observations). The cheapest 10% of stations are at or below $5.95/gal, and the most expensive 10% are at or above $6.10/gal.
Is diesel cheaper in Montana than the national average?
Montana runs -$0.20/gal versus the national median of $6.20, making it the 40th most expensive of 48 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 $0.15/gal right now. On a 250-gallon fill, choosing a cheap-end station over a median-priced one saves about $12, before contract discounts and IFTA tax positioning, which is what ValveRide Flow layers on automatically for fleets.
Methodology, percentile definitions, and the full 48-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.