Check Montana gas prices today for regular, mid-grade, premium, and diesel fuel. The price tool below shows AAA-sourced daily averages, recent price movement, and a fill-up cost estimate for drivers across the Treasure State.
What Affects Montana Gas Prices?
- Vast rural delivery distances across the eastern plains and western mountainous regions
- Heavy agricultural, mining, and commercial freight demand along the I-90 and I-15 corridors
- Supply logistics from Pacific Northwest and Rocky Mountain refineries via regional pipelines
- Extreme winter cold requiring specialized winter fuel blends and anti-gel diesel additives
- Seasonal tourism and RV travel heading to Glacier and Yellowstone National Parks
- Montana’s state motor fuel tax and local distribution fees
Montana Gas Prices by Fuel Type
- Regular: The standard baseline fuel for most daily commuters and passenger vehicles.
- Mid-grade: Recommended for older high-compression engines or vehicles towing campers through steep mountain passes.
- Premium: Necessary for luxury, turbocharged, or high-performance vehicles to prevent engine knocking at high elevations.
- Diesel: Tracks closely with commercial freight, agricultural transport, and heavy-duty trucking across the state.
Montana Gas Prices vs Nearby States
Regional borders in the Mountain West and Northern Plains create noticeable price shifts. When planning cross-state trips, keep these comparisons in mind:
- Idaho gas prices and Wyoming gas prices often differ due to varying state taxes, mountain transport costs, and local supply chain dynamics.
- North Dakota gas prices and South Dakota gas prices fluctuate based on their respective regional pipeline access, oil production dynamics, and rural demand.
- Prices can be higher or lower depending on daily supply routes from West Coast or Utah refineries and local municipal fees.
Tips for Getting Better Gas Prices in Montana
- Compare station prices in Billings or Missoula before heading onto remote stretches of I-90 or US-93.
- Fill up your tank before driving through sparse, rural areas in eastern Montana or near the Canadian border.
- Check your tire pressure regularly, especially before tackling steep Rocky Mountain passes or during extreme winter cold.
- Stick to regular unleaded unless your vehicle’s manufacturer explicitly requires premium.
- Plan your diesel stops carefully in winter; ensure stations offer winterized diesel to prevent fuel gelling.
- Avoid unnecessary idling to warm up your car; modern engines only need 30 seconds before driving in the cold.
Montana Gas Price FAQs
What is the average gas price in Montana today?
The current daily averages for regular, mid-grade, premium, and diesel are displayed in the dynamic tool at the top of this page.
Why do Billings and Missoula gas prices differ?
Billings benefits from close proximity to local refineries and regional pipeline terminals, while Missoula faces higher transport costs over mountain passes and relies on Pacific Northwest supply networks.
Why can rural areas in eastern Montana cost more at the pump?
Stations in remote plains towns face less local competition and higher overhead costs for fuel delivery over long distances from major interstate distribution hubs.
Is diesel included in Montana gas price data?
Yes, the tool tracks Montana diesel prices alongside unleaded options, which is essential for commercial truckers, agricultural transport, and RV travelers navigating the state’s freight corridors.
Does Montana use special gasoline blends?
Montana generally uses standard federal EPA fuel blends, though specific winter-grade formulations and anti-gel diesel additives are strictly required during extreme cold snaps to prevent fuel line freezing and gelling.