Marathon Gas Prices in Great Falls, MT

Updated April 5, 2026 — Prices updated regularly from EIA data

$3.20

Marathon Regular Unleaded — Est. price in Great Falls

About Marathon Fuel

Marathon Petroleum is one of America's largest petroleum refiners, operating Marathon branded stations primarily across the Midwest, Southeast, and East Coast. Marathon's direct refining-to-retail model means their stations benefit from efficient supply chains. Marathon fuel meets all TOP TIER detergent gasoline standards and is particularly well-distributed in Ohio, Michigan, Indiana, and Kentucky.

Marathon Loyalty Program

Marathon MakeItCount rewards program earns points on fuel and in-store purchases. Members can redeem points for cents-per-gallon fuel discounts and store merchandise.

Brand Price Comparison in Great Falls

BrandEst. Pricevs. Marathon
Costco$3.03$-0.17
Speedway$3.15$-0.05
Circle K$3.16$-0.04
Sunoco$3.19$-0.01
Marathon THIS PAGE$3.20
BP$3.22+$0.02
Mobil$3.23+$0.03
Exxon$3.24+$0.04
Shell$3.26+$0.06
Chevron$3.28+$0.08

Marathon Prices in Nearby Cities

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Frequently Asked Questions

Marathon premium is worth the cost only if your vehicle requires premium-grade fuel. Marathon's premium meets the same 91-93 octane standard as competing brands. The decision should be driven by your vehicle's requirements.
Marathon MakeItCount rewards program earns points on fuel and in-store purchases. Members can redeem points for cents-per-gallon fuel discounts and store merchandise. Co-branded credit cards from major fuel brands typically offer 3-5% back on gas purchases at that brand's stations.
TOP TIER certification means a fuel brand's additives exceed EPA minimum detergency standards. This designation is recognized by major automakers including GM, Ford, BMW, and Toyota as beneficial for long-term engine health.
Marathon Petroleum is one of America's largest petroleum refiners, operating Marathon branded stations primarily across the Midwest, Southeast, and East Coast. Marathon's direct refining-to-retail model means their stations benefit from efficient supply chains. Marathon fuel meets all TOP TIER detergent gasoline standards and is particularly well-distributed in Ohio, Michigan, Indiana, and Kentucky. The key differentiator for Marathon fuel is its proprietary additive package, specifically formulated to clean fuel injectors, intake valves, and combustion chambers.

Related Gas Price Pages

All Gas Prices in Great FallsCheapest Gas in Great FallsGas Prices in MontanaShell in Great FallsExxon in Great FallsBP in Great FallsChevron in Great FallsMobil in Great FallsCostco in Great FallsRegular Unleaded at MarathonPremium Gasoline at MarathonDiesel Fuel at Marathon