Updated April 5, 2026 — Prices updated regularly from EIA data
$3.20
Regular Unleaded (87 octane) per gallon
About Regular Unleaded in Billings
Regular 87-octane gasoline costs $$3.20 in Billings, Montana as of {month} {year}. With thousands of stations competing for the regular fuel customer, this grade sees the sharpest price competition of any tier.
When to Use Regular Unleaded
Best for: everyday driving
Vehicle types: most cars and trucks
Fuel Price Comparison in Billings
Fuel Type
Price
vs. Regular Unleaded
Octane
Regular Unleaded THIS PAGE
$3.20
—
87
Premium Gasoline
$4.00
+$0.80
91-93
Diesel Fuel
$4.33
+$1.13
N/A
Regular Unleaded in Nearby Cities
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Use GasBuddy and filter by fuel type to see current Regular Unleaded prices at stations near your location in Billings. Warehouse clubs and high-volume discount stations typically offer the best Regular Unleaded prices.
All Regular Unleaded sold in Billings must meet minimum federal standards. TOP TIER certified stations add extra detergency additives. Most major brands (Shell, Chevron, Costco, Wawa) are TOP TIER certified. Non-certified independents meet legal minimums only.
In Billings, Regular Unleaded is priced at $$3.20 per gallon versus ${regularPrice} for regular — a ${diff} per gallon premium. On a 15-gallon fill-up, that's ${fillDiff} extra. Over 50 annual fill-ups, the premium adds ${annualDiff} to your fuel costs.
If your car requires premium and you accidentally fill with regular, modern engines have knock sensors that retard timing to prevent damage. You may notice reduced performance and slightly worse fuel economy. Fill with premium on your next fill-up. This is a minor issue if it happens occasionally.
