Boulder Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.08 | $4.38 | $4.63 | $4.69 | - |
| Month Ago Avg. | $4.08 | $4.38 | $4.63 | $4.69 | - |
Highest Recorded Average Gas Price In Boulder Year to Date
| Price | Date | |
|---|---|---|
| Regular | $4.13 | 06/26/25 |
| Diesel | $4.75 | 07/01/25 |
Top 10 Gas Stations & Cheap Fuel Prices in Boulder
Exxon in Boulder (703 N Main St)
703 N Main St, Boulder, Montana,
$3.49
Oct 24, 2025
0¢ Cashback
Exxon in Boulder (703 N Main St)
703 N Main StBoulderMontana59632USA
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.