Plains Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $3.87 | $4.1 | $4.38 | $4.39 | - |
| Month Ago Avg. | $3.87 | $4.1 | $4.38 | $4.39 | - |
Highest Recorded Average Gas Price In Plains Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.39 | 07/29/25 |
| Regular | $3.87 | 07/28/25 |
Top 10 Gas Stations & Cheap Fuel Prices in Plains
Conoco in Plains (325 E Railroad St)
Railroad Ave, Plains, Montana,
$3.58
Sep 05, 2025
0¢ Cashback
Conoco in Plains (325 E Railroad St)
Railroad AvePlainsMontana59859USA
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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.