Union Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $3.74 | $3.28 | $3.78 | $4.79 | - |
| Month Ago Avg. | $3.74 | $3.28 | $3.78 | $4.79 | - |
Highest Recorded Average Gas Price In Union Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.79 | 03/22/26 |
| Regular | $3.74 | 03/14/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Union
Union Mini Mart in Union (110 S Main St)
110 S Main St, Union, Ohio,
$3.28
Mar 31, 2026
0¢ Cashback
Union Mini Mart in Union (110 S Main St)
110 S Main StUnionOhio45322USA
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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.