Union Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $2.75 | $3.41 | $3.79 | $3.38 | - |
| Month Ago Avg. | $2.75 | $3.41 | $3.79 | $3.37 | - |
Highest Recorded Average Gas Price In Union Year to Date
| Price | Date | |
|---|---|---|
| Regular | $2.79 | 07/08/25 |
| Diesel | $3.47 | 04/03/25 |
Top 10 Gas Stations & Cheap Fuel Prices in Union
Murphy USA in Union (309 Buffalo-West Springs Hwy)
309 Buffalo-West Springs Hwy, Union, South Carolina,
$3.16
Nov 14, 2025
0¢ Cashback
Murphy USA in Union (309 Buffalo-West Springs Hwy)
309 Buffalo-West Springs HwyUnionSouth Carolina29379USA
Marathon in Union (908 S Duncan Bypass )
908 S Duncan Bypass , Union, South Carolina,
$3.22
Nov 14, 2025
0¢ Cashback
Marathon in Union (908 S Duncan Bypass )
908 S Duncan Bypass UnionSouth Carolina29379USA
Circle K in Union (1315 Lockhart Hwy)
1315 Lockhart Hwy, Union, South Carolina,
$3.39
Nov 14, 2025
0¢ Cashback
Circle K in Union (1315 Lockhart Hwy)
1315 Lockhart HwyUnionSouth Carolina29379USA
Exxon in Union (101 N Duncan Bypass)
101 N Duncan Bypass, Union, South Carolina,
$3.49
Nov 14, 2025
0¢ Cashback
Exxon in Union (101 N Duncan Bypass)
101 N Duncan BypassUnionSouth Carolina29379USA
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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.