St Clair Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.15 | $4.43 | $4.73 | $5.03 | - |
| Month Ago Avg. | $3.46 | $3.54 | $3.98 | $4.03 | - |
Highest Recorded Average Gas Price In St Clair Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.03 | 06/15/26 |
| Regular | $4.15 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in St Clair
Phillips 66 in St Clair (230 W Gravois Ave)
230 W Gravois Ave, St Clair, Missouri,
$4.09
Jul 07, 2026
0¢ Cashback
Phillips 66 in St Clair (230 W Gravois Ave)
230 W Gravois AveSt ClairMissouri63077USA
Phillips 66 in St Clair (8299 MO-47)
8299 MO-47, St Clair, Missouri,
$4.29
Jul 07, 2026
0¢ Cashback
Phillips 66 in St Clair (8299 MO-47)
8299 MO-47St ClairMissouri63077USA
Mobil in St Clair (1445 N Main)
1445 N Main, St Clair, Missouri,
$4.29
Jul 07, 2026
0¢ Cashback
Mobil in St Clair (1445 N Main)
1445 N MainSt ClairMissouri63077USA
BP in St Clair (1213 Gravois)
1213 Gravois, St Clair, Missouri,
$4.39
Jul 07, 2026
0¢ Cashback
BP in St Clair (1213 Gravois)
1213 GravoisSt ClairMissouri63077USA
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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.