Oswego Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $4.44 | $5.08 | $5.44 | $5.04 | $3.24 |
| Month Ago Avg. | $4.42 | $5.06 | $5.42 | $5.05 | $3.24 |
Highest Recorded Average Gas Price In Oswego Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $5.06 | 06/15/26 |
| Regular | $4.46 | 07/12/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Oswego
Casey's in Oswego (6551 US-34)
6551 US-34, Oswego, Illinois,
$4.42
Jul 19, 2026
0¢ Cashback
Meijer in Oswego (2720 US-34)
2720 US-34, Oswego, Illinois,
$4.49
Jul 19, 2026
0¢ Cashback
Delta Sonic Car Wash in Oswego (1924 Route 34)
1924 Route 34, Oswego, Illinois,
$4.49
Jul 19, 2026
0¢ Cashback
Speedway in Oswego (4032 US-34)
4032 US-34, Oswego, Illinois,
$4.52
Jul 19, 2026
0¢ Cashback
Murphy USA in Oswego (2350 Walter Payton Memorial Hwy)
2350 Walter Payton Memorial Hwy, Oswego, Illinois,
$4.52
Jul 19, 2026
0¢ Cashback
Speedway in Oswego (1830 US 30)
1830 Lincoln Hwy, Oswego, Illinois,
$4.52
Jul 19, 2026
0¢ Cashback
7-Eleven in Oswego (244 E Washington St)
244 E Washington St, Oswego, Illinois,
$4.55
Jul 19, 2026
0¢ Cashback
Shell + Circle K in OSWEGO (1190 US HWY 34)
1190 US-34, Oswego, Illinois,
$4.55
Jul 19, 2026
3¢ Cashback
Shell in Oswego (55 Chicago Rd)
55 Chicago Rd, Oswego, Illinois,
$4.62
Jul 19, 2026
3¢ Cashback
BP in Oswego (2791 US HIGHWAY 34)
2791 US-34, Oswego, Illinois,
$4.69
Jul 19, 2026
0¢ Cashback
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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.