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O'fallon Average Gas Price

RegularMid-GradePremiumDieselE85
Week Ago Avg. $3.47$3.77$4.08$3.92-
Month Ago Avg. $3.47$3.77$4.08$3.92-

Highest Recorded Average Gas Price In O'fallon Year to Date

PriceDate
Regular$3.4904/28/25
Diesel$3.9208/05/25

Top 10 Gas Stations & Cheap Fuel Prices in O'fallon

Phillips 66 in O'Fallon (7430 MO-N)

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7430 MO-N, O'Fallon, Missouri,

$3.09

Sep 04, 2025

0¢ Cashback

Phillips 66 in O'Fallon (7430 MO-N)
7430 MO-NO'FallonMissouri63366USA

Phillips 66 in O'Fallon (1322 N Main St)

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1322 N Main St, O'Fallon, Missouri,

$3.12

Sep 04, 2025

0¢ Cashback

Phillips 66 in O'Fallon (1322 N Main St)
1322 N Main StO'FallonMissouri63366USA

Phillips 66 in O'Fallon (1001 Tom Ginnever Ave)

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1001 Tom Ginnever Ave, O'Fallon, Missouri,

$3.14

Sep 04, 2025

0¢ Cashback

Phillips 66 in O'Fallon (1001 Tom Ginnever Ave)
1001 Tom Ginnever AveO'FallonMissouri63366USA

Zephyr Xpress in O'Fallon (1060 Bryan Rd)

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1060 Bryan Rd, O'Fallon, Missouri,

$3.17

Sep 04, 2025

0¢ Cashback

Zephyr Xpress in O'Fallon (1060 Bryan Rd)
1060 Bryan RdO'FallonMissouri63366USA

QuikTrip in O'Fallon (1150 Feise Rd)

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1150 Feise Rd, O'Fallon, Missouri,

$3.19

Sep 04, 2025

0¢ Cashback

QuikTrip in O'Fallon (1150 Feise Rd)
1150 Feise RdO'FallonMissouri63368USA

BP in O'Fallon (3995 Crusher Dr)

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3995 Crusher Dr, O'Fallon, Missouri,

$3.19

Sep 04, 2025

0¢ Cashback

BP in O'Fallon (3995 Crusher Dr)
3995 Crusher DrO'FallonMissouri63368USA

QuikTrip in O'Fallon (801 Belleau Creek Rd)

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801 Belleau Creek Rd, O'Fallon, Missouri,

$3.22

Sep 04, 2025

0¢ Cashback

QuikTrip in O'Fallon (801 Belleau Creek Rd)
801 Belleau Creek RdO'FallonMissouri63366USA

Phillips 66 in O'Fallon (102 McDonald Ln)

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102 McDonald Ln, O'Fallon, Missouri,

$3.24

Sep 04, 2025

0¢ Cashback

Phillips 66 in O'Fallon (102 McDonald Ln)
102 McDonald LnO'FallonMissouri63366USA

Phillips 66 in O'fallon (914 Bryan Rd)

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914 Bryan Rd, O'Fallon, Missouri,

$3.29

Sep 04, 2025

0¢ Cashback

Phillips 66 in O'fallon (914 Bryan Rd)
914 Bryan RdO'FallonMissouri63366USA

Mobil in O'Fallon (879 Bryan Rd)

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879 Bryan Rd, O'Fallon, Missouri,

$3.29

Sep 04, 2025

0¢ Cashback

Mobil in O'Fallon (879 Bryan Rd)
879 Bryan RdO'FallonMissouri63366USA

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.

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