Home › Top 4 Gas Stations in O'Fallon, Illinois Find best Gas Stations in O'Fallon, Illinois, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Phillips 66 - O'Fallon (IL 62269) US, O'Fallon, IL 62269826 W Hwy 50 Circle K - O'Fallon (IL 62269) US, O'Fallon, IL 62269826 W Hwy 50 Shell - O'Fallon (IL 62269) US, O'Fallon, IL 622691011 W Hwy 50 Sam’s Club Gas Station - O'Fallon (IL 62269) US, O'Fallon, IL 622691350 W Hwy 50
