Home › Top 6 Gas Stations in Fairfield, Illinois Find best Gas Stations in Fairfield, Illinois, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Conoco - Fairfield (IL 62837) US, Fairfield, IL 62837201 W Main St Hucks - Fairfield (IL 62837) US, Fairfield, IL 62837101 W Main St Phillips 66 - Fairfield (IL 62837) US, Fairfield, IL 62837800 W Main St Mach 1 - Fairfield (IL 62837) US, Fairfield, IL 62837800 W Main St Murphy USA - Fairfield (IL 62837) US, Fairfield, IL 628371000 Commerce Drive CITGO - Fairfield (IL 62837) US, Fairfield, IL 62837308 W Delaware St