Store Locator Mason City FAST STOP152 W. ChestnutMason City, IL 62664 Contact Phone: 217-482-9620 Get Directions Amenities Convenience Store ATM Food Fuel Types Gasoline Diesel Fuel Prices Regular $3.29 as of 7/22/2025 5:38:53 PM Diesel $3.79 as of 7/22/2025 5:38:53 PM Accepted Payments American Express Discover FAST STOP Cards Gift Card Mastercard Visa Voyager Wright Express