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 $4.05 as of 8/11/2022 8:16:24 AM Diesel $5.05 as of 8/11/2022 7:58:42 AM Accepted Payments American Express Discover FAST STOP Cards Gift Card Mastercard Visa Voyager Wright Express