Store Locator Underwood FAST STOP Express (AGRILAND FS)701 Railroad Highway Underwood, IA 51576 Contact Phone: 712-566-2313 Website: https://www.agrilandfs.com Get Directions Amenities 24 Hour Pumps Credit Card Only Fuel Types Gasoline Diesel E-85 E-15 Fuel Prices Regular $3.46 as of 6/21/2026 8:02:10 AM Diesel $4.30 as of 6/21/2026 8:02:10 AM E85 $2.55 as of 6/21/2026 8:02:10 AM Accepted Payments American Express Discover FAST STOP Cards Gift Card Mastercard Visa Voyager Wright Express