Security Finance Corp Address: 1412 N Main St, Guymon, OK 73942 Phone: (580) 338-7711 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Financing, Loans, Tax Return Preparation & Filing Other Businesses: Equity Exchange Elev Grain Elev at Doolin Elevator, Guymon, OK 73942 Yes Finance at 1421 N Main St, Guymon, OK 73942