Endurance Federal Credit Union (Endurance FCU) was chartered August 12, 1960 as Duncan Industrial Services Credit Union, servicing Halliburton and other oilfield and industrial employees in Duncan. We changed our name to Halliburton Employees’ Credit Union in 1969 and by the late 1980’s all Halliburton employees throughout Oklahoma were eligible to join. Endurance FCU is a full-service financial institution offering its members the best in service and a full range of financial products. When you become a member of Endurance FCU you actually become one of the owners. We are governed by a volunteer board of directors and redistribute income to members through higher savings rates and lower loan rates.