580-255-3550
703 S 9th St
Duncan, OK 73533
Endurance Federal Credit Union is headquartered in Duncan and is the 19th largest credit union in the state of Oklahoma. It is also the 1,322nd largest credit union in the nation. It was established in 1960 and as of March of 2025, it had grown to 32 employees and 13,586 members at 3 locations. Endurance Federal Credit Union has an A health rating.
Field of Membership Restrictions
Membership in Endurance Federal Credit Union is open to individuals who live, work, worship, attend school, or have a business in any of the following counties/towns: 1) Oklahoma counties – Beckham, Cotton, Harmon, Jackson, Jefferson, Kiowa, Roger Mills, Stephens, or Tillman; 2) Oklahoma towns – Cache, Clinton, Hydro, Indiahoma, Rush Springs, or Weatherford; 3) Texas counties – Armstrong, Baylor, Borden, Briscoe, Childress, Cochran, Collingsworth, Cottle, Crosby, Dawson, Dickens, Fischer, Floyd, Foard, Garza, Hall, Hardeman, Kent, King, Knox, Lamb, Lynn, Motley, Stonewall, Swisher, Terry, Throckmorton, or Wilbarger; 4) Texas towns – Amarillo, Denver City, Dimmitt, Friona, Haskell, Lubbock, Snyder, or Samford. Employees of Halliburton Company and more than 60 other Select Employee Groups also qualify for membership.
See current membership details
