Anadarko Agency: Apache Tribe of Oklahoma Caddo Nation of Oklahoma Comanche Nation Delaware Nation Fort Sill Apache Tribe of Oklahoma Kiowa Indian Tribe of Oklahoma Wichita and Affiliated Tribes
Concho Agency: Cheyenne-Arapaho Tribes of Oklahoma
Horton Agency: Iowa Tribe of Kansas & Nebraska Kickapoo Tribe in Kansas Prairie Band of Potawatomi Nation Sac and Fox Nation of Missouri
Pawnee Agency: Otoe-Missouri Tribe Pawnee Nation of Oklahoma Tonkawa Tribe of Oklahoma
Southern Plains Regional Office: Absentee-Shawnee Tribe of Oklahoma Alabama Coushatta Tribe of Texas Citizen Potawatomi Nation Iowa Tribe of Oklahoma Kaw Nation Kickapoo Tribe of Oklahoma Kickapoo Traditional Tribe of Texas Ponca Tribe of Oklahoma Sac & Fox Nation