Pedernales Electric Cooperative was created in 1938.
HILCO Electric Cooperative was created in 1936.
Vermont Electric Cooperative was created in 1938.
Choptank Electric Cooperative was created in 1938.
Bartlett Electric Cooperative was created in 1935.
Pedernales Province was created in 1957.
Old Dominion Electric Cooperative was created in 1948.
Southern Maryland Electric Cooperative was created in 1937.
Cooke County Electric Cooperative was created in 1938.
Jemez Mountains Electric Cooperative was created in 1948.
Fox Islands Electric Cooperative was created in 1974.
Brazos Electric Power Cooperative was created in 1941.
Deaf Smith Electric Cooperative was created in 1936.