Hello, I'm interested to learn about the history of this brand, where they operated, etc. Thank you, John Koster

welcome aboard - here is a little history on co-op .. ...

https://www.megacoop.com/member-information/co-op-history/

https://www.agpluscoop.com/history/

https://fcoc-cenex.com/farmers-co-op-celebrates-90-years/

Some good pictures of items used by CO-OP shown here when it was featured on COTM
https://www.oldgas.com/forum/ubbthreads.php?ubb=showflat&Number=378875