The two courses at the Lodge in Pawhuska, OK are the top rated courses in Oklahoma, although I haven't had the opportunity to play them yet.
On the way to Pawhuska, in Tulsa, the best course is Blackhawk DGC. It is the third highest rated course in Oklahoma and is located in the same park as Redhawk DGC. Blackhawk is tight and technical (with ticks and bugs) and Redhawk is open. The Tulsa Zoo is also located in the same park if you have family along for the ride. McClure Park is also a great 18 hole course, set in a traditional style park with mature trees and a stream (no ticks) and is only a few miles from Blackhawk/Redhawk.
This would get you four of the top six rated courses in Oklahoma.