Here are the two main Tulsa clubs:
Tulsa Repeater Organization
http://www.tulsahamradio.org/
Tulsa Amateur Radio Club
http://w5ias.com/
There should be links on one or both of these websites to the other clubs which may have repeaters.
Also, here is the Oklahoma Repeater Society, Inc. website:
http://www.shortyland.com/orsi
There is an online datebase in Excel format of all the coordinated repeaters in Oklahoma. It may not be 100%, but we are working on weeding out the "paper" repeaters and are relisting the previously unlisted machines, however, the data on those may not be complete. PL tones, in particular, may not be listed.
Mark S.