I know we have a few in Tulsa, and one around Shawnee (though they don't seem to have made it to these boards yet), and... me. I don't live in OKC proper, but it's closer to me than Tulsa and Dallas are. :)
There are NO hooping groups or (apparently) any other hoopers in OKC, but I figured I'd throw out one good public place for hooping in that city, and it's over at the Myriad Gardens. It's the site of the annual OKC Arts Festival, and you can see the website for the indoor conservatory gardens here (the following is a map of the outdoor grounds):
I'm in Tulsa and I'm having trouble finding an established hoop group here. I've contacted the Hub and River Rat bikes and just waiting to hear back from them. Does anyone have any additional leads I could follow up on?
For OKC area folks, these ladies offer hoop classes on Saturdays. NOTE: I have NOT taken classes with them, but I'm putting this here in case others are interested. The class description reads like it's definitely a beginners class. They also sell hoops.
(And yes, as the name of the URL suggests, they offer pole dancing, burlesque, and other types of classes too. Like I said, I don't know much about them, but they are the only folks in OKC offering any type of hoop classes, so it could be a good way to meet fellow hoopers!)
P.S. I haven't found anything yet for Tulsa- area hoopers, but I'll keep an eye out!