Oklahoma's just not a hockey state. Sure there are a few fans out there but the average Okie couldn't even tell you how many teams are in the NHL.
The NFL on the other hand would work here. If only there were an NFL stadium here. The talking heads out there would doubt that we could support the NFL but this is a die-hard football state and there are only 16 regular season games once a week and only half of them are 'home' games. The average NFL stadium is something like 55-65k as well. OU has had no problem selling out its games for the last 50 years or so with a larger stadium capacity.