Yes they do have Government funded rural mass transit. They call it AMTRAC. (And look how well that’s working.) s/
It works real well — takes forever to go from Norman to Fort Worth and then you need transportation when you get there. It would be even worse coming from Fort Worth to Norman unless you want to visit the Court House or Jail where the Railroad Station is located. It takes an hour longer then if I drive and cost more money. I will keep driving my SUV to Texas and skip The Heartland Flyer.
Only good time to take the Heartland Flyer is for OU/TX and they make special arrangements in Fort Worth for that trip along with specials on the train.