Brazos River Sportsman's Club in Fulshear/Simonton. Call the owner, Leigh John to reserve a spot. I'm one of the RSOs there.
https://www.facebook.com/pages/Brazos-River-Sportsmans-Club/1556314281267438
Website is a little outdated:
http://brazosriversportsmansclub.com/
Many thanks for the input. Looks like an excellent facility, but a bit far for SA folks to drive for 4 separate classes. Might take a drive out there myself one day. Did you get your RSO cert through NRA, CMP, or some other? I have run ranges before while in the army, but that was many years ago so I am looking to certify prior to starting my classes.