Someone correct me if I'm wrong, but I don't think they've played in Houston since 1993. But they haven't played in Nashville since 1995 and they've got a date there, so there's always hope! They play Dallas every tour. I'm sure there are more tour dates coming and there will be at least one show in Texas. But I also know that given the size of the state, that might not be too promising for you.

I wish they considered geography more when they made tour plans.
Becky