Here's OK with 7 seats.
I'd say its 6-1 R. Democrats could at least be competitive in the 7th.
A TX Democratic gerrymander with 45 seats is also on the way.
I don't know much about Oklahoma politics but if you ignore the '08 presidential numbers I would say that almost any of those districts could be won by a legitimate Blue Dog. Granted, the Blue Dogs are dying out pretty rapidly but most of them typically can win in districts where the typical D-R split is less than ten points in favor of the Republicans.