Well, look here what changed! I can carry my Bowie too:
TULSA, Oklahoma -
One of the many new laws that went into effect this month in Oklahoma is a change to a knife law that was originally put on the books in 1921.
SB 1159 became effective November 1, 2016, which removes dagger, bowie knife, dirk knife and sword cane from the items prohibited from carry in Oklahoma, according to the law.
It also repealed the ban on carrying switchblade (automatic) knives
I think Texas still forbids big knives and such as sword canes.