OKLAHOMA CITY -- Ponca City has been assigned to the Owasso Class 6A Regional according to information announced Friday by the Oklahoma Secondary School Activities Association. Also in the Owasso Regional are Owasso, Putnam City West and Bartlesville. The Lady Cats are scheduled to play Bartlesville at noon on Tuesday. Owasso and Putnam West open the play with a 10 a.m. game on Tuesday. It is a…