Public Radio 89.5 is the flagship National Public Radio station in Tulsa, Oklahoma. The station was [Oklahoma's first FM radio station and is one of two stations operated by the University of Tulsa. The station was established in 1947 through the initiative of TU speech professor Ben Graf Henneke, later president of the university. The call letters are the initials of Tulsa oilman and philanthropist William G. Skelly, who provided the funding.