High Quality Content by WIKIPEDIA articles! Oklahoma State University–Tulsa, located in Tulsa, Oklahoma, USA, is the newest institution of the Oklahoma State University System. It was previously the University Center at Tulsa until it became OSU-Tulsa on January 1, 1999. OSU-Tulsa is unique in the fact that it is not recognized as its own entity, but rather an extension of the main Oklahoma State University campus in Stillwater, Oklahoma. OSU-Tulsa works in conjunction with the main OSU campus and Tulsa Community College to provide Freshman and Sophomore level courses, enabling students to complete a four-year undergraduate course of study.