The Oklahoma State University System is a university system comprising six educational institutes across Oklahoma: four general academic universities and two health institutions. Its flagship institute is the Oklahoma State University–Stillwater. The Oklahoma State University System has a total enrollment of about 35,073 students and is the largest university in the state of Oklahoma. It is governed by the Oklahoma Agricultural and Mechanical Colleges Board of Regents in Oklahoma City, Oklahoma. The System also has Agricultural Experiment Stations throughout Oklahoma and Cooperative Extension offices that serve all 77 counties. V. Burns Hargis currently serves as CEO of the Oklahoma State University System, in addition to his service as president of OSU-Stillwater.