All but one of the institutions in the Regional University System of Oklahoma will increase tuition this fall under fiscal 2019 budgets approved by regents. The budgets approved last week include increases in tuition and mandatory fees from 3.1 percent to 5.5 percent for five universities. The budgets and tuition rates for all the state’s 25 public colleges and universities will be presented today to the Oklahoma State Regents for Higher Education for approval.