NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned an 'AA' rating to the following obligations of the state of Oklahoma, Oklahoma Development Finance Authority (ODFA), Oklahoma State System of Higher Education: --$42.49 million master real property lease revenue bonds, tax-exempt series 2015B (subject to annual appropriation); --$75.305 million master real property lease revenue bonds, federally taxable series 2015C (subject to annual appropriation). The bonds are expected to sell via negoti