S&P Global Ratings raised its long-term rating on the Oklahoma Development Finance Authority's series 2018B tax-exempt fixed-rate bonds and series 2018C taxable fixed-rate bonds to 'BB' from 'BB-'. The bonds were issued for OU Medicine Inc. (OUMI), now doing business as OU Health. In addition, we also raised our underlying rating (SPUR) on the insured maturities of the authority's series 2018B and 2018C bonds, also issued for OUMI, to 'BB' from 'BB-'. The outlook on all ratings is stable. The upgrade reflects OU Health's healthy operating profitability with further growth in cash flow expected over the outlook period. This has supported incremental improvement in year-end unrestricted reserves and we anticipate that trend will continue, aided by increased Medicaid reimbursement under