...S&P Global Ratings affirmed its '##+' long-term ratings on the Oklahoma Development Finance Authority's approximately $826 million series 2018B tax-exempt fixed-rate bonds and approximately $201 million series 2018C taxable fixed-rate bonds, issued for OU Medicine Inc. (OUMI). In addition, S&P Global Ratings affirmed its '##+' underlying ratings (SPURs) on the $85 million insured series 2018B tax-exempt fixed-rate bonds and $50 million insured series 2018C taxable fixed-rate bonds, also issued for OUMI. Effective Feb. 1, 2018, OUMI fully owns and operates OU Medical Center (OUMC), a 341-staffed bed academic medical center (AMC) in Oklahoma City, along with OUMC-Edmond (located about 15 miles north of OUMC with 66 staffed beds). OUMI also leases and operates the 312-staffed-bed Children's Hospital at OUMC, as well as owns and operates clinics, imaging, and other health-related services across the service area. OUMC and The Children's Hospital are on the same campus as the University of Oklahoma...