S&P Global Ratings raised its ratings on Oak Grove, Mo.'s outstanding general obligation (GO) bonds to 'AA-' from 'A+' and the city's certificates of participation (COPs) to 'A+' from 'A', and removed the rating from under criteria observation. The upgrade reflects the application of our "Methodology For Rating U.S. Governments," published Sept. 9, 2024, on RatingsDirect. The outlook is stable. Oak Grove's GO debt is secured by an unlimited-tax GO pledge, while its COPs are secured by lease rental payments from legally available funds, subject to annual appropriation. The COPs are one notch below the GO rating to reflect risk of nonappropriation. The one-notch upgrade reflects the application of our new rating criteria. The 'AA-' rating is also supported by