Oklahoma School Report Cards 2017-2019:
The Oklahoma State Department of Education's multi-aspect report card system for each public school in the state of Oklahoma.
https://www.oklaschools.com/
2013-2016 A-F School Report Cards:
The State Department of Education release of A-F grades for each public school in Oklahoma. Here is the link to the OSDE website containing the A-F reports:
sde.ok.gov/sde/af-grades