Epic sued the Education Department and the Oklahoma City Public Schools, seeking the district code, and Parrish ruled in favor of the charter school. UCO was not named in that lawsuit, but Parrish's ruling on the university's sponsorship status came during a court hearing in that case.
UCO had maintained it had withdrawn its request to sponsor Epic before a regents meeting in July.
The Education Department has appealed Parrish's ruling concerning the district code, but that appeal was filed before state Superintendent Janet Barresi took office on Jan. 10. Barresi is an advocate of charter schools but hasn't comment on the Epic case.