Oak Crest Es
Oak Grove Public School
Oak Hall Episcopal School
Oak Park Es
Oakdale Public School
Oakridge Es
Oaks-mission Es
Oaks-mission HS
Obuch MS
Oilton HS
Okarche Es
Okarche HS
Okarche Jhs
Okay Es
Okay HS
Okc Montessori
Okeene Es
Okeene Jr-sr HS (jr)
Okeene Jr-sr HS (sr)
Okemah Es