[The series and its rules are explained here, where you will also find links to the songs for the other states.]
36:3. The Girl Who Danced Oklahoma: 'Outside Oklahoma, OK LA'. (1.)
36:9. Leroy's Dustbowl Blues: 'Would have lived in Oklahoma all his days'. (1.)
36:15. Texas Moon: 'I met a bunch of fools in Oklahoma'. (1.)
36:17. Southern Comfort: 'Ah-um Oh Virginia Ah-um Oklahoma'. (1.)
36:21. Travelin' Mood: 'Oklahoma, Mississippi border'. (1.)
36:22. Someone Believed: 'She lives on a farm in southern Oklahoma'. (1).