Okla. Stat. tit. 11, § 11-11-103: Qualifications of governing body members

The governing body members shall be residents and registered

voters of the city. The councilmembers from wards shall be actual

residents of their respective wards at the time of their candidacy

and election; but removal of a councilmember from one ward to

another within the city after his election, or a change in ward

boundaries, shall not disqualify him from completing the term for

which he was elected.