Oklahoma constitution
Article VII-b: selection of justices and judges
Section 2

The question shall be decided by a majority of those voting thereon. If the decision is "yes" the Judicial Officer shall be retained in office for the next ensuing six (6) year term. If the decision is "no," or if no declaration of candidacy is filed, the office shall be vacant upon expiration of the term then being served, and the former Judicial Officer shall not be eligible for appointment to succeed himself. Retention in office may be sought for successive terms without limit as to number, except for retirement as may be provided by the Legislature for a maximum retirement age.