Okla. Stat. tit. 19, § 548

Appointments and revocations to be written - Public list maintained - Exception. A. Every appointment of an undersheriff or a deputy sheriff, and every revocation of such appointments, shall be in writing, under the hand of the sheriff. The sheriff shall maintain a list of every appointment and revocation of an undersheriff or deputy sheriff. The list shall be made available to the public upon request. B. This section shall not extend to any person who may be deputized by any sheriff or undersheriff to do any particular act only.