Okla. Stat. tit. 6, § 6-1301.1: Appointment of deputy

A lessee on a safe deposit box may appoint a deputy, with or

without the consent of or notice to any other joint lessees on the

box. A deputy shall have the power to enter the box, remove

contents therefrom or add contents, and the appointment of the

deputy shall not be affected by the subsequent incapacity or

incompetency of the lessee, nor the lapse of time. Revocation of

the appointment of a deputy must be made in writing to the lessor.

The authority of the deputy shall cease upon the appointing lessee's

death. However, if the lessor, without knowledge of the death of

the lessee, deals with the deputy of the lessee, the transaction

binds the lessee's estate and the lessee.