Okla. Stat. tit. 6, § 6-1305
Lease to minor
A lessor may lease a safe deposit box to or accept property for
safekeeping from a minor, and, in connection therewith, deal with
him to the same effect as if dealing with a person of full legal
capacity, unless and until his guardian files with the lessor a
certified copy of the order of a district court appointing him and
directs otherwise.