Okla. Stat. tit. 62 § 261
When any cashier's check or other exchange has been issued by any state or national bank in the State of Oklahoma, made payable to the State of Oklahoma or any agency thereof, and such cashier's check or other exchange has not been presented for payment and paid by the bank of issue within three (3) years from the date of issuance, claim of the state thereto is hereby asserted and the bank of issuance is hereby made the agent of the state, and pursuant to such agency, the state or national bank issuing the same or the successor thereof shall pay the amount of any such cashier's check or other exchange to the State Treasurer under the provisions of the Uniform Unclaimed Property Act using the same reports as required to report other forms of property.
In addition to examination by the Office of the State Treasurer pursuant to the provisions of Section 678 of Title 60 of the Oklahoma Statutes, all such banks shall permit the State Auditor and Inspector or a duly authorized deputy access to their records to ascertain whether any such cashier's check or exchange has been issued and remains outstanding and unpaid.
To the extent discernable, the State Treasurer shall notify the state agency named in the remittance forms returned by the bank of the amount and of any other identifying data contained as to each item named; and upon presentation by such agency to the State Treasurer of claim duly authenticated and proof of right thereto the State Treasurer shall draw a voucher or order for the amount thereof found proper, to be paid to such agency.
Okla. Stat. tit. 62, § 261