Okla. Stat. tit. 16, § 68

The doctrine of constructive possession is abolished only insofar as it applies to the Simplification of Land Titles Act, Section 61 et seq. of Title 16 of the Oklahoma Statutes. Any claims based upon constructive possession before the effective date of this act shall be extinguished unless a notice of the claim is filed with the county clerk of the county where the land or interest is located within one (1) year from the effective date of this act. The notice of the claim shall set forth basis thereof and specifically refer to this section.