Okla. Stat. tit. 12 § 1142
Current through Laws 2024, c. 453.
In actions for the recovery of real property, it shall be necessary for the plaintiff to set forth in detail the facts relied upon to establish his claim, and to attach to his petition copies of all deeds or other evidences of title, as in actions upon written contracts; and he must establish the allegations of his petition, whether answer be filed or not.
Okla. Stat. tit. 12, § 1142