Whenever any lands shall be sold for delinquent taxes under the provisions of this article, upon which any mortgage or other lien exists in favor of the State of Oklahoma, or the Commissioners of the Land Office or any other commission, board or officer having power to loan public funds, or any funds under the control of the state upon real estate security, such tax shall be secondary at all times to the lien of the state, or of the Commissioners of the Land Office, or of such commission, board or officer.
Okla. Stat. tit. 68, § 3142