Okla. Stat. tit. 44 § 228
The board of county commissioners of any county in the state is hereby authorized to convey title by deed, or lease for a term of years, any lands and buildings belonging to or under the control of the county which are not needed for county purposes, to the Adjutant General acting as trustee for the Oklahoma National Guard. The Adjutant General shall not accept any such deed or lease unless the approval of the Governor of the acceptance be endorsed thereon attested by the Secretary of State. It shall not be necessary that the Adjutant General pay any consideration for such deed of conveyance or lease. After such deed or lease has been delivered and accepted the Adjutant General shall be authorized to expend funds appropriated to the Military Department of the state for the maintenance, repair, and improvement of the lands and buildings, conveyed or leased. Every such deed or lease shall contain a reversionary clause to the effect that if the State of Oklahoma or the Military Department thereof abandons such lands or buildings they shall revert to the county. All such lands so conveyed or leased to the Adjutant General shall be under his supervision as to control and management. Provided, however, that the provisions of this act shall not in any wise apply to any real estate or property acquired by the county commissioners at resale.
Okla. Stat. tit. 44, § 228