Okla. Stat. tit. 12, § 1147.2

When, under the circumstances stated in Section 1, the possible claim of persons not in being affect only an undivided interest in the full fee simple title to a tract of real estate, such undivided interest only may be sold under the provisions of this act, and the title to the other undivided interest therein shall not, in such case, be affected by said sale.