Okla. Stat. tit. 58, § 58-632: Rights fixed by decree

In the order or decree, the court must name the persons and the

proportions or parts to which each shall be entitled, and such

persons may demand, sue for and recover their respective shares from

the executor or administrator, or any person having the same in

possession. Such order or decree is conclusive as to the rights of

heirs, legatees or devisees, subject only to be reversed, set aside,

or modified on appeal.