Okla. Stat. tit. 12, § 12-841
Property, equitable interests subject to execution
At any time after judgment, any property of the judgment debtor,
including any equitable interest he may have, unless by law
expressly excluded from being reached by creditors shall be subject
to the payment of such judgment, by action, or as hereinafter
provided.
R.L. 1910, § 5189. Amended by Laws 1965, c. 300, § 1.