Okla. Stat. tit. 58 § 259
When there is a deficiency of assets in the hands of the executor or administrator, and when the decedent, in his lifetime, has conveyed any real estate, or any rights or interests therein, with intent to defraud his creditors, or to avoid any right, debt or duty of any person, or has so conveyed such estate that by law the deeds or conveyances are void as against creditors, the executor or administrator must commence and prosecute to final judgment any proper action for the recovery of the same, and may recover for the benefit of the creditors all such real estate so fraudulently conveyed; and he may also, for the benefit of the creditors, sue and recover all goods, chattels, rights or credits which have been so conveyed by the decedent in his lifetime, whatever may have been the manner of such fraudulent conveyance.
Okla. Stat. tit. 58, § 259