Okla. Stat. tit. 84, § 84-25: Place of filing disclaimer - Delivery of copies - Interest

in real estate.

Such disclaimer shall be effective upon being filed in the

district court in which the estate of the person by whom the

interest was created or from whom it would have been received is, or

has been, administered or, if no probate administration has been

commenced, then in the district court of any county provided in

Oklahoma Statutes as the place for probate administration of the

estate of such person. A copy of the disclaimer shall be delivered

or mailed to the representative, trustee or other person having

legal title to, or possession of, the property in which the interest

disclaimed exists, and no such representative, trustee or person

shall be liable for any otherwise proper distribution or other

disposition made without actual notice of the disclaimer. If an

interest in or relating to real estate is disclaimed the original of

the disclaimer, or a copy of the disclaimer certified as true and

complete by the clerk of the district court wherein the same has

been filed, shall be filed in the office of the county clerk in the

county or counties where the real estate is situated and shall

constitute notice to all persons only from and after the time of

such filing.