The court shall cause copies of said order to be mailed to the persons entitled to notice of the proceeding at least ten (10) days before the hearing on the petition. If the mailing address of any such person is unknown, a copy of the order must be published one time in some newspaper in the county of the court having jurisdiction over the case, and the hearing of said petition shall not be less than ten (10) days from the date of the first publication of such notice. If written consent to making the order of sale is given by all persons entitled to notice, except the ward if the ward has been adjudicated to be fully incapacitated, said order of sale may be made at once without giving the notice.
Okla. Stat. tit. 30, § 4-756