Okla. Stat. tit. 58, § 58-424: Relationship of sale price to appraisement - Exception of

sale under authority of will.

No sale of real estate at private sale shall be confirmed by the

court unless the sum offered is at least ninety percent (90%) of the

appraised value thereof, nor unless such real estate has been

appraised within one (1) year of the time of such sale. If it has

not been so appraised, or if the court is satisfied that the

appraisement is too high or too low, appraisers must be appointed,

and they must make an appraisement thereof in the same manner as in

case of an original appraisement of an estate. This may be done at

any time before the sale or the confirmation thereof. Provided,

that this section shall not apply to property sold under authority

or direction of a will.