Okla. Stat. tit. 12 § 771
In all cases where two or more executions shall be put into the hands of any sheriff or other officer, and it shall be necessary to levy on real estate to satisfy the same, and either of the judgment creditors, in whose favor one or more of said executions are issued, shall require the sheriff or other officer to levy said executions, or so many thereof as may be required, on separate parcels of the real property of the judgment debtor or debtors, giving to the officer making the levy on behalf of the creditors, whose execution may, by the provisions of this article, be entitled to a preference, the choice of such part of the real property of the judgment debtor or debtors, as will be sufficient, at two-thirds (2/3) of the appraised value, to satisfy the same; and in all cases where two or more executions, which are entitled to no preference over each other, are put in the hands of the same officer, it shall be the duty of the officer, when required, to levy the same on separate parcels of the real property of the judgment debtor or debtors, when, in the opinion of the appraisers, the same may be divided without material injury; and if the real property of said debtors will not be sufficient, at two-thirds (2/3) of its appraised value, to satisfy all the executions chargeable thereon, such part of the same shall be levied on, to satisfy each execution, as will bear the same proportion in value to the whole, as the amount due to the execution bears to the amount of all the executions chargeable thereon, as near as may be according to the appraised value of each separate parcel of said real property.
Okla. Stat. tit. 12, § 771