Okla. Stat. tit. 58, § 58-385b: Petition - Contents - Time for filing - Limitations

To obtain an order for mortgaging such real estate for the

purpose and under the provisions hereof, the administrator or

executor must present a verified petition to the district court, or

to the judge thereof, setting forth a description of the property,

real and personal, on hand and undisposed of, the legally

established debts outstanding and unpaid, the legally ordered family

allowance due and unpaid, if any, the amount of the charges and

expenses of administration, the names and addresses of the heirs,

devisees and legatees of the decedent, and the specific reason why

it will be to the best interest of said estate to mortgage, rather

than to sell, such real estate or a part thereof. Such petition to

mortgage shall not be filed and the authority therefor shall not be

given or order therefor made, until after the time within which to

present claims has expired. Such authority shall not be given or

order made therefor, and no mortgage on any real estate shall be

made, given, executed or delivered under the provisions hereof, for

an amount in excess of two-thirds (2/3) of the appraised value

thereof, as established by an appraisal made by three disinterested

citizens of the county within one (1) year of the time of making

such order to mortgage.