Okla. Stat. tit. 58, § 58-420: Petition for sale by third person

If the executor or administrator neglects to apply for any order

of sale when it is necessary, any person may make application

therefor in the same manner as the executor or administrator, and

notice thereof must be given to the executor or administrator before

the hearing. The petition of such applicant must contain as many of

the matters required for the petition of the executor or

administrator as he can ascertain, and the decree of sale must fix

the period of time within which the executor or administrator must

make the sale.