Okla. Stat. tit. 58, § 58-413: Order for hearing on the petition

If it appears to the court or judge, from such petition, that it

is necessary to sell the whole or some portion of such real estate

for the purposes and reasons mentioned in this title, such petition

must be filed and an order thereupon made, directing all persons

interested in the estate to appear before the court, at a time and

place specified, not less than ten (10) days nor more than four (4)

weeks from the time of making such order, to show cause why an order

should not be made authorizing the executor or administrator to sell

so much of the real estate of the decedent as is necessary.