Okla. Stat. tit. 58, § 58-63: Petition and notices when another will offered

If another will be offered by the petition, it must show all

that is required in the original case of a petition for the probate

of a will, and notice must be given as required before the hearing

of proof of any will originally: Provided, that such notice need not

be given to any persons upon whom the citation required in the

preceding section is to be served.