Okla. Stat. tit. 18, § 18-439.2
Filing articles of conversion with Secretary of State -
Issuance of certificate of conversion.
Articles of conversion, when executed and acknowledged and
accompanied by such affidavits as may be required by applicable
provisions of this act, shall be presented to the Secretary of State
for filing in the records of his office. If the Secretary of State
shall find that the articles conform to the requirements of this
act, he shall, upon the payment of the fees specified by him file
the articles so presented in the records of his office and shall
issue over the Great Seal of the State an appropriate certificate of
conversion, and thereupon the conversion provided for therein shall
be in effect.