Okla. Stat. tit. 18, § 18-438.26: Recording instruments - Lien

Any mortgage, deed of trust or other instrument executed by a

cooperative or foreign corporation doing business in this state

pursuant to this act, which affects real and personal property and

which is recorded in the real property records in any county in

which such property is located or is to be located, shall have the

same force and effect as if the mortgage, deed of trust or other

instrument were also recorded, filed or indexed as provided by law

in the proper office in such county as a mortgage of personal

property. The lien upon real or personal property of any such

mortgage, deed of trust or other instrument shall, after recordation

thereof, continue in existence and of record for the period of time

specified therein without the refiling thereof of the filing or any

renewal certificate, affidavit, or other supplemental information

required by the laws relating to the renewal, maintenance or

extension of liens upon real or personal property.