Okla. Stat. tit. 66, § 66-15: Execution of conveyance or lease

Every conveyance or lease, deed of trust, mortgage or

satisfaction thereof, made by any railroad corporation, of any

franchises, real estate fixtures, or other real property, in

pursuance of law, shall be executed and acknowledged in the manner

in which conveyances of real estate by corporations are required to

be, to entitle the same to be recorded, and shall be recorded in the

office of the Secretary of State, who shall endorse thereon his

certificate thereof, specifying the day and hour of its reception,

and the volume and page where recorded, which shall be evidence of

such facts. Every such record of any such instrument shall, from

the time of reception, have the same effect as to any property in

this state described therein, as the record of any similar

instrument in the office of a register of deeds may have by law as

to property in his county, and shall be notice of the rights and

interests of the grantee, lessee, or mortgagee, by such instrument

to the same extent as if it were recorded in each and all of the

several counties in which any property therein described may be

situated.