Okla. Stat. tit. 19, § 262

Copies of any and all petitions, or orders or decrees of any United States court, in bankruptcy proceedings, duly certified as correct by the clerk of such court or his deputy, may be filed and recorded in the office of any county clerk of this state. Said county clerk shall accept the same for filing when certified by the clerks of said courts as true copies of said instruments and file and record the same in his office and also shall cause the same to be indexed.