Okla. Stat. tit. 34 § 23
Every person who is a qualified elector of the State of Oklahoma may sign a petition for the referendum or for the initiative for any measure upon which he is legally entitled to vote. Any person signing any name other than his own to any petition, or knowingly signing his name more than once for the same measure at one election, or who is not at the time of signing the same a legal voter of this state, or whoever falsely makes or willfully destroys a petition or any part thereof, or who signs or files any certificate or petition knowing the same or any part thereof to be falsely made, or suppresses any certificate or petition or any part thereof which has been duly filed or who shall violate any provision of this statute, or who shall aid or abet any other person in doing any of said acts; and any person violating any provision of this chapter, shall upon conviction thereof be guilty of a felony and shall be punished by a fine of not exceeding Five Hundred Dollars ($500.00) or by imprisonment in the State Penitentiary not exceeding two (2) years, or by both such fine and imprisonment in the discretion of the court before which such conviction shall be had.
Okla. Stat. tit. 34, § 23