Okla. Stat. tit. 21 § 1301
It shall be unlawful for any person in this state to wear a mask, hood or covering, which conceals the identity of the wearer during the commission of a crime or for the purpose of coercion, intimidation or harassment; provided, the provisions of Section 1301 et seq. of this title shall not apply to the pranks of children on Halloween, to those going to, or from, or participating in masquerade parties, to those participating in any public parade or exhibition of an educational, religious or historical character, to those participating in any meeting of any organization within any building or enclosure wholly within and under the control of said organization, and to those participating in the parades or exhibitions of minstrel troupes, circuses or other amusements or dramatic shows. Any person, or persons, violating the provisions of this section, shall be deemed guilty of a misdemeanor, and upon conviction thereof, shall be punished by a fine of not less than Fifty Dollars ($50.00) nor more than Five Hundred Dollars ($500.00), or by imprisonment in the county jail for a period of not exceeding one (1) year, or by both such fine and imprisonment.
Okla. Stat. tit. 21, § 1301