Okla. Stat. tit. 21, § 1320.2

It shall be unlawful and shall constitute incitement to riot, a Class B4 felony offense, for a person or persons, intending to cause, aid, or abet the institution or maintenance of a riot, to do an act or engage in conduct that urges other persons to commit acts of unlawful force or violence, or the unlawful burning or destroying of property, or the unlawful interference with a police officer, peace officer, fireman or a member of the Oklahoma National Guard or any unit of the armed services officially assigned to riot duty in the lawful performance of his duty.