Okla. Stat. tit. 21, § 838

Every person who, by use of force, threats or intimidation, prevents or endeavors to prevent another from employing any person, or to compel another to employ any person, or to force or induce another to alter his or her mode of carrying on business, to interrupt or disrupt the carrying on of business or to limit or increase the number of his hired foremen, journeymen, apprentices, workmen, laborers, servants or other persons employed by him, or their rate of wages or time of service, is guilty of a misdemeanor.