Okla. Stat. tit. 21, § 1640

Any director of any moneyed corporation who willfully does any act, as such director, which is expressly forbidden by law, or willfully omits to perform any duty expressly imposed upon him as such director, by law, the punishment for which act or omission is not otherwise prescribed by this article, or by some of the acts which it specifies as continuing in force, is guilty of a misdemeanor.