Okla. Stat. tit. 69, § 3019

No trustee or employee of any public trust shall have a direct or indirect financial interest in any contract, subcontract, purchase, sale or other transaction in connection with any toll expressway project undertaken by such trust. Violation of this section shall be deemed cause for removal from office or employment of such trustee or employee. In addition, such violation shall constitute a misdemeanor and upon conviction thereof, shall be punishable by a fine not exceeding One Thousand Dollars ($1,000.00) or imprisonment not exceeding one (1) year, or both such fine and imprisonment.