Okla. Stat. tit. 21, § 318

It shall be unlawful and deemed a Class D1 felony offense for any person, firm, or member of a firm, corporation, or association to give or offer any money, position or thing of value to any member of the State Legislature to influence him to work or to vote for any proposition, and shall be unlawful for any member of the State Legislature to accept any money, position, promise, or reward or thing of value for his work or vote upon any bill, resolution or measure before either house of the Legislature.