Okla. Stat. tit. 21, § 1289.17A

FELONY DISCHARGING FIREARMS It shall be unlawful for any person to willfully or intentionally discharge any firearm or other deadly weapon at or into any dwelling, or at or into any building used for public or business purposes. Any violation of the provisions of this section shall be a Class B1 felony offense punishable by imprisonment in the custody of the Department of Corrections for a term not less than two (2) years nor more than twenty (20) years. The provisions of this section shall not apply to any law enforcement officer in the performance of any lawful duty.