Okla. Stat. tit. 74 § 1221.A
In order to provide for the conservation, preservation, protection and optimum development and utilization of surface water and groundwater within this state, the Legislature hereby establishes a moratorium on any state or tribal compact or any intergovernmental cooperative agreement, authorized pursuant to law, which is drafted in whole or in part to apportion surface water or groundwater ownership, or authorize or otherwise implement any sale or exportation of surface water or groundwater outside this state, except as authorized by the provisions of this act. Unless earlier repealed or revoked by the Legislature, the moratorium shall be in effect for a five-year period beginning on the effective date of this act or until such time as the State of Oklahoma conducts and completes a comprehensive scientific hydrological study of the water resources of this state.
Okla. Stat. tit. 74, § 1221.A