Okla. Stat. tit. 82, § 82-105.21: Surplus water

The owner of any works for the storage, diversion or carriage of

water, which contain water in excess of his needs for irrigation or

other beneficial use for which it has been appropriated, shall be

required to deliver such surplus, at reasonable rates for storage or

carriage, or both, as the case may be, to the parties entitled to

the use of the water for beneficial purposes. In case of the

refusal of such owner to deliver any such surplus water at

reasonable rates as determined by the Board, he may be compelled to

do so by the district court for the county in which the surplus

water is to be used.