Wyo. Stat. § 41-6-301
When two (2) or more persons, joint owners in an irrigation ditch or reservoir, not incorporated, or their lessees, are unable to agree relative to the division or distribution of water received through their ditch or from their reservoir, it shall be lawful for any of the owners or lessees to apply to the water commissioner of the district in which the ditch or reservoir shall be located, by a written notice setting forth that fact, asking the water commissioner to take charge of the ditch or reservoir for the purpose of making a just division or distribution of the water from the ditch or reservoir to the parties entitled to the use of the water. The water commissioner shall take exclusive charge of the ditch or reservoir for the purpose of dividing the water in accordance with rights established by existing decrees, and continuing the work until the necessity shall cease to exist. In all cases where the water commissioner or a deputy water commissioner is called upon to divide the waters of a ditch or reservoir between appropriators, when the term of his employment exceeds three (3) consecutive days he shall be paid in full for his service by the interested water users in proportion to the established rights of each. Any payments not made for the service of the water commissioner after a written demand has been made for payment, the bill for the water commissioner's services shall be a lien upon any land or other property owned by an interested water user refusing to pay and may be recovered in any court of competent jurisdiction. Any reimbursement recovered under this section for services of the water commissioner shall be paid into the general fund.
W.S. 41-6-301