Wyo. Stat. § 41-3-328: Witnesses' fees and mileage.

Every witness who shall attend before the court, or the judge thereof in vacation, or before the person appointed to take testimony in causes relating to water rights, under subpoena, by request of any party, shall be entitled to the same fees and mileage as witnesses in civil cases in the district court, and shall be paid by the party requiring the testimony.