Wyo. Stat. § 41-7-302
Before entering upon their duties, commissioners shall take and subscribe an oath to support the constitution of the United States and the constitution of the state of Wyoming, to faithfully and impartially discharge their duties as commissioners and to render a true account of their doing to the court by which they are appointed whenever required by law or the order of the court. Commissioners shall execute a bond running to the clerk of court and his successors in office as obligees, to be filed with the clerk for the benefit of the parties interested, in an amount to be fixed by the court or presiding judge, and with sureties to be approved by the court or presiding judge, conditioned for the faithful discharge of their duties as commissioners and the faithful accounting of all monies which shall come into their hands as commissioners. A majority shall constitute a quorum and a concurrence of a majority in any matter within their duties shall be sufficient to its determination. The commissioners appointed shall hold their office until the first regular meeting of the commissioners following the date of the order organizing the district and until their respective successors are qualified under the provisions of W.S. 41-7-316. The commissioners appointed by the secretary of the interior shall be subject to removal from office and any commissioner appointed by the secretary of the interior to fill a vacancy shall hold office until less than a majority of the lands within the district are unentered public lands, after which the commissioners shall be elected as otherwise provided in this chapter. If the office of any commissioner so appointed shall become vacant by reason of death, or other cause, the court or judge thereof shall appoint a qualified person to fill the vacancy.
W.S. 41-7-302