Wyo. Stat. § 9-7-115

(a) If the authority defaults in the payment of principal of or interest on any bonds after they become due, whether at maturity or upon call for redemption, and the default continues for a period of thirty (30) days, or if the authority fails or refuses to comply with the provisions of this act, or defaults in any agreement made with the holders of any bonds, the holders of twenty-five percent (25%) in aggregate principal amount of the bonds of the issue then outstanding, by instrument or instruments filed in the office of the secretary of state, may appoint a trustee to represent the holders of the bonds for the purposes herein provided.

(b) The trustee may, and upon written request of the holders of twenty-five percent (25%) in principal amount of such bonds then outstanding shall, in his or its own name:

(i) By suit, action or proceeding enforce all rights of the bondholders to require the authority to carry out any other agreements with the holders of the bonds and to perform its duties under this act;

(ii) Bring suit upon the bonds;

(iii) By action or suit, require the authority to account as if it were the trustee of an express trust for the holders of the bonds;

(iv) By action or suit, enjoin any acts or things which may be unlawful or in violation of the rights of the holders of the bonds;

(v) Declare all the bonds due and payable, and if all defaults are made good, then, with the consent of the holders of twenty-five percent (25%) of the principal amount of the bonds then outstanding, to annul the declaration and its consequences.

(c) In addition, the trustee has all the powers necessary or appropriate for the exercise of any functions specifically set forth in this act or incident to the general representation of bondholders in the enforcement and protection of their rights.