Wyo. Stat. § 37-7-201
If the petition for the organization of a power district under W.S. 37-7-101, states that the bonds to be issued by such district for the purpose of raising money shall be a lien only upon the power plant, distribution system, and other property used in the manufacture or distribution of electrical energy, and upon the revenues from electrical energy so developed or distributed, the petition or petitions of fifty (50) freeholders of the area to be served shall be sufficient to give the court jurisdiction to hear such petition, and to organize a power district; provided, no district organized under a petition providing such revenue bonds only, shall have authority to make any assessments against the real estate of the district, unless it shall amend its petition and follow the procedure provided in W.S. 37-7-101.
W.S. 37-7-201