Wyo. Stat. § 37-7-206
Such system so purchased, constructed, improved, enlarged, extended or repaired shall remain subject to said statutory mortgage lien until payment in full of the principal of and interest upon said bonds. Any holder of any of said bonds or of any of the coupons representing interest accrued thereon, may, either at law or in equity, by suit, action, mandamus, or other proceedings, protect and enforce said statutory mortgage lien, and may, by suit, action, mandamus, or other proceedings, enforce and compel performance of all duties of the officials of the borrower, including the fixing of sufficient rates, the collection of revenues, the proper segregation of the revenues of the system, and the proper application thereof. Provided, however, that said statutory mortgage lien shall not be construed to give any such bond or coupon holder authority to compel the sale of such system or any part thereof.
W.S. 37-7-206