Wyo. Stat. Ann. § 37-2-215

Whenever the commission shall be of the opinion that any public utility is failing or omitting, or is about to fail or omit to do anything required of it by this act, or by any order of the commission, or is doing anything or is about to do anything or permit anything to be done contrary to or in violation of the provisions of this act, or of any order of the commission, it may begin and prosecute in any district court of this state an appropriate action in law or in equity to remedy or to prevent such real or proposed violation.