Wyo. Stat. Ann. § 37-2-118

Any public utility, person, municipality or the attorney general may complain to the commission of anything, actual or proposed, done or omitted to be done in violation of W.S. 37-1 through 37- 64 [§§ 37-1-101 through 37-3-114] or W.S. 37-260 through 37-272 [§§ 37-12-201 through 37-12-213], or of an order of the commission.