Wyo. Stat. § 37-12-204: Refusal to file report or answer questions.

Any public utility which refuses to make and file any report called for by the commission within the time specified, or within the time extended, as the case may be, or willfully refuses to answer to any question propounded by the commissioner shall be guilty of a misdemeanor and on conviction thereof shall be fined not less than five hundred dollars ($500.00), or more than one thousand dollars ($1,000.00) for each offense.