Wyo. Stat. Ann. § 17-18-117

Effective January 1, 1990, notwithstanding W.S. 17-16-721(b) a qualified corporation may elect to allow the voting of shares which are owned directly or indirectly by a second corporation, a majority of whose shares entitled to vote for directors of the second corporation are owned by the first corporation. The election shall be made in the articles of incorporation as amended. The number of such shares that may be voted is limited to forty percent (40%) of the total shares of that class outstanding.