Wyo. Stat. § 13-2-707: Prohibition on foreign bank branching.

Nothing in this act shall be construed as permitting a bank to establish a branch in any state other than Wyoming. Except as provided in W.S. 13-2-702(m) and 13-2-901 through 13-2-904, a bank not authorized or organized to do business under the laws of this state, or a bank organized under the laws of a country other than the United States, shall not establish or operate a branch in the state of Wyoming.