Wyo. Stat. § 34-2-129
Current with changes from the 2024 Legislative Session, Acts 1-58, 60-118
No lease which shall have expired by its own limitation shall be again renewed except by express contract in writing, signed by the parties thereto, whether the original lease be written or verbal. Nor shall any other tenancy than that by sufferance exist after the termination of the original lease, unless created as aforesaid, by express contract in writing.
W.S. 34-2-129