Wyo. Stat. § 41-7-209: Fraudulent deeds for establishment or defeat of petition.

All deeds made for the purpose of establishing or defeating the prayer of said petition, and not made in good faith and for a valuable consideration, shall be taken and held to be a fraud, and the holders thereof shall not be considered as the owners of the lands described therein; and the filing of said petition shall constitute a lis pendens against all lands described therein from and after the filing thereof.