Durdahl v. National Safety Associates, Inc
In Durdahl v. National Safety Associates, Inc., 988 P.2d 525 (Wyo. 1999), the Wyoming Supreme Court adopted the modern approach to forum selection clauses, holding that such clauses "are prima facie valid and will be enforced absent a demonstration by the party opposing enforcement that the clause is unreasonable or based upon fraud or unequal bargaining positions." Id. at 528.
A party seeking to avoid enforcement of such a clause must provide "evidence that the forum selection clause is unreasonable, against any public policy of this state, or that the forum of choice . . . is seriously inconvenient." Id. at 530.