In Minnesota, “[t]he general rule is that contracts having no fixed term are terminable at will by either party.” Polk v. Mut. Serv. Life Ins. Co., 344 N.W.2d 427, 430 (Minn.Ct.App.1984). There is no evidence that the exception to the rule—unilateral termination is unlawful when the contract provides for continued performance “as long as” one party performs satisfactorily—would apply. Minn. Deli Provisions, Inc. v. Boar's Head Provisions Co., Inc., 606 F.3d 544, 549 (8th Cir.2010) (interpreting Minnesota law).