In their 14-eount complaint, Minnie and Charles Fox set forth a hybrid section 301 claim against the Company and the Union. See, e.g., White v. Anchor Motor Freight, Inc., 899 F.2d 555, 559-60 (6th Cir.1990) (explaining theory of hybrid 301 claims). Additionally, the plaintiffs alleged a host of pendent state claims against various defendants under Ohio law including tortious interference with contractual relations, slander, breach of contract and promissory estoppel, negligence, wrongful discharge in violation of public policy, fraud, intentional infliction of emotional distress, and loss of consortium on behalf of Charles Fox. In response to the defendants’ motions for dismissal and summary judgment, the district court filed a memorandum opinion on May 4, 1989, explaining that the applicable six-month statute of limitations barred the hybrid section 301 claim. After finding the tortious interference claim subject to section 301 preemption, the district court likewise dismissed that claim. Having eliminated all of the plaintiffs’ federal causes of action from the lawsuit, the district court dismissed the remaining pendent state claims without prejudice. This appeal by the plaintiff, as well as the Union’s cross-appeal, followed.
The plaintiffs identify three assignments of error on appeal. First, they contend that the district court erred in ruling that Minnie Fox’s state law claim for tortious interference with her employment contract falls within the ambit of section 301 preemption. Second, they challenge the district court’s application of the six-month statute of limitations to bar Minnie Fox’s hybrid section 301 claim and her preempted tortious interference claim. Finally, they argue that the district court erroneously refused to exercise pendent jurisdiction over their remaining state law claims. The Union’s cross-appeal contests the district court’s rulings that section 301 does not preempt the plaintiffs’ state law claims for breach of contract and promissory estop-pel, negligence, fraud, intentional infliction of emotional distress, and loss of consortium.3
II.
Section 301, by its terms, governs “[sjuits for violation of contracts between an employer and a labor organization....” 29 U.S.C. § 185(a). However, the Supreme Court has read section 301 expansively to include individual collective bargaining workers’ claims. See, e.g., Smith v. Evening News Ass’n, 371 U.S. 195, 200-01, 83 S.Ct. 267, 270-71, 9 L.Ed.2d 246 (1962). The Court also has deduced that section 301 “authorizes federal courts to fashion a body of federal law for the enforcement” of CBAs. See Textile Workers v. Lincoln Mills, 353 U.S. 448, 451, 77 S.Ct. 912, 915, 1 L.Ed.2d 972 (1957). To ensure uniformity in this area of federal law, the Court has further concluded that “ ‘[sjtate law does not exist as an independent source of private rights to enforce collective bargaining contracts.’ ” Caterpillar Inc. v. Williams, 482 U.S. 386, 394, 107 S.Ct. 2425, 2430, 96 L.Ed.2d 318 (1987). In this respect, section 301 constitutes an exception to the well-pleaded complaint rule because “the preemptive force of § 301 is so powerful as to displace entirely any state cause of action ‘for violation of contracts between an employer and a labor organization.’ ” Franchise Tax Bd. v. Construction Laborers Vacation Trust, 463 U.S. 1, 23, 103 S.Ct. 2841, 2853, 77 L.Ed.2d 420 (1983). “State law is thus ‘pre-empted’ by § 301 in that only the federal law fashioned by the courts under § 301 governs the interpretation and application of collective-bargaining agreements.” United Steelworkers of America v. Rawson, — U.S. -, 110 S.Ct. 1904, 1909, 109 L.Ed.2d 362 (1990).
The preemptive reach of section 301, however, is by no means boundless. Section 301 preempts only state law claims
3
Because the plaintiffs did not name the Union as a defendant with respect to their claims for slander and wrongful discharge in violation of public policy, and none of the other defendants has pursued a cross-appeal, we need not address the district court’s determination that section 301 does not preempt either of these state claims.