Court of Appeals for the Ninth Circuit September 25, 1991, No. 89-16353 (Williams v. Caterpillar, Inc.)

O’SCANNLAIN, Circuit Judge:

Nine former, long-term employees of Caterpillar appeal from the district court’s dismissal of their claims. They contend that the company’s calculation of their pension and retiree medical benefits constitutes a breach of fiduciary duty under the Employee Retirement Income Security Act of 1974 (“ERISA”), 29 U.S.C. §§ 1001-1461 (1988). We now affirm.