TOSCO FINANCING TRUST Prospectus Supplement dated November 19, 1997 to the Prospectus dated March 26, 1997 The Selling Holders selling Offered Securities pursuant to this Prospectus Supplement and certain information concerning the sale of the Offered Securities are as follows: Number of Offered Selling Holder Offered Securities Owned Securities to be Sold ICI American Holdings 9,000 9,000 Merrill Lynch Pierce Fenner & Smith Inc. 47,100 47,100 Bear Stearns & Co. Inc. 123,270 123,270 NatWest Securities Limited 120,000 120,000 The above-listed securities will be sold to purchasers by the Selling Holders. There are no special arrangements or agreements with any brokers/dealers regarding the sale of the Offered Securities. The Selling Holders do not have, and during the past three years have not had, any material relationship with Tosco Corporation or any of its affiliates. The Date of this Prospectus Supplement is November 19, 1997