-------------------------------------------------------------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to section 13 or 15 (d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 16, 2002 Exact Name of Registrant as Specified in its Commission File Charter, Principal Office Address and State of I.R.S. Employer Number Telephone Number Incorporation Identification No. ------------------ ----------------------------------------------- ------------------ ----------------------- 1-16827 Premcor Inc. Delaware 43-1851087 1700 East Putnam Avenue Suite 500 Old Greenwich, Connecticut 06870 (203) 698-7500 1-13514 Premcor USA Inc. Delaware 43-1495734 1700 East Putnam Avenue Suite 500 Old Greenwich, Connecticut 06870 (203) 698-7500 1-11392 The Premcor Refining Group Inc. Delaware 43-1491230 1700 East Putnam Avenue Suite 500 Old Greenwich, Connecticut 06870 (203) 698-7500 -------------------------------------------------------------------------------- Page 1 of 4 Item 5. Other Events On September 16, 2002, Premcor Inc. announced plans to further reduce costs by restructuring and reducing the non-represented workforce at its Port Arthur, Texas and Lima, Ohio refineries; making additional staff reductions at the St. Louis administrative office beyond those announced last April; and reducing crude acquisition costs at its Lima refinery. Premcor Inc. owns all of the outstanding common stock of Premcor USA Inc., and Premcor USA Inc. owns all of the outstanding common stock of The Premcor Refining Group Inc. The Premcor Refining Group Inc. owns and operates the Port Arthur and Lima refineries. A copy of Premcor Inc.'s press release making such announcement is attached hereto as Exhibit 99. Page 2 of 4 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Premcor Inc. Premcor USA Inc. The Premcor Refining Group Inc. (Co-Registrants) /s/ Dennis R. Eichholz ---------------------------------------- Dennis R. Eichholz Controller (principal accounting officer and duly authorized officer) September 19, 2002 Page 3 of 4 Exhibit Index Exhibit No. Description 99 Press release dated as of September 16, 2002 Page 4 of 4