Exhibit 15.1
May 26, 2004
Premcor Inc.
1700 East Putnam Avenue, Suite 400
Old Greenwich, CT 06870
We have made a review, in accordance with standards of the Public Company Accounting Oversight Board (United States), of the unaudited interim financial information of Premcor Inc. and subsidiaries for the three-month periods ended March 31, 2004 and 2003, and have issued our report thereon dated April 29, 2004; because we did not perform an audit, we expressed no opinion on that information.
We are aware that our report referred to above, which is included in your Quarterly Report on Form 10-Q for the quarter ended March 31, 2004, is incorporated by reference in this Post-Effective Amendment No. 1 to Registration Statement No. 333-87210 of Premcor Inc. on Form S-8.
We also are aware that the aforementioned report, pursuant to Rule 436(c) under the Securities Act of 1933, is not considered a part of the Registration Statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Sections 7 and 11 of that Act.
/s/ Deloitte & Touche LLP |
Stamford, Connecticut |
