EX-15 6 0006.txt LETTER RE UNAUDITED INTERIM FINANCIAL INFORMATION EXHIBIT 15 The Board of Directors and Shareholders Tidewater Inc. We are aware of the incorporation by reference in the Registration Statements (Forms S-8 No. 33-63094, No. 33-38240, No. 333-32729 and No. 333-47687) of Tidewater Inc. of our report dated January 15, 2001 relating to the unaudited condensed consolidated interim financial statements of Tidewater Inc. that are included in its Form 10-Q for the quarter ended December 31, 2000. Pursuant to Rule 436(c) of the Securities Act of 1933, our report is not a part of the registration statements prepared or certified by accountants within the meaning of Section 7 or 11 of the Securities Act of 1933. Ernst & Young LLP New Orleans, Louisiana January 15, 2001