Tidewater (TDW) 10-Q 2011 Q3 Quarterly report

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Tidewater Inc. (the “company”) on Form 10-Q for the period ended December 31, 2010 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), We, Dean E. Taylor, Chairman of the Board, President and Chief Executive Officer, and Quinn P. Fanning, Executive Vice President and Chief Financial Officer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the company

Date:    February 4, 2011	/s/ Dean E. Taylor
	Dean E. Taylor
	Chairman of the Board, President and
	Chief Executive Officer
Date:    February 4, 2011	/s/ Quinn P. Fanning
	Quinn P. Fanning
	Executive Vice President and Chief Financial Officer

A signed original of this written statement has been provided to the company and will be retained by the company and furnished to the Securities and Exchange Commission or its staff upon request.

The certification the registrant furnishes in this exhibit is not deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section. Registration Statements or other documents filed with the Securities and Exchange Commission shall not incorporate this exhibit by reference, except as otherwise expressly stated.