FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * LOUSTEAU J KEITH   2. Issuer Name and Ticker or Trading Symbol TIDEWATER INC [TDW] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Exec. V. P., CFO, & Treasurer (Last) (First) (Middle) C/O TIDEWATER INC., 601 POYDRAS ST., SUITE 1900 3. Date of Earliest Transaction (Month/Day/Year) 03/30/2005 (Street) NEW ORLEANS, LA 70130 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/30/2005   A   9,000 (1) A (1) 16,000 D   Common Stock               4,647 I By Trustee (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Stock Option (Right to Buy) (3)

$ 37.55

03/30/2005

A

7,000

03/30/2005(3)

03/30/2015

Common Stock

7,000

(3)

7,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LOUSTEAU J KEITH C/O TIDEWATER INC. 601 POYDRAS ST., SUITE 1900 NEW ORLEANS, LA 70130			Exec. V. P., CFO, & Treasurer

Signatures

J. Keith Lousteau, by: Michael Goldblatt, Agent and Attorney-in-Fact		04/01/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Restricted stock award under the Tidewater Inc. 2001 Stock Incentive Plan. The Plan pursuant to which the restricted stock award was granted provides for tax withholding rights. The restricted stock award vests at the rate of 25% per year if Return on Total Capital (ROTC) for the year of determination exceeds the greater of 15% or the average of the prior four year's ROTC. Any unvested restricted stock will automatically vest on March 30, 2009.
(2)	Acquired on a periodic basis by the Trustee of the Tidewater Inc. 401(k) Savings Plan. Includes shares acquired for my account through March 31, 2005.
(3)	Stock option granted under the Tidewater Inc. 2001 Stock Incentive Plan in transaction exempt under Rule 16b-3. The Plan pursuant to which the reported option was granted provides for tax withholding rights. The option vests on March 30, 2005.

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