<SEC-DOCUMENT>0001567619-19-009571.txt : 20190501
<SEC-HEADER>0001567619-19-009571.hdr.sgml : 20190501
<ACCEPTANCE-DATETIME>20190501171434
ACCESSION NUMBER:		0001567619-19-009571
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190430
FILED AS OF DATE:		20190501
DATE AS OF CHANGE:		20190501

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TRAUB KENNETH H
		CENTRAL INDEX KEY:			0001232602

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06311
		FILM NUMBER:		19788661

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TIDEWATER INC
		CENTRAL INDEX KEY:			0000098222
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER TRANSPORTATION [4400]
		IRS NUMBER:				720487776
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6002 ROGERDALE ROAD
		STREET 2:		SUITE 600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77072
		BUSINESS PHONE:		7134705300

	MAIL ADDRESS:	
		STREET 1:		6002 ROGERDALE ROAD
		STREET 2:		SUITE 600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77072

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TIDEWATER MARINE SERVICE INC
		DATE OF NAME CHANGE:	19780724
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-04-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000098222</issuerCik>
        <issuerName>TIDEWATER INC</issuerName>
        <issuerTradingSymbol>TDW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001232602</rptOwnerCik>
            <rptOwnerName>TRAUB KENNETH H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TIDEWATER INC.</rptOwnerStreet1>
            <rptOwnerStreet2>6002 ROGERDALE ROAD, SUITE 600</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77072</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-04-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>7500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17088</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents a grant of restricted stock units that will vest on April 30, 2020.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Bruce D. Lundstrom as Agent and Attorney-in-Fact for Kenneth H. Traub</signatureName>
        <signatureDate>2019-05-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poa_traub.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
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    <title></title>
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  <div style="text-align: center; line-height: 12.55pt; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">POWER OF ATTORNEY</div>
  <div style="line-height: 12.55pt;"><br style="line-height: 12.55pt;">
  </div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Know all by these presents, that the undersigned (the Reporting Person) hereby constitutes and appoints each of Bruce D.
      Lundstrom, Executive Vice President, General Counsel and Secretary of Tidewater Inc., Yang Xu, Assistant Secretary of Tidewater Inc., Quintin Kneen, Executive Vice President and Chief Financial Officer of Tidewater Inc., Darren J. Vorst, Vice
      President and Treasurer of Tidewater Corporate Services, L.L.C., or any of their successors in office, and Curtis R. Hearn and Hope M. Spencer, signing individually, as the Reporting Person's true and lawful attorney-in-fact to:</font></div>
  <div style="line-height: 12.55pt;"><br style="line-height: 12.55pt;">
  </div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">1.&#160;&#160; Execute for and on behalf of the Reporting Person, in the Reporting Person's capacity as an officer or director of
      Tidewater Inc. (the Company), Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;</font></div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </font><br style="line-height: 12.55pt;">
  </div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">2.&#160;&#160; Execute for and on behalf of the Reporting Person, in the Reporting Person's capacity as a security holder of the
      Company selling securities of the Company in accordance with Rule 144 under the Securities Act of 1933, a Form 144;</font></div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </font><br style="line-height: 12.55pt;">
  </div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">3.&#160;&#160; Do and perform any and all acts for and on behalf of the Reporting Person that may be necessary or desirable to
      complete and execute any such Form 3, 4, 5 or 144 and timely file such form with the United States Securities and Exchange Commission, and any stock exchange or similar authority; and</font></div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </font><br style="line-height: 12.55pt;">
  </div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">4.&#160;&#160; Take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such
      attorney-in-fact, may be of benefit to, and in the best interest of, or legally required by, the Reporting Person, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of
      Attorney shall be in such form and shall contain such items and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.</font></div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </font><br style="line-height: 12.55pt;">
  </div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The Reporting Person hereby grants to each such attorney-in-fact full power and authority to do and perform any and every
      act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the Reporting Person might or could do if personally present, with full power
      of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by the virtue of this Power of Attorney and the rights and
      powers herein granted. The Reporting Person acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the Reporting Person, are not assuming, nor is the Company assuming, any of the Reporting Person's
      responsibilities to comply with Section 16 of the Securities Exchange Act of 1934 or Rule 144 under the Securities Act of 1933.</font></div>
  <div style="line-height: 12.55pt;"><br style="line-height: 12.55pt;">
  </div>
  <div style="text-align: justify; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">This Power of Attorney shall remain in full force and effect until the Reporting Person is no longer required to file
      Forms 3, 4, 5 or 144 with respect to the Reporting Person's holdings of and transactions in securities issued by the Company, unless earlier revoked by the Reporting Person in a signed writing delivered to the foregoing attorneys-in-fact.</font></div>
  <div style="line-height: 12.55pt;"><br style="line-height: 12.55pt;">
  </div>
  <div style="line-height: 12.55pt;"><br style="line-height: 12.55pt;">
  </div>
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      <tr>
        <td style="width: 50%; vertical-align: top;">
          <div style="text-align: left; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Date: April 9, 2019</font></div>
        </td>
        <td style="width: 50%; vertical-align: top; border-bottom: 2px solid black;">
          <div style="text-align: center; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">/s/ Kenneth H. Traub</font></font></div>
        </td>
      </tr>
      <tr>
        <td style="width: 50%; vertical-align: top;">&#160;</td>
        <td style="width: 50%; vertical-align: top;">
          <div style="text-align: center; line-height: 12.55pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">By:&#160; Kenneth H. Traub</font></div>
        </td>
      </tr>

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  </div>
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