<SEC-DOCUMENT>0001206774-18-002386-index.html : 20180810
<SEC-HEADER>0001206774-18-002386.hdr.sgml : 20180810
<ACCEPTANCE-DATETIME>20180810161548
ACCESSION NUMBER:		0001206774-18-002386
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20180810
DATE AS OF CHANGE:		20180810
EFFECTIVENESS DATE:		20180810

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MCDERMOTT INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000708819
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED PLATE WORK (BOILER SHOPS) [3443]
		IRS NUMBER:				720593134
		STATE OF INCORPORATION:			R1
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08430
		FILM NUMBER:		181009021

	BUSINESS ADDRESS:	
		STREET 1:		777 N. ELDRIDGE PARKWAY
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77079
		BUSINESS PHONE:		281-870-5000

	MAIL ADDRESS:	
		STREET 1:		777 N. ELDRIDGE PARKWAY
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77079
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>mcderm3334531-defa14a.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS
<TEXT>
Document 1 - file: mcderm3334531-defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>mcderm3334531-defa14a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: mcderm3334531-defa14a.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>mcderm3334531-defa14ax1x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: mcderm3334531-defa14ax1x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>mcderm3334531-defa14ax1x2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: mcderm3334531-defa14ax1x2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>mcderm3334531-defa14ax2x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: mcderm3334531-defa14ax2x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>mcderm3334531-defa14ax3x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: mcderm3334531-defa14ax3x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>mcderm3334531-defa14ax4x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: mcderm3334531-defa14ax4x1.jpg

</DOCUMENT>
</SEC-DOCUMENT>