<SEC-DOCUMENT>0001062993-17-004010-index.html : 20170831
<SEC-HEADER>0001062993-17-004010.hdr.sgml : 20170831
<ACCEPTANCE-DATETIME>20170830185632
ACCESSION NUMBER:		0001062993-17-004010
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170831
DATE AS OF CHANGE:		20170830

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CORE LABORATORIES N V
		CENTRAL INDEX KEY:			0001000229
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL, GAS FIELD SERVICES, NBC [1389]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			P7
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-52559
		FILM NUMBER:		171061747

	BUSINESS ADDRESS:	
		STREET 1:		STRAWINSKYLAAN 913
		STREET 2:		TOWER A, LEVEL 9
		CITY:			1077 XX AMSTERDAM
		STATE:			P7
		ZIP:			1077 XX
		BUSINESS PHONE:		3124203191

	MAIL ADDRESS:	
		STREET 1:		6316 WINDFERN
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77040

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WCM INVESTMENT MANAGEMENT/CA
		CENTRAL INDEX KEY:			0001061186
		IRS NUMBER:				953046237
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1130

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		281 BROOKS STREET
		CITY:			LAGUNA BEACH
		STATE:			CA
		ZIP:			92651
		BUSINESS PHONE:		9493800200

	MAIL ADDRESS:	
		STREET 1:		281 BROOKS STREET
		CITY:			LAGUNA BEACH
		STATE:			CA
		ZIP:			92651
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>sched13ga.htm
<DESCRIPTION>FORM SC 13G/A
<TEXT>
Document 1 - file: sched13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>