<SEC-DOCUMENT>0001000229-18-000060-index.html : 20180403
<SEC-HEADER>0001000229-18-000060.hdr.sgml : 20180403
<ACCEPTANCE-DATETIME>20180403172925
ACCESSION NUMBER:		0001000229-18-000060
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180331
FILED AS OF DATE:		20180403
DATE AS OF CHANGE:		20180403

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Dunlap Charles L
		CENTRAL INDEX KEY:			0001437468

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14273
		FILM NUMBER:		18734720

	MAIL ADDRESS:	
		STREET 1:		PASADENA REFINING SYSTEM INC.
		STREET 2:		111 RED BLUFF ROAD
		CITY:			PASADENA
		STATE:			TX
		ZIP:			77506

ISSUER:		

	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

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_152279095238351.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: wf-form4_152279095238351.html

Document 1 - RAW XML: wf-form4_152279095238351.xml

</DOCUMENT>
</SEC-DOCUMENT>