UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities

Exchange Act of 1934 (Amendment No. )

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Core Laboratories N.V.

(Name of Registrant as Specified In Its Charter)

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*** Exercise Your Right to Vote ***

IMPORTANT NOTICE Regarding the Availability of Proxy Materials

for the Shareholder Meeting To Be Held on May 24, 2018

	Meeting Information
CORE LABORATORIES N.V.	Meeting Type:	Annual Meeting
	For holders as of:	April 26, 2018
	Date: May 24, 2018	Time: 9:00 am CEST
	Location:	Hotel Sofitel Legend the Grand Amsterdam
		Oudezijds Voorburgwal 197, 1012 EX
		Amsterdam, The Netherlands

CORE LABORATORIES N.V.	You are receiving this communication because you hold shares in the above named company.
C/O CORE LABORATORIES LP 6316 WINDFERN ROAD HOUSTON, TX 77040	This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting.
	The proxy materials are available at www.proxydocs.com/clb. If you want to receive a paper or e-mail copy of these documents, you must request one. There is no charge to you for requesting a copy. Please make your request for a copy (as instructed on the reverse side) on or before May 10, 2018 to facilitate timely delivery.
	See the reverse side of this notice to obtain proxy materials and voting instructions.

— Before You Vote —

How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:
NOTICE AND PROXY STATEMENT		ANNUAL REPORT
How to View Online:
Have the information that is printed in the box marked by the arrow ˆ			XXXX XXXX XXXX	(located on the following page) and
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— How To Vote —

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Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. To obtain directions to the meeting, call 713 - 328 - 2104.
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Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

CORE LABORATORIES N.V.
The Board of Supervisory Directors recommends that you vote FOR the following:	For	Withhold
1. To re-elect one Class III Supervisory Director, Margaret Ann van Kempen, and to elect one new Class III Supervisory Director, Lawrence Bruno, to serve until our annual meeting in 2021 under the terms and conditions described within the proxy statement and until their successors shall have been duly elected and qualified;
1a) Margaret Ann van Kempen	c	c
1b) Lawrence Bruno	c	c

	For	Against	Abstain			For	Against	Abstain
The Board of Supervisory Directors recommends you vote FOR the following proposals:
2. To appoint KPMG, including its U.S. and Dutch affiliates, (collectively, "KPMG") as Core Laboratories N.V.'s (the "Company") independent registered public accountants for the year ending December 31, 2017.	c	c	c	5. To approve and resolve the extension of the existing authority to repurchase up to 10% of our issued share capital from time to time for an 18-month period, until November 24, 2019, and such repurchased shares may be used for any legal purpose.		c	c	c
3. To confirm and adopt our Dutch Statutory Annual Accounts in the English language for the fiscal year ended December 31, 2017, following a discussion of our Dutch Report of the Management Board for that same period.	c	c	c	6. To approve and resolve the extension of the authority to issue shares and/or to grant rights (including options to purchase) with respect to our common and preference shares up to a maximum of 10% of outstanding shares per annum until November 24, 2019.		c	c	c
4. To approve and resolve the cancellation of our repurchased shares held at 12:01 a.m. CEST on May 24, 2018.	c	c	c	7. To approve and resolve the extension of the authority to limit or exclude the preemptive rights of the holders of our common shares and/or preference shares up to a maximum of 10% of outstanding shares per annum until November 24, 2019.		c	c	c
The Board of Supervisory Directors recommends you vote FOR and One (1) year on the following proposals:
8. To approve, on an advisory basis, the compensation philosophy, policies and procedures described in the section entitled Compensation Discussion and Analysis and the compensation of Core Laboratories N.V.'s named executive officers as disclosed pursuant to the Security and Exchange Commission's compensation disclosure rules, including the compensation tables.	For	Against	Abstain		1 Year	2 Years	3 Years	Abstain
8a. the shareholders approve the compensation philosophy, policies and procedures described in the CD&A, and the compensation of Core Laboratories N.V.'s named executive officers as disclosed pursuant to the SEC's compensation disclosure rules, including the compensation tables;	c	c	c	8b. the shareholders of the Company be provided an opportunity to approve the compensation philosophy, policies and procedures described in the CD&A, and the compensation of Core Laboratories N.V.'s named executive officers as disclosed pursuant to the SEC's compensation disclosure rules, including the compensation tables every:	c	c	c	c
				NOTE: Such other business as may properly come before the annual meeting or any adjournment thereof shall be voted in accordance with the discretion of the attorneys and proxies appointed hereby.