## SIGNATURES 

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 

Date: February 13, 2014 

By: /s/ JACOBUS SCHOUTEN 

## CORE LABORATORIES N.V. By its sole managing director, Core Laboratories International B.V. 

Jacobus Schouten Managing Director of Core Laboratories International B.V. 

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities indicated, on the 13th day of February, 2014. 

## Signature 

/s/ DAVID M. DEMSHUR 

David M. Demshur 

/s/ RICHARD L. BERGMARK 

Richard L. Bergmark 

/s/ C. BRIG MILLER 

C. Brig Miller 

/s/ CHARLES L. DUNLAP 

Charles L. Dunlap 

/s/ MICHAEL C. KEARNEY 

Michael C. Kearney 

/s/ D. JOHN OGREN 

D. John Ogren 

/s/ JAN WILLEM SODDERLAND 

Jan Willem Sodderland 

/s/ LUCIA VAN GEUNS 

Lucia van Geuns 

/s/ MARGARET ANN VAN KEMPEN 

Margaret Ann van Kempen 

President, Chief Executive Officer, Chairman and Supervisory Director 

Executive Vice President, Chief Financial Officer and Supervisory Director 

Vice President Finance, Treasurer and Chief Accounting Officer 

## Title 

Supervisory Director 

Supervisory Director 

Supervisory Director 

Supervisory Director 

Supervisory Director 

Supervisory Director 

