<SEC-DOCUMENT>0001000229-15-000075-index.html : 20150504 <SEC-HEADER>0001000229-15-000075.hdr.sgml : 20150504 <ACCEPTANCE-DATETIME>20150504160526 ACCESSION NUMBER: 0001000229-15-000075 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 3 CONFORMED PERIOD OF REPORT: 20150504 ITEM INFORMATION: Changes in Registrant's Certifying Accountant ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20150504 DATE AS OF CHANGE: 20150504 FILER: 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: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-14273 FILM NUMBER: 15828452 BUSINESS ADDRESS: STREET 1: 1017 BZ AMSTERDAM STREET 2: HERENGRACHT 424 CITY: THE NETHERLANDS STATE: P7 BUSINESS PHONE: 3124203191 MAIL ADDRESS: STREET 1: 6316 WINDFERN CITY: HOUSTON STATE: TX ZIP: 77040 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>a8k_clb-changeinauditfirm.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: a8k_clb-changeinauditfirm.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-16.1 <SEQUENCE>2 <FILENAME>exhibit16-1_letterfrompwc.htm <DESCRIPTION>EXHIBIT 16.1 <TEXT> Document 2 - file: exhibit16-1_letterfrompwc.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>pwcletterhead.gif <TEXT> Document 3 - file: pwcletterhead.gif
</DOCUMENT> </SEC-DOCUMENT>