https://www.fool.com/earnings/call-transcripts/2019/04/26/core-laboratories-nv-clb-q1-2019-earnings-call-tra.aspx
Core Laboratories NV (CLB) Q1 2019 Earnings Call Transcript | The Motley Fool
Apr 26, 2019 - CLB earnings call for the period ending March 31, 2019.
core laboratories nvearnings call transcriptq1 2019