Core Laboratories' First Quarter 2009 Webcast at 7:30 a.m. CDT on April 23, 2009

HOUSTON, April 7 /PRNewswire-FirstCall/ -- Core Laboratories (NYSE: CLB) will
broadcast its first quarter 2009 conference call over the Internet at 07:30
a.m. CDT on April 23, 2009.

David Demshur, CEO, Richard Bergmark, CFO, and Monty Davis, COO, will discuss
financial and operating results. An earnings press release will be issued
after market close on April 22nd and may be accessed through the Company's
website at www.corelab.com.

To participate in the live webcast, simply log on to www.corelab.com at least
fifteen minutes prior to the start of the call. For those who are not
available to listen to the live webcast, a replay will be available on Core's
website shortly after the call and will remain on the site for 10 days.

To listen to the conference call via telephone, please contact Elizabeth
Blanchard at 713-328-2110 for the dial-in number.

Core Laboratories N.V. (www.corelab.com) is a leading provider of proprietary
and patented reservoir description, production enhancement, and reservoir
management services used to optimize petroleum reservoir performance. The
Company has over 70 offices in more than 50 countries and is located in every
major oil-producing province in the world.

SOURCE Core Laboratories

Richard L. Bergmark of Core Laboratories, +1-713-328-2101,
investor.relations@corelab.com