Schlumberger Announces Second Quarter 2003 Conference Call.

Energy Editors/Business Editors

NEW YORK--(BUSINESS WIRE)--July 1, 2003

Schlumberger Limited (NYSE:SLB) today announced that it has scheduled a conference call on July 23, 2003 at 10:00 am EDT to discuss results for the second quarter ending June 30, 2003. The results are expected to be released after market closes on July 22, 2003.

To access the conference call, contact the conference call operator at [phone] (North America) or [phone] (outside North America) approximately 10 minutes prior to the call's start time, and ask for the "Schlumberger Earnings Conference Call." A replay of the conference call will be available until August 6, 2003, and can be accessed by dialing [phone] (North America) and [phone] (outside North America) and giving the access code 689374.

A live webcast of the conference call will also be available at http://www.slb.com/irwebcast on July 23 at 10:00 am EDT on a listen only basis. Please log-in 15 minutes ahead of time to test your browser and register for the webcast. Following the event, a replay will be available at the same URL until August 6, 2003.

About Schlumberger

Schlumberger is a global oilfield and information services company with major activity in the energy industry. The company employs 78,000 people of more than 140 nationalities working in 100 countries and consists of three primary business segments. Schlumberger Oilfield Services is the world's premier oilfield services company supplying a wide range of technology services and solutions to the international oil and gas industry. SchlumbergerSema is a leading supplier of IT consulting, systems integration, and network and infrastructure services to the energy industry, as well as to the public sector, telecommunications and finance markets. WesternGeco, jointly owned with Baker Hughes, is the world's largest and most advanced surface seismic company. In 2002, Schlumberger revenue was $13.5 billion. For more information, visit www.slb.com.