SCHLUMBERGER
NYSE : SLB

SCHLUMBERGER

August 24, 2005 16:44 ET

Schlumberger Announces Third Quarter 2005 Results Conference Call

NEW YORK--(CCNMatthews - Aug 24, 2005) -

Schlumberger Limited (NYSE:SLB) will hold a conference call at 9:00 a.m. ET on October 21, 2005, to discuss the results for the third quarter ending on September 30, 2005. The results are expected to be released at 6:00 a.m. ET that same morning.

To access the conference call, attendees should contact the conference call operator at +1-888-428-4478 within North America or +1-612-288-0329 outside of 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 November 4, 2005, and can be accessed by dialing +1-800-475-6701 within North America or +1-320-365-3844 outside of North America, and giving the access code 794181.

A live webcast of the conference call will be simultaneously broadcast at www.SLB.com/irwebcast on a listen-only basis. Attendees should log in 15 minutes ahead of time to test their browsers and register for the webcast. Following the event, a replay will be available at the same URL until November 4, 2005.

About Schlumberger

Schlumberger is the world's leading oilfield services company supplying technology, project management and information solutions that optimize performance for customers working in the oil and gas industry. The company employs more than 58,000 people of over 140 nationalities working in more than 80 countries, and comprises two business segments. Schlumberger supplies a wide range of products and services from formation evaluation through directional drilling, well cementing and stimulation, well completions and productivity to consulting, software, information management and IT infrastructure services that support core industry operational processes. WesternGeco, jointly owned with Baker Hughes, is the world's largest seismic company and provides advanced acquisition and data processing services. In 2004, Schlumberger operating revenue was $11.48 billion. For more information, visit SLB.com.

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