Schlumberger

Schlumberger is the world's leading oilfield services company supplying technology, information solutions and integrated project management that optimize reservoir performance for customers working in the oil and gas industry. Founded in 1926, today the company employs more than 83,000 people of over 140 nationalities working in approximately 80 countries.The company comprises two business segments:

Schlumberger Oilfield Services 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 is the world's largest seismic company and provides advanced acquisition and data processing services.

Schlumberger has principal offices in Houston, Paris and The Hague. Revenue was $22.7 billion in 2009. Schlumberger stock is listed on the New York Stock Exchange, ticker symbol SLB, on the Euronext Paris, Euronext Amsterdam, London and the SWX Swiss stock exchanges.