Schlumberger is the leading supplier of technology, information solutions, and integrated project management to the international petroleum industry. The company comprises two business segments: Schlumberger Oilfield Services and WesternGeco, which together provide virtually every type of service to the upstream E&P industry. Business is managed geographically. The structure offers customers a single point of contact at the local level for field operations and brings together geographically focused teams to meet local needs and deliver customized solutions. A global information pipeline links the field, technology groups, knowledge communities, and engineering support groups and enables boundary-free knowledge-sharing. Two of the company hallmarks are an emphasis on diversity and a commitment to R&D. Founded in 1926, today the company employs more than 80,000 people of over 140 nationalities working in approximately 80 countries. In 2007 its R&D investment reached USD 728 million supporting a network of 23 R&D centers worldwide. Schlumberger has principal offices in Houston, Paris, and The Hague. Revenue was USD 23.28 billion in 2007. Schlumberger stock is listed on the New York Stock Exchange and the Euronext Paris, Euronext Amsterdam, London, and SWX Swiss stock exchanges.