Schlumberger Ltd was founded in 1926. The Company is a supplier of technology, integrated project management and information solutions to the international oil and gas exploration and production industry. Its business segments are Reservoir Characterization Group, Drilling Group and Production Group. The Reservoir Characterization Group consists of the principal Technologies involved in finding and defining hydrocarbon resources. These include WesternGeco, Wireline, Testing Services, Schlumberger Information Solutions (SIS) and PetroTechnical Services. The Drilling Group consists of the principal Technologies involved in the drilling and positioning of oil and gas wells and comprises Bits & Advanced Technologies, M-I SWACO, Geoservices, Drilling & Measurements, Drilling Tools & Remedial, Saxon Rig Services and Integrated Project Management well construction projects. The Production Group consists of the principal Technologies involved in the lifetime production of oil and gas reservoirs and includes Well Services, Completions, Artificial Lift, Well Intervention, Water Services and Schlumberger Production Management field production projects. It operates through four geographic areas, North America, Latin America, Europe/CIS/Africa and Middle East & Asia. The Company is subject to increasingly stringent laws and regulations relating to importation and use of hazardous materials, radioactive materials, chemicals and explosives and to environmental protection, including laws and regulations governing air emissions, hydraulic fracturing, water discharges and waste management.