Schlumberger Limited. (NYSE:SLB)

Schlumberger N.V. (Schlumberger) is the supplier of technology, integrated project management and information solutions to the international oil and gas exploration and production industry. The Company’s segments include Reservoir Characterization Group, which consists of the principal technologies involved in finding and defining hydrocarbon deposits; Drilling Group, which consists of the principal technologies involved in the drilling and positioning of oil and gas wells, and 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, Subsea, Water Services, Carbon Services and the Schlumberger Production Management field production projects.

Official website: www.slb.com