CGG is an integrated geosciences company, which provides geological geophysical and reservoir capabilities to its broad base of customers primarily from the global oil and gas industry. It manufactures geophysical equipment, as a provider of marine, land and airborne data acquisition services. CGG operates its business through three segments: Equipment, Acquisition and Geology, Geophysics & Reservoir. The Equipment segment comprises of manufacturing and sales of seismic equipment used for data acquisition, both on land and marine. The Acquisition segment comprises of Marine: offshore seismic data acquisition and Land and Airborne and other seismic data acquisition. The Geology, Geophysics & Reservoir segment comprises the Multi-Client Business Line and the Subsurface Imaging and Reservoir business line. The company was founded by Conrad Schlumberger on July 23, 1931 and is headquartered in Paris, France.