CGG : Completes in Record 9 Days True Fast-track Depth Imaging of 1700 km2 of Marine Data

Paris, France - June 2, 2015

CGG announced today that it has completed in record time the fast-track results for a 1,748-square-kilometer BroadSeis 3D marine acquisition and depth imaging project for one of the world's largest international oil companies. Just 9 days after the last shotpoint, CGG delivered pre-stack depth migration (PSDM) volumes using Kirchhoff and Reverse Time Migration (RTM).

The fast-track BroadSeis volume was successfully processed through deghosting, 3D demultiple, tomography, salt model building and PSDM. This achievement would not have been possible without CGG's talented offshore and onshore technical staff, its petaflop computing facility and innovative processing and imaging technology.

Jean-Georges Malcor, CGG CEO, said: "This impressive accomplishment is the result of CGG's continuous efforts to meet and exceed our clients' expectations for fast delivery of best-in-class imaging products to accelerate decision-making on their prospects. We are able to achieve this through seamless management of offshore and onshore processing capabilities to deliver the very best product."

About CGG:

CGG (www.cgg.com ) is a fully integrated Geoscience company providing leading geological, geophysical and reservoir capabilities to its broad base of customers primarily from the global oil and gas industry. Through its three complementary business divisions of Equipment, Acquisition and Geology, Geophysics & Reservoir (GGR), CGG brings value across all aspects of natural resource exploration and exploitation.

CGG employs over 8,500 people around the world, all with a Passion for Geoscience and working together to deliver the best solutions to its customers.

CGG is listed on the Euronext Paris SA (ISIN: 0000120164) and the New York Stock Exchange (in the form of American Depositary Shares. NYSE: CGG).

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