ASKER, NORWAY (22 June 2015) - TGS announces its participation in the 2,500 km² Monuments 3D survey.  This survey is being acquired by Dolphin Geophysical in the North Carnarvon Basin, offshore Australia. Data processing will be performed by TGS using its proven proprietary broadband technology, Clari-FiTM.

"This survey extends TGS's current 3D data coverage in an important hydrocarbon-rich region and positions TGS well in relation to future expected exploration activity from our clients," commented Stein Ove Isaksen, Senior VP Eastern Hemisphere for TGS.

As part of this cooperation, TGS has entered into joint venture arrangements with Dolphin relating to future sales from Dolphin's planned 15,000 km2 North Carnarvon 3D survey over the North West Shelf.