Petroleum Geo-Services ASA (PGS) reports its business in two segments: marine, which consists of streamer seismic data acquisition, marine MultiClient library, data processing, technology and reservoir consulting, and onshore, which consists of all seismic operations on land, in shallow water and transition zones, including onshore MultiClient library. During the year ended December 31, 2008, the Company launched a 3 dimensional (3D) GeoStreamer survey. Atlantic Explorer started on a MultiClient 3D survey, which covered approximately 300 Offshore Continental Shelf (OCS) deepwater blocks. The Company owns, 20 offshore seismic vessels, 10 onshore crews on three continents, 23 data processing centers and EM acquisition on land, in shallow and deep water. PGS has offices in 30 countries with regional centers in London, Houston and Singapore.