TGS-NOPEC Geophysical Company provides geoscience data, software and services to energy companies. TGS licenses seismic data worldwide. The company holds one of the industry s largest and newest collections of 2-D and 3-D multi-client data in addition to one of the most extensive online databases of digital well logs. TGS' multi-client library of 2-D and 3-D seismic data includes surveys from mature basins, emerging regions and frontier exploration zones. TGS assists with licensing rounds and the preparation of data packages. TGS subsidiary in Humble, Texas, formerly known as A2D Technologies, provides digital well log related services and software, and is among the industry s leaders in log holdings. TGS is headquartered in Houston, with offshore surveys conducted in more than 24 nations on three continents.