Asker, Norway (5 December 2011) - TGS announces that it has signed a letter of award with Dolphin Geophysical to charter the 12 streamer new build vessel,  M/V Polar Duchess, for  3D multi-client projects in Europe during the 2012 summer season.  The charter is expected to begin during first half of April and will last for approximately six months.  
The details of the individual projects to be completed under this charter will be announced separately.