See the energy at TGS.com

© 2014 TGS-NOPEC Geophysical Company ASA. All rights reserved.

Northwest Africa Atlantic MarginThe Northwest Africa Atlantic Margin program is a joint venture between TGS and Dolphin Geophysical Ltd. It includes 17,764 km of 2D multi-client seismic, gravity and magnetic data located offshore Senegal, The Gambia, Guinea Bissau, Guinea and the AGC area, including four newly defined AGB blocks, that is available now. The program is currently being extended northward to include an additional 11,212 km offshore Mauritania. TGS is interpreting the data to provide the industry with a consistent regional understanding of the area.

The program provides long offset regional new vintage multi-client data in an area with known hydrocarbon reservoirs and available open acreage. The seismic data is processed through Pre-stack Time Migration, utilizing the latest technology and benefiting from TGS’ extensive worldwide processing experience, including a recent 3D multi-client project in The Gambia.

The Northwest Africa Atlantic Margin gives the hydrocarbon explorer the opportunity to review a large region of known hydrocarbon potential and the opportunity to use multi-discipline geophysical data that benefits from TGS’ experience and utilization of latest technologies.

See the energy at TGS.com

© 2014 TGS-NOPEC Geophysical Company ASA. All rights reserved.

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TGS-NOPEC has used its best efforts to produce this map free of errors, utilization of same shall be at the sole risk of the user.TGS-NOPEC assumes no liability or responsibility for reliance placed thereon.

N:\Public\GIS\Arc Map Documents\Africa+Europe+ME\_Basemaps\NWAAM Basemap.mxd August 24, 2015

NORTHWEST AFRICA

Projection: WGS 1984 UTM Zone 28N

MULTI-CLIENT 2D & 3D SEISMIC SURVEYS

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_̂ TGS Deepwater Borehole Data Available

TGS 2D Seismic Survey (NWAAM)

Bathymetry (Meters)

TGS Aeromag (Sierra Leone)

TGS 2D Seismic Surveys

TGS 3D Seismic Survey

0 20 40 60 8010

Kilometers

For more information, contact TGS at:

TGS Tel (UK): +44 208 339 4200 Tel (US): +1 713 860 2100 Email: amesales@tgs.com

Dolphin Tel: +44 (0) 7920 713 587 Email: ian.edwards@dolphingeo.com