TGS Expands Multi-Client Data Library Offshore Mauritania with Over 101,000 Square Kilometers of 3D Seismic Data

Oslo, Norway (April 16, 2025) - TGS, a leading global provider of energy data and intelligence, is pleased to announce the significant expansion of its multi-client data library offshore Mauritania, with the addition of over 101,500 square kilometers of high-quality 3D seismic data.

This expansion adds to the existing library of over 19,000 square kilometers of reprocessed PSDM 3D seismic data and multiple regional 2D seismic surveys. Together, these integrated datasets provide a more comprehensive and nuanced view of the subsurface, helping to refine known plays while revealing new exploration opportunities. This data was released in collaboration with the Islamic Republic of Mauritania.

Early insights are emerging through the combination of regional geological knowledge and detailed mapping of trap trends, spanning from shelf-edge wells to deeper outboard fairways. Notably, evidence of Late Cretaceous channel-fan systems within the basin domain is providing a fresh perspective into the region's hydrocarbon potential.

Mohamed Ould Khaled, the Mauritanian Minister of Energy and Petroleum, declared: "With the extension of our offshore data library with new 3D seismic data, Mauritania is opening the door to a new era of energy exploration. Our rich, underexplored basins and stable investment climate make Mauritania one of the most exciting frontiers for oil and gas. We are ready to work hand in hand with international partners to unlock this immense potential and deliver long-term, mutually beneficial growth."

David Hajovsky, Executive Vice President of Multi-Client, commented, "Aside from greatly expanding the quantity of high-quality multi-client subsurface data in West Africa, the true value of this extensive regional study lies in its ability to contextualize borehole data across the area. By re-evaluating historical exploration results - both successes and failures - exploration teams are better equipped to de-risk future ventures and make informed investment decisions."

TGS remains committed to providing industry-leading subsurface intelligence to support confident exploration across frontier and emerging basins.

About TGS

TGS provides advanced data and intelligence to companies active in the energy sector. With leading-edge technology and solutions spanning the entire energy value chain, TGS offers a comprehensive range of insights to help clients make better decisions. Our broad range of products and advanced data technologies, coupled with a global, extensive and diverse energy data library, make TGS a trusted partner in supporting the exploration and production of energy resources worldwide. For further information, please visit www.tgs.com (https://www.tgs.com/).

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Bård Stenberg

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