TGS Secures 120-Day Offshore Seismic Survey Contract in Namibia

Norwegian energy data and intelligence company TGS has secured an ocean bottom node (OBN) seismic survey contract offshore Namibia, extending its deep-water acquisition activity in southern Africa. Announced on 12 November 2026, the contract covers approximately 120 days of offshore operations, with a specialist crew scheduled to mobilize during the fourth quarter of 2026. The award comes from an existing customer and provides TGS with additional work visibility into the second quarter of 2027.

The contract involves ocean bottom node technology, which uses seismic sensors positioned on the seabed to record geological information beneath the ocean floor. Unlike conventional streamer surveys, where sensors are towed behind a vessel, OBN surveys collect data from fixed seabed positions, allowing more detailed imaging of complex subsurface structures. The resulting information can support reservoir assessment, field development planning and decisions concerning offshore energy infrastructure.

 

The Namibia award strengthens TGS's forward schedule as the company reports improving demand for ocean bottom node services across the South Atlantic basins. In its third-quarter 2026 operational update, TGS reported an average of 2.2 normalized OBN crews working on contracts, compared with 1.8 during the same period in 2025. The company has also been expanding its seismic activities in the wider Atlantic region, including a 3D survey offshore Brazil and seismic data reprocessing projects in West Africa.

 

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Kristian Johansen, Chief Executive Officer of TGS, said the latest contract provides greater visibility for one of the company's OBN crews into 2027. He also pointed to an improving pipeline of potential projects next year, with activity concentrated in the South Atlantic basins. The company expects the survey data to help its client evaluate further field development opportunities, although it has not identified the customer or disclosed the specific offshore field involved.

 

TGS has not announced the contract's financial value, the precise survey location, or the vessel and equipment configuration for the campaign. The planned mobilization later this year will add to its contracted offshore seismic workload, while the approximately 120-day program will contribute to the company's operations during the transition into 2027.

 

Source: TGS