
Global energy data and intelligence company TGS has secured a 120-day ocean-bottom node (OBN) seismic survey contract offshore Namibia, with operations expected to begin in the fourth quarter of 2026 and continue into 2027.
The Norway-based company announced on Thursday that a deep-water seismic crew was scheduled to mobilise before the end of the year, with the survey expected to run for approximately 120 days.
TGS Chief Executive Officer Kristian Johansen said the contract had been awarded by an existing customer and would support further offshore field development decisions.
“We are very pleased to secure this OBN contract offshore Namibia for a repeat customer, providing visibility for one of our OBN crews into Q2 next year,” Johansen said.
He said demand for OBN seismic surveys was expected to improve in 2027, particularly in the South Atlantic basins, where offshore exploration and development activities continue to attract industry interest.
“There is an improving pipeline of OBN opportunities for 2027, with activity predominantly centered around the South Atlantic basins,” he said.
Johansen said TGS would use its seismic acquisition capabilities to collect subsurface geological data to support the client’s decisions on further offshore field development.
OBN seismic technology involves deploying sensors on the seabed to record seismic signals and generate detailed images of geological formations beneath the ocean floor.
The technology enables energy companies to assess offshore reservoirs, improve their understanding of subsurface structures and make decisions on exploration and field development.
TGS did not disclose the value of the contract, the identity of the client or the specific offshore exploration licence where the survey will be conducted.
The company provides seismic data, technology and intelligence services to energy companies involved in exploration and production activities worldwide.







