TGS and SLB Launch 3D Seismic Campaign in Brazil's Frontier Offshore Basin

## TGS and SLB Drive Exploration Push in Brazilian Frontier Waters Norway's energy data and intelligence company TGS and its joint venture partner SLB, the U.S.-headquartered oilfield services giant, have launched a multi-client 3D seismic survey targeting one of Brazil's frontier offshore basins, according to Offshore Energy. The campaign marks a significant step in unlocking exploration potential in underexplored Brazilian waters, where frontier basins have historically attracted interest from major operators seeking new hydrocarbon discoveries beyond the prolific pre-salt provinces. ### Strategic Significance for Brazil's Upstream Sector Multi-client seismic surveys of this nature serve as a critical first step in de-risking frontier acreage, providing prospective operators with high-resolution subsurface data ahead of licensing rounds or farm-in decisions. By sharing acquisition costs across multiple data licensees, TGS and SLB are able to reduce the financial barrier to exploration while generating commercial returns through data sales to oil companies evaluating the region. Brazil's national oil regulator, the ANP, has in recent years sought to stimulate activity in frontier basins beyond the established Santos and Campos pre-salt areas, and third-party seismic campaigns such as this one are widely regarded as essential catalysts for attracting new investment. SLB brings considerable seismic acquisition and processing expertise to the joint venture, while TGS contributes its established multi-client data library and commercial distribution network — a combination that positions the partnership well to deliver bankable datasets to the market. ### Broader Energy Context The Brazilian seismic push comes amid a broader period of activity in the offshore energy sector. Separately, onshore energy developments in North America continue to advance, with enCore Energy Corp. receiving Bureau of Land Management authorisation to begin construction at its Dewey Burdock uranium project in the United States, and PowerBank Corporation confirming the safe harbour of 23 distributed solar and energy storage projects totalling $242.3 million in construction value across New York and Pennsylvania. While these developments fall outside the maritime domain, they underscore the wider energy industry's drive to diversify supply sources and accelerate project development across multiple fuel types. For the offshore sector, the TGS-SLB seismic campaign in Brazil represents a concrete commitment to frontier exploration at a time when the industry continues to balance near-term production optimisation with longer-term resource replenishment strategies.