TGS ASA

Regulatory Filings • Jan 15, 2026

TGS Announces New OBN Multi-client Survey in the Gulf of America

TGS Announces New OBN Multi-client Survey in the Gulf of America

OSLO, Norway (15 January 2026) - TGS, a leading provider of energy data and

intelligence, is pleased to announce APEX 1, a first-of-its-kind, next-

generation multi-client long-offset Ocean Bottom Node (OBN) acquisition campaign

in the Gulf of America. Node deployment for APEX 1 commenced in December 2025,

and acquisition is expected to be completed in late Q2 2026. Early products are

expected in Q3 2026 and final data delivery Q4 2027.

APEX 1 sets a new benchmark for large-scale long offset multi-client seismic by

deploying a denser node grid than previous ultra-long offset OBN programs and by

being designed as a stand-alone exploration dataset, without reliance on

underlying streamer seismic coverage.

APEX 1 is enabled by TGS' Gemini(TM) enhanced frequency source and leverages the

TGS' deep expertise in long-offset OBN acquisition, processing, and Dynamic

Matching FWI (DM-FWI). The combination of dense node spacing, ultra-long

offsets, and advanced imaging workflows is designed to deliver a step-change in

subsurface resolution, velocity accuracy, and geological confidence for

exploration and appraisal.

This survey creates a highly flexible, future-proof exploration dataset that

supports a wide range of geological objectives. The approach opens new

opportunities for operators to deploy one of the industry's most powerful

exploration tools, not only in the Gulf of America, but also in other offshore

basins worldwide.

The project is supported by industry funding.

Kristian Johansen, CEO of TGS, commented: "TGS continues to push the boundaries

of what is possible in multi-client seismic. APEX 1 is the result of

collaboration across the entire company, from acquisition and imaging to

commercial and technology teams, and reflects our ability to listen to our

customers and respond with innovative, high-impact solutions. At a time when

efficiency, data quality, and decision confidence matter more than ever, APEX 1

demonstrates TGS' commitment to delivering unmatched value and reinforcing our

position as the leading innovator in seismic technology. We are proud of what

this project represents today and excited about the opportunities it unlocks for

our customers globally."

For more information, visit TGS.com or contact:

Bård Stenberg

VP IR & Business intelligence

Mobile: +47 992 45 235

investor@tgs.com

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/).

Forward Looking Statement

All statements in this press release other than statements of historical fact

are forward-looking statements, which are subject to a number of risks,

uncertainties and assumptions that are difficult to predict and are based upon

assumptions as to future events that may not prove accurate. These factors

include volatile market conditions, investment opportunities in new and existing

markets, demand for licensing of data within the energy industry, operational

challenges, and reliance on a cyclical industry and principal customers. Actual

results may differ materially from those expected or projected in the forward-

looking statements. TGS undertakes no responsibility or obligation to update or

alter forward-looking statements for any reason.