TGS Launches APEX 1: Ultra-Long Offset OBN Survey in Gulf of America

Event summary

  • TGS began deploying Ocean Bottom Nodes for APEX 1 in December 2025, with completion expected by Q2 2026.
  • The survey uses denser node spacing than prior programs and operates independently of streamer seismic coverage.
  • Early data products are scheduled for Q3 2026, with final delivery in Q4 2027.
  • Project funded through industry partnerships.

The big picture

TGS's APEX 1 represents a strategic push to dominate high-resolution seismic data services, addressing growing industry demand for more accurate subsurface imaging. The project underscores the shift toward standalone exploration datasets as operators seek greater independence from legacy seismic coverage. Success could reinforce TGS's position as a technology leader in energy intelligence.

What we're watching

Technology Adoption
How quickly operators will integrate APEX 1's ultra-long offset capabilities into their exploration strategies.
Data Quality Impact
Whether the denser node grid and advanced imaging workflows deliver measurable improvements in subsurface resolution.
Market Expansion
The pace at which TGS can replicate this model in other offshore basins globally.