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Mexico Launches Trión Ultradeepwater Oilfield Development as PemexWoodside Project

Woodside, as operator, moves from planning to offshore installation this year to target first production in 2028.

Overview

  • A ceremony at the Port of Altamira marked the formal start of activities, highlighted by a symbolic signing of a wellhead to be installed on the seabed.
  • The development is a partnership with Pemex holding a 40% stake and Woodside Energy serving as operator.
  • Total approved life‑of‑project spending stands at about $10.4 billion, with authorities estimating roughly $10 billion in taxes and royalties over a contract running to 2052.
  • Trión is Mexico’s first ultradeepwater field, located about 180 kilometers offshore in roughly 2,550 meters of water.
  • Project execution was reported near 50% complete by the end of 2025, with the FPU hull Tláloc, the FSO Chalchi, and subsea equipment advanced, as drilling and marine installations proceed through 2026 toward a planned peak near 100,000 barrels per day.