Trion is a conventional oil development located in ultra-deepwater in Mexico and is operated by BHP Billiton Petroleum (Mexico). Discovered in 2012, Trion lies in block AE-0092-Cinturon Subsalino-10 and AE-0093-Cinturon Subsalino-11, with water depth of around 8,515 feet.

The project is currently in feed stage and is expected to start commercial production in 2026. Final investment decision (FID) of the project will be approved in 2022. The development cost is expected to be $8,333 m. The Trion conventional oil development will includes FPU.

Field participation details

The field is owned by BHP and Petroleos Mexicanos.

Production from Trion

Production from the Trion conventional oil development project is expected to begin in 2026 and is forecast to peak in 2027, to approximately 1,00,075 bpd of crude oil and condensate and 90 Mmcfd of natural gas. Based on economic assumptions, the production will continue until the field reaches its economic limit in 2049.

Remaining recoverable reserves

The field is expected to recover 440.29 Mmboe, comprised of 385.97 Mmbbl of crude oil & condensate and 325.94 bcf of natural gas reserves.

Contractors involved in the Trion conventional oil field

Some of the key contractors involved in the Trion project as follows.

Design/FEED Engineering: DORIS Engineering and McDermott International

Other Contractors: BW Offshore, Det Norske Veritas Holding, Houston Offshore Engineering, John Wood Group and Oceaneering International


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.