According to preliminary estimates the new find in the Cuenca Salina Sureste Basin may contain between 150 and 200 million boe in place.
The drilling programme, for an unnamed international oil company, is expected to commence in 2Q22 for a duration of approximately 150 days.
Talos Energy has said it is "very disappointed" with the decision of Mexico's Ministry of Energy to designate Pemex as the operator of the Zama unit offshore Mexico and will explore all legal and strategic options.
The project includes two blocks, 58 km2 in total, which are located 42 km offshore Mexico in the Gulf of Mexico.
The FPU will be designed for a water depth of approximately 8200 ft (2500 m) and will be located in the Trion Field, approximately 112 miles (180 km) off the Mexican coastline.
Petrofac has completed the sale of its remaining 51% interest in its upstream IES operations in Mexico to Perenco Energies International Limited.
The FPSO will be located in the Area 1 block, approximately six miles (10 km) off the coast of Mexico in the shallow waters of the Campeche Bay.
The deal will see the Blackford Dolphin rig utilised in Mexico for the duration of the work, which is expected to last around 15 months.
Mexico's energy ministry has said that Pemex and Talos Energy have 120 working days to present a unification agreement to jointly develop the Zama reservoir in a way that would maximise its value.