Overview

• Resolution 397/2025 published today formalizes the award to Transportadora de Gas del Sur for the Tramo I works between Tratayén and Salliqueló.
• The project adds 14 million cubic meters per day, raising capacity to 35 MMm3/d through new pipeline sections and three compressor stations totaling 90,000 HP.
• Officials estimate more than $700 million in annual foreign-exchange savings and roughly $500 million in fiscal benefit by reducing LNG and liquid-fuel imports.
• The tender includes an option for additional capacity in exchange for ceded capacity reservations and use of Enarsa’s existing infrastructure.
• The expansion is expected to spur about 20 new wells in Vaca Muerta and over $450 million in conditioning investments, and TGS was reported as the sole bidder in the July 28 process.