TGS - Natural gas liquids (NGL) project, Tratayén - Bahía Blanca
The largest gas-liquids project in Argentine history: a 2.7 M t/yr C3+ fractionation plant and a 573 km/20'' pipeline to Bahía Blanca. It monetizes the liquids from Vaca Muerta gas.
The projectwhat it is, the route, the owners, the works and the contractors
Who owns it
Transportadora de Gas del Sur (TGS) verif · Mar 11, 2026 ↗
The works, milestone by milestone
We have not built this project’s timeline. Dated milestones with their source close it.
Who already has a contract
The project has been announced and has no RIGI accession resolution yet. Construction awards come later.
How to supply itwhere to register, what they ask for and what they will buy
What it will need and has no supplier for yet
Propane and butane storage and logistics in the window before 2029
highThe project does not come on stream until 2029 or 2030, but the rich gas that will feed it is already being produced: today the chain exports as gas a value that is worth far more downstream. That time gap is the opening, and it is identified in our own midstream analysis: fractionation, propane and butane storage and LPG logistics in the interim window. Whoever builds capacity now uses it during the years when the fractionation plant does not yet exist, and afterwards is positioned as back-up capacity when it starts up.
Pressure vessels and storage spheres fabricated locally
mediumFractionating 2.7 million tonnes of liquids a year requires pressurized and cryogenic tankage: spheres, tanks and pressure vessels with a fabrication code, qualified welding and certified non-destructive testing. It is the highest rung of metalworking and it is exactly where local supply falls short: the province measures that only 27% of contracting goes to certified Neuquén firms against the 60% the rule requires, and pressure vessels are among the first items to be imported. The window is the project's procurement decision, not its operation.
Route and easement management for the pipeline to Bahía Blanca
mediumThe pipeline taking the liquids to Bahía Blanca crosses hundreds of kilometers and more than one jurisdiction, and each stretch is a separate agreement: right of way, crossings of roads, railways and watercourses, permits province by province and compensation to the surface owner. It is pure management work, prior to the first weld, that conditions the entire schedule and that nobody quantifies on the niche map. The window opens with the final investment decision and closes before construction.
- How to become a supplier — We have not built this project’s entry map. It is our gap, not a prohibition: it closes by opening the provincial register and the operator’s single window.
- What it will buy, and when — We have not built this project’s phase → demand chain: its schedule still has to be crossed with the province’s catalog of markets and trades.
Get on board the takeoff
Tell us what you are looking for and we will reply. This is what we work on: proyectos RIGI, proveedores y datos verificados de Neuquén.
What it leaves in Neuquénjobs, works, taxes, promises and the outlook
The works that stay behind
The project has been announced and has no RIGI accession resolution yet. Permanent works are documented once construction starts.
What it already pays in taxes and royalties
The project has been announced and has no RIGI accession resolution yet. Royalties and production taxes begin with operation.
Who promised what
We have not surveyed the public promises about this project. A dated, verifiable commitment with its source closes them.
What could stall itrisks and how to track them
- What could stall it — We have not documented this project’s risks. An identifiable vector with its source closes them.
- How to tell whether it is advancing — We have not defined this project’s indicators: what observable fact marks its progress still has to be identified.
How we verified thisthe act, the gaps and the sources
The RIGI act, in detail
The project has been announced and has no RIGI accession resolution yet. The instrument is published in the Boletín Oficial once the Committee approves the accession.
What we could not confirm
There are 1 in this project. Each says why it could not be confirmed and what it would take to close it.
H-01When construction starts and when operation begins+
The schedule of a RIGI project is read in the recitals of its admission resolution, and this project has no resolution published in the Official Gazette yet: it has been filed or announced, not approved. What circulates in the press are tentative company dates, with no act fixing them.
