An official study doubles the shale giant’s recoverable oil — a century of production — as TGS launches $3bn, Vista drills 100 wells a year, and the basin mobilises behind the $50bn filing

The Hispano-Luso Report

The announcement came from the government’s own energy chief, at the opening of the AmCham Energy Forum in Buenos Aires, and it redraws the map this Report has spent a month covering: Vaca Muerta’s recoverable oil resources have doubled. A new study by the Argentine Institute of Petroleum and Gas (IAPG) puts the figure at 30 billion barrels — 30,000 million, treinta mil millones — equivalent, at current rhythms, to around a hundred years of production. The basin that already carried Argentina’s $50 billion LNG ambition, its record crude exports and half this masthead’s recent watch-list just told the world it is twice the prize anyone had priced.

The number, handled precisely

The tongs first, because a number this large deserves them. This is a resource estimate, not a reserves booking: «recoverable» describes what the rocks are believed to hold and technology can reach — it is not oil that has been drilled, financed, or scheduled, and resource studies are revised in both directions. The study’s provenance is the industry’s own institute, announced by a government with every incentive to announce it — the fifth check hums, as it always does when good news arrives at a podium. And «a century of production» is arithmetic, not prophecy: divide the estimate by today’s output and you get a poetic quotient, not a plan. What the number does establish, credibly, is that the geological question is closed. As TotalEnergies’ Argentina chief put it at the same forum, the basin is at perhaps 15-20% of its development — the debate has moved from whether the treasure exists to whether the surface can be built fast enough to lift it.

The mobilisation

Which is why the rest of the forum mattered more than the headline number — because the surface, this week, visibly started being built. TGS’s $3 billion-plus NGL project is launched — not planned, launched: chief executive Oscar Sardi confirmed that purchase orders for all the project’s critical equipment have been issued, with turbines and modules already in manufacture, and 93% of the plant’s capacity contracted before a foundation is poured. The project — a hundred kilometres of new pipelines at Tratayén, processing capacity rising to 43 million cubic metres a day, and a liquids line running from the shale to a new separation complex at Bahía Blanca — will recover the propane, butane and gasoline currently burned invisibly inside the gas stream for want of processing, converting them into three million tonnes of exports and $1.2 billion of foreign currency a year, with 4,000 direct jobs in the building. Alongside it, TGS’s expansion of the Perito Moreno pipeline is 30% complete, due on 1 May 2027 — some $3.8 billion committed by one midstream company alone. In this Report’s vocabulary: steel ordered is the moment pledges stop being pledges.

The oil engine

The production side matched the midstream’s tempo. Vista — the basin’s largest crude exporter, whose shareholder register acquired a certain Silicon Valley sparkle this month — laid out its next phase: a platform of 156,000 barrels equivalent a day now, $1.8 billion of investment annually through 2027-28, drilling 100 to 110 wells a year, targeting 185,000 barrels in 2027, 208,000 in 2028 and around 250,000 by 2030. Two details deserve the attention of this Report’s more operationally minded readers. First, the competitive frame: Vista’s operations director was blunt that the basin fights for capital «in international markets» — against the Permian itself — and must win on cost. Second, how it’s winning: the company moved its sand-washing plant inside its operations, running wet sand straight from local pits to the frac fleets with no drying stage — an innovation it is now patenting that halved the logistics cost of sand, the single heaviest freight item in shale. Regular readers of this comment section will recognise the theme. And the export horizon widens: cargoes have gone to Singapore, Australia and Malaysia, with the Vaca Muerta Sur pipeline soon enabling VLCC-class loading — two-million-barrel ships, the size that reaches India’s refineries.

Tenaris, meanwhile, is attacking the basin’s tightest constraint — rig availability — bringing a new drilling-while-casing rig to Argentina in 2027 that builds the well as it drills, on top of $240 million already invested in local frac and coiled-tubing services, importing two decades and $20 billion of US shale experience.

The honest ledger

The counterweights, in their standing place. Resources are not reserves, and reserves are not cash flow — the 30 billion becomes real one financed well at a time. The basin’s own executives name the constraints: infrastructure, costs, rig availability, and above all capital that must be won against the Permian on merciless terms. And the week’s sharpest sentence came as a warning, not a boast — TotalEnergies’ country chief, defending the RIGI while glaring at the fine print: «When we go looking for capital, what they ask us for is predictability. We cannot have the RIGI on one side and add taxes on the other, because everyone thinks they deserve a bigger slice.» The investment wars, spoken from inside: the statute is necessary; the statute is not sufficient; and the surest way to lose a century of oil is to tax the first decade of it.

The scoreboard

Hold the fortnight’s two Argentine numbers side by side and the story tells itself: $50 billion filed at the RIGI’s gate for the gas future — and now 30 billion barrels confirmed beneath the oil present, with the supporting cast already pouring money at the ground: TGS’s turbines in manufacture, Vista’s hundred wells a year, Tenaris’s rig on the water in 2027. The pledge column and the steel column, for once, moving together. The watch-list takes its dates — the RIGI’s ruling, Perito Moreno’s May 2027 delivery, Vaca Muerta Sur’s first VLCC — and the file notes what the forum’s honest men kept repeating: the treasure is proven, the constraint is everything above it. Twice the barrels; the same politics. Watch the surface.

The Hispano-Luso Report tracks the Spanish- and Portuguese-speaking business news that English-speaking coverage overlooks — analysed beyond the English-language headlines. Sources: Bloomberg Línea, AmCham Energy Forum, IAPG, company statements.