Argentina Ends 2002 Gas Export Carve-Out

Argentina scraps 2002 gas carve-out to price Vaca Muerta for export

Milei's DNU 580/2026 unifies Perito Moreno pipeline tariffs, ending a 24-year exception and clearing the way for firm gas exports to Brazil and Chile.

On July 8, 2026, Argentina's Official Gazette published Decree of Necessity and Urgency 580/2026, unifying transport tariffs on the Gasoducto Perito Francisco Pascasio Moreno and repealing a 2002 emergency-era regime that had shielded dollar-denominated gas-export contracts from Argentina's asymmetric pesification. The move quietly repositions Argentina as a firm exporter to the Southern Cone rather than a distressed importer — because a single, coherent tariff is the precondition for the 15-year, dollarised capacity contracts that Vaca Muerta producers need to sell gas to Brazil, Chile and, eventually, world LNG markets.

The decree instructs the newly-created Ente Nacional Regulador del Gas y la Electricidad (ENREGE) to set a single reference price for the pipeline's base capacity, using the average of the current contracted price and the incremental price awarded in the ongoing expansion tender, weighted by volume, according to BAE Negocios. ENREGE may phase in the merger to avoid tariff shocks. The government invoked "the immediate need to implement the Reconfiguration of the Gas Transport System" under the standing energy emergency to justify ruling by DNU rather than statute, as Ámbito reported.

What the decree actually kills

The instrument being repealed is DNU 689/2002, signed by then-president Eduardo Duhalde five months after Argentina's default. That decree carved gas-transport tariffs — and specifically contracts for transport and gas sales whose price had originally been agreed in foreign currency — out of the Emergency Law that had pesified the rest of the economy at a one-to-one ratio. Duhalde's exception preserved the export logic of the 1990s privatisations: producers who had signed dollar contracts to ship gas to Chile continued to be paid in dollars for transport, insulated from the peso's collapse.

The government now argues that carve-out is obsolete. The considerandos of DNU 580/2026, quoted by Comercio y Justicia, state that the exceptional treatment "responded to particular circumstances derived from the emergency regime and pesification of obligations in force at the moment of its issuance, which have now been overcome," and that maintaining it for export-linked contracts "generates distortions in the prices and tariffs paid by shippers." Translated: the two-tier system was a subsidy — one class of dollar-indexed shippers paid a legally protected rate while everyone else was renegotiated on the regulator's terms.

Under the new architecture, all shippers on the Perito Moreno face one price, set by ENREGE, referenced to the winning bid of the 14 MMm³/d expansion tender. The outlet El Destape notes that this closes the last remaining pocket of pesification-era asymmetry in the gas chain, 24 years after it was drawn.

Why this is a Vaca Muerta story, not a tariff story

The Perito Moreno is the artery. It moves gas from Tratayén, in Neuquén, across Río Negro, La Pampa and Buenos Aires to San Jerónimo in Santa Fe. Argentina's government, in a November 2024 primary release under Argentina.gob.ar, declared Decree 1060/2024 of national public interest to expand the pipeline's Tramo I from 21 to 35 million cubic metres per day, feeding the Litoral and Greater Buenos Aires. Energía Argentina's tender GPM 01/2025 lifts the ultimate design capacity to 40 MMm³/d, per the Argentine consulate in Belo Horizonte.

That extra 14 MMm³/d is not, strategically, for Argentine households. Domestic winter demand is already covered when both plants (Tratayén and Salliquelá) run flat out at 24 MMm³/d, according to the government's own briefing. The incremental molecules are aimed at three destinations: displacing imported LNG and diesel in summer power generation, feeding the reversed Gasoducto Norte to sell into Bolivia and Brazil, and — over the medium term — supplying the floating LNG plants Southern Energy and Argentina LNG plan to anchor in the Gulf of San Matías. The Real Instituto Elcano projects Argentina could earn up to USD 25.4 billion a year in hydrocarbon exports by decade's end, comparable to its agricultural export basket.

The unified tariff removes the last legal reason for producers to keep pricing gas transport as if 2002 had never ended.

The regional power shift buried in a technical decree

Argentina is not merely exporting molecules. It is displacing Bolivia as the Southern Cone's swing gas supplier. Petrobras completed its first pilot import of Vaca Muerta gas in April 2025 via the Bolivian GasBol pipeline, using TotalEnergies molecules routed through YPFB and the Brazilian trader Matrix, as documented by IPEA. Rystad calculates flows will stay under 5 MMm³/d in the 2026/27 summer window, but the direction is set.

Bolivia's leverage collapses in slow motion. The country was still exporting roughly 26 MMm³/d to Brazil in 2006, as the Financial Times reported, at prices renegotiated upward that year by the Morales government. Two decades on, Bolivian production has fallen enough that the Argentine gas import contract lapsed in 2024 and the country pivoted to charging transit tolls — roughly USD 2 per million BTU — on Argentine gas heading into Brazil, per estimates cited by Clarín. The unified Argentine tariff makes that toll harder to sustain: Petrobras CEO Magda Chambriard said publicly at CERAWeek 2025 that Argentine gas must undercut the USD 6.00–6.50/MMBtu it reaches at the Bolivian border. Every peso of "distortion" the new decree removes from Argentine transport pricing is a peso Brazilian buyers do not concede to La Paz.

Chile is the quieter beneficiary. Elcano recalls that Argentina's own 2004 export cuts forced Chile to import LNG at premiums for a decade. A stable tariff on the Perito Moreno, coupled with the reversal works on Gasoducto Norte executed by TGN — which finished the Leones and Tío Pujío conversions using ARS 3 billion of private capital, Clarín reported — restores the credibility Buenos Aires shredded in the mid-2000s.

The primary document tells the winner

The clearest signal of who benefits is in the tender itself. Energía Argentina's Licitación Pública GPM 01/2025, whose bids opened July 7, 2025, requires a USD 5 million bid bond and grants the awardee — a Pampa Energía-led consortium in which TGS holds priority — a 15-year capacity-reservation contract for the entire 14 MMm³/d expansion volume. After 15 years, the assets revert to the state.

The regulator's own record confirms this trajectory. In Resolution 409/2026, the Ente Nacional Regulador del Gas cited Resolution SE 66/2026, which explicitly ordered that base-capacity remuneration on the Perito Moreno be calculated on ENARGAS's provisional November 2025 tariffs, "without prejudice to the measures adopted in relation to the remuneration guidelines foreseen in Decree 1.060/2024, effective from the authorisation of the expansion works." DNU 580/2026 is the missing piece: it operationalises those "remuneration guidelines" by scrapping the last regulatory obstacle — the 2002 dollar-contract exception — and hands ENREGE the pen.

That sequencing matters. The tender was designed on the assumption that a unified tariff would exist by the time expansion capacity comes on stream. Had the government waited for Congress, the private consortium would have priced political risk into the auction and demanded either sovereign guarantees or a higher return. By using a DNU, Milei's team compressed the timeline and locked in bidders on the promise of regulatory coherence — coherence they have now delivered.

The losers

Three constituencies pay. First, holders of legacy 2002-era contracts denominated in dollars: they lose a legal privilege that translated into cheaper transport for gas destined to Chile. Second, Argentine end-users on Camuzzi's grid, whose July 2026 bills already reflect new tariff schedules that Energía 360 reports will lift household costs — the government's staggered phase-in is an acknowledgement of that risk. Third, Bolivia, whose transit position is undercut by every improvement in Argentine domestic logistics.

The subtler loser is the credibility of Congress. DNU 580/2026 is the latest in a chain — DNU 55/2023 declared the energy emergency; Decree 1060/2024 declared the expansion; Resolution SE 66/2026 restructured the transport system — through which Milei's government has rewritten Argentina's hydrocarbon architecture without a single statute. The legality is defensible under the energy emergency framework, but the political fragility is real: a future government could unwind by decree what was built by decree.

What to watch

• ENREGE reference-price resolution (expected Q3 2026): The regulator must now publish the unified tariff formula and any staggered ramp. Watch whether the phase-in extends beyond 12 months — a longer glide path signals distributor lobbying is winning.
• Argentina LNG final investment decision (late 2026): Southern Energy's second liquefaction vessel (MK II) and the Shell-YPF Argentina LNG 2 project both need FIDs this year. A unified pipeline tariff clears one of three remaining regulatory hurdles.
• TGN concession extension (pending, 2028 deadline): Transportadora de Gas del Norte's current concession expires in 2028. Its request to extend to 2038, coupled with the CAF's rumoured USD 500 million loan for the Norte reversal, will determine whether the Vaca Muerta-to-Brazil corridor gets built.
• Brazilian domestic-price ruling: If Petrobras and ANP set a reference price for Argentine imports at or below USD 7/MMBtu at São Paulo, firm 10-year contracts become bankable.

Diplomat View

The Milei government has just done, quietly, what Argentina's energy diplomacy has failed to do for two decades: it has priced its gas as if the country intended to sell it abroad. DNU 580/2026 is a tariff decree only on the surface; underneath it is a bet that a coherent, dollarised regulatory regime is worth more to Vaca Muerta producers than any subsidy the state could still afford. The forecast: firm Argentine gas exports to Brazil cross 10 MMm³/d before winter 2027, and the GasBol reversal ceases being a pilot and becomes a commercial route. What would falsify that call? A Peronist-led Congress striking down the DNU under Law 26.122, a delay in the Southern Energy MK II vessel past 2029, or a Petrobras decision to prioritise pre-salt Rota 3 over Argentine imports. Absent those, the 2002 chapter of Argentine gas policy — asymmetric, defensive, import-driven — closed on July 8. What replaces it is still being written, but for the first time since 2004, it is being written by exporters.

Related coverage: Global Politics.