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Oil & Gas in Mercosur and South America

Oil and gas in Mercosur and South America are not only about reserves. The strategic question is whether upstream resources, pipelines, LNG, industrial demand, refining systems and logistics can be aligned in ways that produce reliable market and export outcomes.

Industry briefing  ·  Updated May 2026  ·  Econosur

Oil and gas activity in Mercosur and South America with offshore production, pipelines, LNG and regional energy infrastructure
Oil and gas activity across Mercosur and South America. Image: Econosur.
Quick answer

Oil and gas remain strategic sectors in South America because they connect energy security, export capacity, industrial demand and infrastructure investment.

Argentina and Brazil are the main drivers, but they follow different logics. Argentina is shaped by Vaca Muerta, pipelines and gas monetization. Brazil is shaped by offshore and pre-salt production, deepwater expertise and industrial scale. The real issue is not only resource size, but how effectively the sector is connected to logistics, processing and market execution.

2nd / 4th
Vaca Muerta’s global ranking in shale gas and shale oil resources
573 km
Length of the first section of the Néstor Kirchner Gas Pipeline
81%
Share of Petrobras total production coming from pre-salt in 2024
308 Tcf
Estimated technically recoverable shale gas resources in Vaca Muerta

What is the market signal?

Oil and gas are once again central to the South American industrial and geopolitical story. The region is not only discussing production volumes, but also pipelines, LNG, fuel systems, offshore technology, petrochemicals and the role of hydrocarbons in broader national development strategies.

That makes oil and gas more than a commodity sector. It becomes an infrastructure and market-execution question: which countries can turn hydrocarbons into stable energy systems, export income and industrial value?

The answer differs sharply across the region. Argentina’s story is tied to unconventional shale and domestic transformation. Brazil’s story is tied to offshore scale, pre-salt leadership and mature energy operations. Paraguay and Uruguay matter more through fuels, logistics, river systems, ports and regional business context.

"The real test is not whether the region has hydrocarbons. The real test is whether oil and gas can be converted into reliable infrastructure, industrial energy and export capacity."

Why is oil and gas still strategic?

Hydrocarbons still matter because they sit at the center of several systems at once: electricity, industry, fertilizers, petrochemicals, transport, export earnings and fiscal stability. Even as energy transition narratives grow, oil and gas remain deeply embedded in how economies operate.

In Mercosur and South America, this strategic value becomes even more visible because the sector is directly tied to infrastructure gaps and growth bottlenecks. Production alone does not guarantee value. Pipelines, storage, terminals, processing, port access and service ecosystems determine whether the hydrocarbons story becomes commercially durable.

That is why the oil and gas sector must be read as a connected system rather than a reserve story.

Oil and gas become strategic value only when reserves, infrastructure and market access align. A strong resource without transport, processing or predictable demand remains only a partial economic asset.

How do country roles differ in the regional oil and gas map?

Argentina

Argentina’s oil and gas logic centers on Vaca Muerta, unconventional shale, pipeline expansion, gas monetization, LNG ambitions and the question of whether hydrocarbons can help stabilize the broader economy.

Brazil

Brazil is the region’s offshore heavyweight. Its strength comes from deepwater production, pre-salt development, refining, engineering depth and the ability to connect hydrocarbons with industrial scale and long-term energy systems.

Paraguay

Paraguay does not drive the upstream story, but it matters through river logistics, fuels trade, industrial energy use and wider regional transport corridors that influence market access and supply chains.

Uruguay

Uruguay plays a smaller direct upstream role, but remains relevant through port logic, fuels infrastructure, institutional stability and as part of the Southern Cone market environment.

Chile

Chile matters more through regional energy demand, industrial consumption, LNG import logic and cross-border market implications than through large-scale oil production of its own.

Regional layer

The oil and gas map is shaped not only by fields and basins, but by pipelines, export terminals, roads, ports, river systems, storage, service hubs and industrial users across South America.

Which oil and gas questions matter most?

Oil and gas analysis in Mercosur and South America should not stop at resource rankings or production headlines. The relevant questions are operational, infrastructural and commercial.

Where does the real production potential sit?

Production potential matters most where resource quality can be paired with infrastructure and demand. Vaca Muerta and Brazil’s pre-salt are strong examples, but they follow different technical and economic models.

What matters beyond reserves?

Reserves alone do not create value. Pipelines, export routes, service capacity, financing, stable regulation, processing systems and industrial demand determine whether hydrocarbons become usable market assets.

How do pipelines and LNG change the story?

Midstream infrastructure often decides whether upstream production can scale. Pipelines reduce bottlenecks, LNG opens export possibilities and both can change the commercial meaning of a resource base.

Why do logistics and service clusters matter?

Hydrocarbon projects need roads, yards, transport, specialized labor, storage, equipment, maintenance and local business ecosystems. Places like Añelo show that operational reality sits well beyond the wellhead.

What separates announcement from execution?

The gap between ambition and operation is often the defining risk. Major resource stories attract capital and headlines, but only sustained infrastructure execution turns the sector into durable industrial and export value.

Which subsectors are covered by this industry theme?

Upstream oil and gas

Onshore and offshore production, unconventional shale, pre-salt development, field operations and basin economics.

Midstream infrastructure

Pipelines, compression, gathering systems, storage, terminals and the transport layer that connects production with markets.

LNG and gas monetization

Gas export options, liquefaction logic, domestic gas use, industrial fuel switching and market access for large gas resources.

Refining and fuels

Refineries, fuels systems, downstream distribution and the industrial and consumer uses that tie hydrocarbons to the wider economy.

Energy services and equipment

Oilfield services, drilling support, engineering, maintenance, transport, measurement, control systems and supplier ecosystems.

Industrial demand and petrochemicals

Fertilizers, petrochemicals, manufacturing energy use and the broader industrial layer that determines local value creation.

Which business opportunities arise around oil and gas?

This sector is relevant for operators, service companies, pipeline contractors, LNG specialists, engineering firms, industrial suppliers, logistics companies, storage providers, measurement and control vendors, chemical firms and investors.

The strongest opportunity is often not only in extraction itself. It may sit in the surrounding execution layer: compression, valves, transport, roads, camps, water systems, terminals, industrial maintenance, measurement technology, safety systems and energy services.

For international companies, the key question is whether they are entering a reserve story, an infrastructure build-out, a service market or a downstream industrial opportunity. These layers are connected, but they are not identical.

How does Econosur analyze this sector?

Econosur analyzes oil and gas as a market-execution system rather than as a simple reserve story. The focus is on how resources, infrastructure, industrial demand, logistics, regulation and project reality interact across Mercosur and South America.

This means separating three layers:

Resource layer: basins, reserves, shale, offshore production and the underlying hydrocarbon potential.

Infrastructure layer: pipelines, terminals, roads, ports, storage, service hubs, LNG systems and operational capacity.

Market layer: domestic energy demand, export logic, industrial use, regulation, financing and execution credibility.

The strongest opportunities appear where these three layers reinforce each other. The largest risks appear where the resource story is strong but the infrastructure or market layer remains weak.

Which Econosur insights connect to this sector?

These Econosur analyses connect directly to the oil and gas theme:

Which country pages are connected?

This industry theme connects to the main Econosur country pages:

Which related industry themes should be read next?

Oil and gas connect directly to several other Econosur industry themes:

Questions this page answers

This industry page is structured for readers, search engines and AI answer systems looking for a concise market view of oil and gas in Mercosur and South America.

  • Why does oil and gas matter in Mercosur and South America?
  • Why is Vaca Muerta strategically important?
  • How do Argentina and Brazil differ in oil and gas logic?
  • What matters beyond reserves and production?
  • Why are pipelines and LNG central to the sector?
  • How do logistics and service clusters shape oil and gas execution?
  • What role does Brazil’s pre-salt production play?
  • How do oil and gas connect to industrial demand and exports?
  • Which business opportunities arise around oil and gas infrastructure and services?

FAQ

Why does oil and gas matter in Mercosur and South America?

Oil and gas matter because they shape energy security, industrial competitiveness, fiscal revenue, export capacity and infrastructure investment across the region. The sector is strategic not only for upstream production, but also for pipelines, LNG, refining, petrochemicals and regional power demand.

Which countries are most relevant for this sector?

Argentina and Brazil are the main oil and gas drivers in the southern part of South America. Argentina stands out through Vaca Muerta and gas infrastructure, while Brazil leads through offshore pre-salt production, deepwater expertise and industrial scale. Paraguay and Uruguay matter more through logistics, fuels trade, market access and the broader regional business environment.

Why is Vaca Muerta so important?

Vaca Muerta matters because it combines world-class unconventional shale gas and shale oil resources with the potential to reshape Argentina’s industrial energy base, export profile and infrastructure priorities. But its long-term significance depends on transport capacity, investment continuity, service ecosystems and market execution.

How does Brazil differ from Argentina in oil and gas?

Brazil’s oil and gas logic is centered on offshore and pre-salt production, deepwater operations, refining and industrial scale. Argentina’s logic is more strongly linked to unconventional shale, onshore infrastructure, pipelines, LNG ambition and the challenge of turning resource potential into broader economic stabilization.

What matters beyond reserves and production?

Reserves and production are only one layer. Real outcomes depend on pipelines, export routes, port access, LNG capacity, refining systems, regulation, financing, energy services, local supply chains and the ability to connect upstream resources with downstream users.

Why are logistics and infrastructure central to oil and gas?

Oil and gas projects become strategically valuable only when they are connected to transport, processing and export systems. Pipelines, terminals, roads, ports, river logistics, storage, compression and service hubs determine whether resources can become reliable market output.

How does Econosur analyze this sector?

Econosur analyzes oil and gas as a market-execution system rather than as a simple reserve story. The focus is on how resources, infrastructure, industrial demand, logistics, regulation and project reality interact across Mercosur and South America.

Oil Gas Vaca Muerta Pre-Salt Mercosur South America Pipelines LNG Energy Infrastructure
Marcus A. Volz

Marcus A. Volz

Berlin-born economist based in Argentina since 2006. Founder of Econosur. His analysis focuses on South American market signals, infrastructure shifts, sector execution and the business implications behind regional investment narratives.

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