The Gasbol — the Brazil-Bolivia gas pipeline — reshaped southern Brazil’s gas market in the 1990s. Petrobras’s supply agreement with Bolivia’s YPFB helped underpin investment, create industrial demand and connect the region to what, for years, looked like an abundant source of gas. Bolivian gas has not disappeared, but production has been declining, forcing supply contracts to adjust to lower availability.
That is what gives Compass’s project in Rio Grande a significance that goes beyond the construction of another terminal. Edge, a Compass-controlled company, has signed a memorandum with the Rio Grande do Sul state government to develop an onshore LNG terminal that would be integrated with the São Paulo Regasification Terminal in Santos. The project could involve up to R$1 billion in investment and is aimed primarily at expanding supply to large industrial consumers in a state that still faces constraints in accessing additional gas through existing infrastructure.
Rio Grande could therefore begin to give southern Brazil something Gasbol provided three decades ago: a fresh path for market expansion. This time, however, the next cycle would not have to rely on a single molecule or a single pipeline. Alongside Edge’s LNG, Sulgás is already injecting biomethane into its network and is developing a hub in Esteio designed to receive renewable gas from multiple producers. The distributor plans to invest R$163.7 million in 2026 to expand its infrastructure and diversify supply sources.
There is also a third piece waiting across the border: Vaca Muerta. Rising Argentine production could make Rio Grande do Sul one of the natural gateways for additional gas into Brazil. Brazil’s Energy Research Office, or EPE, sees deeper integration with Argentina as a way to diversify supply in the South, which still depends in part on Bolivia, and potentially displace some LNG imported from more distant markets. The original Uruguaiana-Porto Alegre pipeline was never completed, but stronger Argentine production and renewed Brazilian interest have put that route back on the map.
That is why Compass’s terminal should not necessarily be seen as a rival to Vaca Muerta. It could instead become one building block of a broader southern gas hub: LNG entering through Rio Grande, Argentine gas arriving across the border, biomethane produced locally, and Sulgás’s network connecting those sources to consumers. It is still too early to say that such a market will emerge at that scale. Edge’s project still depends on a final investment decision and regulatory approvals, and Compass itself has said capital deployment will follow the pace of commercial development.
That may be the most encouraging signal for the region since Gasbol. In the 1990s, a major piece of infrastructure brought southern Brazil a new source of gas. Rio Grande now has the potential to help build something even more valuable: a market where multiple sources compete for space, strengthen security of supply and allow availability to grow alongside demand.
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