For two decades, Bolivia was Brazil’s gas cushion. The Gasbol pipeline once delivered up to 30 million cubic meters per day, underwriting supply security in a Petrobras-dominated market. Today, flows are closer to single digits. The contract expires in 2026. Production continues to decline. The insurance policy is running out.
Argentina looks like the obvious replacement. Vaca Muerta has scale, improving productivity and export ambition. Brazilian officials have floated imports of up to 30 million cubic meters per day by 2030. Yet geology is not the constraint — logistics are. Routing Argentine gas through Bolivia adds roughly $1.90 per MMBtu in transit fees. New pipelines would require billions in capital and political coordination rarely seen in South American infrastructure. Molecules may travel, but they do not travel cheaply.
Meanwhile, Brazil’s pre-salt offers a seductive narrative of abundance. Rota 3, Raia and Sergipe-Alagoas Deepwater promise to lift domestic supply into the early 2030s, potentially turning the Southeast structurally long. But associated gas depends on oil development cycles. At lower Brent prices, capital flows to oil barrels before gas molecules. After the mid-2030s, natural decline looms. The surplus window may be shorter than investors assume.
The risk, then, is not absolute scarcity. It is deliverability. Brazil lacks meaningful storage and remains constrained by regional bottlenecks. The South is tight even when the Southeast looks long. LNG, not domestic production, remains the marginal balancing supply — and the effective price ceiling. The end of Bolivian gas does not herald crisis. It ushers in a structurally more volatile market, where flexibility matters more than reserves.