What Petrobras is proposing
At an energy conference in Rio de Janeiro near the end of last month, CEO Magda Chambriard said Petrobras is considering investments to make Brazil fully self-sufficient in diesel. "After the US-Iran war, we began studying options to make Brazil self-sufficient in diesel production, which will likely be confirmed in our 2027-2031 business plan," she said, and she has been repeating that message to investors, customers and peers. Petrobras did not provide a comment in response to the request.
For context, diesel touches daily life across Brazil. About 30% of the working-age population works in farming or trucking, and Petrobras currently supplies roughly 70% of the nation's diesel needs, with the balance imported.
The supply shock and trade shifts
War-linked disruptions have scrambled fuel markets. Russia curbed most diesel exports starting in July after Ukrainian strikes damaged refineries and pushed processing to multiyear lows, tightening supply and driving prices higher. At the same time, speculation swirled that US President Donald Trump might suspend American diesel exports to manage retail prices at home.
He said earlier this week he was looking "very seriously" at a ban, but on Friday he clarified that he had no intention of carrying it out. His comments came just a few hours after the Group of Seven signed on to a release totaling 100 million barrels from emergency oil and diesel reserves to calm the market.
As trade routes realigned, U.S. cargoes became more important for Brazil. Over the first eight months of the year, average daily U.S. diesel deliveries to Brazil totaled the equivalent of 80,400 barrels - an increase of 11% from a year earlier - with U.S. suppliers' share rising to almost 33% from 26%, according to Brazilian Trade Ministry data.
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Domestic flows, politics and scheduled imports
Petrobras' next steps depend heavily on who controls the Palácio do Planato after Sunday. At a June appearance in Sao Paulo, Bolsonaro said, "I think there are parts of Petrobras that could indeed be privatized, or have some other public-private partnership model, or even be divested, reducing the number of shares that the federal government holds, but that's something we can't say for sure right now." Adriano Pires, a Bolsonaro campaign adviser, has pushed back on the idea of Petrobras building additional refineries.
Meanwhile, near-term imports remain hefty. Brazilian buyers have arranged almost 170,000 barrels per day of diesel for delivery this month, according to the importers' group Abicom, with about 68% slated to come from the U.S.
Despite Petrobras' plans to boost refining, Brazil's state-run energy research agency, in its 2035 outlook, still projects the country will remain a net fuel importer, including after planned expansions at Rnest and the Boaventura Complex.
What this means for your portfolio
This is a rare moment when refinery plans, geopolitics and your cost of living all intersect. Brazil is leaning more on U.S. diesel just as policy talk in Washington and the election in Brazil inject uncertainty. Watch how the vote steers Petrobras' 2027-2031 plan and whether those near-term import bookings shift in source or size. If the country remains a net importer into 2035, diesel-sensitive sectors in Brazil could stay exposed to global price swings.
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