Goldman Flags 50% Petrobras Diesel Hike Risk
BRAZIL · ELECTION AND FUEL
Key Facts
- —The country Brazil, Latin America’s largest economy, votes in a presidential runoff on Sunday 25 October 2026 between President Lula and Senator Flávio Bolsonaro, with state-controlled Petrobras at the centre of fuel pricing.
- —Why it matters Petrobras sets most of Brazil’s diesel price, so a rise of the size Goldman Sachs describes would hit trucking costs, food prices and the profits that US holders of its New York shares follow.
- —Why now Reports on Goldman’s warning, a new estimate of the price gap and a Petrobras board discussion set for Monday all surfaced by Friday 23 October 2026, two days before Brazilians go to the polls.
- —What happened Goldman Sachs warned that Petrobras could need to raise diesel by about 50% after the runoff if the extra aid for importers ends, although the bank’s base case is no price change before year-end.
- —The numbers An importers’ estimate puts the gap at R$3.53 a litre (about US$0.70) after Thursday’s close, just above the R$3.52 (about US$0.70) import subsidy, and diesel has gone 145 days without a Petrobras adjustment.
- —What it means for you US investors in Petrobras and Brazilian assets face a price decision that has been delayed until after the vote, while a big diesel rise would lift Brazilian inflation and freight costs.
- —Still open Whether the Petrobras board and executive board act next week, how large any increase is, and whether Brasilia extends fuel subsidies into 2027.
- —Prediction markets Polymarket gives Flávio Bolsonaro a 75.4% chance of winning the 25 October runoff and Lula 24.5% (23 October, 4:28 p.m. ET). Polymarket puts Flávio Bolsonaro’s chance of winning at 75% and Kalshi at 76% (Lula: 26% and 24%), as of 23 October, 4:20 pm ET; prices are bets, not polls.
- —Power Index Brazil ranks 1st of 14 in The Rio Times Latin America Power Index, with 75.0 points (October 2026 edition).
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Goldman Sachs has warned that Petrobras could have to raise its diesel price by about 50% after the runoff, Exame and Valor reported on Friday 23 October 2026, though the bank’s base case is no change this year. The Petrobras diesel decision matters to US investors because the company’s shares trade in New York and the Brazil election 2026 vote is two days away.
The Brazil runoff date is Sunday 25 October, and Brazil election polls still show a very close race, while Brazil election odds favour Flávio. Petrobras is the state-controlled oil company, and the bank expects it to wait for the result before any decision on prices.
Goldman’s analysts called the price decision politically sensitive, and a separate importers’ estimate published the same day shows the gap widening. Both numbers come from third parties, and Petrobras has not confirmed any plan in the sources we reviewed.
What Goldman Sachs Warned About Petrobras Diesel
Exame reported that Goldman warned this week of a roughly 50% Petrobras diesel increase after the election period. The bank puts the gap between Brazil’s domestic price and import parity, which is what an importer would pay abroad, at 21% even after federal subsidies are counted.
Goldman’s analysts described a “subsidy asymmetry” that makes the low local price possible for now. Importers receive R$3.52 a litre (about US$0.70) in aid, while domestic producers receive R$2.12 (about US$0.42), according to Exame, and InfoMoney and TMC add that the extra R$1.40 (about US$0.28) for importers runs only until mid-November.
If that asymmetry ended after the election, the analysts calculate that Petrobras would need an immediate rise of about 50% (about R$1.50 a litre, or US$0.30) to match the global reference, according to InfoMoney’s account of the report. They add a risk of a further increase if management decides to recover the part of the year when diesel sold below import parity.
The analysts wrote that Petrobras “will probably wait for the outcome of the election before making any decision” on fuel prices, given how sensitive the subject is in Brazil (translation ours). Goldman’s base case is that Petrobras keeps diesel unchanged until the end of the year, because the bank cannot see whether the government will renew the importer aid, and Valor’s summary repeats the 21% gap.
The Gap Between Petrobras and Import Prices
A separate estimate from Abicom, the fuel importers’ association, shows the gap growing. After Thursday’s close on 22 October, the gap between Petrobras refinery diesel and import cost averaged 108%, or R$3.53 a litre (about US$0.70), Eixos and SpaceMoney reported.
That is above the R$3.52 (about US$0.70) subsidy, which Eixos and SpaceMoney say is the first time the gap has passed the government aid. Eixos linked the move to the continued rise in oil prices and to pressure on diesel in the international market.
Eixos and SpaceMoney also counted 145 days without a Petrobras diesel adjustment and said the market widely expects an increase after Sunday’s vote. Gasoline faces less pressure, it added, after a rise of R$0.44 a litre (about US$0.09) in mid-September.
The 21% figure from Goldman and the 108% figure from Abicom are different measures, and the sources do not reconcile them. Abicom speaks for companies that buy fuel abroad, so its estimate is best read as an industry view of the gap.
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What the Government and Petrobras Have Signalled
Valor reported on Friday, citing unnamed sources, that the Petrobras board is expected to discuss the diesel price after the second round. The meeting is reportedly set for Monday 26 October, and SpaceMoney also puts fuel prices on that board’s agenda, while any change would be applied by the executive board, Valor said.
Finance Minister Dario Durigan told the news site UOL on Friday that the government could keep fuel subsidies in 2027 if oil stays high and extra revenue continues. The 2026 budget assumed oil at US$64 a barrel, and the law that lets the government use the extra money applies only to 2026, Poder360 noted.
Durigan said the aid is meant to soften the effect on prices, not to control them, and added that he would not ask for more fiscal space. He gave no estimate of the cost of an extension and did not rule out keeping the oil export tax, according to Poder360 and Money Times.
Money Times put the 9 October round of relief at R$5.2 billion (about US$1.03 billion) over 30 days, covering gasoline, ethanol and imported diesel. We covered the earlier measures in Brazil Fuel Subsidies Face US$113 Oil Test.
How the Runoff Shapes the Timing
Four polls published on Friday gave a split picture, which Poder360 summed up as an undefined race. Vox Brasil put Lula at 50.6% of valid votes against 49.4% for Flávio, while Real Time Big Data and Alfa gave Flávio 52% to 48%.
The fourth, Ipespe/Abrapel, had Flávio at 50.5% and Lula at 49.5%, and Poder360 said all but Alfa fall within the margin of error. Flávio is a conservative senator and the son of former president Jair Bolsonaro, and Lula is the left-wing incumbent.
Durigan, a minister in Lula’s government, told UOL that a return to import-parity pricing under Flávio would sharply raise fuel prices, Money Times reported, but the sources we reviewed do not give Flávio’s own plan for Petrobras. The gap measured by Goldman and by Abicom exists whichever candidate wins on Sunday.
What It Means for You
For US investors, a diesel rise of the size Goldman describes would add to Petrobras refining revenue, but it would also feed Brazilian inflation and political pressure on the next government. The company’s American depositary receipts trade on the New York Stock Exchange under the tickers PBR and PBR.A, and the central bank’s PTAX rate put the real at R$5.0377 per US$1 on 23 October.
Truckers, farmers and food companies in Brazil would feel any increase first, because road transport in Brazil runs on diesel. Our guides Brazil Power Structure Explained 2026 and Brazil Geopolitics Explained 2026 explain who sets these policies, and our Petrobras news page tracks the company.
Visitors and expats would see the effect through bus fares, deliveries and grocery prices rather than at the pump. Our Rio de Janeiro expat city guide covers day-to-day costs.
What Is Not Known
It is not known whether Petrobras will raise diesel next week, by how much, or when, because the company has not announced a decision in the sources we reviewed. Goldman’s 50% is an estimate of what closing the gap would require, not a forecast, since its base case is no change before year-end.
We could not open Goldman’s report, so its figures rest on Exame, InfoMoney and TMC, with Valor’s summary matching the 21% gap. The Monday board meeting rests on unnamed sources cited by Valor, and we could read only that article’s opening lines.
The sources do not say whether Brasilia will renew the extra importer aid when it lapses in mid-November, or how the 21% and 108% gap measures relate. Goldman’s own estimate, per Exame, is that a 50% refinery rise would lift pump prices about 20% and add 0.21 to 0.24 percentage point to Brazilian inflation.
What Prediction Markets Say
Polymarket gives Flávio Bolsonaro a 75.4% chance of winning the 25 October runoff and Lula 24.5% (23 October, 4:28 p.m. ET). The Brazil Presidential Election event has drawn about US$193.1 million in bets, with about US$25.6 million on the Flávio contract and US$29.0 million on the Lula contract.
These prices are bets, not polls, and they say nothing about the diesel decision. Live prices are on our odds page.
Prediction markets · who wins the runoff
Implied chance of winning Brazil’s presidency on 25 October, from traders’ prices.
Polymarket
Flávio Bolsonaro 74.9% · Lula 25.5% (US$193 million traded)
Kalshi (regulated in the US by the CFTC)
Flávio Bolsonaro 76% · Lula 24%
As of 23 October, 4:20 pm ET (21:20 Lisbon), updated every 20 minutes. Prices are bets, not polls, and can move fast.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
Frequently Asked Questions
What did Goldman Sachs say about Petrobras diesel?
It warned that Petrobras could have to raise diesel by about 50% after the election period if the extra importer aid ends, because local prices sit below import parity even with subsidies. Its base case, however, is no price change before year-end.
Has Petrobras announced a diesel price rise?
No, not in the sources we reviewed. Valor reports, citing unnamed sources, that the board will discuss diesel after the runoff, with a meeting set for Monday 26 October.
How big is the gap between Petrobras and import prices?
The importers’ association Abicom puts it at R$3.53 a litre (about US$0.70), above the R$3.52 (about US$0.70) subsidy. Goldman measures the gap at 21% once subsidies are counted, a different yardstick.
Will Brazil keep its fuel subsidies in 2027?
Finance Minister Dario Durigan says it is possible if oil stays high and extra revenue continues. He gave no cost estimate, and the current legal basis covers only 2026.
What does this mean for US readers?
Petrobras shares trade in New York, so a diesel price decision after the 25 October runoff affects its earnings and Brazilian inflation. Goldman’s 50% is an estimate of the risk, not a company plan or its base case.
Sources: Exame, 23 October 2026; Valor Econômico on Goldman, 23 October 2026; Valor Econômico on the Petrobras board, 23 October 2026; Eixos, 23 October 2026; Poder360 on Durigan, 23 October 2026; Money Times on Durigan, 23 October 2026; Poder360 on the polls, 23 October 2026; InfoMoney on Goldman, 22 October 2026; TMC on Goldman, 23 October 2026; SpaceMoney on the diesel gap, 23 October 2026; Central Bank of Brazil PTAX rates, 23 October 2026; US Securities and Exchange Commission company record for Petrobras.
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief