By Brazil Stock Guide – Petrobras announced that it will raise the price of diesel A sold to distributors by R$ 0.38 per liter starting March 14, marking the first increase in more than a year and coming amid a broader government effort to manage fuel costs in Brazil’s inflation-sensitive economy.
Because diesel sold at retail stations contains a mandatory blend of 85% diesel A and 15% biodiesel, the adjustment corresponds to roughly R$ 0.32 per liter for diesel B — the product ultimately sold to consumers.
Following the adjustment, Petrobras said the average price of diesel A sold to distributors will reach R$ 3.65 per liter. The company’s share of the final pump price for diesel B will average R$ 3.10 per liter.
First Increase in Over a Year
The move ends a long stretch without increases. Petrobras noted that the last price adjustment for distributors was a reduction on May 6, 2025, while the previous increase occurred on Feb. 1, 2025 — meaning diesel prices had not risen for more than 400 days.
Even with the new adjustment, the company said diesel A prices sold to distributors have fallen by R$ 0.84 per liter since December 2022, a drop of about 29.6% in real terms after accounting for inflation.
The data helps Petrobras reinforce its narrative that domestic fuel prices have not fully tracked global oil volatility over the past several years, a sensitive topic in Brazil where fuel costs quickly ripple through freight, agriculture and food prices.
Government Moves to Offset Impact
The price increase comes alongside a package announced by the Brazilian government designed to prevent a sudden spike in pump prices.
Authorities eliminated federal PIS/Cofins taxes on diesel and created a temporary subsidy program for diesel commercialization through Provisional Measure 1.340, published on March 12.
The program provides payments of R$ 0.32 per liter to participating companies. Petrobras’ board has already approved joining the program, though the formal adhesion still depends on regulatory rules to be issued by Brazil’s oil regulator, the National Petroleum Agency (ANP).
According to Petrobras, the combination of the R$ 0.38 price adjustment and the potential subsidy would generate an effective gain of about R$ 0.70 per liter for the company, while the tax relief and subsidy structure should mitigate the impact on consumers.
Managing a Politically Sensitive Fuel
Diesel occupies a unique position in Brazil’s economy. It powers most long-distance trucking, agricultural machinery and cargo distribution, making it one of the most politically sensitive fuels in the country.
Large diesel price swings can rapidly affect freight costs, food logistics and overall inflation, which is why governments often attempt to smooth adjustments rather than allow international oil shocks to pass directly through domestic markets.
The current arrangement reflects that balancing act. Petrobras is able to partially realign domestic prices with market conditions after a long period without increases, while the federal government uses fiscal tools to limit the immediate pass-through to consumers.
Whether this approach remains sustainable will depend largely on the direction of global oil prices. If international crude remains elevated, Brazil could face growing pressure to either extend subsidies or allow a larger adjustment in domestic fuel prices in the months ahead.
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