Privatized refinery charges diesel 87% more expensive than Petrobras.

Written by Bruno Teles

Published on 18/04/2026 at 00:15

Updated on 02/05/2026 at 15:18

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The result is that the diesel sold by Mataripe became 64% more expensive than Petrobras’s in the same month, using the same oil as raw material and serving the same consumer market. But Bahia is not the only case. Two other privatized refineries also adjusted much higher than the state-owned company during the crisis caused by the war in Iran and the closure of the Strait of Hormuz.

In Amazonas, Ream raised the diesel price from R$ 3.78 to R$ 5.10, an increase of 35%. In Rio Grande do Norte, Clara Camarão adjusted the S-500 diesel from R$ 3.33 to R$ 5.78, a rise of 74%. Meanwhile, Petrobras maintained the adjustment at 12% across all its refineries, absorbing part of the international volatility instead of passing it entirely to the consumer.

Why is the difference so large if the oil is the same?

The explanation lies in the pricing model.

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The problem goes beyond price

In the case of Ream, in Amazonas, the refinery reduced its refining operations and began to function basically as an import base.

In practice, Amazonas lost industrial capacity and became more dependent on imported diesel, precisely the type of fuel that is more expensive during international crises like the current one.

The federal government reacted with a subsidy package: R$ 0.32 per liter for domestic producers and R$ 1.20 per liter for importers, with costs shared between the Union and states, limited to R$ 4 billion.

Even with the subsidy, diesel at the pump reached R$ 7.26 per liter in the third week of March, the highest price of the year.

The road modal accounts for 65% of cargo in Brazil, and diesel represents up to 50% of operational costs on long-distance routes.

The discussion about the privatization of refineries gains a concrete element with the current crisis: instead of creating competition and lowering prices, as promised at the time of the sale, the privatized refineries created regional monopolies that pass on the rise in oil prices more intensely and quickly than Petrobras.

Same barrel, same month, same country: private diesel cost up to 87% more than Petrobras’s.

What do you think: did the privatization of refineries benefit the consumer or just the companies?

Privatized refinery charges diesel 87% more expensive than Petrobras.

Why is the difference so large if the oil is the same?

The problem goes beyond price

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Privatized refinery charges diesel 87% more expensive than Petrobras.

Why is the difference so large if the oil is the same?

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