Brazil's Diesel Trap
How a R$0.64 Tax Cut Became a R$0.26 Discount — and What That Tells You About the Country's Real Energy Problem.
The Hormuz crisis exposed what Brazil’s fuel pricing system was designed to hide. The math does not lie.
Somewhere inside the Ministério da Fazenda on the evening of March 12, a team of bureaucrats finished drafting a package they believed would calm the Brazilian fuel market. PIS/COFINS on diesel — slashed to zero. A new subsidy of R$0.32 per liter, codified through Provisional Measure 1,340. The math was clean: R$0.64 per liter of relief, enough to absorb the worst of the Hormuz shock before it reached the gas station.
Eighteen hours later, Petrobras announced an increase of R$0.38 per liter on diesel sold to distributors, effective March 14.
I have been in rooms where pricing decisions get made under political pressure. I have watched state-owned companies absorb losses for months to keep the peace, then move when cover arrives. The timing here was not a coincidence. Petrobras had held diesel prices flat since May 2025 — nine months of eating the spread between its below-market domest…
