Brazil's state-controlled producer said output rose 16% year on year to 3.23 million barrels of oil equivalent a day, while refineries operated at 95% capacity.
The increase was driven by continued development of the giant Buzios offshore field, and March refinery throughput reached its highest monthly level since 2014.
Near-full refinery use reduced Brazil's need for fuel imports as the Iran war disrupted oil markets and highlighted the country's growing role in global energy supply.
Is Petrobras's record production a strategic win or a sign of Brazil's risky dependence on crude exports?
With Petrobras's record output, why is Brazil facing diesel shortages and crippling import costs at home?