Petrobras is trading 5.05% up at $19.47, supported primarily by a sharp oil-price rally after renewed U.S.-Iran fighting near the Strait of Hormuz.
- Brent crude rose more than 3.5% to $91.25 on August 31, 2026; Reuters linked move to heightened supply-disruption risks, benefiting oil producers.
- Petrobras’s LNG-export discussions add positive company context; broader energy-sector advance makes move sector-driven, not company-specific.
- Trading is active during the morning session; no confirmed new Petrobras filing directly explains the gain.