Brent tops $100 as Middle East tensions hit oil

Brent crude rose above $100 a barrel on Monday after renewed U.S.-Iran tensions were reported around the Strait of Hormuz, putting oil supply risk back at the center of global markets.

The move takes Brent across a round-number threshold watched by energy traders, central banks and governments after inflation slowed from its 2022 peak but remained sensitive to fuel costs. Any sustained rise in crude would feed first through gasoline, diesel, jet fuel and shipping costs, then into headline inflation measures that can complicate rate-cut plans.

Hormuz risk lifts crude

The Strait of Hormuz is a key oil transit route linking Gulf producers with customers in Asia, Europe and the United States. The reported disruption gives traders a direct mechanism to price higher risk: fewer expected cargoes, higher insurance costs and tighter prompt supply.

For energy companies, prices above $100 can lift upstream cash flow if volumes keep moving, while refiners, airlines and chemical producers face higher input costs. For the wider commodities complex, the issue is whether the move stays limited to crude or spreads into natural gas, freight and petrochemicals.

If Brent holds above $100 through September 15, 2026, the macro effect would be a renewed inflation impulse, the company-level effect would favor oil producers over fuel-intensive buyers, and the sector effect would be tighter hedging demand across energy markets. If flows through Hormuz normalize within the next 24 hours, the price premium may narrow and attention would shift back to inventories and demand data.