Crude oil prices jumped sharply on Monday after peace talks between the United States and Iran broke down, pushing Brent crude futures up $3.18, or about 3.1%, to $104.47 a barrel. That followed a 1.23% gain on Friday, meaning oil has risen roughly 4% over two sessions.

Why Talks Failing Matters for Oil

Iran holds some of the world's largest proven oil reserves, and any diplomatic deal would likely have opened the door to more Iranian crude entering global markets. When those talks collapsed, traders moved quickly to price out that supply. Less Iranian oil on the market tightens an already strained global supply picture, pushing prices higher.

The move also carries a risk premium. A breakdown in US-Iran diplomacy raises the possibility of military escalation in or near the Persian Gulf, one of the most critical shipping lanes for global oil exports. Even a modest threat to that corridor tends to push oil traders toward higher price bids as insurance against potential supply disruption.

What to Watch

The immediate question is whether talks resume or tensions escalate further. Any signal of renewed diplomacy could quickly reverse part of the price spike, since markets had been partially pricing in a future deal. Conversely, further deterioration in US-Iran relations could push Brent toward and beyond current levels.

Higher oil prices feed through to fuel costs for consumers and raise input costs across transport, manufacturing, and agriculture. Central banks watching for inflation signals will note the move, particularly in import-dependent economies like India, which sources a significant share of its crude from the region. Sustained prices above $100 per barrel would put fresh pressure on India's current account and the rupee.

Equity markets with heavy energy sector exposure could see short-term gains, while airline stocks and other fuel-intensive businesses face renewed margin pressure if prices hold.