Brent crude rose 2.5% to $86.30 a barrel on Thursday, while U.S. West Texas Intermediate climbed to $82.10, as fears of a wider conflict in the Persian Gulf revived supply worries.

Price spike and market reaction

Traders on the ICE Futures exchange pushed the benchmarks higher after reports that U.S. officials, including former President Donald Trump, discussed the possibility of resuming large‑scale military action against Iran, NBC News said.

Energy analysts at Bloomberg noted the jump marks the steepest one‑day gain for Brent since the 2022 price surge, and that futures contracts for delivery in December are now priced over $4 higher than a week ago.

oil trading floor New York

Supply concerns and geopolitical risk

The Strait of Hormuz, through which roughly a fifth of the world’s petroleum passes, has been a flashpoint since Iranian forces seized a British‑flagged vessel in early October. According to the International Energy Agency, any prolonged disruption could shave off up to 2 million barrels per day from global supplies.

U.S. Central Command confirmed heightened naval activity in the region, but stopped short of confirming an imminent operation. The ambiguity has prompted hedge funds to increase their exposure to oil‑linked assets, a trend noted by Refinitiv data.

Implications for global economies

Higher oil prices translate into cost pressures for import‑dependent economies. The International Monetary Fund warned that a sustained $5‑per‑barrel increase could shave 0.2 percentage points off global growth forecasts for 2026.

Emerging markets such as India and Nigeria, which rely heavily on oil imports, are likely to see inflationary spikes, potentially prompting central banks to tighten monetary policy earlier than planned.

In Europe, the European Central Bank’s recent minutes flagged energy price volatility as a key risk to its inflation target, suggesting that policymakers may have to reconsider their stance if the trend continues.

oil tanker Hormuz Strait

Analysts at Goldman Sachs expect the market to remain jittery until diplomatic channels produce a clear de‑escalation, noting that any further military escalation could push Brent above $95 within weeks.

For consumers, the immediate effect will be higher pump prices and increased freight costs, which could feed through to retail goods ranging from groceries to electronics.