Brent Oil Tops $70 as Trump’s Iran Threats Raise Supply Concerns

Brent crude prices climbed above $70 a barrel on 29 January 2026, reaching a four-month high, as markets reacted to rising geopolitical tensions after renewed threats from US President Donald Trump against Iran.

Investors grew increasingly concerned that any escalation could disrupt oil supplies from the Middle East, particularly through the strategically vital Strait of Hormuz.

The rally was driven by concerns over a possible US military move against Iran. As OPEC’s fourth-largest producer, pumping about 3.2 million barrels per day, any disruption involving Iran could add to supply pressures already building in the oil market.

Why Are Iran Tensions Driving Oil Prices Higher?

Markets' immediate concern extends beyond Iran's own oil production. Analysts warn that any conflict could have wider regional spillovers.

“The immediate market concern is the collateral damage if Iran retaliates against its neighbours or, more critically, moves to close the Strait of Hormuz,” said John Evans, an analyst at PVM. Nearly 20 million barrels per day of oil pass through the narrow waterway, making it one of the world’s most important energy transit routes.

Brent crude futures were up $1.39, or just over 2%, at $69.79 a barrel by mid-morning London trade. The US benchmark West Texas Intermediate (WTI) rose $1.37, or about 2.2%, to $64.58 a barrel, also touching a four-month high during the session.

Tensions escalated after Donald Trump increased pressure on Iran to halt its nuclear program. Reports from Reuters said the US administration is weighing options that include targeted strikes on Iranian security forces and senior figures, alongside the deployment of a US naval group to the region.

Trump, writing on his Truth Social platform, warned that Iran must return to negotiations quickly, while Iranian officials said any military action would be met with an immediate response. The exchange has added a clear geopolitical premium to oil prices.

How Tight Is the Oil Market Right Now?

The geopolitical risks around Iran have emerged at a time when oil supply is already facing pressure from multiple directions.

Analysts at Citi said the threat of a confrontation with Iran has added a $3 to $4 per barrel geopolitical premium to oil prices, warning that further escalation could push Brent to as high as $72 a barrel over the next three months.

Supply-side issues outside the Middle East have also contributed to tighter conditions. Kazakhstan's Tengiz oilfield, one of the world's largest, is gradually restarting after electrical fires forced output cuts last week. Full production is expected to resume within a week.

After brief disruptions brought on by Winter Storm Fern, which momentarily reduced petroleum and gas output, producers in the US have resumed restarting wells.

All these factors have made oil markets more vulnerable to geopolitical shocks than they were earlier in the year.

What Does This Mean for Investors?

The crucial question for investors is whether geopolitical worries result in a long-term supply shock or continue to be a short-term risk premium.

As markets consider the risk of disruptions to shipments via the Strait of Hormuz, oil prices may continue to rise if the Iranian impasse persists or gets worse. Any hit to Iran’s own output or to regional shipping lanes would add to supply strains, especially if such developments occur alongside existing outages in other producing areas.

At the same time, traders are watching for signs of easing pressures. A full restart of Kazakhstan’s Tengiz field and the restoration of US output after weather-related disruptions could help stabilise supplies in the near term.

For the moment, oil markets are reacting sharply to political cues from both Washington and Tehran. Investors are watching diplomatic moves, tanker traffic through the Strait of Hormuz, and early signals on whether current tensions translate into a more durable disruption to global energy supplies.

Sources:

CNBC

Reuters