Trump’s 25% tariff threat on Iran’s trading partners lifts crude oil prices

Oil benchmarks advance after tariff announcement

Global crude oil prices rose after US President Donald Trump announced a 25% tariff on countries doing business with Iran. Moneycontrol reported that the measure was described as taking effect immediately, although Trump’s social-media statement provided little detail about its scope or enforcement.

Brent crude futures increased by 28 cents, or 0.4%, to $64.15 a barrel, close to the two-month high reached in the previous session. US West Texas Intermediate futures also gained 28 cents, or 0.5%, to $59.78 a barrel, their highest intraday level since December 8.

The relatively modest price move reflected uncertainty over how the tariff would operate. The announcement nevertheless introduced a new political risk into a market already monitoring Iranian exports, supply interruptions in Kazakhstan and the prospect of ample global availability.

China trade becomes the central market risk

China is the world’s largest crude importer and purchases about 90% of Iran’s total oil exports, according to Moneycontrol. Any measure penalising countries that trade with Tehran could therefore affect the commercial calculations of Chinese refiners, traders, banks, shipping companies and insurers involved in Iranian cargoes.

Iran’s daily exports represent about 2% of global oil demand. A disruption would remove barrels from a market where concerns about excess supply had helped push prices lower since mid-June. The tariff threat does not itself confirm that Iranian shipments have stopped, but it raises the potential cost and compliance risk of handling them.

Moneycontrol also reported that Iranian crude stocks at a key export terminal were roughly one-fifth lower than at the beginning of the year. The publication described this as a possible indication that Iran was seeking to protect crude supplies amid domestic unrest. The available report did not identify the terminal or state the stock volume.

Volatility rises while physical supply remains uncertain

Traders responded by increasing protection against higher prices. Moneycontrol said Brent call-option activity reached unprecedented levels on Monday, showing that market participants were paying more attention to the possibility of a supply-driven rally even though the immediate increase in futures remained below 1%.

Supply problems outside Iran added support. Kazakh flows were being disrupted by bad weather, maintenance and damage to Russian infrastructure caused by Ukrainian drones, according to Moneycontrol. These interruptions broadened the market’s focus beyond the tariff announcement, although the report provided no estimate of the affected volume.

For refiners and fuel distributors, the principal question is whether the tariff changes physical crude flows or remains primarily a political warning. A sustained loss of Iranian supply would tighten access to discounted barrels and could redirect buyers toward alternative grades. If shipments continue, the immediate effect may remain concentrated in freight, insurance, financing and compliance costs rather than outright scarcity.

The rise in crude does not automatically produce an immediate increase in retail petrol or diesel prices. Domestic taxes, exchange rates, refining margins, inventories and regulated pricing practices influence how quickly international costs reach consumers. Import-dependent markets are nevertheless exposed if crude gains persist, particularly when higher dollar-denominated oil costs coincide with weaker local currencies.