Since the outbreak of the conflict, Iran has likely earned hundreds of millions of dollars in additional revenue from oil sales, as its crude prices have risen significantly after it became the only major exporter able to ship crude through the Strait of Hormuz.

Iran has greatly benefited from oil price volatility since the war began. Its flagship crude grade is now being sold to customers at the lowest discount to Brent crude in over ten months. Meanwhile, the international benchmark price itself has surged above $100 per barrel since the airstrikes commenced.

Estimates indicate that Iran's exports this month have remained near pre-war levels of approximately 1.6 million barrels per day. Vessels carrying Iranian crude continue to load at the Kharg Island terminal and transit the Strait of Hormuz out of the Persian Gulf, with recent activity accelerating.

This situation contrasts sharply with the effective blockade imposed on other Gulf oil producers.

Despite daily airstrikes by the United States and Israel against Iran, Tehran's ability to maintain its financial lifeline has diminished the impact of these military operations. Following Washington's unexpected move to temporarily suspend sanctions on Iranian crude already loaded and at sea—an effort to mitigate the war's impact on oil prices—Tehran stands to gain even more.

"The Trump administration is essentially pleading with Iran to sell oil," said Richard Nephew, a senior researcher at Columbia University's Center on Global Energy Policy and a former deputy special envoy for Iran and sanctions policy coordinator at the U.S. State Department. "I would have thought stopping Iranian oil sales would be a U.S. priority."

According to export estimates from Tankertrackers.com and the price of Iran's flagship Iran Light crude, Tehran has earned approximately $139 million per day from sales of this crude so far in March, up from $115 million per day in February.