Depleting oil revenues exacerbate Iran’s economic woes, and escalating US-Iran tensions could trigger further escalation

1. The blockade by the United States Navy has nearly completely halted Iran's crude oil exports. Since the U.S. re-imposed the blockade in mid-July, not a single drop of Iranian oil has crossed the blockade line. Currently, the floating storage of Iranian crude on ships outside the blockade line has dropped from around 90 million barrels in mid-July to about 29 million barrels, and it is expected to be exhausted next month. According to Kpler data, in August, Iran loaded an average of 255,000 barrels of oil per day on ships within the Gulf, 85% lower than the average from February to April. However, the newly loaded oil remains trapped behind the blockade line and has not yet been delivered to buyers.2. The squeeze on oil exports is severely impacting Iran’s economy. About one-third of Iran's annual budget depends on oil revenues, and oil sales directly fund the armed forces including the Revolutionary Guards. Iran’s official inflation rate now exceeds 80%. The International Monetary Fund forecasts that Iran’s economy will shrink by 5.4% this year, the most severe contraction since the 1980s. Since Trump announced a new round of economic pressure measures in August, the rial has depreciated nearly 15% against the US dollar.3. Alternative export channels are also facing serious restrictions. Besides seaborne transport, land transportation is extremely limited, with daily exports not exceeding 40,000 barrels. By August, the amount of loaded petrochemical products had fallen by about two-thirds compared to the start of 2026. After the United Arab Emirates suspended financial and economic transactions with Iran last month, official trade has basically ceased, although some trade continues secretly through shadow companies. Some trade is shifting toward Turkey, Iraq, Oman, and Pakistan, but this increases time and costs.4. Despite the mounting economic pressure, Iran shows a willingness to resist. An expert from the European Council on Foreign Relations stated, "U.S. actions will have a major impact on ordinary Iranian families, but I am deeply skeptical that Iran will yield at the negotiating table." Gulf officials and analysts warn that increasingly tight pressure could trigger further retaliation from Iran—the recent U.S. strikes on three Iranian oil tankers were in response to Iran firing ballistic missiles at U.S. warships. Saudi officials revealed that Iran is providing more weapons and intelligence support to Yemen's Houthi forces, increasing threats to Saudi shipping and another critical Red Sea chokepoint.