[U.S. Naval Blockade Has Cost Iran Nearly $6 Billion in Oil Revenue] According to a report by Jinse Finance on June 6, citing The Paper, the latest shipping data shows that due to the ongoing blockade of Iranian ports by the U.S. Navy, Iran's crude oil exports in May have dropped to their lowest level in six years. Data from trade analytics firm Kpler indicates that Iran's crude oil and condensate exports in May fell to an average of less than 300,000 barrels per day, the lowest level since late 2019 to early 2020. Before the U.S. implemented the naval blockade, this figure once approached an average of 2 million barrels per day. The data shows that Iranian crude oil is typically priced above $90 per barrel, occasionally exceeding $100 per barrel. Based on a conservative estimate of $90 per barrel, Iran's daily crude oil export revenue in May was approximately $27 million, with total revenue for May around $837 million. This figure represents a significant decline compared to the levels of the previous two months. In March, Iran's crude oil exports averaged 1.84 million barrels per day, with estimated daily export revenue of $165.6 million, totaling approximately $5.13 billion for the month. In April, Iran's crude oil exports averaged 1.34 million barrels per day, with daily revenue of about $120.6 million, resulting in monthly revenue of approximately $3.62 billion. Al Jazeera pointed out that if Iran had anticipated monthly crude oil export revenues at March's levels, the country has already lost about $5.8 billion in April and May.