The Strait of Hormuz, located between Oman and Iran, connects the Persian Gulf with the Gulf of Oman and the Arabian Sea. The strait is deep enough and wide enough to handle the world's largest crude oil tankers, and it is one of the world's most important oil chokepoints. Large volumes of oil flow through the strait, and very few alternative options exist to move oil out of the strait if it is closed. In 2024, oil flow through the strait averaged 20 million barrels per day (b/d), or the equivalent of about 20% of global petroleum liquids consumption. In the first quarter of 2025, total oil flows through the Strait of Hormuz remained relatively flat compared with 2024.
Although we have not seen maritime traffic through the Strait of Hormuz blocked following recent tensions in the region, the price of Brent crude oil (a global benchmark) increased from $69 per barrel (b) on June 12 to $74/b on June 13. This piece highlights the importance of the strait to global oil supplies.
Chokepoints are narrow channels along widely used global sea routes that are critical to global energy security. The inability of oil to transit a major chokepoint, even temporarily, can create substantial supply delays and raise shipping costs, potentially increasing world energy prices. Although most chokepoints can be circumvented by using other routes—often adding significantly to transit time—some chokepoints have no practical alternatives. Most volumes that transit the strait have no alternative means of exiting the region, although there are some pipeline alternatives that can avoid the Strait of Hormuz.
Between 2022 and 2024, volumes of crude oil and condensate transiting the Strait of Hormuz declined by 1.6 million b/d, which were only partially offset by a 0.5-million b/d increase in petroleum product cargoes. The decline in oil transit through the strait partially reflects the OPEC+ decision to voluntarily cut crude oil production several times starting in November 2022, which lowered exports from Saudi Arabia, Kuwait, and the United Arab Emirates (UAE). In addition, disruptions in 2024 to oil flows around the Bab al-Mandeb Strait, which connects the Arabian Sea to the Red Sea, led Saudi Arabia’s national oil company Aramco to shift seaborne crude oil flows from the Strait of Hormuz, instead sending it over land through its East-West pipeline to ports on the Red Sea. Also, more refining capacity in the Persian Gulf states increased regional demand for crude oil and shifted some flows to local markets within the Persian Gulf.
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