News · International Relations
Increase in Hormuz oil traffic is papering over a darker reality
The Strait of Hormuz is the sea passage connecting the Persian Gulf with the Gulf of Oman and wider shipping routes. It is one of the world’s most important oil chokepoints because tankers use it to move crude from Gulf producers toward global markets. Any disruption can therefore affect fuel supplies, shipping, and prices far beyond the region. The article reports that current oil traffic through the strait ranges from 13 million to 17 million barrels per day. Before the war, the average was about 20 million barrels per day. Some ships are moving through only with complicated arrangements, including ship-to-ship transfers and military protection. The strait is not fully closed, but it is not operating normally either. Iran continues attacking vessels, while the United States commits substantial naval forces to protect transfers. The result is a costly, fragile flow rather than a return to ordinary shipping.
Based on reporting by Responsible Statecraft
What is the Strait of Hormuz, and why is it important to global oil shipping?
The Strait of Hormuz is the sea passage connecting the Persian Gulf with the Gulf of Oman and wider shipping routes. It is one of the world’s most important oil chokepoints because tankers use it to move crude from Gulf producers toward global markets. Any disruption can therefore affect fuel supplies, shipping, and prices far beyond the region.
The article reports that current oil traffic through the strait ranges from 13 million to 17 million barrels per day. Before the war, the average was about 20 million barrels per day. Some ships are moving through only with complicated arrangements, including ship-to-ship transfers and military protection.
The strait is not fully closed, but it is not operating normally either. Iran continues attacking vessels, while the United States commits substantial naval forces to protect transfers. The result is a costly, fragile flow rather than a return to ordinary shipping.
How much oil is currently moving through the Strait of Hormuz, and how does that compare with the pre-war average?
Industry trackers found more ships entering and leaving the Strait of Hormuz last week than at the war’s beginning. Their estimates placed oil movements between 13 million and 17 million barrels per day. The figures come from several methods, including ship transponders, radar, satellite imagery, and measured crude volumes.
Kpler, a private data and analytics platform, reported an average of 13 million barrels daily at the end of the month. Other trackers reported higher volumes within the broader range. The number of tankers crossing also varied, from six to 17 per day.
The comparison with normal conditions is crucial. Before the war, about 20 million barrels passed through the strait each day. Even the higher current estimate is therefore below the old average. Increased movement shows partial recovery, not a full reopening or a return to normal operations.
Why are increased oil shipments not bringing shipping costs and fuel prices back to normal?
More barrels crossing the strait do not mean the underlying shipping system has recovered. Tankers face attacks, rerouting, ship-to-ship transfers, scarce very large crude carriers, and sharply higher war-risk costs. These extra risks raise the cost of transporting each cargo.
The article gives a striking example: very large crude carriers reportedly cost $1.2 million from the Persian Gulf and $800,000 from the Gulf of Oman to Asia. Private shipping premiums are also rising because attacks continue. Government tankers can avoid some insurance costs, but the overall system still requires major naval investment.
As a result, physical oil movements are recovering without normal operations returning. Diesel problems continue, and ships carrying fertilizer, grains, aluminum, petrochemicals, and other dry bulk remain stranded in the Persian Gulf. The article says consumers should not expect prices to return to so-called pre-war levels soon.
How are ship-to-ship transfers, dark transits, and military escorts being used to move oil through the region?
Ship-to-ship transfers move cargo between vessels instead of sending one tanker through the entire dangerous route. Private companies transfer fuel with AIS transponders switched off, while government shuttle vessels carry it through the strait and later hand it to larger tankers in safer waters. The method keeps oil moving but adds risk, time, and expense.
The article describes these voyages as “dark” because the vessels travel without transmitting their normal identification signals. The system also depends on very large crude carriers meeting shuttle vessels outside the most dangerous waters. Those larger tankers are now in short supply, while private insurance premiums rise because attacks continue.
Military escorts and naval forces help protect the transfers, but they do not make them cheap. The United States has sent another carrier strike group led by the USS Roosevelt. The article presents the whole arrangement as an expensive cat-and-mouse game that may be difficult to sustain.
What alternative routes, such as Saudi Arabia's East-West pipeline and Red Sea ports, can carry oil around the Strait of Hormuz?
Oil can reach markets without crossing the Strait of Hormuz by using land pipelines and ports on the Red Sea. The article highlights Saudi Arabia’s East-West pipeline, which carries oil across Saudi Arabia toward its Red Sea coast. Tankers can then load at Red Sea ports instead of entering the Persian Gulf.
Kpler reported that the East-West pipeline returned to service at the end of September. This bypass allowed another 4 million barrels per day to leave the region, according to the company. Ship-to-ship transfers are also used to move cargo through bypass routes, adding another workaround to the system.
These alternatives reduce pressure on Hormuz but do not restore normal regional shipping. The article still reports lower-than-before strait volumes, rising costs, and ships stranded in the Persian Gulf. Bypass routes help maintain supply, yet they rely on limited infrastructure and continue to involve complex, expensive logistics.
Why does Iran have the ability to threaten ships in the Strait of Hormuz, even if it cannot completely close the waterway?
Iran’s leverage comes from the strait’s vulnerability and the difficulty of protecting every vessel moving through it. Even without completely closing the waterway, attacks can delay ships, raise insurance premiums, reduce tanker availability, and force companies into safer but more expensive methods.
The article reports that attacks on vessels attempting to cross continued last week. In response, oil moves through ship-to-ship transfers, dark transits, rerouting, and government shuttle vessels. The United States also deploys major naval forces, including a carrier strike group led by the USS Roosevelt, to protect oil transfers.
This produces a fragile stalemate. Rose Kelanic describes it as a situation in which Iran cannot fully close the strait, while the United States cannot fully open it. Oil flows, but only through expensive military and commercial workarounds. The article questions whether that level of U.S. activity is sustainable over the long term.
What are crude oil, diesel, and oil refineries, and why does a disruption in crude supplies eventually affect farming, trucking, and other transportation?
Crude oil is unprocessed petroleum taken from underground deposits. Oil refineries heat and separate crude, then process it into usable products, including diesel and other transportation fuels. Diesel is especially important for vehicles and equipment that move goods and support industrial work. These definitions are standard energy knowledge; the article focuses on the disruption’s consequences.
When crude shipments are delayed, refineries may receive less supply or pay more to obtain it. Higher costs can then pass through the fuel system. The article specifically reports that the diesel crisis continues, while ships carrying fertilizer, grains, cement, industrial minerals, petrochemicals, and other dry bulk remain stranded.
That creates wider pressure because farming depends on fertilizer shipments, and trucking depends on diesel. Other transportation and industrial activities can also face higher costs when fuel and cargo movements become unreliable. The article links this danger to continued attacks, expensive shipping, and uncertainty around the Gulf’s supply routes.
Key Facts:
📌 The Strait of Hormuz connects the Persian Gulf with wider global shipping routes.
📌 Current flows range from 13 million to 17 million barrels daily.
📌 Pre-war traffic averaged about 20 million barrels per day.
📌 Current estimates range from 13 million to 17 million barrels per day.
📌 Kpler reported 13 million barrels daily at month’s end.
📌 Pre-war average traffic was 20 million barrels per day.
📌 Shipping now depends on rerouting, transfers, and extraordinary war-risk costs.