Gulf nations and the U.S. military have established alternative maritime and pipeline routes to maintain global oil supplies seven months after Iran closed the Strait of Hormuz at the start of the current war. While approximately 15 million barrels of oil per day were initially choked off, analysts from Rystad Energy and Kpler report that workarounds have restored about 8 to 10.8 million barrels per day to the market. Despite these efforts, oil prices have risen to approximately $100 per barrel, and shipping costs have increased significantly due to the longer and more complex transit methods required to bypass the conflict zone.
The conflict began in February 2026 with U.S. and Israeli bombardments of Iran, leading Tehran to shut the strait, which typically handles 20% of global oil trade. Saudi Arabia initially utilized its East-West pipeline to the Red Sea port of Yanbu, while the United Arab Emirates used a pipeline to Fujairah. However, these routes faced disruption when Iranian-backed Houthi rebels declared a blockade of Saudi oil shipments in July 2026, and the East-West pipeline was forced to shut down following an attack on September 11, 2026.
To counter these shutdowns, exporters have adopted a "dark shuttle" method through a U.S.-supervised southern corridor in the Strait of Hormuz, where tankers travel at night with location systems turned off. Kpler data showed six supertankers loaded 12 million barrels at Saudi terminals using this route on Monday, September 21, 2026. U.S. Central Command reported that its forces have assisted 2,000 commercial transits and the transport of over 1 billion barrels of oil in recent months. Meanwhile, global demand has dropped by an estimated 5 million barrels per day, and commercial inventories have been drawn down by 3.5 million barrels per day to help balance the market.
The scale of the economic impact is most visible in shipping and national expenditures. Maritime data firm Windward reported that spot charter rates for tankers rose from a prewar average of $30,000–$50,000 per day to $1 million per day as of September 11, 2026. This increase means shipping now accounts for roughly 25% of the total cost of a barrel of oil ($26 per barrel), compared to the usual 1% to 3%. For the U.S. government, the war has already cost taxpayers $37.5 billion and resulted in the deaths of 18 service members. In Iran, the U.S. naval blockade has reduced oil exports from 1.85 million barrels per day in the spring to approximately 255,000 barrels in August 2026, leading to fuel shortages and long lines at domestic gas stations.
The long-term stability of the global oil market remains uncertain as current workarounds rely on depleting commercial stocks and maintaining a high-resource U.S. military presence. Analysts warn that the "dark shuttle" transfers are vulnerable to Iranian escalation, and rerouting ships around Africa or through the Suez Canal adds up to a month to voyage times, further straining the global tanker fleet. If current routes are attacked, transfers may have to move further into the Gulf of Oman, increasing costs again. Rystad Energy projections suggest oil could fall to $80–$82 next year, but only if the Strait of Hormuz is fully reopened. Currently, there is no active diplomatic progress following the collapse of a June 2026 agreement.