Gulf Oil Exports Rebound as Iran's Hold on Hormuz Weakens

Middle East oil exports rebounded in late September 2026 as Iran's ability to restrict traffic through the Strait of Hormuz broke down.

Crude oil flows through the waterway reached at least 16.5 million barrels per day in September, according to OilPrice.com. Shipments of LNG, or liquefied natural gas cooled to liquid for transport by ship, hit their highest monthly level since the start of the U.S.-Iran war, according to Reuters. By September 30, crude flows had recovered, though tanker insurance costs and geopolitical risks still blocked a return to normal.

The shift was operational as well as statistical. Gulf producers, with support from the U.S. Navy, were moving crude through the strait despite Iran in late September, according to CNN. That aligns with reporting that Iran's ability to choke off oil flowing through Hormuz was breaking down, weakening its leverage in talks with the United States, according to the Wall Street Journal.

The strait, the narrow sea passage between Iran and the Arabian Peninsula, is a central route for world oil and natural gas. Flows through Hormuz in 2022 and the first half of 2023 made up more than one-quarter of total global seaborne traded oil. Between 2022 and 2024, volumes of crude oil and condensate, a light form of oil, transiting the strait declined by 1.6 million barrels per day. The U.S. Energy Information Administration estimated that 89% of the crude oil and condensate that moved through Hormuz went to Asian markets in the first half of 2025.

To understand why that route matters so much, consider who feels a disruption. For importers in Asia, disruption is supply risk. For Gulf exporters, it is fiscal risk, or risk to government budgets that depend on oil sales.

Diplomacy had produced a partial framework months before the rebound. In a June 2026 memorandum of understanding, Iran agreed to make arrangements using its best efforts for the safe passage of vessels. Shipping traffic through Hormuz increased following the June 18 memorandum involving the United States. Thai Prime Minister Anutin Charnvirakul told reporters that Iran had permitted Thai oil tankers to pass through the strait. Uncertainty around reopening the strait still contributed to highly volatile prices in April and May.

September was not a smooth restoration. Saudi oil moving through Hormuz averaged about 2.9 million barrels per day over the six days before September 22, according to satellite and tracker data. Over the weekend before September 21, only 17 commodity vessels transited the strait, down from 37 a week earlier, according to shipping data. The drop captured persistent hesitation among owners and charterers even as physical volumes began to climb.

For context on why shipping has not fully normalized, insurance is the binding constraint. War-risk premiums, crew clauses and coverage exclusions shape commercial decisions faster than official statements. Until underwriters, the firms that price shipping insurance, treat Hormuz as routine transit, some operators will reroute, delay or demand higher freight. Geopolitical risk functions the same way. A single interception or strike can freeze bookings that took weeks to rebuild.

The broader context here is leverage, not just logistics. Tehran has long treated Hormuz disruption as coercive capital in negotiations with Washington. Sustained Gulf exports under U.S. naval escort reduce that capital. If buyers conclude that 16 million barrels per day can move under protection, threats to close the waterway lose credibility. That does not end the confrontation. It changes the bargaining range.

Looking at what this means for energy security, the concentration of exposure remains stark. Reuters calculations in August showed almost half of the world's oil came from countries affected by conflict in 2026. Hormuz is one chokepoint, like a bottleneck where a wide flow must pass through a narrow point, in a system with several stressed nodes. Recovery in one corridor eases prompt balances for crude and LNG. It does not resolve upstream outage risk elsewhere.

Looking ahead, the questions now are sequencing and durability. Will the June memorandum harden into rules for notification, escort and liability, or remain a best-efforts understanding tested voyage by voyage? Will insurers follow physical flows and narrow premiums, or hold wide spreads through the next negotiating round between Iran and the United States? Traders will watch Saudi and Emirati loadings, Asian refinery intake, and LNG arrivals for confirmation that September was restoration rather than reprieve.