U.S. blockade halts Iran crude exports for record 7 weeks

For the first time on record, Iran has gone approximately seven weeks without shipping meaningful crude exports through the Strait of Hormuz, as a U.S. naval blockade achieves what years of sanctions could not: cutting off Tehran's primary source of foreign-currency revenue.

Since the United States reimposed its blockade on July 14 as part of a six-month conflict with Iran, no Iranian crude cargoes have successfully transited the Strait of Hormuz to China, Tehran's only major remaining oil customer, according to tracking firms Kpler, Vortexa, and TankerTrackers.com.wtvbam+1

Exports in Free Fall

Iran loaded about 220,000 to 255,000 barrels per day of crude oil and condensate in August, according to Vortexa and Kpler estimates, down from roughly 740,000 bpd in July and about 2 million bpd in March. The loaded crude, however, has gone nowhere — 29 tankers carrying 36.11 million barrels remain trapped inside the strait, TankerTrackers.com co-founder Samir Madani told Reuters.reuters+1

"Even at the height of maximum-pressure sanctions in 2019-20, some Iranian crude cleared Hormuz every single month; at no point did outbound flows fall to near-zero for a sustained stretch as they have since mid-July," Vortexa analyst Claire Jungman said.wtvbam+1

The blockade sits between the Gulf of Oman and the Arabian Sea, where U.S. Navy vessels vet ships departing from and approaching Iranian ports. Beyond the blockade zone, dozens of Iran-linked shadow-fleet tankers remain active, with 51 vessels operating in the Gulf of Oman and another 81 making deliveries in Asia or waiting off Malaysia, according to David Tannenbaum of Blackstone Compliance Services.wtvbam

Economic Pressure Mounts

The collapse in exports is draining one of Iran's main sources of foreign-currency income. Kpler analyst Homayoun Falakshahi warned it could force Tehran to finance spending by printing money, risking even higher inflation. The International Monetary Fund estimates Iran's inflation rate at nearly 70% this year, the world's third-highest after Venezuela and Sudan.reuters+1

Iranian crude remains available for purchase from floating storage near Asia, with cargoes for September and October delivery to China being offered, traders said. But volumes are shrinking as no fresh supply arrives — total Iranian crude afloat fell to 107 million barrels from 135 million over the course of the blockade, according to Vortexa data.wtvbam

Last week, Washington sought to increase the pressure by threatening countries that continue trading with Tehran. "China can grab whatever's floating around in their neck of the woods, but that's about it for now, really," Madani said.cnbc+2