Iran's crude exports have collapsed under a renewed U.S. naval blockade, and Washington is betting economic pressure succeeds where airstrikes failed. Tehran says diplomacy remains possible but only if regional wars end first, while independent data show Hormuz traffic far below the White House's own figures.
Iran loaded about 260,000 barrels per day for export in August, a decline of more than 80% from the 1.7 million bpd it shipped in August 2025, according to data the trade intelligence firm Kpler shared Thursday. President Donald Trump reimposed the naval blockade on July 14 after Iran attacked oil tankers transiting the Strait of Hormuz.
Washington shifts from strikes to sanctions
Trump turned to economic warfare after a dozen waves of July airstrikes failed to break Tehran's claim to control Hormuz. Treasury Secretary Scott Bessent launched "Operation Economic Outcast" on Monday, a campaign aimed at severing Iran's financial connections worldwide. Kpler's Matt Smith described the blockade on Iranian crude oil exports as very effective, and the U.S. military has redirected 75 commercial ships, disabled three vessels and boarded two to enforce compliance, Central Command said.
Tehran's crude loadings are down about 70% in August from 893,000 bpd in July. Iran has roughly 20 million barrels sitting on tankers in Asia awaiting discharge to China and can probably store about another 20 million barrels onshore before storage runs out, Smith said.
Iran ties Hormuz reopening to regional wars
Iranian Foreign Minister Seyed Abbas Araghchi said "putting diplomacy back on track isn't impossible," writing on X that renewed talks hinge on Washington accepting that pressure doesn't work. But Mohsen Rezaei, secretary of Iran's Supreme National Security Council, said any understanding on Hormuz requires an end to the wars in Gaza, Lebanon and Syria. Trump, meanwhile, told reporters Thursday the U.S. is not currently talking with Iran.
Traffic figures diverge sharply
Trump said Wednesday the strait is functioning, with 10 million barrels exiting the waterway Tuesday, but independent trackers report far lower volumes. Kpler tracks between 5 million and 6 million bpd transiting the strait, about a third of the 15 million bpd that moved through before the war began on Feb. 28. Separately, commercial traffic has collapsed to roughly a dozen vessels per day, down from a pre-conflict norm of about 130 daily transits.
Brent crude dipped 0.1% to $89.63 a barrel Friday as traders kept watching Hormuz flows. WTI fell 0.5% to $83.11 the same day. An oil tanker was struck by an unidentified projectile in the strait the same day Trump described the situation as mild, underscoring the gap between the administration's account and conditions on the water.
Sources: CNBC, CNBC, Crypto Briefing
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