The IEA released 400 million barrels of emergency reserve — that was the visible floor. But there was a second, hidden floor: the US dark fleet. For weeks, supertankers with transponders off were transiting Hormuz at night, moving ~2M bbl/day secretly. JPMorgan estimated this. Trump confirmed it on June 10. Iran found out and declared Hormuz hard-closed on June 11, firing on ships. Brent jumped from $91 to ~$95. The dark fleet floor is gone. Now only the IEA buffer remains — and it expires in ~3.5 months.
Select a country at the top to compare the pressure directly. Figures are sourced snapshots, not live APIs, meant to show how the same disruption lands differently across economies. Scroll down for the full supply/demand balance analysis.
The Hormuz blockade removed 10 million barrels per day from global supply. Brent was at $91-93 because six known offsets — plus one undisclosed one — were masking the true gap. On June 10, Trump revealed the hidden offset: a US dark fleet covertly moving ~2M bbl/day through Hormuz. Iran found out and hard-closed the strait. The dark floor is now gone. Brent repriced instantly to $95. Only the IEA buffer remains — expiring in ~3.5 months.
The IEA buffer (~2.5M bbl/day) is the last remaining artificial price support. The US dark fleet was an unofficial second floor — now exposed and stopped. Brent has already repriced from $91 to ~$95 with Iran hard-closing Hormuz. The October cliff now arrives from a higher baseline with less cushion. When the IEA buffer expires around October 1: the 2.5M bbl/day floor vanishes, the full ~3.5M bbl/day net gap reasserts, and the harvest shortfall from the under-fertilized spring planting arrives simultaneously in grain markets. Analysts projected Brent at $110–$140+ under the old scenario; starting from $95 with a harder closure, that range may now be conservative. Iran has threatened to also activate the Bab al-Mandab Strait (Red Sea). The dark fleet disclosure was a critical operational error — it ended the mechanism that was buying the deal extra months.
Hormuz disruption affects more than oil tankers. It also hits liquefied natural gas cargoes from Qatar and the UAE, and liquefied petroleum gas flows used for cooking, heating, and petrochemical feedstock across Asia.
S&P Global estimated the disruption was removing around 150 million cubic meters a day of delivered LNG supply during March and April, tightening competition for spot cargoes across Asia and Europe.
Open sourceRystad said constrained traffic and delayed production normalization could keep Asian spot LNG much higher through 2026, especially in import-dependent markets.
Open sourceReuters reported that Asian importers were scrambling for propane and butane from the Americas, with April spot premiums soaring to record highs and much longer shipping times than Middle East routes.
Open sourceThese links are dated source snapshots used to build the current view. They open in a new tab so readers can inspect the reporting directly.
Price moves happen first because markets react instantly. Physical shortages take longer: ships need rerouting, cargoes need insurance, refiners need feedstock, and local distributors need certainty before they refill tanks.
We build standalone sites, but the stories thread together. One blockade in the Gulf — and a parallel thread on the attention economy.