Brent crude is back over the $90 line. Reuters had it at $90.32 a barrel, up $2.22 (+2.52%) in Asian hours this morning, with WTI at $85.41 (+2.41%). Brent settled at $88.29 on Friday, so this is a clean break back through a level it lost last week.

What actually happened. US forces struck two Iranian rocket launchers on Larak Island, inside the Strait of Hormuz, on Sunday. CENTCOM's stated reason: the IRGC was preparing to fire rockets carrying sea mines into the strait. It was the first American strike on Iran since late July. Iran hit back on Monday with ballistic missiles and drones at two US air bases in Jordan — Jordanian air defences intercepted eight missiles, with no reported casualties or damage.

The number that moves the price isn't the strike, it's the traffic. Visible commodity vessel traffic through Hormuz fell to roughly five ships a day over the weekend. CENTCOM's tally as of Aug 30: 83 commercial vessels redirected, 3 disabled, 2 boarded. UKMTO reported a tanker hit by a projectile while transiting on Saturday. Hormuz carried about a fifth of global oil before this conflict started; Goldman's estimate last week had Gulf exports back at only 15–16m barrels a day versus 22–24m pre-conflict. New mine-laying lands on a flow that is already down roughly a third.

Don't blame oil for the whole Asian selloff. KOSPI is off ~2.1% and the Nikkei ~1.7%, with SK Hynix down 3.5% to ₩1.595m and Samsung down 2.5% to ₩250,500 — but the main driver there is Fed Chair Kevin Warsh's hawkish Jackson Hole speech, which pushed September hike odds to about 57% from ~35% and took the 2-year yield to a one-month high near 4.33%. Oil is the second weight on the scale this morning, not the first.

Who feels the crude leg. Asian refiners. BPCL, HPCL and IOC buy crude at import parity but sell petrol and diesel at effectively administered pump prices, so every dollar on Brent squeezes marketing margin rather than getting passed through. ONGC and Oil India sit on the other side and book higher realisations on the same barrel. And with transits at ~5 a day, importers pay more than the $90 headline once freight and war-risk insurance are stacked on.

The risk to this. This premium has deflated twice already — Brent fell more than 5% last week as traders started treating Iran as an economic story rather than a supply cut. Two concrete things to watch: whether Brent holds $90 through the week, and whether daily Hormuz transits climb back off the ~5-vessel floor. If the mine-laying stops and transits normalise, this unwinds as fast as it came.

As of 09:40 IST / 00:10 ET, 31 Aug 2026. Sources: Reuters via Investing.com, OilPrice.com, Investing.com Asia, The National. For discussion and education only — not investment advice. Verify before acting.