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Oil tops $100 as US and Iran trade tanker strikes at Hormuz

Crude returned to triple digits after US forces destroyed five Iranian tankers and Iran struck back at shipping and at a base in Jordan.

Assembled by Claude from 9 sources at 8 outlets · Wednesday, September 9, 2026, Morning edition, 10:27 AM EDT · no human byline

Disclosure. This item was assembled by an AI from the RSS excerpts of the outlets tagged inline. No human wrote or checked it before publication. Feed selection and categories are editorial choices by Teresa Lo. Nothing here is investment advice.

What happened

US Central Command said its forces destroyed five more Iranian oil tankers after missile attacks on a Navy warship apnews.com. The BBC reported that four of the vessels hit were in the Gulf of Oman and linked to Iran's Revolutionary Guards Corps, with another struck nearby bbc.com. CENTCOM said one of the ships, the M/T Riesco, sank in the Gulf of Oman kurdistan24.net. The US strikes were aimed at vessels intending to transit the strait apnews.com.

Iran's Islamic Revolutionary Guard Corps said its own strikes were retaliation for the US attack on five Iranian oil tankers, and that it had targeted US vessels and eight oil tankers in the Persian Gulf aa.com.tr. Iranian forces also attacked a US base in Jordan and ten ships near the Strait of Hormuz irishtimes.com. Tehran said the strait remains under its strong control, and treated the US attacks on tankers and commercial vessels as aggression aljazeera.com.

Why it matters to investors

Brent crude, the international benchmark, rose to $99.46 as CENTCOM confirmed the sinking kurdistan24.net. It cleared the round number soon after: oil hit $100 a barrel for the first time since July bbc.com, and Reuters reported crude topping $100 with equities sliding as tensions escalated reuters.com.

The physical market is tightening at the chokepoint itself. Six commodity vessels transited the Strait of Hormuz on Tuesday, down from nine a day earlier and below the ten-day average of about twelve reuters.com. Al Arabiya reported the same count from the same tracking data english.alarabiya.net. The shortfall is in transits rather than in a formal closure, which is the distinction Tehran itself has drawn in describing its hold on the waterway aljazeera.com.

The pass-through to policy is immediate. The euro edged higher ahead of the European Central Bank's decision on Thursday, with markets widely expecting a hike amid inflationary pressure reuters.com.

What to watch

Transit counts are the cleanest daily read on whether the disruption is easing or deepening reuters.com. A sustained shortfall against the ten-day average keeps a supply premium in the crude price without any formal closure of the waterway english.alarabiya.net.

The second variable is the exchange itself. Both sides have now hit shipping in consecutive rounds aa.com.trapnews.com, and Iran has extended its targeting to a US base in Jordan irishtimes.com. Tehran's framing – that the strait remains under its control rather than shut – points to interdiction rather than closure aljazeera.com.

The third is the width of the theatre. The US strikes reached vessels in the Gulf of Oman as well as ships bound for the strait bbc.comkurdistan24.net, while Iran's response ran from the Persian Gulf to Jordanian territory aa.com.tririshtimes.com. Markets have so far read each round through the crude price rather than through the shipping data reuters.com.

Sources

  1. bbc.com: Oil hits $100 a barrel for first time since July after US and Houthi strikes - BBC (2026-09-09)
  2. apnews.com: US military says it destroyed 5 more Iranian oil tankers after missile attacks on Navy warship (2026-09-09)
  3. irishtimes.com: Iran attacks US base in Jordan and 10 ships near Strait of Hormuz - The Irish Times (2026-09-09)
  4. reuters.com: Shipping traffic via Strait of Hormuz stays below 10-day average, data shows - Reuters (2026-09-09)
  5. english.alarabiya.net: Shipping traffic via Strait of Hormuz stays below 10-day average, data shows - Al Arabiya (2026-09-09)
  6. kurdistan24.net: Tensions Escalate as CENTCOM Says Iranian Vessel Destroyed in Gulf of Oman (2026-09-09)
  7. reuters.com: Oil tops $100, stocks slide as Middle East tensions escalate | Reuters (2026-09-09)
  8. aljazeera.com: Iran war live: US, Iran attack oil tankers; crude heads to $100 - Al Jazeera (2026-09-09)
  9. aa.com.tr: Iran says it targeted US vessels, 8 oil tankers in Persian Gulf in 'response to aggression' (2026-09-09)