Saudi Arabia Shut Its Only Oil Route Around Hormuz; Brent Hit $108
Friday, September 118 Min Read
Drones launched from Iraq struck the pumping stations of the 1,200-kilometer pipeline that carries Saudi crude to the Red Sea without entering the Strait of Hormuz. With Hormuz closed since March, one of the kingdom's two remaining exits went out of service.
7 Million Barrels
Daily Capacity of the Line
1,200 Km
Eastern Fields to Yanbu
6 Million Barrels
Saudi Crude Supply, August
$108.34
Brent Crude, September 14
In This Piece6 Sections
On the night of September 11, Saudi Arabia shut a pipeline.
On Monday, Brent crude reached $108.34, a four-month high.
Between the two sits 1,200 kilometers of steel pipe. And no other way out.
What the Closed Line Was For
The East-West crude oil pipeline opened in 1981. It links the production fields in the kingdom's east to the port of Yanbu on the Red Sea.
Its purpose fits in one sentence: move Saudi crude to the world without ever entering the Strait of Hormuz.
Nameplate capacity is 7 million barrels a day. Reported figures for recent throughput diverge; accounts put August flows near 2 million barrels a day and earlier wartime flows at 4 to 5 million.
On September 10-11, pumping stations in the Riyadh and Medina regions were hit by drones. On September 13, the Iraqi Prime Minister's Office confirmed the drones had been launched from Maysan province in southern Iraq.
Saudi Arabia shut the line on September 11 as a precautionary measure.
Hormuz Was Already Closed
This is where the line's importance sits.
The Strait of Hormuz has been effectively closed by Iran since March. Daily transit volume has fallen from 20 million barrels before the war to between 6 and 9 million.
According to the International Energy Agency's September report, Saudi crude supply fell 2.3 million barrels a day in a single month to 6 million barrels a day in August. The lowest level in more than three decades.
The same report projects global supply will decline by 5.7 million barrels a day in 2026, roughly 6%.
Daily Transit Through the Strait of Hormuz
The kingdom was supplying less not because it could not produce, but because it could not ship. The line that closed was one of the two remaining doors.
What the market priced in 2019 was a loss of production.
What it is pricing now is a door.
Spare Capacity Has an Address
The shock absorber of the oil market is spare production capacity: when supply is cut in one place, a valve opens in another.
April 2026 assessments put OPEC+ spare capacity above 5 million barrels a day. The breakdown given was Saudi Arabia 3 million, the United Arab Emirates 1 million, Kuwait 400,000 and Iraq 300,000 barrels.
The problem with that table is not the total. It is the address.
In 2019 It Was Production That Was Hit
Seven years ago, on September 14, 2019, the Abqaiq and Khurais facilities were struck by drones and missiles. That attack halted 5.7 million barrels a day of production, the largest outage by volume in the modern history of oil.
Brent rose as much as 19.5% intraday that session, to $71.95. The largest intraday jump on record.
Abqaiq has been hit again in this war. But what went out of service on September 11 was not a facility. It was a route.
A processing plant gets repaired. A route does not get repaired; it either opens or it does not.
Timeline
- March 2026Iran effectively closes the Strait of Hormuz.
- September 10-11Drones launched from Maysan strike the pumping stations.
- September 11Saudi Arabia shuts the line; Brent ends the week up more than 8%.
- September 13Iraq's Prime Minister's Office confirms the drones came from its territory.
- September 14Iran-Gulf talks in Oman are postponed; Brent reaches $108.34.
What the Market Did
US indices fell on Monday. Oil was not the reason; the session was set by selling in AI stocks.
Among sectors, only energy and communication services closed higher.
Refiners have been the winners of the year. Valero and Marathon Petroleum have each returned triple digits over the past twelve months, and the driver is not the price of crude but the refining margin. Product inventories are low and capacity is tight.
The side paying the bill showed up the same day. airBaltic, Latvia's flag carrier, filed for Chapter 11 protection in New York on Monday, citing jet fuel costs that the war has doubled.
The Part That Does Not Fit
After the attack, Saudi Arabia said it reserved the right to take all measures necessary to protect its interests. It then declined to retaliate at Iraq's request.
There is a claim of right on the table and no decision carried out. Those are two different things.
The repair timeline is also unsettled. Estimates run from reopening the line within days to five or six weeks of work, while Yanbu holds five to seven days of export stock.
The rate side is working at the same time. The 10-year Treasury yield reached its highest level since 2023 on Monday, and the Fed is expected to raise rates on September 16 for the first time since 2023. Energy prices are one of the line items carrying that inflation expectation.
This article draws on the September 11 pipeline reports from CNN and CNBC, Al Jazeera's September 14 explainer on the line's function, reported figures from the International Energy Agency's September Oil Market Report, Reuters coverage of the airBaltic filing and US Energy Information Administration data on the 2019 Abqaiq outage. Sources give different numbers for the line's recent daily throughput and for its repair time; both are presented here as ranges. The OPEC+ spare capacity breakdown comes from April 2026 market assessments rather than an official statement.
Companies in This Piece
Since The Event