Energy and Chokepoints

The Strait Was Declared Open. The Barrels Did Not Return.

On April 8 the White House announced that Iran had agreed to reopen the Strait of Hormuz. On September 2 the Governor of the Bank of Canada told a press conference that shipments through the Strait of Hormuz are still curtailed, that Canadian inflation is sitting at around three per cent with gasoline named as the main reason, and that stripping gasoline out leaves it at 2.2 per cent. Ten days later Saudi Arabia shut the pipeline built to carry crude around that strait, and Houthi forces took the island sitting in the other way out.

Two things can be on the public record at once and flatly disagree, and when one of them is a press release and the other is a central bank reading its own inflation data, the disagreement is the story. This piece sits in our Energy and Chokepoints beat, and it asks what this publication always asks: what does a strait on the other side of the world actually do to what a Canadian pays, and how much of that can be checked rather than assumed. The answer here is unusually specific, because the Bank of Canada has already published the arithmetic.

What the Strait of Hormuz Is Moving, Measured Rather Than Described

The International Energy Agency puts flows through the Strait of Hormuz at an average of 2.7 million barrels per day across March, April and May, against roughly 20 million barrels per day before the conflict. The same agency puts cumulative Middle Eastern supply losses since the conflict began at more than 1.3 billion barrels. Confirmed Measured

In its September Oil Market Report the agency records global oil production falling by 1.6 million barrels per day month over month in August, with more than 10 million barrels per day of Gulf output still shut in on security grounds, and refinery throughput down 4.2 million barrels per day year over year. Confirmed Measured

In March the agency's member countries agreed unanimously to release 400 million barrels from emergency reserves, which the agency describes as its largest ever stock release. Confirmed Measured

What a stock release is and what it is not. Emergency reserves are barrels that already exist, moved out of storage into the market. They substitute for production that is not happening. They do not restart it. A release of 400 million barrels set against a cumulative loss of more than 1.3 billion barrels is roughly three tenths of the hole, drawn from a finite store. That is arithmetic on two published agency figures, not a projection.

The Bypass Route Shut on September 12

Saudi Arabia temporarily closed its 1,200 kilometre East-West pipeline after a drone strike on facilities in the Riyadh and Madinah regions, halting the flow of exports along it. The closure was announced by the Saudi Press Agency and carried by Al Jazeera. Confirmed

That pipeline exists for one reason. It carries crude from the eastern oil fields to the Red Sea coast, which is to say it carries crude that does not have to pass through the Strait of Hormuz at all. It is the redundancy. With Hormuz flows already running at a fraction of their pre-conflict average, the route built to work when Hormuz does not is the route that stopped.

Saudi Arabia says the drones were launched from Iraq. That is Riyadh's attribution, carried by Al Jazeera, and it is a claim by an interested party about a third country. No group has claimed the strike, and Iraq has not publicly named a perpetrator. Attribute it to Saudi Arabia or do not repeat it. Confirmed as reported

What the pipeline's damage actually amounts to is not on the public record. Whether the pipe itself, the pumping stations, or the control systems were disabled has not been stated, and no repair timetable has been published. The closure is described by the operator as temporary. That is the operator's word for it, and it is the only word available. Confirmed as reported

The Other Way Out, and Who Now Sits On It

Al Jazeera reports that Houthi forces have seized control of Mayun Island, also called Perim, in the Bab al-Mandeb strait, and reports that both Yemeni government and Houthi officials confirmed it. Confirmed as reported

Bab al-Mandeb is the southern gate of the Red Sea. Crude that reaches the Red Sea coast by pipeline, rather than going out through Hormuz, still has to leave the Red Sea, and Bab al-Mandeb is how it does that. Mayun sits in the middle of it.

RouteWhat it is forStatus on the record
Strait of HormuzThe primary Gulf export exitFlows averaged 2.7 mb/d in March to May against roughly 20 mb/d pre-conflict, per the IEA. Described by the Bank of Canada on 2 September as still curtailed
East-West pipelineThe overland bypass to the Red Sea coastTemporarily closed after a drone strike, per the Saudi Press Agency, 12 September
Bab al-MandebThe Red Sea exit that the bypass route depends onMayun Island seized by Houthi forces, per Al Jazeera, 12 September
Two events on one day is a sequence. Nothing on the public record establishes a common actor or a coordinated plan behind the Yemen and Saudi events. They happened on the same day. That is a sequence, and sequence is all it is. The attribution for the pipeline strike is unresolved, and an unresolved attribution does not become a campaign when two things land inconveniently at once.

Two Claims About the Same Strait

On April 8, 2026 the White House published a release stating that Iran had, in its words, agreed to a ceasefire and reopening the Strait of Hormuz as the administration negotiated a broader peace agreement. The release is on the record and says exactly that. Confirmed

Set against it are three separate readings of what has moved through the strait since.

SourceDateWhat it says about the strait
The White House8 Apr 2026Iran has agreed to a ceasefire and reopening the Strait of Hormuz
International Energy AgencyMar to May 2026Flows averaged 2.7 mb/d against roughly 20 mb/d pre-conflict
International Energy AgencyAug 2026More than 10 mb/d of Gulf output remains shut in on security grounds
Bank of Canada2 Sep 2026Shipments through the Strait of Hormuz are still curtailed

The status of the Strait of Hormuz is reported differently by the administration that announced its reopening and by the agencies and central bank measuring what passes through it. We do not resolve it, and we do not pick the convenient version. Contradicted

Why the label is Contradicted and not something softer. The White House statement is a real statement, made on a real date, and that it was made is not in question. What is in question is the condition it describes. Three institutional readings taken between March and September, two of them from an energy agency and one from a central bank with no stake in the Iranian file, describe a strait that is not carrying what it used to carry. Both halves stay on the page with their dates attached, and the reader does the rest.

What the Strait of Hormuz Costs a Canadian Household

This is the part most coverage leaves out, and on this occasion it does not have to be inferred, because Canada's central bank published it.

On September 2 the Bank of Canada held its policy interest rate at 2.25 per cent. Confirmed Measured

In the opening statement to that decision, Governor Tiff Macklem said this:

“CPI inflation has remained at around 3% in recent months, mainly because of persistently high gasoline prices. This is a direct result of the conflict in Iran, which has kept global oil prices high and has led to elevated margins for refined products like gasoline and diesel. Excluding gasoline, inflation in Canada was 2.2% in July and measures of core inflation have remained close to 2%.”

Bank of Canada, Monetary Policy Decision Press Conference Opening Statement, 2 September 2026. Confirmed

Read the two numbers in that passage next to each other. Headline inflation around three per cent. Inflation excluding gasoline, 2.2 per cent in July. The distance between them is roughly eight tenths of a percentage point, and the Bank attributes it to gasoline, and attributes the gasoline price to the conflict and to the refining margins that came with it. That subtraction is arithmetic on the Bank's own two published figures. Confirmed Measured

The Governor also said, in the same statement, that the ongoing conflict in the Middle East is keeping energy prices higher for longer and that this has increased the upside risks to the outlook for inflation, and that with the conflict ongoing and shipments through the Strait of Hormuz still curtailed, those risks have increased. Confirmed

So the chain runs the whole way, and every link on it has a source and a date.

#LinkWhat is measuredAs of
1Chokepoint to Gulf supplyMore than 10 mb/d shut in; Hormuz flows 2.7 mb/d against roughly 20 mb/dAug 2026
2Supply to crude and product marginsGlobal oil prices high, refined product margins elevated, per the Bank of Canada2 Sep 2026
3Margins to the pumpPersistently high gasoline prices, per the Bank of Canada2 Sep 2026
4The pump to the inflation numberCPI around 3%; 2.2% excluding gasoline in JulyJul 2026
5The inflation number to policyPolicy rate held at 2.25%2 Sep 2026

Where the Chain Stops, and the Bank Says So Plainly

It would be easy to carry this one link further and write that a closed strait is raising the price of groceries. The Bank of Canada has addressed that directly, and its answer is no, or at least not yet. The Governor said the Bank is monitoring closely for signs that higher oil prices are spreading to the prices of other goods and services, and that it has not seen much evidence of that yet. Confirmed

He also said that the longer oil prices and refinery margins stay high, the greater the risk that higher energy prices spill over and turn into persistent inflation, and separately that monetary policy cannot offset the effects of tariffs or influence global energy prices. Confirmed

That last sentence is the one worth keeping. The instrument Canadians are used to hearing about when prices move is the policy rate. The Governor has stated that it does not reach this. A rate decision in Ottawa does not put barrels through a strait, and the Bank has said so in its own words rather than leaving anyone to infer it.

So the honest position, on the record as it stands today, is narrower and more useful than the headline version. One channel is open between the Gulf and a Canadian household, and it is gasoline. It is worth roughly eight tenths of a point on the inflation rate. The central bank is watching for it to widen and reports that it has not widened much so far. Anyone telling you this is already on your grocery bill is ahead of the evidence, and the evidence in question is published and dated.

What Is Already Dated, and What Is Not

Three things on this file carry their own dates and need no forecasting to state. The Bank of Canada's next scheduled decision follows its published calendar, with the September statement standing until then. The IEA's emergency release of 400 million barrels is a finite quantity already agreed. And the East-West pipeline closure is described by its operator as temporary, with no published repair timetable attached to that word.

Against those, the open items are open. The damage assessment on the pipeline has not been published. The attribution for the strike is unresolved. Whether Houthi forces hold Mayun Island is a question about the future and this publication does not answer those. What can be said is what the instruments read on 12 September 2026, and every reading above is printed with the address it came from.

Sources and verification

Addresses below are printed in full so you can copy one and check us. We do not link out.

Bank of Canada is the source of the 2.25 per cent policy rate, the quoted passage on CPI inflation at around three per cent and 2.2 per cent excluding gasoline in July, the attribution of high gasoline prices to the conflict and to refined product margins, the statement that shipments through the Strait of Hormuz are still curtailed, the statement that the Bank has not seen much evidence of spillover into other goods and services, and the statement that monetary policy cannot influence global energy prices. Opening statement, 2 September 2026. Fetched and the quoted passage confirmed word for word against the live page on 12 September 2026. Confirmed https://www.bankofcanada.ca/2026/09/opening-statement-2026-09-02/

International Energy Agency is the source of the cumulative Middle Eastern supply losses of more than 1.3 billion barrels and of the Strait of Hormuz flow average of 2.7 million barrels per day across March to May against roughly 20 million barrels per day before the conflict. Confirmed https://www.iea.org/commentaries/how-global-oil-supplies-have-readjusted-to-help-fill-the-huge-gap-left-by-the-strait-of-hormuz-shock

International Energy Agency, Oil Market Report, September 2026 is the source of the 1.6 million barrel per day month over month fall in global production in August, the more than 10 million barrels per day of Gulf output shut in, and the 4.2 million barrel per day year over year decline in refinery throughput. Confirmed https://www.iea.org/reports/oil-market-report-september-2026

International Energy Agency is the source of the unanimous member agreement to release 400 million barrels from emergency reserves and of its description as the largest such release. Confirmed https://www.iea.org/news/iea-member-countries-to-carry-out-largest-ever-oil-stock-release-amid-market-disruptions-from-middle-east-conflict

Saudi Press Agency is the source of the temporary closure of the 1,200 kilometre East-West pipeline, the drone strike on facilities in the Riyadh and Madinah regions, and the characterisation of the closure as temporary. It is also the origin of the attribution of the drones to a launch from Iraq, which is Saudi Arabia's own attribution about a third country and is labelled accordingly in the text. Confirmed https://www.spa.gov.sa/en/N2674116

Al Jazeera carries the Saudi statement on the pipeline closure and the pipeline's length, and is the source for the absence of any claim of responsibility and for Iraq not having named a perpetrator. Confirmed as reported https://www.aljazeera.com/news/2026/9/12/saudi-arabia-shuts-critical-oil-pipeline-after-drone-attack-what-happened

Al Jazeera is the sole source for the seizure of Mayun Island by Houthi forces and for the report that Yemeni government and Houthi officials both confirmed it. It rests on one outlet reporting two parties, which is one reporting chain, and it is labelled accordingly. Confirmed as reported https://www.aljazeera.com/news/2026/9/12/iran-backed-houthis-seize-strategic-mayun-island-can-they-hold-it

The White House is the source of the April 8, 2026 statement that Iran had agreed to a ceasefire and reopening of the Strait of Hormuz. Fetched and the quoted wording confirmed against the live page on 12 September 2026. That the statement was made is Confirmed. The condition it describes is Contradicted by the three readings tabled above. Confirmed https://www.whitehouse.gov/releases/2026/04/peace-through-strength-operation-epic-fury-crushes-iranian-threat-as-ceasefire-takes-hold/

Nothing published here is investment, legal or security advice. We report what has already happened and what it is recorded as costing. We do not forecast and we do not tell you what to do. Corrections are published in the open and logged, never made by silent edit.