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World risk · Energy and resources · Gulf & Hormuz (Iran war)

Saudi barrels return and Brent falls below US$70

The test Between 25 Oct 2026 and 25 Oct 2027, Saudi crude output reaches 10 mb/d or more in a month (OPEC secondary sources or the IEA), and in that month or a later one inside the window the EIA's monthly average Brent spot price is below US$70/bbl.

Not under way · Confidence: medium · Reviewed 25 Oct 2026 · Scores from 1 to 10

This page answers: What could happen, how it is scored, and who is exposed?

Using this page
  1. Read the two scores: Likelihood and Impact are kept apart.
  2. Check what is happening, each fact with its source.
  3. Use the calendar for the dates to watch.

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Likelihood
3Low steady this month
Impact
6Elevated steady this month
Breadth8
Depth8
Duration5
Hard to substitute4
Canada pointNot added0

Impact is the average of the four parts, rounded, plus one point when Canada is directly hit on two or more channels, up to 10.

Two separate scales from 1 to 10. Strature never multiplies or merges them.

What changed

Dated, newest first

  1. Brent spot US$115.22 on 20 Oct, US$130.18 on 8 Oct [5]
  2. Brent monthly average US$114.16 in September 2026, US$70.89 in February 2026; below US$70 in Apr, May, Aug-Dec 2025 and Jan 2026 [6]
  3. IEA: Saudi supply 8.3 mb/d in September, 2.18 mb/d below an implied target of 10.48 mb/d [2]
  4. IEA: world supply 100.7 mb/d in 2026, +7.7 mb/d in 2027; demand +2 mb/d in 2027; stocks 509 mb below end-February [2]
  5. Saudi crude output 8.001 mb/d in September 2026, up from 7.257 mb/d in August (OPEC MOMR via Interfax) [1]
  6. OPEC+ produced 30.753 mb/d in September against a plan of 36.206 mb/d; UAE output 3.917 mb/d, outside OPEC and OPEC+ [1]
Show 4 earlier changes
  1. Saudi required level for November 10.5 mb/d [4]
  2. EIA: Brent US$105 in 4Q26, US$84 in 2027, US$74 in 4Q27; most Gulf output back by end-2Q27 [7]
  3. Canada energy exports C$19,032m in August 2026 (seasonally adjusted), up 4.7%; crude exports up 2.1% on higher prices [14]
  4. Seven OPEC+ countries kept September required levels for November; next meeting 1 Nov [3]

Why it matters

Saudi Arabia pumped about 8 mb/d in September, against an OPEC+ required level of 10.5 mb/d. Brent averaged US$114.16 that month. The IEA expects world supply to rise 7.7 mb/d in 2027 against a partial demand recovery of 2 mb/d; if Gulf output comes back fast while the UAE, now outside OPEC, also pumps, prices could fall back below US$70, where they sat for much of 2025. In January 2026 Saudi output was above 10 mb/d while Brent averaged under US$70. This is a risk scenario, not a price forecast or a view on any oil contract or security.

Why Likelihood 3 Pushes: 2027 supply up 7.7 mb/d against a partial 2 mb/d demand recovery, required levels far above output, the UAE outside quotas, EIA 4Q27 Brent US$74. Brakes: stocks 509 mb below end-February, attacks on the bypass, no EIA 2027 quarter below US$70, OPEC+ can hold or cut.

Why Impact 6 Threshold case one month with Brent below US$70, from US$115.22 on 20 Oct.

The other facts on file (3)
  • Alberta Q1 2026-27: WTI US$73.50 (budget US$60.50), C$2bn surplus, C$23bn resource revenue [8] (27 Aug 2026)
  • Each US$1 fall in WTI cut Alberta revenue by at least C$750m in 2025/26 [9] (20 Feb 2026)
  • IEA: Saudi crude supply 10.28 mb/d in January 2026, 9.70 mb/d in December 2025 [13] (12 Feb 2026)

Where it sits

Strait of Hormuz11. Saudi barrels return and Brent falls below US$70: Elevated impact · unlikely1 · Elevated impact · unlikelyStrait of HormuzAFGHANISTANUAEIRANIRAQKUWAITOMANSAUDI ARABIATHE GULFGULF OF OMAN0500 kmat 26°NMap data: Natural Earth (public domain).
Strait of Hormuz11. Saudi barrels return and Brent falls below US$70: Elevated impact · unlikelyStrait of HormuzUAEIRANKUWAITOMANTHE GULF0300 kmat 26°NMap data: Natural Earth (public domain).

How it spreads

If

Between 25 Oct 2026 and 25 Oct 2027, Saudi crude output reaches 10 mb/d or more in a month (OPEC secondary sources or the IEA), and in that month or a later one inside the window the EIA's monthly average Brent spot price is below US$70/bbl.

Not under way

Channels 4 on the card

  1. Canada, budgetsAlberta's C$23bn of resource revenue rests on US$73.50 WTI [8]; each US$1 is worth at least C$750m [9].
  2. Canada, exportsEnergy exports of C$19.0bn a month (Aug 2026) [10][14] would fall in value.
  3. EnergyA fall from about US$115 [5] to below US$70 would cut Brent by about two-fifths (Strature arithmetic); importers gain, producers' budgets lose.
  4. Public financesGulf budgets already in deficit; other producers assume higher prices.

Sectors 2

  • Energy and pipelines
  • Banks and insurers

Who is exposed

Countries
Saudi Arabia, United Arab Emirates, Canada
Sectors
Energy and pipelines, Banks and insurers
Goods
Crude oil, Refined fuels
Straits
Strait of Hormuz

Three scenarios and their signposts

  1. S1

    Slow return

    Gulf output recovers through 2027 and prices fall gradually, staying above US$70.

  2. S2

    The race

    Saudi output nears 10.5 mb/d while the UAE pumps freely; OPEC+ does not cut and Brent falls below US$70.

  3. S3

    War again

    A renewed strike on Iran or on the Saudi bypass keeps output shut in and prices high.

The signposts of each scenario
PathSignpost
S1The EIA keeps 4Q27 Brent above US$70
S2An OPEC+ meeting that raises required levels while prices fall
S3F-0074 resolving yes on 20 Nov 2026. Strature forecast F-0074: 61% (21 Aug 2026)

No probability is given for the three paths.

Forecasts

Strature forecast linked to this risk

61%F-0074 · A renewed US or Israeli strike on Iran, 22 Aug-20 Nov 2026 (operative)
Strature forecast F-0074: 61% (21 Aug 2026) · resolves by 20 Nov 2026
050100%

Where the card uses it F-0074 resolving yes on 20 Nov 2026. Strature forecast F-0074: 61% (21 Aug 2026)

A forecast is a probability on a dated question. The Likelihood score above is a separate judgement and is never turned into a percentage.

The forecast register lists every forecast and how it is scored.

Dates to watch

Calendar

The dates to watch

A dot is a day, a bar a month or a year; a hollow mark is tentative. The line marks today.

  1. 1 Nov 2026 OPEC+ meeting of the seven countries [3] Declared · Outside event

    Remind me

  2. 20 Nov 2026 F-0074 resolves: renewed US or Israeli strike on Iran. Strature forecast F-0074: 61% (21 Aug 2026) [12] Declared · Strature date

    Remind me

  3. 30 Jun 2027 EIA's expected return of most Gulf output to pre-conflict levels [7] Tentative · Window

    Remind me

Sign in, with alerts on, for an email 7 days and 1 day before.

SourceStrature world-risk card; the dates cite the sources below.
Exhibit R-3 · SAUDI ARABIA · strature.net

The other side

Lower prices would cut fuel bills for importers and households, Canada's included, and ease inflation. Refiners and airlines gain; for Canada, the gain at the pump offsets part of the provincial revenue loss.

Connected in Strature

Sources

13 sources, numbered as the text cites them

  1. OPEC monthly report: Saudi crude output, September 2026. Interfax · 13 Oct 2026 · News · confidence medium · retrieved 25 Oct 2026
  2. Oil Market Report, October 2026. International Energy Agency · 14 Oct 2026 · International body · confidence high · retrieved 25 Oct 2026
  3. OPEC+ to keep oil output unchanged in November. Bernama (Xinhua) · 4 Oct 2026 · News · confidence medium · retrieved 25 Oct 2026
  4. OPEC+ keeps November 2026 production targets unchanged amid supply disruptions. Enerdata · 6 Oct 2026 · Industry · confidence medium · retrieved 25 Oct 2026
  5. Europe Brent spot price FOB, daily. US Energy Information Administration · 21 Oct 2026 · Official · confidence high · retrieved 25 Oct 2026
  6. Europe Brent spot price FOB, monthly. US Energy Information Administration · 21 Oct 2026 · Official · confidence high · retrieved 25 Oct 2026
  7. Short-Term Energy Outlook, October 2026: global oil markets. US Energy Information Administration · 6 Oct 2026 · Official · confidence high · retrieved 25 Oct 2026
  8. Alberta first-quarter fiscal update 2026-27. Government of Alberta · 27 Aug 2026 · Official · confidence high · retrieved 25 Oct 2026
  9. How will Alberta deal with low oil prices in next week's budget?. C.D. Howe Institute · 20 Feb 2026 · Think tank · confidence medium · retrieved 25 Oct 2026
  10. Canadian international merchandise trade, August 2026. Statistics Canada · 6 Oct 2026 · Official · confidence high · retrieved 25 Oct 2026
  11. Forecast register, F-0074 (S-001). Strature · 21 Aug 2026 · Think tank · confidence high · retrieved 25 Oct 2026
  12. Oil Market Report, February 2026. International Energy Agency · 12 Feb 2026 · International body · confidence high · retrieved 26 Oct 2026
  13. Merchandise trade by product (NAPCS), balance-of-payments basis, seasonally adjusted, Table 2. Statistics Canada · 6 Oct 2026 · Official · confidence high · retrieved 26 Oct 2026

Reviewed 25 Oct 2026 · version 1 · last change: reviewed · All risks