# IEA Cuts 2026 Oil Demand and Supply Outlook as Iran War and Hormuz Slowdown Reshape Flows

*Friday, September 11, 2026 at 8:05 AM UTC — Hamer Intelligence Services Desk*

**Published**: 2026-09-11T08:05:51.379Z (1h ago)
**Category**: markets | **Region**: Global
**Importance**: 10/10
**Sources**: OSINT
**Permalink**: https://hamerintel.com/data/articles/17519.md
**Source**: https://hamerintel.com/summaries

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**Deck**: The International Energy Agency lowered its 2026 oil demand forecast by 2.5 million barrels per day and cut its supply outlook by 1.3 million bpd, citing the prolonged Iran war and a U.S.–Iran talks impasse. Falling traffic through the Strait of Hormuz and knock‑on effects from Gulf disruptions are feeding into the new numbers.

The war involving Iran is now showing up directly in the International Energy Agency’s medium‑term forecasts.

On 11 September, the IEA sharply reduced its projections for both global oil demand and supply in 2026. It now expects world oil demand to drop by 2.5 million barrels per day from 2025 levels, a deeper fall than the previously forecast 1.6 million bpd decline. On the supply side, the agency cut its 2026 forecast by 1.3 million bpd, seeing production average 100.7 million bpd, down sharply from 2025.

In its latest assessment, the IEA linked the demand downgrade to the prolonged Iran war and an impasse in U.S.–Iran talks. The conflict has hit energy infrastructure in Iran, raised the risk of attacks on regional assets and clouded the outlook for oil flows from the Gulf.

One sign of that strain is visible at the Strait of Hormuz, the narrow waterway between Iran and Oman that carries much of the Gulf’s seaborne oil and gas exports. Data from analytics firm Kpler, cited by Reuters, showed that only seven vessels crossed the strait on Thursday, down from 11 the day before and well below the 10‑day average of 15. Just two of those ships were outbound, and none carried oil. The figures don’t include any vessels that may have transited with their AIS trackers turned off, but they point to a clear slowdown.

Qatar, which was the world’s biggest LNG exporter before the war, illustrates how these pressures can cascade. The conflict knocked out two of Qatar’s 14 LNG trains at Ras Laffan. Repair times are estimated at three to five years, and revenue losses at about $20 billion a year. With the Strait of Hormuz now considered too dangerous for regular LNG traffic, Qatar’s exports have dropped by about 96%, leaving only a single train operating. The country is now in talks to buy U.S. LNG under long‑term contracts, a reversal driven by war‑related damage and shipping risk.

On the consumer side, governments are starting to move domestic prices in response. China has announced an additional fuel price rise, explicitly citing the Iran war. That pushes higher transport and input costs onto households and businesses at a time when many economies are already wrestling with inflation and weak growth.

Conflict‑related attacks and threats elsewhere in the region are also feeding into the risk calculus. Open‑source analysis of satellite images, for example, has reported six “hot spots” along Saudi Arabia’s main oil pipeline between Abqaiq and Yanbu, suggesting the line may have been hit by Houthi forces. The pipeline can carry 5–7 million barrels per day. There is no official confirmation from Saudi authorities, but even the suspicion that such a line has been targeted adds to perceived vulnerability.

Taken together, these pressures help explain why the IEA is now building lower demand and supply into its baseline. The war has damaged infrastructure, made a key choke point less reliable and forced both exporters and importers into more cautious planning.

In the months ahead, the critical indicators will be whether vessel traffic through Hormuz returns toward its previous averages, how quickly damaged Gulf and Qatari facilities can be repaired, and whether more major importers follow China in raising domestic fuel prices. Any breakthrough in U.S.–Iran diplomacy, or a confirmed large‑scale attack on Saudi or Emirati export systems, would likely prompt another revision of the IEA’s 2026 outlook.