Aramco CEO Warns Global Oil Inventories Are ‘Scarily Thin’

Saudi Aramco chief executive Amin Nasser told energy executives in London on Monday that the world’s cushion of readily available crude has worn dangerously thin, even as tanker-tracking data point to a recovery in oil flows through the Strait of Hormuz. Speaking at the Energy Intelligence Forum, Nasser said inventories built up over years of surplus have been drawn down faster than most governments and companies are prepared to admit.

“Scarily thin,” in Nasser’s own words

“The system is already straining,” Nasser said, according to Energy Intelligence and OilPrice.com, which both covered the speech. “The supply resilience cushion is scarily thin.” He added that releases from government emergency reserves can soften a single bad winter but “cannot fix long-term supply.” Nasser’s framing was notable because Aramco, as the world’s largest oil producer, has consistently played down the severity of disruptions this year, including attacks that Houthi forces have claimed against Saudi facilities. On Monday, he instead used his platform to warn that the market’s focus on short-term price moves is obscuring a more serious depletion of the buffer that normally absorbs supply shocks.

What has actually been lost since the Iran war began

Nasser’s math, as relayed by the outlets covering the forum, put gross global oil supply losses since the outbreak of the Iran war at close to 3 billion barrels, concentrated in the roughly 50% of normal Hormuz-transiting crude and products that the conflict disrupted. Commercial inventories that started the year near 10 billion barrels have fallen by more than 1 billion barrels, and Nasser argued that most of the roughly 6 billion barrels still sitting in tanks and pipelines worldwide are not realistically available to the market — they are working stock needed to keep refineries and distribution systems running, not a deployable surplus.

That assessment lines up with a separate report published earlier Monday, in which tanker-tracking firms said crude volumes moving through Hormuz are nearing pre-war levels. The two findings are not contradictory: a recovery in tanker traffic through the strait does not by itself refill inventories that were drawn down over months of reduced flow, and Nasser’s point was specifically about the depleted buffer, not the current pace of shipments.

Saudi Arabia’s pipeline as a release valve

Nasser credited Saudi Arabia’s East-West Pipeline, which can move crude overland from the Gulf coast to the Red Sea port of Yanbu and bypass Hormuz entirely, with preventing what he suggested could have been a spike toward $200 a barrel for Brent had the line not been available. The pipeline was itself targeted in a recent attack, Nasser said, but Aramco has since restored flows through it to around 80% of capacity. The episode illustrates why Saudi Arabia has spent decades maintaining Hormuz-bypass infrastructure as a strategic hedge, even in years when the strait faced no disruption at all.

A G7 release program that is still catching up

Governments have not been passive. The Group of Seven agreed on Friday, October 2, to release up to 100 million barrels through the International Energy Agency over four months, with a frontloaded diesel component given how tight middle-distillate markets have become. That builds on a broader commitment: IEA member countries have released 325 million of the 400 million barrels they pledged back in March, a program that has already pushed the US Strategic Petroleum Reserve to its lowest level since 1982. Nasser’s argument on Monday was essentially that these releases, while necessary, are a bridge rather than a fix — replenishing inventories to pre-crisis levels, he said, could take up to two years even after Hormuz fully reopens, because producers have to simultaneously meet current demand and rebuild stock.

A warning timed to the start of winter

Nasser’s choice of language was also a choice of timing. The Northern Hemisphere heating season is just beginning, and winter demand for diesel and heating fuels is typically when a thin inventory cushion gets tested hardest — a dynamic the G7’s decision to frontload the diesel component of its own release over the next 20 days implicitly acknowledges. A disruption that might be absorbed easily in a well-stocked spring market can move prices far more sharply once refiners, traders and governments are simultaneously drawing down the same depleted buffer to meet seasonal demand. That is the practical reason Nasser drew a distinction between emergency reserves “buying a winter” and actually fixing the underlying supply gap: the releases announced so far are sized and timed around getting through the next few months, not around restoring the market’s longer-term shock absorber.

Why the inventory story matters beyond one speech

Global spare capacity and inventory levels function as the market’s shock absorber. When that cushion shrinks, the same size of disruption — a tanker seizure, a pipeline strike, a single refinery outage — produces a larger price swing than it would have a year or two earlier, a dynamic this site has tracked through 2026. It is also the backdrop against which OPEC+’s decision to hold November output steady at 31 million barrels a day should be read: producers outside the group have little room to make up a shortfall if the buffer Nasser described keeps shrinking. Nasser’s comments are a reminder that the headline recovery in shipping volumes through Hormuz does not, by itself, tell the whole story of how exposed the market remains. For a company counting on OPEC+ discipline and emergency reserve releases to keep a lid on prices through the winter, the gap between “flows are recovering” and “the buffer is rebuilt” is the detail that matters most.

Sources

• Energy Intelligence, “Aramco’s Nasser Says Saudi Capacity Intact, Stocks Hitting ‘Stress Level’,” October 5, 2026 — used for confirmation of the Energy Intelligence Forum remarks and framing of inventory stress.
• OilPrice.com, “Aramco CEO Warns Oil Inventories Are ‘Scarily Thin’,” October 5, 2026 — used for direct quotes, inventory figures (starting/drawn-down/remaining barrels), Iran-war supply-loss estimate, East-West Pipeline detail and G7/IEA release figures.
• TheDailyEnergy.com, “Tanker Trackers Say Hormuz Oil Flows Are Nearing Pre-War Levels,” October 5, 2026 — used for context on the separate, concurrent recovery in Hormuz shipping volumes.

Illustrative image. Photo: Wilfredor, CC0, via Wikimedia Commons — source