Aramco CEO: Oil Inventories 'Scarily Thin', 2 Years to Rebuild

Saudi Aramco chief executive Amin Nasser said on 5 October 2026 that global oil inventories are "scarily thin" and could take up to two years to rebuild, even after the Strait of Hormuz fully reopens. Crude futures dipped slightly on Monday, with traders weighting improving Hormuz shipping and near-prewar output more heavily than the inventory warning. Nasser put practically available stocks at less than 10% of world inventories, down from roughly 10 billion barrels held when the crisis began.

Context — Why Nasser's Inventory Warning Matters Now

Nasser's warning lands at the point where the market's two biggest supports — stored barrels and disrupted supply — are both fading. Roughly 3 billion barrels of supply have been lost since the war in Iran began, and more than 1 billion barrels have been drawn from stockpiles to fill the gap, largely from onshore commercial storage. Nasser characterised those releases as the last major tool available to the market.

That framing matters because the market has already spent its cushion. Of roughly 10 billion barrels held in global stocks at the start of the crisis, less than 6 billion remain as commercial inventory, and most of that cannot realistically be drawn on. The buffer that absorbed the initial shock is now a fraction of what it was.

The catalyst chain runs in two directions at once. On the supply side, production is approaching prewar levels, helped by weaker Iranian military capabilities and stepped-up US naval security. On the demand side, nothing has replaced the lost barrels except storage withdrawals that are now largely exhausted.

Nasser also flagged damage to refining infrastructure across the Middle East, which continues to limit how much crude can be turned into fuel. That constraint sits alongside China's suspension of fuel exports, which was designed to protect domestic supplies but removes another source of refined product for global buyers.

His comments suggest a full Hormuz reopening may not quickly ease market tightness. Depleted inventories leave the market with little cushion against any further disruption for some time, which is a different problem from the one traders appear to be pricing.

Data — What the Numbers Show

The scale of the drawdown is the headline figure. Nasser said around 3 billion barrels of supply have been lost since the war in Iran began, while more than 1 billion barrels have been released from stockpiles. That leaves less than 6 billion barrels of commercial inventory from a starting base of roughly 10 billion, with less than 10% of the total practically available.

Metric	Pre-crisis	Current
Global oil stocks	~10bn barrels	<6bn commercial
Practically available	—	<10%
Supply lost since war	—	~3bn barrels
Stockpile releases	—	>1bn barrels
Rebuild requirement	—	+2m bpd over 18 months

To rebuild stocks while meeting ongoing demand, Nasser estimated the world would need an additional 2 million barrels a day of supply over the next 18 months. That is the arithmetic behind his two-year timeline: it is not a forecast of when Hormuz reopens, but of how long the refill takes once it does.

Aramco says it could produce 12 million barrels a day if required. The company is developing additional export routes, overseas storage and ship-to-ship transfer capacity to reduce reliance on any single corridor. Nasser called for closer cooperation between producers and consumers on emergency planning.

The refined product market shows the more acute pressure. Nasser said refined product prices have risen more sharply than crude, a divergence that reflects refinery damage rather than crude supply. Chinese refiners have suspended fuel exports, removing a further source of supply for buyers outside China.

Analysis — What It Means for Energy Markets and Refiners

The second-order effects run through the refining complex rather than crude itself. If Middle East refining capacity is impaired and Chinese fuel exports are halted, the marginal barrel of crude has fewer places to be turned into diesel and gasoline. That keeps product cracks — the spread between crude and refined fuel — supported even as crude prices soften.

Refiners with intact capacity outside the affected regions are the structural beneficiaries of that split. Integrated majors with downstream exposure capture the product margin, while pure upstream producers are more exposed to a crude price that is not confirming Nasser's warning. The divergence between the two is the trade the market is currently expressing.

The counter-argument is straightforward: production is nearing prewar levels and Hormuz shipping has improved. If those two trends continue, crude supply normalises faster than inventories can be rebuilt, and the market may treat the thin-stock warning as a lagging indicator rather than a leading one. Traders are effectively betting on that view.

Positioning reflects that split. Futures curves that price a return to normal next year are the clearest expression of the consensus view. The tighter-for-longer case Nasser outlined challenges those curves directly, and any repricing would show up first in the back end of the curve rather than the front.

The acknowledged limitation is that Nasser is a producer with an interest in tighter markets. His estimates of lost supply and rebuild requirements are not independently verified in the report, and the two-year timeline is his own. That does not make the inventory figures wrong, but it does mean the market will look for confirmation in weekly stock data before repricing.

Outlook — What to Watch Next

Three catalysts will determine whether Nasser's warning gets validated or dismissed. First, Hormuz shipping volumes: if they continue improving, the supply-side normalisation story holds and crude stays soft. Second, weekly inventory builds: any sustained drawdown in commercial stocks would confirm the thin-buffer thesis. Third, Chinese fuel export policy: a resumption of exports would relieve product tightness and pressure cracks.

Aramco's own capacity is a fourth variable. The company says it can produce 12 million barrels a day if required, but the report does not disclose under what conditions that level would be triggered or how quickly it could be sustained. Watch for any guidance on export route development and ship-to-ship capacity, which would signal how seriously Aramco is treating corridor risk.

For crude, the level to watch is whether front-month futures hold above the prewar range or break lower on improving Hormuz flows. For products, the diesel and gasoline cracks are the cleaner expression of the refinery-damage thesis. Neither level is specified in the report, so positioning should follow the data as it prints rather than a pre-set target.

Frequently Asked Questions

What does 'scarily thin' oil inventories mean for retail investors?

Nasser's point is that the market's buffer against disruption is nearly gone. Less than 10% of world oil stocks are practically available, and more than 1 billion barrels have already been released. For retail investors, that means oil-linked assets carry more upside risk to any supply shock than the current soft crude price suggests, and less downside cushion than a normal inventory cycle would provide.

Why are refined product prices rising faster than crude oil?

Nasser attributed the gap to damage to refining infrastructure across the Middle East, which limits how much crude can be turned into fuel. Chinese refiners have also suspended fuel exports to protect domestic supplies, removing another source of product. The result is that crude supply can normalise while diesel and gasoline remain tight, keeping product cracks elevated even as crude softens.