The buffer in the global oil market is vanishing. After seven months of wartime depletion, the head of the world's largest independent oil trader declared that Western inventories have no oil left to draw upon. After rebuilding its pricing model, Goldman Sachs found that the risk premium embedded in September oil prices reached as high as $22 per barrel, the second-highest level on record.

Vitol CEO Russell Hardy said this week at the Energy Intelligence Forum in London that "the West has no more inventory to draw upon," and warned that if shipping through the Strait of Hormuz is disrupted, oil prices could surge to $200 per barrel. Meanwhile, Goldman Sachs' commodities team acknowledged in its latest report that its long-used Brent crude pricing model has "failed" this year, because the previous model only tracked OECD commercial inventories, while nearly 60% of this round of inventory drawdown occurred in non-OECD countries.

After rebuilding the model to incorporate global non-OECD inventory data, Goldman Sachs found that the risk premium in September oil prices reached $22 per barrel, second only to the all-time peak set in April this year, and far exceeding the peak of no more than $16 per barrel during the 2022 Russia-Ukraine conflict. This figure means the market is paying a near-record "fear premium" for a supply system with virtually no buffer.

Industry Executives Sound the Alarm in Unison: Inventory Buffer Nearing Its Limit

This week, the most influential executives in the global oil industry collectively issued warnings in London, with unprecedented severity in their language.

Russell Hardy stated that to maintain supply-demand balance through the winter, approximately 10 million to 14 million barrels per day of crude oil need to be shipped through the Strait of Hormuz route. Currently, after the U.S. Navy opened routes for shuttle tankers through Hormuz, about 12 million barrels per day of crude and 2 million barrels per day of refined products are able to pass through, barely keeping the market balanced—but only on the condition that no new surprises emerge.

Hardy summarized this crisis in three phases: "We started with a crude oil crisis, then it evolved into a refined products crisis, and now Middle East crude supply has somewhat recovered, but it has turned into a shipping crisis." According to reports, tanker charter rates have risen in a "near-parabolic" fashion, North Sea cargoes traded at $145 per barrel last week, and European refining margins have turned negative.

Shell CEO Wael Sawan said, "There is a limit to how much shock these shock absorbers can take... You cannot keep going like this indefinitely without further fractures appearing." Saudi Aramco President Amin Nasser warned, "Emergency reserves may get through one winter, but they cannot solve long-term supply problems."

66 Billion Barrels Gone: The True Scale of Inventory Depletion

Energy analyst John Kemp stated bluntly in his latest report, "Global crude and refined product inventories have fallen to levels where the system has almost no capacity to withstand further shocks."

According to the U.S. Energy Information Administration (EIA) October Short-Term Energy Outlook data, since March this year, global inventories have been depleted by approximately 660 million barrels cumulatively, with nearly 60% coming from non-OECD country storage tanks. This figure corroborates Goldman Sachs' own tracking of visible inventory data—Goldman Sachs data shows that as of August, cumulative depletion since March 1 had reached 509 million barrels.

The situation with the U.S. Strategic Petroleum Reserve (SPR) is equally severe. According to the latest EIA data, the SPR decreased by another 784,000 barrels this week to 283 million barrels, leaving only 13 million barrels above the all-time low since the reserve was established in 1982.

Against this backdrop, multiple countries announced last week that they would release an additional 100 million barrels of emergency reserves, on top of the previously announced 400 million barrels. However, according to JPMorgan Chief Oil Strategist Natasha Kaneva's interpretation, "The 100 million barrels in this announcement does not represent 100 million barrels of new intervention... This means a large portion of Friday's announcement is a continuation of the previous IEA release plan, rather than newly injected barrels." In other words, the so-called "new reinforcements" are merely the same reinforcements being asked to run faster.

Goldman Sachs Model "Fails": The Overlooked Non-OECD Inventories

Goldman Sachs candidly admitted in its report that its Brent crude pricing model, relied upon for decades, has shown fundamental deviations this year.

In historical samples since 1998, OECD commercial inventories could explain "more than 60% of the variation" in the Brent crude 1-month/36-month time spread. However, this relationship collapsed entirely this year: "Since the start of this year, the time spread has risen by $30 per barrel, while OECD commercial inventories have barely changed."

The reason is that this round of inventory depletion has mainly occurred outside the OECD's field of view. Persian Gulf exports (including "dark fleet" barrels) have recovered to 2025 average levels or above, "but Brent spot prices remain in the triple digits," because global visible inventories are near their lowest levels since 2017.

Goldman Sachs then expanded its model to include "global onshore oil inventories outside of OECD commercial storage." The new model's fit to the time spread improved significantly, but still left a large gap—this gap is precisely the source of the risk premium.

Goldman Sachs also noted that the marginal pricing weight of OECD barrels and non-OECD barrels is not the same: "For every 100 million barrel decline in OECD commercial inventories (approximately 3.5% decrease), Brent fair value rises by about $8 per barrel; while an equivalent decline in other visible global onshore inventories only pushes prices up by about $2 per barrel." The reason is that the physical delivery points for both Brent and WTI benchmark contracts are located in OECD countries, and the market prices the barrels it can see and where they are located.

$22 Per Barrel Risk Premium: Second-Highest in History

After incorporating non-OECD inventories, the remaining "unexplained portion" in Goldman Sachs' model is the risk premium.

Goldman Sachs' report shows, "The updated model indicates that the average risk premium in September was $22 per barrel—the second-highest monthly reading on record, second only to April 2026. If only OECD commercial inventories were used, the risk premium estimate would be as high as $29 per barrel, but this method cannot capture the physical market tightness outside the OECD."

For reference, the peak monthly risk premium after the 2022 Russia-Ukraine conflict "did not exceed $16 per barrel." Goldman Sachs noted that this highlights "the unprecedented scale of this year's oil supply shock."

Goldman Sachs attributes the current high risk premium to three major drivers: First, fear of supply disruption—the premium is highly correlated with Brent call option skew and geopolitical risk indices (correlation coefficient 0.5); second, speculative long positioning—"paper barrels" have continued to push prices higher this year (correlation coefficient 0.6); third, macro portfolio hedging demand—oil supply shocks push up inflation and Treasury yields, making crude oil a hedging tool for stock and bond portfolios. This week, the 10-year U.S. Treasury yield has risen above 5.3%, the correlation between Brent and 10-year Treasuries is near a 25-year high, while the correlation between oil prices and the stock market has declined sharply.

Multiple Shocks Pile Up, Buffer Reaches Zero

Over the past week, the market has encountered virtually every type of supply shock without any buffer.

In the Hormuz direction, a tanker was attacked near Qatari waters; Iran's Islamic Revolutionary Guard Corps (IRGC) attacked an LPG tanker and warned it would punish vessels "committing violations outside the Strait of Hormuz"; Saudi media reported that Houthi forces had laid mines in the Bab el-Mandeb Strait; and the UAE announced it had rescued 22 crew members from a burning tanker in the Persian Gulf.

In the Gulf of Mexico direction, Hurricane Isaias forced the shutdown of 63% of U.S. Gulf of Mexico oil production, made landfall in Florida, and major refineries narrowly escaped impact.

In the Russia direction, Trump announced that Putin had agreed to release some diesel to global markets, but hours later, Ukrainian drones reportedly struck a major Russian fuel export hub.

In the Washington direction, Trump stated he would not take military action against Iran before the midterm elections, which briefly pushed oil prices lower; but Tehran immediately continued attacking tankers, and the prospect of a so-called "clear diplomatic resolution" remains remote.

As Jefferies summarized: "Any small disruption now will produce outsized price consequences."

Goldman Sachs Baseline Forecast and Upside Risks

Goldman Sachs maintained its baseline scenario in the report, namely that the risk premium will "gradually return to the historical mean of zero," and noted that Middle East supply continues to exceed expectations under "continuous adaptation." However, the report also explicitly warned that if geopolitical tensions persist, the premium "may remain elevated before a clear diplomatic resolution emerges," and noted that "if geopolitics keeps the risk premium elevated for an extended period, our price forecast carries upside risk."

Goldman Sachs already raised its Brent crude forecast last month, suggesting Brent could reach as high as $120 per barrel if the Hormuz disruption continues into 2027. And Vitol's Russell Hardy presented an even more direct extreme scenario: if shuttle shipping through Hormuz is halted again, $200 per barrel is not a tail risk but a realistic option.