--- title: "US-Iran Conflict Drives Daily Inventory Draw of 3 Million Barrels; Citigroup Warns of Imminent 70-Day Crude Oil Inventory Red Line" type: "News" locale: "en" url: "https://longbridge.com/en/news/296603711.md" description: "The US-Iran conflict and Strait disruptions have led to record global inventory drawdowns, with OECD inventories approaching the 70-day coverage line seen during the second oil crisis, while a diesel crisis has already emerged. Despite soaring oil prices and refining margins, Citigroup predicts that the implementation of an agreement in the fourth quarter will drive Brent crude back to the $60 range by 2027" datetime: "2026-08-21T10:23:29.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/296603711.md) - [en](https://longbridge.com/en/news/296603711.md) - [zh-HK](https://longbridge.com/zh-HK/news/296603711.md) generator: "portal-rs" --- # US-Iran Conflict Drives Daily Inventory Draw of 3 Million Barrels; Citigroup Warns of Imminent 70-Day Crude Oil Inventory Red Line The global oil market is facing its most severe supply stress test in decades. In a client report on Thursday, **Citigroup pointed out that the US-Iran conflict and the disruption of the Strait of Hormuz have led to a cumulative drawdown of approximately 519 million barrels in global observable inventories between February and August 2026, with an average daily draw of 3 million barrels.** If this pace continues, OECD inventories could fall to the 70-day coverage line as early as the end of 2027—a critical level last touched during the second oil crisis in the 1970s and 1980s. Meanwhile, signs of localized crises have already appeared in refined products such as diesel, intensifying market concerns about the current situation. Dragged down by geopolitical tensions, Brent crude has risen above $93 per barrel, and WTI has climbed above $86, rebounding more than $13 and $11 respectively from their early August lows. The premium of US wholesale diesel prices over WTI has exceeded $100 per barrel, and weighted refining margins have surged about 350% year-to-date to $33. Nevertheless, Citigroup's baseline scenario still assumes that negotiations will reach an agreement and the Strait of Hormuz will reopen in the fourth quarter, expecting Brent crude prices to fall back to the $60 range in 2027. ## Record Inventory Drawdown Speed, 70-Day Coverage Line Approaching Citigroup data shows that from February to August 2026, the US-Iran conflict and the Strait of Hormuz disruption drove a cumulative drawdown of approximately 519 million barrels in global observable inventories, with an average daily drawdown scale of about 3 million barrels. **Extrapolating at this pace, Citigroup expects the inventory coverage days for OECD countries to drop to about 70 days by the end of 2027 at the earliest; global inventories excluding China will touch this level by mid-2028; and overall global inventories are expected to reach this critical point in the first quarter of 2029.** The 70-day coverage line holds significant historical reference value. Citigroup noted that this level is comparable to the inventory lows during the second oil crisis in the 1970s and 1980s. At that time, energy expenditures accounted for about 8% of GDP, which translates to a comprehensive landed price equivalent to over $200 per barrel, whereas the current price is around $120. ## Refined Product Crisis May Erupt Earlier Than Overall Expectations Citigroup warned that macro-level overall inventory trends may mask more urgent localized pressures. **"Specific refined products—especially diesel—are currently facing difficulties and may worsen further, meaning that localized, product-specific crises will appear earlier than the overall forecast timeline," Citigroup wrote in the report.** This warning is already reflected in price signals. The premium of US wholesale diesel prices over WTI has exceeded $100 per barrel, and weighted refining margins have cumulatively risen about 350% year-to-date to $33 per barrel, far above normal levels, indicating that tightness on the refining side is quite prominent. ## Oil Prices Rebound, but Citigroup Still Bets on Agreement Implementation Crude oil prices have rebounded significantly from their phase lows in early August. Brent crude has risen above $93, and WTI has broken through $86, rising substantially from their respective lows of $80 and $75, as market expectations for a short-term agreement cool down. Nevertheless, Citigroup maintains its baseline scenario judgment: the US and Iran will reach an agreement in the fourth quarter of this year, the Strait of Hormuz will subsequently reopen, and Brent crude prices are expected to fall back to the $60 range in 2027. This judgment implies that, in Citigroup's view, the current high oil prices and inventory drawdown pressure are phased characteristics. Whether the agreement can be implemented as scheduled will be the key variable determining the subsequent market direction. ### Related Stocks - [C.US](https://longbridge.com/en/quote/C.US.md) - [UCO.US](https://longbridge.com/en/quote/UCO.US.md) - [USO.US](https://longbridge.com/en/quote/USO.US.md) - [BNO.US](https://longbridge.com/en/quote/BNO.US.md) - [SCO.US](https://longbridge.com/en/quote/SCO.US.md) - [03097.HK](https://longbridge.com/en/quote/03097.HK.md) - [03175.HK](https://longbridge.com/en/quote/03175.HK.md) - [IEO.US](https://longbridge.com/en/quote/IEO.US.md) - [XOP.US](https://longbridge.com/en/quote/XOP.US.md) - [CRAK.US](https://longbridge.com/en/quote/CRAK.US.md) - [OIH.US](https://longbridge.com/en/quote/OIH.US.md) - [PXJ.US](https://longbridge.com/en/quote/PXJ.US.md) - [IXC.US](https://longbridge.com/en/quote/IXC.US.md) - [XLE.US](https://longbridge.com/en/quote/XLE.US.md) - [GUSH.US](https://longbridge.com/en/quote/GUSH.US.md) - [DRIP.US](https://longbridge.com/en/quote/DRIP.US.md) - [ERX.US](https://longbridge.com/en/quote/ERX.US.md) - [ERY.US](https://longbridge.com/en/quote/ERY.US.md) - [VDE.US](https://longbridge.com/en/quote/VDE.US.md) - [IEZ.US](https://longbridge.com/en/quote/IEZ.US.md) - [XES.US](https://longbridge.com/en/quote/XES.US.md) - [DUG.US](https://longbridge.com/en/quote/DUG.US.md) - [MLPA.US](https://longbridge.com/en/quote/MLPA.US.md) - [C-R.US](https://longbridge.com/en/quote/C-R.US.md) ## Related News & Research - [Oil edges up on uncertainty over exports through Hormuz](https://longbridge.com/en/news/296282399.md) - [Oil extends climb on prolonged Hormuz export uncertainty](https://longbridge.com/en/news/296302371.md) - [Citi Appointed as Depositary Bank for Agilyx ASA's ADR Program | C Stock News](https://longbridge.com/en/news/296578896.md) - [Citigroup Sees Unusual Options Activity and $223 Million Block Trade After Hours](https://longbridge.com/en/news/296785307.md) - [Russia to receive almost 270,000 tons of refined fuel from Asia in August, data shows](https://longbridge.com/en/news/296325735.md) --- > **Disclaimer: This article is for reference only and does not constitute any investment advice.**