Gulf crude output down 57% amid Iran war escalation
Severity: FLASH
Detected: 2026-04-24T15:05:40.317Z
Summary
Goldman Sachs reports Gulf crude production is down 14.5 mb/d (~57%) since the start of the Iran war, indicating a massive, ongoing disruption to global oil supply. Combined with confirmation of a second U.S. carrier joining the Iran blockade, this points to a structurally tighter crude market and elevated geopolitical risk premium.
Details
-
What happened: A Goldman Sachs note cited in report [14] states Gulf crude production has fallen by 14.5 million barrels per day, a 57% decline, since the onset of the Iran conflict. Separately, report [49] quotes U.S. War Secretary Hegseth indicating a second U.S. aircraft carrier will join the naval blockade against Iran. These developments occur against an already-flagged full U.S. enforcement of a Hormuz blockade and Iranian attacks on merchant shipping, but the quantified scale of supply loss and additional carrier deployment are new, material inputs.
-
Supply impact: A 14.5 mb/d loss represents roughly 14–15% of global oil supply and more than half of typical Gulf export volumes, far exceeding past single-region disruptions (e.g., Libya 2011 ~1.5 mb/d, Saudi Abqaiq 2019 ~5.7 mb/d briefly offline). Even if the figure reflects a mix of outright outages, shut-ins, and self-sanctioning, the implied physical shortfall and logistical constraints are severe. The second carrier strengthens the credibility and duration of the blockade, implying that both Iranian exports and third-party flows through the Gulf/Strait of Hormuz remain at high risk and that insurers, shipowners, and traders will continue to price in extreme transit risk.
-
Market impact: The immediate effect is a sharply higher risk premium across the crude complex, with front-end Brent and WTI likely to gap higher and backwardation to steepen as prompt barrels command scarcity value. Dubai/Oman and other Middle Eastern benchmarks should see outsized moves; differentials for non-Gulf sour grades (e.g., Urals, Mars, Latin American heavies) should strengthen as refiners scramble for replacements. Product cracks, especially for middle distillates, are likely to widen on fears of reduced refinery runs in import-dependent regions. LNG markets may also firm on expectations of knock-on disruptions to associated gas and regional shipping, although the direct figure here is oil-specific.
-
Historical precedent: The scale is larger and potentially longer-lasting than the 1979–80 Iran–Iraq war onset shock in percentage terms and rivals or exceeds the 1973 embargo in magnitude, implying multi-percentage daily moves are plausible. Unlike transient attacks (e.g., the 2019 Abqaiq strike) that markets could fade quickly, a formalized blockade with multiple carriers and already-embedded sanctions points to a structural regime shift.
-
Duration: Unless there is an unexpected diplomatic breakthrough or a rapid rollback of the blockade, the disruption is likely to persist for weeks to months at minimum. Strategic stockpile releases (SPR/IEA) could temporarily cap upside but would not fully offset a >10 mb/d structural loss. As a result, elevated crude prices and volatility are likely to be sustained rather than transient.
AFFECTED ASSETS: Brent Crude, WTI Crude, Dubai Crude, Gasoil futures, Heating Oil futures, Tanker equities (VLCC, product), Energy equities (integrated oil, E&Ps), USD-linked petrocurrencies (CAD, NOK, RUB, MXN), Gold
Sources
- OSINT