Global oil-market disruptions, supply adaptation and Brent/WTI price outlook Report Interpretation

Overview

This global oil-market outlook updates Goldman Sachs' price forecasts for a prolonged Middle East conflict and shipping disruption scenario. The report argues that the disruption outlook warrants higher Brent and WTI forecasts, but market adaptation, resilient commercially available OECD inventories and price-sensitive Chinese imports limit the base-case increase.

Core views

Goldman Sachs raises its Brent/WTI forecasts by $5 to $85/$80 per barrel for December 2026 and to $80/$75 for 2027, reflecting a new base-case assumption that Middle East shipping disruptions continue into 2027. The market is increasingly pricing a prolonged conflict: Brent spot futures were $97, the options-implied probability of Brent exceeding $100 in March 2027 increased from around 6% one month earlier to about 25%, and 2027Q2 Persian Gulf-to-China tanker rates also price disruption lasting into that period. The upgrade is deliberately modest because the report finds that the most price-relevant inventory category—OECD commercial land stocks—has barely drawn since the war began. Goldman Sachs' end-August OECD commercial-stocks counter was 119 mb above its July balance estimate. Although visible global oil stocks have fallen by 543 mb since the war began, or 504 mb after adjustment for likely upward revisions to dark flows, only 26 mb of that draw came from OECD commercial storage. Nearly 200 mb each was concentrated in OECD strategic petroleum reserves and oil on water, with 80 mb in China. The report estimates that the global deficit narrowed from about 7 mb/d in March 2026 to 1 mb/d in 2026Q3 as Gulf output partly recovered, demand remained soft and ex-Gulf output grew. The balance adjustment is quantified against the 6.4 mb/d decline in Persian Gulf output versus its 2025 average in 2026Q3. Goldman Sachs attributes the smaller 1 mb/d deficit to a 1.2 mb/d 2025 surplus, 2.7 mb/d weaker demand and 1.4 mb/d stronger ex-Gulf production. Americas liquids output is projected to be 2.3 mb/d above its 2025 average in 2026Q3, led by the US at 1.0 mb/d and Brazil at 0.7 mb/d. With its OECD commercial inventory measure remaining resilient, the institution puts Brent fair value at $79/bbl, $18 below market pricing, which it interprets as embedding a risk premium for future inventory draws and high disruption risk. The supply outlook assumes continued Middle East adaptation. Gulf liquids output had improved from 14.3 mb/d below February 2026 levels in April to 8.0 mb/d below in July. Goldman Sachs expects output to return gradually to pre-war levels by 2027H2, then overshoot as the UAE and Saudi Arabia use some spare capacity to rebuild inventories. The reasoning is that producers and specialized shippers have already adapted through rising dark flows, while additional pipeline capacity, tanker fleet expansion and potentially more ship protection can support exports. The report estimates 3.8 mb/d of effective new pipeline capacity by end-2027, consisting of 1.8 mb/d from the UAE West-East pipeline expansion and 2.0 mb/d from Saudi Arabia's Yanbu port expansion. However, it identifies the intensity and geographic breadth of tanker attacks as the critical uncertainty governing the pace of export recovery. Low visible global stocks and OECD strategic reserves do not, in Goldman Sachs' view, automatically require an imminent crude-price spike. Historically, Brent was only $76 when visible global stocks reached their all-time low in November 2024 in the report's post-2017 sample. OECD commercial stocks measured in days of demand, which the institution regards as a better oil-price predictor, remain 16% above their 2003 average all-time low. Global landed oil stocks are estimated to have declined from 9.06 billion barrels before the war to 8.69 billion barrels, still substantially above Goldman Sachs' estimated minimum operational storage level of 4.20 billion barrels. China is presented as an additional stabilizer. Chinese crude net imports remain about 30% below the prior year, and Goldman Sachs estimates that Brent fair value would have been $10-$15 higher had China maintained stable imports from March through August 2026, because OECD commercial stocks would have drawn more sharply. The report expects imports to stay low if prices remain elevated: July 2026 net imports were 3.3 mb/d below the 2025 average, reflecting a 2.0 mb/d decline in refinery runs and a 1.3 mb/d shift from 2025 stockbuilding to draws since May. Greater flexibility from electrified transport, public transportation and coal-based petrochemicals, alongside visible Chinese crude stocks above 1.1 billion barrels, is expected to preserve price sensitivity. Despite these moderating factors, Goldman Sachs judges price risks to be significantly skewed upward on net, especially near term. More intense or broader shipping disruption and damage to production or export infrastructure could extend output losses, with elevated risk around Hormuz, the Red Sea and the Black Sea. In its upside scenario, Brent could exceed $120/bbl if 2027 average Gulf output remains 4 mb/d below pre-war levels, compared with 0.5 mb/d below in the base case; intensified attacks in Hormuz and the Red Sea are identified as the most likely trigger. The main downside risks are a faster Middle East output recovery and more persistent demand losses. Brent could fall into the $60s in 2027 if average Gulf output rises 1 mb/d above pre-war levels. Goldman Sachs also continues to recommend deferred Mar27-Dec27 European diesel timespreads as a geopolitical hedge, estimating that the spread would rise by more than 100% if persistent Russian or Middle East refinery outages keep the nearby nine-month spread near current levels.

Analysis framework

The report updates an oil supply-demand balance for a prolonged-disruption scenario, then links balances to inventories, especially OECD commercial stocks measured in days of demand. It tests the forecast against historical inventory-price relationships, estimates Gulf export recovery through shipping adaptation and pipeline additions, incorporates China’s price-sensitive import response, and presents output-based upside and downside Brent scenarios.

Methodology notes

• Industry AnalysisSupply-demand framework

  Global oil supply-demand balance combined with inventory analysis

  Goldman Sachs estimates changes in Gulf supply, ex-Gulf supply and demand to derive the market deficit and expected stock draws. It emphasizes OECD commercial inventories as the inventory measure most relevant to near-term Brent pricing.

• Event-Driven and Behavioral FinanceEvent-driven analysis

  Disruption and Gulf-output scenario analysis

  The report compares its base case with scenarios of deeper or faster Gulf output changes to illustrate how shipping attacks, infrastructure damage and recovery paths could affect Brent prices.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Brent crude oil

  Primary commodity benchmark in the forecast and disruption scenarios

  Strengths

  Prices carry a disruption risk premium and could exceed $120/bbl if Gulf output remains materially below pre-war levels.

  Weaknesses

  Resilient OECD commercial stocks, expected supply adaptation and price-sensitive Chinese imports limit the base-case price increase.

  Comparison

  Goldman Sachs estimates a $79/bbl Brent fair value, $18 below market pricing.

  Risks

  Faster Middle East supply recovery or stickier demand losses could take Brent into the $60s in 2027.

• WTI crude oil

  Co-forecast benchmark

  Strengths

  Goldman Sachs raises its forecast alongside Brent to $80/bbl for December 2026 and $75/bbl for 2027.

  Weaknesses

  The forecast is exposed to the same global supply recovery and demand-loss risks as Brent.

  Comparison

  WTI remains forecast below Brent in the institution's revised outlook.

  Risks

  A faster-than-assumed Gulf supply recovery could weaken the global oil-price outlook.

• Mar27-Dec27 European diesel timespreads

  Recommended geopolitical-risk hedge

  Strengths

  Goldman Sachs estimates the spread could rise by more than 100% if persistent Russian or Middle East refinery outages keep the nearby nine-month spread near current levels.

  Weaknesses

  The hedge's payoff depends on refinery outages and the persistence of tight nearby diesel spreads.

  Risks

  Reduced refinery disruption or a decline in the nearby nine-month spread would weaken the scenario supporting the trade.

Key data

• Dec. 2026 Brent/WTI forecast$85/$80 per barrelRaised by $5 from the prior Goldman Sachs forecast.
• 2027 Brent/WTI forecast$80/$75 per barrelRaised by $5 as Middle East shipping disruptions are assumed to continue into 2027.
• Global oil market deficitAbout 7 mb/d in March 2026; 1 mb/d in 2026Q3Narrowed as Gulf output partially recovered, demand stayed weak and ex-Gulf supply increased.
• OECD commercial-stock draw26 mb of a 543 mb visible global-stock drawGoldman Sachs identifies OECD commercial stocks as the most price-relevant stock category for near-term Brent.
• Gulf liquids output shortfall8.0 mb/d below February 2026 levels in July, versus 14.3 mb/d below in AprilSupports the report's assumption of gradual supply adaptation.
• New effective pipeline capacity by end-20273.8 mb/dIncludes 1.8 mb/d from the UAE West-East expansion and 2.0 mb/d from Saudi Arabia's Yanbu expansion.
• Chinese crude net importsAbout 30% year-over-year lowerThe report sees price-sensitive imports as a moderating force on oil-price upside.

Impact & implications

The report's higher forecast reflects a longer assumed disruption period, but its base case does not assume a lasting extreme shortage because commercial inventories remain comparatively resilient and Gulf supply is expected to adapt. The principal market sensitivity is the scale and duration of Gulf output impairment: deeper disruption creates substantial upside risk to Brent, while a faster recovery and persistent demand weakness create downside risk.

Risks

• More intense and geographically broader shipping disruptions could prolong Middle East or other supply losses.
• Damage to crude production or export infrastructure could weaken output for longer than assumed.
• The report identifies particularly high disruption risk around Hormuz, the Red Sea and the Black Sea.
• A faster Middle East output recovery and more persistent demand losses are the main downside risks to the price forecast.

What to watch

• The intensity and geographic breadth of tanker attacks and their effect on Gulf export recovery.
• Persian Gulf output relative to pre-war levels and the pace of dark-flow, pipeline and spare-capacity adaptation.
• OECD commercial inventory draws, rather than aggregate visible global oil stocks alone.
• Chinese refinery runs, crude imports and inventory behavior at elevated prices.
• Russian and Middle East refinery outages and the nearby European diesel timespread.