Goldman Raises Oil Forecasts as Iran Supply Shock Threatens Fed Rate Path

Goldman Sachs has revised its oil price forecasts sharply upward in response to what the International Energy Agency describes as the largest supply disruption in the history of the global oil market, with Brent crude trading at $112.11 per barrel as of March 22—a 49% surge since U.S.-Israeli strikes on Iran effectively closed the Strait of Hormuz on February 28.

The supply shock is cascading through inflation expectations and complicating the Federal Reserve’s Monetary Policy trajectory. Core PCE inflation climbed to 3.1% year-over-year in January 2026 data—significantly above the Fed’s 2% target—and Energy-driven price pressures now threaten to extend the timeline for rate cuts well into 2027.

Strait of Hormuz Closure Triggers Historic Disruption

The effective blockade of the Strait of Hormuz is disrupting approximately 20 million barrels per day of seaborne oil trade—roughly 20% of global supply—and 19% of global LNG flows, according to Goldman Sachs. Iran’s pre-conflict production totaled approximately 3.5 million barrels per day of crude plus 0.8 million bpd of condensate, representing 4% of global oil supply.

The damage extends beyond Iran’s borders. Iraq declared force majeure on all foreign-developed oilfields on March 22, slashing Basra Oil Company production from 3.3 million bpd to 900,000 bpd. Qatar’s Ras Laffan LNG facility lost 17% of export capacity to Iranian missile strikes, with QatarEnergy citing a potential five-year repair timeline.

Goldman Sachs estimates the current oil price risk premium at $14 per barrel, reflecting a full four-week Strait closure scenario. If disruptions persist beyond 60 days with sustained 2 million bpd production cuts across the Middle East, Brent could surge $42 per barrel by the end of 2027.

Revised Forecasts Assume Gradual Recovery

Goldman’s baseline scenario now projects Brent averaging $76 per barrel in Q2 2026 and $65 per barrel in Q4 2026, assuming gradual Strait of Hormuz recovery beginning in April. The forecast represents a significant upward revision from pre-conflict projections but incorporates several optimistic assumptions about supply restoration.

Global oil inventories stood at more than 8.2 billion barrels in early March—the highest level since February 2021—providing some cushion against the shock. The IEA coordinated a historic emergency release of approximately 400 million barrels from member country reserves, per World Economic Forum reporting.

Yet inventory drawdowns are accelerating. The IEA’s March Oil Market Report documented an 8 million bpd supply plunge during the month, with refining capacity shutdowns exceeding 3 million bpd globally. Demand destruction forecasts for 2026 have been revised upward as pump prices approach psychologically significant thresholds in major consuming markets.

Fed Trapped Between Inflation and Growth

The oil shock arrives at the worst possible moment for monetary policy. The Federal Reserve held its benchmark rate at 3.5-3.75% on March 18 and revised its 2026 inflation forecast upward to 2.7% for both headline and core PCE. The FOMC maintained its projection of only one 0.25 percentage point rate cut in 2026, but internal dot plot migration revealed 4-5 members shifted from expecting two cuts to one.

Chair Jerome Powell acknowledged the dilemma in his post-meeting press conference. “Near term measures of inflation expectations have risen in recent weeks, likely reflecting the substantial rise in oil prices caused by the supply disruptions in the Middle East,” he stated, per the official transcript.

Market pricing has shifted dramatically. CME FedWatch shows a 95% probability the Fed maintains its current rate range at the April 30 meeting and a 77% likelihood at the June meeting—up from 70% and 31% respectively one month prior, according to CBS News. Futures markets now price in at most one rate cut for the entire year.

Macro Spillover Effects Mounting

Goldman Sachs estimates the oil price shock will reduce global GDP growth by 0.3 percentage points and increase headline inflation by 0.5-0.6 percentage points over the next year under its baseline scenario. An upside scenario—prolonged disruption with sustained Middle East production cuts—shows a 0.4 percentage point GDP drag and 0.7 percentage point inflation boost, per the bank’s March 5 Global Economics Comment.

U.S. gasoline prices averaged $3.84 per gallon as of March 18—up 92 cents (31%) from $2.92 one month prior. The single-week increase represents the sharpest jump in more than two decades, creating immediate political pressure as the 2026 midterm election cycle intensifies.

The fundamental challenge for the Fed centers on distinguishing temporary energy shocks from persistent inflation. Core PCE—which excludes food and energy—was already running at 3.0% before the conflict, suggesting underlying price pressures remain elevated independent of oil. Energy-driven headline inflation risks unanchoring expectations if sustained, forcing the Fed to maintain restrictive policy even as growth slows.

What to Watch

Strait of Hormuz transit data will be the critical leading indicator. Any sustained reopening of shipping lanes would allow Goldman’s baseline scenario to materialise, potentially capping Brent in the $75-80 range by mid-year. Conversely, additional attacks on Gulf infrastructure or expansion of the conflict to Saudi facilities would validate the $154 Brent scenario that exceeds 2008 peaks.

The next core PCE reading, due in late April for February data, will determine whether underlying inflation was accelerating before the oil shock or whether the 3.1% January figure represented a temporary uptick. If core PCE prints above 3.0% again, the Fed’s credibility on the 2% target comes into question regardless of energy prices.

Inventory drawdown rates matter. The IEA’s coordinated release bought time, but sustained 8 million bpd supply deficits would exhaust strategic reserves within months. Goldman’s forecast assumes inventories stabilise by Q2—if drawdowns accelerate, the bank’s $65 Q4 target becomes untenable.

Finally, watch Treasury’s approach to Iranian oil sanctions. The administration has begun easing enforcement to encourage alternative supply routes, but political constraints limit how far this can extend. Any formal sanctions relief would require Congressional approval and face significant opposition, making unofficial tolerance the more likely path. That creates enforcement uncertainty that may deter some buyers despite economic incentives.