Morgan Stanley Oil Buffers Could Run Out Before Hormuz Reopens

Morgan Stanley warned that if the Strait of Hormuz remains closed into late June or July, Brent could spike toward $150 per barrel as China and U.S. supply buffers are exhausted. The bank left its Dated Brent forecasts unchanged at $110/bbl for the current quarter, $100/bbl for Q3, and $90/bbl for Q4 2026, but said the market is in a race against time. The geopolitical risk remains elevated after President Trump rejected Iran’s response to a U.S.-drafted peace proposal, while Goldman Sachs separately flagged global oil inventories near an eight-year low.

Analysis

The market is currently pricing the shock as a bridging problem, not a true shortage: spare US exports and China’s weaker intake are acting like a temporary release valve. The dangerous part is that those buffers are time-decaying, so the same headline can matter much more in late June than it does today; this creates a convexity window where vol, not just spot, should reprice first. In other words, the embedded assumption is that diplomacy resolves the issue before inventory math becomes binding.

Second-order beneficiaries are the parts of the energy complex with the cleanest optionality to higher crude: upstream cash flows, tanker re-routing, and refined-product crack spreads outside the immediate disruption zone. Losers are downstream users with weak pass-through power — airlines, chemicals, industrials — but the sharper trade is in relative margin compression for global refiners if feedstock becomes fragmented and freight costs rise simultaneously. That combo tends to hit non-US importers harder than headline Brent suggests.

The contrarian risk is that the market may be underestimating how quickly policy responses can cap the spike once prices move from “inflationary” to “politically destabilizing.” If crude approaches the upper end of the bank’s stress case, expect a faster-than-normal response from strategic stock releases, diplomatic pressure, and demand destruction in Asia and Europe within weeks, not quarters. So the highest-upside expression is not outright long oil, but long volatility and long energy equities versus vulnerable consumers.

The biggest tell will be whether physical differentials and prompt spreads tighten faster than flat-price futures. If they do, that confirms the market is moving from narrative risk to actual barrel scarcity, which is where upside can overshoot models for 2-4 weeks before policy reverses it.

Key Decisions for Investors

• Buy Brent call spreads on the front-month / 2-month strip for late June expiry; structure for convexity into the buffer-exhaustion window, targeting 2-3x payoff if reopening slips past month-end.
• Go long XLE versus short XLI for 4-8 weeks; energy should outperform cyclicals if crude remains elevated, with a cleaner margin impulse than the broader market and limited earnings revisions already priced in.
• Long tanker exposure via FRO or TNK on a 1-2 month horizon; rerouting and longer haul distances should lift ton-miles even if absolute seaborne volumes soften.
• Short consumer-discretionary or airline exposure via JETS puts / short UAL or AAL against a Brent hedge; risk/reward improves if oil stays above the market’s comfort zone for more than 2 weeks.
• Take tactical profits on outright oil longs into any 10-15% spike unless physical spreads confirm shortage; policy response risk rises nonlinearly once headline Brent becomes inflation-sensitive.