Research Digest | Barclays — Five signals that will determine the end of the war; oil prices could diverge towards $85 or $110

Exxonmobil Holdings Corporation
Chevron Corporation
Occidental Petroleum Corporation
SLB Limited
Spdr Select Fund-Energy Select Sector

Exxonmobil Holdings Corporation

XOM

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Chevron Corporation

CVX

0.00

Occidental Petroleum Corporation

OXY

0.00

SLB Limited

SLB

0.00

Spdr Select Fund-Energy Select Sector

XLE

0.00

1. The Core Market Question: Not “If,” but “When”

Since the outbreak of the Iran war on February 28, 2026, the global energy market has experienced its most severe geopolitical shock since the 1990 Gulf War:

  • Brent crude: +44% (in 25 days)
  • U.S. RBOB gasoline: +48%
  • U.S. diesel: +51%
  • European diesel: +58%

Barclays Capital’s core thesis is straightforward:

Oil pricing has shifted from supply-demand fundamentals to war-end timing.

The timing of the war’s end will determine whether oil returns to $85 or surges beyond $110.

In other words:

The market is no longer trading oil—it is trading the timeline of the war.


2. Three Key Timing Scenarios: A Clear Price Map

Barclays outlines a direct relationship between disruption duration and oil prices:

Strait of Hormuz ReopeningBrent Price Outlook
Early April~$85 (base case)
Late April~$98
Late May~$111

Core logic:

Each day of delay compounds inventory shortages, pushing prices higher in a nonlinear fashion.


3. The Five Key Signals That Could End the War

1️⃣ Military Objectives (Most Visible, but Lagging)

U.S. goals include:

  • Destroying Iran’s missile and drone capabilities
  • Securing the Strait of Hormuz
  • Crippling Iran’s military-industrial base

Current reality:

  • Iranian attacks have declined but not ceased
  • U.S. operations show no signs of scaling down

👉 Conclusion: The war is not yet in its endgame phase


2️⃣ Congressional Constraints (The Hard Deadline)

Key constraint: the War Powers Resolution

Report submitted: March 2

Hard deadline: May 31 (90 days)

Political reality:

  • Authorization (AUMF) requires 60 Senate votes
  • Republicans hold only 53 seats
  • Democrats have already signaled opposition

👉 This is the most certain upper bound for the war’s duration


3️⃣ U.S. Casualties & Public Opinion (Sentiment Turning Point)

Approval: 41% vs. 49% opposition

U.S. casualties: 13 deaths

Historical pattern:

Longer wars → more casualties → declining support

👉 Notably, Trump has not benefited from a typical “rally-around-the-flag” effect


4️⃣ Gasoline Prices (The Political Red Line)

Critical threshold: $5 per gallon

Equivalent to ~$120 WTI crude

Matches peak levels during Biden’s presidency

👉 This is less an economic threshold and more a political constraint


5️⃣ Trump’s Discretionary Pivot (The Wildcard)

Trump’s own words:

“When I feel like it.”

Market analogy:

The 2025 “Liberation Day” tariff reversal

However, Barclays cautions:

👉 Ending tariffs is far easier than ending a war


4. Key Takeaway: This Is Not a Speculative Rally

Barclays emphasizes that oil’s rise is fundamentally justified:

Pre-war valuation:

  • ~19% undervalued vs. inventory levels
  • ~15% undervalued vs. replacement cost

Net speculative positioning: near historic lows

👉 This is a structural repricing—not a bubble


5. Cross-Asset Dynamics: The Real Driver Is Bonds

While markets focus on:

  • Oil prices
  • War headlines

The deeper driver is:

👉 Bonds → Rates → Equities → Policy → War trajectory

Key range to watch:

U.S. 10Y Treasury yield: 4.50% – 4.70%

Once reached:

👉 Policy intervention becomes increasingly likely


6. Investment Strategy: What to Watch, What to Do

1. Trade Timing, Not Direction

The key is not:

Bullish vs. bearish oil

But:

When does the war end?

Monitor closely:

  • Strait of Hormuz status
  • Congressional developments (May 31 deadline)
  • Oil approaching $120
  • Treasury yields

2. Upside Risks in Oil Are Asymmetric

Positioning bias:

  • Lean long energy
  • Trade volatility

Key names:

Exxon Mobil Corporation(XOM.US)

Chevron Corporation(CVX.US)

Occidental Petroleum Corporation(OXY.US) 

SLB Limited(SLB.US) 

ETF:

Spdr Select Fund-Energy Select Sector(XLE.US)


3. Watch for Policy Pivot Trades

Trigger conditions:

  • Oil → $120
  • 10Y yield → 4.7%

Likely responses:

👉 SPR releases/policy shifts/de-escalation


4. AI Remains the Long-Term Structural Theme

Despite short-term volatility:

The AI trend is accelerating, not weakening

Key stocks:

NVIDIA Corporation(NVDA.US)

Microsoft Corporation(MSFT.US)

Advanced Micro Devices, Inc.(AMD.US)


7. A Simple Model for Investors

You can summarize the current market in one line:

Oil price = War timeline × Policy tolerance

The real edge lies in:

👉 Anticipating when the war becomes politically endable, not necessarily when it is militarily complete.