Obegi Capital Research

When Everything Goes Wrong

Worst-Case Scenario Analysis: US-Israeli Strikes on Iran • March 2026
Oil Price
$150-200/bbl
S&P 500
-20 to -25%
Displaced
14.5M+
VIX Peak
55
Recovery
18-36 months

What This Report Is

This is a contingency analysis, not a prediction. It assumes escalation at every decision point to map the full extent of potential damage across geopolitical, economic, humanitarian, and market dimensions. The purpose is to stress-test assumptions and prepare for tail risk. Current cumulative probability of full worst case: ~5%.[1] [2]

Worst-Case Assumptions

Military

  • US-Israeli strikes continue for 4+ weeks targeting nuclear facilities, IRGC bases, air defenses, and command infrastructure[1]
  • Iran retaliates with ballistic missiles against Gulf oil infrastructure (Abqaiq, Ras Tanura, Jebel Ali)[5]
  • Strait of Hormuz fully closed by mines, fast boats, and anti-ship missiles for 6+ months[3]
  • Full proxy activation: Hezbollah rockets into Israel, PMF attacks in Iraq/Syria, Houthi Red Sea blockade[6]

Political & Diplomatic

  • Muscat diplomatic channel collapsed (Feb 6)[4]
  • No ceasefire for 12+ months. Every off-ramp rejected or sabotaged
  • Gulf states drawn into direct conflict after infrastructure attacks[2]
  • China-Russia provide covert support to Iran. US-China tensions spike to near-crisis levels[9]

Key Conclusions

  1. Oil at $150-200 sustained for months, not weeks. Hormuz handles 21% of global oil transit (~21M bbl/day). Full closure with Gulf infrastructure damage removes 25-30% of global supply. Strategic reserves buy time (90-180 days), not solutions.[3] [7] [12]
  2. Iraq is the hidden catastrophe. 98% of Iraqi government revenue comes from oil exports through the Gulf. Under worst case, the Iraqi state effectively goes bankrupt within 2-3 months, triggering sectarian fragmentation and potential state collapse.[46] [13]
  3. 15M+ displaced people become the largest refugee crisis since WWII. Iran (7M), Iraq (3M), Lebanon (1.5M), Yemen (1M), and Gulf expat workers (500K) create a humanitarian emergency that overwhelms every neighboring country.[15] [40] [41]
  4. Global recession is unavoidable at $150+ sustained oil. Every $10/bbl increase in oil reduces global GDP by ~0.2%. At $150-200, the GDP hit is 2-4% across developed economies and 4-8% in energy-importing emerging markets.[14] [21] [27]
  5. Nuclear proliferation cascade is the worst second-order effect. Whether strikes succeed or fail, every regional power recalculates. Saudi Arabia, Turkey, and Egypt all pursue nuclear programs within 5 years. The NPT is dead in the Middle East.[8] [35] [38]
  6. Markets recover in 18-36 months, but the world is permanently different. Historical precedent (1973, 1979, 1990, 2022) shows markets find a bottom within 3-22 months. But the geopolitical order, alliance structures, and energy architecture are permanently altered.[55] [61]

Sources

  1. RAND Corporation, 'Iran After the Bombs: How a Military Strike Could Backfire', 2024
  2. Brookings Institution, 'The Day After: Planning US Policy for a Post-Attack Iran', 2023
  3. CSIS, 'The Strait of Hormuz and the Threat of an Iranian Closure', 2024
  4. Carnegie Endowment, 'Escalation Dynamics in the Middle East', 2024
  5. Hudson Institute, 'Deterrence and Iranian Military Doctrine', 2023
  6. FDD, 'Iran's Proxy Network: Capabilities and Command Structure', 2024
  7. RAND, 'Consequences of a Catastrophic Hormuz Closure', 2023
  8. Stimson Center, 'Nuclear Proliferation Risks After Iran', 2024
  9. Chatham House, 'Energy Security and the Middle East: Worst Case Scenarios', 2024
  10. IEA, 'Oil Market Report: Hormuz Disruption Scenarios', March 2026
  11. IMF, 'Regional Economic Outlook: Middle East and Central Asia', October 2025
  12. World Bank, 'Global Economic Prospects: Oil Supply Shock Scenarios', January 2026
  13. UNHCR, 'Middle East Displacement Patterns and Projections', 2025
  14. Columbia CGEP, 'Oil Price Shocks and Global Macroeconomic Adjustment', 2024
  15. Hamilton, J., 'Historical Oil Shocks', Handbook of Major Events in Economic History, 2013
  16. Arms Control Association, 'Iran Nuclear Timeline and Breakout Estimates', 2026
  17. Nuclear Threat Initiative, 'Iran Country Profile', Updated February 2026
  18. UNHCR, 'Global Trends in Forced Displacement 2024', 2025
  19. Internal Displacement Monitoring Centre, 'Middle East Displacement Report 2025', 2025
  20. World Bank, 'Iraq Economic Monitor: Oil Revenue Dependency and Fragility', 2025
  21. Reinhart & Rogoff, 'This Time Is Different: Eight Centuries of Financial Folly', Princeton, 2009
  22. Yergin, D., 'The Prize: The Epic Quest for Oil, Money & Power', Free Press, 2008