U.S.-Iran Conflict Could Trigger Long-Term Military Engagement, Spiking Oil and Defense Markets

A protracted U.S.-Iran conflict could extend over multiple years, according to strategic assessments, signaling a shift from short-term engagements to sustained military operations. This long-term outlook would intensify disruptions to oil flows through critical chokepoints such as the Strait of Hormuz, increasing the risk of supply shortages. The benchmark crude futures contract, CL=F, could surge past $120 per barrel in a full-scale escalation, reflecting market fears over energy security. Defense equities are expected to benefit directly from extended military commitments. The Energy Select Sector SPDR Fund (XLE), which tracks major oil and gas producers, may see increased volatility and elevated valuations as geopolitical risk premiums rise. Meanwhile, the CBOE Volatility Index (^VIX) could spike above 35, indicating sharper market swings and heightened investor anxiety. Historically, conflicts in the Middle East have driven oil price spikes—such as the 2011 Libya war, which pushed crude above $120 in real terms. A sustained U.S.-Iran confrontation would likely replicate and amplify such effects, especially with Iran’s capacity to disrupt shipping lanes and threaten regional infrastructure. Investors are already adjusting positioning. Defense contractors with exposure to long-range strike systems and aerospace platforms are seeing inflows, while energy firms with Middle East reserves face revaluation pressures. The combination of persistent supply constraints and elevated risk premiums could sustain higher energy prices and volatility for at least 18–24 months.