The Iran War and the Long-Term Cost of Energy Insecurity

Key Takeaways

1. Energy is the first economic pressure point.
   The Iran war has pushed oil and gas prices higher, with potential ripple effects across transportation, inflation, corporate costs, and consumer spending.
2. The Strait of Hormuz remains a critical risk.
   Any disruption to this major global energy chokepoint can quickly affect oil, LNG, shipping, insurance costs, and market sentiment.
3. Energy security is becoming a long-term investment theme.
   Countries may accelerate efforts to secure fossil fuel supplies, expand domestic energy production, invest in renewables and nuclear power, and improve energy efficiency.
4. Investors should avoid reacting to headlines alone.
   Markets often recover before uncertainty is fully resolved, so portfolio decisions should be guided by long-term goals rather than short-term geopolitical news.
5. Portfolio construction may need a fresh look.
   A more fragmented, inflation-prone world could challenge traditional assumptions about stocks, bonds, real assets, energy exposure, and diversification.

The war in Iran is more than a geopolitical headline: beyond its significant human toll, it carries far-reaching implications for the global economy. For high-net-worth individuals and families, it highlights how closely energy security, inflation risk, and portfolio resilience are now linked.

The immediate market reaction has been centered on oil and gas prices. That is not surprising as energy is often the first channel through which military conflict reaches the global economy. Higher fuel costs can affect transportation, shipping, consumer prices, corporate margins, inflation expectations, and ultimately interest-rate policy.

But the more important question for investors may not be whether oil prices rise or fall over the next several weeks. It is whether the conflict accelerates a broader shift already underway: a world in which energy security, supply-chain resilience, and domestic productive capacity become larger drivers of economic policy and investment returns.

The war in Iran is part of a larger pattern of geopolitical developments that have been pushing the global economy toward de-globalization, less efficient supply chains, and a potentially more inflation-prone environment. For investors, that may require a fresh look at portfolio construction. Traditional assumptions about how stocks, bonds, commodities, real assets, and alternative investments behave relative to one another may not hold as reliably in the future as they did in prior market cycles.

Why Energy Has Been the First Pressure Point

Oil and natural gas have been the clearest market signals during the Iran war because they are tied directly to physical infrastructure, shipping lanes, and near-term supply availability. Unlike many financial assets, energy cannot always be rerouted quickly when key facilities or transit routes are threatened.

The Strait of Hormuz is central to this concern. It remains one of the world’s most important energy chokepoints, with the U.S. Energy Information Administration and International Energy Agency both identifying it as a critical route for global oil and liquified natural gas (LNG) flows. The IEA has reported that nearly 15 million barrels per day of crude oil moved through the strait in 2025, representing almost 34% of global crude oil trade, with China and India receiving a large share of those flows.

Former market moves have reflected that sensitivity. That is why this conflict should not be viewed only as a short-term commodity event. It is also a stress test for global energy infrastructure. Even if the current phase of conflict eases, investors may continue to place a higher value on countries, companies, and technologies that can improve supply reliability.

Exhibit A: Primary Energy Usage per Unit of GDP

Source: World Bank Group, Fiduciary Trust Company. Measures the energy intensity level of primary energy based on megajoules per GDP (measured based on purchasing power parity). Latest available data is of year-end 2021.

The Short-Term Impact: Prices, Inflation, and Investor Behavior

In the short term, the impact of higher oil and gas prices can ripple quickly through the economy. Gasoline prices affect consumers directly. Diesel and jet fuel affect transportation and logistics. Natural gas prices can influence electricity costs and industrial production. Together, these pressures can contribute to inflation at a time when many investors and central banks remain sensitive to price stability.

For investors, the instinct in an environment like this may be to reduce risk and wait for an “all-clear” signal. That impulse is understandable, but it can be costly. Markets often begin to recover before the news feels fully resolved. A ceasefire, reopening of a shipping route, or credible sign of de-escalation can lead to sharp price moves before investors have complete clarity.

That does not mean investors should ignore risk. It means that decisions should be made in the context of a long-term plan, not a short-term headline cycle. During periods of geopolitical stress, the most important question is often not, “what just happened?” but “has this changed the assumptions behind the plan?”

Exhibit B: Fossil Fuel Energy Imports (% of total energy supply)

The Longer-Term Issue: Energy Security Becomes Strategic

The longer-term issue is how countries and the energy industry react to the war. Countries that depend heavily on imported fossil fuels are likely to continue looking for ways to reduce vulnerability. That may include securing long-term oil and LNG supply agreements, increasing domestic production where possible, investing in renewables and nuclear power, expanding storage capacity, strengthening electric grids, and improving energy efficiency.

This does not mean that fossil fuels are becoming irrelevant. In fact, the opposite may be true. Oil and natural gas may remain strategically important for longer than many forecasts assumed, particularly during periods when energy security becomes a national priority.

At the same time, renewables, storage, nuclear, grid modernization, and efficiency may benefit indirectly. Domestic generation can reduce reliance on imported fuels. Energy efficiency can lower the amount of fuel required to produce each unit of economic output. Over time, that can make economies less vulnerable to external shocks.

For investors, this suggests that energy exposure may need to be considered more broadly. The opportunity set is not limited to oil producers. It may include infrastructure, LNG, pipelines, utilities, grid technology, nuclear power, industrial efficiency, and companies positioned to help countries manage energy risk.

Could Energy Still Be Attractive?

The energy sector may benefit from higher prices, disciplined supply, and attractive valuations, but investors should distinguish between opportunity and concentration risk.

The Wall Street Journal recently noted that energy stocks remained relatively inexpensive despite the conflict, with the sector trading at a meaningful discount to the broader market and companies maintaining more disciplined capital spending plans. ¹

That capital discipline matters. In past cycles, higher oil prices often encouraged producers to drill aggressively, eventually creating new supply and pressuring prices. Today, many energy companies appear more focused on free cash flow, balance-sheet strength, dividends, and shareholder returns.

Still, energy should not be viewed as a simple hedge or one-way trade. Oil prices can fall quickly if the conflict de-escalates. Energy equities can also behave differently from the commodity itself. For clients with limited energy exposure, current conditions may warrant a portfolio review, but any decision should be evaluated in light of existing holdings, taxes, income needs, liquidity, risk tolerance, and long-term objectives.

Portfolio Implications: Preparing for a More Inflation-Prone World

The Iran war is not the only force reshaping the investment landscape. AI, productivity growth, demographics, monetary policy, fiscal deficits, and defense spending will all influence the long-term outlook. But the conflict highlights a practical concern: the global economy may be moving into a period where energy security and national resilience matter more than pure efficiency.

That could have implications for inflation and asset allocation. A world of more fragmented trade, higher defense spending, reshored supply chains, and strategic resource competition may be less efficient and more inflation-prone than the world that investors became accustomed to over the past several decades.

Exhibit C: US Inflation Rate, 1960 – 2026

In that environment, investors should be prepared for periods when stocks and bonds do not provide the same offsetting behavior they have in the past. In the years ahead, real assets, energy exposure, inflation-sensitive investments, global diversification, high-quality fixed income, and alternative strategies may all play different roles depending on each family’s goals and risk profile.

Navigating a Changing World

The Iran war may prove short-lived, or it may become part of a longer period of geopolitical instability. At this stage, the outcome remains uncertain.

What is clearer is that the conflict has highlighted forces likely to shape the global economy for years to come: energy security, supply-chain resilience, inflation risk, defense spending, government debt, and the changing structure of global trade.

Periods of geopolitical stress can make even well-designed plans feel less certain. That is precisely when discipline matters most. Investors cannot control the geopolitical forces shaping the world, but they can prepare for multiple outcomes.

At Fiduciary, we help clients evaluate uncertainty through a disciplined planning and investment framework. That includes reviewing liquidity needs, stress-testing assumptions, assessing portfolio exposures, and making thoughtful adjustments when warranted by global and market conditions.

Fiduciary continues to monitor developments in the Iran war, global energy markets, fiscal policy, and the broader investment landscape. If you would like to discuss how different scenarios may affect your wealth plan, please reach out to your Fiduciary Trust officer or Sid Queler at queler@fiduciary-trust.com.