A complete cessation of oil exports from the Gulf region amounts to removing close to 20 percent of global oil supplies from the market, about 80 percent of which is shipped to Asia. Oil importers unable to access oil from the Persian Gulf have to turn to other oil suppliers, putting upward pressure on oil prices worldwide. The model implies that a closure of the Strait of Hormuz that removes close to 20 percent of global oil supplies during second quarter 2026 is expected to raise the average WTI price to $98 per barrel and lower global real GDP growth by an annualized 2.9 percentage points.

The paper models a temporary closure of the Strait of Hormuz that "removes close to 20% of global oil supplies from the market" during the first quarter. It finds that closing the Strait for 1, 2, or 3 quarters would increase Q4/Q4 headline PCE inflation in 2026 by 0.35, 0.79 and 1.47 percentage points, respectively, with core PCE inflation also rising but by smaller amounts. The authors note that when the closure is limited to one quarter, headline PCE inflation jumps sharply in March and April 2026 and only gradually reverses, implying a short‑term inflation shock rather than an economic benefit.

The ongoing military escalation in the region has disrupted shipping flows through this narrow passage. The resulting ripple effects go far beyond the region, affecting energy markets, maritime transport and global supply chains. Higher energy, fertilizer and transport costs may increase food costs and intensify cost-of-living pressures. The overall global economic impacts will depend on the duration and scale of the disruption.

The report states: "Since the U.S. imports 60 percent of its oil, most of the income devoted to paying higher oil prices leaves the country ($45 billion per year for every $10 increase in the annual price of oil)." It concludes: "Therefore, GDP is reduced by a higher oil price and a larger share goes abroad to pay for oil." For a simulated closure, "for the case where the market loses the entire volume of oil shipments from the Gulf for 30 days, 510 million barrels, EIA calculates a reduction in real GDP between $45 and $59 billion over two years, which represents between 0.4 and 0.5 percent of GDP" and an increase in inflation and unemployment.

UNCTAD describes the Strait of Hormuz as a chokepoint where disruptions can cause large oil price shocks that particularly burden net oil-importing economies. It notes that a 50% oil price increase raises the net oil import bill by more than 0.5% of GDP for many importers. The analysis stresses that such shocks worsen trade balances and strain growth in oil‑importing countries, while benefiting oil exporters through higher export revenues.

Deloitte analyzes a scenario where conflict in the Middle East raises oil prices and notes: "The conflict in the Middle East is expected to slow US economic growth relative to a no-conflict scenario." It explains that although the United States is the world’s largest oil producer, "higher oil prices are often transferred from consumers back to producers, and the net effect on economic growth tends to be mostly negative." The piece highlights that higher gasoline and natural gas prices weigh on US consumers, while weaker growth abroad and a stronger dollar also dampen US exports.

Reuters describes that effective closure of the Strait of Hormuz has "effectively halted roughly 20% of global petroleum flow" and warns that if such disruptions "persist beyond 30 days, economic modeling points to overwhelming recession risk for major importing economies, with oil potentially reaching $100 to $200 per barrel." The article notes that the conflict has removed roughly 20 million barrels per day of crude from global markets and pushed Brent and WTI prices to their highest levels since the June 2025 conflict. It concludes that disruption beyond 30 days carries clear global recession risk, while even short disruptions rapidly raise costs and propagate through supply chains, including for companies with no direct Gulf exposure.

This official economic note explains that the US energy trade balance has shifted with the shale boom: "The conjoint rise in oil exports and fall in imports have allowed the United States to approach equilibrium on the oil trade balance and to secure a larger share of the global oil and gas market." It finds that before 2010, higher oil prices clearly hurt US activity, but "since 2010 and the strong growth in domestic oil production, the impact of oil prices on the US economy has been less clear-cut" because higher prices now strongly boost hydrocarbon investment. However, it concludes: "Nowadays, the total net effect of a rise in oil prices on US activity may remain negative despite the shale oil revolution. A decrease in household purchasing power brought about by a rise in fuel prices might not be more than partly offset by the strong growth in investment in the oil and gas sector."

In the short run, firms cannot easily switch suppliers, reroute shipping, or renegotiate contracts. Refineries configured for Gulf crude cannot retool overnight, and many economies would face immediate price increases and bottlenecks if the strait were closed. The study models a global output loss and higher oil prices under closure scenarios.

The ECB box discusses how the US becoming a net oil exporter has changed the macro transmission of oil shocks: "As a result, the United States became a net exporter of oil in late 2019." It notes that higher oil prices can now support US domestic demand: "For instance, higher oil prices could make investment in the oil sector more attractive, supporting domestic demand and thus causing the US dollar to strengthen." At the same time, the ECB finds that this structural change has not fully reversed the traditional pattern: "The empirical results presented in this box indicate that the structural change in the US oil market has not been sufficient to turn the oil-dollar correlation systematically positive" and that the impact of oil shocks still depends on the nature of the shock and its global context.

This peer‑reviewed meta‑analysis reviews empirical studies on oil price shocks in net‑importing economies with a focus on the United States. It reports: "The general consensus among these studies is that shocks to oil prices result in a negative impact on the economies of countries that are net importers of oil." The paper notes that the net effect depends on the country's trade balance and energy sector size, but for net importers, oil price increases typically reduce GDP, even though some sectors (like domestic oil production) benefit.

Analyst Bob McNally says that in the United States, gas prices have already jumped by more than 65 cents a gallon since the war started. He also says the conflict has lifted the overall price of crude oil, which can benefit oil exporters, but frames the broader effect as a global economic shock and possible recession, not a short-term gain for the U.S. economy overall.

Economists interviewed by ABC News say the economic impact of the Iran war and disruption to shipping near the Strait of Hormuz depends heavily on how long it lasts. Mark Zandi of Moody’s Analytics states: "If the conflict and the disruption to oil supplies last a week or two, that’s no big deal. If it lasts a month or two, the economic consequences will become meaningful. Anything longer than that will do a lot of damage to the economy." Gregory Daco (EY‑Parthenon) adds that any threat to vessel safety in the Strait "immediately raises the risk of a system‑wide energy shock" and that a short‑lived conflict would still "slightly reduce economic growth" in the U.S. rather than boost it.

CBS reports that the Iran war "has disrupted traffic through the Strait of Hormuz, a strategic waterway through which one-fifth of the world's oil supply normally flows. Oil prices have jumped as a result, creating widespread consequences for Americans as they fuel their cars and book travel." It notes that Brent crude rose to about $105 a barrel, up 44% since before the war, pushing U.S. gas prices above $4 a gallon and lifting inflation to its highest level in nearly two years. Economist Gregory Daco projects the war "could drag GDP down by 0.3 percentage points this year, with GDP growing by 1.8% for the year," and economists warn that the financial pinch from higher energy prices could prompt consumers to pull back, creating a headwind for GDP growth.

Economists writing for VoxEU analyse the Iran war shock, which includes disruption of oil flows through the Strait of Hormuz, and estimate that "the surge in oil prices is expected to raise US headline inflation by 0.6 percentage points and core inflation by 0.2 percentage points in 2026." They highlight that the war‑related oil price shock works mainly through higher energy prices feeding into broader inflation, rather than providing an overall boost to U.S. output.

Baumeister and Kilian analyze the effect of the 2014–2016 oil price collapse and show that benefits to consumers can be offset by damage to the domestic oil sector. They write that many expected cheaper gasoline to boost the economy, but "average U.S. economic growth since June 2014 has been disappointingly low because higher consumer spending from cheaper gasoline has been offset by a dramatic drop in oil-related nonresidential investment—reducing the net stimulus for the U.S. economy effectively to zero." This illustrates that even in a major producer like the US, sectoral gains and losses from oil price movements can roughly cancel out rather than providing a clear net benefit.

ABC News summarises analysis that a prolonged closure of the Strait of Hormuz could cause a severe oil price shock. Oxford Economics is cited saying that a six‑month impasse could push global oil to $190 per barrel, which "would send global inflation to 7.7%, near its peak in 2022." An economist quoted says, "Oil feeds into inflation, which reduces raw purchasing power – how much bang for their buck people have. That slows the economy." The IMF is also cited warning that in a severe disruption of oil markets extending into next year, "the global economy would come close to experiencing a recession."

The World Economic Forum describes that war in the Middle East has caused significant damage to energy infrastructure and the "near closure of the Hormuz Strait, driving oil prices up." It emphasizes that the Strait is a major chokepoint not only for oil but also for LNG and other commodities, so disruption "risks higher input costs and supply chain bottlenecks" across multiple sectors. The article frames the closure as a global economic risk factor, with higher prices and uncertainty challenging growth rather than offering near‑term macroeconomic benefits to large importers like the United States.

Investopedia explains that if the Strait of Hormuz stays closed, "oil prices could surge past $150," which would "threaten the U.S. economy with inflation and higher gas costs." Citing Brookings analysis, it notes that Brent crude could rise to nearly $150 per barrel, and that such an increase "would likely elevate gasoline prices and exacerbate inflation," potentially leading to a recession. The article adds: "A significant increase in oil prices poses a threat to the U.S. economy" and quotes a Federal Reserve official saying the situation will "undoubtedly impact the economy," though the exact effects are uncertain.

In its overview of recent market developments, the IEA links the Iran conflict and intermittent disruptions around the Strait of Hormuz with a sharp rise in oil prices. It notes that higher prices "act as a tax on consumers in oil‑importing economies" and tend to weigh on growth and increase inflation. The report emphasizes that while some oil‑exporting countries benefit from higher export revenues, major net importers such as the United States face higher import bills and pressure on household purchasing power and industrial costs.

An industry‑commissioned analysis by ICF for API and AXPC examines the macro effects of lifting the U.S. crude export ban. It reports that enabling open markets "reduced global oil prices by an average of $1.93 per barrel; added $161 billion to U.S. GDP; and increased jobs in the U.S. by nearly 50,000, on average" over six years. The report argues that U.S. crude exports "saved Americans money at the pump" and supported jobs, implying that lower, not higher, global oil prices were associated with positive short‑term outcomes for US GDP and consumers in this period.

In a client note on market volatility, U.S. Bank writes that "constrained Strait of Hormuz traffic keeps energy and shipping risks elevated despite the ongoing ceasefire." It notes that while financial markets initially sold off and later recovered, "higher oil, gas and shipping costs are likely to weigh on global growth" and contribute to inflation pressures. The analysis characterizes the Strait of Hormuz disruption as a risk factor for the U.S. and global economy, not as a short‑term net positive, even though some energy sector equities may benefit from higher prices.

The IMF’s update discusses the impact of the Iran war and associated oil market tensions. It notes that disruption risks around the Strait of Hormuz have contributed to higher oil prices, which "are projected to raise headline inflation in advanced economies" and weigh on growth relative to the no‑war baseline. In a downside scenario with more severe and prolonged disruption of oil supply routes, the IMF warns that the global economy "would come close to experiencing a recession," with oil‑importing advanced economies facing greater output losses.

CSIS describes how the US role in oil markets has changed, noting that the country is now a major exporter of hydrocarbons: "The United States is now the world's largest exporter of refined petroleum products and in 2016/2017 became a net exporter of natural gas." It also emphasizes that the US remains the world’s largest oil consumer and still imports some crude, so the macroeconomic effect of oil price changes is mixed: higher prices increase revenues and investment in the energy sector but simultaneously raise costs for consumers and non‑energy businesses.

In its discussion of global energy price shocks, the IMF notes that unexpected increases in oil prices tend to reduce global growth while raising inflation. For advanced economies, including the United States, the IMF explains that higher oil prices act like a tax on consumers and energy‑using firms, lowering real disposable income and profits. It also notes that oil exporters may see higher export revenues and investment, but for diversified economies with large consumer sectors, the overall short‑term effect of large oil price spikes is generally negative for GDP relative to a no‑shock baseline.

The BLS overview explains that the United States, historically a net importer of oil, has generally experienced negative macroeconomic effects from sudden oil price increases. It notes that major oil price spikes have often been associated with subsequent recessions, as higher energy costs squeeze household budgets and raise business input costs. The article highlights that while rising prices can boost revenues and investment in the domestic oil sector, these gains typically do not offset the broader drag on consumption and non‑energy sectors.

Even attempting it could trigger a global economic shock. Persistent threats to shipping could take weeks or months to suppress, making long-term control costly and destabilizing for the world economy.

CohnReznick describes the "effective closure of the Strait of Hormuz" as "reshaping costs, supply chains, and risk" for U.S. businesses. It warns that shipping delays and higher freight and insurance rates are already rippling through supply chains, increasing costs for firms far beyond the Middle East. The piece advises U.S. companies to prepare for higher input prices, delays, and margin pressure, presenting the situation as an operational and financial challenge rather than an economic boon.

In an IMF video discussion on the conflict and the Strait of Hormuz, analysts note that even if oil and gas flows resume once the conflict ends, "severe damage to production facilities could have lasting impacts on the global economy." One IMF economist explains that in the short term, significant damage to oil and gas facilities "means that there’s going to be less supply going into the market" and that this "is going to be a hurdle for global growth, higher prices, inflation." The discussion frames the disruption as generating higher inflation and lower growth globally, including for advanced economies such as the United States.

The conflict has disrupted global transportation networks, affecting both maritime shipping and air travel. The closure of the Strait would tighten energy and food markets, with spillovers through freight costs, insurance premiums, and inflationary pressure.

This FT explainer video states that higher oil prices generate "windfall profits for energy producers and refiners" in the United States but points out that "the United States is also the world's largest oil consumer, using roughly 20 million barrels every day." It explains that when global prices rise, American drivers feel it immediately via higher gasoline and diesel prices, which "push up transport costs, food prices, airline tickets, and the cost of nearly every product moved by truck, rail, or ship." The video concludes that energy shocks drive inflation and can force the Federal Reserve to keep interest rates higher for longer, raising borrowing costs across the economy, so the overall effect of expensive oil can be burdensome even for the largest producer.

Economic research and historical episodes (such as the 1973–74 oil embargo, the 1979 Iran crisis, and the 1990 Gulf crisis) show that sharp oil supply disruptions tend to raise inflation and reduce real GDP growth in the United States in the short run. As a net oil‑importing country for most of the modern period, the U.S. typically experiences a negative real income effect from higher oil prices, even though some domestic producers gain, because households and non‑energy businesses face higher energy costs that outweigh those gains at the aggregate level.

The latest escalation between the U.S., Israel, and Iran has jolted oil markets and revived fears of a Hormuz supply shock. The piece focuses on market disruption and price risk rather than a clear short-run macroeconomic benefit for the United States.