US Gas Prices Reach Highest Level Since Start of Iran War

The number on the gas station sign tells a story that eight weeks of war have written in real time. On April 28, 2026, the national average price for a gallon of regular gasoline reached $4.26 — the highest since the conflict with Iran began on February 28 [1]. That represents a $1.20 increase, or roughly 40%, in under two months [2]. Diesel, the fuel that moves American freight, has climbed even faster: $5.46 per gallon, up 45% [1].

The International Energy Agency has called the disruption "the biggest energy security threat in history" [3]. Whether that label holds up against the 1973 OPEC embargo depends on how the next several months unfold. What is already clear is that the economic consequences extend far beyond the pump.

The Price in Context: Where $4.26 Fits Among Historical Shocks

Current prices are painful but not unprecedented. Adjusted for inflation to 2026 dollars, the 2008 financial crisis peak reached approximately $5.96 per gallon, and the June 2022 spike during the Russia-Ukraine war hit $5.81 [4][5]. The 1973 OPEC embargo, often cited as the defining oil shock, translates to roughly $3.61 in today's dollars [6]. The 1990 Gulf War spike was milder still at $2.88 adjusted [6].

Source: EIA, BLS

Data as of Apr 28, 2026CSV

The current $4.26 average sits between the 1973 embargo and the 2008 and 2022 peaks — but the trajectory matters more than the snapshot. Prices crossed $4.00 on April 2, dipped briefly mid-month, then surged to new highs as ceasefire negotiations lost momentum [7]. If the Strait of Hormuz remains contested, analysts at Bloomberg have modeled scenarios where prices could approach $6.00 [8].

The Supply Hole: 13 Million Barrels Per Day

The scale of the supply disruption is staggering. The Strait of Hormuz, through which roughly 20% of global oil trade flows, has been effectively closed to commercial traffic since early March [3]. The IEA estimates that 13 million barrels per day have been removed from global markets [9].

Source: IEA, OPEC

Data as of Apr 23, 2026CSV

The losses are concentrated but widespread across the Gulf. Saudi Arabian production dropped from 10.4 million barrels per day in February to 7.25 million in March — a loss of 3.15 million bpd [3]. Iraq lost nearly two-thirds of its output, falling from 4.57 million to 1.57 million bpd [3]. Kuwait's supply dropped from 2.54 million to 1.19 million bpd [3].

Before the conflict, OPEC+ had been managing a deliberate strategy of production restraint, with roughly 3.24 million bpd of voluntary cuts still in place [10]. JPMorgan had warned in early 2026 that without further cuts, prices could slide toward $40 per barrel due to oversupply [10]. The IEA had projected one of the largest quarterly oversupplies in recent memory for Q1 2026, with inventories potentially rising by 5 million bpd [10]. The war made those projections irrelevant overnight.

Decomposing the Price Increase: What Policymakers Can and Cannot Control

Not all of the $1.20 increase traces to Iranian supply disruption alone. The breakdown matters because it determines which policy levers can actually move prices.

The dominant factor is the physical supply loss from the Strait of Hormuz closure, which accounts for the bulk of the crude oil price increase [3][8]. But domestic refinery capacity constraints compound the problem. U.S. refineries were already operating near maximum utilization rates before the crisis, limiting the ability to convert additional crude — even if it were available — into gasoline [4].

OPEC+ production decisions represent a variable that could, in theory, offset some of the loss. Saudi Arabia and the UAE hold spare capacity that could be brought online if the Strait reopened or alternative export routes were secured [10]. Speculative activity in oil futures markets has amplified price movements, as traders price in worst-case scenarios for the conflict's duration [8].

The uncomfortable reality for policymakers: the lever they most directly control — the Strategic Petroleum Reserve — is limited in both volume and effectiveness.

The SPR Question: Can Washington Move the Needle?

The Strategic Petroleum Reserve was designed for exactly this kind of crisis. But its current capacity and the history of previous releases suggest significant limitations.

The 2022 release under the Biden administration was the largest in SPR history: 180 million barrels over six months [11]. A U.S. Treasury analysis estimated it lowered gasoline prices by 17 to 42 cents per gallon, with a central estimate of 38 cents [12]. That release, however, drew the SPR down to its lowest level in 40 years [11].

The 1991 Gulf War release was smaller — 33.75 million barrels over 45 days — but was part of a coordinated international effort that carried significant signaling value [11].

Standard Chartered has estimated that at current depletion rates, an SPR release could bridge the supply deficit for roughly 50 days [3]. The legal framework requires that releases be authorized for "severe energy supply interruptions" — a threshold clearly met — but logistical constraints on drawdown rates and the depleted state of reserves limit the scale of any intervention [11].

The effectiveness of SPR releases appears to depend more on market psychology and coordination with allies than on raw volume. The 2022 release coincided with a broader easing of supply conditions; isolating its independent effect is difficult [12].

Who Pays: The Uneven Geography of Gas Prices

The $1.20 increase does not fall equally across American households. The burden is distributed along lines of income, geography, and vehicle dependency.

Low-income households devote approximately 31% of their income to transportation costs, compared with a national average of 13% [13]. At $6.00 per gallon — a price some states have already approached — drivers earning up to $40,000 per year would spend between 11% and 38% of after-tax pay on fuel alone [13].

Rural households spend roughly $1,360 more per year on gasoline and diesel than their urban counterparts, a gap of about 20% [14]. They drive longer distances, often in older and less fuel-efficient vehicles, with no public transit alternative [15]. The cascading effects compound the direct cost: food prices rise because trucks cost more to operate; heating oil prices track crude; and rural employers face pressure from commuting costs that suburban workers partially absorb through shorter distances [14].

Urban residents with access to public transit have more options to substitute away from driving, but even in cities with robust transit systems, lower-income workers often hold jobs in locations not well served by existing routes [13].

Iran's Oil Trade: Where the Barrels Were Going

Before the conflict, Iran was exporting approximately 1.5 million barrels per day, with China accounting for roughly 91% of purchases [16]. Iranian crude traded at an $8-10 per barrel discount to the Brent benchmark, primarily purchased by independent refiners in China's Shandong province [17]. Shipments were frequently relabeled or transshipped through Malaysia and Indonesia to obscure their origin [16].

The UAE served as the main transshipment hub, absorbing approximately $4.41 billion of Iranian oil trade in 2025 [18]. India, which had been a significant buyer during periods of looser sanctions enforcement, was notably absent from the trade by early 2026 [16].

The redirection of these barrels matters for U.S. consumers even though very little Iranian crude was flowing directly to American refiners. When China loses access to discounted Iranian supply, it competes more aggressively for barrels from West Africa, Latin America, and other sources that U.S. refiners also bid on [17]. The supply loss tightens the global market, not just the bilateral one.

The Inflation Cascade: "Warflation" Beyond the Pump

Source: BLS / Bureau of Labor Statistics

Data as of Mar 1, 2026CSV

The BLS gasoline CPI index surged to 328.9 in March 2026, up 18.9% year-over-year [4]. That spike is already bleeding into broader inflation measures.

Source: FRED / Bureau of Labor Statistics

Data as of Mar 1, 2026CSV

The overall Consumer Price Index rose to 330.29 in March, a 3.3% year-over-year increase that represented the largest monthly spike in four years [19]. The OECD now projects U.S. inflation will average 4.2% for 2026, reflecting the energy shock [20].

The term "warflation" has entered economic commentary to describe the phenomenon [20]. The second-order effects are measurable across sectors:

Freight: Rising diesel costs are squeezing trucking margins. FreightWaves reported that the freight industry recovery that appeared "finally within reach" in early 2026 has been pushed back indefinitely [21]. Higher freight costs pass through to the price of virtually every physical good that moves by truck — which is most of them.

Food: The agricultural sector faces a triple pressure: diesel for farm equipment, fuel for delivery trucks, and energy for refrigeration. These inputs affect prices from farm gate to grocery shelf [14].

Airlines: Carriers are raising ticket prices, canceling routes, and rerouting flights to circumnavigate the Middle East, adding both journey time and fuel costs [20]. Jet fuel prices have risen in parallel with crude.

Manufacturing: Industries with high energy input costs — chemicals, steel, cement, glass — face margin compression that will either be passed to buyers or absorbed through reduced output [20].

If prices remain at current levels for six to twelve months, the cumulative effect on household budgets will extend well beyond the direct cost of gasoline. The Federal Reserve faces a familiar dilemma: tightening monetary policy to contain inflation risks slowing an economy already absorbing an energy shock.

The Steelman for High Prices: Accelerating the Transition

There is a case — made more often in European policy circles than American ones — that sustained high gasoline prices produce long-term benefits that low prices delay.

The evidence from Europe's experience offers partial support. EU countries registered over 500,000 new electric vehicles in Q1 2026, a 33.5% year-over-year increase [22]. A broader measure showed European EV sales surging 51% in one recent period, with high oil prices cited as the primary driver [23]. France leads large markets with a 28% EV share in March, aided by a social leasing program that makes EVs accessible to lower-income households [22].

Current EV adoption in Europe already displaces approximately 2 million barrels of oil demand annually [23]. Long-term projections suggest EVs could displace 20 million barrels per day by 2040 [23].

In the United States, NBC News reported that the Iran war has "sparked fresh interest in EVs" among consumers [24]. But the American case is complicated by affordability: the median new EV still costs significantly more than the median new internal combustion vehicle, and the used EV market remains thin [24]. For a rural household spending 31% of income on transportation, the upfront cost of an EV is prohibitive regardless of the fuel savings [13].

The steelman position holds that price signals are the most powerful mechanism for shifting consumer behavior and investment toward alternatives. The counterargument is that the transition costs fall hardest on those least able to bear them, and that policy-driven transitions — through subsidies, infrastructure investment, and regulation — can achieve similar goals without the regressive distributional effects.

What Would It Take to Unwind the Shock?

Historical precedents suggest that oil price shocks do not resolve quickly, even after their proximate causes end.

The 1973 OPEC embargo lasted five months, from October 1973 to March 1974. Oil prices nearly quadrupled, from $2.90 to $11.65 per barrel [6]. But the economic consequences — including unemployment rising from 4.6% to 9% and a GDP contraction the following year — took years to fully work through [6]. The recession that followed was among the deepest of the post-World War II era [25].

The 1990 Gulf War produced a sharper but shorter price spike. Oil prices roughly doubled between August and October 1990, then fell back within months of the war's conclusion in February 1991 [6]. The key difference: Saudi Arabia rapidly increased production to offset lost Kuwaiti and Iraqi supply, and the physical infrastructure of the oil market was largely undamaged.

The 2011 Libya disruption removed roughly 1.6 million bpd from the market. Prices took approximately 12 to 18 months to return to pre-disruption levels, even after Libyan production partially resumed [11].

For the current crisis, analysts identify several conditions that would need to change for prices to return to pre-conflict levels: reopening or securing alternative passage through the Strait of Hormuz; a ceasefire that allows Gulf states to resume full production; restoration of port and pipeline infrastructure; and a credible diplomatic framework that reduces the risk premium traders are pricing into futures contracts [8].

Al Jazeera's direct comparison of the current crisis with 1973 notes a critical similarity: in both cases, the disruption affected not just one country's exports but the primary chokepoint for an entire region's production [26]. The 1973 embargo was resolved through diplomacy. Whether the current conflict follows a similar path depends on negotiations that, as of late April, have stalled [1].

The Road Ahead

The $4.26 gallon is a data point, not a destination. The CPI gasoline index, crude oil futures, and the daily AAA average will continue to reflect the military and diplomatic trajectory of the Iran conflict. What is already measurable is the breadth of the economic impact: from the trucker in Mississippi paying 45% more for diesel to the grocery shopper absorbing freight-driven food price increases to the airline passenger paying a fuel surcharge on a rerouted flight.

The policy toolkit — SPR releases, diplomatic engagement, domestic production incentives — can moderate the trajectory. But the fundamental constraint is physical: 13 million barrels per day cannot be replaced by executive action. The market will resolve through some combination of demand destruction, alternative supply, and — eventually — a change in the conditions that created the shortage.

For American consumers, the question is not whether prices will come down, but when, and how much economic damage accumulates in the interim.