When guns fire, the world pays at the pump

There is a rule written not in textbooks but in oil futures and utility bills: when nations go to war, the world pays at the pump. The conflict between the United States and Iran, which erupted in late February 2026, has confirmed that rule with precision. IEA executive director Fatih Birol has described it as the "greatest global energy security challenge in history."

Fortune reported that Brent crude was trading at $97.06 per barrel as of April 16th, which is roughly $31 above where it stood a year ago. That is a modest retreat from the conflict's peak. Chatham House noted that global oil prices soared to almost $120 a barrel at the height of the fighting, as the effective halting of Strait of Hormuz shipments took hold. CBS News cited a Joint Economic Committee estimate showing that consumers had already paid an additional $8.4 billion in fuel costs within the conflict's first month alone.

The Strait of Hormuz: The world’s most dangerous bottleneck

Goldman Sachs Research estimates that the Strait of Hormuz carries roughly one-fifth of the world’s daily oil and liquefied natural gas supply, approximately 20 million barrels per day. Saudi Arabia, Iraq, and the UAE alone exported 13.1 million barrels per day through the Strait last year.

Data from energy analytics firm Kpler shows that roughly 15 million barrels per day of crude and condensate cross the Strait daily under normal conditions. Should those flows remain cut, analysts note that available pipeline infrastructure could absorb only 5 to 7 million barrels per day, leaving upward of 8 million stranded. The Center on Global Energy Policy at Columbia University has established that no available pipeline network is capable of fully bypassing the Strait, even using Saudi Arabia’s east-west pipeline and the UAE’s Gulf of Oman facilities combined.

Renewable Matter documented the severity of infrastructure damage: the Ras Laffan industrial complex in Qatar, which accounts for roughly 20% of global LNG production, has suffered damage that has reduced its export capacity by 17%. Rystad Energy estimates the total cost of rebuilding regional energy infrastructure could exceed $25 billion.

A ripple effect that touches everything

Wars do not raise only petrol prices. They raise the price of everything that moves, heats, cools, or feeds. The Morgan Stanley research estimates that a 10% increase in oil prices pushes headline consumer prices up by approximately 0.35% over the following three months. Since the conflict began, oil has risen far beyond 10%.

The Center for American Progress reported that some jet fuel prices doubled at the height of the conflict. The World Economic Forum has drawn attention to cascading cost pressures: surging fuel, freight, and insurance expenses are pushing up manufacturing costs across entire industrial supply chains, including, with bitter irony, those for solar panels, batteries, and wind turbines. There is a painful irony at the heart of this crisis: the very conflict that has made clean energy indispensable is also making it more expensive and harder to build.

Europe’s painful lesson repeated

Europe has seen this film before. A 2023 study cited by the Insurance Journal found that Europe’s excess fossil fuel spending since the Russia-Ukraine War amounted to roughly 40% of the investment needed to transition its entire power system to clean energy. Rather than reducing structural dependency, many European governments built new LNG terminals, only to find themselves re-exposed when the next geopolitical shock arrived.

The Bruegel think tank reported that Europe entered 2026 with gas storage at just 46 billion cubic metres at the end of February, compared to 60 bcm in 2025 and 77 bcm in 2024. Chatham House data showed Dutch TTF gas benchmarks nearly doubling to over €60 per megawatt-hour by mid-March. Those same reports confirmed that the ECB postponed planned rate cuts and raised its 2026 inflation forecast as a direct consequence. As Bruegel concluded: Bruegel researchers put it bluntly: Europe’s vulnerability “remains rooted in its continued reliance on imported fossil fuels traded on volatile global markets” a structural flaw no amount of short-term crisis management can paper over.

The paradox of the green transition

Here is the central paradox of this moment: in the short run, war has slowed the energy transition by raising the cost of its components and draining capital into fossil fuel management. In the long run, it may prove to be its most powerful accelerant. The International Renewable Energy Agency found that renewable power accounted for 85.6% of all new energy capacity installed worldwide in 2025, with renewables now making up a record 49.4% of total global energy capacity, up from 46.3% in 2024. A UN analysis concluded that over 90% of new renewable energy projects are now cheaper than equivalent fossil-fuel alternatives.

The World Resources Institute found that countries which invested in domestic clean energy systems before the guns fired are faring best through this crisis. Pakistan’s solar expansion has preempted more than $12 billion in fossil fuel imports since 2020. Coupled with that, China now generates nearly 36% of its electricity from solar, wind, and hydropower, up from just 16% in 2000 .

IEA chief Fatih Birol, speaking at the National Press Club in Australia, made his expectation plain: “One of the responses to this crisis will be an acceleration of renewables, not only because they help reduce emissions, but because they are a homegrown domestic energy source.” Furthermore, this crisis will prove to be a medium-to-long-term accelerant for clean energy deployment globally.

The verdict of history, written in real time

reNews captured the dynamic in a phrase that has become something of a market axiom: “what is bad for fossils is good for renewables.” That logic is playing out in slow motion. BCA Research struck a cautionary note: even a full reopening of the Strait would not quickly unwind the damage. Prices will stay above pre-war levels for months as governments rebuild depleted reserves and invest in hardening their energy infrastructure against the next crisis.

Wars do not simply raise energy prices, they reshape entire energy systems and sometimes for decades. The 1973 oil embargo accelerated France’s nuclear programme. The 1979 Iranian Revolution drove Japan’s aggressive energy-efficiency push. The current conflict has made the case for renewables more powerfully than any climate summit ever could. Every spike in the price of a barrel of oil, every resulting surge at the pump, and every food price increase to follow is a living argument for an energy system built on domestic, stable, and inexhaustible sources.

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