PARIS — Europe might face significant challenges with jet fuel availability, having only about six weeks left in reserve, according to the International Energy Agency’s chief. This warning comes amid potential flight disruptions if the ongoing conflict involving Iran continues to impede oil supplies.

Fatih Birol, the Executive Director of the IEA, highlighted the severe global consequences of “the largest energy crisis we have ever faced.” This crisis is primarily due to the restricted flow of crucial energy resources, including oil and gas, through the strategically vital Strait of Hormuz.

Birol referenced the situation as a “dire strait,” drawing a parallel to the famous band, and emphasized its grave implications for the global economy. He noted that prolonged disruptions could negatively impact economic growth and exacerbate inflation worldwide.

As a result, consumers should brace for increased prices at the pump, elevated natural gas costs, and a spike in electricity bills, Birol explained from his Paris office with a view of the Eiffel Tower.

The economic strain will disproportionately affect various regions, with developing countries in Asia, Africa, and Latin America bearing the brunt. These nations, Birol noted, often have less influence on the global stage, despite being hit hardest by such crises.

Birol concluded that without a resolution to the conflict that ensures the Strait of Hormuz remains open, the adverse effects will extend globally, impacting everyone.

“Some countries may be richer than the others. Some countries may have more energy than the others, but no country, no country is immune to this crisis,” he said.

‘Slow growth or even recession’

Nearly 20% of the world’s traded oil passes through the Strait of Hormuz in peacetime. Birol warned that not reopening the waterway within weeks could compound the repercussions for global energy supplies.

“In Europe, we have maybe six weeks or so (of) jet fuel left,” he said. “If we are not able to open the Strait of Hormuz … I can tell you soon we will hear the news that some of the flights from city A to city B might be canceled as a result of lack of jet fuel.”

Dutch airline KLM and U.K.-based budget carrier easyJet said Thursday that they were not experiencing current fuel shortages, without commenting further on the IEA’s warning. Meanwhile, U.S. carrier Delta Air Lines – which frequently flies to destinations across Europe – said it was aware of the continent’s “potential jet fuel supply issue” and monitoring the situation, although it didn’t expect immediate impacts. Still, all three airlines are among those that have already seen higher costs eat into their budgets.

KLM is cutting 160 flights to and from Amsterdam’s Schiphol airport next month, accounting for about 1% of its total European routes. The airline cited “rising kerosene costs,” and said a limited number of flights are “no longer financially viable to operate.”

Travelers are already paying the consequences. Beyond flight cancellations, some carriers are increasing ticket fares and add-on fees.

Birol added: “Many government leaders tell me that if Hormuz is not open until (the) end of May, many countries – starting from the weaker economies – are going to face huge challenges, and this will go from the high inflation numbers to coming close to slow growth or even to recession in some cases.”

Birol spoke out against the so-called “toll booth” system that Iran has applied to some ships, letting them travel through the strait for a fee. He said allowing that to become more permanent would run the risk of setting a precedent that could then be applied to other waterways, including the vital Malacca Strait in Asia.

“If we change it once, it may be difficult to get it back,” he said. “It will be difficult to have a toll system here, applied here, but not there.”

“I would like to see that the oil flows unconditionally from the point A to point B,” he said.

Damage for Persian Gulf energy facilities

More than 110 oil-laden tankers and over 15 carriers loaded with liquefied natural gas are waiting in the Persian Gulf and could help ease the energy crisis if they could escape through the Strait of Hormuz to world markets, Birol said, adding: “But it is not enough.”

Even with a peace deal, war-damage to energy facilities means it could be many months before preconflict levels of production are restored, he said.

“Over 80 key assets in the region have been damaged. And out of these 80, more than one-third are severely or very severely damaged,” he said.

“It will be extremely optimistic to believe that it will very quick,” Birol said. “It will take gradually, gradually, up to two years to come back where we were before the war.”

‘Dark shadow’ of geopolitics

Birol said it is incomprehensible that “a couple of hundred men with guns” – apparently referring to Iranian forces – are able to hold hostage the global economy. He said his Paris-based agency, which advises governments on energy policy and helped coordinate a record release of emergency oil reserves earlier in the crisis, has warned for years about the critical importance of the Strait of Hormuz.

The global shock could spur the embrace of other energy technologies, including nuclear power, and “will reshape the global energy map for the next years to come,” he said.

On his office shelves, Birol has a couple of soccer balls – he’s a devoted supporter of the Turkish club Galatasaray – and other memorabilia, including a photo of his late father playing soccer, and reams of books. One in particular stood out for its timely title: “Oil, Power and War.”

“Energy and geopolitics have been always interwoven,” Birol said. “But I have never, ever seen … such a dark and long shadow of geopolitics.”

He added: “Unfortunately, energy is at the heart of many conflicts which, again, makes me, as an energy person, rather sad, to be honest.”

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AP Business Writer Wyatte Grantham-Philips contributed from New York.