Europe’s energy trap in the Iran war

The US-Israeli war on Iran has exposed more than Europe’s diplomatic divisions. It has revealed a deeper structural truth: even when Europe refuses to own Washington’s war, it remains bound to its consequences by energy dependence, economic exposure, and limited strategic room for manoeuvre.
Europe’s response to the US-Israeli war on Iran has appeared divided, hesitant, and at times contradictory. Yet the deeper problem is not simply diplomatic disunity. It is a structural dependence. This conflict is exposing what may be called a double curse of oil: for Europe, dependence on imported hydrocarbons limits real strategic autonomy; for Gulf producers, dependence on hydrocarbon revenues and export routes turns wealth into vulnerability when access is threatened.
Oil itself is not the curse. It remains indispensable to transport, industry, petrochemicals, shipping, aviation, agriculture and much of the material basis of economic growth. The problem begins when an economy becomes so dependent on uninterrupted hydrocarbon flows that its political room for manoeuvre narrows under stress. Europe still operates within that constraint. Eurostat reported last week that the EU imported €336.7 billion worth of energy products in 2025, amounting to 723.3 million tonnes. That is not a picture of post-oil independence. It is a picture of managed dependence.
This helps explain why Europe’s language on the war has been so carefully calibrated. At the EU level, the official line has stressed maximum restraint, civilian protection, respect for international law, and concern over escalation in the Gulf. But Reuters reported from the outset that this common position was, in reality, a compromise formula reflecting genuine disagreement within Europe over the US-Israeli strikes, the legal questions involved, and the limits of solidarity with Washington. Europe’s public unity has therefore masked private divergence.
Spain has been among the boldest critics. Reuters reported that Pedro Sánchez argued global citizens should not pay the price of this war and that Madrid steadily hardened its line, culminating in Spain’s closure of its airspace to US military aircraft involved in the campaign against Iran. Germany has taken a different but still important position. Chancellor Friedrich Merz, hardly a natural anti-American dissenter, has said plainly that Germany would not participate in the war, and Reuters later reported that he also voiced doubts about its aims. Britain, by contrast, has tried to preserve alliance discipline without becoming a full military partner in the conflict. These are not identical positions, but they reveal a common instinct: distance from co-ownership, without a full break from Washington.
That caution is rooted not only in diplomatic calculation, but in material exposure. Europe is not the party most directly exposed to the Strait of Hormuz in volumetric terms. The International Energy Agency says that in 2025, nearly 20 million barrels per day of oil moved through the Strait, but only around 600,000 barrels per day of the region’s crude flows, roughly 4 per cent, were routed into Europe. Asia is far more directly exposed in oil terms.
Yet Europe remains highly vulnerable through prices, liquefied natural gas, refined products, insurance costs, and wider industrial confidence. The IEA also notes that just over 10 per cent of LNG passing through Hormuz goes to Europe. That is enough to make the continent economically sensitive even when it is not the main physical destination of Gulf oil.
That sensitivity is no longer abstract. Reuters reported this week that the EU has warned member states to prepare for prolonged disruption to energy markets due to the war. The same report says Europe’s crude oil and natural gas supplies have not been directly affected by the closure of Hormuz, but refined petroleum products, especially jet fuel and diesel, are more vulnerable.
Earlier reporting also showed European officials already grappling with a sharp rise in gas prices and broader inflationary pressure as the war spread through energy markets. Europe may not be the battlefield, but it is well within the zone of economic consequence.
This is where the other half of the double curse appears. For Gulf producers, oil has long been a source of revenue, state capacity, strategic weight, and social spending. But heavy reliance on hydrocarbon exports and maritime routes can also become a trap. A producing state may possess energy wealth and still find itself constrained if shipping lanes are threatened, export volumes disrupted, or investor confidence shaken.
On one side of the system sit consumers who need steady access to imported energy. On the other sit producers who need steady access to markets and routes. War in the corridor between them reveals how quickly strength can turn into captivity. That is not a moral failing of oil. It is a structural consequence of overdependence.
Europe’s posture, then, should not be misread as mere weakness. It is better understood as dependency management under geopolitical pressure. Europe cannot fully endorse a war it did not design and does not control. It also cannot easily detach itself from the economic consequences of that war. Its largest powers are therefore trying to maintain alliance relations with Washington while refusing co-ownership of the campaign itself. This is a narrower and more revealing reality than either “European solidarity” or “European rebellion”. Europe is not breaking with America. It is trying to avoid being consumed by American choices.
The larger lesson is sobering. Europe’s strategic vocabulary often suggests autonomy, transition and resilience. But this war has shown that dependence still shapes behaviour more than rhetoric does. The consuming side of the oil order remains vulnerable to price and product shocks. The producing side remains vulnerable to route and revenue shocks. That is the true double curse of oil: not the existence of the resource, but the narrowing of political freedom that follows when entire systems become organised around uninterrupted energy flow. In that sense, this war is not only testing military alignments. It is exposing the limits of strategic autonomy in a world still ruled, in decisive measure, by hydrocarbons. It is testing sovereignty.