The era of cheap crude oil may have come to an abrupt end with the Iran conflict, as Brent crude’s surge past $90 a barrel signals a structural shift in global energy pricing that could last well beyond the immediate crisis. The more than 25% weekly gain — the biggest since the Covid-19 pandemic — reflects not just a geopolitical shock but the accumulated vulnerability of a global energy system that has too many of its critical nodes concentrated in a single unstable region.
The structural argument for permanently higher oil is straightforward. The Gulf region, which supplies the largest share of the world’s oil, is now a conflict zone. The Strait of Hormuz, the only exit route for Gulf energy, is under military threat. Storage infrastructure across the Gulf is filling because oil cannot be moved. Kuwait has cut production, Saudi Arabia and UAE face the same situation within 20 days, and Qatar’s LNG exports are disrupted. These are not temporary disruptions — they reflect deep geopolitical fault lines that will not be resolved quickly.
For oil companies and energy investors, the shift to a permanently higher price environment would be transformative. Exploration and production projects that were economically marginal at $70 oil become very attractive at $91 or above. The incentive to invest in new production outside the Gulf region would increase dramatically. But new oil production takes years to develop — in the short and medium term, the supply constraints are structural, not easily resolved.
Qatar’s energy minister has provided the extreme upside case: $150 per barrel, reached within weeks if the conflict forces all Gulf exporters to halt production. Even without that scenario materializing, the combination of the conflict, storage constraints, and damaged infrastructure suggests that oil prices are unlikely to return quickly to pre-war levels. The era of cheap crude is being replaced by something considerably more expensive.
Financial markets have priced in some of the structural shift. Bond yields have surged to multi-year highs, rate cut expectations have been abandoned, and stocks have fallen sharply. Airlines — businesses built on the assumption of relatively affordable fuel — have been among the biggest casualties. The question now is not whether the oil price era has changed, but how long the new era will last.