A persistent shortage of diesel and jet fuel extends back several years, according to analysis presented in this perspective piece. While recent geopolitical events including the closure of shipping routes have exacerbated the situation, the underlying issue reflects deeper structural problems in global petroleum supply and demand dynamics.
The scarcity of these middle distillates is tied to the physical and chemical properties of crude oil. Heavier crude oils, which produce a disproportionate share of diesel and jet fuel, are substantially more costly and complex to extract, refine, and transport compared to lighter crude varieties. Lighter oils, such as those from U.S. shale production, tend to yield greater quantities of gasoline and lighter products. As easily accessible medium-weight crude reserves have depleted over time, production has increasingly shifted toward lighter oils, creating a structural mismatch between available supply and demand for middle distillates.
The economic challenges surrounding this shortage are compounded by interconnections between energy costs and broader economic activity. Higher diesel prices directly increase food costs due to the fuel’s essential role in agricultural production and transportation. Similarly, elevated gasoline prices constrain consumer budgets. Policymakers have sometimes responded to energy price increases by raising interest rates, a strategy that can create additional economic stress by increasing borrowing costs for households and businesses simultaneously with energy price spikes.
Addressing the long-term shortage will likely require structural economic transformation. One approach involves reducing reliance on diesel and jet fuel through consumption patterns and technological changes. Additionally, investments in extracting and refining heavier crude oils at lower cost could expand supply of these critical fuels. A substantial price premium for diesel relative to gasoline may be necessary to reflect the true production costs of heavier oils and incentivize greater long-term extraction, despite the downstream impacts on food and transportation costs that such increases would entail.
Current price elevations for diesel and jet fuel reflect not only production constraints but also elevated transport and insurance costs related to geopolitical risks. These prices may need to persist or increase further to encourage sustained investment in heavy oil production, even as such pricing pressures threaten to squeeze household and business budgets and potentially contribute to economic slowdown.
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