A disruption to global oil supplies would do far more than push up petrol prices. Crude oil is the raw material for thousands of products that underpin modern economies, from food packaging and synthetic clothing to medicines, fertilisers and electronics — and a key chokepoint for its supply sits at the centre of one of the world’s most volatile regions.
The Strait of Hormuz, a narrow waterway between Iran and Oman, handles roughly one-fifth of the world’s daily petroleum liquids consumption. Any significant interruption to shipping through the strait would send shockwaves well beyond energy markets.
Crude oil is a complex mixture of hydrocarbons that refineries break down into chemical building blocks — principally ethylene, propylene and benzene — which manufacturers then convert into plastics, synthetic rubber, solvents and other industrial materials. While fuel is the most visible output, it represents only a portion of what refineries produce.
Plastics derived from these petrochemicals appear in food packaging, medical equipment, electronics, automotive parts and construction materials. Even renewable energy infrastructure — wind turbines, solar panels and electric vehicles — relies on plastic components made from petrochemical feedstocks.
Agriculture is equally exposed. Modern fertilisers depend on ammonia produced through the Haber-Bosch process, which requires hydrogen typically derived from natural gas or other fossil fuels. Without them, global crop yields would fall sharply. Petrochemicals are also used in pesticides, herbicides and irrigation equipment.
Consumer goods tell a similar story. Synthetic fabrics such as polyester, nylon and acrylic are made from petrochemical feedstocks, as are many ingredients in cosmetics and personal care products. In healthcare, petroleum-derived compounds are used to manufacture pharmaceuticals, medical tubing, sterile packaging and disposable gloves.
Petrochemical feedstocks account for an estimated 10% to 20% of total crude oil consumption — with the remainder refined for fuel. A supply disruption would hit transport fuels first, but over time the effects would spread to plastics, packaging, fertilisers, synthetic fibres and food production.
Scientists are working to reduce this dependency through bio-based plastics, improved recycling and lower-emission fertiliser production. For now, however, the modern world remains deeply reliant on oil not only as an energy source but as the hidden foundation of everyday manufacturing and supply chains.
(Reuters)
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