Why our car dependence is now a strategic liability
Timothy Welch, Senior Lecturer in Urban Planning, University of Auckland, Waipapa Taumata Rau The war in Iran and the effective closure of the Strait of Hormuz have sent oil prices past US$100 a barrel – and Kiwis flocking to fill up. Petrol just hit NZ$3 a litre and some stations have reported running dry. In response to about 20% of the world’s oil supply being shut off in just a few days, the International Energy Agency announced its largest-ever coordinated reserve release of 400 million barrels. But analysts warn oil could reach US$150 a barrel if the strait stays closed. For a country that imports every drop of its petrol, diesel and jet fuel, this is not only a problem, it’s a hard reminder New Zealand has failed to mitigate such strategic vulnerability. Since Marsden Point stopped refining oil in 2022, New Zealand has imported all its refined fuel, mostly from South Korea and Singapore. Those refineries rely on crude oil shipped through the waters now blocked by Iranian drones. The latest official fuel stocks update suggests roughly 52 days of total cover, with less than 33 days of petrol in the country. This buffer was only designed to smooth over short disruptions, not substitute for a prolonged supply crisis. Motorists are already starting to hoard supplies, with petrol stations in Auckland already selling out of fuel cans. Some drivers may well be regretting not having bought an electric vehicle earlier. Failure to electrify New Zealand generates more than 85% of its electricity from renewable sources – rising to a record 96.4% in the last quarter of 2025. It has one of the cleanest and most oil-independent electricity systems in the world. Yet transport, which consumes nearly 40% of all energy in the country, remains almost entirely chained to imported oil. Electricity provides just 0.5% of domestic transport energy. It didn’t have to be […]
