Iran Crisis Exposes Modern Zealand’s Fuel Vulnerability: A Looming Energy Security Challenge
The recent escalation of conflict involving Iran and the effective closure of the Strait of Hormuz have sent shockwaves through global energy markets, with oil prices surging past US$100 a barrel. In New Zealand, this translates to petrol hitting NZ$3 a litre, and reports of stations running dry. This isn’t just a problem; it’s a stark reminder of New Zealand’s strategic vulnerability to disruptions in global oil supply.
The Strait of Hormuz: A Critical Chokepoint
The Strait of Hormuz, separating the Arabian Peninsula and Iran, is one of the world’s most important oil transit routes. Approximately 20 million barrels of crude oil and oil products were shipped through the Strait daily in 2025, representing around 25% of the world’s seaborne oil trade. Any disruption, as we’re currently witnessing, has huge consequences for global oil markets.
New Zealand’s Reliance on Imported Fuel
Since the closure of the Marsden Point refinery in 2022, New Zealand has become entirely reliant on imported refined fuel, primarily from South Korea and Singapore. These refineries, in turn, depend on crude oil transiting the now-blocked Strait of Hormuz. Official fuel stock updates indicate roughly 52 days of total cover, with less than 33 days of petrol reserves – a buffer designed for short disruptions, not prolonged crises.
The IEA Response and Market Concerns
In response to approximately 20 percent of the world’s oil supply being cut off, the International Energy Agency (IEA) announced its largest-ever coordinated reserve release of 400 million barrels. However, analysts warn that oil prices could reach US$150 a barrel if the Strait remains closed. The IEA is also in discussions with major producers like Canada, Mexico, Brazil, and Norway to increase supply, but these measures may not fully offset the loss of Middle Eastern output.
The Failed Transition: Electrification and Transport
Despite New Zealand generating over 85 percent of its electricity from renewable sources, transport remains overwhelmingly dependent on imported oil, consuming nearly 40 percent of all energy in the country. Electricity currently provides only 0.5 percent of domestic transport energy. This situation is largely attributed to the cancellation of initiatives designed to promote electric vehicle (EV) adoption.
The Rise and Fall of the Clean Car Discount
The Clean Car Discount scheme, which ran from 2021 until the finish of 2023, provided rebates for cleaner vehicles, resulting in 192,000 rebates issued. While imperfect, the scheme drove significant growth in EV fleet numbers, exceeding 50 percent per year. However, when the current government ended the scheme, EV growth plummeted to under 10 percent. The government is now considering scrapping the Clean Car Standard, the remaining incentive for importing lower-emission vehicles.
Beyond EVs: Undermining Sustainable Transport
The shift away from sustainable transport extends beyond EVs. Funding for Auckland’s under-25 and children’s fares on public transport was withdrawn, and the Transport Choices program – which funded walking, cycling, and bus improvements – was frozen and effectively cancelled. Planned light rail projects for Auckland were also cancelled, and walking and cycling components were stripped from harbour crossing plans, prioritizing car lanes instead.
Unsustainable Infrastructure Spending
Current infrastructure spending heavily favors highway construction. Seventeen mega-highway projects, known as the Roads of National Significance, carry an estimated cost of between $44 billion and $56 billion, a figure that continues to rise. Treasury has warned that the National Land Transport Fund can cover just under half of the overall projected $120 billion investment pipeline. The Infrastructure Commission recently called the program unaffordable.
A Recurring Crisis: The Need for Strategic Independence
Oil shocks are a recurring feature of the global energy landscape. New Zealand has repeatedly failed to use these crises as opportunities to reduce its reliance on imported oil. With one of the highest rates of vehicle ownership globally (815 light vehicles per 1,000 people), and road transport emissions having grown 82 percent since 1990, the country remains highly vulnerable.
The Path Forward: Prioritizing Energy Security
New Zealand possesses the potential to power a diverse transport system with renewable electricity. Every investment in buses, cycleways, and trains reduces reliance on imported oil and enhances energy security. The question now is whether New Zealanders will recognize car dependence as a strategic liability and prioritize sustainable alternatives.
Did you know?
The Strait of Hormuz is at its narrowest point only 29 nautical miles wide, with navigable channels just 2 miles wide.
Pro Tip
Consider exploring options for reducing your personal fuel consumption, such as carpooling, public transport, cycling, or walking, to mitigate the impact of rising fuel prices.
FAQ
Q: How much oil transits the Strait of Hormuz?
A: Approximately 20 million barrels per day, representing around 25% of the world’s seaborne oil trade.
Q: How long can New Zealand’s current fuel stocks last?
A: Roughly 52 days of total cover, with less than 33 days of petrol reserves.
Q: What was the Clean Car Discount?
A: A scheme that provided rebates for purchasing cleaner vehicles, but was cancelled at the end of 2023.
Q: What is the IEA doing to address the crisis?
A: The IEA has released 400 million barrels of oil from emergency reserves and is discussing increased supply with other producers.
Q: What can be done to improve New Zealand’s energy security?
A: Investing in sustainable transport options like public transport, cycling infrastructure, and electric vehicles, and reducing reliance on imported oil.
Want to learn more about New Zealand’s energy future? Explore the Ministry of Business, Innovation and Employment’s energy resources.
