There's quite a lot of water to flow under the bridge
For the first time in over three months, New Zealanders encountered petrol priced below three dollars a litre — a quiet milestone born of a fragile US-Iran ceasefire that has begun to ease the pressures global conflict placed on oil markets. The 32-cent fall from March's peak arrived slowly, as relief so often does, trailing far behind the sharp pain that preceded it. Yet the path forward remains uncertain, shaped by the incomplete resumption of Middle East shipping, a weakening New Zealand dollar, and the question of whether the calm now holding will prove durable enough to reach ordinary lives at the pump.
- Petrol prices surged from $2.49 to $3.40 in a matter of weeks when conflict erupted in March, hitting household budgets and business costs with sudden, compounding force.
- The ceasefire has brought Brent crude back from US$120 to around US$72 a barrel, but shipping through the Strait of Hormuz remains at barely a third of pre-war volume — 40 vessels a day against a normal 100 to 125.
- The New Zealand dollar's 6% slide against the US dollar threatens to absorb much of the relief consumers might otherwise feel, with economists warning a further dip toward 55 cents could cancel out falling global oil prices.
- Economists see prices drifting toward the $2.80–$2.90 range in coming weeks, but only if shipping flows recover and the exchange rate holds — two conditions that are far from guaranteed.
- The Commerce Commission is watching fuel retailers closely, demanding that cost reductions reach consumers as swiftly as price increases did, and warning that surcharges must reflect genuine costs rather than expanded margins.
For the first time in more than three months, petrol in New Zealand dropped below three dollars a litre — a 32-cent fall from the $3.40 peak reached in late March. The milestone arrived quietly, the product of a fragile US-Iran ceasefire that has begun to ease pressure on global oil markets.
The price journey had been anything but quiet on the way up. When conflict broke out in early March, petrol sat at $2.49. Within days it had jumped 26 cents, and by late March a further 32-cent surge had pushed it to $3.40 — a shock that moved through household budgets and business costs across the country. The same 32-cent reversal has taken more than a month to materialise.
Westpac's chief economist Kelly Eckhold sees room for further relief, with prices potentially drifting toward the $2.80–$2.90 range as Singapore's refined fuel benchmarks ease. But he flagged a significant counterweight: the New Zealand dollar has fallen 6 percent against the US dollar since late February, now sitting at 56.40 cents. A further slide toward 55 cents, he warned, could substantially offset any gains from cheaper global oil.
The deeper constraint lies in the Middle East itself. Shipping through the Strait of Hormuz — the critical artery for global oil flows — has barely resumed. Before the conflict, 100 to 125 vessels transited daily; in the best week since the ceasefire, that figure reached only 40. Eckhold was direct: pre-war pricing would require sustained shipping flows at pre-war levels, and the region remained too fragile for that to be assumed.
The Commerce Commission has begun pressing fuel retailers to pass cost reductions through to consumers with the same speed that increases were applied. Commissioner Bryan Chapple made clear the watchdog would monitor weekly and would call out any behaviour suggesting margins were being protected at consumers' expense. Brent crude, trading around US$72 a barrel — well below its wartime peak of US$120 but still above pre-conflict levels — leaves the question open: whether the ceasefire's calm will fully reach the forecourt, or whether currency weakness and slow shipping will keep prices higher than the headline suggests.
For the first time in more than three months, New Zealanders pulled up to the pump and saw petrol priced below three dollars a litre. The milestone arrived quietly, almost apologetically—a 32-cent drop from the peak of $3.40 that had been reached in late March, but one that took more than a month to materialize. The fragile ceasefire between the US and Iran, holding so far, had begun to ease the pressure on global oil markets that had sent prices spiraling upward in the weeks following the outbreak of conflict.
The journey to this point had been sharp and jagged. In early March, when the war began, petrol sat at a modest $2.49 a litre. Within three days it had jumped 14 cents. Three days after that came another 12-cent spike to $2.76. Then, in a compressed eight-day window between March 19 and 27, the price rocketed another 32 cents to reach $3.40—a shock that rippled through household budgets and business operating costs across the country. The reversal, by contrast, has been glacial. That same 32-cent fall has taken more than a month to work through the system, landing at $2.99 today.
Westpac's chief economist Kelly Eckhold suggested there was room for further relief. He expected prices to drift toward the $2.80 to $2.90 range in the coming weeks, tracking the refined fuel benchmarks being set in Singapore. But he offered a crucial caveat: the New Zealand dollar had weakened significantly against the US currency, falling 6 percent from 60 cents in late February to 56.40 cents today. That erosion in the exchange rate could easily swallow the gains consumers might otherwise see at the pump. If the kiwi slipped further toward 55 cents, Eckhold warned, it would substantially offset any benefit from falling global oil prices.
The deeper constraint, however, lay in the Middle East itself. Shipping through the Strait of Hormuz—the critical chokepoint for global oil flows—had barely resumed. Before the conflict, between 100 and 125 vessels transited the strait daily. In the best week since the ceasefire took hold, that number had climbed only to 40. Eckhold was blunt about what this meant: there was still a long way to go before New Zealand could expect to see pre-war pricing. Sustained shipping flows at pre-war levels would be necessary before that happened, and the region remained fragile enough that such stability was far from guaranteed.
The Commerce Commission, meanwhile, had begun applying pressure to fuel retailers. The watchdog acknowledged that price increases during the conflict had been justified by the volatility and elevation in global wholesale costs. But now that stability was returning, the commission expected to see those cost reductions passed through to consumers with the same speed that increases had been. Commissioner Bryan Chapple made the expectation explicit: the commission would be monitoring weekly, and it would call out any behaviour that raised concerns. Retailers were also reminded that fuel surcharges and adjustment factors must reflect only the genuine additional costs they were facing, not serve as a buffer for margin expansion.
Brent crude, the international benchmark, was trading around US$72 a barrel—slightly above pre-war levels but a dramatic retreat from the US$120 it had touched during the height of the conflict. The question now was whether that moderation would translate into sustained relief for New Zealand consumers, or whether currency weakness and the slow resumption of shipping would conspire to keep prices elevated. The ceasefire was holding, but the full benefits of that stability had not yet reached the forecourt.
Citas Notables
We expect further falls in petrol prices in the next few weeks, probably toward the $2.80 to $2.90 range, though the exchange rate weakness could significantly mitigate those gains.— Kelly Eckhold, Westpac chief economist
Now that we're seeing stability in the region, we expect lower imported fuel costs and we want to see that reflected in the prices consumers are paying.— Bryan Chapple, Commerce Commission
La Conversación del Hearth Otra perspectiva de la historia
Why did the price fall so slowly compared to how quickly it rose?
The markets react differently to fear than to relief. When conflict erupts, traders immediately price in worst-case scenarios—supply disruptions, shipping closures, geopolitical uncertainty. That fear is instant. But when things stabilize, the market has to actually see evidence of normalcy returning. Shipping flows are still only at 40 vessels a day when they should be at 100-plus. The market doesn't trust the ceasefire yet.
So the Commerce Commission is essentially saying fuel companies can't pocket the difference?
Exactly. The commission is saying: you raised prices when costs went up, and we accepted that. Now costs are coming down. We expect to see that reflected at the pump in the same way. If retailers sit on the savings, the commission will notice and will act.
What's the exchange rate doing to all this?
It's a hidden tax on the benefit. Even if global oil prices fall, if the kiwi weakens against the US dollar—which it has, by 6 percent—then importing fuel costs more in local currency. A retailer might be buying cheaper oil, but paying more to convert the US dollars to buy it. That eats into the savings.
Could the ceasefire collapse?
That's the unspoken anxiety underneath all of this. Eckhold said there's "quite a lot of water to flow under the bridge." The shipping numbers tell you everything. If the ceasefire breaks, those 40 vessels a day could drop to near zero again, and prices would spike immediately.
What would pre-war pricing actually look like?
Eckhold thinks we're still "a far way away" from it. Pre-war was around $2.49. We're at $2.99 now, and he's expecting maybe $2.80 to $2.90 as the best case. That's still 30-40 cents above where we started. To get back to true pre-war pricing, you'd need sustained, confident shipping flows and a stronger currency. Neither is guaranteed.