New Zealand petrol prices could drop to $2.50 per litre if the US-Iran ceasefire holds, according to AA Principal Policy Adviser Terry Collins. The interim deal has already driven international oil prices down from US$114 a barrel in May to US$72 in August, lowering local 91 petrol averages to approximately $3.
Why are international oil prices dropping?
The downward trend stems from an interim deal between the US and Iran intended to end hostilities. This agreement follows the closure of the Strait of Hormuz, a critical maritime passage through which one-fifth of the world’s oil was shipped prior to the conflict.

Terry Collins told Breakfast that the market is currently in the middle of a “downward curve.” He noted that the drop in international costs has directly influenced New Zealand pump prices. However, he warned that the situation remains fragile due to several unresolved factors.
Current market uncertainties include damaged refineries and the fact that many ships have not yet cleared the Strait of Hormuz. Collins stated that while he sees “sunshine on the horizon,” any breakdown in the ceasefire could impact prices immediately.
How low could New Zealand petrol prices fall?
While 91 petrol is currently averaging around $3, Collins expects further relief during promotional periods. He anticipates that fuel on special days could reach as low as $2.50 per litre in the coming months.
The potential for these lower prices depends on the stability of the US-Iran agreement. Collins previously estimated prices could hit $2.80, but recent shifts in the oil market have led him to suggest that $2.50 is achievable on discount days.
The AA suggests that consumer behavior plays a role in these price movements. Collins advised motorists to actively “hunt down” cheap prices, noting that seeking out discounts puts downward pressure on fuel companies to keep prices low.
Why do fuel prices vary between regions?
Motorists may notice significant price differences depending on where they live. Collins reported “big variations” across different parts of the country, noting that regional discrepancies are common.
These price gaps can be substantial. According to the AA, variations between regions—and even within them—can result in a difference of 40 to 50 cents per litre when filling a 50L tank.
Because of these fluctuations, checking local prices before heading to the station is essential for managing fuel costs effectively.
Frequently Asked Questions
What is causing petrol prices to decrease?
An interim ceasefire deal between the US and Iran has helped stabilize the Strait of Hormuz, leading to a significant drop in international oil prices.
How much could petrol cost on special days?
AA Principal Policy Adviser Terry Collins suggests fuel prices on special days could drop to as low as $2.50 per litre.
What are the best days to buy cheap fuel?
Tuesdays and Thursdays are often the best days to find fuel discounts.
Why are oil prices so volatile?
Prices are affected by geopolitical stability in the Middle East, refinery capacity, and the movement of ships through the Strait of Hormuz.
How much difference can there be in regional fuel prices?
Price variations between regions can be as high as 40 to 50 cents per litre for a 50L tank.
What do you think about recent fuel price changes? Let us know in the comments below, or subscribe to our newsletter for more consumer updates.
