March 13, 2026

#economy: Commerce Commission Tightens Monitoring of Fuel Companies as Global Prices Rise

Matthew Tukaki Posted On March 13, 2026

The Commerce Commission says it is increasing its scrutiny of fuel companies as global oil market volatility places growing pressure on petrol and diesel prices in Aotearoa.

The regulator says it will closely monitor pump prices and market behaviour to ensure fuel retailers are responding appropriately to changes in international fuel costs. Officials say the move comes amid rising and more volatile global oil prices, which are expected to influence fuel costs for New Zealand consumers.

The commission already collects and analyses fuel pricing data across the country as part of its ongoing monitoring of the retail fuel market. The additional scrutiny is aimed at identifying whether price changes at the pump accurately reflect shifts in wholesale fuel costs and other market factors.

Authorities say the monitoring programme allows the commission to identify unusual pricing patterns and question companies if changes appear inconsistent with underlying costs. This includes examining regional price differences and how quickly fuel companies adjust their retail prices when international oil prices rise or fall.

The commission says ensuring transparency in the fuel market is important for maintaining competition and protecting consumers. It notes that higher global oil prices and geopolitical tensions can create sudden fluctuations in the cost of fuel imports, which ultimately influence prices at service stations.

Fuel costs are a major driver of transport and living expenses for households and businesses across the country, meaning changes in the market can have wider economic impacts.

The regulator says it will continue closely analysing pricing data and will not hesitate to investigate if evidence suggests companies are not complying with competition or consumer laws.

Officials say the goal is to ensure New Zealanders can have confidence that fuel prices reflect genuine market conditions rather than unfair or anti-competitive behaviour.