Monitoring and focus reports
The Commission produces quarterly monitoring reports, which monitor the performance of engine fuel markets in New Zealand under the Fuel Industry Act 2020.
These reports are based on the Commission’s analysis of the information disclosures (ID) provided by fuel companies each quarter, and provide snapshots of the competitive performance of engine fuel markets in New Zealand.
Over time, the Commission expects to build a more robust picture of their performance as more data becomes available under ID.
Fuel price monitoring – Middle East conflict
The Commission is publishing regular fuel price monitoring reports in response to the conflict in the Middle East and the impact on global fuel prices.
19 March 2026 update: Our latest analysis (to 18 March) shows that while retail prices are still rising, retailers do not appear to be increasing prices faster than their costs. Refined fuel costs have stabilised at elevated levels, and national retail prices have continued to climb by around 55 c per litre for petrol and 90 c per litre for diesel since the start of the Iran conflict. Overall, the steady pace of these increases suggests that at a national level, fuel retailers are not overreacting to spikes in costs.
Quarterly monitoring reports
The Fuel Quarterly Monitoring Reports have been available since November 2022. In that time, the Commission has built the foundation of a solid data base that continues to grow. From mid-2024 the Fuel Quarterly Monitoring Reports will look different to what has been produced to date. Specifically, these reports will no longer include high level commentary, and will not focus on specific issues. This will enable the Commission to deliver more timely monitoring reports. This will also allow the Commission to work on other analysis and produce more Focus Reports. We will continue to monitor trends in the ID data, and will use this to inform and prioritise further analysis as it comes to hand.
Older reports
Reports older than the previous calendar year.
Focus reports
In addition to the quarterly reporting, the Commission occasionally publishes focus reports that supplement the analysis of quarterly information disclosure data.