International and Domestic Petrol and Diesel Price Comparisons International and Domestic Petrol and Diesel Price Comparisons Data to the week ending Friday 21 September 2001. The three graphs below provide weekly average prices of crude oil, petrol and diesel.
Retail prices are less taxes and levies.
The Ministry, using the IEA Monthly Oil Market Report, verifies these prices. Singapore is a major refinery centre, considered to be operating at industry best practice levels, and is widely used as a benchmark for pricing in the Asia-Pacific region. The Singapore prices therefore provide a basis for comparison with the local retail petrol and diesel prices. Graphs 2 and 3 also include a provisional weekly importer margin for petrol and diesel, respectively. These margins are computed as the difference between the retail price in New Zealand and the Singapore spot price lagged by two weeks.