Shell dropped the price of diesel by 6 cents per litre today.
Gull has also dropped its diesel price.
The price of petrol remained unchanged.
Shell said there continued to be a lot of instability in the New Zealand dollar, but the diesel refined price had fallen enough
to allow a 6c decrease at the pump effective from 3.30pm today.
Diesel at the majority of Shell outlets is now priced at 141.9c a litre, while petrol is 189.9c a litre for 91 octane and 194.9c a litre for 95 octane.
At Gull sites diesel was selling for 140.9c a litre, while one site was selling the fuel at 139.9c, said the company's general manager, Dave Bodger.
The price of diesel has dropped 44 cents a litre since July 8 and the last diesel price decrease was 6c on October 1.
None of the other major oil companies could be immediately reached to find out whether they would also drop the price.
- NZPA