A weaker New Zealand dollar and increases in the international cost of refined petrol has been blamed for the latest price rises.
BP was the first to increase the price of petrol on Tuesday by 6 cents a litre and diesel by 3c.
Caltex and Mobil have followed suit.
Unleaded 91 is now $1.68.9 cents a litre and diesel is $1.06.9 a litre.
BP's spokesperson Diana Stretch says the increase is due to continued increases in the cost of refined petrol and diesel and the weaker New Zealand dollar.
Ms Stretch says prices are still well below the highs of 2008, when unleaded 91 was as much as $2.18.9c a litre.
The New Zealand dollar dropped to below 50 US cents on Monday night for the first time in six years.
