Petrol prices up

New Zealand's major oil companies have increased their petrol and diesel prices by 3c and 2c a litre respectively.

BP, Mobil and Shell confirmed the price rise, with unleaded 91 octane increasing from 172.9c to 175.9c, and diesel increasing from 115.9c to 117.9c.

The companies said the change was due to an increase in the cost of international product.

Caltex could not be reached for immediate comment.

Gull said it was not increasing its prices.

- NZPA