Greenstone Energy, the company which operates Shell petrol stations, has dropped its prices by 3c a litre, citing a decline in the price of oil even though the New Zealand dollar has been weak.
The price of unleaded 91 has fallen to 172.9c a litre, the price of 95 has fallen to 179.9c a litre and the price of diesel has fallen to 115.9c, a spokesman said.