Petrol prices have hit the $2 a litre mark.
Petrol prices rose 3 cents a litre yesterday, taking increases since September to 22 cents a litre.
Greenstone, which operates Shell stations, was the first to increase prices, with others expected to follow.
The cheapest petrol, 91 octane, was at $1.95.9
Petrol hits $2 mark
File photo / NZ Herald
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