Like any business we have to take into account the cost of our fuel when setting our prices. We track the international price of refined oil products on a daily basis. These prices are quoted by brokers in US $ per tonne. An industry standard tonnes-to-litres conversion factor is used to convert to litres and the current €/US $ rate of exchange is applied to arrive at cost per litre. If the price is CIF it includes carriage insurance and freight and is effectively a price landed at a post in Ireland.
In addition a cost for Port duties and storing it in the importing terminal together with transport to the service station and a retail margin make up the balance of the fuel cost excluding taxes and duties.