Does exchange rate influece petrol price?

This paper tries to find a relationship between retail price of gasolin and Exchange rate of USD. For analysis uses monthly data for period of 1/2000-4/2012 for three states of European union: Czech republic, Hungary and Republic of Poland. Variables for this model are exchange rate of USD and domestic currency, crude oil price, average income and season. Even with problems, which models have, they assure about fundamental influence of crude oil on retail gasoline price and bring into discussion the influence od USD for small open economies, which are not able to influence the crude oil price by themself. According to results 1% change will cause 0,73% change in detail gasoline price for Czech, 0,72% change for Hungary and 0,13% for Poland. Furthermore the paper examines connection between exchange rate of EUR and gasoline prices in all countries, but fails to prove it