This study aims to know the extent of the effects of the US dollar exchange rate on world oil prices, this was done through a standard study in which we used the auto regression methodology for the distributed time gaps applied to annual time series the exchange rate of the us dollar against the euro and changes in oil prices from 2000 to 2018.The study found a long-term inverse relationship between the US dollar exchange rate and oil prices, Which means that oil prices in international markets are affected in the long run by exchange rate changes, and since this relationship is inverse and significant, in the long run, oil prices rise in international markets during periods in which the value of the US dollar falls against the euro, and for the short run, there is an inverse and non-significant relationship between the variables.