The aim of this study is to analyze how oil price shocks affect the economic growth of floating exchange rate regimes and fixed exchange rate regimes in oil-exporting countries with a ratio of oil exports to total exports exceeding 70%. Also, this study seeks to determine what monetary and fiscal policies both regimes apply in order to curb business cycles and reduce inflationary and recessionary gaps. The analytical study uses panel data for the period from 1991 to 2019, covering 24 oil-exporting countries, from the World Economic Outlook (WEO) database and World Bank. The econometric model is estimated by applying a panel VECM to examine the short- and long-term interdependencies in the macroeconomic variables. The results demonstrate that when there is a negative shock to the oil price, the exchange rate of the floating exchange rate regimes depreciates, money supply increases, and government spending decreases. In contrast, the exchange rate of the fixed exchange rate regimes fluctuates slightly; the money supply slightly decreases in the near, medium, and long term; and government spending decreases.