This paper determines the relationship between the crude oil price and the financial performance of International Oil Companies (IOCs) of the Eurozone during the last decade (from 2004 to 2013). This study is conducted around a multiple regression model with panel data with the financial performance ratios (ROA, ROE, Profit Margin) as dependent variables and the crude oil price as independent variables. A knowledge gap is visible since the crude oil price was never used as an independent variable in relation to the financial performance ratios of IOCs. In addition, the IOCs in the Eurozone have not been studied since most studies focuses on the United States and Asia. Moreover these studies focus on stock returns rather than financial performance. The research follows a quantitative approach by assessing the relationship of the crude oil price with financial performance of IOCS during the 10-year period (from 2004 to 2013) for 11 companies from 10 countries. The purpose of the study is to determine the effect of the crude oil prices on the financial performance of oil producer companies on a 10-year period using a multiple regression model with panel data. The research question therefore is:What is the relationship between the crude oil price and the International Oil Companies’ financial performance in the Eurozone during the last ten years (2004-2013)?The empirical results show that the crude oil price has a negative relationship with the financial ratios and that the crisis had an impact during that time period on the financial performance of the IOCs. It is also noted that the debt level and the size of IOCs have a strong relationship with their financial performance. The findings on the relationship between the crude oil price and the financial performance of IOCs are opposed to the results of Dayanandan & Donker study (2011). The findings of this research paper are relevant for investors and researchers looking to assess the performance of the Oil & Gas Industry so as its determinants.