The activities of multinational oil companies in Nigeria have remained a source of controversy over the years. The study examined the impact of multinational oil companies in the economic growth of Nigeria (1960-2010). Hence, the specific objective is to ascertain the extent of economic growth impacted by the multinational oil companies in Nigeria. The study adopted a survey design. Data were obtained through secondary sources. The findings revealed that the extent of economic growth impacted by the multinational oil companies in Nigeria was significant based on the Ordinary Least Square (OLS) regression analysis result where the calculated F-statistics of 212.1293 is greater than the tabulated F-statistics of (5.35147). The study found that extent of oil contribution to economic growth in Nigeria was significant.