To predict economic success and failure, academics and policymakers alike are interested in the differences in institutional structures across natural resource-based economies. This paper uses a political economy framework to examine the effect of institutional variables on per capita Gross-Domestic-Product in resource-rich economies. After controlling for institutions, natural resource rents cease to have a negative impact on long-term growth. Institutions in resource-based economies foster economic growth when voice and accountability are in place, broad-based rule of law is enforced with secure property rights, and control of corruption, and when government effectiveness, regulatory quality, and political stability are positively perceived.