The thesis examines how natural resources affect internal armed conflict onset through a quantitative analysis of data on 167 countries covering the period 1950-2003. Previous research on the relationship between natural resources and armed conflict has often not focused thoroughly on explanations. This thesis seeks to rectify this by focusing on classifying natural resources, and by focusing on the purported mechanisms that are argued to link natural resources and armed conflict onset, namely those focusing on the state, and those focusing on rebels and their motivations and opportunities. This is done through a random-effects panel data model, as well as a novel hybrid approach" combining some of the previously aspects of the previous dom...