This book describes the energy-law situation in Brazil. It focuses on three specific energy sectors: oil, natural gas and biofuel. The decision to concentrate on these areas takes into account the role that these energy sectors play in the economic, political and legal systems in Brazil, as well as the fact that they are the primary subjects of current discussions surrounding economic regulation in the country. The book, composed of thematic chapters authored by specialized legal researchers, analyzes the different aspects of the oil, gas and biofuels industry, starting with an introduction and technical points and followed by a discussion of the legal issues. It also considers the different legal areas used to examine the aforementioned energy sectors, such as regulatory law, environmental law, tax law, international law, among others. The book will serve as a valuable guide for researchers interested in understanding Brazilian energy law, and at the same time it presents the state of the art of studies carried out in Brazil.  .