The upstream oil and gas sector in Brazil has suffered several changes since the first edition of Brazilian Upstream Law and Gas. These changes relate, among others, to the introduction of a production sharing regime, local content challenges and new regulations for unconventional operations. This new edition will include fully updated versions of all of the chapters covered in the first edition (including but not limited to the key elements of the Brazilian upstream legal framework, general Brazilian law, the regulatory entities and other players in the upstream sector, the petroleum legal regime, decommissioning challenges and project finance opportunities), but will also cover the regulatory changes for pre-salt and strategic areas, unconventional operations, local content challenges and other relevant topics. The chapters are written by highly respected Brazilian professionals, including experts from Mattos Filho, Pinheiro Neto, Machado Meyer Sendacz e Opice Advogados, Vieira Rezende, Merrill Lynch, Campos Mello Advogados and Ernst & Young (now known as EY). Their insights offer reliable guidance for international investors, as well as the lawyers assisting them, when they are required to consider potential investments in Brazil. Such insights will be particularly useful for those who are not yet familiar with the country's legal system.