Public budgets are the instruments that governments use to set their priorities. Over the past decade an important global movement has emerged to give citizens and civil society a voice in budget issues. A key part of budget work is monitoring revenues from the extraction and sale of gas, oil, and minerals. In April 2004, the Open Society Institute, the International Budget Project, and the Center for Policy Studies at Central European University brought together civil society leaders working on these issues to determine how the best practices from budget work can be applied to the challenge of monitoring extractive industry revenues. This report summarizes their views and recommendations. [Includes case studies from 12 countries]