The 2013 OECD Inventory of Estimated Budgetary Support and Tax Expenditures for Fossil Fuels identifies and estimates direct budgetary transfers and tax expenditures relating to fossil fuel production and consumption. For each of the 34 OECD countries, the Inventory provides a summary of its energy economy, budgetary and tax-related measures provided at the central-government level (and selected sub-national units of government) relating to fossil-fuel production or consumption.  The inventory is available on the OECD website.