This database refers to the OECD Inventory of Support Measures for Fossil Fuels, taking stock of almost 800 spending programmes and tax breaks used by governments in 36 OECD countries and 6 key emerging G20 economies (Brazil, China, India, Indonesia, Russia and South Africa) to encourage the consumption or production of fossil fuels. These include measures that reduce prices for consumers, as well as those that lower exploration and exploitation costs for oil and gas companies.