This CD-ROM contains key energy statistics for over 150 countries and regions. Data are provided in original units for the different types of coal, oil, natural gas, renewables and waste, as well as for electricity and heat. In general, the data are available for 1971 (1960 for OECD countries) to 2015, with preliminary 2016 estimates of all supply flows (OECD) and of production and trade of natural gas, primary coal and oil (non-OECD). Definitions of products and flows and explanatory notes on the individual country data are also included. In the 2017 edition of World Energy Balances, data are prosented as comprehensive energy balances expressed in energy units.