Eni presents the second volume of the World Oil and Gas Review, the global statistics report on the reserves, production and consumption of oil and natural gas, now in its sixteenth edition. Some of the most important facts shown by the report are that, in 2016, global gas reserves increased by 0.9 percent, with the United States in the lead, followed by Nigeria and Iraq, while, at the end of 2016, installed capacity of solar and wind represented approximately 40 percent of all renewable installed capacity. This second volume follows on from the July publication dedicated to the oil market, and provides data and statistics on natural gas, biofuels and, for the first time, renewables (wind and solar power), all of which are considered key energy sources for the transition towards a low carbon future. The data shows, among other things, that Russia ranks once again as the country with the world's largest natural gas reserves (holding 25 percent of global reserves), and that among the top ten countries by natural gas reserves, six are OPEC members, holding 32 percent of global reserves. These are just some of the most significant facts shown by this detailed and in-depth review of the global energy context.