Brazil is second only to Australia as a producer of natural resources and leads the world in biofuel production. It is fully self sufficient of petroleum-producing regions such as the Middle East and produces all its own fuel from sugar cane. Billions of dollars continue to be pumped into the ethanol sector, where Brazil's experience and technical expertise is an important advantage. Record commodity prices make its natural resources, which include oil, soya beans and the world´s biggest iron ore mine, more valuable than ever. As world demand grows, in the first 11 months of 2007 Brazil attracted $3bn into its mining sector, almost six times as much as in 2006. More than 85% of Brazil´s energy comes from renewable sources, mostly hydro-electrical isolating Brazil from international energy shocks. Brazil is home to more than one third of the world's fresh water reserves.