http://www.abc.net.au/rural/news/content/2006/s1734328.htm
http://www.bloomberg.com/markets/commodities/energyprices.html
http://www.advfn.com/p.php?pid=commodities&cc=TH&refredir=1&nopu=VVmYTJJUaOehTGQhlEp7%2FetqcH0IoRQKz9eX9q8IQM60%2BiiNYEI6lw%3D%3D