This one is tough to argue against, there is no question in my mind that China will continue to grow and prosper which will bode wwell for firms who sell China oil/ energy resources. Some have made the argument that Chinese GDP will slump after the 2008 Olympics. If this is the case it could offer a great buying opportunity. I think it is smart to invest into these companies on dip's in stock prices. I began buying PTR in 2004 and it has been a great stock for me