PetroChina = Worlds Largest Compnay. Marx Exuberant.

After Surge, PetroChina Stumbles in NY - Business on The Huffington Post: "Hours after PetroChina shares almost tripled in value on their first day of trading in Shanghai, they slumped 13 percent in New York after a big investment bank said the stock was overvalued. China's biggest oil and gas company _ the publicly listed unit of state-owned China National Petroleum Corp. _ became the world's first company with a $1 trillion market capitalization after its shares debuted Monday in its homeland."