World's 10 Most Valuable Companies

ExxonMobil

ExxonMobil is the largest of the six oil super majors with daily production of 3.921 million BOE (barrels of oil equivalent). In 2008, this was approximately 3 percent of world production, which is less than several of the largest state-owned petroleum companies. When ranked by oil and gas reserves it is 14th in the world with less than 1 percent of the total. It is one of the largest publicly traded companies by market capitalization in the world and is the largest company in the world by revenue. The company is ranked 1 globally in Forbes Global 2000 list in 2012. Exxon Mobil's reserves were 72 billion oil-equivalent barrels at the end of 2007 and, at then (2007) rates of production are expected to last over 14 years.

PetroChina

PetroChina is the most profitable company in Asia, but this success may be the result of corporate management, but can also be attributed to the near duopoly on the wholesale and retail business of oil products it shares with Sinopec in China. It is China's biggest oil producer. Traded in Hong Kong and New York, the mainland enterprise announced its plans to issue stock in Shanghai in November 2007 and subsequently entered trading on the Shanghai index.

Industrial and Commercial Bank of China (ICBC)

Industrial and Commercial Bank of China (ICBC) is the largest bank in the world by profit and market capitalization. It is one of China's 'Big Four' state-owned commercial banks (the other three being the Bank of China, Agricultural Bank of China, and China Construction Bank). It was founded as a limited company on January 1, 1984. As of March 2010, it had assets of RMB 12.55 trillion ($1.9 trillion), with over 18,000 outlets including 106 overseas branches and agents globally.  In 2011, it ranked number 7 on Forbes Global 2000 list of world’s biggest public companies^.