BP p.l.c. (LSE: BP, NYSE: BP) is a global oil and gas company headquartered in London, United Kingdom. It is the third-largest energy company and fourth-largest company in the world measured by revenues and one of the six oil and gas "supermajors". It is vertically-integrated and is active in every area of the oil and gas industry, including exploration and production, refining, distribution and marketing, petrochemicals, power generation and trading. It also has major renewable energy activities, including in biofuels, hydrogen, solar and wind power.

BP has operations in over 80 countries, produces around 3.8 million barrels of oil equivalent per day and has 22,400 service stations worldwide. Its largest division is BP America, which is the biggest producer of oil and gas in the United States and is headquartered in Houston, Texas. As at 31 December 2009 it had total proven commercial reserves of 18.3 billion barrels of oil equivalent. The name "BP" derives from the initials of one of the company's former legal names, British Petroleum.

BP's track record of corporate social responsibility has been mixed. The company has been involved in a number of major environmental and safety incidents and received criticism for its political influence.

Its primary listing is on the London Stock Exchange and it is a constituent of the FTSE 100 Index. It has a secondary listing on the New York Stock Exchange.

Source: Wikipedia