Royal Dutch Shell plc (LSE: RDSA, LSE: RDSB), commonly known as Shell, is a global oil and gas company headquartered in The Hague, Netherlands and with its registered office at the Shell Centre in London, United Kingdom. It is the largest energy company and the second-largest company in the world measured by revenues and is 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.

It has operations in over 90 countries, produces around 3.1 million barrels of oil equivalent per day and has 44,000 service stations worldwide. Shell Oil Company, its subsidiary in the United States, is one of its largest businesses.

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

Source: Wikipedia