BG Group plc (LSE: BG.) is a global oil and gas company headquartered in Thames Valley Park at Reading in Berkshire in the United Kingdom. It has operations in 25 countries across Africa, Asia, Australasia, Europe, North America and South America and produces around 680,000 barrels of oil equivalent per day. It has a major Liquefied Natural Gas (LNG) business and is the largest supplier of LNG to the United States. As at 31 December 2009 it had total proven commercial reserves of 2.6 billion barrels of oil equivalent.
It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.