Enbrige Inc. (TSX: ENB NYSE: ENB) is a Calgary, Alberta based company which is focused on three core businesses: crude oil and liquids pipelines, natural gas pipelines, and natural gas distribution. The company has approximately 5,400 employees, mostly in Canada, the U.S. and South America. The company was initially incorporated as Interprovincial Pipe Line (IPL) in 1949, shortly after Canada's first major oil discovery at Leduc, Alberta. The original pipeline was constructed to transport oil from Western Canada to refineries in the east. IPL became Enbridge Pipelines in 1998. The Enbridge name is a portmanteau for "energy" and "bridge".