AltaGas Ltd. engages in the generation and distribution of electricity. It operates through the following segments: Gas, Power and Utilities. The Gas segment business gathers, processes, transports, stores and markets natural gas and natural gas liquids. The Power segment consists of operating conventional and renewable power including wind, run-of-river hydro and biomass. The Utilities segment involves the ownership of regulated natural gas distribution and storage utilities. The company was founded by David Wallace Cornhill in 1993 and is headquartered in Calgary, Canada.