AltaGas Income Trust (AltaGas) is an open-ended investment trust. The company is engaged in extraction, transmission, distribution and storage of natural gas through its subsidiaries. It is also involved in the generation of power utilizing diverse fuels. AltaGas generates power through various resources such as wind, run-of-river hydro, geothermal and gas-fired generation plants. The company operates principally through three key business segments, namely, Gas, Power and Corporate. AltaGas is the sole shareholder of AltaGas General Partner Inc. The company operates in Canada and Northern United States. In July 2010, the company changed its name to AltaGas Ltd. AltaGas is headquartered in Calgary at Alberta, Canada.