AltaGas Ltd. (ALTGF) operates as a diversified energy infrastructure company focused on the acquisition, growth, and optimization of midstream, utilities, and power assets across North America. The company provides a range of natural gas transportation and storage services; natural gas liquids (NGL) processing and fractionation; natural gas utilities distribution; renewable power generation, including hydroelectric, wind, solar, and battery storage facilities; and electricity retailing services. It also engages in energy marketing and wholesale trading activities. AltaGas serves utilities, industrial customers, commercial entities, and retail consumers through its operations in Canada and the United States.
Founded in 1994 and headquartered in Calgary, Alberta, Canada, AltaGas conducts its business primarily in Western Canada and the U.S. Pacific Northwest, with key segments in Midstream; Utilities; and Power. The Midstream segment handles gas processing, transportation, storage, and NGL extraction and marketing; the Utilities segment delivers regulated natural gas distribution services; and the Power segment generates renewable energy from facilities totaling approximately 1.5 gigawatts capacity, while offering electricity retail solutions.
In recent developments, AltaGas completed the sale of its U.S. natural gas storage business to Stonepeak for CAD 1.1 billion in early 2024, enabling a sharper focus on core growth areas like natural gas liquids expansion and renewable power. The company secured a significant 15-year power purchase agreement with BC Hydro in 2024 for 320 megawatts of incremental clean power from its existing British Columbia hydroelectric assets, supporting regional energy transition goals. Additionally, AltaGas announced expansions in its Ridley Island Propane Export Terminal in 2025, enhancing export capacity to meet growing international demand, and continued strategic investments in utility infrastructure amid favorable regulatory environments.