The Montreal Light, Heat and Power Company (MLH&P) was a utility company operating the electric and gas distribution monopoly in the area of Montreal, Quebec, Canada, until its nationalization by the government of Quebec in 1944, under a law creating the Quebec Hydroelectric Commission, also known as Hydro-Québec. Hydro-Québec ran both of MLH&P's electric and gas operations until 1957, when its gas properties were sold to the Corporation de gaz naturel du Québec, known today as Énergir.