| AltaGas Utility Group, Inc.|AltaGas Utility Holdings (Nova Scotia) Inc. owns 100% percent
Woodlawn (Russell Lake West)
North End Halifax
South End Halifax
West End Halifax
Halifax International Airport
New Glasgow 
Heritage Gas Wikipedia
Heritage Gas Limited is a company based in Dartmouth Nova Scotia that provides natural gas distribution.
The company receives gas from the Maritimes and Northeast Pipeline system and is regulated under the Utility and Review Board of Nova Scotia.
It currently operates systems in Halifax Regional Municipality, Guysborough County, Cumberland County .Colchester County, Hants County and Pictou County.