EnergyNorth Natural Gas, Inc.. The Company's principal activities are purchasing, transportation and sale of natural gas for residential, commercial and industrial use in New Hampshire. The Company is a wholly-owned subsidiary of Eastern Enterprises. The company provides utility gas services, sells appliances, and offers transportation service to its commercial and industrial customers. Transportation service allows a customer to purchase a natural gas supply directly from a third-party marketer. The company also distributes gas to its utility customers through a system of underground pipelines.