Utilities

AltaGas owns and operates utility assets that store and deliver natural gas to more than 1.8 million customers1 in Alberta, British Columbia, Nova Scotia, the District of Columbia, Maryland, Virginia, Michigan and Alaska. AltaGas also owns a one-third equity interest in Inuvik Gas Ltd. that delivers natural gas to customers in Inuvik, Northwest Territories and a 65 per cent interest in Cook Inlet Natural Gas Storage Alaska LLC in Alaska.

ENSTAR

ENSTAR Natural Gas Company2 is a regulated public utility that delivers natural gas to approximately 143,000 residential, commercial, and industrial customers in and around the Anchorage and Cook Inlet area. 

SEMCO

Headquartered in Port Huron, Michigan, SEMCO2 is a regulated public utility that delivers natural gas to approximately 300,000 residential, commercial, and industrial customers in service territories in the southern half of the state's Lower Peninsula.

AUI

AUI is a public utility distributing natural gas to over 78,000 residential, rural and commercial customers in over 90 communities across Alberta.

Heritage Gas

Based in Nova Scotia, Heritage Gas provides a fully regulated natural gas distribution services to its customers.

PNG

With offices in Fort St. John and Dawson Creek, PNG operates natural gas transmission and distribution systems that serve approximately 41,000 residential, commercial and industrial customers in northern B.C. The company has been providing customers with safe and reliable service since 1968.

WGL

Washington Gas is a regulated natural gas utility providing safe, reliable and affordable natural gas to more than 1.1 million customers in the District of Columbia, Maryland and Virginia. Washington Gas was chartered by the U.S. Congress in 1848 and has been providing energy to residential, commercial and industrial customers for 170 years.

1 Including transportation and non-regulated business lines.

2 SEMCO Energy Gas Company and ENSTAR Natural Gas Company are divisions of SEMCO Energy, Inc.