Utilities

Our Utilities business operates rate-regulated natural gas distribution and storage infrastructure. We are committed to delivering safe, reliable, and affordable energy to our 1.6 million residential, commercial, and industrial customers1. With a substantial rate base of approximately US$5.4 billion, our Utilities include Washington Gas and SEMCO Energy, serving customers across Virginia, Maryland, the District of Columbia (D.C.), and Michigan.

 


Headquartered in Port Huron, Michigan, SEMCO2 is a regulated public utility that delivers natural gas to approximately 330,000 residential, commercial, and industrial customers in service territories in Michigan, covering portions of the southern half of the state's Lower and in the central, eastern and western parts of the state's Upper Peninsula.

Washington Gas is a regulated natural gas utility providing safe, reliable and affordable natural gas for more than 175 years. Today, Washington Gas serves over 1.2 million customers in the District of Columbia, Maryland and Virginia with energy they rely on every day. Washington Gas was chartered by the U.S. Congress in 1848 and has been providing energy to residential, commercial and industrial customers ever since.

  1. Including transportation and non-regulated business lines.
  2. SEMCO Energy Gas Company is a division of SEMCO Energy, Inc.
 

Storage Infrastructure

Hampshire Gas is a subsidiary of WGL that provides regulated interstate natural gas storage services to Washington Gas under a FERC approved interstate storage service tariff.

Retail Energy Marketing

WGL Energy Services is a subsidiary of Washington Gas Resources that sells natural gas and electricity to retail customers on an unregulated basis in Maryland, Virginia, Delaware, Pennsylvania, Ohio, D.C. and New Jersey.

 

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 Michigan, covering portions of the southern half of the state's Lower and in the central, eastern and western parts of the state's Upper Peninsula.

WGL

Washington Gas is a regulated natural gas utility providing safe, reliable and affordable natural gas to more than 1.2 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 175 years.