WGL Holdings – Locations and Subsidiaries

Head Office

WGL Holdings, Inc.

101 Constitution Avenue North West

Washington

District of Columbia 20080

USA

P:1 703 750 2000

F:1 202 624 6277

http://www.wglholdings.com

Other Locations and Subsidiaries

Shenandoah Gas Division

Washington Gas Energy Services

350 Hillandale Lane

13865 Sunrise Valley Drive

Winchester

Suite 200

Virginia 22602

Herndon

USA

Virginia 20171

USA

Frederick Gas Division

Washington Gas

1800 N Market Street

6801 Industrial Road

Frederick

Springfield

Maryland 21701

Virginia 22151

USA

USA