Historical Timeline

1848Washington Gas Light Company received charter from Congress
1917Washington Gas purchased Rosslyn Gas Company in Virginia and added it to
controlling interest already held in Georgetown Gaslight Company
1939Alexandria Gas Company, founded in 1851, acquired by Washington Gas
1959Washington Gas acquired Shenandoah Gas Company
1963WGL announced that a new subsidiary, Hampshire Gas Company, planned to
acquire and operate a natural gas field in West Virginia
1964Stock of Frederick Gas Company (MD) acquired by Washington Gas
1996Frederick Gas Company merged into parent Washington Gas
1998Washington Gas sold West Virginia distribution assets to Mountaineer Gas
2000Shenandoah Gas Company merged into parent Washington Gas
2000WGL Holdings, Inc. established and became the parent holding company for
Washington Gas Light Company and each of its subsidiaries