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Member
Columbia
Gas of PA,Inc.
Columbia Gas of Pennsylvania
Columbia Gas of Maryland
650 Washington Road
Pittsburgh, Pennsylvania 15228
 
 
Columbia Gas has a heritage that traces a path
of progress from 1885 to the present, and beyond.
Columbia Gas of Pennsylvania and Columbia Gas of
Maryland are subsidiaries of NiSource Inc., the second
largest natural gas distributor in the U.S. and engage
in virtually all phases of the natural gas
business.
Columbia Gas
of Pennsylvania and Columbia Gas of Maryland bring
expert service to more than 410,000 customers in 452
Pennsylvania communities in 26 counties and 32,000
customers in 40 communities in three Maryland counties
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Allegheny
Power
Chartiers
Natural Gas Co., Inc.
Citizens'
Electric Company
Columbia
Gas of PA, Inc.
Dominion
Peoples
Duquesne
Light Company
Equitable
Gas Company
Gasco
Distribution Systems, Inc.
GPU
Energy (Metropolitan Edison Company
and Pennsylvania Electric Company)
National
Fuel Gas Distribution Corp.
Nido's
Ltd.
PG
Energy
PECO
Energy Company
Pennsylvania
Power Company
Pike
County Light & Power Company
PPL
Utilities
UGI
Utilities, Inc.
Valley
Cities Gas, NUI
Wellsboro
Electric Company
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