NiSource, Inc. is an energy holding which, through its subsidiaries provides natural gas, electricity and other products and services to customers located within a corridor stretching from the Gulf Coast through the Midwest to New England. It is also engaged in natural gas transmission, storage and distribution, as well as electric generation, transmission and distribution. The company operates through three segments: Gas Distribution Operations, Columbia Pipeline Group Operations and Electric Operations. The Gas Distribution Operations segment provides natural gas service and transportation for residential, commercial and industrial customers in Ohio, Pennsylvania, Virginia, Kentucky, Maryland, Indiana and Massachusetts. The Columbia Pipeline Group Operations segment offers gas transportation and storage services for LDCs, marketers and industrial and commercial customers located in 16 northeastern, mid-Atlantic, Midwestern and southern states. The Electric Operations segment provides electric service in 20 counties in the northern part of Indiana. NiSource was founded in 1987 and is headquartered in Merrillville, IN.