Columbia Gas of Maryland delivers clean, affordable and efficient natural gas to approximately 34,000 customers. With headquarters in Canonsburg, Pennsylvania, it is one of NiSource’s six regulated utility companies. NiSource (NYSE: NI) is one of the largest fully-regulated utility companies in the United States, serving nearly 4 million customers through its local Columbia Gas and NIPSCO brands.

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Columbia Gas of Maryland

Columbia Gas of Maryland's headquarters in Canonsburg, PA, United States

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