Columbia Gas of Virginia delivers clean, affordable and efficient natural gas to more than 290,000 customers in portions of Northern Virginia, Hampton Roads, suburban Richmond, Central Virginia, the Shenandoah Valley, the Lynchburg region and parts of Western Virginia. Headquartered in Chesterfield County, 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.