NiSource executive and CEO of former subsidiary Columbia Gas of Massachusetts retiring
Carrie Hightman, who served as president and CEO of Columbia Gas of Massachusetts, once a subsidiary company of Merrillville-based NiSource, is retiring.
Carrie Hightman, who served as president and CEO of Columbia Gas of Massachusetts, once a subsidiary company of Merrillville-based NiSource, is retiring.
Merrillville-based NiSource, parent of NIPSCO, announced Feb. 26 it is selling its business unit Columbia Gas of Massachusetts to Eversource Energy, a New England utility that serves about 4 million customers in Connecticut, Massachusetts and New Hampshire.