The company said the Indiana Utility Regulatory Commission on Tuesday approved the final phase of an agreement with various consumer groups to reflect decreases in rates as a result of the federal tax overhaul last year.
CenterPoint Energy Inc.'s purchase of Vectren would take out Indiana's 13th-largest public company, with $2.4 billion in annual revenue. Every county surrounding Marion County receives service from Vectren.
Miller Pipeline has seen its head count grow from 1,700 to 3,600 since 2008, partly because of its investment in the shale-oil fracking boom. But it also has a lucrative fallback line of business: replacing aging natural-gas pipes.