Columbia Pipeline Floats IPO, Hopes for Upward of $1B January 29, 2015 Columbia Pipeline Group, Energy Services, NiSource Username Password Remember me Forgot Password? Join Us Related Post navigation Marcellus-Utica Midstream Conf: Marcellus is “Best of the Best”Enterprise Releases 2014 Results – Remains Mum on ATEX Explosion You do not have permission to view the comments. Click here to cancel reply.Please Login to post a comment Notify me of follow-up comments by email.