TransCanada in talks to buy Columbia Pipeline Group: sources

TransCanada said in a statement it was in discussions with a third party for a potential transaction, but no agreement had been reached. The Wall Street Journal, which first reported talks between the two companies on Thursday, said the deal could be valued at more than $10 billion. Columbia Pipeline Group had a market value of about $8 billion as of Wednesday's close and long-term debt of $2.75 billion as of Dec. 31.