NiSource Inc. announced that its board of directors approved its plan to separate into two publicly traded companies—NiSource Inc., a fully regulated gas and electric utilities company, and Columbia Pipeline Group Inc., an MLP with expected initial assets including a 14.6% interest in CPG OpCo LP, which will own about all of NiSource’s gas transmission, midstream and storage assets.

Columbia Pipeline Partners filed a registration statement with the U.S. Securities and Exchange Commission for an IPO of its common units. Columbia Pipeline Partners plans to list its common units on the New York Stock Exchange under the ticker symbol “CPPL.”