UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: April 14, 2016 4:00 P.M.
Form: S-4
CIK: 0001629995
Company Name: Columbia Pipeline Group, Inc.
File Number: 333-209653
CIK: 0000022099
Company Name: COLUMBIA ENERGY GROUP
File Number: 333-209653-03
CIK: 0001667154
Company Name: CPG OpCo LP
File Number: 333-209653-02
CIK: 0001667153
Company Name: CPG OpCo GP LLC
File Number: 333-209653-01