Exhibit 21.1

Name

Jurisdiction

Arlington Storage Company, LLC Central New York Oil And Gas Company, L.L.C. Finger Lakes LPG Storage, LLC Inergy Gas Marketing, LLC Inergy Pipeline East, LLC Inergy Storage, Inc. US Salt, LLC Inergy Crude Logistics, LLC Inergy Terminals, LLC Inergy Dakota Pipeline, LLC Inergy Midstream Operations, LLC Crestwood Gas Services Operating LLC Crestwood Gas Services Operating GP LLC Cowtown Gas Processing Partners L.P. Cowtown Pipeline Partners L.P. Crestwood Appalachia Pipeline LLC Crestwood Arkansas Pipeline LLC Crestwood Marcellus Pipeline LLC Crestwood Marcellus Midstream LLC Crestwood New Mexico Pipeline LLC Crestwood Panhandle Pipeline LLC Crestwood Pipeline LLC Crestwood Sabine Pipeline LLC Sabine Treating, LLC Crestwood Ohio Midstream Pipeline LLC E. Marcellus Asset Company, LLC

Delaware New York Delaware Delaware Delaware Delaware Delaware Delaware Delaware Delaware Delaware Delaware Delaware Texas Texas Texas Texas Delaware Delaware Texas Texas Texas Texas Texas Delaware Delaware