Exhibit 21.1

LIST OF SUBSIDIARIES

 OF

 REGENCY ENERGY PARTNERS LP

All subsidiaries are wholly owned, directly or indirectly by Regency Energy Partners LP as of February 28, 2008.

§   Regency OLP GP LLC

§   Regency Energy Finance Corp.

§   Regency Gas Services LP

§   Regency Intrastate Gas LLC

§   Regency Liquids Pipeline LLC

§   Regency Gas Marketing LLC

§   Gulf States Transmission Corporation

§   Regency Field Services LLC

§   Regency Gas Utility LLC

§   Pueblo Holdings Inc.

§   Pueblo Midstream Gas Corporation

§   Regency Oil Pipeline LLC

§   CDM Resource Management LLC

§   FrontStreet Hugoton, LLC

§   Regency NX, LLC

§   WGP-KHC, LLC