1. April 1, 2016 CenterPoint Energy, Inc. TX 100% Utility Holding, LLC DE LLC 100% CenterPoint Energy Resources Finance, Inc. DE Enable Gas Transmission, LLC DE LLC 100% CenterPoint Energy – Thunder Pipeline Company, LLC DE LLC 100% CenterPoint Energy Houston Electric, LLC TX LLC 100% CenterPoint Energy Service Company, LLC TX LLC 100% CenterPoint Energy Power Systems, Inc. DE 100% CenterPoint Energy Services, Inc. DE 100% CenterPoint Energy Resources Corp. DE Inactive Subsidiaries 100% CenterPoint Energy Intrastate Pipelines, LLC DE LLC 100% CenterPoint Energy Mobile Energy Solutions, Inc. TX 100% Entex NGV, Inc. DE 100% Arkansas Louisiana Finance Corporation DE 100% CenterPoint Energy Gas Receivables, LLC DE LLC 100% Allied Materials Corporation TX 100% Arkla Industries, Inc. DE 100% United Gas, Inc. TX 100% Enable Mississippi River Transmission, LLC DE LLC 100% CenterPoint Energy MRT Services LLC DE 100% Enable Illinois Intrastate Transmission, LLC DE LLC 100% Enable Intrastate Holdings I, LLC DE LLC 100% Enable OQ, LLC DE LLC 50% OQ Partners TX (GENERAL PARTNERSHIP) 100% Minnesota Intrastate Pipeline Company DE 81.4% Pine Pipeline Acquisition Company, LLC DE LLC 100% CenterPoint Energy Hub Services, Inc. DE 100% Enable Pipeline Services, LLC DE 100% CenterPoint Energy Restoration Bond Company, LLC DE LLC 100% CenterPoint Energy Transition Bond Company, LLC DE LLC 100% CenterPoint Energy Funding Company DE 100% CenterPoint Energy Investment Management, Inc. DE 100% CenterPoint Energy International, Inc. DE 100% CenterPoint Energy Properties, Inc. DE 100% CenterPoint Energy Products, Inc. DE 100% NorAm Energy Corp. DE 100% CenterPoint Energy Electric Services, LLC DE LLC CenterPoint Energy Intelligent Energy Solutions, LLC DE LLC 100% CenterPoint Energy Southeastern Pipelines Holding, LLC DE LLC Southeast Supply Header, LLC DE LLC 100% CenterPoint Energy Transition Bond Company II, LLC DE LLC 100% Labo Land Holdings, LLC DE LLC 50% CrossPoint Pipeline, LLC DE LLC 100% CenterPoint Energy Transition Bond Company III, LLC DE LLC Enable Midstream Partners, LP DE LP 100% CenterPoint Energy, Inc. (a Delaware entity) DE 30% 3603 Jensen, LLC TX LLC Caliber Gathering, LLC DE LLC Enable East Texas Gas Processing, LLC DE LLC Waskom Gas Processing Company TX (GENERAL PARTNERSHIP) Waskom Products Pipeline LLC TX LLC 100% Waskom Midstream LLC TX LLC 50% 100% CenterPoint Energy Transition Bond Company IV, LLC DE LLC 100% Waskom Transmission LLC TX LLC 100% National Furnace Company TX 100% CenterPoint Energy Smart Services, LLC DE LLC 100% Enable Texas Liquids Pipeline, LLC DE LLC 100% Enable McLeod, LLC DE LLC 100% Enable Prism Holdings, LLC DE LLC 100% Enable Woodlawn, LLC DE LLC Enable Waskom Holdings, LLC DE LLC 100% Intex, Inc. TX 100% 50% Enable Bakken Crude Services, LLC DE LLC 100% Palmera Pipeline, LLC DE LLC Enable GP, LLC DE LLC 100% (55.4% LP Interest) Local gas distribution divisions: CenterPoint Energy Arkansas Gas CenterPoint Energy Louisiana Gas CenterPoint Energy Minnesota Gas CenterPoint Energy Mississippi Gas CenterPoint Energy Oklahoma Gas CenterPoint Energy Texas Gas Operations 50% Management (40% Economic) Enable Intrastate Holdings II LLC DE LLC Enable Oklahoma Intrastate Transmission, LLC and subsidiaries 100% Former Enogex subs 100% Enable Midstream Services, LLC DE LLC 1% SESH Capital, LLC DE LLC 100% SESH Sub Inc. DE 99% 50% 27.71% 926 Pulliam Street, LLC TX LLC 100% CenterPoint Energy Services Retail, LLC OK LLC 100% Lakshore Energy Services, LLC OK LLC