EXHIBIT 21.1 LIST OF SUBSIDIARIES ENTERPRISE PRODUCTS PARTNERS L.P. ENTERPRISE PRODUCTS OPERATING L.P. Acadian Acquisition, LLC, a Delaware limited liability company Acadian Consulting, LLC, a Delaware limited liability company Acadian Gas LLC, a Delaware limited liability company Acadian Gas Pipeline System, a Texas general partnership Cajun Pipeline Company, LLC, a Texas limited liability company Calcasieu Gas Gathering System, a Texas general partnership Chunchula Pipeline Company, LLC, a Texas limited liability company Cypress Gas Marketing, LLC, a Delaware limited liability company Cypress Gas Pipeline, LLC, a Delaware limited liability company Deep Gulf Development, LLC, a Delaware limited liability company E-Cypress, LLC, a Delaware limited liability company Enterprise Fractionation LLC, a Delaware limited liability company Enterprise Gas Processing LLC, a Delaware limited liability company Enterprise Lou-Tex NGL Pipeline L.P., a Texas limited partnership Enterprise Lou-Tex Propylene Pipeline L.P., a Texas limited partnership Enterprise NGL Pipelines, LLC, a Delaware limited liability company Enterprise NGL Private Lines & Storage LLC, a Delaware limited liability company Enterprise Norco LLC, a Delaware limited liability company Enterprise Offshore Development, LLC, a Delaware limited liability company Enterprise Products Texas Operating L.P., a Texas limited partnership Enterprise Terminals & Storage, LLC, a Delaware limited liability company E-Oaktree, LLC, a Delaware limited liability company EPIK Gas Liquids LLC, a Texas limited liability company EPIK Terminalling L.P., a Texas limited partnership EPOLP 1999 Grantor Trust, a trust formed under Texas law Evangeline Gulf Coast Gas, LLC, a Delaware limited liability company Grande Isle Pipeline LLC, a Delaware limited liability company HSC Pipeline Partnership, L.P., a Texas limited partnership Mapletree, LLC, a Delaware limited liability company MCN Acadian Gas Pipeline, LLC, a Delaware limited liability company MCN Pelican Interstate Gas, LLC, a Delaware limited liability company MCN Pelican Transmission LLC, a Delaware limited liability company Mid-America Pipeline Co., LLC, a Delaware limited liability company Moray Pipeline Company, LLC, a Delaware limited liability company Neches Pipeline System, a Texas general partnership Ponchatrain Natural Gas System, a Texas general partnership Propylene Pipeline Partnership, L.P., a Texas limited partnership Quest Transmission Ltd., a Delaware limited partnership Quest Energy Co., a Delaware corporation Sabine Propylene Pipeline L.P., a Texas limited partnership Sailfish Pipeline Company, L.L.C., a Delaware limited liability company Seminole Pipeline Company, a Delaware corporation Sorrento Pipeline Company, LLC, a Texas limited liability company Tejas-Magnolia Energy, LLC, a Delaware limited liability company TXO-Acadian Gas Pipeline, LLC, a Delaware limited liability company Venice Pipeline LLC, a Delaware limited liability company