| Jurisdiction | ||||||||
| Name of Subsidiary | of Formation | Effective Ownership | ||||||
| Acadian Gas, LLC | Delaware | Enterprise Products Operating LLC — 34% DEP Operating Partnership, L.P. — 66% | ||||||
| Acadian Gas Pipeline System | Texas | TXO-Acadian Gas Pipeline, LLC — 50% MCN-Acadian Gas Pipeline, LLC — 50% | ||||||
| Calcasieu Gas Gathering System | Texas | TXO-Acadian Gas Pipeline, LLC — 50% MCN-Acadian Gas Pipeline, LLC — 50% | ||||||
| Cypress Gas Marketing, LLC | Delaware | Acadian Gas, LLC — 100% | ||||||
| Cypress Gas Pipeline, LLC | Delaware | Acadian Gas, LLC — 100% | ||||||
| DEP OLPGP, LLC | Delaware | Duncan Energy Partners L.P. — 100% | ||||||
| DEP Operating Partnership, L.P. | Delaware | Duncan Energy Partners L.P. — 99.999% DEP OLPGP, LLC — 0.001% | ||||||
| Enterprise Lou-Tex Propylene Pipeline L.P. | Delaware | Enterprise Products Operating LLC — 33% Propylene Pipeline Partnership L.P. — 1% DEP Operating Partnership, L.P. — 66% | ||||||
| Evangeline Gas Corp. | Delaware | Evangeline Gulf Coast Gas, LLC — 45.05% Third Parties — 54.95% | ||||||
| Evangeline Gas Pipeline Company L.P. | Delaware | Evangeline Gulf Coast Gas, LLC — 45% Evangeline Gas Corp. — 10% Third Party — 45% | ||||||
| Evangeline Gulf Coast Gas, LLC | Delaware | Acadian Gas, LLC — 100% | ||||||
| MCN Acadian Gas Pipeline, LLC | Delaware | Acadian Gas, LLC — 100% | ||||||
| MCN Pelican Interstate Gas, LLC | Delaware | Acadian Gas, LLC — 100% | ||||||
| Mont Belvieu Caverns, LLC | Delaware | Enterprise Products Operating LLC — 33.365% Enterprise Products OLPGP, Inc. — 0.635% DEP Operating Partnership, L.P. — 66% | ||||||
| Neches Pipeline System | Texas | TXO-Acadian Gas Pipeline, LLC — 50% MCN-Acadian Gas Pipeline, LLC — 50% | ||||||
| Pontchartrain Natural Gas System | Texas | TXO-Acadian Gas Pipeline, LLC — 50% MCN-Acadian Gas Pipeline, LLC — 50% | ||||||
| Sabine Propylene Pipeline L.P. | Texas | Enterprise Products Operating LLC — 33% Propylene Pipeline Partnership L.P. — 1% DEP Operating Partnership, L.P. — 66% | ||||||
| South Texas NGL Pipeline LLC | Delaware | Enterprise Products Operating LLC — 34% DEP Operating Partnership, L.P. — 66% | ||||||
| Tejas-Magnolia Energy, LLC | Delaware | Pontchartrain Natural Gas System — 96.6% MCN-Pelican Interstate Gas, LLC — 3.4% | ||||||
| TXO-Acadian Gas Pipeline, LLC | Delaware | Acadian Gas, LLC — 100% | ||||||
