Duncan Energy Partners L.P. (NYSE: DEP) is a publicly traded partnership that provides midstream energy services, including gathering, transportation, marketing and storage of natural gas, in addition to NGL fractionation (or separation), transportation and storage and petrochemical transportation and storage.

Duncan Energy Partners owns interests in assets located primarily in Texas and Louisiana, including interests in approximately 9,200 miles of natural gas pipelines with a transportation capacity aggregating approximately 6.8 billion cubic feet (“Bcf”) per day; more than 1,600 miles of NGL and petrochemical pipelines featuring access to the world's largest fractionation complex at Mont Belvieu, Texas; two NGL fractionation facilities located in south Texas; approximately 18 million barrels (“MMBbls”) of leased NGL storage capacity; 8.5 Bcf of leased natural gas storage capacity; and 34 underground salt dome caverns with more than 100 MMBbls of NGL storage capacity at Mont Belvieu.

Duncan Energy Partners L.P. is managed by its general partner, DEP Holdings, LLC, which is wholly-owned by Enterprise Products Partners L.P. Enterprise Products owns approximately 74 percent of the limited partner interests of Duncan Energy Partners. For more information about Duncan Energy Partners and its operations, visit www.deplp.com