We
consent to the use in this Amendment No. 3 to Registration Statement No.
333-138371 on Form
S-1 of (i) our report dated
December 14, 2006 (which report expresses an unqualified opinion and
includes an explanatory paragraph relating to the preparation of the combined financial statements
of Duncan Energy Partners Predecessor from the separate records maintained by Enterprise Products
Partners L.P.), relating to the combined financial statements and financial statement schedule of
Duncan Energy Partners Predecessor as of
September 30, 2006 and
December 31, 2005 and
2004, and for
the nine months ended
September 30, 2006 and for each of the three years in the period ended
December 31, 2005, (ii) our report dated
November 1, 2006, with respect to the balance sheet of
Duncan Energy Partners L.P. as of
September 30, 2006, and (iii) our report dated
November 1, 2006,
with respect to the balance sheet of DEP Holdings, LLC as of
October 31, 2006 appearing in the
Prospectus, which is a part of this Registration Statement.