Joint Filing Agreement
Exhibit 99.11
In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as
amended, each of the undersigned does hereby consent and agree to the joint filing on behalf of
each of them of a Statement on Schedule 13D/A and all amendments thereto with respect to the units
representing limited partner interests in Enterprise GP Holdings L.P. beneficially owned by each of
them, and to the inclusion of this Joint Filing Agreement as an exhibit thereto.
| Dated: February 29, 2008 | /s/ Xxx X. Xxxxxx | |||||
| Xxx X. Xxxxxx | ||||||
| Dated: February 29, 2008 | XXX XXXXXX LLC | |||||
| By: | /s/ W. Xxxxxxx Xxxxxx | |||||
| W. Xxxxxxx Xxxxxx | ||||||
| Executive Vice President | ||||||
| Dated: February 29, 2008 | DD SECURITIES LLC | |||||
| By: | /s/ W. Xxxxxxx Xxxxxx | |||||
| W. Xxxxxxx Xxxxxx | ||||||
| Executive Vice President | ||||||
| Dated: February 29, 2008 | DFI HOLDINGS, LLC | |||||
| By: XXX XXXXXX LLC, its sole member | ||||||
| By: | /s/ W. Xxxxxxx Xxxxxx | |||||
| W. Xxxxxxx Xxxxxx | ||||||
| Executive Vice President | ||||||
| Dated: February 29, 2008 | DFI GP HOLDINGS, L.P. | |||||
| By: DFI HOLDINGS, LLC, its general partner | ||||||
| By: XXX XXXXXX LLC, its sole member | ||||||
| By: | /s/ W. Xxxxxxx Xxxxxx | |||||
| W. Xxxxxxx Xxxxxx | ||||||
| Executive Vice President | ||||||
| Dated: February 29, 2008 | XXXXXX FAMILY INTERESTS, INC. | |||||
| By: | /s/ Xxxxxxx X. Xxxxxx | |||||
| Xxxxxxx X. Xxxxxx | ||||||
| President | ||||||
| Dated: February 29, 2008 | EPCO, INC. | |||||
| By: | /s/ W. Xxxxxxx Xxxxxx | |||||
| W. Xxxxxxx Xxxxxx | ||||||
| President and Chief Executive Officer | ||||||
| Dated: February 29, 2008 | EPCO HOLDINGS, INC. | |||||
| By: | /s/ W. Xxxxxxx Xxxxxx | |||||
| W. Xxxxxxx Xxxxxx | ||||||
| President and Chief Executive Officer | ||||||
