| (1)   | The      Report fully complies with the requirements of Section 13(a) of the      Securities Exchange Act of 1934;and |
|-----------------|-----------------------------------------------------------------------------------------------------------------------|

| (2)   | The      information contained in the Report fairly presents, in all material      respects, the financial condition and results of operations of the      Registrant. |
|-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                                                                                                                                                                                                                                                                                                                                                                      |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                                                                                                                                                                                                                                                      |
|       /s/ Dr. Ralph S. Cunningham                                                       |
| Name:                                                                                                                                                                                                                                                                                                                                                                                     | Dr.      Ralph S. Cunningham |
| Title:                                                                                                                                                                                                                                                                                                                                                                                    | Chief      Executive Officer of EPE Holdings, LLCon      behalf of Enterprise GP Holdings L.P. |
|                                                                                                                                                                                                                                                                                                                                                                                      |   |
| Date:                                                                                                                                                                                                                                                                                                                                                                                     |  November      10, 2008 |

----