Exhibit 32.01

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of NuStar GP Holdings, LLC (the Company) on Form 10-Q for the quarter ended March 31, 2007, as filed with the Securities and
Exchange Commission on the date hereof (the Report), I, Curtis V. Anastasio, President and Chief Executive Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley
Act of 2002, that:



| | 1. | The Report fully complies with the requirements of Section 13(a) or 15(d) 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 Company.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------



|                                     
|-------------------------------------
|/s/ Curtis V. Anastasio              
|Curtis V. Anastasio                  
|President and Chief Executive Officer

May 9, 2007

A signed
original of the written statement required by Section 906 has been provided to NuStar GP Holdings, LLC and will be retained by NuStar GP Holdings, LLC and furnished to the Securities and Exchange Commission or its staff upon request.



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CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of NuStar GP
Holdings, LLC (the Company) on Form 10-Q for the quarter ended March 31, 2007, as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Steven A. Blank, Senior Vice President, Chief Financial Officer and
Treasurer of the Company, hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:



|1. | The Report fully complies with the requirements of Section 13(a) or 15(d) 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 Company.
|-- | ----------------------------------------------------------------------------------------------------------------------------------------------------



|                                                            
|------------------------------------------------------------
|/s/ Steven A. Blank                                         
|Steven A. Blank                                             
|Senior Vice President, Chief Financial Officer and Treasurer
|May 9, 2007                                                 

A signed original of the written statement required by Section 906 has been provided to NuStar GP Holdings,
LLC and will be retained by NuStar GP Holdings, LLC and furnished to the Securities and Exchange Commission or its staff upon request.