Exhibit 32

CERTIFICATIONS
OF CEO AND CFO PURSUANT TO18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In
connection with this Annual Report on Form 10-K of the Ridgewood Energy W Fund,
LLC (the Fund) for the fiscal year ended December 31, 2008, as filed with the
Securities and Exchange Commission on the date hereof, (the Report), each of
the undersigned officers of the Fund hereby certifies, pursuant to 18 U.S.C.
(section) 1350, as adopted pursuant to (section) 906 of the Sarbanes-Oxley Act
of 2002, that to the best of their knowledge:

| |     |                                                                                                                                                    
| | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------
| | (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 Fund.

|       |                |     |        |                                                     
|------ | -------------- | --- | ------ | ----------------------------------------------------
|Dated: | March 13, 2009 |     |        | RIDGEWOOD
 ENERGY W FUND, LLC                       
|       |                |     |        |                                                     
|       |                | By: | /s/    | ROBERT E. SWANSON                                   
|       |                |     |       
|       |                |     | Name:  | Robert E. Swanson                                   
|       |                |     | Title: | President and Chief Executive Officer               
|       |                |     |        | (Principal Executive Officer)                       
|       |                |     |        |                                                     
|Dated: | March 13, 2009 |     |        |                                                     
|       |                | By: | /s/    | KATHLEEN P. McSHERRY                                
|       |                |     |       
|       |                |     | Name:  | Kathleen P. McSherry                                
|       |                |     | Title: | Executive Vice President and Chief Financial Officer
|       |                |     |        | (Principal Financial and Accounting Officer)        

A
signed original of this written statement or other document authenticating,
acknowledging, or otherwise adopting the signature that appears in typed form
within the electronic version of this written statement has been provided to
Ridgewood Energy W Fund, LLC and will be retained by Ridgewood Energy W Fund,
LLC and furnished to the Securities and Exchange Commission or its staff upon
request. The foregoing certification is being furnished solely pursuant to 18
U.S.C. Section 1350 and is not being filed as part of this report or as a
separate disclosure document.

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