Company:  WILLIAMS PARTNERS L.P. (WPZ)
Form Type:  424B2
Filing Date:  4/4/2012 
CIK:  0001324518 
Address:  ONE WILLIAMS CENTER 
City, State, Zip:  TULSA, Oklahoma 74172-0172 
Telephone:  (918) 573-2000 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$52.23  
Change: 
0.23 (0.44%)  
Trade Time: 
May 24  
Market Cap: 
$21.62B
Description of Business
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  FORM 424B2
    CALCULATION OF REGISTRATION FEE
    TABLE OF CONTENTS
    FORWARD-LOOKING STATEMENTS
    SUMMARY
    Business Strategies
    Underwriting and Conflicts
    THE OFFERING
    RISK FACTORS
    USE OF PROCEEDS
    CAPITALIZATION
      Indemnification
    LEGAL MATTERS
    EXPERTS
    WHERE YOU CAN FIND MORE INFORMATION
    RISK FACTORS
    USE OF PROCEEDS
    RATIO OF EARNINGS TO FIXED CHARGES
    DESCRIPTION OF THE DEBT SECURITIES
    DESCRIPTION OF THE COMMON UNITS
    Transfer Agent and Registrar
    Power of Attorney
    Change of Management Provisions
      Indemnification
    MATERIAL TAX CONSIDERATIONS
    PLAN OF DISTRIBUTION
    SELLING SECURITYHOLDERS