Company:  WILLIAMS PARTNERS L.P. (WPZ)
Form Type:  4
Filing Date:  5/1/2012 
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: 
$48.09  
Change: 
0.26 (0.54%)  
Trade Time: 
Jun 17  
Market Cap: 
$19.90B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    EXPLANATIONS AND REMARKS
    REPORTING OWNERS
    SIGNATURES