Company:  WILLIAMS PARTNERS L.P. (WPZ)
Form Type:  10-K
Filing Date:  2/28/2012 
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: 
$52.06   		Change: 
1.23 (2.42%)  
Trade Time: 
May 17   		Market Cap: 
$21.55B
Description of Business
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  FORM 10-K
    PART I
      Items 1. Business
      Item 1A. Risk Factors
      Item 1B. Unresolved Staff Comments
      Item 2. Properties
      Item 3. Legal Proceedings
      Item 4. Mine Safety Disclosures
    PART II
      Item 5. Market for Registrant's Common Equity, Related ...
      Item 6. Selected Financial Data
      Item 7. Management's Discussion and Analysis of Financial ...
        Results of Operations
      Item 7A. Quantitative and Qualitative Disclosures About ...
      Item 8. Financial Statements and Supplementary Data
        REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
        REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
        REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
        INCOME STATEMENT
        BALANCE SHEET
        CASH FLOW
        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
          Note 17. Subsequent Events
      Item 9. Changes In and Disagreements With Accountants on ...
      Item 9A. Controls and Procedures
      Report of Independent Registered Public Accounting Firm on ...
      Item 9B. Other Information
    PART III
      Item 10. Directors, Executive Officers and Corporate Governance
        NAME AND TITLE
      Item 11. Executive Compensation
        COMPENSATION TABLE
      Item 12. Security Ownership of Certain Beneficial Owners and ...
        BENEFICIAL OWNERS
        BENEFICIAL OWNERS
        BENEFICIAL OWNERS
      Item 13. Certain Relationships and Related Transactions, and ...
      Item 14. Principal Accounting Fees and Services
    PART IV
      Item 15. Exhibits and Financial Statement Schedules
    SIGNATURE
    EXHIBIT INDEX
  EXHIBIT 12
    RATIO COMPUTATION
  EXHIBIT 21
  EXHIBIT 23.1
    Consent of Independent Registered Public Accounting Firm
  EXHIBIT 23.2
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 24
    POWER OF ATTORNEY
  EXHIBIT 31.1
    CERTIFICATIONS
  EXHIBIT 31.2
    CERTIFICATIONS
  EXHIBIT 32
    CERTIFICATION PURSUANT TO
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