Issuer Free Writing Prospectus

Filed Pursuant to Rule 433

Issuer Free Writing Prospectus dated August 5, 2009

Relating to Preliminary Prospectus Supplement dated August 5, 2009

Registration No. 333-137166

MAGELLAN MIDSTREAM PARTNERS, L.P.

6.55% Senior Notes due 2019

 

           

    Issuer:

   Magellan Midstream Partners, L.P.   
           

    Ratings:

   Baa2 (Stable) / BBB (Stable)*   
           

    Note type:

   Senior Unsecured Notes   
           

    Pricing date:

   August 5, 2009   
           

    Settlement date:

   August 12, 2009 (T+5)   
           

    Maturity date:

   July 15, 2019   
           

    Principal amount:

   $250,000,000 (reopening of $300,000,000 6.55% Senior Notes due 2019)
           

    Benchmark:

   U.S. Treasury 3.125% due May 15, 2019   
           

    Benchmark yield:

   3.655%   
           

    Re-offer spread:

   + 185 bps   
           

    Re-offer yield to maturity:

   5.505%   
           

    Coupon:

   6.55%   
           

    Public offering price:

   107.896% plus accrued interest from June 26, 2009
           

    Accrued interest:

   $2,092,361.11 from June 26, 2009   
           

    Net proceeds:

   Approximately $269.9 million, after deducting the underwriting discount and estimated offering expenses
           

    Optional redemption:

   Make whole call T + 50 bps   
           

    Interest payment dates:

   January 15 and July 15, beginning January 15, 2010
           

    CUSIP / ISIN:

   559080AE6 / US559080AE69   
           

    Joint Book-Running Managers:

  

J.P. Morgan Securities Inc.

Banc of America Securities LLC

SunTrust Robinson Humphrey, Inc.

  
           

    Co-Managers:

  

Deutsche Bank Securities Inc.

Mitsubishi UFJ Securities (USA), Inc.

RBC Capital Markets Corporation

UBS Securities LLC

Wells Fargo Securities, LLC

  
           
* Note: A securities rating is not a recommendation to buy, sell or hold securities and is subject to revision or withdrawal at any time.

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The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and any other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC web site at http://www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling J.P. Morgan Securities Inc. at (212) 834-4533, Banc of America Securities LLC toll-free at 1-800-294-1322 or SunTrust Robinson Humphrey, Inc. toll-free at (800) 685-4786.