<SUBMISSION>
<ACCESSION-NUMBER>0001193125-14-067399
<TYPE>FWP
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20140225
<DATE-OF-FILING-DATE-CHANGE>20140225
<SUBJECT-COMPANY>
<COMPANY-DATA>
<CONFORMED-NAME>MAGELLAN MIDSTREAM PARTNERS LP
<CIK>0001126975
<ASSIGNED-SIC>4610
<IRS-NUMBER>731599053
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>FWP
<ACT>34
<FILE-NUMBER>333-183013
<FILM-NUMBER>14641240
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE WILLIAMS CENTER, MD 28-1
<CITY>TULSA
<STATE>OK
<ZIP>74172
<PHONE>918 574 7000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>ONE WILLIAMS CENTER, MD 28-1
<CITY>TULSA
<STATE>OK
<ZIP>74172
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>WILLIAMS ENERGY PARTNERS L P
<DATE-CHANGED>20001024
</FORMER-COMPANY>
</SUBJECT-COMPANY>
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<COMPANY-DATA>
<CONFORMED-NAME>MAGELLAN MIDSTREAM PARTNERS LP
<CIK>0001126975
<ASSIGNED-SIC>4610
<IRS-NUMBER>731599053
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
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<FORM-TYPE>FWP
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE WILLIAMS CENTER, MD 28-1
<CITY>TULSA
<STATE>OK
<ZIP>74172
<PHONE>918 574 7000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>ONE WILLIAMS CENTER, MD 28-1
<CITY>TULSA
<STATE>OK
<ZIP>74172
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>WILLIAMS ENERGY PARTNERS L P
<DATE-CHANGED>20001024
</FORMER-COMPANY>
</FILED-BY>
<DOCUMENT>
<TYPE>FWP
<SEQUENCE>1
<FILENAME>d679934dfwp.htm
<DESCRIPTION>FWP
<TEXT>
<HTML><HEAD>
<TITLE>FWP</TITLE>
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 <BODY BGCOLOR="WHITE">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Filed Pursuant to Rule 433 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Issuer Free Writing Prospectus dated February&nbsp;25, 2014 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Relating to Preliminary Prospectus Supplement dated February&nbsp;25, 2014 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Registration No.&nbsp;333-183013 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>MAGELLAN MIDSTREAM PARTNERS, L.P. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>5.15% Senior Notes due 2043 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" STYLE="BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000">Issuer:</TD>
<TD VALIGN="bottom" STYLE="BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-TOP:1px solid #000000; BORDER-BOTTOM:1px solid #000000">Magellan Midstream Partners, L.P.</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Note type:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Senior Unsecured Notes</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Pricing date:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">February 25, 2014</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Settlement date: (T+5)</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">March 4, 2014</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Maturity date:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">October 15, 2043</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Principal amount:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">$250,000,000. The Senior Notes due 2043 offered hereby constitute an additional issuance of the $300,000,000 aggregate principal amount of senior notes we originally issued on October 10,
2013. The series of notes offered hereby will form a single series with those senior notes issued on October 10, 2013 having the same maturity. The notes will have the same CUSIP number and will trade interchangeably with the previously issued notes
of the series upon settlement.</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Benchmark:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">U.S. Treasury 3.75% due November 15, 2043</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Benchmark yield:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">3.65%</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Re-offer spread:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">+130 bps</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Re-offer yield to maturity:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">4.95%</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Coupon:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">5.15%</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Public offering price:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">103.085%, plus an aggregate amount of $5,150,000, consisting of the pre-issuance accrued and unpaid interest from October 10, 2013.</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Optional redemption:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Prior to April 15, 2043 (the date that is six months prior to the maturity date of the notes), at a price equal to the greater of (1) 100% of the principal amount of the notes to be redeemed
and (2) the sum of the present values of the remaining scheduled payments of principal and interest on the notes to be redeemed (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semi-annual basis
(assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 25 basis points; plus, in either case, accrued and unpaid interest, if any, to the date of redemption. On or after April 15, 2043 (the date that is six months
prior to the maturity date of the notes), we will pay an amount equal to 100% of the principal amount of the notes to be redeemed plus accrued and unpaid interest, if any, on the notes redeemed to the redemption date.</TD></TR>
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<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Interest payment dates:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">April&nbsp;15 and October&nbsp;15, beginning April&nbsp;15, 2014.</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Initial interest payment to include pre-issuance accrued and unpaid interest from, and including, October&nbsp;10, 2013.</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">CUSIP / ISIN:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">559080 AG1 / US559080AG18</TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Joint Book-Running Managers:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Wells Fargo Securities, LLC</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Barclays Capital Inc.</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Mitsubishi UFJ Securities (USA), Inc.</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">U.S. Bancorp Investments, Inc.</P></TD></TR>
<TR STYLE="font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">Co-Managers:</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000"><FONT STYLE="font-size:8pt">&nbsp;&nbsp;</FONT></TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Citigroup Global Markets Inc.</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">J.P. Morgan Securities LLC</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Morgan Stanley &amp; Co. LLC</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">PNC Capital Markets LLC</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">RBC Capital Markets, LLC</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">SunTrust Robinson Humphrey, Inc.</P></TD></TR>
</TABLE> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>************************ </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The issuer has filed a registration statement (including a preliminary prospectus supplement and a prospectus) with the U.S. Securities and Exchange
Commission (SEC) for the offering to which this communication relates. Before you invest, you should read the preliminary prospectus supplement, the issuer&#146;s 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 supplement and prospectus if you request it by calling Wells Fargo Securities, LLC toll-free at 1-800-326-5897, Barclays Capital Inc. toll-free at 1-888-603-5847, Mitsubishi UFJ Securities
(USA), Inc. toll-free at 1-877-649-6848 or U.S. Bancorp Investments, Inc. toll-free at 1-877-558-2607. </P>
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</SUBMISSION>
