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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES<br> SECURITIES AND EXCHANGE COMMISSION</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, D.C. 20549</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d)&nbsp;of the<br> Securities Exchange Act of 1934</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of Report (Date of earliest event reported): <b>July&nbsp;8, 2013</b></font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">DUKE ENERGY INDIANA,&nbsp;INC.</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact Name of Registrant as Specified in its Charter)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Indiana</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">1-3543</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">35-0594457</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or Other Jurisdiction<br>   of Incorporation)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission<br>   File Number)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer<br>   Identification No.)</font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">1000 East Main Street, Plainfield,&nbsp;Indiana&nbsp; 46168</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of Principal Executive Offices, including Zip code)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(704) 594-6200</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.6in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" face="Wingdings" style="font-size:3.0pt;">&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" face="Wingdings" style="font-size:3.0pt;">&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" face="Wingdings" style="font-size:3.0pt;">&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b))</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" face="Wingdings" style="font-size:3.0pt;">&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240. 13e-4(c))</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 8.01.&nbsp;&nbsp;&nbsp;Other Events.</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On July&nbsp;8, 2013, Duke Energy Indiana,&nbsp;Inc. (the &#147;Company&#148;) entered into an underwriting agreement, dated as of July&nbsp;8, 2013, with Citigroup Global Markets Inc., J.P. Morgan Securities LLC, Scotia Capital (USA) Inc. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein (the &#147;Underwriters&#148;), pursuant to which the Company agreed to issue and sell to the Underwriters (i)&nbsp;$150,000,000 aggregate principal amount of the Company&#146;s First Mortgage Bonds, Series&nbsp;VVV, Floating Rate, Due July&nbsp;11, 2016 (the &#147;2016 Bonds&#148;) and (ii)&nbsp;$350,000,000 aggregate principal amount of the Company&#146;s First Mortgage Bonds, Series&nbsp;WWW, 4.90%, Due July&nbsp;15, 2043 (the &#147;2043 Bonds&#148; and together with the 2016 Bonds, the &#147;Bonds&#148;). The Bonds will be issued under our Indenture of Mortgage or Deed of Trust, dated September&nbsp;1, 1939, between the Company and Deutsche Bank National Trust Company, as Trustee, as amended and supplemented from time to time (the &#147;Indenture&#148;), including by the Sixty-Sixth Supplemental Indenture, dated as of July&nbsp;11, 2013 (the &#147;Supplemental Indenture&#148;).&#160; The disclosure in this Item 8.01 is qualified in its entirety by the provisions of the Indenture, the Supplemental Indenture, which is filed as Exhibit&nbsp;4.1 hereto, and the Underwriting Agreement, which is filed as Exhibit&nbsp;99.1 hereto. Such exhibits are incorporated herein by reference. Also, in connection with the issuance and sale of the Bonds, the Company is filing a legal opinion regarding the validity of the Bonds as Exhibit&nbsp;5.1 to this Form&nbsp;8-K for the purpose of incorporating the opinion into the Company&#146;s Registration Statement No.&nbsp;333-169633-02.</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01.&#160;&#160;&#160;&#160;&#160; Financial Statements and Exhibits.</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">(d)&nbsp; Exhibits</font></i></p>
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<p style="margin:0in 0in .0001pt 1.0in;text-indent:-33.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.1</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Sixty-Sixth Supplemental Indenture, dated as of July&nbsp;11, 2013, between the Company and Deutsche Bank National Trust Company, as Trustee, providing for the issuance of the Bonds.</font></p>
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<p style="margin:0in 0in .0001pt 1.0in;text-indent:-33.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.1</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Opinion of Taft Stettinius&nbsp;&amp; Hollister LLP regarding validity of the Bonds.</font></p>
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<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.1</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Consent of Taft Stettinius&nbsp;&amp; Hollister LLP (included as part of Exhibit&nbsp;5.1).</font></p>
<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Underwriting Agreement, dated as of July&nbsp;8, 2013, among the Company and Citigroup Global Markets Inc., J.P. Morgan Securities LLC, Scotia Capital (USA) Inc. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, in connection with the Company&#146;s issuance and sale of the Bonds.</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:42.9pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">DUKE   ENERGY INDIANA,&nbsp;INC.</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:   July&nbsp;11, 2013</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/   Robert T. Lucas III,&nbsp;Esq.</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Robert   T. Lucas III,&nbsp;Esq.</font></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT&nbsp;INDEX</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
<tr>
<td width="7%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:7.78%;">
<p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit</font></b></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
<td width="89%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:89.84%;">
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description</font></b></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:7.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p align="right" style="margin:0in .25in .0001pt 0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.1</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sixty-Sixth   Supplemental Indenture, dated as of July&nbsp;11, 2013, between the Company   and Deutsche Bank National Trust Company, as Trustee, providing for the   issuance of the Bonds.</font></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p align="right" style="margin:0in .25in .0001pt 0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p align="right" style="margin:0in .25in .0001pt 0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.1</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion   of Taft Stettinius&nbsp;&amp; Hollister LLP regarding validity of the Bonds.</font></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p align="right" style="margin:0in .25in .0001pt 0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p align="right" style="margin:0in .25in .0001pt 0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.1</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent   of Taft Stettinius&nbsp;&amp; Hollister LLP (included as part of   Exhibit&nbsp;5.1).</font></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p align="right" style="margin:0in .25in .0001pt 0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.78%;">
<p align="right" style="margin:0in .25in .0001pt 0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.38%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="89%" valign="top" style="padding:0in 0in 0in 0in;width:89.84%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Underwriting   Agreement, dated as of July&nbsp;8, 2013, among the Company and Citigroup   Global Markets Inc., J.P. Morgan Securities LLC, Scotia Capital (USA) Inc.   and Wells Fargo Securities, LLC, as representatives of the several   underwriters named therein, in connection with the Company&#146;s issuance and   sale of the Bonds.</font></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3<a name="PB_3_234749_5335"></a></font></p>
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{"company-data": {"conformed-name": "Duke Energy Indiana, Inc.", "cik": "0000081020", "assigned-sic": "4911", "irs-number": "350594457", "state-of-incorporation": "IN", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-03543", "film-number": "13963289"}, "business-address": {"street1": "526 SOUTH CHURCH STREET", "street2": "EC03T", "city": "CHARLOTTE", "state": "NC", "zip": "28202", "phone": "704-594-6200"}, "mail-address": {"street1": "526 SOUTH CHURCH STREET", "street2": "EC03T", "city": "CHARLOTTE", "state": "NC", "zip": "28202"}, "former-company": [{"former-conformed-name": "PSI ENERGY INC", "date-changed": "19920703"}, {"former-conformed-name": "PUBLIC SERVICE CO OF INDIANA INC", "date-changed": "19900509"}]}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
July 8, 2013
DUKE ENERGY INDIANA, INC.
(Exact Name of Registrant as Specified in its Charter)
Indiana
1-3543
35-0594457
(State or Other Jurisdiction
of Incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
1000 East Main Street, Plainfield, Indiana  46168
(Address of Principal Executive Offices, including Zip code)
(704) 594-6200
(Registrant's telephone number, including area code)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240. 13e-4(c))
Item 8.01.   Other Events.
On July 8, 2013, Duke Energy Indiana, Inc. (the "Company") entered into an underwriting agreement, dated as of July 8, 2013, with Citigroup Global Markets Inc., J.P. Morgan Securities LLC, Scotia Capital (USA) Inc. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein (the "Underwriters"), pursuant to which the Company agreed to issue and sell to the Underwriters (i) $150,000,000 aggregate principal amount of the Company's First Mortgage Bonds, Series VVV, Floating Rate, Due July 11, 2016 (the "2016 Bonds") and (ii) $350,000,000 aggregate principal amount of the Company's First Mortgage Bonds, Series WWW, 4.90%, Due July 15, 2043 (the "2043 Bonds" and together with the 2016 Bonds, the "Bonds"). The Bonds will be issued under our Indenture of Mortgage or Deed of Trust, dated September 1, 1939, between the Company and Deutsche Bank National Trust Company, as Trustee, as amended and supplemented from time to time (the "Indenture"), including by the Sixty-Sixth Supplemental Indenture, dated as of July 11, 2013 (the "Supplemental Indenture").  The disclosure in this Item 8.01 is qualified in its entirety by the provisions of the Indenture, the Supplemental Indenture, which is filed as Exhibit 4.1 hereto, and the Underwriting Agreement, which is filed as Exhibit 99.1 hereto. Such exhibits are incorporated herein by reference. Also, in connection with the issuance and sale of the Bonds, the Company is filing a legal opinion regarding the validity of the Bonds as Exhibit 5.1 to this Form 8-K for the purpose of incorporating the opinion into the Company's Registration Statement No. 333-169633-02.
Item 9.01.      Financial Statements and Exhibits.
(d)  Exhibits
4.1
Sixty-Sixth Supplemental Indenture, dated as of July 11, 2013, between the Company and Deutsche Bank National Trust Company, as Trustee, providing for the issuance of the Bonds.
5.1
Opinion of Taft Stettinius & Hollister LLP regarding validity of the Bonds.
23.1
Consent of Taft Stettinius & Hollister LLP (included as part of Exhibit 5.1).
99.1
Underwriting Agreement, dated as of July 8, 2013, among the Company and Citigroup Global Markets Inc., J.P. Morgan Securities LLC, Scotia Capital (USA) Inc. and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, in connection with the Company's issuance and sale of the Bonds.
SIGNATURES
Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
DUKE   ENERGY INDIANA, INC.
Date:   July 11, 2013
By:
/s/   Robert T. Lucas III, Esq.
Name:
Robert   T. Lucas III, Esq.
Title:
Deputy   General Counsel and
Assistant   Corporate Secretary
2
EXHIBIT INDEX
Exhibit
Description
4.1
Sixty-Sixth   Supplemental Indenture, dated as of July 11, 2013, between the Company   and Deutsche Bank National Trust Company, as Trustee, providing for the   issuance of the Bonds.
5.1
Opinion   of Taft Stettinius & Hollister LLP regarding validity of the Bonds.
23.1
Consent   of Taft Stettinius & Hollister LLP (included as part of   Exhibit 5.1).
99.1
Underwriting   Agreement, dated as of July 8, 2013, among the Company and Citigroup   Global Markets Inc., J.P. Morgan Securities LLC, Scotia Capital (USA) Inc.   and Wells Fargo Securities, LLC, as representatives of the several   underwriters named therein, in connection with the Company's issuance and   sale of the Bonds.
3