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      Ameren 8-K dated November 3, 2006
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      AND EXCHANGE COMMISSION</font></div>
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      D.C. 20549</font></div>
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                8-K</font></div>
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      REPORT</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Pursuant
      to Section 13 or 15(d) of the</font></div>
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      Exchange Act of 1934</font></div>
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      of
      report (Date of earliest event reported):</font><font id="TAB2" style="COLOR: black; LETTER-SPACING: 27pt">&#160;</font><a name="ReportDate"/></div>
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              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">October
                31, 2006</font></div>
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                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Commission
                  File Number</u></font></div>
              </td>
              <td align="left" valign="top" width="29%" style="border-bottom: medium none;">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Exact
                  Name of Registrant as </font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Specified
                  in Charter;</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">State
                  of Incorporation;</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Address
                  and Telephone Number</u></font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              </td>
              <td align="left" valign="top" width="20%" style="border-bottom: medium none;">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">IRS
                  Employer</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman"><u>Identification
                  Number</u></font></div>
              </td>
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            <tr>
              <td align="left" valign="top" width="30%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">1-14756</font></div>
              </td>
              <td align="left" valign="top" width="29%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><a name="CFN"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Ameren
                  Corporation</font></a></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Missouri
                  Corporation)</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">1901
                  Chouteau Avenue</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">St.
                  Louis, Missouri 63103</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(314)
                  621-3222</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              </td>
              <td align="left" valign="top" width="20%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><a name="EIN"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">43-1723446</font></a></div>
              </td>
            </tr>
            <tr>
              <td align="left" valign="top" width="30%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">1-3672</font></div>
              </td>
              <td align="left" valign="top" width="29%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Central
                  Illinois Public Service Company</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Illinois
                  Corporation)</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">607
                  East Adams Street</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Springfield,
                  Illinois 62739</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(217)
                  523-3600</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
              </td>
              <td align="left" valign="top" width="20%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">37-0211380</font></div>
              </td>
            </tr>
            <tr>
              <td align="left" valign="top" width="30%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">333-56594</font></div>
              </td>
              <td align="left" valign="top" width="29%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Ameren
                  Energy Generating Company</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(Illinois
                  Corporation)</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">1901
                  Chouteau Avenue</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">St.
                  Louis, Missouri 63103</font></div>
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 9pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(314)
                  621-3222</font></div>
              </td>
              <td align="left" valign="top" width="20%">
                <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">37-1395586</font></div>
              </td>
            </tr>

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      <div align="left">&#160;&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">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:</font></div>
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&#160;]
      Written communications pursuant to Rule 425 under the Securities Act (17 CFR
      230.425)</font></div>
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      Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)</font></div>
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      Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
      Act
      (17 CFR 240.13e-4(c))</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify"><a name="ReportDate"/>&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">ITEM
      1.02
      Termination of a Material Definitive Agreement.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Reference
      is made to Note 14 - Related Party Transactions under Part II, Item 8 in the
      Annual Report on Form 10-K for the fiscal year ended December 31, 2005 and
      Note
      7 - Related Party Transactions under Part I, Item 1 in the Form 10-Q for the
      quarterly period ended June 30, 2006, of registrant Ameren Corporation
      (&#8220;Ameren&#8221;) and its registrant subsidiaries, Central Illinois Public Service
      Company, doing business as AmerenCIPS (&#8220;CIPS&#8221;), and Ameren Energy Generating
      Company (&#8220;Genco&#8221;) (collectively, the &#8220;registrants&#8221;), for a discussion of the
      electric power supply agreement (the &#8220;Genco-Marketing Company PSA&#8221;) between
      Genco and Ameren Energy Marketing Company (&#8220;Marketing Company&#8221;), an indirect
      subsidiary of Ameren and an affiliate of CIPS and Genco. Reference is also
      made
      to Risk Factors under Part I, Item 1A in the registrants&#8217; Annual Report on Form
      10-K for the fiscal year ended December 31, 2005 and Note 2 - Rate and
      Regulatory Matters under Part I, Item 1, Outlook under Part I, Item 2.
      Management&#8217;s Discussion and Analysis of Financial Condition and Results of
      Operations, and Risk Factors under Part II, Item 1A in the registrants&#8217; Form
      10-Q for the quarterly period ended June 30, 2006, for a discussion of power
      procurement after the current Illinois electric utility rate freeze expires
      on
      January 1, 2007 and power supply agreements expire on December 31, 2006. The
      Genco-Marketing Company PSA as last amended and restated on March 30, 2001
      (filed as Exhibit 10.1 to Ameren&#8217;s Form 10-Q for the quarterly period ended
      March 31, 2001) provides for the sale by Genco to Marketing Company of all
      of
      the energy and capacity available from Genco&#8217;s electric generating facilities.
      The Genco-Marketing Company PSA is used in substantial part to allow Marketing
      Company to obtain the energy and capacity it is obliged to provide to CIPS
      under
      a separate power supply agreement (the &#8220;Marketing Company-CIPS PSA&#8221;) between
      Marketing Company and CIPS (filed as Exhibit 10.2 to Ameren&#8217;s Form 10-Q for the
      quarterly period ended March 31, 2001). CIPS in turn uses this energy and
      capacity to serve its retail customer load and for other purposes. The Marketing
      Company-CIPS PSA will expire under its express terms on December 31,
      2006.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      Genco-Marketing Company PSA established no specific termination date for the
      agreement but provided either party the right to terminate it on one year&#8217;s
      notice. The Genco-Marketing Company PSA may be terminated earlier by mutual
      consent of the parties.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">With
      the
      December 31, 2006 expiration of the Marketing Company-CIPS PSA that is supported
      by energy and capacity supplied under the Genco-Marketing Company PSA, Genco
      and
      Marketing Company on October 31, 2006, mutually consented to waive the one
      year
      termination notice requirement of the Genco-Marketing Company PSA and agreed
      to
      terminate it on December 31, 2006. This action will require acceptance by the
      Federal Energy Regulatory Commission.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">ITEM
      2.02
      Results of Operations and Financial Condition.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On
      November 3, 2006, Ameren issued a press release announcing its earnings for
      the
      quarterly period ended September 30, 2006. The press release is attached as
      Exhibit 99.1 and is incorporated herein by reference. The information furnished
      pursuant to this Item 2.02, including Exhibit 99.1, shall not be deemed &#8220;filed&#8221;
for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange
      Act") or otherwise subject to the liabilities under that Section and shall
      not
      be deemed to be incorporated by reference into any filing of the registrants
      under the Securities Act of 1933 (the &#8220;Securities Act&#8221;) or the Exchange Act.
</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">The
      information contained in Exhibit 99.2 shall be deemed filed for purposes of
      Section 18 of the Exchange Act and shall be deemed to be incorporated by
      reference into any filing of Ameren (but not any of the other registrants)
      under
      the Securities Act or the Exchange Act.</font></div>
    <div>&#160;</div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">ITEM
      8.01
      Other Events.</font></div>
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    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">In
      its
      press release dated November 3, 2006, Ameren disclosed the following unaudited
      consolidated financial statements: Statement of Income for the three months
      and
      nine months ended September 30, 2006 and September 30, 2005, Statement of Cash
      Flows for the nine months ended September 30, 2006 and September 30, 2005 and
      Balance Sheet at September 30, 2006 and December 31, 2005. The foregoing
      unaudited consolidated financial statements are attached as Exhibit 99.2 and
      Ameren hereby incorporates such consolidated financial statements by reference
      into this Item 8.01 of this Current Report on Form 8-K.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">ITEM
        9.01
        Financial Statements and Exhibits.</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">(d)
        Exhibits</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">
        <div align="left">
          <table cellpadding="0" cellspacing="0" width="84%">

              <tr>
                <td align="left" valign="top" width="18%"><font size="2"><u>Exhibit
                  Number:</u><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">&#160;</font></font>&#160;</td>
                <td align="left" valign="top" width="65%">
                  <div><u><font size="2">Title:</font></u></div>
                  <div>&#160;</div>
                </td>
              </tr>
              <tr>
                <td align="left" valign="top" width="18%">
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.1</font></div>
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
                </td>
                <td align="left" valign="top" width="65%">
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                    release regarding earnings for the quarterly period ended </font></div>
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">September
                    30, 2006, issued on November 3, 2006 by Ameren </font></div>
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                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
                </td>
              </tr>
              <tr>
                <td align="left" valign="top" width="18%">
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">99.2
                    </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Symbol"><sup>*</sup></font><font style="DISPLAY: inline">&#160;</font></div>
                </td>
                <td align="left" valign="top" width="65%">
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                    Corporation&#8217;s Unaudited Consolidated Statement of </font></div>
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Income
                    for the three months and nine months ended </font></div>
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                    2006 and September 30, 2005, Unaudited </font></div>
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Consolidated
                    Statement of Cash Flows for the nine months </font></div>
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">ended
                    September 30, 2006 and September 30, 2005 and </font></div>
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Unaudited
                    Consolidated Balance Sheet at September 30, 2006 </font></div>
                  <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">and
                    December 31, 2005.</font></div>
                </td>
              </tr>

          </table>
        </div>
        <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">_______________________________________________</font></div>
      </div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font id="TAB1" style="MARGIN-LEFT: 36pt"></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">This
      combined Form 8-K is being filed separately by each registrant. Information
      contained herein relating to any individual registrant has been filed by such
      registrant on its own behalf. No registrant makes any representation as to
      information relating to any other registrant.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left">
      <hr style="COLOR: black" align="left" size="1" width="20%">
      <div>
        <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Symbol"><sup>*</sup></font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">
          Exhibit
          99.2 is intended to be deemed filed rather than furnished pursuant to General
          Instructions B.2 of Form 8-K.</font></div>
      </div><br></div>
    <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
      <div id="FTR">&#160;</div>
      <div id="PGBRK" style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt">
        <div id="FTR">
          <div id="GLFTR" style="WIDTH: 100%" align="left">
          </div>
        </div>
        <div id="PN" style="PAGE-BREAK-AFTER: always">
          <div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman">3</font></div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
        </div>
        <div id="HDR"><br>
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            to the requirements of the Securities Exchange Act of 1934, each registrant
            has
            duly caused this report to be signed on its behalf by the undersigned
            thereunto
            duly authorized. The signature for each undersigned company shall be
            deemed to
            relate only to matters having reference to such company or its
            subsidiaries.</font></div>
          <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
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              Martin J.
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              Martin J.
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              Martin J.
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          <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
        </div>
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              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; LINE-HEIGHT: 1.25; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">September
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            Exhibit
            99.2 is intended to be deemed filed rather than furnished pursuant to
            General
            Instructions B.2 of Form 8-K.</font></div>
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[{"type": "8-K", "sequence": "1", "filename": "ameren8k11032006.htm", "description": "AMEREN 8-K DATED NOVEMBER 3, 2006", "secsgml_size_bytes": 54145}]
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Ameren 8-K dated November 3, 2006
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):
October
                31, 2006
Commission
                  File Number
Exact
                  Name of Registrant as
Specified
                  in Charter;
State
                  of Incorporation;
Address
                  and Telephone Number
IRS
                  Employer
Identification
                  Number
1-14756
Ameren
                  Corporation
(Missouri
                  Corporation)
1901
                  Chouteau Avenue
St.
                  Louis, Missouri 63103
(314)
                  621-3222
43-1723446
1-3672
Central
                  Illinois Public Service Company
(Illinois
                  Corporation)
607
                  East Adams Street
Springfield,
                  Illinois 62739
(217)
                  523-3600
37-0211380
333-56594
Ameren
                  Energy Generating Company
(Illinois
                  Corporation)
1901
                  Chouteau Avenue
St.
                  Louis, Missouri 63103
(314)
                  621-3222
37-1395586
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:
[
 ]
      Written communications pursuant to Rule 425 under the Securities Act (17 CFR
      230.425)
[ 
]
      Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)
[ 
]
      Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
      Act
      (17 CFR 240.14d-2(b))
[ 
]
      Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
      Act
      (17 CFR 240.13e-4(c))
ITEM
      1.02
      Termination of a Material Definitive Agreement.
Reference
      is made to Note 14 - Related Party Transactions under Part II, Item 8 in the
      Annual Report on Form 10-K for the fiscal year ended December 31, 2005 and
      Note
      7 - Related Party Transactions under Part I, Item 1 in the Form 10-Q for the
      quarterly period ended June 30, 2006, of registrant Ameren Corporation
      ("Ameren") and its registrant subsidiaries, Central Illinois Public Service
      Company, doing business as AmerenCIPS ("CIPS"), and Ameren Energy Generating
      Company ("Genco") (collectively, the "registrants"), for a discussion of the
      electric power supply agreement (the "Genco-Marketing Company PSA") between
      Genco and Ameren Energy Marketing Company ("Marketing Company"), an indirect
      subsidiary of Ameren and an affiliate of CIPS and Genco. Reference is also
      made
      to Risk Factors under Part I, Item 1A in the registrants' Annual Report on Form
      10-K for the fiscal year ended December 31, 2005 and Note 2 - Rate and
      Regulatory Matters under Part I, Item 1, Outlook under Part I, Item 2.
      Management's Discussion and Analysis of Financial Condition and Results of
      Operations, and Risk Factors under Part II, Item 1A in the registrants' Form
      10-Q for the quarterly period ended June 30, 2006, for a discussion of power
      procurement after the current Illinois electric utility rate freeze expires
      on
      January 1, 2007 and power supply agreements expire on December 31, 2006. The
      Genco-Marketing Company PSA as last amended and restated on March 30, 2001
      (filed as Exhibit 10.1 to Ameren's Form 10-Q for the quarterly period ended
      March 31, 2001) provides for the sale by Genco to Marketing Company of all
      of
      the energy and capacity available from Genco's electric generating facilities.
      The Genco-Marketing Company PSA is used in substantial part to allow Marketing
      Company to obtain the energy and capacity it is obliged to provide to CIPS
      under
      a separate power supply agreement (the "Marketing Company-CIPS PSA") between
      Marketing Company and CIPS (filed as Exhibit 10.2 to Ameren's Form 10-Q for the
      quarterly period ended March 31, 2001). CIPS in turn uses this energy and
      capacity to serve its retail customer load and for other purposes. The Marketing
      Company-CIPS PSA will expire under its express terms on December 31,
      2006.
The
      Genco-Marketing Company PSA established no specific termination date for the
      agreement but provided either party the right to terminate it on one year's
      notice. The Genco-Marketing Company PSA may be terminated earlier by mutual
      consent of the parties.
With
      the
      December 31, 2006 expiration of the Marketing Company-CIPS PSA that is supported
      by energy and capacity supplied under the Genco-Marketing Company PSA, Genco
      and
      Marketing Company on October 31, 2006, mutually consented to waive the one
      year
      termination notice requirement of the Genco-Marketing Company PSA and agreed
      to
      terminate it on December 31, 2006. This action will require acceptance by the
      Federal Energy Regulatory Commission.
ITEM
      2.02
      Results of Operations and Financial Condition.
On
      November 3, 2006, Ameren issued a press release announcing its earnings for
      the
      quarterly period ended September 30, 2006. The press release is attached as
      Exhibit 99.1 and is incorporated herein by reference. The information furnished
      pursuant to this Item 2.02, including Exhibit 99.1, shall not be deemed "filed"
for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange
      Act") or otherwise subject to the liabilities under that Section and shall
      not
      be deemed to be incorporated by reference into any filing of the registrants
      under the Securities Act of 1933 (the "Securities Act") or the Exchange Act.
The
      information contained in Exhibit 99.2 shall be deemed filed for purposes of
      Section 18 of the Exchange Act and shall be deemed to be incorporated by
      reference into any filing of Ameren (but not any of the other registrants)
      under
      the Securities Act or the Exchange Act.
2
ITEM
      8.01
      Other Events.
In
      its
      press release dated November 3, 2006, Ameren disclosed the following unaudited
      consolidated financial statements: Statement of Income for the three months
      and
      nine months ended September 30, 2006 and September 30, 2005, Statement of Cash
      Flows for the nine months ended September 30, 2006 and September 30, 2005 and
      Balance Sheet at September 30, 2006 and December 31, 2005. The foregoing
      unaudited consolidated financial statements are attached as Exhibit 99.2 and
      Ameren hereby incorporates such consolidated financial statements by reference
      into this Item 8.01 of this Current Report on Form 8-K.
ITEM
        9.01
        Financial Statements and Exhibits.
(d)
        Exhibits
Exhibit
                  Number:
Title:
99.1
Press
                    release regarding earnings for the quarterly period ended
September
                    30, 2006, issued on November 3, 2006 by Ameren
Corporation.
99.2
*
Ameren
                    Corporation's Unaudited Consolidated Statement of
Income
                    for the three months and nine months ended
September 30,
                    2006 and September 30, 2005, Unaudited
Consolidated
                    Statement of Cash Flows for the nine months
ended
                    September 30, 2006 and September 30, 2005 and
Unaudited
                    Consolidated Balance Sheet at September 30, 2006
and
                    December 31, 2005.
_______________________________________________
This
      combined Form 8-K is being filed separately by each registrant. Information
      contained herein relating to any individual registrant has been filed by such
      registrant on its own behalf. No registrant makes any representation as to
      information relating to any other registrant.
*
Exhibit
          99.2 is intended to be deemed filed rather than furnished pursuant to General
          Instructions B.2 of Form 8-K.
3
SIGNATURE
Pursuant
            to the requirements of the Securities Exchange Act of 1934, each registrant
            has
            duly caused this report to be signed on its behalf by the undersigned
            thereunto
            duly authorized. The signature for each undersigned company shall be
            deemed to
            relate only to matters having reference to such company or its
            subsidiaries.
AMEREN
              CORPORATION
(Registrant)
/s/
              Martin J.
              Lyons
Martin
              J.
              Lyons
Vice
              President and Controller
(Principal
              Accounting Officer)
CENTRAL
              ILLINOIS PUBLIC SERVICE COMPANY
(Registrant)
/s/
              Martin J.
              Lyons
Martin
              J.
              Lyons
Vice
              President and Controller
(Principal
              Accounting Officer)
AMEREN
              ENERGY GENERATING COMPANY
(Registrant)
/s/
              Martin J.
              Lyons
Martin
              J.
              Lyons
Vice
              President and Controller
(Principal
              Accounting Officer)
Date:
            November 3, 2006
4
Exhibit
      Index
Exhibit
              Number:
Title:
99.1
Press
                release regarding earnings for the quarterly period ended
September
                30, 2006, issued on November 3, 2006 by Ameren
Corporation.
99.2
*
Ameren
                Corporation's Unaudited Consolidated Statement of
Income
                for the three months and nine months ended
September 30,
                2006 and September 30, 2005, Unaudited
Consolidated
                Statement of Cash Flows for the nine months
ended
                September 30, 2006 and September 30, 2005 and
Unaudited
                Consolidated Balance Sheet at September 30, 2006
and
                December 31, 2005.
*
Exhibit
            99.2 is intended to be deemed filed rather than furnished pursuant to
            General
            Instructions B.2 of Form 8-K.
5