<html>

  <head>
    <title>ameren8k07232007.htm</title>
<!-- Licensed to: ameren-->
<!-- Document Created using EDGARizer 4.0.1.0 -->
<!-- Copyright 2007 EDGARfilings, Ltd., an IEC company.-->
<!-- All rights reserved EDGARfilings.com -->
</head>
  <body bgcolor="#ffffff">
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">UNITED
      STATES</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">SECURITIES
      AND EXCHANGE COMMISSION</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Washington,
      D.C.&#160;&#160;20549</font></div>
    <div>
      <table cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td valign="top" width="24%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;
              </font>
              <hr style="COLOR: black" align="center" noshade size="2" width="20%">
            </td>
          </tr>
          <tr>
            <td valign="top" width="24%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">FORM
                8-K</font></div>
            </td>
          </tr>
          <tr>
            <td valign="top" width="24%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">CURRENT
      REPORT</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Securities
      Exchange Act of 1934</font></div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Date
      of
      report (Date of earliest event reported):<a name="ReportDate"/></font></div>
    <div>
      <table cellpadding="0" cellspacing="0" width="100%">

          <tr>
            <td valign="top" width="24%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">July
                23, 2007</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><a name="Registrant"><br></a></div>
    <div align="center">
      <table cellpadding="0" cellspacing="0" width="86%">

          <tr>
            <td align="justify" valign="top" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><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="26%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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: 0pt; 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: 0pt; 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: 0pt; 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>&#160;</div>
            </td>
            <td align="justify" valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><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; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><u>Identification
                Number</u></font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><a name="jurisdiction">1-14756</a></font></div>
            </td>
            <td align="left" valign="top" width="26%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><a name="cfn">Ameren
                Corporation</a></font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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: 0pt; 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: 0pt; 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: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(314)
                621-3222</font></div>
              <div>&#160;</div>
            </td>
            <td align="justify" valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><a name="ein">43-1723446</a></font></div>
            </td>
          </tr>
          <tr>
            <td align="justify" valign="top" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">1-3672</font></div>
            </td>
            <td align="left" valign="top" width="26%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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: 0pt; 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: 0pt; 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: 0pt; 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: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(217)
                523-3600</font></div>
              <div>&#160;</div>
            </td>
            <td align="justify" valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><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="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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="26%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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: 0pt; 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: 0pt; 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: 0pt; 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: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(314)
                621-3222</font></div>
              <div>&#160;</div>
            </td>
            <td align="justify" valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">37-1395586</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">2-95569</font></div>
            </td>
            <td align="left" valign="top" width="26%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">CILCORP
                Inc.</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">300
                Liberty Street</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Peoria,
                Illinois 61602</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(309)
                677-5271</font></div>
              <div>&#160;</div>
            </td>
            <td align="justify" valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">37-1169387</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">1-2732</font></div>
            </td>
            <td align="left" valign="top" width="26%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Central
                Illinois Light Company</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">300
                Liberty Street</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Peoria,
                Illinois 61602</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(309)
                677-5271</font></div>
              <div>&#160;</div>
            </td>
            <td align="justify" valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">37-0211050</font></div>
            </td>
          </tr>
          <tr>
            <td align="left" valign="top" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">1-3004</font></div>
            </td>
            <td align="left" valign="top" width="26%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Illinois
                Power Company</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">370
                South Main Street</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Decatur,
                Illinois 62523</font></div>
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(217)
                424-6600</font></div>
              <div>&#160;</div>
            </td>
            <td align="justify" valign="top" width="27%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">37-0344645</font></div>
            </td>
          </tr>

      </table>
    </div>
    <div align="center">&#160;</div>
    <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#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">
        </div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">
        </div>
      </div>
    </div>
    <div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; 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 registrants under any of the following
        provisions:</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><font id="TAB1" style="MARGIN-LEFT: 13.5pt;"></font>[&#160;&#160;]
        Written communications
        pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><font id="TAB1" style="MARGIN-LEFT: 13.5pt;"></font>[&#160;&#160;]
        Soliciting material
        pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><font id="TAB1" style="MARGIN-LEFT: 13.5pt;"></font>[&#160;&#160;]
        Pre-commencement
        communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
        240.14d-2(b))</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><font id="TAB1" style="MARGIN-LEFT: 13.5pt;"></font>[&#160;&#160;]
        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; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><strong>ITEM
        8.01&#160;&#160;Other Events.</strong></font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Reference
        is made to Note 3 &#8211; Rate and Regulatory Matters to our financial statements
        under Part II, Item 8; Outlook and Liquidity and Capital Resources under
        Part
        II, Item 7. Management&#8217;s Discussion and Analysis of Financial Condition and
        Results of Operations; and Part I, Item 1A. Risk Factors, all in the Form
        10-K
        for the year ended December 31, 2006; and Note 2 &#8211; Rate and Regulatory Matters
        to our financial statements under Part I, Item&#160;1; Outlook and Liquidity and
        Capital Resources under Part I, Item 2, Management&#8217;s Discussion and Analysis of
        Financial Condition and Results of Operations; and Part II, Item 1A. Risk
        Factors, all in the Form 10-Q for the quarterly period ended March 31, 2007,
        of
        registrant Ameren Corporation (&#8220;Ameren&#8221;) and its registrant subsidiaries,
        Central Illinois Public Service Company, doing business as AmerenCIPS (&#8220;CIPS&#8221;),
        Ameren Energy Generating Company (&#8220;Genco&#8221;), CILCORP Inc. (&#8220;CILCORP&#8221;), Central
        Illinois Light Company, doing business as AmerenCILCO (&#8220;CILCO&#8221;), and Illinois
        Power Company, doing business as AmerenIP (&#8220;IP&#8221;) (collectively, the
&#8220;registrants&#8221;), for a discussion of potential rate rollback and freeze
        legislation applicable to CIPS, CILCO and IP.&#160;&#160;CIPS, CILCO and IP are
        collectively referred to herein as the &#8220;Ameren Illinois
        utilities.&#8221;&#160;&#160;Reference is also made to the Current Reports on Form 8-K
        filed by Ameren and certain of its registrant subsidiaries on March 15, 2007,
        April&#160;20, 2007 and April&#160;25, 2007.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">The
        registrants believe an agreement in principle has been reached among parties
        in
        Illinois to address the increase in electric rates following the January
        2007
        expiration of a nearly decade-long rate freeze in Illinois.&#160;&#160;The
        agreement in principle also addresses the future power procurement process
        in
        Illinois. The agreement is the result of many months of negotiations among
        leaders of the House of Representatives and Senate in Illinois, the office
        of
        the Illinois Attorney General, Ameren, on behalf of its affiliates Ameren
        Energy
        Marketing Company, Genco and AmerenEnergy Resources Generating Company, a
        subsidiary of CILCO (&#8220;AERG&#8221;), the Ameren Illinois utilities, Exelon Corporation
        (&#8220;Exelon&#8221;), on behalf of Exelon Generation Company LLC, Commonwealth Edison
        Company, Exelon&#8217;s Illinois electric utility subsidiary, Dynegy Holdings, Inc.,
        Midwest Generation, LLC, and MidAmerican Energy Company. Terms of the agreement,
        which will include a comprehensive rate relief and customer assistance program,
        are expected to be set forth in legislation, in a letter to the leaders of
        the
        Illinois General Assembly and the Illinois Attorney General, in a release
        and
        settlement agreement with the Illinois Attorney General and in funding
        agreements among the parties contributing to the rate relief and assistance
        programs. We expect these documents to be completed this week.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">The
        comprehensive program would provide approximately $1 billion of funding for
        rate
        relief for certain electric customers in Illinois, including $488 million
        to
        customers of the Ameren Illinois utilities.&#160;&#160;Pursuant to the rate
        relief program, the Ameren Illinois utilities, Genco and AERG would make
        aggregate contributions of $150 million over a four-year period, with $60
        million coming from the Ameren Illinois utilities (CIPS - $21 million; CILCO
        -
        $11 million; IP - $28 million), $62 million from Genco and $28 million from
        AERG.&#160;&#160;Below is a summary of the total customer relief and assistance
        to be provided to the customers of the Ameren Illinois utilities, the Ameren
        Illinois utilities&#8217;, Genco&#8217;s and AERG&#8217;s portion of the funding that is expected
        to be disbursed and the expected charges to earnings as a result of the program
        and agreement:</font></div>&#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;">-2-</font></div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">
        </div>
      </div>
    </div>
    <div align="left">
      <table cellpadding="0" cellspacing="0" width="66%">

          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="31%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="25%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="22%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Estimated</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="31%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Total
                Relief/Assistance to</font></div>
            </td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="25%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Ameren
                Subsidiaries&#8217;</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="22%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Ameren
                Earnings</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="31%" style="BORDER-BOTTOM: black 2px solid">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Ameren
                Illinois Customers</font></div>
            </td>
            <td valign="bottom" width="2%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="25%" style="BORDER-BOTTOM: black 2px solid">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Funding
                <font style="DISPLAY: inline; FONT-SIZE: 10pt;"><sup>(a)</sup></font></font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="1%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="22%" style="BORDER-BOTTOM: black 2px solid">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Per
                Share Impact<font style="DISPLAY: inline; FONT-SIZE: 10pt;"><sup>
                (b)</sup></font></font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="31%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="25%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td colspan="2" valign="bottom" width="22%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td align="left" valign="bottom" width="14%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">2007</font></div>
            </td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">$</font></td>
            <td align="right" valign="bottom" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">253,000,000</font></div>
            </td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">$</font></td>
            <td align="right" valign="bottom" width="23%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">86,000,000</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 45pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">26<font style="DISPLAY: inline; FONT-FAMILY: times new roman;">&#162;</font></font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td align="left" valign="bottom" width="14%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">2008</font></div>
            </td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">132,000,000</font></div>
            </td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">37,000,000</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 45pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">11</font></font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 45pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td align="left" valign="bottom" width="14%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">2009</font></div>
            </td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;
                97,000,000 </font></div>
            </td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">25,000,000</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 45pt; MARGIN-RIGHT: 0pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;
                7</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 45pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td align="left" valign="bottom" width="14%" style="PADDING-BOTTOM: 2px">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">2010</font></div>
            </td>
            <td align="left" valign="bottom" width="2%" style="BORDER-BOTTOM: black 2px solid"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%" style="BORDER-BOTTOM: black 2px solid">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">6,000,000</font></div>
            </td>
            <td align="left" valign="bottom" width="2%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%" style="BORDER-BOTTOM: black 2px solid"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%" style="BORDER-BOTTOM: black 2px solid">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;
                2,000,000</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="1%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%" style="BORDER-BOTTOM: black 2px solid">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 45pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;
                1</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%" style="PADDING-BOTTOM: 2px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td align="left" valign="bottom" width="14%" style="PADDING-BOTTOM: 4px">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Total</font></div>
            </td>
            <td align="left" valign="bottom" width="2%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">$</font></td>
            <td align="right" valign="bottom" width="29%" style="BORDER-BOTTOM: black 4px double">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 27pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">488,000,000</font></div>
            </td>
            <td align="left" valign="bottom" width="2%" style="PADDING-BOTTOM: 4px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%" style="BORDER-BOTTOM: black 4px double"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">$</font></td>
            <td align="right" valign="bottom" width="23%" style="BORDER-BOTTOM: black 4px double">
              <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 18pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;
                150,000,000</font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="1%" style="PADDING-BOTTOM: 4px"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" colspan="2" valign="bottom" width="22%" style="BORDER-BOTTOM: black 4px double">
              <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 45pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">45<font style="DISPLAY: inline; FONT-FAMILY: times new roman;">&#162;</font></font></div>
            </td>
            <td align="left" nowrap valign="bottom" width="4%" style="PADDING-BOTTOM: 4px">&#160;</td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="16%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="6%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>
          <tr>
            <td valign="bottom" width="14%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="29%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="2%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="23%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="1%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" valign="bottom" width="16%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="right" valign="bottom" width="6%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
            <td align="left" nowrap valign="bottom" width="4%"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">&#160;</font></td>
          </tr>

      </table>
    </div>
    <div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(a)&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Includes
                  a $4.5 million contribution towards funding of a newly created
                  Illinois
                  Power Agency (&#8220;IPA&#8221;).</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(b)&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Includes
                  estimated cost of forgiveness of outstanding customer late payment
                  fees.</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Other
        electric generators and utilities in Illinois would contribute $851 million
        to
        the comprehensive rate relief and customer assistance program. Contributions
        by
        the other electric generators (the &#8220;Generators&#8221;) and utilities to the
        comprehensive program would be subject to funding agreements.&#160;&#160;Under
        these agreements, at the end of each month, the Ameren Illinois utilities would
        bill the Generators for their proportionate share of that month&#8217;s rate relief
        and assistance, which would be due in 30 days. If any escrow funds have been
        provided by the Generators, these funds would be drawn prior to seeking
        reimbursement from the Generators.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">The
        rate
        relief program would preserve existing rates and rate structures and the
        Ameren
        Illinois utilities would continue to have the right to file new electric
        delivery service rate cases with the Illinois Commerce Commission (&#8220;ICC&#8221;) at the
        respective utility&#8217;s discretion. The redesign of all-electric customers&#8217; rates
        is still subject to an ongoing case with the ICC designed to reduce seasonal
        fluctuations for residential customers who use large amounts of electricity
        while allowing utilities to fully recover costs. The agreement provides that
        if
        legislation is enacted in Illinois before August 1, 2011, freezing or reducing
        retail electric rates, or imposing or authorizing a new tax, special assessment
        or fee on the generation of electricity, then the remaining commitments would
        expire and any funds set aside in support of those commitments would be refunded
        to the utilities and Generators.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">As
        part
        of the agreement, the current reverse auction used for power procurement
        in
        Illinois would be discontinued immediately and replaced with a new power
        procurement process. In 2008, utilities would contract for necessary baseload,
        intermediate and peaking power requirements through a request-for-proposal
        process, subject to ICC review and approval. Also as part of the agreement,
        existing supply contracts from the September 2006 reverse auction would remain
        in place.&#160;&#160;As part of the rate relief program, the Ameren Illinois
        utilities would finalize financial contracts with Ameren Energy Marketing
        Company (for the benefit of Genco and AERG), subject to the enactment of
        enabling legislation, to lock-in prices for 400 to 1,000 megawatts annually
        of
        their baseload power requirements from 2008 through 2012 at relevant market
        prices.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">For
        June
        2009 and thereafter, power procurement would be accomplished through competitive
        requests for proposals to supply the separate baseload, intermediate and
        peaking
        power needs of the utilities instead of the year-round requirements previously
        procured through a reverse auction. The power procurement process that is
        expected to be implemented would require the Ameren Illinois utilities to
        develop an annual Procurement Plan (&#8220;Plan&#8221;).&#160;&#160;Each Plan would govern a
        utility&#8217;s procurement of power to meet the expected load requirements that would
        not be met by pre-existing contracts or generation facilities. Subject to
        ICC
        approval, the Ameren Illinois utilities would be allowed to lease, or invest
        in,
        generation facilities. The objective of each Plan would be to ensure adequate,
        reliable, affordable, efficient, and environmentally sustainable electric
        service at the lowest total cost over time taking into account any benefits
        of
        price stability for the utilities&#8217; eligible retail customers.&#160;&#160;The
        power procurement process provides that each Plan be submitted to the ICC
        for
        initial approval; if approved, the final design and implementation of a Plan
        would be overseen by an independent procurement administrator and procurement
        monitor selected by the IPA.&#160;&#160;The IPA would have authority to assist
        in the procurement of electric power for residential and nonresidential
        customers beginning in June 2009.&#160;&#160;Winning proposals would be selected
        on the basis of price, compared for reasonableness to a market benchmark
        developed by the procurement administrator and procurement monitor, and approved
        by the ICC.</font></div>
    </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">
        <div id="GLHDR" style="WIDTH: 100%" align="right">
        </div>
      </div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">The
        power
        procurement process would provide that each electric utility in Illinois
        file
        proposed tariffs with the ICC, which would be designed to pass-through to
        customers the costs of procuring electric power supply with no mark-up on
        the
        price paid by the utilities, plus any reasonable costs that the utilities
        incurred in arranging and providing for the supply of electric
        power.&#160;&#160;All such procurement costs would be deemed to have been
        prudently incurred and recoverable through rates.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">The
        agreement provides that the Ameren Illinois utilities would have a right
        to
        maintain membership in a Federal Energy Regulatory Commission-approved regional
        transmission organization of their choice for a period of at least 15
        years.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">The
        agreement also includes a commitment to energy conservation programs designed
        to
        reduce energy consumption through increased energy efficiency and demand
        response. In addition, 2% of the utilities&#8217; electricity would be procured from
        renewable sources beginning June 1, 2008, with that percentage increasing
        in
        subsequent years, subject to limits on customer rate impacts. The provision
        for
        full and timely cost recovery of the cost of these commitments is also included
        in the agreement.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Finally,
        the agreement provides that all pending litigation and regulatory actions
        by the
        Office of the Illinois Attorney General relating to the reverse auction
        procurement process, which was used to determine market-based rates effective
        January 1, 2007, and the electric space heating marketing practices of the
        Ameren Illinois utilities be withdrawn with prejudice. The litigation and
        regulatory actions include those filed by the Illinois Office of the Attorney
        General with the Federal Energy Regulatory Commission, the ICC, the United
        States Court of Appeals for the District of Columbia Circuit and the Circuit
        Court of the First Judicial Circuit, Jackson County, Illinois and the Appellate
        Court of Illinois, Second Judicial Circuit.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">In
        order
        for the agreement, including the comprehensive rate relief and customer
        assistance program, to become effective, documents must be finalized and
        executed, tariffs must be filed with the ICC and legislation must be passed
        by
        the Illinois House of Representatives and Illinois Senate, and signed by
        the
        Illinois governor.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; 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><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">This
        combined Form 8-K is being filed separately by Ameren, CIPS, Genco, CILCORP,
        CILCO and IP.&#160;&#160;Information contained herein relating to any individual
        registrant has been filed by such registrant on its own behalf.&#160;&#160;No
        registrant makes any representation as to information relating to any other
        registrant.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>REGULATION
        G STATEMENT</u></font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Ameren
        has presented certain information in this report on a diluted cents per share
        basis. These diluted per share amounts reflect certain factors that are expected
        to directly impact Ameren&#8217;s total earnings per share. Ameren believes this
        information is useful because it enables readers to better understand the
        impact
        of these factors on Ameren&#8217;s results of operations and earnings per
        share.</font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>FORWARD-LOOKING
        STATEMENTS</u></font></div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Statements
        in this report not based on historical facts are considered &#8220;forward-looking&#8221;
and, accordingly, involve risks and uncertainties that could cause actual
        results to differ materially from those discussed.&#160;&#160;Although such
        forward-looking statements have been made in good faith and are based on
        reasonable assumptions, there is no assurance that the expected results will
        be
        achieved.&#160;&#160;These statements include (without limitation) statements as
        to future expectations, beliefs, plans, strategies, objectives, events,
        conditions, and financial performance.&#160;&#160;In connection with the &#8220;safe
        harbor&#8221; provisions of the Private Securities Litigation Reform Act of 1995, we
        are providing this cautionary statement to identify important factors that
        could
        cause actual results to differ materially from those anticipated.&#160;&#160;The
        following factors, in addition to those discussed elsewhere in this report
        and
        in our other filings with the Securities and Exchange Commission, could cause
        actual results to differ materially from management expectations suggested
        in
        such forward-looking statements:</font></div>
      <div><br></div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">regulatory
                  or legislative actions, including changes in regulatory policies
                  and
                  ratemaking determinations, such as the failure of the Illinois
                  General
                  Assembly and Illinois governor to enact legislation implementing
                  </font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>&#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;">-4-</font></div>
          <div style="WIDTH: 100%; TEXT-ALIGN: center">
            <hr style="COLOR: black" noshade size="2">
          </div>
        </div>
        <div id="HDR">
          <div id="GLHDR" style="WIDTH: 100%" align="right">
          </div>
        </div>
      </div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">&#160;</font></td>
              <td><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">the
                agreement in principle, including the comprehensive rate relief program,
                or the enactment of legislation rolling back and freezing electric
                rates
                at 2006 levels or imposing a generation &#8220;tax&#8221; on Genco, AERG and Electric
                Energy, Inc. or similar actions that impair the full and timely recovery
                of costs in Illinois;</font></td>
            </tr>

        </table>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">changes
                  in laws and other governmental
                  actions;</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">disruptions
                  of the capital markets or other events that make access to necessary
                  capital more difficult or costly;</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">the
                  impact of the adoption of new accounting standards and the application
                  of
                  appropriate technical accounting rules and
                  guidance;</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">actions
                  of credit rating agencies and the effects of such
                  actions;</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">the
                  inability of our counterparties and affiliates to meet their obligations
                  with respect to contracts and financial instruments;
                  and</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div>
        <table cellpadding="0" cellspacing="0" id="list" width="100%">

            <tr valign="top">
              <td align="right" style="WIDTH: 36pt">
                <div><font style="DISPLAY: inline; FONT-SIZE: 10pt;" face="Symbol, serif">&#183;&#160;&#160;</font></div>
              </td>
              <td>
                <div style="MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">legal
                  and administrative proceedings.</font></div>
              </td>
            </tr>

        </table>
      </div>
      <div><br></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Given
        these uncertainties, undue reliance should not be placed on these
        forward-looking statements.&#160;&#160;Except to the extent required by the
        federal securities laws, we undertake no obligation to update or revise publicly
        any forward-looking statements to reflect new information or future
        events.</font></div>
    </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;">-5-</font></div>
        <div style="WIDTH: 100%; TEXT-ALIGN: center">
          <hr style="COLOR: black" noshade size="2">
        </div>
      </div>
      <div id="HDR">
        <div id="GLHDR" style="WIDTH: 100%" align="right">
        </div>
      </div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">SIGNATURES</font></div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">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.&#160;&#160;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; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">AMEREN
      CORPORATION</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Registrant)</font></div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 342pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>/s/
      Martin J.
      Lyons&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
</u></font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Martin
      J.
      Lyons</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Vice
      President and Controller</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Principal
      Accounting Officer)</font></div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; 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: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Registrant)</font></div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 342pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>/s/
        Martin J.
        Lyons&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
</u></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Martin
        J.
        Lyons</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Vice
        President and Controller</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Principal
        Accounting Officer)</font></div>
      <div>&#160;</div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; 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: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Registrant)</font></div>
    <div>&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 342pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>/s/
        Martin J.
        Lyons&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
</u></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Martin
        J.
        Lyons</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Vice
        President and Controller</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Principal
        Accounting Officer)</font></div>
      <div>&#160;</div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">CILCORP
      INC.</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Registrant)</font></div>
    <div>&#160;</div>
    <div>
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 342pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>/s/
        Martin J.
        Lyons&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
</u></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Martin
        J.
        Lyons</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Vice
        President and Controller</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Principal
        Accounting Officer)</font></div>
      <div>&#160;</div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">CENTRAL
      ILLINOIS LIGHT COMPANY</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Registrant)</font></div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 342pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>/s/
        Martin J.
        Lyons&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
</u></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Martin
        J.
        Lyons</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Vice
        President and Controller</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Principal
        Accounting Officer)</font></div>
      <div>&#160;</div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">ILLINOIS
      POWER COMPANY</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Registrant)</font></div>
    <div><br></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">
      <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 342pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><u>/s/
        Martin J.
        Lyons&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
</u></font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Martin
        J.
        Lyons</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Vice
        President and Controller</font></div>
      <div style="DISPLAY: block; MARGIN-LEFT: 207pt; TEXT-INDENT: 135pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">(Principal
        Accounting Officer)</font></div>
      <div><br><br>&#160;</div>
    </div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Date:&#160;&#160;July
      23, 2007</font></div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>
    <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">-6-</font></div>
  </body>
</html>
[{"type": "8-K", "sequence": "1", "filename": "ameren8k07232007.htm", "description": "AMEREN 8-K DATED JULY 23, 2007", "secsgml_size_bytes": 86459}]
[{"company-data": {"conformed-name": "CENTRAL ILLINOIS LIGHT CO", "cik": "0000018651", "assigned-sic": "4931", "irs-number": "370211050", "state-of-incorporation": "IL", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-02732", "film-number": "07993098"}, "business-address": {"street1": "300 LIBERTY ST", "city": "PEORIA", "state": "IL", "zip": "61602", "phone": "309-677-5230"}, "mail-address": {"street1": "300 LIBERTY STREET", "city": "PEORIA", "state": "IL", "zip": "61602"}}, {"company-data": {"conformed-name": "AMERENENERGY GENERATING CO", "cik": "0001135361", "assigned-sic": "4911", "irs-number": "371395586", "state-of-incorporation": "IL", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-56594", "film-number": "07993099"}, "business-address": {"street1": "1901 CHOUTEAU AVENUE", "city": "ST LOUIS", "state": "MO", "zip": "63103", "phone": "314-621-3222"}, "mail-address": {"street1": "1901 CHOUTEAU AVENUE", "city": "ST LOUIS", "state": "MO", "zip": "63103"}}, {"company-data": {"conformed-name": "CENTRAL ILLINOIS PUBLIC SERVICE CO", "cik": "0000018654", "assigned-sic": "4931", "irs-number": "370211380", "state-of-incorporation": "IL", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-03672", "film-number": "07993100"}, "business-address": {"street1": "607 E ADAMS ST", "city": "SPRINGFIELD", "state": "IL", "zip": "62739", "phone": "217-523-3600"}, "mail-address": {"street1": "CENTRAL ILLINOIS PUBLIC SERVICE CO", "street2": "607 E ADAMS ST", "city": "SPRINGFIELD", "state": "IL", "zip": "62739"}}, {"company-data": {"conformed-name": "AMEREN CORP", "cik": "0001002910", "assigned-sic": "4931", "irs-number": "431723446", "state-of-incorporation": "MO", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-14756", "film-number": "07993101"}, "business-address": {"street1": "1901 CHOUTEAU AVE", "street2": "MC 1370", "city": "ST LOUIS", "state": "MO", "zip": "63166-6149", "phone": "314-621-3222"}, "mail-address": {"street1": "1901 CHOUTEAU AVE", "street2": "MC 1370", "city": "ST LOUIS", "state": "MO", "zip": "63103"}}, {"company-data": {"conformed-name": "ILLINOIS POWER CO", "cik": "0000049816", "assigned-sic": "4931", "irs-number": "370344645", "state-of-incorporation": "IL", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-03004", "film-number": "07993102"}, "business-address": {"street1": "500 S 27TH ST", "street2": "C/O HARRIS TRUST & SAVINGS BANK", "city": "DECATUR", "state": "IL", "zip": "62525-1805", "phone": "2174246600"}, "mail-address": {"street1": "500 SOUTH 27TH STREET", "city": "DECATUR", "state": "IL", "zip": "62521"}, "former-company": {"former-conformed-name": "ILLINOIS IOWA POWER CO", "date-changed": "19660822"}}, {"company-data": {"conformed-name": "CILCORP INC", "cik": "0000762129", "assigned-sic": "4931", "irs-number": "371169387", "state-of-incorporation": "IL", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "002-95569", "film-number": "07993103"}, "business-address": {"street1": "300 LIBERTY ST", "street2": "STE 300", "city": "PEORIA", "state": "IL", "zip": "61602", "phone": "309-677-5230"}, "mail-address": {"street1": "300 LIBERTY STREET", "city": "PEORIA", "state": "IL", "zip": "61602"}}]
ameren8k07232007.htm
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
                23, 2007
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
2-95569
CILCORP
                Inc.
(Illinois
                Corporation)
300
                Liberty Street
Peoria,
                Illinois 61602
(309)
                677-5271
37-1169387
1-2732
Central
                Illinois Light Company
(Illinois
                Corporation)
300
                Liberty Street
Peoria,
                Illinois 61602
(309)
                677-5271
37-0211050
1-3004
Illinois
                Power Company
(Illinois
                Corporation)
370
                South Main Street
Decatur,
                Illinois 62523
(217)
                424-6600
37-0344645
Check
        the
        appropriate box below if the Form 8-K filing is intended to simultaneously
        satisfy the filing obligation of the registrants 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
        8.01  Other Events.
Reference
        is made to Note 3 – Rate and Regulatory Matters to our financial statements
        under Part II, Item 8; Outlook and Liquidity and Capital Resources under
        Part
        II, Item 7. Management's Discussion and Analysis of Financial Condition and
        Results of Operations; and Part I, Item 1A. Risk Factors, all in the Form
        10-K
        for the year ended December 31, 2006; and Note 2 – Rate and Regulatory Matters
        to our financial statements under Part I, Item 1; Outlook and Liquidity and
        Capital Resources under Part I, Item 2, Management's Discussion and Analysis of
        Financial Condition and Results of Operations; and Part II, Item 1A. Risk
        Factors, all in the Form 10-Q for the quarterly period ended March 31, 2007,
        of
        registrant Ameren Corporation ("Ameren") and its registrant subsidiaries,
        Central Illinois Public Service Company, doing business as AmerenCIPS ("CIPS"),
        Ameren Energy Generating Company ("Genco"), CILCORP Inc. ("CILCORP"), Central
        Illinois Light Company, doing business as AmerenCILCO ("CILCO"), and Illinois
        Power Company, doing business as AmerenIP ("IP") (collectively, the
"registrants"), for a discussion of potential rate rollback and freeze
        legislation applicable to CIPS, CILCO and IP.  CIPS, CILCO and IP are
        collectively referred to herein as the "Ameren Illinois
        utilities."  Reference is also made to the Current Reports on Form 8-K
        filed by Ameren and certain of its registrant subsidiaries on March 15, 2007,
        April 20, 2007 and April 25, 2007.
The
        registrants believe an agreement in principle has been reached among parties
        in
        Illinois to address the increase in electric rates following the January
        2007
        expiration of a nearly decade-long rate freeze in Illinois.  The
        agreement in principle also addresses the future power procurement process
        in
        Illinois. The agreement is the result of many months of negotiations among
        leaders of the House of Representatives and Senate in Illinois, the office
        of
        the Illinois Attorney General, Ameren, on behalf of its affiliates Ameren
        Energy
        Marketing Company, Genco and AmerenEnergy Resources Generating Company, a
        subsidiary of CILCO ("AERG"), the Ameren Illinois utilities, Exelon Corporation
        ("Exelon"), on behalf of Exelon Generation Company LLC, Commonwealth Edison
        Company, Exelon's Illinois electric utility subsidiary, Dynegy Holdings, Inc.,
        Midwest Generation, LLC, and MidAmerican Energy Company. Terms of the agreement,
        which will include a comprehensive rate relief and customer assistance program,
        are expected to be set forth in legislation, in a letter to the leaders of
        the
        Illinois General Assembly and the Illinois Attorney General, in a release
        and
        settlement agreement with the Illinois Attorney General and in funding
        agreements among the parties contributing to the rate relief and assistance
        programs. We expect these documents to be completed this week.
The
        comprehensive program would provide approximately $1 billion of funding for
        rate
        relief for certain electric customers in Illinois, including $488 million
        to
        customers of the Ameren Illinois utilities.  Pursuant to the rate
        relief program, the Ameren Illinois utilities, Genco and AERG would make
        aggregate contributions of $150 million over a four-year period, with $60
        million coming from the Ameren Illinois utilities (CIPS - $21 million; CILCO
        -
        $11 million; IP - $28 million), $62 million from Genco and $28 million from
        AERG.  Below is a summary of the total customer relief and assistance
        to be provided to the customers of the Ameren Illinois utilities, the Ameren
        Illinois utilities', Genco's and AERG's portion of the funding that is expected
        to be disbursed and the expected charges to earnings as a result of the program
        and agreement:
-2-
Estimated
Total
                Relief/Assistance to
Ameren
                Subsidiaries'
Ameren
                Earnings
Ameren
                Illinois Customers
Funding
(a)
Per
                Share Impact
(b)
2007
$
253,000,000
$
86,000,000
26
¢
2008
132,000,000
37,000,000
11
2009
97,000,000
25,000,000
7
2010
6,000,000
2,000,000
1
Total
$
488,000,000
$
150,000,000
45
¢
(a)
Includes
                  a $4.5 million contribution towards funding of a newly created
                  Illinois
                  Power Agency ("IPA").
(b)
Includes
                  estimated cost of forgiveness of outstanding customer late payment
                  fees.
Other
        electric generators and utilities in Illinois would contribute $851 million
        to
        the comprehensive rate relief and customer assistance program. Contributions
        by
        the other electric generators (the "Generators") and utilities to the
        comprehensive program would be subject to funding agreements.  Under
        these agreements, at the end of each month, the Ameren Illinois utilities would
        bill the Generators for their proportionate share of that month's rate relief
        and assistance, which would be due in 30 days. If any escrow funds have been
        provided by the Generators, these funds would be drawn prior to seeking
        reimbursement from the Generators.
The
        rate
        relief program would preserve existing rates and rate structures and the
        Ameren
        Illinois utilities would continue to have the right to file new electric
        delivery service rate cases with the Illinois Commerce Commission ("ICC") at the
        respective utility's discretion. The redesign of all-electric customers' rates
        is still subject to an ongoing case with the ICC designed to reduce seasonal
        fluctuations for residential customers who use large amounts of electricity
        while allowing utilities to fully recover costs. The agreement provides that
        if
        legislation is enacted in Illinois before August 1, 2011, freezing or reducing
        retail electric rates, or imposing or authorizing a new tax, special assessment
        or fee on the generation of electricity, then the remaining commitments would
        expire and any funds set aside in support of those commitments would be refunded
        to the utilities and Generators.
As
        part
        of the agreement, the current reverse auction used for power procurement
        in
        Illinois would be discontinued immediately and replaced with a new power
        procurement process. In 2008, utilities would contract for necessary baseload,
        intermediate and peaking power requirements through a request-for-proposal
        process, subject to ICC review and approval. Also as part of the agreement,
        existing supply contracts from the September 2006 reverse auction would remain
        in place.  As part of the rate relief program, the Ameren Illinois
        utilities would finalize financial contracts with Ameren Energy Marketing
        Company (for the benefit of Genco and AERG), subject to the enactment of
        enabling legislation, to lock-in prices for 400 to 1,000 megawatts annually
        of
        their baseload power requirements from 2008 through 2012 at relevant market
        prices.
For
        June
        2009 and thereafter, power procurement would be accomplished through competitive
        requests for proposals to supply the separate baseload, intermediate and
        peaking
        power needs of the utilities instead of the year-round requirements previously
        procured through a reverse auction. The power procurement process that is
        expected to be implemented would require the Ameren Illinois utilities to
        develop an annual Procurement Plan ("Plan").  Each Plan would govern a
        utility's procurement of power to meet the expected load requirements that would
        not be met by pre-existing contracts or generation facilities. Subject to
        ICC
        approval, the Ameren Illinois utilities would be allowed to lease, or invest
        in,
        generation facilities. The objective of each Plan would be to ensure adequate,
        reliable, affordable, efficient, and environmentally sustainable electric
        service at the lowest total cost over time taking into account any benefits
        of
        price stability for the utilities' eligible retail customers.  The
        power procurement process provides that each Plan be submitted to the ICC
        for
        initial approval; if approved, the final design and implementation of a Plan
        would be overseen by an independent procurement administrator and procurement
        monitor selected by the IPA.  The IPA would have authority to assist
        in the procurement of electric power for residential and nonresidential
        customers beginning in June 2009.  Winning proposals would be selected
        on the basis of price, compared for reasonableness to a market benchmark
        developed by the procurement administrator and procurement monitor, and approved
        by the ICC.
-3-
The
        power
        procurement process would provide that each electric utility in Illinois
        file
        proposed tariffs with the ICC, which would be designed to pass-through to
        customers the costs of procuring electric power supply with no mark-up on
        the
        price paid by the utilities, plus any reasonable costs that the utilities
        incurred in arranging and providing for the supply of electric
        power.  All such procurement costs would be deemed to have been
        prudently incurred and recoverable through rates.
The
        agreement provides that the Ameren Illinois utilities would have a right
        to
        maintain membership in a Federal Energy Regulatory Commission-approved regional
        transmission organization of their choice for a period of at least 15
        years.
The
        agreement also includes a commitment to energy conservation programs designed
        to
        reduce energy consumption through increased energy efficiency and demand
        response. In addition, 2% of the utilities' electricity would be procured from
        renewable sources beginning June 1, 2008, with that percentage increasing
        in
        subsequent years, subject to limits on customer rate impacts. The provision
        for
        full and timely cost recovery of the cost of these commitments is also included
        in the agreement.
Finally,
        the agreement provides that all pending litigation and regulatory actions
        by the
        Office of the Illinois Attorney General relating to the reverse auction
        procurement process, which was used to determine market-based rates effective
        January 1, 2007, and the electric space heating marketing practices of the
        Ameren Illinois utilities be withdrawn with prejudice. The litigation and
        regulatory actions include those filed by the Illinois Office of the Attorney
        General with the Federal Energy Regulatory Commission, the ICC, the United
        States Court of Appeals for the District of Columbia Circuit and the Circuit
        Court of the First Judicial Circuit, Jackson County, Illinois and the Appellate
        Court of Illinois, Second Judicial Circuit.
In
        order
        for the agreement, including the comprehensive rate relief and customer
        assistance program, to become effective, documents must be finalized and
        executed, tariffs must be filed with the ICC and legislation must be passed
        by
        the Illinois House of Representatives and Illinois Senate, and signed by
        the
        Illinois governor.
-
        - - - -
        - - - - - - - - - - - - - - -
This
        combined Form 8-K is being filed separately by Ameren, CIPS, Genco, CILCORP,
        CILCO and IP.  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.
REGULATION
        G STATEMENT
Ameren
        has presented certain information in this report on a diluted cents per share
        basis. These diluted per share amounts reflect certain factors that are expected
        to directly impact Ameren's total earnings per share. Ameren believes this
        information is useful because it enables readers to better understand the
        impact
        of these factors on Ameren's results of operations and earnings per
        share.
FORWARD-LOOKING
        STATEMENTS
Statements
        in this report not based on historical facts are considered "forward-looking"
and, accordingly, involve risks and uncertainties that could cause actual
        results to differ materially from those discussed.  Although such
        forward-looking statements have been made in good faith and are based on
        reasonable assumptions, there is no assurance that the expected results will
        be
        achieved.  These statements include (without limitation) statements as
        to future expectations, beliefs, plans, strategies, objectives, events,
        conditions, and financial performance.  In connection with the "safe
        harbor" provisions of the Private Securities Litigation Reform Act of 1995, we
        are providing this cautionary statement to identify important factors that
        could
        cause actual results to differ materially from those anticipated.  The
        following factors, in addition to those discussed elsewhere in this report
        and
        in our other filings with the Securities and Exchange Commission, could cause
        actual results to differ materially from management expectations suggested
        in
        such forward-looking statements:
·
regulatory
                  or legislative actions, including changes in regulatory policies
                  and
                  ratemaking determinations, such as the failure of the Illinois
                  General
                  Assembly and Illinois governor to enact legislation implementing
-4-
the
                agreement in principle, including the comprehensive rate relief program,
                or the enactment of legislation rolling back and freezing electric
                rates
                at 2006 levels or imposing a generation "tax" on Genco, AERG and Electric
                Energy, Inc. or similar actions that impair the full and timely recovery
                of costs in Illinois;
·
changes
                  in laws and other governmental
                  actions;
·
disruptions
                  of the capital markets or other events that make access to necessary
                  capital more difficult or costly;
·
the
                  impact of the adoption of new accounting standards and the application
                  of
                  appropriate technical accounting rules and
                  guidance;
·
actions
                  of credit rating agencies and the effects of such
                  actions;
·
the
                  inability of our counterparties and affiliates to meet their obligations
                  with respect to contracts and financial instruments;
                  and
·
legal
                  and administrative proceedings.
Given
        these uncertainties, undue reliance should not be placed on these
        forward-looking statements.  Except to the extent required by the
        federal securities laws, we undertake no obligation to update or revise publicly
        any forward-looking statements to reflect new information or future
        events.
-5-
SIGNATURES
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)
CILCORP
      INC.
(Registrant)
/s/
        Martin J.
        Lyons
Martin
        J.
        Lyons
Vice
        President and Controller
(Principal
        Accounting Officer)
CENTRAL
      ILLINOIS LIGHT COMPANY
(Registrant)
/s/
        Martin J.
        Lyons
Martin
        J.
        Lyons
Vice
        President and Controller
(Principal
        Accounting Officer)
ILLINOIS
      POWER COMPANY
(Registrant)
/s/
        Martin J.
        Lyons
Martin
        J.
        Lyons
Vice
        President and Controller
(Principal
        Accounting Officer)
Date:  July
      23, 2007
-6-