ILLINOIS POWER CO
10-Q, 1999-11-15
ELECTRIC & OTHER SERVICES COMBINED
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549


                                    Form 10-Q

              (X) QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                For the quarterly period ended September 30, 1999

                                       OR
              ( ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

             For the transition period from __________to __________

Commission      Registrants; State of Incorporation;        IRS Employer
File Number      Address; and Telephone Number             Identification No.

   1-11327          Illinova Corporation                      37-1319890
                    (an Illinois Corporation)
                    500 S. 27th Street
                    Decatur, IL  62521
                    (217) 424-6600

   1-3004           Illinois Power Company                    37-0344645
                    (an Illinois Corporation)
                    500 S. 27th Street
                    Decatur, IL  62521
                    (217) 424-6600

         Indicate  by check  mark  whether  the  registrants  (1) have filed all
reports  required to be filed by Section 13 or 15(d) of the Securities  Exchange
Act of 1934 during the preceding 12 months (or for such shorter  period that the
registrant was required to file such report),  and (2) have been subject to such
filing requirements for the past 90 days.

                             Illinova        Yes  X       No
                             Corporation        ----        ----

                             Illinois Power  Yes  X       No
                             Company            ----        ----

         Indicate  the  number of  shares  outstanding  of each of the  issuers'
classes of common stock, as of the latest practicable date:

Illinova Corporation          Common stock, no par value, 69,939,337
                              shares outstanding at September 30, 1999

Illinois Power Company        Common stock, no par value, 62,892,213
                              shares  outstanding  held by  Illinova
                              Corporation at September 30, 1999


<PAGE>


                              ILLINOVA CORPORATION
                             ILLINOIS POWER COMPANY

This combined Form 10-Q is separately filed by Illinova Corporation and Illinois
Power Company.  Information  contained herein relating to Illinois Power Company
is filed by Illinova Corporation and separately by Illinois Power Company on its
own behalf.  Illinois  Power Company makes no  representation  as to information
relating to Illinova Corporation or its subsidiaries, except as it may relate to
Illinois Power Company.

               FORM 10-Q FOR THE QUARTER ENDED September 30, 1999
                                      INDEX
                                    PAGE NO.
Part I.  FINANCIAL INFORMATION

   Item 1:  Financial Statements

            Illinova Corporation

                 Consolidated Balance Sheets                         3 - 4
                 Consolidated Statements of Income                       5
                 Consolidated Statements of Comprehensive Income         6
                 Consolidated Statements of Cash Flows                   7

            Illinois Power Company

                 Consolidated Balance Sheets                         8 - 9
                 Consolidated Statements of Income                      10
                 Consolidated Statements of Comprehensive Income        11
                 Consolidated Statements of Cash Flows                  12

            Notes to Consolidated Financial Statements of
                 Illinova Corporation and
                 Illinois Power Company                            13 - 32

   Item 2:  Management's Discussion and Analysis of
                 Financial Condition and Results of
                 Operations for Illinova Corporation
                 and Illinois Power Company                        33 - 54

   Item 3:  Quantitative and Qualitative Disclosures
                 About Market Risk                                 55 - 57

Part II.  OTHER INFORMATION

   Item 6:  Exhibits and Reports on Form 8-K                            58

   Signatures                                                      59 - 60

   Exhibit Index                                                        61

                                       2
<PAGE>

<TABLE>
<CAPTION>
                          PART I. FINANCIAL INFORMATION
                              ILLINOVA CORPORATION
                           CONSOLIDATED BALANCE SHEETS
          (See accompanying Notes to Consolidated Financial Statements)

                                                                              SEPTEMBER 30,           DECEMBER 31,
                                                                                  1999                   1998
ASSETS                                                                         (Unaudited)             (Audited)
                                                                                     (Millions of Dollars)
Utility Plant
<S>                                                                             <C>                    <C>
    Electric (includes construction work
          in progress of $183.1 million and
          $177.7 million, respectively)                                         $5,570.8               $ 5,481.8
    Gas (includes construction work
          in progress of $16.6 million and
          $15.3 million, respectively)                                             698.6                   686.9
                                                                                --------               ---------
                                                                                 6,269.4                 6,168.7
Less - Accumulated depreciation                                                  1,781.3                 1,713.7
                                                                                --------               ---------
                                                                                 4,488.1                 4,455.0
Nuclear fuel                                                                         1.4                    20.3
                                                                                --------               ---------
       Total utility plant                                                       4,489.5                 4,475.3
                                                                                --------               ---------
Investments and Other Assets                                                       269.5                   246.9
                                                                                --------               ---------
Current Assets
    Cash and cash equivalents                                                       55.0                   518.1
    Accounts receivable (less allowance
     for doubtful accounts of $5.5 million)
       Service                                                                     136.8                   105.9
       Other                                                                       241.8                   116.1
    Accrued unbilled revenue                                                        77.6                    82.6
    Materials and supplies, at average cost                                         98.0                    90.8
    Assets from commodity price risk
       management activities                                                        17.3                    51.5
    Prepayments and other                                                           45.6                    51.5
                                                                                --------               ---------
       Total current assets                                                        672.1                 1,016.5
                                                                                --------               ---------
Deferred Charges
    Transition period cost recovery                                                778.1                   783.0
    Other                                                                          307.9                   279.6
                                                                                --------               ---------
       Total deferred charges                                                    1,086.0                 1,062.6
                                                                                --------               ---------
                                                                                $6,517.1               $ 6,801.3
                                                                                ========               =========
</TABLE>

                                       3
<PAGE>
<TABLE>
<CAPTION>

                              ILLINOVA CORPORATION
                           CONSOLIDATED BALANCE SHEETS
          (See accompanying Notes to Consolidated Financial Statements)

                                                                              SEPTEMBER 30,           DECEMBER 31,
                                                                                  1999                    1998
CAPITAL AND LIABILITIES                                                       (Unaudited)              (Audited)
                                                                                     (Millions of Dollars)
<S>                                                                             <C>                     <C>
Capitalization
    Common stock -
       No par value, 200,000,000 shares authorized;
       75,681,937 shares issued, stated at                                      $1,319.9               $ 1,319.7
    Less - Deferred compensation - ESOP                                              2.5                     6.8
    Retained earnings - accumulated since 1/1/99                                    13.0                       -
    Accumulated other comprehensive income                                           1.2                       -
    Less - Capital stock expense                                                     7.2                     7.3
    Less - 5,742,600 shares of common stock
       in treasury, at cost                                                        138.3                   138.7
                                                                                --------               ---------
          Total common stock equity                                              1,186.1                 1,166.9
    Preferred stock of subsidiary                                                   46.5                    57.1
    Company obligated mandatorily redeemable
       preferred stock of subsidiary                                               193.4                   199.0
    Long-term debt                                                                 175.1                   176.1
    Long-term debt of subsidiary                                                 1,943.5                 2,158.5
                                                                                --------               ---------
          Total capitalization                                                   3,544.6                 3,757.6
                                                                                --------               ---------

Current Liabilities
    Accounts payable                                                               211.8                   256.5
    Notes payable                                                                  387.1                   147.6
    Long-term debt and lease obligations
       of subsidiary maturing within one year                                      236.4                   506.6
    Liabilities from commodity price
       risk management activities                                                   19.0                    99.8
    Other                                                                          336.2                   203.8
                                                                                --------               ---------
          Total current liabilities                                              1,190.5                 1,214.3
                                                                                --------               ---------
Deferred Credits
    Accumulated deferred income taxes                                              989.4                   964.0
    Accumulated deferred investment tax credits                                     38.5                    39.6
    Decommissioning liability                                                      520.2                   567.4
    Other                                                                          233.9                   258.4
                                                                                --------               ---------
          Total deferred credits                                                 1,782.0                 1,829.4
                                                                                --------               ---------
                                                                                $6,517.1               $ 6,801.3
                                                                                ========               =========

</TABLE>
                                       4
<PAGE>
<TABLE>
<CAPTION>

                                                        ILLINOVA CORPORATION
                                                 CONSOLIDATED STATEMENTS OF INCOME
                                   (See accompanying Notes to Consolidated Financial Statements)

                                                         THREE MONTHS ENDED                 NINE MONTHS ENDED
                                                            SEPTEMBER 30,                      SEPTEMBER 30,
                                                       1999            1998              1999              1998
                                                                            (Unaudited)
                                                                (Millions of dollars except per share)
Operating Revenues:
<S>                                                <C>             <C>               <C>             <C>
     Electric                                        $  385.9        $  392.0          $  917.8        $  973.1
     Electric interchange                               247.7           285.1             397.9           494.1
     Gas                                                 42.7            38.2             211.0           204.6
     Diversified enterprises                            224.5           108.0             401.8           274.2
                                                     --------        --------          --------        --------
         Total                                          900.8           823.3           1,928.5         1,946.0
                                                     --------        --------          --------        --------

Operating Expenses:
     Fuel for electric plants                            77.8            73.4             189.2           183.0
     Power purchased                                    199.1           317.7             297.5           644.2
     Gas purchased for resale                            20.4            15.3             109.9           103.7
     Diversified enterprises                            232.0           115.5             428.0           295.2
     Other operating expenses                           145.5            92.0             336.9           259.7
     Maintenance                                         24.1            41.0              91.5           105.0
     Depreciation & amortization                         43.3            51.0             132.7           152.2
     Amortization of regulatory asset                     1.5               -               9.2               -
     General taxes                                       25.7            27.3              78.5           100.3
                                                     --------        --------          --------        --------
         Total                                          769.4           733.2           1,673.4         1,843.3
                                                     --------        --------          --------        --------
Operating Income                                        131.4            90.1             255.1           102.7
                                                     --------        --------          --------        --------
Other Income and Deductions:
     Miscellaneous-net                                    5.2             1.5              22.4             2.8
     Equity earnings in affiliates                        3.5             2.8               6.9            11.7
                                                     --------        --------          --------        --------
         Total                                            8.7             4.3              29.3            14.5
                                                     --------        --------          --------        --------
Income Before Interest
     Charges and Income Taxes                           140.1            94.4             284.4           117.2
                                                     --------        --------          --------        --------
Interest Charges:
     Interest expense                                    51.6            36.8             141.5           109.3
     Allowance for borrowed funds
         used during construction                        (0.8)           (1.5)             (4.0)           (3.8)
     Preferred dividend
         requirements of subsidiary                       4.7             5.0              14.4            14.9
                                                     --------        --------          --------        --------
         Total                                           55.5            40.3             151.9           120.4
                                                     --------        --------          --------        --------
Income (Loss) Before Income Taxes                        84.6            54.1             132.5            (3.2)
                                                     --------        --------          --------        --------
Income Taxes                                             33.9            27.5              55.9            (5.8)
                                                     --------        --------          --------        --------
Net Income                                               50.7            26.6              76.6             2.6
     Carrying amount over
         consideration paid for redeemed
         preferred stock of subsidiary                    1.0               -               1.5               -
                                                     --------        --------          --------        --------
Net Income Applicable to
     Common Stock                                    $   51.7        $   26.6          $   78.1        $    2.6
                                                     ========        ========          ========        ========
Earnings per common share (basic
     and diluted)                                       $0.74           $0.37             $1.12           $0.04
Cash dividends declared per
     common share                                       $0.31           $0.31             $0.93           $0.93
Cash dividends paid per
     common share                                       $0.31           $0.31             $0.93           $0.93
Weighted average number of
     common shares outstanding
     during period                                 69,927,351      71,713,387        69,922,004      71,709,188


</TABLE>
                                       5
<PAGE>
<TABLE>
<CAPTION>

                              ILLINOVA CORPORATION
                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
          (See accompanying Notes to Consolidated Financial Statements)


                                                         THREE MONTHS ENDED                NINE MONTHS ENDED
                                                            SEPTEMBER 30,                     SEPTEMBER 30,
                                                       1999            1998              1999             1998
                                                                            (Unaudited)
                                                                        (Millions of Dollars)

<S>                                                     <C>             <C>               <C>              <C>
Net Income Applicable to Common Stock                   $51.7           $26.6             $78.1            $2.6
                                                     --------        --------          --------        --------
Other Comprehensive Income
     Foreign currency translation adjustments               -               -              (0.2)              -
     Unrealized gains (losses) on securities             (0.9)              -               2.4               -
                                                     --------        --------          --------        --------
         Other comprehensive income, before tax          (0.9)              -               2.2               -
     Income taxes on other comprehensive income           0.3               -              (1.0)              -
                                                     --------        --------          --------        --------
     Other comprehensive income, net of tax              (0.6)              -               1.2               -
                                                     --------        --------          --------        --------
Comprehensive Income                                    $51.1           $26.6             $79.3            $2.6
                                                     ========        ========          ========        ========

</TABLE>

                                       6
<PAGE>


<TABLE>
<CAPTION>

                                                 ILLINOVA CORPORATION
                                         CONSOLIDATED STATEMENTS OF CASH FLOWS
                             (See accompanying Notes to Consolidated Financial Statements)

                                                                                       NINE MONTHS ENDED
                                                                                          SEPTEMBER 30,
                                                                                  1999                   1998
                                                                                         (Unaudited)
                                                                                     (Millions of dollars)

CASH FLOWS FROM OPERATING ACTIVITIES
<S>                                                                             <C>                    <C>
     Net income                                                                 $   76.6               $     2.6
     Items not requiring cash, net                                                 203.6                   119.4
     Changes in assets and liabilities                                            (202.6)                   99.3
                                                                                --------               ---------
     Net cash provided by operating activities                                      77.6                   221.3
                                                                                --------               ---------

CASH FLOWS FROM INVESTING ACTIVITIES
     Construction expenditures                                                    (159.1)                 (190.5)
     Other investing activities                                                    (37.5)                  (36.8)
                                                                                --------               ---------
     Net cash used in investing activities                                        (196.6)                 (227.3)
                                                                                --------               ---------
CASH FLOWS FROM FINANCING ACTIVITIES
     Dividends on common stock                                                     (64.4)                  (66.7)
     Reissuance of common stock                                                      0.5                     0.7
     Capital lease payment                                                        (121.1)                      -
     Redemptions -
          Short-term debt                                                         (527.7)                 (372.4)
          Long-term debt of subsidiary                                            (596.4)                 (109.2)
          Preferred stock of subsidiary                                            (16.2)                      -
     Issuances -
          Short-term debt                                                          767.1                   213.5
          Long-term debt                                                           250.0                   322.5
     Other financing activities                                                    (35.9)                   (0.5)
                                                                                --------               ---------
     Net cash used in financing activities                                        (344.1)                  (12.1)
                                                                                --------               ---------
     NET CHANGE IN CASH AND CASH EQUIVALENTS                                      (463.1)                  (18.1)

     CASH AND CASH EQUIVALENTS
        AT BEGINNING OF YEAR                                                       518.1                    33.0
                                                                                --------               ---------

     CASH AND CASH EQUIVALENTS
        AT END OF PERIOD                                                        $   55.0               $    14.9
                                                                                ========               =========
</TABLE>

                                       7
<PAGE>

<TABLE>
<CAPTION>

                                                      ILLINOIS POWER COMPANY
                                                    CONSOLIDATED BALANCE SHEETS
                                   (See accompanying Notes to Consolidated Financial Statements)

                                                                              SEPTEMBER 30,          DECEMBER 31,
                                                                                  1999                    1998
ASSETS                                                                         (Unaudited)             (Audited)
                                                                                      (Millions of Dollars)
<S>                                                                             <C>                    <C>
Utility Plant
   Electric (includes construction work
       in progress of $183.1 million and
       $177.7 million, respectively)                                            $5,570.8               $ 5,481.8
   Gas (includes construction work
       in progress of $16.6 million and
       $15.3 million, respectively)                                                698.6                   686.9
                                                                                --------               ---------
                                                                                 6,269.4                 6,168.7
Less - Accumulated depreciation                                                  1,781.3                 1,713.7
                                                                                --------               ---------
                                                                                 4,488.1                 4,455.0
Nuclear fuel                                                                         1.4                    20.3
                                                                                --------               ---------
     Total utility plant                                                         4,489.5                 4,475.3
                                                                                --------               ---------
Investments and Other Assets                                                         2.4                     2.6
                                                                                --------               ---------
Current Assets
   Cash and cash equivalents                                                        34.6                   504.5
   Accounts receivable (less allowance
    for doubtful accounts of $5.5 million)
     Service                                                                       136.8                   105.9
     Other                                                                          75.7                    32.5
   Accrued unbilled revenue                                                         77.6                    82.6
   Materials and supplies, at average cost                                          96.8                    90.4
   Assets from commodity price risk
     management activities                                                           2.7                    26.0
   Prepayments and other                                                            38.1                    42.8
                                                                                --------               ---------
     Total current assets                                                          462.3                   884.7
                                                                                --------               ---------
Deferred Charges
   Transition period cost recovery                                                 778.1                   783.0
   Other                                                                           307.3                   284.2
                                                                                --------               ---------
     Total deferred charges                                                      1,085.4                 1,067.2
                                                                                --------               ---------
                                                                                $6,039.6               $ 6,429.8
                                                                                ========               =========
</TABLE>

                                       8
<PAGE>

<TABLE>
<CAPTION>

                             ILLINOIS POWER COMPANY
                           CONSOLIDATED BALANCE SHEETS
          (See accompanying Notes to Consolidated Financial Statements)

                                                                              SEPTEMBER 30,           DECEMBER 31,
                                                                                  1999                    1998
CAPITAL AND LIABILITIES                                                       (Unaudited)              (Audited)
                                                                                        (Millions of Dollars)
<S>                                                                             <C>                    <C>

Capitalization
    Common stock -
      No par value, 100,000,000 shares
      authorized; 75,643,937 shares issued,
      stated at                                                                 $1,382.4               $1,382.4
    Retained earnings - accumulated since 1/1/99                                    49.1                      -
    Accumulated other comprehensive income                                           1.4                      -
    Less - Capital stock expense                                                     7.2                    7.3
    Less - 12,751,724 shares of
      common stock in treasury, at cost                                            286.4                  286.4
                                                                                --------               ---------
           Total common stock equity                                             1,139.3                1,088.7

    Preferred stock                                                                 46.5                   57.1
    Company obligated mandatorily
      redeemable preferred stock                                                   193.4                  199.0
    Long-term debt                                                               1,943.4                2,158.5
                                                                                --------               ---------
           Total capitalization                                                  3,322.6                3,503.3
                                                                                --------               ---------

Current Liabilities
    Accounts payable                                                               188.9                  216.2
    Notes payable                                                                  330.1                  147.6
    Long-term debt and lease obligations
      maturing within one year                                                     236.4                  506.6
    Liabilities from commodity price
      risk management activities                                                     2.3                   61.6
    Other                                                                          168.3                  150.5
                                                                                --------               ---------
           Total current liabilities                                               926.0                1,082.5
                                                                                --------               ---------
Deferred Credits
    Accumulated deferred income taxes                                              998.5                  978.7
    Accumulated deferred investment tax credits                                     38.5                   39.6
    Decommissioning liability                                                      520.2                  567.4
    Other                                                                          233.8                  258.3
                                                                                --------               ---------
           Total deferred credits                                                1,791.0                1,844.0
                                                                                --------               ---------
                                                                                $6,039.6               $6,429.8
                                                                                ========               =========

</TABLE>

                                       9
<PAGE>

<TABLE>
<CAPTION>

                                                       ILLINOIS POWER COMPANY
                                                 CONSOLIDATED STATEMENTS OF INCOME
                                   (See accompanying Notes to Consolidated Financial Statements)

                                                        THREE MONTHS ENDED               NINE MONTHS ENDED
                                                           SEPTEMBER 30,                    SEPTEMBER 30,
                                                        1999          1998              1999            1998
                                                                            (Unaudited)
                                                                       (Millions of dollars)
Operating Revenues:
<S>                                                    <C>           <C>               <C>             <C>
      Electric                                         $385.9        $392.0            $ 917.8         $ 973.1
      Electric interchange                              247.7         285.1              397.9           494.1
      Gas                                                42.7          38.2              211.0           204.6
                                                       ------        ------            -------         -------
           Total                                        676.3         715.3            1,526.7         1,671.8
                                                       ------        ------            -------         -------
Operating Expenses and Taxes:
      Fuel for electric plants                           77.8          73.4              189.2           183.0
      Power purchased                                   199.1         317.7              297.5           644.2
      Gas purchased for resale                           20.4          15.3              109.9           103.7
      Other operating expenses                          145.5          92.0              336.9           259.7
      Maintenance                                        24.1          41.0               91.5           105.0
      Depreciation & amortization                        43.3          51.0              132.7           152.2
      Amortization of regulatory asset                    1.5             -                9.2               -
      General taxes                                      25.7          27.3               78.5           100.3
      Income taxes                                       45.8          31.1               82.5             5.2
                                                       ------        ------            -------         -------
          Total                                         583.2         648.8            1,327.9         1,553.3
                                                       ------        ------            -------         -------
Operating Income                                         93.1          66.5              198.8           118.5
                                                       ------        ------            -------         -------
Other Income and Deductions, Net                         14.1           1.5               31.9             4.4
                                                       ------        ------            -------         -------
Income Before Interest Charges                          107.2          68.0              230.7           122.9
                                                       ------        ------            -------         -------
Interest Charges and Other:
      Interest expense                                   48.2          34.1              131.9           101.5
      Allowance for borrowed funds
          used during construction                       (0.8)         (1.5)              (4.0)           (3.8)
                                                       ------        ------            -------         -------
          Total                                          47.4          32.6              127.9            97.7
                                                       ------        ------            -------         -------
Net Income                                               59.8          35.4              102.8            25.2
      Less - Preferred dividend
          requirements                                    4.7           5.0               14.4            14.9
      Plus - Carrying amount over
          consideration paid for
          redeemed preferred stock                        1.0             -                1.5               -
                                                       ------        ------            -------         -------
Net Income Applicable to
      Common Stock                                      $56.1         $30.4              $89.9           $10.3
                                                       ======        ======            =======         =======
</TABLE>

                                       10
<PAGE>

<TABLE>
<CAPTION>

                             ILLINOIS POWER COMPANY
                 CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
          (See accompanying Notes to Consolidated Financial Statements)


                                                        THREE MONTHS ENDED                 NINE MONTHS ENDED
                                                           SEPTEMBER 30,                     SEPTEMBER 30,
                                                         1999          1998               1999            1998
                                                                            (Unaudited)
                                                                       (Millions of Dollars)

<S>                                                     <C>           <C>                <C>             <C>
Net Income Applicable to Common Stock                   $56.1         $30.4              $89.9           $10.3
                                                        -----         -----              -----           -----

Other Comprehensive Income
     Unrealized gains (losses) on securities             (0.7)            -                2.4               -
     Income taxes on other comprehensive income           0.2             -               (1.0)              -
                                                        -----         -----              -----           -----
     Other comprehensive income, net of tax              (0.5)            -                1.4               -
                                                        -----         -----              -----           -----
Comprehensive Income                                    $55.6         $30.4              $91.3           $10.3
                                                        =====         =====              =====           =====
</TABLE>

                                       11
<PAGE>

<TABLE>
<CAPTION>

                                                ILLINOIS POWER COMPANY
                                         CONSOLIDATED STATEMENTS OF CASH FLOWS
                             (See accompanying Notes to Consolidated Financial Statements)

                                                                                       NINE MONTHS ENDED
                                                                                          SEPTEMBER 30,
                                                                                  1999                    1998
                                                                                           (Unaudited)
                                                                                     (Millions of dollars)

CASH FLOWS FROM OPERATING ACTIVITIES
<S>                                                                             <C>                    <C>
     Net income                                                                 $  102.8               $    25.2
     Items not requiring cash, net                                                 199.0                   127.9
     Changes in assets and liabilities                                            (213.7)                  107.7
                                                                                --------               ---------
     Net cash provided by operating activities                                      88.1                   260.8
                                                                                --------               ---------
CASH FLOWS FROM INVESTING ACTIVITIES
     Construction expenditures                                                    (159.1)                 (190.5)
     Other investing activities                                                     (6.8)                    2.0
                                                                                --------               ---------
     Net cash used in investing activities                                        (165.9)                 (188.5)
                                                                                --------               ---------
CASH FLOWS FROM FINANCING ACTIVITIES
     Dividends on preferred and common stock                                       (54.8)                  (80.0)
     Repurchase of common stock                                                        -                   (29.4)
     Capital lease repurchase                                                     (121.1)                      -
     Redemptions -
          Short-term debt                                                         (459.7)                 (325.0)
          Long-term debt                                                          (596.4)                 (109.2)
          Preferred stock                                                          (16.2)                      -
     Issuances -
          Short-term debt                                                          642.1                   204.6
          Long-term debt                                                           250.0                   252.5
     Other financing activities                                                    (36.0)                   (0.7)
                                                                                --------               ---------
     Net cash used in financing activities                                        (392.1)                  (87.2)
                                                                                --------               ---------
NET CHANGE IN CASH AND CASH EQUIVALENTS                                           (469.9)                  (14.9)
CASH AND CASH EQUIVALENTS
        AT BEGINNING OF YEAR                                                       504.5                    17.8
                                                                                --------               ---------
CASH AND CASH EQUIVALENTS
        AT END OF PERIOD                                                        $   34.6               $     2.9
                                                                                ========               =========
</TABLE>

                                       12
<PAGE>

                 ILLINOVA CORPORATION AND ILLINOIS POWER COMPANY
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

GENERAL

        Financial  statement note  disclosures,  normally  included in financial
statements prepared in conformity with generally accepted accounting principles,
have been omitted from this Form 10-Q pursuant to the Rules and  Regulations  of
the  Securities  and  Exchange  Commission  (SEC).  However,  in the  opinion of
Illinova Corporation (Illinova) and Illinois Power Company (IP), the disclosures
and information contained in this Form 10-Q are adequate and not misleading. See
the consolidated  financial  statements and the accompanying notes in Illinova's
1998 Annual  Report to  Shareholders,  (included  in the Proxy  Statement),  the
consolidated financial statements and the accompanying notes in IP's 1998 Annual
Report to Shareholders (included in the Information  Statement),  Illinova's and
IP's 1998 Form 10-K  filings to the SEC, and  Illinova's  and IP's 1998 Form 8-K
filings  to the SEC  for  information  relevant  to the  consolidated  financial
statements contained herein,  including information as to certain regulatory and
environmental matters and as to the significant accounting policies followed.

        In the opinion of Illinova,  the  accompanying  unaudited  September 30,
1999,  and audited  December 31, 1998,  consolidated  financial  statements  for
Illinova  reflect all adjustments  necessary to present fairly the  Consolidated
Balance Sheets as of September 30, 1999, and December 31, 1998, the Consolidated
Statements of Income for the three and nine months ended  September 30, 1999 and
1998, the Consolidated Statements of Comprehensive Income for the three and nine
months ended  September 30, 1999 and 1998,  and the  Consolidated  Statements of
Cash Flows for the nine months ended  September  30, 1999 and 1998. In addition,
it is Illinova's and IP's opinion that the accompanying  unaudited September 30,
1999, and audited December 31, 1998,  consolidated  financial  statements for IP
reflect all  adjustments  necessary to present fairly the  Consolidated  Balance
Sheets as of September  30,  1999,  and  December  31,  1998,  the  Consolidated
Statements of Income for the three and nine months ended  September 30, 1999 and
1998, the Consolidated Statements of Comprehensive Income for the three and nine
months ended  September 30, 1999 and 1998,  and the  Consolidated  Statements of
Cash  Flows for the nine  months  ended  September  30,  1999 and  1998.  Due to
seasonal and other factors which are  characteristic of electric and gas utility
operations,  interim period results are not necessarily indicative of results to
be expected for the year.

        The consolidated  financial  statements of Illinova include the accounts
of Illinova,  IP, Illinova Generating Company (IGC),  Illinova Insurance Company
(IIC), Illinova Energy Partners,  Inc. (IEP), and Illinova Business Enterprises,
Inc. (IBE). All significant  intercompany  balances and  transactions  have been
eliminated from the  consolidated  financial  statements.  All  transactions for
Illinova's  unregulated   subsidiaries  are  included  in  the  sections  titled
"Diversified  Enterprises," "Interest Charges," "Income Taxes" and "Other Income
and Deductions" in Illinova's Consolidated Statements of Income.

        The  consolidated  financial  statements  of IP include the  accounts of
Illinois Power Capital, L.P., Illinois Power Financing I (IPFI),  Illinois Power
Securitization  Limited  Liability  Company,  and Illinois Power Special Purpose
Trust (IPSPT). All significant  intercompany balances and transactions have been
eliminated from the consolidated financial statements. All non-utility operating
transactions  are included in the section  titled "Other Income and  Deductions,
Net" in IP's Consolidated Statements of Income.


                                       13
<PAGE>

REGULATORY AND LEGAL MATTERS

        OPEN ACCESS AND COMPETITION

         The Illinois  Customer Choice and Rate Relief Act of 1997, P.A. 90-561,
Illinois  electric utility  restructuring  legislation,  was enacted in December
1997. P.A. 90-561 gives IP's residential customers a 15 percent decrease in base
electric rates  beginning  August 1, 1998, and an additional 5 percent  decrease
effective  May 1,  2002.  The rate  decreases  result in revenue  reductions  of
approximately   $35  million  in  1998,  and  expected  revenue   reductions  of
approximately $70 million in each of the years 1999 through 2001,  approximately
$90  million in 2002,  and  approximately  $100  million in 2003,  based on 1997
levels of consumption and compared to rates in effect in 1997.

         Under P.A. 90-561,  customers with demand greater than 4 MW at a single
site and  customers  with at least 10 sites which  aggregate  at least 9.5 MW in
total demand will be free to choose their electric generation suppliers ("direct
access") starting October 1999. Direct access for the remaining  non-residential
customers  will occur in two phases:  customers  representing  one-third  of the
remaining  load in the  non-residential  class in  October  1999  and  customers
representing  the entire  remaining  non-residential  load on December 31, 2000.
Direct  access will be available to all  residential  customers in May 2002.  IP
remains obligated to serve all customers who continue to take service from IP at
tariff  rates and  remains  obligated  to  provide  delivery  service  to all at
regulated rates. Rates for delivery services for non-residential  customers were
established in 1999, in proceedings mandated by P.A.
90-561.

         Although the specified residential rate reductions and the introduction
of direct access will lead to lower electric  service  revenues,  P.A. 90-561 is
designed to protect the  financial  integrity  of  electric  utilities  in three
principal ways:

1)   Departing customers are obligated to pay transition  charges,  based on the
     utility's  lost  revenue from that  customer.  The  transition  charges are
     applicable  through  2006 and can be extended two  additional  years by the
     Illinois Commerce  Commission (ICC). The transition  charges are calculated
     by subtracting  from a customer's fully bundled rate an amount equal to: a)
     delivery charges the utility will continue to receive from the customer, b)
     the market value of the freed-up energy, and c) a mitigation factor,  which
     is the higher of a fixed  rate per kwh or a  percentage  of the  customer's
     bundled base rate. The mitigation  factor  increases  during the transition
     period. By specifically  preventing IP from being held completely  harmless
     with regard to revenue loss, the  mitigation  factor is designed to provide
     incentive for  management to continue cost  reduction  efforts and generate
     new sources of revenue;

2)   Utilities are provided the opportunity to lower their financing and capital
     costs through the issuance of "securitized" bonds, also called transitional
     funding instruments; and

3)   Utilities are permitted to seek rate relief in the event that the change in
     law leads to their return on equity falling below a specified minimum based
     on a prescribed test. Utilities are also subject to an "over-earnings" test
     which requires them, in effect, to share with customers  earnings in excess
     of specified levels.

         The extent to which revenues are affected by P.A. 90-561 will depend on
a number of factors  including  future  market  prices for  wholesale and retail
energy,  load growth and demand levels in the current IP service territory,  and
success in marketing to customers outside IP's service territory.  The impact on
net income will depend on, among other things,  actual  revenues and the cost of
doing business.

                                       14
<PAGE>

         ACCOUNTING MATTERS


     Prior  to the  enactment  of P.A.  90-561,  IP  prepared  its  consolidated
financial  statements in accordance with FAS 71,  "Accounting for the Effects of
Certain Types of  Regulation."  Because P.A.  90-561  provides for  market-based
pricing of electric generation services,  IP discontinued  application of FAS 71
for its generating segment in December 1997, when P.A. 90-561 was enacted.

     In December 1998,  Illinova's and IP's Boards of Directors  decided to exit
the  nuclear  business  through  sale  or  shutdown  of  Clinton  Power  Station
(Clinton).  FAS 121, "Accounting for the Impairment of Long-Lived Assets and for
Long-Lived  Assets to be Disposed Of," requires that all  long-lived  assets for
which management has committed to a plan of disposal be reported at the lower of
carrying amount or fair value less costs to sell. Consequently, IP wrote off the
book value of Clinton and accrued  Clinton-related exit costs, which resulted in
a $1,372.2  million loss,  net of income taxes,  and an  accumulated  deficit in
Illinova's consolidated retained earnings balance of $1,419.5 million.

     Illinova's  and IP's Boards of  Directors  also chose in  December  1998 to
effect a quasi-reorganization. A quasi-reorganization is an accounting procedure
that  eliminates  an  accumulated  deficit in  retained  earnings  and permits a
company to proceed on much the same basis as if it had been legally reorganized.
The Company's assets and liabilities are restated to their fair values.  The net
amount  of these  adjustments  is added to or  deducted  from the  deficit.  The
remaining  deficit in retained  earnings was then  eliminated by a transfer from
paid-in  capital,  giving the  Company a "fresh  start"  with a zero  balance in
retained earnings. The  quasi-reorganization  eliminated Illinova's consolidated
accumulated deficit in retained earnings of $1,419.5 million.

         IP  recognized  the  impairment of  Clinton-related  assets and accrued
exit-related  costs in  December  1998,  based on expected  plant  closure as of
August 31, 1999. As of September  30, 1999 the Company  continued to present the
financial  statements based on eventual plant closure even though the Company is
currently pursuing  regulatory  approvals that would permit the sale of Clinton.
If such approvals are received in the fourth quarter of 1999, IP will adjust its
accruals for  exit-related  costs in accordance  with the terms of the sale. The
estimated   effect  of  adjusting  the  accruals  for   exit-related   costs  is
approximately a $300 million decrease.  Reduction of exit-related  accruals will
not immediately  impact earnings.  The decrease in the accruals will result in a
decrease in the book value of IP's fossil generation assets,  which were written
up to fair value in conjunction with the December 1998 quasi-reorganization. The
write-up  occurred  coincident  with  the  establishment  of  such  exit-related
accruals. The approximate $300 million decrease in the book value of IP's fossil
generation assets will result in an estimated annual decrease in depreciation of
the fair value  adjustment of $9.5 million.  A current  effect of presenting the
financial  statements  under a plant  closure  scenario is that a portion of the
decommissioning  liability is reclassified to current liabilities.  This current
amount  represents  the  decommissioning  expenditures  expected  to be incurred
within the next 12 months  should the pending  sale of Clinton not occur.  As of
September 30, 1999, $68.9 million of  decommissioning  liability was included as
other current liabilities.

         Implementation of a  quasi-reorganization  required the adoption of any
accounting  standards  that  had not yet been  adopted  because  their  required
implementation date had not occurred.  All applicable  accounting standards were
adopted as of December 1998. The standards adopted included FAS 133, "Accounting
for Derivative  Instruments and Hedging  Activities," SOP 98-1,  "Accounting for
the Costs of Computer Software  Developed or Obtained for Internal Use," and SOP

                                       15
<PAGE>

98-5,  "Reporting  on the  Costs of  Start-Up  Activities."  EITF  Issue  98-10,
"Accounting  for  Contracts  Involved  in  Energy  Trading  and Risk  Management
Activities," was adopted according to its December 1998 implementation rules.

        Illinova  and IP  recognized  other  comprehensive  income  for the nine
months  ended   September  30,  1999,   as  required  by  FAS  130,   "Reporting
Comprehensive  Income." FAS 130 established  standards for reporting and display
of  comprehensive  income and its  components  in a full set of  general-purpose
financial statements.  Illinova and IP have adopted the two-statement  approach,
as provided  for by FAS 130 and present a separate  statement  of  comprehensive
income in addition to the income  statement.  Items included in Illinova's other
comprehensive  income for the three and nine months  ended  September  30, 1999,
include  unrealized  gains on securities,  foreign  currency  translations,  and
related  income taxes.  IP's other  comprehensive  income for the three and nine
months ended September 30, 1999,  comprised  unrealized gains on securities held
in IP's nuclear  decommissioning  trust and related income taxes.  There were no
items reported as other comprehensive income in 1998.


MANUFACTURED GAS PLANT SITES

        IP has recorded an estimated  liability for Manufactured Gas Plant (MGP)
site remediation of $58.5 million.  This amount represents IP's current estimate
of the  costs it will  incur  to  remediate  the 24 MGP  sites  for  which it is
responsible.  Because of the unknown and unique characteristics at each site, IP
cannot currently determine its ultimate liability for remediation of the sites.

         In October  1995,  to offset the burden  imposed on its  customers,  IP
initiated  litigation  against a number of insurance  carriers.  Settlements  or
settlements  in principle  have been  reached  with all thirty of the  carriers.
Settlement  proceeds  recovered  from the  carriers  will  offset a  significant
portion of the MGP remediation  costs and will be credited to customers  through
the tariff rider mechanism which the ICC has previously approved.  Cleanup costs
in excess of insurance  proceeds will be fully recovered from IP's  transmission
and distribution customers.


DIVERSIFIED BUSINESS ACTIVITIES

        For  more  information,   see  "Diversified   Business   Activities"  of
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations" on page 35 of this report.


TREASURY STOCK

        Through  September  30,  1999,  IP has  purchased a total of  12,751,724
shares of its common  stock  from  Illinova,  all of which are held as  treasury
stock and deducted  from common equity at the cost of the shares  purchased.  No
shares of IP common stock were  purchased  during the first nine months of 1999.
In October 1998,  the Illinova Board approved the repurchase of up to 12 million
shares  of  Illinova  common  stock  over  the  next  six to  twelve  months  in
conjunction  with IP's issuance of securitized  debt. The total amount of shares
that have been repurchased is 1.8 million shares. No additional  repurchases are
planned at present. For more information,  see "Liquidity and Capital Resources"
of "Management's  Discussion and Analysis of Financial  Condition and Results of
Operations" on page 35 of this report.

        As part of the  contemplated  merger  with  Dynegy,  on June  13,  1999,
Illinova entered into a forward  purchase  agreement  allowing  purchases on the
open market of up to 6.64 million shares of Illinova  common stock over the next
two  years.   No shares  were purchased  under  this  agreement, and it has been
terminated.

                                       16
<PAGE>

FINANCIAL AND OTHER DERIVATIVE INSTRUMENTS

        Trading  Activities-  Illinova,  through its  subsidiaries,  IP and IEP,
engages in the brokering and  marketing of  electricity  and natural gas. IP and
IEP  use a  variety  of  instruments,  including  fixed-price  swap  agreements,
variable-price  swap  agreements,  exchange-traded  energy  futures  and options
contracts, and over-the-counter forwards, swaps, and options.

        As of December 31,  1998,  Illinova  and its  subsidiaries  adopted EITF
98-10.  For more  information  regarding  Illinova's  adoption of new accounting
pronouncements,  see  Accounting  Matters  in  this  section  on page 15 of this
report.  At September 30, 1999, IP's and IEP's derivative assets and liabilities
were recorded in the  Consolidated  Balance Sheets at fair value with unrealized
gains and losses shown net in the Consolidated  Statements of Income. IP and IEP
record  realized  gains and  losses as  components  of  operating  revenues  and
operating expenses in the Consolidated Statements of Income.

        The notional quantities and average terms of commodity  instruments held
for trading purposes at September 30, 1999, are presented below:


                        Volume-Fixed        Volume-Fixed          Average
                         Price Payor       Price Receiver           Term
Electricity
   IP                         600 MW             850 MW            1 year
   IEP                      6,135 MW           5,971 MW            1 year
Gas
   IEP (in thousands)       2,990 MMBtu        2,990 MMBtu         1 year

        All  notional  amounts  reflect  the volume of  transactions  but do not
represent the dollar amounts or actual megawatts exchanged by the parties to the
contracts.  Accordingly,  notional amounts do not accurately  measure Illinova's
exposure to market or credit risk.

        The  estimated  fair value of  commodity  instruments  held for  trading
purposes at September 30, 1999, are presented below:

                                            Fair Value          Fair Value
      (Millions of dollars)                   Assets            Liabilities

Electricity
   IP                                          $ 2.2              $  .9
   IEP                                          12.7               15.4
                                                ----               ----
                                                14.9               16.3

Gas
   IEP                                           1.8                1.3
                                                 ---                ---
                                               $16.7              $17.6

        The fair value was  estimated  using  quoted  prices and  indices  where
available and the liquidity of the market for the instrument was considered. The
fair values are subject to volatility based on changing market conditions.

        The weighted average term of the trading portfolio,  based on volume, is
less than one year.  The  maximum  and average  terms  disclosed  herein are not
indicative of likely future cash flows as these positions may be modified by new
transactions in the trading portfolio at any time in response to changing market
conditions, market liquidity, and Illinova's risk management portfolio needs and
strategies.  Terms  regarding  cash  settlements  of these  contracts  vary with
respect to the actual timing of cash receipts and payments.

                                       17
<PAGE>

Non-Trading Activities- To reduce the risk from market fluctuations in the price
of electricity and related  transmission,  Illinova,  through its subsidiary IP,
enters into forward transactions, swaps, and options (energy derivatives). These
instruments are used to hedge expected  purchases,  sales,  and  transmission of
electricity  (a portion of which are firm  commitments  at the  inception of the
hedge).  The weighted  average  maturity of these  instruments  is less than one
year.

        Periodically,   IP  has  used  interest  rate  derivatives  (principally
interest  rate swaps and caps) to adjust the portion of its  overall  borrowings
subject to interest rate risk. As of September 30, 1999,  there were no interest
rate derivatives outstanding.

        In order to hedge  expected  purchases  of emission  allowances,  IP has
entered into swap  agreements  and written put options  with other  utilities to
mitigate the risk from market  fluctuations in the price of the  allowances.  At
September  30, 1999,  the notional  amount of two emission  allowance  swaps was
126,925 units, with a recorded  liability of $18.7 million,  based on fair value
at delivery date. The maximum maturity of the swap agreements is 10 years. These
swap agreements do not fall under the scope of FAS 133.

        As of December 31, 1998, Illinova and its subsidiaries  adopted FAS 133.
IP's  derivative   assets  and   liabilities  are  currently   recorded  on  the
Consolidated Balance Sheets at fair value with unrealized gains and losses shown
net in the Consolidated  Statements of Income. Hedge accounting was not applied.
In the future, if hedge accounting is applied,  unrealized gains and losses will
be shown as a component  of  Comprehensive  Income in the equity  section of the
Consolidated  Balance Sheets. IP records realized gains and losses as components
of operating revenues and operating  expenses in the Consolidated  Statements of
Income.  As of September 30, 1999, all non-trading  derivative  instruments were
accounted for using mark-to-market accounting.

        The  notional  quantities  and the  average  term of  energy  derivative
commodity  instruments  held for other than trading  purposes at  September  30,
1999, follows:

                             Volume-Fixed       Volume-Fixed       Average
                             Price Payor       Price Receiver        Term
Electricity
   IP                           150 MW             700 MW            1 year

        In addition to the fixed-price notional volumes above, IP recorded a $25
million  liability  in 1998 for three  "commodity  for  commodity"  energy  swap
agreements totaling 3,800 MW which are not considered  derivatives as defined by
FAS 133.  As of  September  30,  1999,  the swap  liability  decreased  to $18.4
million.  The decrease in the liability is due to IP commencing repayment of one
energy swap in January 1999, and a second swap was repaid in July and August. As
part of the second swap, IP delivered an additional  200 MW to be returned to IP
in 2000. This resulted in a receivable of $8.8 million.

        The  notional  amount  is  intended  to be  indicative  of the  level of
activity in such  derivatives,  although  the amounts at risk are  significantly
smaller because changes in the market value of these  derivatives  generally are
offset  by  changes  in  the  value  associated  with  the  underlying  physical
transactions or in other derivatives.  When energy derivatives are closed out in
advance of the  underlying  commitment or  anticipated  transaction,  the market
value changes may not be offset  because price  movement  correlation  ceases to
exist when the positions are closed.

                                       18
<PAGE>

        The estimated fair values of energy  derivative  commodity  instruments,
held for non-trading purposes at September 30, 1999, are presented below:

                                      Fair Value              Fair Value
     (Millions of dollars)              Assets                Liabilities

Electricity
   IP                                    $0.6                    $1.4

        The fair value was  estimated  using  quoted  prices and  indices  where
available,  and considering the liquidity of the market for the instrument.  The
fair  values are subject to  significant  volatility  based on  changing  market
conditions.

        The average maturity and fair values discussed above are not necessarily
indicative of likely future cash flows.  These  positions may be modified by new
offsetting transactions at any time in response to changing generation forecast,
market conditions,  market liquidity,  and Illinova's risk management  portfolio
needs and strategies.  Terms regarding cash  settlements of these contracts vary
with respect to the actual timing of cash receipts and payments.


SUBSEQUENT EVENTS

     FOSSIL ASSET TRANSFER

     Effective  October 1, 1999, IP's fossil  generating assets were transferred
to Illinois Power Marketing, Inc. (IPMI).

     Approximately  $2.8 billion of assets and liabilities were transferred from
IP to Illinova in  exchange  for a note  receivable.  The note  receivable  from
Illinova to IP, in the amount of approximately  $2.7 billion,  matures September
30, 2009, and bears interest at a rate of 7.5% per annum,  payable  semiannually
on the first day of October and April each year. Illinova then transferred these
assets to IPMI as an equity  investment.  IP has entered  into a power  purchase
agreement with IPMI that is similar to a requirements contract. IP will meet its
native load energy requirements first from Clinton output and the remainder from
IPMI.  IP must  purchase a minimum of 55% of tier 1 capacity  annually,  with at
least  40% of the  tier 1  capacity  being  purchased  monthly.  Monthly  tier 1
capacity  ranges from 3,812 MW to 3,907 MW throughout  the year.  The effects of
these intercompany transactions are eliminated during the consolidation process,
making the net effect of these transactions zero.


ILLINOVA - SEGMENTS OF BUSINESS

In 1997, the FASB issued FAS 131,  "Disclosures  about Segments of an Enterprise
and Related Information." This statement superseded FAS 14, "Financial Reporting
for  Segments of a Business  Enterprise,"  and  established  new  standards  for
defining a company's  segments and  disclosing  information  about them. The new
statement  requires  that  segments  be  based  on the  internal  structure  and
reporting of a company's operations.

The Illinova enterprise comprises six separate corporations and eight functional
business  groups.  The business  groups and their  principal  activities  are as
follows:

o    IP Customer Service Business Group - transmission,  distribution,  and sale
     of electric energy; distribution,  transportation,  and sale of natural gas
     in Illinois.

                                       19
<PAGE>

o    IP Wholesale Energy Business Group - fossil-fueled  electric  generation in
     Illinois,  wholesale electricity transactions throughout the United States,
     and dispatching activities.

o    IP Nuclear Generation  Business Group - nuclear-fueled  electric generation
     in Illinois.

o    Illinova Energy Partners - energy-related  products and services throughout
     the United States and Canada.

o    Illinova  Generating  Company - independent  power projects  throughout the
     world.

o    IP  Financial   Business  Group  -  financial  support  functions  such  as
     accounting,  finance, corporate performance, audit and compliance, investor
     relations,  legal, corporate development,  regulatory, risk management, and
     tax services.

o    IP  Support  Services  Business  Group  -  specialized  support  functions,
     including information technology, human resources, environmental resources,
     purchasing and materials management, and public affairs.

o    Corporate - Illinova  Corporation,  Illinova Insurance Company and Illinova
     Business  Enterprises - holding company;  insurance and risk products;  and
     miscellaneous business lines.

Of the above-listed  segments,  the IP Financial  Business Group, the IP Support
Services  Business Group,  and Corporate did not  individually  meet the minimum
threshold  requirements  for separate  disclosure  and are combined in the Other
category.

In 1998,  three  measures were used to judge segment  performance:  contribution
margin, cash flow, and return on net invested capital. In 1999, two measures are
used to judge segment  performance:  contribution margin and cash flow. Omission
of return on net  invested  capital  provides for  increased  focus on near-term
financial needs.

                                       20
<PAGE>
<TABLE>
<CAPTION>

Illinova Corporation
Three Months Ended September 30, 1999                    (Millions of Dollars)

                                                              Illinova
                                   Customer  Wholesale         Energy   Illinova  Other  Consoli-
                                   Service    Energy  Nuclear Partners  Generating        dated
199
<S>                               <C>        <C>       <C>      <C>        <C>     <C>   <C>
Revenues from external customers    $427.1     $234.6   $14.6   $    -      $   -  $  -  $ 676.3
Diversified enterprise revenue           -          -       -    205.2       18.9   0.4    224.5
Intersegment revenue (1)                 -       97.9    61.3        -          -     -    159.2
                                     -----------------------------------------------------------
   Total Revenue                     427.1      332.5    75.9    205.2       18.9   0.4  1,060.0
Depreciation and amortization
   expense                            17.3       25.7     1.8        -          -     -     44.8
Other operating expenses (1)         250.6      286.5   110.1    208.4       20.7   7.5    883.8
                                     -----------------------------------------------------------
   Operating income (loss)           159.2       20.3   (36.0)    (3.2)      (1.8)  (7.1)  131.4
Interest expense                      22.3       24.2     1.8        -          -    3.3    51.6
AFUDC                                 (0.2)      (0.6)      -        -          -      -    (0.8)
                                     -----------------------------------------------------------
   Income (loss) before taxes        137.1       (3.3)  (37.8)    (3.2)      (1.8) (10.4)   80.6
Income tax expense (benefit)          53.6       (3.2)  (14.2)    (1.0)      (0.5)  (0.8)   33.9
Miscellaneous - net                    0.2        1.8    (1.0)       -       (0.2)  (0.8)      -
Equity earnings in affiliates            -          -       -     (0.6)      (2.9)     -    (3.5)
Interest revenue                         -          -    (0.9)       -          -   (4.3)   (5.2)
                                     -----------------------------------------------------------
   Net income (loss) after taxes      83.3       (1.9)  (21.7)    (1.6)       1.8   (4.5)   55.4
Preferred dividend requirement and
   carrying amount over (under)
   consideration paid for redeemed
   preferred stock                     2.6        2.8    (0.7)       -          -   (1.0)    3.7
                                      ----------------------------------------------------------
Net income (loss) applicable
   to common stock                   $80.7      $(4.7) $(21.0)   $(1.6)      $1.8  $(3.5)  $51.7
- ------------------------------------------------------------------------------------------------
Other information -
   Total assets (2)               $2,716.7   $3,092.1  $182.8   $168.2     $259.1  $98.2 $6,517.1
   Subsidiary's investment in
      equity method investees            -          -       -     10.2      212.1      -   222.3
   Total expenditures for additions
      to long-lived assets            28.7      (21.4)      -        -          -    2.2     9.5
- ------------------------------------------------------------------------------------------------
Corporate Measures -
   Contribution margin (3)          $95.7      $11.3  $(20.1)   $(1.6)      $1.8  $(2.6)  $84.5
   Cash flow (4)                     10.9       19.3    (4.8)     2.2        1.9   44.4    73.9
- -----------------------------------------------------------------------------------------------
   Return on net invested capital(5)  N/A        N/A     N/A      N/A        N/A    N/A     N/A
</TABLE>

(1)Intersegment  revenue  priced at 2.9 cents  per kwh  delivered.  Intersegment
     expense is reflected in other operating expenses for Customer Service.
(2)  Primary assets for Nuclear include decommissioning assets and nuclear fuel.
(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.
(4)  Cash flow before financing activities and strategic activities.
(5)  Return on net invested capital is no longer a corporate measure in 1999.

                                       21
<PAGE>
<TABLE>
<CAPTION>

Illinova Corporation
Three Months Ended September 30, 1998                    (Millions of Dollars)

                                                       Illinova
                                   Customer  Wholesale         Energy   Illinova  Other  Consoli-
                                   Service    Energy  Nuclear Partners  Generating        dated
1998
<S>                               <C>          <C>    <C>        <C>       <C>    <C>    <C>
Revenues from external customers    $428.4     $285.1    $1.8   $    -      $  -   $  -   $715.3
Diversified enterprise revenue           -          -       -    104.3        1.8   1.9    108.0
Intersegment revenue (1)                 -      141.4    (0.6)       -          -     -    140.8
                                     ------------------------------------------------------------
   Total Revenue                     428.4      426.5     1.2    104.3        1.8   1.9    964.1
Depreciation and amortization
   expense                            17.1        7.7    24.8        -          -   1.4     51.0
Other operating expenses (1)         225.6      392.4    93.1    108.2        3.9  (0.2)   823.0
                                     ------------------------------------------------------------
   Operating income (loss)           185.7       26.4  (116.7)    (3.9)      (2.1)  0.7     90.1
Interest expense                      14.0        3.7    16.5        -          -   2.6     36.8
AFUDC                                 (0.2)      (0.5)   (0.7)       -          -  (0.1)    (1.5)
                                     ------------------------------------------------------------
   Income (loss) before taxes        171.9       23.2  (132.5)    (3.9)      (2.1) (1.8)    54.8
Income tax expense (benefit)          71.0        9.1   (56.8)    (1.2)      (0.3)  5.7     27.5
Miscellaneous - net                    0.1       (1.4)    0.1        -       (0.2)  0.6     (0.8)
Equity earnings in affiliates            -          -       -     (0.8)      (2.0)     -    (2.8)
Interest revenue                         -          -       -        -          -   (0.7)   (0.7)
                                     ------------------------------------------------------------
   Net income (loss) after taxes     100.8       15.5  (75.8)    (1.9)        0.4  (7.4)    31.6
Preferred dividend requirement         1.9        0.5    2.6        -          -      -      5.0
                                      ----------------------------------------------------------
Net income (loss) applicable
   to common stock                   $98.9     $ 15.0 $(78.4)   $(1.9)       $0.4 $(7.4)  $ 26.6
- ------------------------------------------------------------------------------------------------
Other information -
   Total assets (2)               $1,834.9     $722.9 $2,756.1   $60.0     $206.0 $ 91.3 $5,671.2
   Subsidiary's investment in
      equity method investees            -          -        -    10.0      177.2      -   187.2
   Total expenditures for additions
      to long-lived assets            29.5       32.0    13.9        -          -    1.6    77.0
- ------------------------------------------------------------------------------------------------
Corporate Measures -
   Contribution margin (3)          $107.8     $ 16.3  $(66.5)   $(1.9)     $0.4   $(5.9)  $50.2
   Cash flow (4)                      48.9      (71.4)  (80.1)    (2.2)      1.5    14.1   (89.2)
- ------------------------------------------------------------------------------------------------
Return on net invested capital (5)    8.4%       3.6%     N/A      N/A       0.2%    N/A     1.4%
</TABLE>

(1)  Intersegment  revenue priced at 2.5 cents per kwh  delivered.  Intersegment
     expense is reflected  in other  operating  expenses  for Customer  Service.
     Nuclear  reflects a  replacement  power expense for the increment of market
     price over the intersegment price.
(2)  Primary  assets for Nuclear  include  plant,  decommissioning  assets,  and
     nuclear fuel.
(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.
(4)  Cash flow before financing activities and strategic activities.
(5)  Return on net invested capital calculated as contribution margin divided by
     net invested capital.

                                       22
<PAGE>

ILLINOVA GEOGRAPHIC INFORMATION

(Millions of dollars)
- --------------------------------------------------------------------------------
Third Quarter                            1999        1998
- --------------------------------------------------------------------------------
Revenues: (1)
     United States                      $897.2      $822.1
     Foreign countries (Seven)             3.6         1.2
                                        ------      ------
                                        $900.8      $823.3
                                        ======      ======


(Millions of dollars)
- --------------------------------------------------------------------------------
September 30,                              1999        1998
- --------------------------------------------------------------------------------
Long-lived assets: (2)
     United States                       $4,539.4    $4,632.4
     Foreign countries (Nine)               181.1       136.4
                                         --------    --------
                                         $4,720.5    $4,768.8
                                         ========    ========

(1)  Revenues  are  attributed  to  geographic  regions  based  on  location  of
     customer.
(2)  Long-lived   assets   include   plant,   equipment,   and   investments  in
     subsidiaries.

                                       23
<PAGE>
<TABLE>
<CAPTION>

Illinova Corporation
Nine Months Ended September 30, 1999                   (Millions of Dollars)

                                                              Illinova
                                   Customer  Wholesale         Energy   Illinova  Other  Consoli-
                                   Service    Energy  Nuclear Partners  Generating        dated
1999
<S>                               <C>        <C>       <C>      <C>        <C>     <C>   <C>
Revenues from external customers  $1,124.6     $380.5    $21.6  $    -      $   -  $  - $1,526.7
Diversified enterprise revenue           -          -        -   329.0       71.3   1.5    401.8
Intersegment revenue (1)                 -      352.7     97.8       -          -     -    450.5
                                     -----------------------------------------------------------
   Total Revenue                   1,124.6      733.2    119.4   329.0       71.3   1.5  2,379.0
Depreciation and amortization
   expense                            59.5       77.0     5.4        -          -     -    141.9
Other operating expenses (1)         735.7      548.4   259.1    338.4       77.1  23.3  1,982.0
                                     -----------------------------------------------------------
   Operating income (loss)           329.4      107.8  (145.1)    (9.4)      (5.8) (21.8)  255.1
Interest expense                      60.9       65.2     5.8        -          -    9.6   141.5
AFUDC                                 (1.0)      (3.0)      -        -          -      -    (4.0)
                                     -----------------------------------------------------------
   Income (loss) before taxes        269.5       45.6  (150.9)    (9.4)      (5.8) (31.4)  117.6
Income tax expense (benefit)         104.2       14.8   (57.4)    (2.8)       0.7   (3.6)   55.9
Miscellaneous - net                    0.4          -    (3.1)       -       (6.9)  (3.0)  (12.6)
Equity earnings in affiliates            -          -       -     (2.2)      (4.7)     -    (6.9)
Interest revenue                         -          -    (2.8)       -          -   (7.0)   (9.8)
                                     -----------------------------------------------------------
   Net income (loss) after taxes     164.9       30.8   (87.6)    (4.4)       5.1  (17.8)   91.0
Preferred dividend requirement and
   carrying amount over/(under)
   consideration paid for redeemed
   preferred stock                     8.1        8.6    (2.3)       -          -   (1.5)   12.9
                                      ----------------------------------------------------------
Net income (loss) applicable
   to common stock                  $156.8      $22.2  $(85.3)   $(4.4)      $5.1 $(16.3)  $78.1
- ------------------------------------------------------------------------------------------------
Other information -
   Total assets (2)               $2,716.7   $3,092.1  $182.8   $168.2     $259.1  $98.2 $6,517.1
   Subsidiary's investment in
      equity method investees            -          -       -     10.2      212.1      -   222.3
   Total expenditures for additions
      to long-lived assets            78.8       79.1       -        -          -    5.2   163.1
- ------------------------------------------------------------------------------------------------
Corporate Measures -
   Contribution margin (3)          $198.2      $65.1  $(83.5)   $(4.4)      $5.1 $(12.1) $168.4
   Cash flow (4)                      71.1     (119.5) (137.5)    (2.4)      23.4  131.7   (33.2)
- ------------------------------------------------------------------------------------------------
   Return on net invested capital (5)  N/A        N/A     N/A      N/A        N/A    N/A     N/A
</TABLE>

(1)  Intersegment  revenue  priced  at 2.9  cents  per kwh  delivered  for 1999.
     Intersegment  expense is reflected in other operating expenses for Customer
     Service.
(2)  Primary assets for Nuclear include  decommissioning  assets, shared general
     and intangible plant and nuclear fuel.
(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.
(4)  Cash flow before financing activities and strategic investments.
(5)  Return on net invested capital is no longer a corporate measure in 1999.

                                       24
<PAGE>
<TABLE>
<CAPTION>

Illinova Corporation
Nine Months Ended September 30, 1998                       (Millions of Dollars)

                                                              Illinova
                                   Customer  Wholesale         Energy   Illinova  Other  Consoli-
                                   Service    Energy  Nuclear Partners  Generating        dated
1998
<S>                               <C>          <C>    <C>       <C>       <C>     <C>   <C>
Revenues from external customers  $1,172.9     $494.1    $4.8    $   -      $  -   $  - $1,671.8
Diversified enterprise revenue           -          -       -    265.6        5.2   3.4    274.2
Intersegment revenue (1)                 -      373.4    (1.8)       -          -     -    371.6
                                     ------------------------------------------------------------
   Total Revenue                   1,172.9      867.5     3.0    265.6       5.2    3.4  2,317.6
Depreciation and amortization
   expense                            50.9       22.6    74.3        -          -   4.4    152.2
Other operating expenses (1)         679.9      828.0   261.5    276.3       12.8   4.2  2,062.7
                                     ------------------------------------------------------------
   Operating income (loss)           442.1       16.9  (332.8)   (10.7)      (7.6)  (5.2)  102.7
Interest expense                      40.5       12.3    48.8        -          -    7.7   109.3
AFUDC                                 (0.8)      (1.2)   (1.6)       -          -   (0.2)   (3.8)
                                     ------------------------------------------------------------
   Income (loss) before taxes        402.4        5.8  (380.0)   (10.7)      (7.6) (12.7)   (2.8)
Income tax expense (benefit)         165.4       (0.9) (163.0)    (2.9)      (1.6)  (2.8)   (5.8)
Miscellaneous - net                    0.4       (0.8)    0.1     (0.1)      (0.4)   0.1    (0.7)
Equity earnings in affiliates            -          -       -     (3.2)      (8.5)     -   (11.7)
Interest revenue                         -          -       -        -          -   (2.1)   (2.1)
                                     ------------------------------------------------------------
   Net income (loss) after taxes     236.6        7.5  (217.1)    (4.5)       2.9   (7.9)   17.5
Preferred dividend requirement         5.4        1.8     7.6        -          -    0.1    14.9
                                      ----------------------------------------------------------
Net income (loss) applicable
   to common stock                  $231.2      $ 5.7 $(224.7)  $(4.5)      $2.9  $(8.0)   $ 2.6
- ------------------------------------------------------------------------------------------------
Other information -
   Total assets (2)               $1,834.9     $722.9 $2,756.1  $60.0     $206.0  $91.3 $5,671.2
   Subsidiary's investment in
      equity method investees            -          -       -    10.0      177.2      -    187.2
   Total expenditures for additions
      to long-lived assets            90.4       59.4    40.1       -          -    4.4    194.3
- ------------------------------------------------------------------------------------------------
Corporate Measures -
   Contribution margin (3)          $256.8     $10.8  $(189.1)   $(4.5)     $2.9   $(3.7)  $73.2
   Cash flow (4)                     175.8      49.8   (232.1)     1.3       4.5    33.2    32.5
- ------------------------------------------------------------------------------------------------
Return on net invested capital (5)   19.9%      2.4%      N/A      N/A      1.5%    N/A     2.0%
</TABLE>

(1)  Intersegment  revenue priced at 2.5 cents per kwh  delivered.  Intersegment
     expense is reflected  in other  operating  expenses  for Customer  Service.
     Nuclear  reflects a  replacement  power expense for the increment of market
     price over the intersegment price.
(2)  Primary  assets for Nuclear  include  plant,  decommissioning  assets,  and
     nuclear fuel.
(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.
(4)  Cash flow before financing activities and strategic activities.
(5)  Return on net invested capital calculated as contribution margin divided by
     net invested capital.

                                       25
<PAGE>

ILLINOVA GEOGRAPHIC INFORMATION

(Millions of dollars)
- --------------------------------------------------------------------------------
Year-To-Date September 30,               1999        1998
- --------------------------------------------------------------------------------
Revenues: (1)
     United States                     $1,916.3     $1,942.7
     Foreign countries (Seven)             12.2          3.3
                                       --------     --------
                                       $1,928.5     $1,946.0
                                       ========     ========


(Millions of dollars)
- --------------------------------------------------------------------------------
September 30,                              1999        1998
- --------------------------------------------------------------------------------
Long-lived assets: (2)
     United States                       $4,539.4    $4,632.4
     Foreign countries (Nine)               181.1       136.4
                                         --------    --------
                                         $4,720.5    $4,768.8
                                         ========    ========

(1) Revenues are attributed to geographic regions based on location of customer.
(2) Long-lived assets include plant, equipment, and investments in subsidiaries.


IP - SEGMENTS OF BUSINESS

IP comprises  five  business  groups.  The business  groups and their  principal
services are as follows:

o    IP Customer Service Business Group - transmission,  distribution,  and sale
     of electric energy; distribution,  transportation,  and sale of natural gas
     in Illinois.
o    IP Wholesale Energy Business Group - fossil-fueled  electric  generation in
     Illinois,  wholesale electricity transactions throughout the United States,
     and dispatching activities.
o    IP Nuclear Generation  Business Group - nuclear-fueled  electric generation
     in Illinois.
o    IP  Financial   Business  Group  -  financial  support  functions  such  as
     accounting,  finance, corporate performance, audit and compliance, investor
     relations,  legal, corporate development,  regulatory, risk management, and
     tax services.
o    IP  Support  Services  Business  Group  -  specialized  support  functions,
     including information technology, human resources, environmental resources,
     purchasing and materials management, and public affairs.

Of the above-listed segments, the IP Financial Business Group and the IP Support
Services  Business  Group  did  not  individually  meet  the  minimum  threshold
requirements for separate disclosure and are combined in the Other category.

In 1998,  three  measures were used to judge segment  performance:  contribution
margin, cash flow, and return on net invested capital. In 1999, two measures are
used to judge segment  performance;  contribution margin and cash flow. Omission
of return on net  invested  capital  provides for  increased  focus on near-term
financial needs.


                                       26
<PAGE>
<TABLE>
<CAPTION>

Illinois Power
Three Months Ended September 30, 1999                                                           (Millions of Dollars)

                                                              Customer       Wholesale                                   Total
1999                                                           Service         Energy        Nuclear        Other        Company
<S>                                                          <C>             <C>            <C>           <C>          <C>
Revenues from external customers                               $427.1          $234.6        $14.6           $ -         $676.3
Intersegment revenue (1)                                            -            97.9         61.3             -          159.2
                                                       -------------------------------------------------------------------------
  Total Revenue                                                 427.1           332.5         75.9             -          835.5
Depreciation and amortization
  expense                                                        17.3            25.7          1.8             -           44.8
Other operating expenses (1)                                    250.6           286.5        110.1           4.7          651.9
                                                       -------------------------------------------------------------------------
  Operating income (loss)                                       159.2            20.3       (36.0)         (4.7)          138.8
Interest expense                                                 22.3            24.2          1.8         (0.1)           48.2
AFUDC                                                           (0.2)           (0.6)            -             -          (0.8)
                                                       -------------------------------------------------------------------------
  Income (loss) before taxes                                    137.1           (3.3)       (37.8)         (4.6)           91.4
Income tax expense (benefit)                                     53.6           (3.2)       (14.2)           1.0           37.2
Miscellaneous-net                                                 0.2             1.8        (1.0)         (0.4)            0.6
Interest revenue                                                    -               -        (0.9)         (5.3)          (6.2)
                                                       -------------------------------------------------------------------------
  Net income (loss) after taxes                                  83.3           (1.9)       (21.7)           0.1           59.8
Preferred dividend requirement and
  carrying amount over/(under)  consideration
  paid for redeemed preferred stock                               2.6             2.8        (0.7)         (1.0)            3.7
                                                       -------------------------------------------------------------------------
Net income (loss) applicable to
  common stock                                                 $ 80.7          $(4.7)     $ (21.0)         $ 1.1         $ 56.1
- --------------------------------------------------------------------------------------------------------------------------------
Other information -

  Total assets (2)                                           $2,716.7        $3,092.1       $182.8        $ 48.0       $6,039.6
  Total expenditures for additions
    to long-lived assets                                         28.7          (21.4)            -           2.2            9.5
- --------------------------------------------------------------------------------------------------------------------------------
Corporate Measures -
  Contribution margin (3)                                      $ 95.7          $ 11.3     $ (20.1)           $ -          $86.9
  Cash flow (4)                                                  10.9            19.3        (4.8)          54.6           80.0
  Return on net invested capital (5)                              N/A             N/A          N/A           N/A            N/A
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>


(1)  Intersegment  revenue  priced  at 2.9  cents  per kwh  delivered  for 1999.
     Intersegment  expense is reflected in other operating expenses for Customer
     Service.
(2)  Primary assets for Nuclear include  decommissioning  assets, shared general
     and intangible plant and nuclear fuel.
(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.
(4)  Cash flow before financing activities and strategic activities.
(5)  Return on net invested capital is no longer a corporate measure in 1999.

                                       27
<PAGE>
<TABLE>
<CAPTION>

Illinois Power
Three Months Ended September 30, 1998                                                         (Millions of Dollars)

                                                          Customer       Wholesale                                   Total
1998                                                      Service         Energy        Nuclear        Other        Company
<S>                                                          <C>              <C>         <C>             <C>          <C>
Revenues from external customers                               $428.4         $ 285.1        $ 1.8           $ -         $715.3
Intersegment revenue (1)                                            -           141.4        (0.6)             -          140.8
                                                       -------------------------------------------------------------------------
  Total Revenue                                                 428.4           426.5          1.2             -          856.1
Depreciation and amortization
  expense                                                        17.1             7.7         24.8           1.4           51.0
Other operating expenses (1)                                    225.6           392.4         93.1         (3.6)          707.5
                                                       -------------------------------------------------------------------------
  Operating income (loss)                                       185.7            26.4      (116.7)           2.2           97.6
Interest expense                                                 14.0             3.7         16.5         (0.1)           34.1
AFUDC                                                           (0.2)           (0.5)        (0.7)         (0.1)          (1.5)
                                                       -------------------------------------------------------------------------
  Income (loss) before taxes                                    171.9            23.2      (132.5)           2.4           65.0
Income tax expense (benefit)                                     71.0             9.1       (56.8)           7.2           30.5
Miscellaneous-net                                                 0.1           (1.4)          0.1         (0.3)          (1.5)
Interest revenue                                                    -               -            -           0.6            0.6
                                                       -------------------------------------------------------------------------
  Net income (loss) after taxes                                 100.8            15.5       (75.8)         (5.1)           35.4
Preferred dividend requirement                                    1.9             0.5          2.6             -            5.0
                                                       -------------------------------------------------------------------------
Net income (loss) applicable to
  common stock                                                 $ 98.9           $15.0     $ (78.4)       $ (5.1)         $ 30.4
- --------------------------------------------------------------------------------------------------------------------------------
Other information -

  Total assets (2)                                           $1,834.9         $ 722.9     $2,756.1        $ 32.3       $5,346.2
  Total expenditures for additions
    to long-lived assets                                         29.5            32.0         13.9           1.6           77.0
- --------------------------------------------------------------------------------------------------------------------------------
Corporate Measures -
  Contribution margin (3)                                      $107.8           $16.3     $ (66.5)        $(5.0)         $ 52.6
  Cash flow (4)                                                  48.9          (71.4)       (80.1)          68.8         (33.8)
  Return on net invested capital (5)                             8.4%            3.6%          N/A           N/A           1.4%
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>


(1)  Intersegment  revenue  priced  at 2.5  cents  per kwh  delivered  for 1998.
     Intersegment  expense is reflected in other operating expenses for Customer
     Service.  Nuclear reflects a replacement power expense for the increment of
     market price over the intersegment price for 1998.
(2)  Primary  assets for Nuclear  include  plant,  decommissioning  assets,  and
     nuclear fuel.
(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.
(4)  Cash flow before financing activities and strategic activities.
(5)  Return on net invested capital calculated as contribution margin divided by
     net invested capital.

                                       28
<PAGE>

ILLINOIS POWER GEOGRAPHIC INFORMATION

(Millions of dollars)
- --------------------------------------------------------------------------------
Third Quarter                             1999        1998
- --------------------------------------------------------------------------------
Revenues: (1)
     United States                       $676.3       $715.3
                                         ======       ======

(Millions of dollars)
- --------------------------------------------------------------------------------
September 30,                               1999        1998
- --------------------------------------------------------------------------------
Long-lived assets: (2)
     United States                       $4,473.6    $4,578.9
                                         ========    ========

(1)  Revenues  are  attributed  to  geographic  regions  based  on  location  of
     customer.
(2)  Long-lived   assets   include   plant,   equipment,   and   investments  in
     subsidiaries.


                                       29
<PAGE>
<TABLE>
<CAPTION>

Illinois Power
Nine Months Ended September 30, 1999                                                              (Millions of Dollars)

                                                          Customer       Wholesale                                   Total
1999                                                      Service         Energy        Nuclear        Other        Company
<S>                                                          <C>             <C>            <C>           <C>          <C>
Revenues from external customers                             $1,124.6         $ 380.5       $ 21.6           $ -       $1,526.7
Intersegment revenue (1)                                            -           352.7         97.8             -          450.5
                                                       -------------------------------------------------------------------------
  Total Revenue                                               1,124.6           733.2        119.4             -        1,977.2
Depreciation and amortization
  expense                                                        59.5            77.0          5.4             -          141.9
Other operating expenses (1)                                    735.7           548.4        259.1          10.9        1,554.1
                                                       -------------------------------------------------------------------------
  Operating income (loss)                                       329.4           107.8      (145.1)        (10.9)          281.2
Interest expense                                                 60.9            65.2          5.8             -          131.9
AFUDC                                                           (1.0)           (3.0)            -             -          (4.0)
                                                       -------------------------------------------------------------------------
  Income (loss) before taxes                                    269.5            45.6      (150.9)        (10.9)          153.3
Income tax expense (benefit)                                    104.2            14.8       (57.4)           3.4           65.0
Miscellaneous-net                                                 0.4               -        (3.1)         (0.7)          (3.4)
Interest revenue                                                    -               -        (2.8)         (8.3)         (11.1)
                                                       -------------------------------------------------------------------------
  Net income (loss) after taxes                                 164.9            30.8       (87.6)         (5.3)          102.8
Preferred dividend requirement and
  carrying amount over (under)
  consideration paid for
  redeemed preferred stock                                        8.1             8.6        (2.3)         (1.5)           12.9
                                                       -------------------------------------------------------------------------
Net income (loss) applicable to
  common stock                                                 $156.8          $ 22.2     $ (85.3)       $ (3.8)         $ 89.9
- --------------------------------------------------------------------------------------------------------------------------------
Other information -
  Total assets (2)                                           $2,716.7        $3,092.1       $182.8        $ 48.0       $6,039.6
  Total expenditures for additions
    to long-lived assets                                         78.8            79.1            -           5.2          163.1
- --------------------------------------------------------------------------------------------------------------------------------
Corporate Measures -
  Contribution margin (3)                                      $198.2          $ 65.1     $ (83.5)       $ (5.3)         $174.5
  Cash flow (4)                                                  71.1         (119.5)      (137.5)         141.2         (44.7)
  Return on net invested capital (5)                              N/A             N/A          N/A           N/A            N/A
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>


(1)  Intersegment  revenue  priced  at 2.9  cents  per kwh  delivered  for 1999.
     Intersegment  expense is reflected in other operating expenses for Customer
     Service.

(2)  Primary assets for Nuclear include  decommissioning  assets, shared general
     and intangible plant and nuclear fuel.

(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.

(4)  Cash flow before financing activities and strategic investments.

(5)  Return on net invested capital is no longer a corporate measure in 1999.

                                       30
<PAGE>
<TABLE>
<CAPTION>

Illinois Power
Nine Months Ended September 30, 1998                                                       (Millions of Dollars)

                                                            Customer       Wholesale                                     Total
1998                                                        Service         Energy        Nuclear        Other          Company
<S>                                                          <C>              <C>         <C>             <C>          <C>
Revenues from external customers                             $1,172.9         $ 494.1        $ 4.8           $ -       $1,671.8
Intersegment revenue (1)                                            -           373.4        (1.8)             -          371.6
                                                       -------------------------------------------------------------------------
  Total Revenue                                               1,172.9           867.5          3.0             -        2,043.4
Depreciation and amortization
  expense                                                        50.9            22.6         74.3           4.4          152.2
Other operating expenses (1)                                    679.9           828.0        261.5         (1.9)        1,767.5
                                                       -------------------------------------------------------------------------
  Operating income (loss)                                       442.1            16.9      (332.8)         (2.5)          123.7
Interest expense                                                 40.5            12.3         48.8         (0.1)          101.5
AFUDC                                                           (0.8)           (1.2)        (1.6)         (0.2)          (3.8)
                                                       -------------------------------------------------------------------------
  Income (loss) before taxes                                    402.4             5.8      (380.0)         (2.2)           26.0
Income tax expense (benefit)                                    165.4           (0.9)      (163.0)           1.2            2.7
Miscellaneous-net                                                 0.4           (0.8)          0.1         (0.2)          (0.5)
Interest revenue                                                    -               -            -         (1.4)          (1.4)
                                                       -------------------------------------------------------------------------
  Net income (loss) after taxes                                 236.6             7.5      (217.1)         (1.8)           25.2
Preferred dividend requirement                                    5.4             1.8          7.6           0.1           14.9
                                                       -------------------------------------------------------------------------
Net income (loss) applicable to
  common stock                                                 $231.2           $ 5.7     $(224.7)        $(1.9)         $ 10.3
- --------------------------------------------------------------------------------------------------------------------------------
Other information -
  Total assets (2)                                           $1,834.9         $ 722.9     $2,756.1        $ 32.3       $5,346.2
  Total expenditures for additions
    to long-lived assets                                         90.4            59.4         40.1           4.4          194.3
- --------------------------------------------------------------------------------------------------------------------------------
Corporate Measures -
  Contribution margin (3)                                      $256.8           $10.8     $(189.1)       $ (2.0)         $ 76.5
  Cash flow (4)                                                 175.8            49.8      (232.1)          78.8           72.3
                    Return on net invested capital (5)          19.9%            2.4%          N/A           N/A           2.1%
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>


(1)  Intersegment  revenue  priced  at 2.5  cents  per kwh  delivered  for 1998.
     Intersegment  expense is reflected in other operating expenses for Customer
     Service.  Nuclear reflects a replacement power expense for the increment of
     market price over the intersegment price for 1998.
(2)  Primary  assets for Nuclear  include  plant,  decommissioning  assets,  and
     nuclear fuel.
(3)  Contribution  margin  represented  by net  income  before  financing  costs
     (net-of-tax) and preferred dividend requirements.
(4)  Cash flow before financing activities and strategic activities.
(5)  Return on net invested capital calculated as contribution margin divided by
     net invested capital.

                                       31
<PAGE>

ILLINOIS POWER GEOGRAPHIC INFORMATION

(Millions of dollars)
- --------------------------------------------------------------------------------
Year-To-Date September 30,                1999          1998
- --------------------------------------------------------------------------------
Revenues: (1)
     United States                      $1,526.7       $1,671.8
                                        ========       ========

(Millions of dollars)
- --------------------------------------------------------------------------------
September 30,                              1999        1998
- --------------------------------------------------------------------------------
Long-lived assets: (2)
     United States                       $4,473.6    $4,578.9
                                         ========    ========

(1)  Revenues  are  attributed  to  geographic  regions  based  on  location  of
     customer.
(2)  Long-lived   assets   include   plant,   equipment,   and   investments  in
     subsidiaries.

                                       32
<PAGE>

              ILLINOVA CORPORATION AND ILLINOIS POWER COMPANY

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS

        Certain   information   contained  in  this  report  is  forward-looking
information  based on  current  expectations  and plans that  involve  risks and
uncertainties.   Forward-looking   information  includes,  among  other  things,
statements  concerning the impact of regulatory  changes,  plans for the Clinton
facility,  and success in  addressing  Year 2000  issues;  as well as those that
include  the words  "expect,"  "intend,"  "predict,"  "estimate,"  "believe"  or
similar  language.  Although  Illinova  and  IP  believe  these  forward-looking
statements are accurate,  their  businesses are dependent on various  regulatory
issues,  general  economic  conditions and future trends,  and these factors can
cause actual results to differ  materially from the  forward-looking  statements
that have been made.

        The following factors,  in addition to those discussed elsewhere in this
report and in the Annual Report on Form 10-K for the fiscal year ended  December
31,  1998,  and  subsequent  securities  filings  could cause  results to differ
materially  from management  expectations  as suggested by such  forward-looking
statements:  the outcome of state and Federal regulatory  proceedings  affecting
the  restructuring  of the  electric and utility  industry;  the impact on IP of
current  regulations  providing  for rate  reductions  and the phasing in of the
opportunity  for some  customers to choose  alternative  energy  suppliers;  the
effects of  increased  competition  in the future due to,  among  other  things,
deregulation  of certain  aspects of IP's business at both the state and Federal
levels,  and the increasing  popularity of alternative  sources of  electricity,
such  as  co-generation  facilities;   the  effects  of  the  implementation  of
Illinova's  various  strategies  to best  respond to its  changing  business and
regulatory  environment,  including  potential  acquisitions,  focused growth of
unregulated  businesses and other options;  the fluctuating  electricity  supply
demands of IP customers,  which, if increased  beyond IP's generation  capacity,
might result in unplanned outages forcing IP to acquire  additional  supplies in
the  electricity   marketplace  at  uncertain  and  often  volatile  prices  and
availability;  changes  in prices  and costs of fuel;  various  financial  risks
attendant  to selling or shutting  down  Clinton;  ongoing  nuclear  operational
exposures  until  Clinton  is sold or shut down;  the effect of events  that can
occur  in  Illinova's  or  IP's  business  operations  or  in  general  economic
conditions that could negatively  impact its financial  flexibility and costs of
financing;  the impact of the sale or  shutdown  of  Clinton on IP's  ability to
issue  indebtedness  under  its  existing  mortgages;   the  impact  of  current
environmental  regulations on utilities and the expectation  that more stringent
requirements  will be introduced over time,  which are likely to have a negative
financial effect;  various factors affecting  non-utility  investments,  such as
IGC's  investments  in  foreign   countries,   which  are  subject  to  currency
fluctuations, cyclical and sustained economic downturns and political risks; the
inherent risks of active purchases and sales by Illinova, through IEP and IP, of
electricity  and natural gas futures and similar  contracts;  and the ability of
Illinova and IP, their vendors and others to manage Year 2000 issues.

        All  forward-looking  statements in this report are based on information
that  currently is available.  Illinova and IP disclaim any obligation to update
any forward-looking statement.

                                       33
<PAGE>

ILLINOVA SUBSIDIARIES

        IP, a subsidiary of Illinova,  engages in the generation,  transmission,
distribution  and sale of electric energy and the  distribution,  transportation
and  sale of  natural  gas in the  State of  Illinois.  IP has  publicly  traded
preferred shares outstanding but its common stock is wholly-owned by Illinova.

        IGC is Illinova's wholly-owned independent power subsidiary. IGC invests
in energy supply  projects  throughout the world and competes in the independent
power  market.  IGC's  strategy is to invest in and develop  "greenfield"  power
plants,   acquire  existing  generation   facilities  and  provide  power  plant
operations and maintenance.

        IEP is a wholly-owned  subsidiary of Illinova.  IEP develops and markets
energy-related products and services to the unregulated energy market throughout
the United  States and Canada and  engages in the  brokering  and  marketing  of
electric power and gas.

        IIC is a  wholly-owned  subsidiary  of Illinova  and was licensed by the
State of Vermont as a captive insurance company.  The primary business of IIC is
to insure certain risks of Illinova and its subsidiaries.

        IBE is a wholly-owned  subsidiary of Illinova and was created to account
for  miscellaneous  business  activities not regulated by the ICC or the Federal
Energy Regulatory Commission (FERC) and not falling within the business scope of
other Illinova subsidiaries.
IBE is currently inactive.

        IPMI is a  wholly-owned  subsidiary  of Illinova  created in April 1999,
which became the wholesale  generation and power marketing company to which IP's
fossil  generating  assets were transferred  effective  October 1, 1999. The ICC
approved the transfer of  generation  assets to IPMI on July 8, 1999.  On August
24, 1999, the FERC approved a power purchase  agreement between IP and IPMI, and
on September  10, 1999,  the FERC issued final  approval for the transfer of all
IP's fossil generating assets to IPMI.


MERGER AGREEMENT

        On June 14,  1999,  Illinova  and Dynegy  Inc.  (Dynegy)  announced  the
execution  of a  definitive  agreement  for the merger of  Illinova  and Dynegy,
creating  a  full  service  provider  of  energy  products  and  services.   The
combination  brings  together   Illinova's   strategically   positioned  Midwest
generating  facilities and developing national energy services and products with
Dynegy, a leading marketer of energy products and services in the country.  Both
Illinova and Dynegy are leading independent power developers and producers.  The
combined  company is  expected  to own more than  15,000  megawatts  of domestic
generating  capacity,  representing  the  world's  most  geographically  diverse
generating asset portfolio.

        Under terms of the merger agreement,  which were approved unanimously by
each  company's  board of directors,  a newly  established  parent  company will
acquire all of the shares of Dynegy and Illinova for a combination  of stock and
cash, subject to the satisfaction of certain pre-closing conditions.  On October
11, 1999, Illinova shareholders approved the merger. Eighty-five (85) percent of
the Illinova shares were voted, and of those voting, 83.44 percent voted for the
merger.  Dynegy's  shareholders  also  approved  the merger on October 11, 1999.
Also,  during the third  quarter,  the Federal  Trade  Commission  granted early
termination of the  Hart-Scott-Rodino  waiting  period.  However,  the merger is
still  conditioned,  among other  things,  on  completion of the pending sale of
Clinton to AmerGen, and approvals from the FERC and the ICC.

        Chuck  Watson,  Chairman  and Chief  Executive  Officer of Dynegy,  will
retain that title in the combined company. Charles Bayless, Chairman,  President

                                       34
<PAGE>

and Chief  Executive  Officer of  Illinova,  will  continue  as a  non-executive
director of the company.  The Board of Directors of the new company,  which will
be incorporated in Illinois and headquartered in Houston, Texas, will consist of
seven  members of the current  Illinova  Board and seven  members of the current
Dynegy Board,  including three designees of Chevron U.S.A., which currently owns
an approximate 25% interest in Dynegy. Illinova's regulated utility, IP, will be
a subsidiary and remain headquartered in Decatur, Illinois.

        Details  regarding the merger are  discussed  more fully in the Form S-4
filed by Energy  Convergence  Holding Company (the interim name for the combined
entity of Dynegy and Illinova) on August 11, 1999, SEC File No. 333-84965, which
is incorporated herein by reference.

DIVERSIFIED BUSINESS ACTIVITIES

        In February 1999, IEP, a wholly-owned subsidiary of Illinova,  purchased
the  Indiana-based  natural gas  management  operations  of Equitable  Resources
Marketing  Company.  Equitable  Resources  Marketing  (ERM) was a subsidiary  of
Equitable Resources,  Inc., (ERI) of Pittsburgh, PA. ERI is an integrated energy
company that produces, markets, and distributes natural gas and oil.

        In April 1999,  IEP also  purchased  Quality  Energy  Services  (QES), a
Tempe, Arizona-based natural gas marketing company.

        In May 1999,  IEP  purchased  the Chicago,  IL based  holdings of Energy
Dynamics, Inc., (EDI) an independent natural gas marketing firm based in Rolling
Meadows, Illinois.

        The 1998 combined  revenues of ERM, QES, and EDI were  approximately $67
million.

     Several IGC projects are experiencing  uncertainties in operational  and/or
financial  performance,  as a result  of such  events  or  trends  as  breach of
contract,  adverse government  action,  and adverse market conditions.  In those
instances  where  IGC  has  clear  legal  remedies,  the  remedies  may  not  be
enforceable.  The  uncertainties  could lead to significant  adverse  affects on
IGC's  financial  condition and results of operations,  if worst case  scenarios
prevail  in  every  project,   but  the   uncertainties,   and  their  potential
consequences, are too variable to quantify or predict at this time.


LIQUIDITY AND CAPITAL RESOURCES
     CAPITAL RESOURCES AND REQUIREMENTS

        Cash  flows  from  operations  during  the  first  nine  months of 1999,
supplemented  by external  financing and cash on hand,  were  sufficient to meet
ongoing  operating  requirements  and to service  existing  common and preferred
stock  dividends,   debt  requirements,   IP's  construction   requirements  and
Illinova's  investments  in its  subsidiaries.

        Illinova  expects to use future  operating cash flows,  supplemented  by
external  financing,  to meet operating  requirements and to continue to service
existing  debt,  IP's  preferred  and  Illinova  common  stock  dividends,   and
Illinova's  and  IP's  anticipated   subsidiary   investments  and  construction
requirements for the remainder of 1999.

        Illinova  currently has authority to issue an additional $130 million in
debt securities under an existing $300 million shelf registration. Illinova also
has in place a $130 million  Revolving Credit Agreement.  However,  covenants in
the Illinova  Revolving  Credit Facility limit total Illinova debt. The Illinova
Revolving Credit Agreement was amended in September 1999, raising the debt limit
from $350 million to $400 million.  At September 30, 1999,  $56.3 million of new

                                       35
<PAGE>

debt  capacity was  available.  Illinova  has entered into an agreement  for the
repurchase of $20 million of the 6.46% Illinova Medium Term Notes due 2002. This
repurchase is expected to close November 15, 1999. IP pays Illinova dividends on
the IP common stock held by Illinova to provide Illinova cash for operations. IP
is limited in its payment of  dividends by the Illinois  Public  Utilities  Act,
which  requires  retained  earnings  equal to or greater  than the amount of any
proposed  dividend  declaration or payment,  and by the Federal Power Act, which
precludes  declaration  or payment of  dividends by electric  utilities  "out of
money  properly  stated in a capital  account." In the first quarter of 1999, IP
did not declare or pay dividends on its common stock.  In June 1999, IP declared
and paid a common stock dividend of $19.5  million.  In August 1999, IP declared
and paid a common stock dividend of $21.4 million.  Based on the Board's current
dividend policy,  management  expects IP's retained earnings to be sufficient to
pay  Illinova a common  stock  dividend.  IP's  common  stock  dividend  paid to
Illinova  is  expected  to  be  sufficient  to  support  Illinova  common  stock
dividends. In light of the pending merger, the Illinova fourth quarter dividends
declaration will be reviewed by the Board of Directors at the December  meeting.
IP will continue to pay a preferred  dividend as  scheduled.  IP also is allowed
periodically  to repurchase  its common stock from  Illinova in accordance  with
authority granted by the ICC,  contingent on IP meeting certain cash flow tests.
IP currently does not satisfy this cash flow test and it is anticipated  that it
will not satisfy the test  throughout  1999.  This test would not interfere with
the  repurchases,  if  any,  of  Illinova  equity  shares  using  securitization
proceeds.  Illinova's  current  capacity  under the  existing  revolving  credit
agreement and shelf registration  should meet its cash requirements  through the
fourth quarter of 1999. Illinova is developing additional financing capabilities
to meet future needs,  including the use of proceeds from a planned $900 million
bridge financing by IPMI. This financing is expected to close in November, 1999.
See "Fossil Generation Filing" under "Regulatory  Matters" later in this section
on page 39 for  further  information  regarding  the IPMI  wholesale  generation
transfer.

        From the beginning of 1999,  through November 3, 1999, IP redeemed $57.1
million  of 8.75%  First  Mortgage  Bonds due 2021,  $229  million  of 8.00% New
Mortgage  Bonds due 2023,  $22.9 million of 7.95% First Mortgage Bonds due 2004,
$36.8 million of 6.50% First Mortgage Bonds due 1999, $79.1 million of 7.50% New
Mortgage Bonds due 2025, $10 million of 6.00% New Mortgage Bonds due 2003,  $4.3
million  of 6.25% new  mortgage  bonds due 2002,  along with  154,900  shares of
Monthly Income Preferred  Securities (MIPS) and 217,285 shares of various serial
preferred  stock  series.   These  securities  were  retired  using  funds  from
securitization proceeds received in December 1998.

        On July 20, 1999,  Illinois  Power's 1943 mortgage (First  Mortgage) was
retired.  All remaining  First  Mortgage debt was  substituted  with debt issued
under the 1992 Mortgage (New Mortgage) or defeased.  New Mortgage Bonds of $35.6
million with a coupon rate of 5.70% due 2024 (Series K) and $84.2 million with a
coupon  rate of 7.4% due 2024  (Series L) were  substituted  for First  Mortgage
Bonds  with  identical  terms and  amounts  (replacement  Series U and V).  With
proceeds received from the December 1998  securitization  issuance,  IP defeased
$35.2  million of 6.50% First  Mortgage  Bonds due 1999,  $16.1 million of 7.95%
First  Mortgage  Bonds due 2004 and $84.7 million of 7.375% First Mortgage Bonds
due 2021. On September 1, 1999,  the $35.2 million of 6.50% First Mortgage Bonds
matured.

        IP's capital  requirements  for  construction  were  approximately  $159
million and $190  million  during the nine months ended  September  30, 1999 and
1998,  respectively.  Through 2000,  IPMI plans to complete  improvements in its
generation facilities including pollution control equipment.  Illinova estimates
that it will  spend  approximately  $380  million  for IP and IPMI  construction
expenditures  in 1999. IP and IPMI  construction  expenditures  for 1999 through
2003 are expected to total  approximately $1.4 billion. In light of the December
1998  decision to exit Clinton and the  resulting  Clinton  impairment,  Clinton

                                       36
<PAGE>

capital  expenditures are expensed as incurred and are not included in the above
estimates. On March 2, 1999, in accordance with a lease agreement between IP and
IP Fuel Company,  IP paid $62.1 million for partially  depleted  nuclear fuel in
the Clinton  reactor to IP Fuel Company as a result of Clinton  Nuclear  Station
failing to restart by January 31, 1999.  The  liability for the nuclear fuel was
accrued as of December 31, 1998.  As part of the Clinton  impairment  entries at
year end,  nuclear  fuel was written down to the  expected  consumption  through
August 31, 1999. As a result of IP's  guarantee of IP Fuel Company debt, on July
15, 1999, IP paid off all $73.1 million of IP Fuel Company  commercial paper. On
September 7, 1999, IP paid an  additional  $400,000 to IP Fuel Company to ensure
payment at maturity to the noteholders of the IP Fuel $60 million 6.59% note, in
return for release of the lien on the remaining  portions of nuclear  fuel.  The
$60 million IP Fuel note matures December 1, 1999.  Following payment of the $60
million on December 1, 1999,  IP will have no  remaining  obligations  under its
lease obligation with IP Fuel.

        Additional   expenditures   may  be  required   during  this  period  to
accommodate   the  transition  to  a  competitive   environment,   environmental
compliance,  system upgrades, and other costs which cannot be determined at this
time.

        In addition to IP and IPMI construction expenditures, Illinova's capital
expenditures  for 1999  through  2003 are  expected to include  $486 million for
mandatory debt retirement.  In addition,  IPSPT has long-term debt maturities of
$86.4 million in each of the above years.

        On June 29, 1999, IP issued $250 million of Mortgage Bonds due 2009 with
an interest rate of 7.50%.  Proceeds were used to reduce outstanding  short-term
borrowings.  IP currently  has the authority to issue $500 million in short-term
debt,  which includes $354 million in committed  bank lines of credit.  Of these
authorized  amounts,  IP had $168.6  million at September 30, 1999, in remaining
capacity that may be utilized to issue commercial paper and extend floating rate
notes.  IP  anticipates  that this  liquidity  will be sufficient to address its
requirements  through the fourth  quarter of 1999. IP is  developing  additional
financial capabilities to meet future needs.

        Following the merger  announcement,  several rating  agencies  responded
with favorable outlooks on IP and Illinova credit quality. Standard & Poor's has
changed its outlook from stable to positive, and presently rates ILN at BBB- and
IP at BBB. Duff & Phelps has placed IP on Credit Watch-Up, with a present rating
of BBB+.  Moody's,  which rates IP bonds at Baal and ILN notes at Baa3, affirmed
its present ratings.


ACCOUNTING MATTERS

        For further  information on accounting issues, see "Accounting  Matters"
under  "Regulatory  and Legal Matters" of the "Notes to  Consolidated  Financial
Statements" on page 15 of this report.

        Effective October 1, 1999, all generating activity will be accounted for
in the  financial  statements  of IPMI  rather  than  those of IP.  For  further
information on IPMI, see "Fossil Generation  Filing" under "Regulatory  Matters"
on page 39 in this section.


CLINTON POWER STATION

        In  September  1996,  a leak in a  recirculation  pump  seal  caused  IP
operations  personnel to shut down Clinton.  Clinton returned to service May 27,
1999.

        The prolonged  outage at Clinton has had an adverse effect on Illinova's
and IP's financial  condition,  through  higher  operating and  maintenance  and

                                       37
<PAGE>

capital costs, lost  opportunities to sell energy,  and higher replacement power
costs.  In addition,  in March 1999, due to the failure of Clinton to restart by
January 31,  1999, a provision  in the lease  agreement  between IP and the Fuel
Company  required IP to pay $62.1 million cash for the  acquisition of core fuel
in March 1999,  to the Fuel  Company  Trustee for the  benefit of  investors  in
secured Notes of the Fuel Company.


PECO AND AMERGEN AGREEMENT

        On April 15, 1999, IP announced that it had reached an interim agreement
with AmerGen  Energy  Company  (AmerGen),  whereby  AmerGen  would  purchase and
operate  Clinton  and IP would buy at least 80  percent  in 1999 and at least 75
percent  during the years 2000 through 2004 of the plant's  electricity  output.
AmerGen is jointly owned by PECO Energy  Company (PECO) and British  Energy.  IP
also  announced  on April  15,  1999,  the  execution  of a  revised  management
agreement  (Agreement)  with PECO for the  operation of Clinton  retroactive  to
April 1, 1999.

        On July 1, 1999,  IP  announced  that it had signed a  definitive  asset
purchase  agreement  with AmerGen.  Basic terms for the sale remain  essentially
unchanged  from the  framework  proposed  in the  interim  agreement.  The asset
purchase  agreement,  signed June 30, 1999,  provides  that IP will  purchase at
least 75 percent of Clinton's  electricity output for its customers through 2004
at fixed prices which exceed current and projected wholesale prices.

        Terms of the interim agreement between PECO and IP will remain in effect
until the transaction  closes.  Specifically,  PECO is responsible for Clinton's
direct  operating  and  capital  expenses  and  continues  to  assist  with  the
management of the station under the existing management services contract, while
IP compensates  PECO for management  services based on the amount of electricity
the station produces. This eliminates IP's exposure to the uncertainty regarding
the costs associated with Clinton's operations.  In return for transferring this
financial  risk,  IP has  agreed  to pay PECO a  management  fee  calculated  by
multiplying  a fixed dollar  amount per MWH times 80 percent of the  electricity
generated  at Clinton  during the interim  period and to allow PECO to retain 20
percent of power  generation for its own use at no cost. The financial impact of
this obligation is contingent on two variables: (1) the capacity levels at which
Clinton  operates and (2) the prices at which the  electricity  can be sold from
time to time. Based on the terms of the revised management  agreement,  the fees
payable to PECO during the interim period have exceeded the 1999 Clinton-related
O&M and capital  costs for which PECO  assumed  full  responsibility  commencing
April 1, 1999.

        Under terms of the definitive asset purchase agreement, AmerGen will pay
up to $20 million for the plant and property and will assume full responsibility
and liability for operating and ultimately  decommissioning the nuclear station.
IP will transfer to AmerGen the existing  decommissioning  trust funds, expected
to total  approximately  $95  million  at the end of  1999.  IP will  also  make
additional payments to the decommissioning trust funds intended to be sufficient
to provide for the actual  decommissioning  of Clinton by 2026, when the plant's
operating license is scheduled to expire. These payments may be in the form of a
single  payment of up to $145  million at closing or one payment of up to $124.2
million at closing plus five annual payments of $5 million.

        Significant  income tax issues related to the funding of decommissioning
costs,  similar to those being  addressed with the Internal  Revenue  Service by
parties to other pending sales of nuclear generating stations,  must be resolved
to the mutual  satisfaction  of IP and  AmerGen.  The sale to  AmerGen  has been
approved by the ICC.  Additional  approvals  must be obtained from various other
regulatory  agencies  including the NRC and the FERC.  Approvals for transfer of
permits and licenses  must also be granted by numerous  agencies,  including the

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<PAGE>

Illinois  Environmental  Protection Agency,  the Illinois  Department of Nuclear
Safety,  the Illinois  Department of Natural  Resources,  and others.  Until all
approvals  are obtained and the parties  close on the sale,  IP will continue to
maintain the license for Clinton's  operation and retain the ultimate  operating
authority over the plant. The parties  anticipate that closing will occur before
the end of 1999.


REGULATORY MATTERS

     FOSSIL GENERATION FILING

        On August 24, 1999,  the FERC,  under Part 205 of the Federal Power Act,
approved IP's filing to put into place a Power Purchase  Agreement (PPA) between
IP and IPMI.  Also,  on  September  10,  1999,  the FERC,  under Part 203 of the
Federal  Power Act,  approved  IP's filing to transfer  all of IP's  non-nuclear
generating  facilities to its affiliate,  IPMI. These approvals,  along with the
previously received approval from the ICC, satisfied all regulatory requirements
related to the  formation of IPMI and the  transfer to IPMI of IP's  non-nuclear
generating assets. On October 1, 1999, IP sold all of its non-nuclear generating
facilities to Illinova which contributed these assets to IPMI.

     ATTORNEY GENERAL COMPLAINT

        On July 17,  1998,  a  complaint  against IP was filed at the ICC by the
office of the Illinois Attorney General. The complaint alleges that IP failed to
meet its  statutory  obligations  to provide  adequate and  reliable  service in
connection with last summer's electric supply situation (for further disclosure,
see "Power  Supply and  Reliability"  on page 46). It asked the ICC to conduct a
management audit of IP and sought an order requiring IP to offer compensation to
customers for voluntary conservation and service interruptions.  IP provided the
Attorney General with a reliability  report.  The Attorney General and IP agreed
on an  independent  committee  of two outside  experts to review the report.  In
June,  the  Attorney  General and IP signed a  settlement  agreement in which IP
agrees to provide three annual updates to the reliability report it submitted in
response to the complaint,  and agrees to maintain and in some cases  moderately
enhance  existing systems and maintenance  practices.  The parties filed a joint
motion to dismiss the  complaint on the basis of this  agreement,  which the ICC
unanimously  approved on July 28, 1999. There are no significant costs resulting
from  the   agreement.   Although   there  were  limited   calls  for  voluntary
conservation,  and  interruptible  customers  were  curtailed,  no firm load was
interrupted or curtailed during 1998.


     SOYLAND POWER COORDINATION AGREEMENT

        In March 1999, Soyland and IP signed a new Power Coordination  Agreement
(PCA) and  filed  this  agreement  with the FERC.  The new  agreement  no longer
obligates IP to provide  capacity and energy to Soyland with the  exception of a
small amount of capacity for the purpose of supplying  Soyland's load within the
IP Control Area.  Therefore,  the new PCA triggered the immediate recognition of
deferred  revenue  from the previous  Soyland  prepayment  of the base  capacity
charge.  This resulted in an increase in interchange  revenues of $61 million in
the first quarter of 1999.


     UNIFORM FUEL ADJUSTMENT CLAUSE (UFAC)

        Prior to March  1998,  the  costs of fuel for  electric  generation  and
purchased power costs were deferred and recovered from customers pursuant to the
UFAC. On March 6, 1998, IP initiated an ICC  proceeding to eliminate the UFAC in

                                       39
<PAGE>

accordance  with  P.A.  90-561.  A new base  fuel cost  recoverable  under  IP's
electric  tariffs was  established,  effective  on the date of the filing.  UFAC
elimination prevents IP from automatically passing cost increases through to its
customers and exposes IP to the risks and opportunities of cost fluctuations and
operating efficiencies.

        Under UFAC, IP was subject to annual ICC audits of its actual  allowable
fuel  costs.  Costs  could  be  disallowed,  resulting  in  negotiations  and/or
litigation  with the ICC. In 1998, IP agreed to  settlements  with the ICC which
closed  the  audits  for all  previously  disputed  years.  As a  result  of the
settlements,  IP electric customers received refunds totaling $27 million during
the first nine months of 1999. These refunds complete the process of eliminating
the UFAC at IP.


DEREGULATION RULEMAKINGS AND TARIFFS

        The Illinois Public Utilities Act was significantly  modified in 1997 by
P.A.  90-561,  but the ICC  continues  to have broad powers of  supervision  and
regulation  with  respect  to the rates and  charges  of IP,  its  services  and
facilities,  extensions or abandonment of service,  classification  of accounts,
valuation and depreciation of property, issuance of securities and various other
matters.  Before a significant plant addition may be included in IP's rate base,
the ICC must  determine  that the addition is  reasonable  in cost,  prudent and
useful in providing  utility  service to customers.  IP must continue to provide
bundled retail electric service to all who choose to continue to take service at
tariff rates, and IP must provide unbundled  electric  distribution  services to
all eligible  customers as defined by P.A.  90-561 at rates to be  determined by
the ICC.  During 1998,  pursuant to authority  granted in P.A.  90-561,  the ICC
issued  rules  associated  with (i)  transactions  between  the  utility and its
affiliates;  (ii) service reliability;  (iii) environmental disclosure; and (iv)
alternative  retail  electric  supplier  certification  criteria and procedures.
Through  the  third  quarter  of 1999,  the ICC ruled on (i) the rates and terms
associated with the provision of delivery services for commercial and industrial
customers;  (ii)  established  the  neutral  fact finder  price  utilized in (a)
calculating competitive transition costs and (b) IP's power purchase tariff; and
(iii) determined the competitive transition cost methodology.  During the fourth
quarter of 1999, it is expected  that the ICC will rule on guidelines  regarding
standards  of conduct and  functional  separation.  A  proceeding  was opened in
September  1999 to  address  the  issue of  unbundling  billing,  metering,  and
customer  handling  with a final  decision  to be  rendered  prior to the  third
quarter of the year 2000.

        Under the new rules,  Illinois  utilities must keep records  identifying
service interruptions experienced by each customer. Illinois utilities must also
file an annual report  detailing the  reliability  of its service and explaining
its plans for  reliability  improvements.  In  addition,  each utility must also
report the number  and causes of service  interruptions  that were due to causes
within the utility's  control.  Outage targets were  established  for service to
individual  customers and for system  performance.  IP's first Electric  Service
Reliability  Policy Annual Report was filed with the ICC's Chief Clerk's  Office
on June 1, 1999.  Subsequent  reliability  reports will be filed in June of each
year.

        The extent to which revenues are affected by P.A.  90-561 will depend on
a number of factors  including  future  market  prices for  wholesale and retail
energy,  load growth and demand levels in the current IP service territory,  and
success in marketing to customers outside IP's existing service  territory.  The
impact on net income will depend on, among other things,  the amount of revenues
earned and the cost of doing business.

                                       40
<PAGE>

     OPEN TRANSMISSION ACCESS AND COMPETITION

     In January 1998,  IP, in conjunction  with eight other  transmission-owning
entities,  filed  with  the FERC  for all  approvals  necessary  to  create  and
implement the Midwest Independent  Transmission System Operator, Inc. (MISO). On
September 16, 1998, the FERC issued an order authorizing the creation of a MISO.
The MISO has elected a seven-person independent board of directors. The goals of
this  joint  undertaking  are to:  1) put in  place a tariff  allowing  easy and
nondiscriminatory  access to transmission facilities in a multi-state region, 2)
enhance   regional   reliability  and  3)  establish  an  entity  that  operates
independently of any transmission  owner(s) or other market  participants,  thus
furthering  competition in the wholesale  generation  market consistent with the
objectives  of the  FERC's  Order  No.  888.  Since  January  1998,  four  other
transmission-owning  entities  joined  the  MISO.  Participation  in an  ISO  by
utilities  serving  retail  customers  in Illinois  was one of the  requirements
included in P.A. 90-561, enacted in 1997. The MISO has a stated goal to be fully
operational by January 1, 2001.

     As an MISO  member,  IP is  providing  guarantees  of up to $10  million to
facilitate  MISO access to bank lines of credit  during MISO  startup  phase for
buildings, personnel and startup capital.

     In September 1999, IP made a revised Open Access Transmission Tariff (OATT)
filing with the FERC,  requesting a rate decrease for transmission service based
on a  reclassification  of transmission  assets to  distribution  using the FERC
seven  factor  test.  The  reclassification  of assets and  changes in terms and
conditions  are  necessary  to  facilitate  retail  access  in  Illinois.   This
reclassification  decreased transmission assets by approximately $89 million. In
conjunction  with  the  seven  factor  reclassification,  the OATT  filing  also
included changes to the Company's  ancillary  service  charges.  IP requested an
effective date of October 1, 1999. IP is awaiting FERC approval.

     See "Open Access and Competition"  under  "Regulatory and Legal Matters" of
the "Notes to Consolidated  Financial  Statements" on page 14 of this report for
additional information.


YEAR 2000 DATA PROCESSING

        Passing  from  1999 into  2000  creates  a risk that  computer-dependent
processes will fail because the date will be read as "1900."  Illinova began its
Year 2000 (Y2K) project in November 1996. The project scope  encompasses  all of
Illinova's subsidiaries including IP, IPMI, IGC, and IEP. A central organization
provides overall project  guidance and  coordination  among the business groups,
meeting monthly to share information,  conducting internal project reviews,  and
producing  monthly  status  reports  to  all  levels  of  Illinova   management.
Bi-monthly  Year 2000  readiness  reports are provided to the Illinova  Board of
Directors.

        The Year 2000  project  involves  evaluation  and  testing of  software,
hardware,  and business  processes,  including  mainframe and personal  computer
software  and  hardware,  process  computer  software  and  hardware,  end  user
computing,  telecommunications and networks, vendor purchased packages, embedded
systems, facility control systems, vendors/supplies, financial institutions, and
electronic interfaces with outside agencies.

        The project is divided into two focus areas.  The first focus area deals
with information technology (IT) software,  hardware,  and infrastructure.  This

                                       41
<PAGE>

includes such items as the billing  system,  payroll  system,  accounts  payable
system, personal computers, telecommunications, networks, and mainframes.

        The second focus area targets non-IT  operational  systems and processes
which  encompass  most of the systems and business  processes  actually  used to
deliver  electricity and gas to customers.  This is also the area where embedded
systems  and  microprocessors  are found.  Included in this focus area are power
plant  facilities,  transportation  systems  such as railways  and barges,  fuel
suppliers,   electric  and  gas  transmission   and   distribution   facilities,
substations  and  transformers,  meters,  building  systems  such  as  HVAC  and
security, and financial institutions.

                                       42
<PAGE>

The overall status of Illinova's Y2K project is illustrated in the table below.
                                    Illinova Status
                                     October 1999

                                IT                         Non-IT
                          %        Completion  *         %       Completion  *
                       Complete       Date            Complete      Date

Awareness                100        02/01/97   a         100      05/31/98   a

Inventory                100        01/20/97   a         100      02/28/99   a

Assessment               100        05/09/97   a         100      02/28/99   a

Process Analysis         100        11/30/98   a         100      03/31/99   a

Implementation -
  (Mission Critical)     100        06/30/99   a         100      09/30/99   a

Implementation -
  (Important to
   Operations)           100        05/31/99   a         100      10/29/99   a

Contingency Planning     100        07/31/99   a         100      10/29/99   a

*"a" = Actual Completion Date

     IP has  completed  all  phases of its Year 2000  project.  The table  below
provides further details differentiating between IT and non-IT for IP alone.

                                       IP Status
                                    October 1999

                                IT                         Non-IT
                          %        Completion  *        %       Completion  *
                      Complete        Date           Complete       Date

Awareness               100        02/01/97   a        100      04/29/98   a

Inventory               100        01/20/97   a        100      07/31/98   a

Assessment              100        05/09/97   a        100      09/30/98   a

Process Analysis        100        11/30/98   a        100      02/28/99   a

Implementation -
  (Mission Critical)    100        06/30/99   a        100      07/19/99   a

Implementation -
  (Important to
   Operations)          100        05/31/99   a        100      10/29/99   a

Contingency Planning    100        07/31/99   a        100      06/30/99   a

*"a" = Actual Completion Date

        IT systems  (such as billing,  payroll,  etc.) and  infrastructure  were
completed  June 30, 1999.  The customer  billing  system,  materials  management
system, accounts payable system, power plant maintenance system, payroll system,
and shareholder  system have been  remediated and are now year 2000 ready.  Year
2000 work has not caused any IT projects to be delayed,  and thus no maintenance
costs have been deferred.

                                       43
<PAGE>

        The United  States  Department  of Energy  (DOE) has  charged  the North
American   Electric   Reliability   Council  (NERC)  with  taking  the  lead  in
facilitating North  American-wide  coordination of electric utilities' Year 2000
efforts.  The collective  efforts of the industry will minimize risks imposed by
Year 2000 to the reliable supply of  electricity.  NERC has in turn assigned the
regional  reliability  councils the responsibility of assessing their respective
networks to ensure reliable  electric supply. IP is taking an active role within
its regional  council  (MAIN) in  assessment  and  renovation of the grid and in
developing contingency plans to minimize any unexpected Year 2000 grid problems.
Illinois  Power  also  participated  in  NERC  drills.  IP's  power  plants  and
transmission  and  distribution  mission critical items are believed to be fully
Year 2000 ready.

        The  total  cost for  achieving  Year 2000  readiness  for  Illinova  is
estimated to be  approximately  $19.3 million  through 1999.  Through the end of
September 1999, $16.2 million, or 84% of the total $19.3 million had been spent.

        Contingency  plans  focus  on  Illinova's  "mission  critical"  business
processes.   Contingency  plans  were  developed  in  accordance  with  industry
guidelines,  such as NERC and the General Accounting Office, and involved senior
management review and approval.  These plans address business continuity and the
ability to deliver essential  products and services to customers in the event of
unexpected  Year  2000  problems.  Drills  are  being  conducted  to test  these
contingency plans.

        Illinova has assessed potential  worst-case scenarios and determined its
most reasonably likely  worst-case  scenario to be a severe winter storm coupled
with a  loss  of a  major  telecommunications  carrier  causing  disruptions  in
dispatching generation,  dispatching emergency response crews, and communicating
with financial institutions.

        Contingency plans address the above scenarios as well as other potential
scenarios  that could affect the ability to serve our customers and maintain the
financial viability of Illinova.


ENVIRONMENTAL MATTERS

U.S. ENVIRONMENTAL PROTECTION AGENCY COMPLAINT

        On November 3, 1999,  the U.S.  Environmental  Protection  Agency  (EPA)
issued a Notice of  Violation  (NOV)  against  IP and,  with the  Department  of
Justice (DOJ), filed a Complaint against IP in the U.S. District Court, Southern
District of Illinois,  No. 99C833.  Similar notices and lawsuits have been filed
against  a  number  of  other  utilities.  Both  the  NOV and  Complaint  allege
violations of the Clean Air Act and regulations  thereunder.  More specifically,
both  allege,  based  on  the  same  events,  that  certain  equipment  repairs,
replacements and maintenance activities at IP's three Baldwin Station generating
units constituted "major  modifications"  under either or both the Prevention of
Significant  Deterioration and the New Source Performance Standards regulations.
When  non-exempt  "major  modifications"  occur,  the Clean Air Act and  related
regulations  generally  require that  generating  facilities meet more stringent
emissions standards.

        The regulations  under the Clean Air Act provide  certain  exemptions to
the definition of "major  modifications,"  particularly an exemption for routine
repair, replacement or maintenance. Illinova has analyzed each of the activities
covered  by the  EPA's  allegations  and  believes  each  is  something  that is
regularly  done  throughout  the utility  industry as  necessary to maintain the
operational  efficiency and safety of the equipment.  As such Illinova  believes
that each of these  activities is covered by the  exemption for routine  repair,
replacement  and  maintenance  and that the EPA is changing,  or  attempting  to
change through enforcement actions, the intent and meaning of its regulations.

                                       44
<PAGE>

        Illinova also believes that,  even if some of the activities in question
were found not to qualify for the  routine  exemption,  there were no  increases
either in annual emissions or in the maximum hourly emissions  achievable at any
of the  units  caused  by any of the  activities.  The  regulations  provide  an
exemption for increased  hours of operation or production rate and for increases
in emissions resulting from demand growth.

        Although  none of IP's other  facilities is covered in the Complaint and
NOV, the EPA has officially requested information  concerning activities at IP's
Vermilion,  Wood  River and  Hennepin  plants.  It is  likely  that the EPA will
eventually commence enforcement actions against those plants as well.

        The EPA has the authority to seek  penalties for the alleged  violations
in  question at the rate of up to $27,500  per day for each  violation.  The EPA
also will be seeking  installation of "best available control technology" (BACT)
(or equivalent) at the Baldwin Station and possibly at the other three plants as
well.  Illinova's  estimates of the cost to install BACT are only preliminary at
this  time.  However,  a  significant  portion  of the  cost of BACT is  already
included in Illinova's  capital  budget in connection  with  previously  planned
pollution control upgrades.

     Illinova  believes  that EPA's  and DOJ's claims are totally  without merit
and, furthermore believes,  based on its current assessment including the advice
of its  expert  advisors,  that  there is no likely  outcome  that  would have a
material adverse affect on Illinova's operations or its financial performance.


     GAS MANUFACTURING SITES

        See  "Manufactured Gas Plant Sites" under "Regulatory and Legal Matters"
of the "Notes to Consolidated Financial Statements" on page 16 of this report.


NITROGEN OXIDE

        On October 27, 1998,  the U.S. EPA finalized  air  pollution  rules that
will require  substantial  reductions  of NOx emissions in Illinois and 21 other
states.  This rule will  require the  installation  of NOx controls by May 2003,
with each Illinois  utility's  exact  reduction  requirement  to be specified in
2000. Preliminary estimates of the capital expenditures required by IPMI in 2000
through 2003 to comply with these new NOx limitations  range from $60 million to
$140 million. NOx estimates are included in forecasted capital expenditures. The
legality  of this  proposal,  along  with its  technical  feasibility,  is being
successfully  challenged by a number of states,  utility groups,  and utilities,
including IP.

        EMISSION ALLOWANCE EXCHANGES

        The  value of  emission  allowances  expected  to be given up in  future
periods as the result of exchange  agreements  was recorded in the third quarter
1998 at the current market price and a liability of $9.8 million was recognized.
This  obligation will be adjusted as price  fluctuates  until the allowances are
surrendered.  The market  value and  recorded  liability  of the  allowances  at
September 30, 1999, was $9.8 million.

     GLOBAL WARMING

        On December 11, 1997,  international  negotiations to reduce  greenhouse
gas emissions  concluded with the adoption of the Kyoto Protocol.  This Protocol
requires the United States to reduce  greenhouse  gas emissions to 7% below 1999
levels  during  the  years  2008  through  2012 and to make  further  reductions
thereafter.  Before it can take effect,  this  protocol  must be ratified by the
United States Senate.  However,  United States Senate Resolution 98 which passed

                                       45
<PAGE>

95-0 in July 1997,  says the Senate would not ratify an agreement  that fails to
include  commitments for all countries or would damage the economy of the United
States.  Since the Protocol does not contain  these key  elements,  ratification
would be a major  political  issue. It is anticipated  that a ratification  vote
will be delayed until the current  administration feels the Protocol could pass,
or an attractive alternative to the Kyoto Protocol is found.

        IPMI will face major changes in the way it generates  electricity if the
Kyoto  Protocol  is  ratified,   or  if  the  Protocol's   reduction  goals  are
incorporated into other  environmental  regulations.  IPMI would have to repower
some  generating  units and change  from coal to natural  gas in other  units to
reduce  greenhouse gas emissions.  IPMI  estimates  that  compliance  with these
proposed   regulations  may  require  significant  capital  outlays  and  annual
operating  expenses  which could have a material  adverse impact on Illinova and
IP.


POWER SUPPLY AND RELIABILITY

        Electricity  was in short supply during the 1998 summer  cooling  season
because of an unusually high number of plant outages in the Midwest  region.  IP
bought generation and transmission capacity to prevent firm load curtailment and
took additional steps to avoid power outages,  including upgrading  transmission
lines and equipment,  readying  emergency  procedures,  and returning to service
five units that had been in cold shutdown.  This resulted in a material  adverse
financial impact on Illinova and IP.

        The electric energy market  experienced  unprecedented  prices for power
purchases  during the last week of June 1998. IP's power purchases for 1998 were
$517 million  higher than 1997 due to summer  price  spikes  resulting in a $274
million  increase in power  purchased,  additional  purchases of $215 million to
serve increased  volumes of interchange  sales, and market losses of $28 million
recorded on forward power purchase and sales  contracts as part of the wholesale
trading business.  Income from interchange sales was $382 million higher than in
1997 due to increased sales volumes and higher prices.

        Excluding Clinton,  IP has in excess of 400 MW of additional  generation
on line  beginning  the  summer  of 1999 as  compared  to  1998.  This  includes
approximately  235 MW from five oil-fired  units which were brought up from cold
shutdown  during the summer of 1998 and 176 MW from four  natural  gas  turbines
that IP installed which became  operational in June 1999. Total cost for the two
projects is  approximately  $87 million.  IP also  refurbished nine gas turbines
already in service at an  approximate  cost of $13  million.  In  addition,  the
restructuring  of the Soyland PCA  agreement  freed up an  additional  287 MW of
capacity.  Clinton  returned to full power operation on June 2, 1999,  providing
additional generating capacity to serve firm load.

                                       46
<PAGE>

RESULTS OF OPERATIONS

                 THREE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998

         Electric  Operations - Electric  revenues for the third quarter of 1999
decreased  $6.0 million  compared to the third quarter of 1998  primarily due to
the  15%  residential   rate  decrease   effective   August  1,  1998,  and  the
reclassification of revenue-related taxes mandated by deregulation  legislation.
Revenue-related  taxes are no longer accounted for in revenues or general taxes,
with no resultant  impact on net income.  The rate decrease  resulted in revenue
reductions  of $27.5  million and $18.5 million in the third quarter of 1999 and
1998, respectively. The impact of the reclassification of $13.7 million and $8.5
million in  revenue-related  taxes from  revenue  negatively  impacted  electric
revenues in the third quarter of 1999 and 1998, respectively.  Wheeling revenues
increased   approximately  $5  million  due  to  increased  capacity.   Electric
interchange revenues decreased $37.4 million. This decrease is attributable to a
decrease  in  interchange  volume  offset by $40.6  million of income to reflect
mark-to-market  for forward  contracts and options.  Power  purchased  decreased
$118.6 million due largely to decreased  interchange volume. During the quarter,
fuel for electric  plants  increased  $4.4 million due to increased  generation.
These  factors  combined  to  increase  electric  margin  $70.8  million for the
quarter.

         Kilowatt hour (kwh) sales to ultimate consumers  decreased 0.6% for the
quarter due to decreases of 0.8% and 2.0% in the  residential and the industrial
markets,  respectively,  offset by an increase of 2.4% in the commercial market.
Cooling degree days decreased  approximately  20% from 1998 which contributed to
the decrease in sales to the temperature-sensitive markets.

         The equivalent availability of Clinton was 96.4% and 0.0% for the three
months ended  September  30, 1999 and 1998,  respectively,  due to the return of
Clinton to full power on June 2, 1999. Clinton was previously unavailable due to
an outage which began  September 6, 1996. The equivalent  availability  for IP's
coal-fired  plants was 90.2% and 87.3% for the three months ended  September 30,
1999 and 1998, respectively.

         Gas  Operations - For the quarter,  gas margin  decreased $0.6 million.
Gas revenues  increased  $4.5 million due to  increased  therm sales  (excluding
transport) of 2.1%. Gas purchased costs increased $5.1 million due to the higher
gas prices and additional therms purchased.

        Operation and  Maintenance  Expenses - The current  quarter  increase of
$36.6  million is  primarily  due to the Clinton  management  fees paid to PECO,
partially offset by PECO's  assumption of Clinton's direct operating and capital
expenses.  For  more  information,  see  "PECO  and  AmerGen  Agreement"  of the
"Management's Discussion and Analysis" on page 38 of this report.

        Depreciation  and  amortization  -  The  decrease  in  depreciation  and
amortization  for the third  quarter of 1999  compared to 1998 was $6.1 million.
Due to the Clinton  impairment,  nuclear  depreciation  decreased  approximately
$23.7 million but was offset by approximately $16.5 million for the depreciation
of the adjustment to fair value for the fossil  generation  assets. In addition,
approximately  $1.5  million  in  expense  related  to the  amortization  of the
decommissioning  regulatory asset created as part of the 1998 Clinton impairment
was recognized in the third quarter.

        Diversified  enterprises -  Diversified  enterprise  revenues  increased
$116.5 million for the third quarter of 1999, which was offset by an increase in
diversified enterprise expenses of $116.5 million.

                                       47
<PAGE>

        Miscellaneous - net - Of the current  quarter  increase of $3.7 million,
$2.8 million is  attributed  to the  adjustment  in the net present value of the
decommissioning  regulatory asset.  Miscellaneous  interest revenues  increased,
including  $2.1 million of interest  received on a tax refund.  These items were
partially  offset by lower  revenues  from  non-utility  operations in the third
quarter.

        Interest  expense - The increase in interest expense of $14.8 million in
the third  quarter of 1999 is  primarily  the result of  interest  on  increased
long-term  debt of $8.2 million and the  adjustment  in the net present value of
the decommissioning  liability of $7.6 million,  offset by decreased interest on
short-term debt of $1.4 million.

        Earnings  per Common  Share - The  increase in earnings per common share
for  Illinova  during  the  third  quarter  of 1999 and 1998  resulted  from the
interaction  of all the  factors  discussed  herein  as well as fewer  shares of
common stock outstanding.

RESULTS OF OPERATIONS

                NINE MONTHS ENDED SEPTEMBER 30, 1999 AND 1998

        Electric  Operations  - Electric  revenues  for the first nine months of
1999  decreased  $55.3  million as  compared  to the first  nine  months of 1998
primarily due to the 15% residential rate decrease effective August 1, 1998, and
the   reclassification   of  revenue-related   taxes  mandated  by  deregulation
legislation.  Revenue-related  taxes are no longer  accounted for in revenues or
general taxes. The rate decrease resulted in revenue reductions of $59.6 million
and $18.5 million in the first nine months of 1999 and 1998,  respectively.  The
impact  of  the   reclassification   of  $34.8   million  and  $8.5  million  in
revenue-related  taxes from  revenue  for the first nine months of 1999 and 1998
respectively,   negatively   impacted  revenues.   Wheeling  revenues  increased
approximately  $5  million  due  to  increased  capacity.  Electric  interchange
revenues decreased $96.2 million. This decrease is attributable to a decrease in
interchange volume offset by $60.1 million of revenue recognition resulting from
the  restructuring  of a Soyland  Power  Cooperative  power supply  contract and
decreased  interchange  volume.  Power  purchased  decreased  $346.7 million due
largely to decreased  interchange volume. During the first nine months, fuel for
electric  plants  increased  $6.2  million due to  increased  generation.  These
factors combined to increase electric margin $189.1 million.

        Kilowatt hour (kwh) sales to ultimate  consumers  increased 1.6% for the
first nine months primarily due to increases of 1.5% and 3.6% in the residential
and  the  commercial  markets,  respectively.   Cooling  degree  days  decreased
approximately   25%  from   1998   which   contributed   to  the   decrease   in
temperature-sensitive markets, which was offset by an increase of 11% in heating
degree days.

        The equivalent  availability  of Clinton was 45.2% and 0.0% for the nine
months ended  September  30, 1999 and 1998,  respectively,  due to the return of
Clinton to full power on June 2, 1999. Clinton was previously unavailable due to
an outage which began  September 6, 1996. The equivalent  availability  for IP's
coal-fired  plants was 79.1% and 84.1% for the nine months ended  September  30,
1999 and 1998, respectively.

        Gas  Operations - For the nine months  ended  September  30,  1999,  gas
margin  increased  $0.2  million.  Gas  revenues  increased  $6.5 million due to
increased  therm sales of 6.9%  (excluding  transport),  caused by colder winter
weather.  Gas purchased costs  increased $6.2 million due to higher  consumption
and higher gas prices.

        Operation and Maintenance  Expenses - Of the $63.7 million  increase for
the first nine months of 1999, $29 million  occurred during the first quarter of

                                       48
<PAGE>

1999 due to  higher  operating  and  maintenance  expenses  associated  with the
Clinton  outage.  This $29 million  includes  $12.4 million of costs which would
have been considered capital additions had Clinton not been impaired. During the
third quarter operating and maintenance  expenses increased $36.6 million due to
Clinton  management fees paid to PECO,  partially offset by direct operating and
capital  expenses assumed by PECO. For more  information,  see "PECO and AmerGen
Agreement"  of the  "Management's  Discussion  and  Analysis" on page 38 of this
report.

        Depreciation  and  Amortization  -  The  decrease  in  depreciation  and
amortization  for the first nine  months of 1999 as  compared  to 1998 was $10.3
million.  Due  to  the  Clinton  impairment,   nuclear  depreciation   decreased
approximately  $71 million,  but was offset by approximately $53 million for the
depreciation of the adjustment to fair value for the fossil  generation  assets.
In addition,  approximately $5 million in expense related to the amortization of
the  transition  period cost recovery  asset and  approximately  $4.2 million in
expense related to the  amortization of the  decommissioning  regulatory  asset,
created as part of the  Clinton  impairment,  was  recognized  through the third
quarter.

        Diversified  enterprises -  Diversified  enterprise  revenues  increased
$127.6  million  for the  first  nine  months of 1999,  which  was  offset by an
increase in diversified  enterprise expense of $132.8 million.  The net increase
of diversified  enterprise expense over diversified  enterprise  revenues is due
primarily to merger related transaction costs.

        Miscellaneous  - net - Of  the  first  nine  months  increase  of  $19.6
million, $6.5 million is income from IGC investments not accounted for under the
equity  method.  Interest  income  increased  $6.1 million  primarily due to the
investment  of the proceeds of the  transitional  funding  trust notes issued in
December 1998,  the  adjustment in the net present value of the  decommissioning
regulatory asset, and miscellaneous interest receivables. Miscellaneous interest
receivables  included  $2.1  million of interest  income  associated  with a tax
refund.  A $4.9  million  increase  in  miscellaneous  non-operating  income  is
attributable   to  the   recognition   of  nontaxable   income  related  to  the
decommissioning  trust.  Revenues from  non-utility  operations  also  increased
during the first nine months of 1999.

        Interest  expense - The increase in interest expense of $32.2 million in
the first nine  months of 1999 is the  result of  additional  interest  of $13.8
million on increased  long-term debt, the adjustment in the net present value of
the decommissioning liability of $22 million, and increased amortization of debt
expense  and  loss on  reacquired  debt of $2.6  million,  offset  by  decreased
interest on short term debt of $6.2 million.

        Earnings  per Common  Stock - The  increase in earnings per common share
for  Illinova  during the first nine months of 1999 and 1998  resulted  from the
interaction  of all the  factors  discussed  herein  as well as fewer  shares of
common stock outstanding.


RESULTS OF OPERATIONS - ILLINOVA SEGMENTS OF BUSINESS

                     THREE MONTHS ENDED SEPTEMBER 30, 1999

Customer Service
For the three months ended September 30, 1999, both the contribution  margin and
cash  flow  measures  were  lower  than for the  corresponding  period  in 1998.
Contribution  margin is lower for the  quarter  by  approximately  $12  million,
primarily due to higher internal  charges paid to the Wholesale Energy Group and
Nuclear Group for the purchase of electricity.

                                       49
<PAGE>

Cash flow also  reflected a decrease of $38 million from 1998,  primarily due to
lower net income and a negative variance in working capital.

Transmission, Distribution and Sale of Electric Energy
The Customer  Service  Business  Group  derives its revenues  through  regulated
tariffs. Its source of electricity is the Wholesale Energy Group and the Nuclear
Group;  electricity  was provided to the Customer  Service  Business  Group at a
fixed 2.9 cents per kwh in 1999 and 2.5 cents per kwh in 1998.

Retail electric  revenues,  excluding  interchange  sales,  for the three months
ended September 30, 1999, were  approximately  1.5% lower than the corresponding
period in 1998.

Transmission, Distribution and Sale of Natural Gas
Revenues are derived through  regulated  tariffs.  During the three months ended
September 30, 1999,  revenues from gas sales and transportation were up by about
11.7%, due primarily to an increase in PGA revenues over 1998. The margin on gas
sales and transportation decreased 2.7% during the period, reflecting the higher
revenues and higher cost of gas purchases during the period.


Wholesale Energy
Contribution  margin  during the three months ended  September  30, 1999,  is $5
million  lower than during the  corresponding  period in 1998,  primarily due to
higher depreciation due to the write-up to market value of the fossil assets.

Cash flow  increased  approximately  $91 million,  primarily due to the sale and
lease-back  of  approximately  $80 million of gas turbines at the Tilton  Energy
Center.

Wholesale  Energy provided power to the Customer  Service  Business Group at 2.9
cents per kwh during the three months ended September 30, 1999,  compared to 2.5
cents per kwh during the corresponding period in 1998.


Nuclear
Both the contribution  margin and cash flow measures are higher in 1999 compared
to 1998.  Contribution  margin  is higher  than 1998 due to higher  intersegment
revenues  in 1999  related  to the plant  operation  in 1999  along  with  lower
depreciation, partially offset by higher operating expenses.

The net income increase in 1999 and the elimination of construction expenditures
in 1999 positively impacted cash flow.


Illinova Energy Partners, Inc.
For the three  months  ended  September  30, 1999,  the  contribution  margin is
comparable to the same period in 1998. Cash flow increased $4 million, primarily
due to a positive change in working capital.


Illinova Generating Company
For the three months ended September 30, 1999, the contribution  margin variance
from 1998 is a positive $1.4 million. Cash flow for three months ended September
30, 1999 was comparable to the same period in 1998.

Other
Included in this category are the Financial Business Group, the Support Services
Business  Group,  and Corporate.  These segments did not  individually  meet the
minimum threshold requirements for separate disclosure.  Collectively, cash flow

                                       50
<PAGE>

is the total of changes in assets and liabilities not directly assignable to the
business segments and the non-cash portion of income taxes (deferred).

See "Illinova Segments of Business" in the footnotes to the financial statements
on pages 19 - 26 for additional information.

RESULTS OF OPERATIONS - ILLINOIS POWER SEGMENTS OF BUSINESS

                   THREE MONTHS ENDED SEPTEMBER 30, 1999

Customer Service
For the three months ended September 30, 1999, both the contribution  margin and
cash  flow  measures  were  lower  than for the  corresponding  period  in 1998.
Contribution  margin is lower for the  quarter  by  approximately  $12  million,
primarily due to higher internal  charges paid to the Wholesale Energy Group and
Nuclear Group for the purchase of electricity.

Cash flow also  reflected a decrease of $38 million from 1998,  primarily due to
lower net income and a negative variance in working capital.


Transmission, Distribution and Sale of Electric Energy
The Customer  Service  Business  Group  derives its revenues  through  regulated
tariffs. Its source of electricity is the Wholesale Energy Group and the Nuclear
group;  electricity  was provided to the Customer  Service  Business  Group at a
fixed 2.9 cents per kwh in 1999 and 2.5 cents per kwh in 1998.

Retail electric  revenues,  excluding  interchange  sales,  for the three months
ended September 30, 1999, were  approximately  1.5% lower than the corresponding
period in 1998.


Transmission, Distribution and Sale of Natural Gas
Revenues are derived through  regulated  tariffs.  During the three months ended
September  30,  1999,  revenues  from  gas  sales  and  transportation  were  up
approximately 11.7%, due primarily to an increase in PGA revenues over 1998. The
margin  on gas  sales and  transportation  decreased  2.7%  during  the  period,
reflecting  the higher  revenues  and higher  cost of gas  purchases  during the
period.


Wholesale Energy
Contribution  margin  during the three months ended  September  30, 1999,  is $5
million  lower than during the  corresponding  period in 1998,  primarily due to
higher depreciation related to the write-up to market value of the fossil assets
and lower  revenues,  partially  offset by higher  purchased power costs in 1998
when the Company purchased  high-priced  electricity to meet system requirements
and off-system sale obligations.

Cash flow increased about $91 million,  primarily due to the sale and lease-back
of approximately $80 million of gas turbines at the Tilton Energy Center.

The Wholesale Energy Group provided power to the Customer Service Business Group
at 2.9 cents per kwh during the three months ended September 30, 1999,  compared
to 2.5 cents per kwh during the corresponding period in 1998.


Nuclear
Both the contribution  margin and cash flow measures are higher in 1999 compared
to 1998.  Contribution  margin  is higher  than 1998 due to higher  intersegment
revenues  in 1999  related  to the plant  operation  in 1999  along  with  lower
depreciation, partially offset by higher operating expenses.

                                       51
<PAGE>

The net income increase in 1999 and the elimination of construction expenditures
in 1999 positively impacted cash flow.


Other
Included in this category are the Financial Business Group, the Support Services
Business  Group,  and  other  corporate   functions.   These  segments  did  not
individually  meet the minimum threshold  requirements for separate  disclosure.
Collectively,  cash  flow  for  other is the  total of  changes  in  assets  and
liabilities  not directly  assignable to the business  segments and the non-cash
portion of income taxes (deferred).


See  "Illinois  Power  Segments of Business" in the  footnotes to the  financial
statements on pages 26 - 32 for additional information.


RESULTS OF OPERATIONS - ILLINOVA SEGMENTS OF BUSINESS

                     NINE MONTHS ENDED SEPTEMBER 30, 1999

Customer Service
For the nine months ended September 30, 1999, both the  contribution  margin and
cash  flow  measures  were  lower  than for the  corresponding  period  in 1998.
Contribution  margin is lower by  approximately  $59 million,  primarily  due to
decreased electric revenues as discussed below;  higher internal charges paid to
the Wholesale  Energy Group and the Nuclear Group due to higher usage and higher
internal  pricing,  higher  depreciation  expenses,  including  regulatory asset
amortization,   and  higher  operating  expenses.   Partially  offsetting  these
variances is a decrease in general taxes in 1999 compared to 1998 as a result of
a  reclassification  of revenue-related  taxes due to deregulation  legislation.
Revenue-related  taxes are now accounted  for as a liability,  and both revenues
and general taxes are reduced in 1999.

Cash flow is lower by $105  million,  due to decreased net income and a negative
variance   in  working   capital,   partially   offset  by  lower   construction
expenditures.

Transmission, Distribution and Sale of Electric Energy
The Customer  Service  Business  Group  derives its revenues  through  regulated
tariffs. Its source of electricity is the Wholesale Energy Group and the Nuclear
group;  electricity  was provided to the Customer  Service  Business  Group at a
fixed 2.9 cents per kwh in 1999 and 2.5 cents per kwh in 1998.

Retail electric revenues, excluding interchange sales, for the nine months ended
September 30, 1999,  decreased 5.7% over the corresponding period in 1998 due to
the 15% residential  decrease  mandated by P.A.  90-561,  which became effective
July 15, 1998,  voluntarily  advanced by IP from the statutory effective date of
August 1, partially offset by increased kwh sales to customers.

Transmission, Distribution and Sale of Natural Gas
Revenues are derived  through  regulated  tariffs.  During the nine months ended
September  30, 1999,  revenues from gas sales and  transportation  were up 3.1%,
while therms sold and transported  were up 4.6%. The increase in therm sales was
caused  by a return  to  normal  weather  after  the  milder-than-usual  weather
experienced in 1998. There was .2% change in gas margin during the period.


Wholesale Energy
Contribution  margin  during the nine months ended  September  30, 1999,  is $54
million   higher  than  during  the   corresponding   period  in  1998,  due  to
significantly  fewer  power  purchases  in 1999 than in 1998  when IP  purchased

                                       52
<PAGE>

extremely  high-priced  electricity  to  meet  system  requirements.   Partially
offsetting this major variance in power purchases are lower interchange sales in
1999,  and higher  depreciation  to reflect  the  write-up  of fossil  assets in
December 1998.

Cash flow is  significantly  less than 1998 ($169  million)  primarily  due to a
negative  variance in working  capital,  which is partially offset by higher net
income and the sale and lease-back of approximately  $80 million of gas turbines
at the Tilton Energy Center.

Wholesale  Energy provided power to the Customer  Service  Business Group at 2.9
cents per kwh during the nine months ended  September  30, 1999  compared to 2.5
cents per kwh during the corresponding period in 1998.


Nuclear
Both contribution  margin and cash flow are higher in 1999 than 1998. Net income
increased over last year due to increased  intersegment revenues in 1999 related
to the operation of the plant in 1999 and lower depreciation in 1999 as a result
of the write-off of nuclear facilities.

Cash flow was positively impacted by net income.


Illinova Energy Partners, Inc.
For the nine  months  ended  September  30,  1999,  the  contribution  margin is
comparable  to the same period in 1998.  Cash flow  decreased  about $4 million,
primarily related to changes in working capital.


Illinova Generating Company
For the nine months ended September 30, 1999, the contribution margin was higher
than 1998 by about $2 million.  Cash flow decreased  approximately  $19 million,
primarily due to changes in working capital.

Other
Included in this category are the Financial Business Group, the Support Services
Business  Group,  and Corporate.  These segments did not  individually  meet the
minimum threshold requirements for separate disclosure.  Collectively, cash flow
for other is the  total of  changes  in  assets  and  liabilities  not  directly
assignable  to the business  segments  and the non-cash  portion of income taxes
(deferred).

See "Illinova Segments of Business" in the footnotes to the financial statements
on pages 19 - 26 for additional information.


RESULTS OF OPERATIONS - ILLINOIS POWER SEGMENTS OF BUSINESS

                     NINE MONTHS ENDED SEPTEMBER 30, 1999

Customer Service
For the nine months ended September 30, 1999, both the  contribution  margin and
cash  flow  measures  were  lower  than for the  corresponding  period  in 1998.
Contribution margin is lower by $59 million, primarily due to decreased electric
revenues as discussed  below;  higher  internal  charges  paid to the  Wholesale
Energy  Group and the  Nuclear  Group due to higher  usage and  higher  internal
pricing, higher depreciation expenses,  including regulatory asset amortization,
and  higher  operating  expenses.  Partially  offsetting  these  variances  is a
decrease  in  general  taxes  in  1999  compared  to  1998  as  a  result  of  a
reclassification  of  revenue-related  taxes  due to  deregulation  legislation.
Revenue-related  taxes are now accounted  for as a liability,  and both revenues
and general taxes are reduced in 1999.

                                       53
<PAGE>

Cash flow is lower by $105  million,  due to decreased net income and a negative
variance   in  working   capital,   partially   offset  by  lower   construction
expenditures.

Transmission, Distribution and Sale of Electric Energy
The Customer  Service  Business  Group  derives its revenues  through  regulated
tariffs. Its source of electricity is the Wholesale Energy Group and the Nuclear
group;  electricity  was provided to the Customer  Service  Business  Group at a
fixed 2.9 cents per kwh in 1999 and 2.5 cents per kwh in 1998.

Retail electric revenues, excluding interchange sales, for the nine months ended
September 30, 1999 decreased 5.7% over the  corresponding  period in 1998 due to
the 15% residential  decrease  mandated by P.A.  90-561,  which became effective
July 15, 1998,  voluntarily  advanced by IP from the statutory effective date of
August 1, partially offset by increased kwh sales to customers.

Transmission, Distribution and Sale of Natural Gas
Revenues are derived  through  regulated  tariffs.  During the nine months ended
September  30, 1999,  revenues from gas sales and  transportation  were up 3.1%,
while therms sold and transported  were up 4.6%. The increase in therm sales was
caused  by a return  to  normal  weather  after  the  milder-than-usual  weather
experienced in 1998. There was .2% change in gas margin during the period.

Wholesale Energy
Contribution  margin  during the nine months ended  September  30, 1999,  is $54
million   higher  than  during  the   corresponding   period  in  1998,  due  to
significantly  fewer  power  purchases  in 1999 than in 1998  when IP  purchased
high-priced  electricity to meet system requirements.  Partially offsetting this
major  variance in power  purchases  are lower  interchange  sales in 1999,  and
higher depreciation to reflect the write-up of fossil assets in December 1998.

Cash flow is  significantly  less than 1998 ($169  million)  primarily  due to a
negative  variance in working  capital,  which is partially offset by higher net
income and the sale and lease-back of approximately  $80 million of gas turbines
at the Tilton Energy Center.

Wholesale  Energy provided power to the Customer  Service  Business Group at 2.9
cents per kwh during the nine months ended  September 30, 1999,  compared to 2.5
cents per kwh during the corresponding period in 1998.


Nuclear
Both contribution  margin and cash flow are higher in 1999 than 1998. Net income
increased over last year due to increased  intersegment revenues in 1999 related
to the operation of the plant in 1999 and lower depreciation in 1999 as a result
of the write-off of nuclear facilities.

Cash flow was positively impacted by net income.


Other
Included in this category are the Financial Business Group, the Support Services
Business  Group,  and Corporate.  These segments did not  individually  meet the
minimum threshold requirements for separate disclosure.  Collectively, cash flow
for other is the  total of  changes  in  assets  and  liabilities  not  directly
assignable  to the business  segments  and the non-cash  portion of income taxes
(deferred).

See  "Illinois  Power  Segments of Business" in the  footnotes to the  financial
statements on pages 26 - 32 for additional information.

                                       54
<PAGE>

ITEM 3. Quantitative and Qualitative Disclosures About Market Risk


RISK MANAGEMENT

        Illinova is exposed to both trading and  non-trading  market risks.  The
non-trading  market risks to which  Illinova is exposed  include  interest  rate
risk, equity price risk,  foreign currency risks, and commodity price risks. The
market  risk  due  to  trading  consists  primarily  of  commodity  price  risk.
Illinova's  risk  management  policy  allows  the  use of  financial  derivative
products,  like  futures,  swaps,  and  certain  types of  options to manage its
positions.  Illinova uses various approaches to measure and monitor market risk,
which include  Value-at-Risk (VaR) and position  sensitivity  measures to market
factors.  VaR is the maximum  potential loss that may be incurred on a portfolio
due to  adverse  movements  in  market  factors,  given a  confidence  level and
specified  holding  period.  VaR does not represent the expected nor the maximum
loss that may  actually  occur  since  gains and losses  may  differ  from those
estimated,  based on actual  fluctuations  in market  factors and changes in the
composition of the portfolio during a given evaluation period.

INTEREST RATE RISK

        Illinova is exposed to interest rate risk from its financing activities,
through issuance of fixed or  variable-rate  debt and acquisition of bank notes.
IP is likewise  exposed to interest  rate risk  resulting  from its  issuance of
fixed or variable-rate  debt,  commercial  paper, and bank notes.  Interest rate
exposure is managed in  accordance  with policy by  limiting  the  variable-rate
exposure to a certain  percentage of  capitalization.  Interest rate  derivative
instruments  are also used when deemed  appropriate to change the composition of
variable to fixed-rate component.  In addition, the sensitivity of the portfolio
to changes in market  factors like interest rate levels and  volatility are also
monitored.  At  September  30,  1999,  there  was no  interest  rate  derivative
instrument in use.

        Interest rate VaR is calculated based on a variance-covariance  approach
using the RiskMetrics FourFifteen(TM) model. A 95 percent confidence level and a
one-day  holding period is currently used. The interest rate risk as measured by
VaR at September 30, 1999, June 30, 1999, March 31, 1999, and December 31, 1998,
is given below.

- --------------------------------------------------------------------------------
                       Sep 30, 1999   Jun 30, 1999   Mar 31,1999   Dec 31,1998
- --------------------------------------------------------------------------------
(Millions of Dollars)       VaR            VaR            VaR           VaR

Illinova,
   including IP debt       $9.4           $7.9           $9.2         $14.9
IP debt only               $8.9           $7.3           $8.7         $14.2
- --------------------------------------------------------------------------------

        Contributing  factors to the  decrease in VaR since  December  31, 1998,
were the retirement of high coupon debt with maturities  extending past the year
2020 and an  increase  in  commercial  paper  levels  from that at year end.  At
December 31, 1998,  VaR was  unusually  high due to the issuance of  securitized
debt with the removal of called  bonds not  occurring  until after year end. The
securitized  debt has shorter  maturities  than the called bonds,  which further
contributed to the decrease in VaR.

                                       55
<PAGE>

COMMODITY PRICE RISK

Trading Positions

        Illinova  is exposed to  commodity  price  risk  through  IEP's and IP's
trading  activities.  Effective  October 1, 1999, IP's trading  activity will be
accounted   for  in  the  new   generation   subsidiary,   IPMI.   IEP   uses  a
variance-covariance  approach to calculate VaR,  similar to the  RiskMetrics(TM)
model, to monitor and control its market risk positions. IP measures,  monitors,
and manages its commodity  price risk using a proprietary  VaR model employing a
Monte Carlo simulation  technique.  IP and IEP both use a 95 percent  confidence
level and a five-day  holding  period to monitor their daily trading market risk
positions.  During the first quarter of 1999, the Board approved a change in the
risk management  policy,  to use a five day holding period instead of a four-day
period.  IP's and IEP's trading VaR at September 30, 1999, June 30, 1999,  March
31, 1999,  and December 31, 1998,  as restated  using a five day holding  period
follow:

- --------------------------------------------------------------------------------
                       Sep 30, 1999   Jun 30, 1999   Mar 31,1999   Dec 31,1998
- --------------------------------------------------------------------------------
(Millions of Dollars)       VaR            VaR            VaR           VaR

IP                         $0.7           $0.3           $0.6          $1.4
IEP                         0.1            0.1            0.1           0.1
- --------------------------------------------------------------------------------

        IP and IEP both use stress and scenario testing to control "event risk,"
(i.e., the risk that certain  stressful market events will occur and result in a
loss). In addition, option positions are monitored using sensitivity limits such
as delta  (sensitivity  to price change),  gamma  (sensitivity of delta to price
change), and vega (sensitivity to change in implied volatility).

Non-Trading Positions

        IP is also  exposed to  non-trading  commodity  price risk  through  its
energy generation business. Effective October 1, 1999, IP's non-trading activity
will be accounted for in the new generation  subsidiary,  IPMI. IP uses physical
contracts and is authorized to use financial  derivative  instruments  to manage
its native load  requirements.  To measure,  monitor,  and control the commodity
price risk of its  non-trading  portfolio,  IP uses the same  proprietary  Monte
Carlo model used in the trading portfolio.

        The Monte-Carlo  simulation process used in this VaR model generates the
power  price,  fuel price and load series that are used to value the  generation
assets, fuel assets, and contracts entered into by IP (e.g.,  tolling,  forward,
call and put options).  A  sophisticated  process is used to generate  daily and
hourly prices based on historical  price series and  volatility,  wherein "price
spikes," a recent  phenomenon in the electricity  markets,  are modeled into the
price series.  The VaR calculated by this model represents the maximum reduction
in operating margin given a 95 percent  confidence  level. This means that there
is only a 5 percent  probability that the reduction in operating margin from the
expected margin will be greater than what is provided by the VaR number. In this
model,  a sufficient  number of scenarios are  generated,  whereby each scenario
simulates a one-year margin (one-year  holding  period).  The expected margin is
obtained by averaging the margins calculated from all the simulation  scenarios.
The VaR is obtained by sorting the simulation results from the lowest to highest
value and taking the 95th percentile worst case value.

        Since the new VaR  methodology was implemented at the beginning of March
1999,  there is no comparable  VaR number at December 31, 1998.  The VaR for the
non-trading  portfolio at September 30, 1999,  June 30, 1999 and March 31, 1999,
using a  five-day  holding  period  is $5.6  million,  $4.9  million,  and $11.6
million, respectively.

                                       56
<PAGE>

        The overall IP electricity  portfolio is also controlled using quarterly
expected margin reduction  limits. In this process,  the difference  between the
current expected margin and last quarter's  expected margin is monitored against
the quarterly  limits.  To control  "event risk," IP measures the  "Stress-VaR,"
i.e., the VaR calculated using assumptions similar to the events that led to the
electricity  price spikes in June 1998. The  "Stress-VaR"  is monitored  against
stress limits that were approved by the Board of Directors.

FOREIGN OPERATIONS RISK

        Illinova's  foreign  operations risk is its inherent risk of loss due to
the potential  volatility  of emerging  countries  and  fluctuations  in foreign
currency  exchange rates in relation to the U.S. dollar.  At September 30, 1999,
IGC had invested $190 million in several international operations, many of which
are joint ventures.  Primarily,  these  investments  are with affiliates  owning
energy-related production, generation, and transmission facilities.

        IGC is exposed to  foreign  currency  risk,  sovereign  risk,  and other
foreign  operations risks,  primarily  through  investments in affiliates of $48
million in Asia and $139 million in South and Central America. To mitigate risks
associated with foreign currency fluctuations, the majority of contracts entered
into by IGC or its affiliates are denominated in or indexed to the U.S. dollar.


OTHER MARKET RISK

        Illinova  is  exposed  to equity  price risk  primarily  through  IP. IP
maintains  trust funds, as required by the NRC, to fund certain costs of nuclear
decommissioning. As of September 30, 1999, these funds were invested in domestic
and international equity securities,  fixed income securities, and cash and cash
equivalents.  By maintaining a portfolio that includes equity investments, IP is
maximizing the return to be used to fund nuclear  decommissioning,  which in the
long term will correlate better with inflationary  increases in  decommissioning
costs. The equity securities included in the Corporation's portfolio are exposed
to price  fluctuations in equity markets as a result of fluctuations in interest
rates and other  macroeconomic  variables.  Since the domestic equity portion of
the Nuclear  Decommissioning Trust portfolio is highly correlated to the S&P 500
index,  Illinova has sold S&P 500 futures contracts to mitigate the risk of this
portion of the portfolio  against a precipitous  drop in the equity markets.  At
September  30,  1999,  approximately  30  percent of the total  domestic  equity
portfolio had been  mitigated.  As of November 1, 1999, 100 percent of the total
domestic  equity  portfolio  has  been  mitigated.  Illinova  will  continue  to
opportunistically  mitigage the remaining portion of the equity portfolio when a
more favorable market level is reached.

IP actively  monitors  its  portfolio by  benchmarking  the  performance  of its
investments   against  equity  and  fixed-income   indexes.   It  maintains  and
periodically reviews established target allocations of the trust assets approved
in the investment  policy statement.  Excluding the S&P 500 futures  mitigation,
the VaR at September  30, 1999,  June 30, 1999,  and March 31, 1999,  calculated
based on a 95 percent confidence level and a one day holding period follows:

- --------------------------------------------------------------------------------
                            Sep 30, 1999       Jun 30, 1999       Mar 31, 1999
- --------------------------------------------------------------------------------
(Millions of Dollars)            VaR                VaR                VaR

IP                              $1.3               $1.4               $1.4
- --------------------------------------------------------------------------------

                                       57
<PAGE>

ITEM 6. Exhibits and Reports on Form 8-K

   (a)   Exhibits

         The Exhibits filed with this 10-Q are listed on the Exhibit Index.

(b) Reports on Form 8-K since June 30, 1999:

            Report filed on Form 8-K on July 12, 1999
                                 Item 5, Other Events: Press release: IP/
                                 AmerGen sign Definitive Agreement for
                                 Sale of Clinton. ICC approval of fossil
                                 generating subsidiary.

            Report filed on Form 8-K on July 16, 1999
                                 Item 5, Other Events: Press release:
                                 Illinova Releases 1999 Second Quarter
                                 Earnings.
                                 Item 7, Exhibits: Illinova Consolidated
                                 Income Statements.

            Report filed on Form 8-K on October 15, 1999
                                 Item 5, Other Events: Press Release:
                                 Illinova Releases 1999 Third Quarter
                                 Earnings
                                 Item 7, Exhibits:  Illinova Consolidated
                                 Income Statements.

                                       58
<PAGE>

SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                                 ILLINOVA CORPORATION
                                                 (Registrant)



                                                 /s/Larry F. Altenbaumer
                                                 ---------------------------
                                                 Larry F. Altenbaumer
                                                 Senior Vice President,
                                                 Chief Financial Officer,
                                                 Treasurer and Controller
                                                 On behalf of Illinova
                                                 Corporation







Date:  November 15, 1999

                                       59
<PAGE>

SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                                 ILLINOIS POWER COMPANY
                                                 (Registrant)



                                                 /s/Larry F. Altenbaumer
                                                 ---------------------------
                                                 Larry F. Altenbaumer
                                                 President on behalf of
                                                 Illinois Power Company





Date:  November 15, 1999

                                       60
<PAGE>

EXHIBIT INDEX

                                                           PAGE NO. WITHIN
                                                        SEQUENTIAL NUMBERING
EXHIBIT      DESCRIPTION                                       SYSTEM

12.1      Computation of ratio of earnings to fixed
          charges  for  Illinova Corporation.                     62

12.2      Computation of ratio of earnings to fixed
          charges for Illinois Power Company.                     63

27        Financial Data Schedule UT
          (filed herewith)


                                       61
<PAGE>

<TABLE>
<CAPTION>

                                                                                                                     Exhibit 12.1

                              ILLINOVA CORPORATION
                STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO
                                  FIXED CHARGES

                                                                                      Twelve                             Nine
                                                                                    Months Ended                     Months Ended
                                                                                      September                       September
(Thousands of Dollars)                                                            1999          1999 **                  1999
                                                                             ----------------------------           --------------

Earnings Available for Fixed Charges:
<S>                                                                          <C>             <C>                       <C>
Net Income (Loss)                                                            ($1,289,628)    ($1,289,628)              $91,070
    Add:
      Income Taxes:
         Current                                                                   2,045           2,045                19,196
         Deferred - Net                                                           48,481          48,481                64,300
      Allocated income taxes                                                     (26,886)        (26,886)              (26,547)
      Investment tax credit - deferred                                            (4,180)         (4,180)               (1,094)
      Income tax effect of CPS impairment                                     (1,014,047)     (1,014,047)                   -
      Equity earnings in subsidiaries                                            (17,778)        (17,778)               (6,921)
      Interest on long-term debt                                                 131,340         131,340               100,106
      Amortization of debt expense and
         premium-net, and other interest charges                                  46,837          46,837                41,344
      One-third of all rentals (Estimated to be
         representative of the interest component)                                 3,956           3,956                 2,703
      Interest on in-core fuel                                                     5,401           5,401                 4,424
      CPS Impairment                                                                  -        2,341,185                    -
                                                                             -----------    ------------             ---------
Earnings (loss) available for fixed charges                                  ($2,114,459)       $226,726              $288,581
                                                                             ===========    ============             =========

Fixed charges:
    Interest on long-term debt                                                  $131,340        $131,340               $63,375
    Amortization of debt expense and
      premium-net, and other interest charges                                     54,534          54,534                46,983
    One-third of all rentals (Estimated to be
      representative of the interest component)                                    3,956           3,956                 2,703
    Preferred stock dividend requirements                                         19,324          20,742                15,477
                                                                             -----------    ------------             ---------

Total Fixed Charges                                                             $209,154        $210,572              $128,538
                                                                             ===========    ============             =========

Ratio of earnings to fixed charges                                                  N/A *           1.08                  2.25
                                                                             ===========    ============             =========



  *  Earnings are inadequate to cover fixed charges.  Additional earnings (thousands)  $2,323,613 are required to
     attain a one-to-one ratio of Earnings to Fixed Charges.

 **  Supplemental ratio of earnings to fixed charges presented to exclude write-off related to Clinton Impairment.

                                       62
<PAGE>

</TABLE>

<TABLE>
<CAPTION>

                                                                                                                     Exhibit 12.2

                              ILLINOIS POWER COMPANY
                STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO
                                  FIXED CHARGES

                                                                                      Twelve                             Nine
                                                                                    Months Ended                     Months Ended
                                                                                      September                       September
(Thousands of Dollars)                                                            1999          1999 **                  1999
                                                                             ----------------------------           --------------

Earnings Available for Fixed Charges:
<S>                                                                          <C>             <C>                      <C>
Net Income (Loss)                                                            ($1,278,238)    ($1,278,238)             $102,883
    Add:
      Income Taxes:
         Current                                                                   2,045           2,045                19,196
         Deferred - Net                                                           48,481          48,481                64,300
      Allocated income taxes                                                     (18,325)        (18,325)              (17,361)
      Investment tax credit - deferred                                            (4,180)         (4,180)               (1,094)
      Income tax effect of CPS impairment                                     (1,014,047)     (1,014,047)                   -
      Interest on long-term debt                                                 120,760         120,760                92,419
      Amortization of debt expense and
         premium-net, and other interest charges                                  44,630          44,630                39,483
      One-third of all rentals (Estimated to be
         representative of the interest component)                                 3,956           3,956                 2,703
      Interest on in-core fuel                                                     5,401           5,401                 4,424
      CPS Impairment                                                                  -        2,341,185                    -
                                                                             -----------    ------------             ---------
Earnings (loss) available for fixed charges                                  ($2,089,517)       $251,668              $306,953
                                                                             ===========    ============             =========

Fixed charges:
    Interest on long-term debt                                                  $120,760        $120,760               $92,419
    Amortization of debt expense and
      premium-net, and other interest charges                                     52,327          52,327                45,123
    One-third of all rentals (Estimated to be
      representative of the interest component)                                    3,956           3,956                 2,703
                                                                             -----------    ------------             ---------

Total Fixed Charges                                                             $177,043        $177,043              $140,245
                                                                             ===========    ============             =========

Ratio of earnings to fixed charges                                                  N/A *           1.42                  2.19
                                                                             ===========    ============             =========



  *  Earnings are inadequate to cover fixed charges.  Additional earnings (thousands)  $2,266,560 are required to
     attain a one-to-one ratio of Earnings to Fixed Charges.

 **  Supplemental ratio of earnings to fixed charges presented to exclude write-off related to Clinton Impairment.

                                       63
<PAGE>

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                                           UT
<LEGEND>
     This schedule  contains summary  financial  information  extracted from the
     balance sheet, income statement,  and cash flow statement of Illinois Power
     Company and is qualified in its entirety by reference to the balance sheet,
     income statement, and cash flow statement of Illinois Power Company.

</LEGEND>
<CIK>                         0000049816
<NAME>                        Illinois Power Company
<SUBSIDIARY>
   <NUMBER>                   0
   <NAME>                     0
<MULTIPLIER>                                   1,000,000
<CURRENCY>                                     Default

<S>                             <C>
<PERIOD-TYPE>                   9-mos
<FISCAL-YEAR-END>                              Dec-31-1999
<PERIOD-START>                                 Jan-01-1999
<PERIOD-END>                                   Sep-30-1999
<EXCHANGE-RATE>                                1
<BOOK-VALUE>                                   Per-book
<TOTAL-NET-UTILITY-PLANT>                      4490
<OTHER-PROPERTY-AND-INVEST>                    2
<TOTAL-CURRENT-ASSETS>                         462
<TOTAL-DEFERRED-CHARGES>                       1086
<OTHER-ASSETS>                                 0
<TOTAL-ASSETS>                                 6040
<COMMON>                                       1088
<CAPITAL-SURPLUS-PAID-IN>                      0
<RETAINED-EARNINGS>                            51
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 1139
                          193
                                    47
<LONG-TERM-DEBT-NET>                           1944
<SHORT-TERM-NOTES>                             50
<LONG-TERM-NOTES-PAYABLE>                      0
<COMMERCIAL-PAPER-OBLIGATIONS>                 280
<LONG-TERM-DEBT-CURRENT-PORT>                  236
                      0
<CAPITAL-LEASE-OBLIGATIONS>                    0
<LEASES-CURRENT>                               0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 2151
<TOT-CAPITALIZATION-AND-LIAB>                  6040
<GROSS-OPERATING-REVENUE>                      1527
<INCOME-TAX-EXPENSE>                           83
<OTHER-OPERATING-EXPENSES>                     1245
<TOTAL-OPERATING-EXPENSES>                     1328
<OPERATING-INCOME-LOSS>                        199
<OTHER-INCOME-NET>                             32
<INCOME-BEFORE-INTEREST-EXPEN>                 231
<TOTAL-INTEREST-EXPENSE>                       128
<NET-INCOME>                                   103
                    13
<EARNINGS-AVAILABLE-FOR-COMM>                  90
<COMMON-STOCK-DIVIDENDS>                       0
<TOTAL-INTEREST-ON-BONDS>                      88
<CASH-FLOW-OPERATIONS>                         88
<EPS-BASIC>                                  0
<EPS-DILUTED>                                  0



</TABLE>


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