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Ameren (NYSE: AEE) Announces First Quarter 2013 Results

           Ameren (NYSE: AEE) Announces First Quarter 2013 Results

Issues Guidance for 2013 Earnings from Continuing Operations

- First Quarter 2013 EPS from Continuing Operations Were $0.22

- Merchant Generation Business Reflected as Discontinued Operations

- 2013 EPS from Continuing Operations Guidance Range Established at $2.00 to
$2.20

PR Newswire

ST. LOUIS, May 2, 2013

ST. LOUIS, May 2, 2013 /PRNewswire/ --Ameren Corporation (NYSE: AEE) today
announced first quarter 2013 net income from continuing operations of $54
million, or 22 cents per share, compared to first quarter 2012 net income from
continuing operations of $37 million, or 15 cents per share. With the March
2013 announcement of a definitive agreement to divest its merchant generation
business to an affiliate of Dynegy Inc. (NYSE:DYN), Ameren has classified the
results of this business as held for sale and as discontinued operations in
its first quarter 2013 financial statements.

The increase in first quarter 2013 earnings from continuing operations,
compared to first quarter 2012, reflected improved earnings from Ameren
Missouri and Ameren Illinois. Colder winter temperatures, which drove higher
electric and natural gas sales volumes; new rates for Ameren Missouri electric
and Ameren Illinois transmission service, both effective in January 2013; and
the absence in 2013 of a required donation associated with the implementation
of formula rates in Illinois all benefited 2013 earnings comparisons. These
favorable factors were partially offset by a reduction in Ameren Illinois
electric delivery service revenues as a result of variation in the timing and
amount of expected full-year recoverable costs under formula ratemaking and by
higher Ameren Missouri non-fuel operations and maintenance expenses.

"First quarter earnings from our rate-regulated utilities were in line with
our expectations reflecting colder winter temperatures and continued
disciplined cost management," said Thomas R. Voss, chairman, president and CEO
of Ameren Corporation. "Today, we are also establishing 2013 earnings guidance
for continuing operations in the range of $2.00 to $2.20 per share. The
presentation of guidance on a continuing operations basis reflects
classification of the merchant generation business as discontinued operations
in the first quarter.

"So far this year we have made significant progress on several fronts,
including an agreement to divest our merchant generation business, positioning
us to focus exclusively on our rate-regulated operations," Voss said.
"Furthermore, we have continued to deliver solid operating performance and
advanced plans to increase our investment in jurisdictions with modern,
constructive regulatory frameworks for the benefit of our customers,
communities and investors."

2013 Earnings Guidance
Ameren expects 2013 earnings from continuing operations to be in the range of
$2.00 to $2.20 per share. This guidance incorporates approximately 20 cents
per share of parent company and other costs, including certain costs which
were previously allocated to the merchant generation business. Ameren's 2013
earnings guidance for continuing operations assumes normal temperatures for
the remaining nine months of the year. In addition, this guidance is subject
to the effects of, among other things, completion of Ameren's announced
divestiture of the merchant generation business; the sale of the Elgin, Gibson
City, and Grand Tower gas-fired energy centers; regulatory decisions and
legislative actions; energy center operations; energy, economic, capital and
credit market conditions; severe storms; unusual or otherwise unexpected gains
or losses; and other risks and uncertainties outlined, or referred to, in the
Forward-looking Statements section of this press release.

Ameren Missouri Segment Results
Ameren Missouri segment first quarter 2013 earnings were $40 million, compared
to first quarter 2012 earnings of $21 million. The increase in earnings
reflected higher electric and natural gas sales volumes primarily due to
normal first quarter 2013 winter temperatures, compared to much
warmer-than-normal first quarter 2012 temperatures. First quarter earnings
rose approximately $17 million due to colder temperatures. Earnings also
benefited from new electric service rates effective in January 2013. These
favorable factors were partially offset by higher non-fuel operations and
maintenance expenses.

Ameren Illinois Segment Results
Ameren Illinois segment first quarter 2013 earnings were $31 million, compared
to first quarter 2012 earnings of $27 million. The increase in earnings
reflected higher electric and natural gas sales volumes due to normal first
quarter 2013 winter temperatures, compared to much warmer-than-normal first
quarter 2012 temperatures. First quarter earnings rose approximately $8
million due to colder temperatures. Earnings also benefited from new rates for
electric transmission and the absence in 2013 of a required donation
associated with the implementation of formula rates in Illinois. These
favorable factors were partially offset by a reduction in electric delivery
service revenues as a result of variation in the timing and amount of expected
full-year recoverable costs under formula ratemaking.

Parent Company and Other
Parent company and other costs reduced Ameren's earnings from continuing
operations by $17 million in the first quarter of 2013, compared to a
reduction of $11 million in the first quarter 2012. These parent company and
other costs include interest expense and certain other costs which were
previously allocated to the merchant generation business, as well as other
costs historically not allocated to Ameren's business segments.

Discontinued Operations
Ameren's net loss from discontinued operations was $199 million, or 82 cents
per share, in the first quarter of 2013, compared to a net loss from
discontinued operations of $440 million, or $1.81 per share, in the first
quarter of 2012. The net loss from discontinued operations was reduced in the
first quarter of 2013, compared to the same period in 2012, primarily as a
result of lower after tax asset impairment charges. In addition, the merchant
generation business had lower non-fuel operations and maintenance expenses in
the first quarter of 2013, compared to the first quarter of 2012. These
favorable factors were partially offset by lower realized sales prices.

For the first quarter of 2013, Ameren incurred a net loss of $145 million, or
60 cents per share, compared to a net loss of $403 million, or $1.66 per
share, for the first quarter of 2012. A reconciliation of Ameren's earnings
per share from continuing operations to net loss per share is as follows:

                                              First Quarter
                                              2013    2012
Earnings per share from continuing operations $ 0.22  $ 0.15
Loss per share from discontinued operations   (0.82)  (1.81)
Net loss per share                            $(0.60) $(1.66)

Analyst Conference Call
Ameren will conduct a conference call for financial analysts at 9 a.m. Central
Time on Thursday, May 2, to discuss first quarter 2013 earnings, 2013 guidance
and other matters. Investors, the news media and the public may listen to a
live Internet broadcast of the call at Ameren.com by clicking on "Q1 2013
Ameren Corporation Earnings Conference Call," followed by the appropriate
audio link. An accompanying slide presentation will be available on Ameren's
website. This presentation will be posted in the "Investors" section of the
website under "Webcasts & Presentations." The analyst call will also be
available for replay on the Internet for one year. In addition, a telephone
playback of the conference call will be available beginning at approximately
noon Central Time from May 2 through May 9, by dialing U.S. 877.660.6853 or
international 201.612.7415, and entering ID number 412951.

About Ameren
St. Louis-based Ameren Corporation serves 2.4 million electric customers and
more than 900,000 natural gas customers in a 64,000-square-mile area through
our Ameren Missouri and Ameren Illinois rate-regulated utility subsidiaries.
Ameren Illinois provides electric and natural gas delivery service while
Ameren Missouri provides vertically integrated electric service, with
generating capacity of 10,300 megawatts, and natural gas delivery service.
Ameren Transmission develops regional electric transmission projects. In March
2013, we entered into a definitive agreement to divest our Illinois-based
merchant generation business. For more information, visit
Ameren.com.

Forward-looking Statements
Statements in this release not based on historical facts are considered
"forward-looking" and, accordingly, involve risks and uncertainties that could
cause actual results to differ materially from those discussed. Although such
forward-looking statements have been made in good faith and are based on
reasonable assumptions, there is no assurance that the expected results will
be achieved. These statements include (without limitation) statements as to
future expectations, beliefs, plans, strategies, objectives, events,
conditions, and financial performance. In connection with the "safe harbor"
provisions of the Private Securities Litigation Reform Act of 1995, we are
providing this cautionary statement to identify important factors that could
cause actual results to differ materially from those anticipated. The
following factors, in addition to those discussed under Risk Factors in
Ameren's Form 10-K for the year ended December 31, 2012, and elsewhere in this
release and in our other filings with the Securities and Exchange Commission,
could cause actual results to differ materially from management expectations
suggested in such forward-looking statements:

  ocompletion of Ameren's announced divestiture of the merchant generation
    business and the sale of the Elgin, Gibson City, and Grand Tower gas-fired
    energy centers;
  oAmeren's exit from the merchant generation business, which could result in
    additional impairments of long-lived assets, disposal-related losses,
    contingencies, reduction of existing deferred tax assets, or could have
    other adverse impacts on the financial condition, results of operations
    and liquidity of Ameren;
  oregulatory approvals, including from the Federal Energy Regulatory
    Commission (FERC), the Federal Communications Commission, and the Illinois
    Pollution Control Board relating to, and the satisfaction or waiver of the
    conditions to, the divestiture of the merchant generation business;
  oregulatory, judicial, or legislative actions, including changes in
    regulatory policies and ratemaking determinations, such as the outcome of
    Ameren Illinois' natural gas rate case filed in 2013; the court appeals of
    Ameren Missouri's and Ameren Illinois' electric rate orders issued in
    2012; Ameren Missouri's fuel adjustment clause prudence review and the
    related request for an accounting authority order; Ameren Illinois'
    request for rehearing of a July 2012 FERC order regarding the inclusion of
    acquisition premiums in Ameren Illinois transmission rates; and future
    regulatory, judicial, or legislative actions that seek to change
    regulatory recovery mechanisms;
  othe effect of Ameren Illinois participating in a performance-based formula
    ratemaking process under the Illinois Energy Infrastructure Modernization
    Act (IEIMA), the related financial commitments required by the IEIMA and
    the resulting uncertain impact on the financial condition, results of
    operations and liquidity of Ameren Illinois;
  othe effects of, or changes to, the Illinois power procurement process;
  ochanges in laws and other governmental actions, including monetary,
    fiscal, and tax policies, including such changes that result in our being
    unable to claim all or a portion of the cash tax benefits that are
    expected to result from the divestiture of the merchant generation
    business;
  ochanges in laws or regulations that adversely affect the ability of
    electric distribution companies and other purchasers of wholesale
    electricity to pay their suppliers, including Ameren Missouri and Ameren
    Energy Marketing Company;
  othe effects of increased competition in the future due to, among other
    things, deregulation of certain aspects of our business at both the state
    and federal levels, and the implementation of deregulation;
  othe effects on demand for our services resulting from technological
    advances, including advances in energy efficiency and distributed
    generation sources, which generate electricity at the site of consumption;
  oincreasing capital expenditure and operating expense requirements and our
    ability to recover these costs;
  othe cost and availability of fuel such as coal, natural gas and enriched
    uranium used to produce electricity; the cost and availability of
    purchased power and natural gas for distribution; and the level and
    volatility of future market prices for such commodities, including the
    ability to recover the costs for such commodities;
  othe effectiveness of our risk management strategies and the use of
    financial and derivative instruments;
  othe level and volatility of future prices for power in the Midwest, which
    may have a significant effect on the financial condition of Ameren's
    merchant generation segment;
  obusiness and economic conditions, including their impact on interest
    rates, bad debt expense, and demand for our products;
  odisruptions of the capital markets, deterioration in our credit metrics,
    or other events that make our access to necessary capital, including
    short-term credit and liquidity, impossible, more difficult, or more
    costly;
  oour assessment of our liquidity, including liquidity concerns for Ameren's
    merchant generation business, and specifically for Ameren Energy
    Generating Company, whose ability to borrow additional funds from external
    third-party sources is restricted;
  othe impact of the adoption of new accounting guidance and the application
    of appropriate technical accounting rules and guidance;
  oactions of credit rating agencies and the effects of such actions;
  othe impact of weather conditions and other natural phenomena on us and our
    customers, including the impacts of droughts which may cause lower river
    levels and could limit our energy centers' ability to generate power;
  othe impact of system outages;
  ogeneration, transmission, and distribution asset construction,
    installation, performance, and cost recovery;
  othe effects of our increasing investment in electric transmission projects
    and uncertainty as to whether we will achieve our expected returns in a
    timely fashion, if at all;
  othe extent to which Ameren Missouri prevails in its claims against
    insurers in connection with its Taum Sauk pumped-storage hydroelectric
    energy center incident;
  othe extent to which Ameren Missouri is permitted by its regulators to
    recover in rates the investments it made in connection with additional
    nuclear generation at its Callaway Energy Center;
  ooperation of Ameren Missouri's Callaway Energy Center, including planned
    and unplanned outages, and decommissioning costs;
  othe effects of strategic initiatives, including mergers, acquisitions and
    divestitures, including the divestiture of the merchant generation
    business, and any related tax implications;
  othe impact of current environmental regulations on utilities and power
    generating companies and new, more stringent or changing requirements,
    including those related to greenhouse gases, other emissions and
    discharges, cooling water intake structures, coal combustion residuals,
    and energy efficiency, that are enacted over time and that could limit or
    terminate the operation of certain of our energy centers, increase our
    costs, result in an impairment of our assets, reduce our customers' demand
    for electricity or natural gas, or otherwise have a negative financial
    effect;
  othe impact of complying with renewable energy portfolio requirements in
    Missouri;
  olabor disputes, workforce reductions, future wage and employee benefits
    costs, including changes in discount rates and returns on benefit plan
    assets;
  othe inability of our counterparties and affiliates to meet their
    obligations with respect to contracts, credit agreements, and financial
    instruments;
  othe cost and availability of transmission capacity for the energy
    generated by Ameren's and Ameren Missouri's energy centers or required to
    satisfy energy sales made by Ameren or Ameren Missouri;
  olegal and administrative proceedings; and
  oacts of sabotage, war, terrorism, cybersecurity attacks or intentionally
    disruptive acts.

Given these uncertainties, undue reliance should not be placed on these
forward-looking statements. Except to the extent required by the federal
securities laws, we undertake no obligation to update or revise publicly any
forward-looking statements to reflect new information or future events.

AMEREN CORPORATION (AEE)
CONSOLIDATED STATEMENT OF INCOME (LOSS)
(Unaudited, in millions, except per share amounts)
                                                            Three Months Ended
                                                            March 31,
                                                            2013      2012
Operating Revenues:
Electric                                                    $1,088    $1,064
Gas                                                         387       348
Total operating revenues                                    1,475     1,412
Operating Expenses:
Fuel                                                        213       181
Purchased power                                             151       209
Gas purchased for resale                                    230       215
Other operations and maintenance                            399       369
Depreciation and amortization                               175       167
Taxes other than income taxes                               122       113
Total operating expenses                                    1,290     1,254
Operating Income                                           185       158
Other Income and Expenses:
Miscellaneous income                                        15        17
Miscellaneous expense                                       8         15
Total other income                                          7         2
Interest Charges                                            101       98
Income Before Income Taxes                                  91        62
Income Taxes                                               35        23
Income from Continuing Operations                           56        39
Loss from Discontinued Operations, Net of Tax               (199)     (442)
Net Loss                                                    (143)     (403)
Less: Net Income (Loss) Attributable to Noncontrolling
Interests:
Continuing Operations                                       2         2
Discontinued Operations                                     -         (2)
Net Income (Loss) Attributable to Ameren Corporation:
Continuing Operations                                       54        37
Discontinued Operations                                     (199)     (440)
Net Loss Attributable to Ameren Corporation                 $ (145)  $ (403)
Earnings (Loss) per Common Share – Basic and Diluted
Continuing Operations                                       $ 0.22   $ 0.15
Discontinued Operations                                     (0.82)    (1.81)
Net Loss per Common Share – Basic and Diluted               $ (0.60)  $ (1.66)
Average Common Shares Outstanding                           242.6     242.6



AMEREN CORPORATION (AEE)
CONSOLIDATED BALANCE SHEET
(Unaudited, in millions)
                                                  March 31,   December 31,
                                                  2013        2012
ASSETS
Current Assets:
Cash and cash equivalents                         $   161  $      184
Accounts receivable - trade, net                 479         354
Unbilled revenue                                  262         291
Miscellaneous accounts and notes receivable       70          71
Materials and supplies                            461         570
Mark-to-market derivative assets                  27          23
Current regulatory assets                         196         247
Current accumulated deferred income taxes, net    80          160
Other current assets                              60          75
Current assets of discontinued operations         1,500       1,600
Total current assets                              3,296       3,575
Property and Plant, Net                           15,408      15,348
Investments and Other Assets:
Nuclear decommissioning trust fund                437         408
Goodwill                                         411         411
Intangible assets                                 16          14
Regulatory assets                                 1,719       1,785
Other assets                                      665         668
Total investments and other assets                3,248       3,286
TOTAL ASSETS                                      $ 21,952   $    22,209
LIABILITIES AND EQUITY
Current Liabilities:
Current maturities of long-term debt              $   355  $      355
Accounts and wages payable                        341         533
Taxes accrued                                     91          50
Interest accrued                                  111         89
Customer deposits                                 110         107
Mark-to-market derivative liabilities             73          92
Current regulatory liabilities                    135         100
Other current liabilities                         163         168
Current liabilities of discontinued operations    1,198       1,166
Total current liabilities                         2,577       2,660
Long-term Debt, Net                               5,803       5,802
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes, net            3,235       3,166
Accumulated deferred investment tax credits       68          70
Regulatory liabilities                            1,667       1,589
Asset retirement obligations                      380         375
Pension and other postretirement benefits         1,113       1,138
Other deferred credits and liabilities            593         642
Total deferred credits and other liabilities      7,056       6,980
Ameren Corporation Stockholders' Equity:
Common stock                                      2           2
Other paid-in capital, principally premium on     5,614       5,616
common stock
Retained earnings                                 764         1,006
Accumulated other comprehensive loss              (15)        (8)
Total Ameren Corporation stockholders' equity     6,365       6,616
Noncontrolling Interests                          151         151
Total equity                                      6,516       6,767
TOTAL LIABILITIES AND EQUITY                      $ 21,952   $    22,209



AMEREN CORPORATION (AEE)
CONSOLIDATED STATEMENT OF CASH FLOWS
(Unaudited, in millions)
                                                            Three Months Ended
                                                            March 31,
                                                            2013       2012
Cash Flows From Operating Activities:
Net loss                                                    $(143)     $(403)
Loss from discontinued operations, net of tax               199        442
Adjustments to reconcile net loss to net cash provided by
operating activities:
Depreciation and amortization                               166        156
Amortization of nuclear fuel                                20         21
Amortization of debt issuance costs and premium/discounts   6          4
Deferred income taxes and investment tax credits, net       40         30
Allowance for equity funds used during construction         (8)        (9)
Stock-based compensation costs                              9          8
Other                                                      (3)        (5)
Changes in assets and liabilities:
Receivables                                                 (95)       93
Materials and supplies                                      91         79
Accounts and wages payable                                  (127)      (208)
Taxes accrued                                               41         22
Assets, other                                              52         19
Liabilities, other                                          65         23
Pension and other postretirement benefits                   3          41
Counterparty collateral, net                                26         (9)
Net cash provided by operating activities - continuing      342        304
operations
Net cash provided by operating activities - discontinued    37         79
operations
Net cash provided by operating activities                   379        383
Cash Flows From Investing Activities:
Capital expenditures                                        (275)      (245)
Nuclear fuel expenditures                                   (11)       (38)
Purchases of securities - nuclear decommissioning trust     (35)       (109)
fund
Sales and maturities of securities - nuclear                32         102
decommissioning trust fund
Other                                                       (2)        (2)
Net cash used in investing activities - continuing          (291)      (292)
operations
Net cash used in investing activities - discontinued        (12)       (19)
operations
Net cash used in investing activities                       (303)      (311)
Cash Flows From Financing Activities:
Dividends on common stock                                   (97)       (90)
Dividends paid to noncontrolling interest holders           (2)        (2)
Short-term debt, net                                        -          (22)
Advances received for construction                          -          1
Net cash used in financing activities - continuing          (99)       (113)
operations
Net cash used in financing activities - discontinued        -          -
operations
Net cash used in financing activities                      (99)       (113)
Net change in cash and cash equivalents                     (23)       (41)
Cash and cash equivalents at beginning of year              184        248
Cash and cash equivalents at end of period                  $ 161      $ 207



AMEREN CORPORATION (AEE)
OPERATING STATISTICS FROM CONTINUING OPERATIONS
                                               Three Months Ended
                                               March 31,
                                               2013       2012
Electric Sales - kilowatthours (in millions):
Ameren Missouri
    Residential                                3,802      3,273
    Commercial                                 3,518      3,352
    Industrial                                 2,079      2,080
    Other                                      34         33
    Native load subtotal                       9,433      8,738
    Off-system and wholesale                   1,488      2,124
    Subtotal                                   10,921     10,862
Ameren Illinois
    Residential
    Power supply and delivery service          1,974      2,648
    Delivery service only                      1,133      142
    Commercial
    Power supply and delivery service          696        781
    Delivery service only                      2,107      1,939
    Industrial
    Power supply and delivery service          428        407
    Delivery service only                      2,669      2,916
    Other                                      139        138
    Native load subtotal                       9,146      8,971
Eliminate affiliate sales                      (41)       -
    Ameren Total from Continuing Operations    20,026     19,833
Electric Revenues (in millions):
Ameren Missouri
    Residential                                $ 332      $ 255
    Commercial                                 244        206
    Industrial                                 99         86
    Other                                      14         28
    Native load subtotal                       689        575
    Off-system and wholesale                   43         61
    Subtotal                                   $ 732      $ 636
Ameren Illinois
    Residential
    Power supply and delivery service          $ 166      $ 270
    Delivery service only                      41         5
    Commercial
    Power supply and delivery service          52         69
    Delivery service only                      36         35
    Industrial
    Power supply and delivery service          15         15
    Delivery service only                      12         10
    Other                                      38         27
    Native load subtotal                       $ 360      $ 431
Eliminate affiliate revenues and other         (4)        (3)
    Ameren Total from Continuing Operations    $ 1,088    $ 1,064

AMEREN CORPORATION (AEE)
OPERATING STATISTICS FROM CONTINUING OPERATIONS, CONT'D
                                                    Three Months Ended
                                                    March 31,
                                                    2013       2012
Electric Generation - megawatthours (in millions):
                  Ameren Missouri                   11.0       11.2
Fuel Cost per kilowatthour (cents):
                  Ameren Missouri                   1.731      1.627
Gas Sales - decatherms (in thousands):
                  Ameren Missouri                   5,746      4,065
                  Ameren Illinois                   41,459     34,091
                  Ameren Total                      47,205     38,156

AMEREN CORPORATION (AEE)
OPERATING STATISTICS FROM DISCONTINUED OPERATIONS
                                                    Three Months Ended
                                                    March 31,
                                                    2013       2012
Electric Sales - kilowatthours (in millions):
  Energy sales                                      7,335      5,868
  Affiliate native energy sales                     623        534
  Subtotal                                          7,958      6,402
  Eliminate affiliate sales                         (623)      (534)
  Total from Discontinued Operations                7,335      5,868
Electric Revenues (in millions):
  Nonaffiliate energy sales                         $ 290      $ 243
  Affiliate native energy sales                     26         87
  Other                                             (19)       6
  Subtotal                                          $ 297      $ 336
  Eliminate affiliate revenues and other            (33)       (90)
  Total from Discontinued Operations                $ 264      $ 246
Electric Generation - megawatthours (in millions):
  Ameren Energy Generating Company (Genco)          5.3        4.3
  AmerenEnergy Resources Generating Company (AERG)  2.0        1.8
  Total from Discontinued Operations                7.3        6.1
Fuel Cost per kilowatthour (cents):                 2.417      2.439

AMEREN CORPORATION (AEE)
CONSOLIDATED FINANCIAL STATISTICS
                                                       March 31,  December 31,
                                                       2013       2012
Common Stock:
            Shares outstanding (in millions)           242.6      242.6
            Book value per share                       $ 26.23    $ 27.27
Capitalization Ratios:
            Common equity                              50.9%      52.0%
            Preferred stock                            1.1%       1.1%
            Debt, net of cash^(a)                      48.0%      46.9%
(a) Excludes cash and debt of discontinued
operations.

AMEREN CORPORATION (AEE)
OPERATING STATISTICS FROM CONTINUING OPERATIONS
                                               Three Months Ended
                                               March 31,
                                               2013          2012
Electric Sales - kilowatthours (in millions):
Ameren Missouri
    Residential                                3,802         3,273
    Commercial                                 3,518         3,352
    Industrial                                 2,079         2,080
    Other                                      34            33
    Native load subtotal                       9,433         8,738
    Off-system and wholesale                   1,488         2,124
    Subtotal                                   10,921        10,862
Ameren Illinois
    Residential
    Power supply and delivery service          1,974         2,648
    Delivery service only                      1,133         142
    Commercial
    Power supply and delivery service          696           781
    Delivery service only                      2,107         1,939
    Industrial
    Power supply and delivery service          428           407
    Delivery service only                      2,669         2,916
    Other                                      139           138
    Native load subtotal                       9,146         8,971
Eliminate affiliate sales                      (41)          -
    Ameren Total from Continuing Operations    20,026        19,833
Electric Revenues (in millions):
Ameren Missouri
    Residential                                $    332  $       255
    Commercial                                 244           206
    Industrial                                 99            86
    Other                                      14            28
    Native load subtotal                       689           575
    Off-system and wholesale                   43            61
    Subtotal                                   $    732  $       636
Ameren Illinois
    Residential
    Power supply and delivery service          $    166  $       270
    Delivery service only                      41            5
    Commercial
    Power supply and delivery service          52            69
    Delivery service only                      36            35
    Industrial
    Power supply and delivery service          15            15
    Delivery service only                      12            10
    Other                                      38            27
    Native load subtotal                       $    360  $       431
Eliminate affiliate revenues and other         (4)           (3)
    Ameren Total from Continuing Operations    $   1,088   $      1,064

AMEREN CORPORATION (AEE)
OPERATING STATISTICS FROM CONTINUING OPERATIONS, CONT'D
                                                    Three Months Ended
                                                    March 31,
                                                    2013       2012
Electric Generation - megawatthours (in millions):
                  Ameren Missouri                   11.0       11.2
Fuel Cost per kilowatthour (cents):
                  Ameren Missouri                   1.731      1.627
Gas Sales - decatherms (in thousands):
                  Ameren Missouri                   5,746      4,065
                  Ameren Illinois                   41,459     34,091
                  Ameren Total                      47,205     38,156

AMEREN CORPORATION (AEE)
OPERATING STATISTICS FROM DISCONTINUED OPERATIONS
                                               Three Months Ended
                                               March 31,
                                               2013          2012
Electric Sales - kilowatthours (in millions):
   Energy sales                                7,335         5,868
   Affiliate native energy sales               623           534
   Subtotal                                    7,958         6,402
   Eliminate affiliate sales                   (623)         (534)
   Total from Discontinued Operations          7,335         5,868
Electric Revenues (in millions):
   Nonaffiliate energy sales                   $    290  $       243
   Affiliate native energy sales               26            87
   Other                                       (19)          6
   Subtotal                                    $    297  $       336
   Eliminate affiliate revenues and other      (33)          (90)
   Total from Discontinued Operations          $    264  $       246
Electric Generation - megawatthours (in
millions):
   Ameren Energy Generating Company (Genco)    5.3           4.3
   AmerenEnergy Resources Generating Company   2.0           1.8
   (AERG)
   Total from Discontinued Operations          7.3           6.1
Fuel Cost per kilowatthour (cents):            2.417         2.439

AMEREN CORPORATION (AEE)
CONSOLIDATED FINANCIAL STATISTICS
                                                March 31,    December 31,
                                                2013         2012
Common Stock:
      Shares outstanding (in millions)          242.6        242.6
      Book value per share                      $   26.23  $      27.27
Capitalization Ratios:
      Common equity                             50.9%        52.0%
      Preferred stock                           1.1%         1.1%
      Debt, net of cash^(a)                     48.0%        46.9%
(a) Excludes cash and debt of discontinued
operations.



SOURCE Ameren Corporation

Website: http://www.ameren.com
Contact: Media, Brian Bretsch, +1-314-554-4135, bbretsch@ameren.com, or
Analysts, Doug Fischer, +1-314-554-4859, dfischer@ameren.com, Matt Thayer,
+1-314-554-3151, mthayer@ameren.com, Investors, Investor Services,
1-800-255-2237, invest@ameren.com