Document:

<Page>

(NOTE:   THIS TABLE OF CONTENTS IS NOT PART OF THE CINERGY CORP. ANNUAL
         INCENTIVE PLAN; INSTEAD, THIS TABLE OF CONTENTS IS MERELY FOR
         CONVENIENCE OF REFERENCE.)

                            TABLE OF CONTENTS

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                                                         Numbers
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INTRODUCTION......................................................1

ARTICLE 1 DEFINITIONS.............................................1
  1.1  "Actual Incentive".........................................1
  1.2  "Annual Performance Award".................................2
  1.3  "Annual Program"...........................................2
  1.4  "Beneficiary"..............................................2
  1.5  "Chief Executive Officer"..................................2
  1.6  "Cinergy"..................................................2
  1.7  "Cinergy's Board of Directors".............................2
  1.8  "Cinergy's Committee"......................................2
  1.9  "Corporate Target Goal"....................................2
  1.10 "Covered Employee".........................................3
  1.11 "Earnings".................................................3
  1.12 "Effective Time of the Mergers"............................4
  1.13 "Employee".................................................4
  1.14 "Employer".................................................4
  1.15 "Employer's Board of Directors"............................4
  1.16 "Exempt Employee"..........................................4
  1.17 "FLSA".....................................................4
  1.18 "Incentive Factor".........................................4
  1.19 "Individual Goal"..........................................5
  1.20 "Maximum Incentive"........................................5
  1.21 "Minimum Incentive"........................................5
  1.22 "1934 Act".................................................5
  1.23 "Non-Exempt Employee"......................................5
  1.24 "Nonqualified Deferred Compensation Plan"..................6
  1.25 "Participant"..............................................6
  1.26 "Performance Period".......................................6
  1.27 "Plan".....................................................6
  1.28 "Total Disability".........................................6
  1.29 "Union Employee"...........................................6
ARTICLE 2 EFFECTIVE DATE OF PLAN..................................7
ARTICLE 3 PURPOSE OF PLAN.........................................7
ARTICLE 4 EMPLOYER'S ELECTION TO PARTICIPATE IN PLAN..............8
</Table>

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<Table>
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ARTICLE 5 EFFECT OF PLAN ON OTHER PLANS...........................8
ARTICLE 6 ELIGIBILITY.............................................9
ARTICLE 7 ANNUAL PERFORMANCE AWARD...............................10
ARTICLE 8 CORPORATE TARGET GOALS AND INDIVIDUAL GOALS............11
ARTICLE 9 DISTRIBUTION...........................................12
ARTICLE 10 CONDITIONS TO ANNUAL PERFORMANCE AWARDS...............12
 10.1  Government Regulations....................................12
 10.2  Continued Employment......................................12
ARTICLE 11 BENEFICIARY...........................................14
ARTICLE 12 NON-ALIENATION OF BENEFITS............................15
ARTICLE 13 FUNDING POLICY AND METHOD.............................15
ARTICLE 14 CHANGE IN CONTROL.....................................15
ARTICLE 15 ADMINISTRATION........................................19
ARTICLE 16 MISCELLANEOUS.........................................20
 16.1  No Enlargement of Employee Benefits.......................20
 16.2  Notice of Address.........................................20
 16.3  No Individual Liability...................................21
 16.4  Delegation of Administrative Duties.......................21
 16.5  Governing Laws............................................21
 16.6  Risk of Participation.....................................21
 16.7  Headings..................................................21
ARTICLE 17 CONTRIBUTIONS.........................................22
ARTICLE 18 AMENDMENT AND TERMINATION.............................22
ARTICLE 19 CONTINUANCE BY A SUCCESSOR............................22
ARTICLE 20 COVERED EMPLOYEES.....................................22
</Table>

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                                 CINERGY CORP.
                              ANNUAL INCENTIVE PLAN
           (AS AMENDED AND RESTATED EFFECTIVE AS OF JANUARY 25, 2002)

                                  INTRODUCTION

       On October 18, 1994, Cinergy Corp. adopted a short-term incentive
compensation plan known as the "CINergy Corp. Annual Incentive Plan" (the
"Plan") for the exclusive benefit of eligible employees of Cinergy Corp. and its
subsidiaries (the "Employers"). Upon the "Effective Time of the Mergers" as
defined in this document, Cinergy Corp. became the holding company for PSI
Energy, Inc. and The Cincinnati Gas & Electric Company. The Plan allows the
Employers to implement annual incentive compensation programs in which certain
employees are granted awards payable in cash based upon the extent to which
certain predetermined goals are attained during the applicable calendar year.
The Plan was originally effective as of the Effective Time of the Mergers.
Effective as of January 25, 2002, the Plan is re-named the "Cinergy Corp. Annual
Incentive Plan" and is amended and restated in its entirety as set forth herein.

                                    ARTICLE 1

                                   DEFINITIONS

       Whenever used in this document, the following terms shall have the
respective meanings set forth below, unless a different meaning is plainly
required by the context:

       1.1 "Actual Incentive" means, with respect to each Participant, the
Minimum Incentive which, when adjusted in the manner set forth in Article 7
(Annual Performance Award), constitutes the percentage applied to a
Participant's Earnings as of the applicable date as determined by an Employer's
Board of Directors (or with respect to each Covered Employee, the

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AIP Committee (as defined in Article 20 (Covered Employees)) which is the actual
amount of incentive compensation opportunity available for a particular
Performance Period. However, a Participant's Actual Incentive may not exceed his
Maximum Incentive.

       1.2 "Annual Performance Award" means, with respect to each Participant,
the short-term incentive compensation award to which a Participant becomes
entitled upon the attainment of certain Corporate Target Goals and Individual
Goals for a particular Performance Period, and which is calculated in the manner
set forth in Article 7 (Annual Performance Award).

       1.3  "Annual Program" means, with respect to each Employer, the annual
short-term incentive compensation program adopted by that Employer's Board of
Directors to implement the Plan as set forth in Article 4 (Employer's Election
to Participate in Plan).

       1.4  "Beneficiary" means, with respect to each Participant, the recipient
designated by the Participant who is, upon the Participant's death, entitled in
accordance with the Plan's terms to receive the benefits to be paid with respect
to the Participant.

       1.5  "Chief Executive Officer" means the Employee elected by an
Employer's  Board of Directors to serve as the chief  executive  officer of that
Employer.

       1.6  "Cinergy" means Cinergy Corp., a Delaware corporation, and any
corporation which shall succeed to its business as described in Article 19
(Continuance by a Successor).

       1.7  "Cinergy's Board of Directors" means the duly constituted board of
directors of Cinergy on the applicable date.

       1.8  "Cinergy's Committee" means the duly designated Compensation
Committee of Cinergy's Board of Directors.

       1.9  "Corporate Target Goal" means an objective performance criterion
pertaining to an Employer's performance, efficiency, or profitability measured
by specified levels or of growth in one or more performance criteria including,
but without limitation, stock price, total

                                       -2-
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shareholder return, market share, sales, earnings per share, costs, operating
income, net income, cash flow, fuel cost per million BTU, cost per
kilowatt-hour, retained earnings, return on equity, return on assets, return on
capital employed, return on invested capital, return on sales, completion of
acquisitions, and other objective financial ratios used in determining whether a
Participant is entitled to receive an Annual Performance Award at the end of a
Performance Period. A Corporate Target Goal is considered objective if a third
party having knowledge of the relevant facts could determine whether the goal is
met.

       1.10 "Covered Employee" shall have the meaning set forth in Paragraph
162(m)(3) of the Internal Revenue Code of 1986, as amended (the "Code").

       1.11 "Earnings" means (a) with respect to an Exempt Employee, the amount
of the Employee's total annual base salary (based on the Employee's monthly base
salary received as remuneration for services performed for the Performance
Period, exclusive of any allowances, premiums, bonuses, overtime, or other forms
or types of compensation) for the Performance Period; provided, however, that
with respect to each Covered Employee, Earnings means the Covered Employee's
monthly base salary (exclusive of any allowances, premiums, bonuses, overtime,
or other forms or types of compensation) determined as of the first day of the
applicable Performance Period multiplied by 12, and (b) with respect to either a
Non-Exempt Employee or a Union Employee, the amount of the Employee's total
annual base wage (based on the Employee's hourly base rate of pay received for
services performed for the Performance Period, exclusive of any allowances,
premiums, bonuses, overtime, or other forms or types of compensation) for the
Performance Period. Notwithstanding the preceding sentence, a Participant's
"Earnings" for a Performance Period shall be increased by the amount of any
nonelective contribution (other than a matching contribution) made on behalf of
such Participant under the Cinergy Corp. 401(k) Excess Plan (as amended from
time to time) for such

                                       -3-
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Performance Period but only to the extent that Cinergy's Committee (or any
committee to which it has delegated such authority) specifies that such
nonelective contribution will be included in "Earnings" under this Plan, which
specification must be made for any Covered Employee within the time necessary to
satisfy the requirements of Code Subsection 162(m).

       1.12 "Effective Time of the Mergers" means "Effective Time" as defined
in the Amended and Restated Agreement and Plan of Reorganization by and among
The Cincinnati Gas & Electric Company, PSI Resources, Inc., PSI Energy, Inc.,
CINergy, and CINergy Sub, Inc., dated as of December 11, 1992, as subsequently
amended and restated.

       1.13 "Employee" means any person who, at any time on or after the
Effective Time of the Mergers, is (a) in the employ of an Employer, (b) in the
employ of an Employer, but whose time is allocated 100 percent to another
Employer, or (c) in the employ of an Employer, but who is assigned full-time to
another Employer.

       1.14 "Employer" means Cinergy and all of its directly or indirectly held
majority or greater-owned subsidiaries.

       1.15 "Employer's Board of Directors" means the duly constituted board of
directors of an Employer on the applicable date, or its designee.

       1.16 "Exempt Employee" means an Employee who is regularly employed by his
Employer for 30 or more hours per week, whose pay is customarily computed on a
monthly basis, and whose employment is not subject to FLSA overtime and record
keeping provisions.

       1.17 "FLSA" means the Fair Labor Standards Act of 1938, as amended from
time to time, and interpretive rulings and regulations.

       1.18 "Incentive Factor" means the numerical variable assigned by an
Employer's Board of Directors which corresponds to the extent to which a
Corporate Target Goal or an Individual Goal has been met for a particular
Performance Period.

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       1.19 "Individual Goal" means an objective or subjective performance
criterion pertaining to individual effort as to enhancement of either individual
performance or achievement or attainment of Corporate Target Goals or other
Individual Goals used in determining whether a Participant is entitled to
receive an Annual Performance Award at the end of a Performance Period. An
Individual Goal is considered objective if a third party having knowledge of the
relevant facts could determine whether the goal is met; otherwise an Individual
Goal is considered subjective.

       1.20 "Maximum Incentive" means, with respect to each Participant, the
percentage applied to a Participant's Earnings as of the applicable date
determined by an Employer's Board of Directors to be the appropriate maximum
incentive compensation opportunity for a particular Performance Period.

       1.21 "Minimum Incentive" means, with respect to each Participant, the
percentage applied to a Participant's Earnings as of the applicable date
determined by an Employer's Board of Directors to be the appropriate minimum
incentive compensation opportunity for a particular Performance Period.

       1.22 "1934 Act" means the Securities Exchange Act of 1934, as amended
from time to time, and interpretive rulings and regulations.

       1.23 "Non-Exempt Employee" means an Employee who is regularly employed by
his Employer for 30 or more hours per week, whose pay is customarily computed on
an hourly, weekly, or bi-weekly basis, whose employment is subject to FLSA
overtime and record keeping provisions, and who is not assigned to an employment
position covered by a collective bargaining agreement to which his Employer is a
party.

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       1.24 "Nonqualified Deferred Compensation Plan" means the nonqualified
deferred compensation arrangement known as the "Cinergy Corp. Nonqualified
Deferred Incentive Compensation Plan," as amended from time to time, and any
successor plan thereto.

       1.25 "Participant" means any Exempt Employee, Non-Exempt Employee, or
Union Employee selected by an Employer's Board of Directors to participate in
the Employer's Annual Program pursuant to Article 6 (Eligibility).

       1.26 "Performance Period" means the period of time over which performance
with respect to a Corporate Target Goal or an Individual Goal is measured. Each
Performance Period shall consist of a one-year period beginning on January 1 of
each calendar year and ending on December 31 of the same calendar year. The term
"Performance Period" shall include any performance period in effect under the
"PSI Resources, Inc. Annual Incentive Plan," as amended from time to time, and
the "PSI Energy, Inc. Annual Incentive Plan," as amended from time to time, as
of the Effective Time of the Mergers.

       1.27 "Plan" means the short-term incentive compensation plan known as the
"Cinergy Corp. Annual Incentive Plan," as amended from time to time.

       1.28 "Total Disability" means, with respect to any Participant, a mental
or physical condition as result of an illness or injury which, in the judgment
of an Employer's Board of Directors, based upon medical reports and other
evidence satisfactory to the Employer's Board of Directors prevents the
Participant from engaging in any gainful occupation for which the Participant is
reasonably qualified by reason of education, training, or experience.

       1.29 "Union Employee" means an Employee who is regularly employed by his
Employer for 30 or more hours per week, whose pay is customarily computed on an
hourly, weekly, or bi-weekly basis, whose employment is subject to FLSA overtime
and record keeping

                                       -6-
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provisions, and who is assigned to an employment position covered by a
collective bargaining agreement to which his Employer is a party.

         The uses of singular and masculine words are for practical purposes
only and shall be deemed to include the plural and feminine, respectively,
unless the context plainly indicates a distinction. Certain other definitions,
as required, appear in the following Articles of the Plan.

                                    ARTICLE 2

                             EFFECTIVE DATE OF PLAN

       The Plan's provisions, as amended and restated as set forth in this
document, are effective as of January 25, 2002 and shall be applicable only to
Annual Programs adopted on or after such date for Performance Periods commencing
on or after January 1, 2002. The provisions of the Plan as in effect on January
24, 2002 shall be effective for all other Annual Programs.

                                    ARTICLE 3
                                 PURPOSE OF PLAN

       The Plan's purposes are to benefit Employers, shareholders, and
ratepayers by the accomplishment of specific challenging and demanding corporate
or personalized goals, enhancement of teamwork, motivation, high achievement,
and the attraction and retention of qualified Employees. Upon the accomplishment
of these corporate or personalized goals, the Plan provides a reward for
performance and maximum effort by Employees who contribute to an Employer's
success. The Plan is an annual incentive compensation plan in which an Exempt
Employee, a Non-Exempt Employee, or a Union Employee who is selected to
participate in an Employer's Annual Program under the Plan is granted an award
payable in cash, but only to the extent that certain predetermined goals are
attained during the applicable calendar year used to measure performance.

                                       -7-
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                                    ARTICLE 4

                   EMPLOYER'S ELECTION TO PARTICIPATE IN PLAN

       Each Employer, by action of the Employer's Board of Directors, may elect
to participate in the Plan by adopting an Annual Program. Each Employer's Annual
Program shall consist of Corporate Target Goals, Individual Goals, Actual
Incentives, Incentive Factors, Maximum Incentives, and Minimum Incentives which
will further the Employer's business objectives consistent with the Plan's
purposes. An Employer's Annual Program may be based solely on Corporate Target
Goals, Individual Goals, or a combination of both Corporate Target Goals and
Individual Goals. The determinations made by an Employer's Board of Directors
under this Article shall be subject to approval by Cinergy's Committee before
any Annual Performance Awards are made.

                                    ARTICLE 5

                          EFFECT OF PLAN ON OTHER PLANS

       At the Effective Time of the Mergers, the short-term incentive
compensation plans for PSI Energy, Inc. and PSI Resources, Inc. known
respectively as the "PSI Energy, Inc. Annual Incentive Plan" adopted effective
January 1, 1987, as amended from time to time, and the "PSI Resources, Inc.
Annual Incentive Plan" adopted effective as of January 1, 1991, were merged into
the Plan and entitlement to any awards shall be administered in accordance with
the Plan. In addition, employees of The Cincinnati Gas & Electric Company as of
the Effective Time of the Mergers were eligible to participate on a prorated
basis in the Performance Period in effect at the Effective Time of the Mergers;
provided, however, that any such employee satisfied the eligibility requirements
of Article 6 (Eligibility).

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                                    ARTICLE 6

                                   ELIGIBILITY

       (a) The group of Employees eligible to participate in the Plan shall
consist of Exempt Employees, Non-Exempt Employees, and Union Employees who have
the potential to contribute to an Employer's future success.

       (b) From time to time, the Chief Executive Officer of an Employer may
recommend to the Employer's Board of Directors that any eligible Employee (other
than a Covered Employee) participate in an Annual Program under the Plan. After
reviewing the recommendations, and after considering the duties of each
recommended Employee, his present and potential contribution to the Employer's
success, his other compensation provided by his Employer, and any other factors
as it deems relevant, the Employer's Board of Directors shall select those
Employees who will participate in its Annual Program under the Plan.
Notwithstanding the foregoing, the AIP Committee (as defined in Article 20
(Covered Employees)) shall select those Covered Employees who will participate
in the Plan. When an eligible Employee becomes a Participant in an Employer's
Annual Program under the Plan at other than the beginning of a Performance
Period, the amount of any Annual Performance Award to which he may become
entitled shall be adjusted to reflect his actual time of service as a
Participant during the Performance Period.

       (c) The determinations made by an Employer's Board of Directors under
this Article shall be subject to approval by Cinergy's Committee before any
Annual Performance Awards are made.

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                                    ARTICLE 7

                            ANNUAL PERFORMANCE AWARD

       The Annual Performance Award, with respect to each Participant, for each
Performance Period shall be calculated as follows:

       (a) The appropriate weight for achieving a particular Corporate Target
Goal shall be determined by multiplying the Incentive Factor attributable to the
extent to which the particular Corporate Target Goal has been met for the
Performance Period times the weight (expressed as a percentage) assigned to that
Corporate Target Goal. If there are two or more Corporate Target Goals for a
particular Performance Period, then the weight for achieving each Corporate
Target Goal shall be calculated in the manner set forth in the immediately
preceding sentence;

       (b) The appropriate weight for achieving a particular Individual Goal
shall be determined by multiplying the Incentive Factor attributable to the
extent to which the particular Individual Goal has been met for the Performance
Period times the weight (expressed as a percentage) assigned to that Individual
Goal. If there are two or more Individual Goals for a particular Performance
Period, then the weight for achieving each Individual Goal shall be calculated
in the manner set forth in the immediately preceding sentence;

       (c) After the weight for achieving each Corporate Target Goal and
Individual Goal for the particular Performance Period has been calculated in the
manner set forth in Paragraphs (a) and (b), the resulting percentages shall be
added and the total sum shall be multiplied by the Participant's Minimum
Incentive in order to determine the Participant's Actual Incentive; and

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       (d) The Participant's Actual Incentive shall then be multiplied by the
Participant's Earnings for the applicable Performance Period. The resulting
number, expressed in terms of the nearest whole dollar, is the Participant's
Annual Performance Award.

       (e) An Employer's Board of Directors may enhance a Participant's Annual
Performance Award above the maximum level otherwise compensable in recognition
of exemplary performance or achievement as to subjective Individual Goals.
Except where such action would result in the loss of the otherwise available
exemption of the award under Code Subsection 162(m), if the Committee determines
that a change in the business operation, corporate structure or capital
structure of an Employer, or the manner in which it conducts its business, or
other events or circumstances render the Corporate Target Goals or Individual
Goals to be unsuitable, the Committee may modify such goals, in whole or in
part, as the Committee deems appropriate or equitable.

                                    ARTICLE 8

                   CORPORATE TARGET GOALS AND INDIVIDUAL GOALS

       (a) The Corporate Target Goal for each Employer's Performance Period,
which Corporate Target Goal shall be applicable to all Participants, shall be
determined by the Employer's Board of Directors. When there is more than one
Corporate Target Goal for a particular Performance Period, the Employer's Board
of Directors may, but is not required to, assign each goal equal weight and the
Employer's Board of Directors may, but is not required to, condition the
entitlement to an Annual Performance Award upon the attainment of one or more
Corporate Target Goals.

       (b) The Employer's Board of Directors may, but is not required to,
establish one or more Individual Goals for a Participant for each Performance
Period. When there is more than

                                      -11-
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one Individual Goal for a Participant for a particular Performance Period, the
Employer's Board of Directors may, but is not required to, assign each goal
equal weight.

       (c) The determinations made by an Employer's Board of Directors under
this Article shall be subject to approval by Cinergy's Committee before any
Annual Performance Awards are made.

                                    ARTICLE 9

                                  DISTRIBUTION

       After the determination and approval have been made under Article 7
(Annual Performance Award) as to the amount of Annual Performance Award to which
a Participant is entitled at the end of an Employer's Performance Period, the
resulting Annual Performance Award shall be paid to the Participant in cash in
one lump sum on or before the first business day of March following the end of
the Performance Period for which the Annual Performance Award was made unless
the Participant has previously elected in writing to defer the receipt of all or
a portion of the award in accordance with the provisions of the Cinergy
Nonqualified Deferred Compensation Plan.

                                   ARTICLE 10

                     CONDITIONS TO ANNUAL PERFORMANCE AWARDS

       10.1  GOVERNMENT REGULATIONS

             The Plan shall be subject to all applicable laws, rules, and
regulations and to all approvals by any governmental agencies as may be required
and is designed to comply with Code Subsection 162(m).

       10.2  CONTINUED EMPLOYMENT

             A Participant whose employment with his Employer terminates by
reason of a quit, resignation, or discharge prior to the end of the particular
Performance Period shall be

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automatically divested of any interest in or to any Annual Performance Award for
that Performance Period. If a Participant who has quit, resigned, or who has
been discharged is re-employed by his Employer prior to the end of the
Performance Period in which the quit, resignation, or discharge occurred, the
Employee shall be reinstated as a Participant for that Performance Period, but
any Annual Performance Award shall be adjusted to reflect the actual time of
service of the re-employed Participant during the Performance Period.

       (a) A Participant whose employment with his Employer terminates by reason
of retirement or death prior to the end of the particular Performance Period
shall not necessarily be totally divested of his interest in or to any Annual
Performance Award for that Performance Period. Instead, a determination shall be
made by the Employer's Board of Directors with respect to the retired or
deceased Participant as to the amount of the Annual Performance Award to which
he would have been entitled had he been a Participant on the last day of the
applicable Performance Period as though the retirement or death had not
occurred. However, any determination shall be adjusted to reflect the actual
time of service of the retired or deceased Participant during the Performance
Period prior to the effective date of his retirement or the date of his death.

       (b) A Participant who during an applicable Performance Period has
incurred Total Disability shall not be totally divested of his interest in or to
any Annual Performance Award for that Performance Period. Instead, a
determination shall be made by the Employer's Board of Directors with respect to
the totally disabled Participant as to the amount of the Annual Performance
Award to which he would have been entitled had he not been totally disabled
during the applicable Performance Period. However, any determination shall be
adjusted to reflect the actual time of service of the totally disabled
Participant during the Performance Period.

                                      -13-
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       (c) If a Participant is demoted or his job responsibilities are changed
during a Performance Period, the Employer's Board of Directors may make
adjustments to any Annual Performance Award for that Performance Period that it,
in its sole discretion, deems appropriate.

       (d) The determinations made by an Employer's Board of Directors under
this Article shall be subject to approval by Cinergy's Committee before any
Annual Performance Award is made.

                                   ARTICLE 11

                                   BENEFICIARY

     If a Participant dies prior to the date on which an Annual Performance
Award, or any installment thereof, is distributed, the Annual Performance Award
shall be paid to the highest priority person or persons surviving at the time
distribution is actually paid or commences. Distribution priorities are as
follows:

     (a) The Participant's Beneficiary designated under the Participant's last
will and testament;

     (b) The Participant's Beneficiary designated under his Employer's group
term life insurance plan;

     (c) The Participant's surviving spouse;

     (d) The Participant's surviving children, including adopted children;

     (e) The Participant's surviving parents;

     (f) The Participant's surviving brothers and sisters; or

     (g) The Participant's estate.

Distribution of the Annual Performance Award to a Beneficiary shall be made on
the same date or dates as the Annual Performance Award would have been made to
the Participant as if then living.

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                                   ARTICLE 12

                           NON-ALIENATION OF BENEFITS

       The Plan shall not in any manner be liable for, or subject to, the debts
or liabilities of any Participant or Beneficiary. No payee may assign any
payment due him under the Plan. No benefits at any time payable under the Plan
shall be subject in any manner to anticipation, alienation, sale, transfer,
assignment, pledge, attachment, garnishment, levy, execution, or other legal or
equitable process, or encumbrance of any kind.

                                   ARTICLE 13

                            FUNDING POLICY AND METHOD

       The Plan shall be totally unfunded so that Cinergy or any Employer is
under merely a contractual duty to make payments when due under the Plan. No
benefit or promise to pay shall be secured in any way.

                                   ARTICLE 14

                                CHANGE IN CONTROL

       Notwithstanding anything in the Plan to the contrary, if a Change in
Control of Cinergy occurs, each Corporate Target Goal and Individual Goal of
each Employer's Annual Program shall be deemed to have been fully satisfied at
the Maximum Incentive level and each Participant who is employed by an Employer
at the time of the Change in Control shall be entitled to receive an Annual
Performance Award in the same manner as though the Maximum Incentive level had
been obtained for the full Performance Period. In the event that a Change in
Control occurs prior to the time that an Employer has adopted an Annual Program
for such year, then each Participant who is employed by that Employer at the
time of the Change in Control shall be entitled to receive an Annual Performance
Award in the same manner as though the prior year's Annual Program were in
effect and the Maximum Incentive level had been obtained for the full

                                      -15-
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Performance Period. Any Annual Performance Award due to a Participant under this
Article shall be paid to the Participant in cash in one lump sum within thirty
(30) days following the Change in Control.

       A "Change in Control" of Cinergy shall be deemed to have occurred if any
of the following events occur:

          (1) Any Person is or becomes the beneficial owner (as defined in Rule
              13d-3 under the 1934 Act), directly or indirectly, of securities
              of Cinergy (not including in the securities beneficially owned by
              such Person any securities acquired directly from Cinergy or its
              affiliates) representing more than twenty percent (20%) of the
              combined voting power of Cinergy's then outstanding securities,
              excluding any Person who becomes such a beneficial owner in
              connection with a transaction described in clause (i) of paragraph
              (2) below; or

          (2) There is consummated a merger or consolidation of Cinergy or any
              direct or indirect subsidiary of Cinergy with any other
              corporation, partnership or other entity, other than (i) a merger
              or consolidation that would result in the voting securities of
              Cinergy outstanding immediately prior to that merger or
              consolidation continuing to represent (either by remaining
              outstanding or by being converted into voting securities of the
              surviving entity or its parent) at least sixty percent (60%) of
              the combined voting power of the securities of Cinergy or the
              surviving entity or its parent outstanding immediately after the
              merger or consolidation, or (ii) a merger or consolidation
              effected to implement a recapitalization of Cinergy (or similar
              transaction) in which no Person is or becomes the beneficial

                                      -16-
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              owner, directly or indirectly, of securities of Cinergy (not
              including in the securities beneficially owned by such a Person
              any securities acquired directly from Cinergy or its affiliates
              other than in connection with the acquisition by Cinergy or its
              affiliates of a business) representing twenty percent (20%) or
              more of the combined voting power of Cinergy's then outstanding
              securities; or

          (3) During any period of two (2) consecutive years, individuals who at
              the beginning of that period constitute Cinergy's Board of
              Directors and any new director (other than a director whose
              initial assumption of office is in connection with an actual or
              threatened election contest, including but not limited to a
              consent solicitation, relating to the election of directors of
              Cinergy) whose appointment or election by Cinergy's stockholders
              was approved or recommended by a vote of at least two-thirds (2/3)
              of the directors then still in office who either were directors at
              the beginning of that period or whose appointment, election, or
              nomination for election was previously so approved or recommended
              cease for any reason to constitute a majority of Cinergy's Board
              of Directors; or

          (4) The stockholders of Cinergy approve a plan of complete liquidation
              or dissolution of Cinergy or there is consummated a sale or
              disposition by Cinergy of all or substantially all of Cinergy's
              assets, other than a sale or disposition by Cinergy of all or
              substantially all of Cinergy's assets to an entity, at least sixty
              percent (60%) of the combined voting power of the voting
              securities of which are owned by stockholders of Cinergy in

                                      -17-
<Page>

              substantially the same proportions as their ownership of Cinergy
              immediately prior to the sale.

       For purposes of this Article, "Person" has the meaning set forth in
paragraph 3(a)(9) of the 1934 Act, as modified and used in subsections 13(d) and
14(d) of the 1934 Act; however, a Person will not include the following: (1)
Cinergy or any of its subsidiaries or affiliates; (2) a trustee or other
fiduciary holding securities under an employee benefit plan of Cinergy or any of
its subsidiaries or affiliates; (3) an underwriter temporarily holding
securities pursuant to an offering of those securities; or (4) a corporation
owned, directly or indirectly, by the stockholders of Cinergy in substantially
the same proportions as their ownership of stock of Cinergy.

       Notwithstanding the provisions of Article 18 (Amendment and Termination),
the provisions of this Article may not be amended by an amendment to the Plan
effected within three years following a Change in Control.

                                      -18-
<Page>

                                   ARTICLE 15

                                 ADMINISTRATION

       (a) The Plan shall be administered by Cinergy's Committee which shall
consist of members of Cinergy's Board of Directors who are disinterested persons
under Rule 16b-3 promulgated under the 1934 Act and successor rules and, with
respect to Covered Employees, outside directors under Code Subsection 162(m).
Cinergy's Committee is authorized to establish all rules and regulations and to
appoint any agents as it deems appropriate for the Plan's proper administration
and to make any determinations under and to take any steps in connection with
the Plan for the benefits provided under the Plan as it deems necessary or
advisable. Cinergy's Committee may require an Employer to enter into agreements
with each Participant as it deems appropriate to reflect each Participant's
interests under the Plan.

       (b) Cinergy's Committee shall have exclusive discretionary authority and
right to approve eligibility for participation in the Plan and to interpret,
construe, and regulate the Plan. The decision of Cinergy's Committee with
respect to any questions arising as to the Employees selected to participate in
the Plan, the amount and time of payment of benefits under the Plan or any other
matters concerning the Plan, including its interpretation, construction, or
regulation, shall be final, conclusive and binding on the Employers, the
Employers' Boards of Directors, Employees, Participants, and Beneficiaries.

                                      -19-
<Page>

                                   ARTICLE 16

                                  MISCELLANEOUS

       16.1   NO ENLARGEMENT OF EMPLOYEE BENEFITS

              This Plan is strictly a voluntary undertaking on the part of the
Employers and shall not be deemed to constitute a contract between the Employers
and any Employee or to be consideration for, or an inducement to, or a condition
of, the employment of any Employee. Nothing contained in the Plan shall be
deemed to give any Employee the right to be retained in the service of any
Employer or to interfere with the right of any Employer to discharge any
Employee at any time. No Employee shall have any right to benefits except to the
extent provided in the Plan. Nothing contained in the Plan shall be deemed to
give any Employee a continued entitlement to receive an Annual Performance Award
for any Performance Period. Any award under this Plan shall not be deemed
compensation for purposes of computing benefits or contributions under any
retirement plan of an Employer unless otherwise provided by that plan, and shall
not affect any benefits under any other Employer benefit plan of any kind
currently or subsequently in effect under which the availability or amount of
benefits is related to the level of compensation.

       16.2   NOTICE OF ADDRESS

              Each Participant and Beneficiary entitled to benefits under the
Plan must file with Cinergy's Committee, in writing, his post office address and
each change of post office address. Any communication, statement, or notice
addressed to a person at his latest post office address as filed with Cinergy's
Committee will, upon deposit in the United States mail with postage prepaid, be
binding upon that person for all purposes of the Plan.

                                      -20-
<Page>

       16.3   NO INDIVIDUAL LIABILITY

              It is the Plan's express purpose and intention that, except as
otherwise required by law, no individual liability whatever shall attach to, or
be incurred by, any Employer, its shareholders, officers, employees, or members
of the board of directors of any Employer, under or by reason of any of the
Plan's terms or conditions. Each Participant shall be legally bound by the
Plan's provisions.

       16.4   DELEGATION OF ADMINISTRATIVE DUTIES

              Administrative duties imposed by this Plan may be delegated by
Cinergy's Committee to an Employee of any Employer charged with those duties to
the extent not inconsistent with the provisions of Code Subsection 162(m).

       16.5   GOVERNING LAWS

              The Plan shall be construed and administered according to the laws
of the State of Delaware to the extent that those laws are not preempted by the
laws of the United States of America.

       16.6   RISK OF PARTICIPATION

              Nothing contained in the Plan shall be construed as an agreement
by the Plan or any Employer, its shareholders, officers, employees, or members
of the board of directors of any Employer, to indemnify anyone for any losses,
damages, costs and/or expenses resulting from participation in the Plan.

       16.7   HEADINGS

              The headings of articles, sections, subsections, paragraphs or
other parts of the Plan are for convenience of reference only and do not define,
limit, construe or otherwise affect the contents of the Plan.

                                      -21-
<Page>

                                   ARTICLE 17

                                  CONTRIBUTIONS

       No contributions to the Plan by Participants shall be required or
permitted under the Plan.

                                   ARTICLE 18

                            AMENDMENT AND TERMINATION

       Cinergy, by resolution duly adopted by Cinergy's Board of Directors,
shall have the right, authority, and power to alter, amend, modify, revoke, or
terminate the Plan at any time, and Cinergy, by resolution of Cinergy's Board of
Directors, shall also have the right, authority, and power to discontinue or
suspend the payment of benefits under the Plan.

                                   ARTICLE 19

                           CONTINUANCE BY A SUCCESSOR

       If Cinergy is reorganized by way of merger, consolidation, transfer of
assets or otherwise, so that another corporation, partnership or person shall
succeed to all or substantially all of Cinergy's business, the successor may be
substituted for Cinergy under the Plan by adopting the Plan.

                                   ARTICLE 20

                                COVERED EMPLOYEES

       Notwithstanding any provision of the Plan to the contrary, this Article
will govern the terms of the Annual Performance Awards granted to Covered
Employees. This Article is designed to comply with Code Subsection 162(m) to the
extent applicable. All provisions in this Article, and any other applicable
provision of the Plan shall be construed in a manner to so comply.

       (a) With respect to Covered Employees, the Plan shall be administered by
a committee (the "AIP Committee") consisting of two or more persons each of whom
is an

                                      -22-
<Page>

"outside director" for purposes of Code Subsection 162(m). The AIP Committee and
Cinergy's Committee may be the same Committee provided that the membership to
Cinergy's Committee satisfies the conditions set forth in the preceding
sentence.

       (b) With respect to Participants who are Covered Employees, the AIP
Committee shall establish the Corporate Target Goals and Individual Goals for
each Performance Period within the time necessary to satisfy the requirements of
Code Subsection 162(m). Corporate Target Goals shall be based on objective
performance criteria pertaining to an Employer's performance, efficiency, or
profitability measured by specified levels or of growth in one or more of the
following business criteria as the AIP Committee may determine: stock price,
total shareholder return, market share, sales, earnings per share, costs,
operating income, net income, cash flow, fuel cost per million BTU, costs per
kilowatt hour, retained earnings, return on equity, return on assets, return on
capital employed, return on invested capital, return on sales, and completion of
acquisitions; provided, that all such Corporate Target Goals shall satisfy the
requirements for "performance-based compensation" within the meaning of
Paragraph 162(m)(4) of the Code. Individual Goals shall be based on the
objective business criteria underlying the Corporate Target Goals and shall
pertain to a Covered Employee's individual effort as to achievement or
attainment of the Corporate Target Goals or shall relate to one or more of the
following business criteria: litigation, human resources, information services,
production, inventory, support services, site development, plant development,
building development, facility development, government relations, product market
share, or management (or, with respect to separate awards under the Plan not
intended to satisfy the requirements for "performance-based compensation" within
the meaning of Paragraph 162(m)(4) of the Code, subjective performance criteria
pertaining to a Covered Employee's individual effort as to enhancement of either
individual performance or achievement or attainment of an Employer's
performance, efficiency

                                      -23-
<Page>

or profitability). Except where such action would result in the loss of the
otherwise available exemption of the award under Code Subsection 162(m), when
establishing the Corporate Target Goals and Individual Goals, the AIP Committee
may include or exclude the impact of specified objective events, including, but
without limitation, weather conditions; effects of accounting changes; effects
of currency fluctuations; effects of financing activities (e.g., the effect on
earnings per share of issuing convertible debt securities); expenses for
restructuring or productivity initiatives; non-operating items; acquisition
expenses; effects of divestitures; and any other items of gain, loss or expense
that are determined to be extraordinary or unusual in nature or infrequent in
occurrence or related to the disposal of a segment of a business or related to a
change in accounting principle all as determined in accordance with generally
accepted accounting principles. No provision of this Article shall preclude the
AIP Committee from exercising negative discretion with respect to any Annual
Performance Award granted to a Covered Employee hereunder (i.e., to reduce or
eliminate the Annual Performance Award payable) within the meaning of Code
Subsection 162(m).

       (c) In the case of Participants who are Covered Employees as of the end
of the Performance Period, unless otherwise designated as separate awards based
on subjective performance criteria, payments shall be made only after
achievement of the applicable performance goals has been certified by the AIP
Committee. In no event shall payment in respect of Annual Performance Awards
based on Corporate Target Goals and objective Individual Goals granted for a
Performance Period be made to a Participant who is a Covered Employee as of the
end of a Performance Period in an amount that exceeds $5,000,000.

       (d) Notwithstanding any provision of this Plan to the contrary, payments
of any Annual Performance Awards under the Plan to Covered Employees for
Performance Periods commencing on or after January 1, 2002 shall be contingent
upon the affirmative vote of the

                                      -24-
<Page>

shareholders of at least a majority of the votes cast (including abstentions to
the extent abstentions are counted as voting under applicable state law) at the
annual meeting of shareholders held in 2002. Unless and until such shareholder
approval is obtained, no Annual Performance Awards for Performance Periods
commencing on or after January 1, 2002 shall be paid to any Covered Employee
pursuant to this Plan.

       IN WITNESS WHEREOF, Cinergy Corp. has caused this master plan document to
be executed and approved by its duly authorized officers effective as of January
25, 2002.

                                     CINERGY CORP.

                                     BY:
                                        ------------------------------------
                                        JAMES E . ROGERS
                                        Chairman, President and Chief Executive
                                        Officer

                                     And

                                     BY:
                                        ------------------------------------

                                      -25-<Page>

                                  CINERGY CORP.
                   1996 LONG-TERM INCENTIVE COMPENSATION PLAN
           (AS AMENDED AND RESTATED EFFECTIVE AS OF JANUARY 25, 2002)

                                  INTRODUCTION

       On January 25, 1996, Cinergy Corp. adopted, subject to shareholder
approval, a long-term incentive compensation plan known as the "Cinergy Corp.
1996 Long-Term Incentive Compensation Plan" (the "Plan") for the exclusive
benefit of eligible employees of Cinergy Corp. and its subsidiaries. The plan is
a stock and cash-based plan under which certain eligible employees of Cinergy
Corp. and its subsidiaries may be granted awards payable in either common stock
of Cinergy Corp. or cash. Awards may consist of grants of incentive stock
options within the meaning of Section 422 of the Internal Revenue Code of 1986,
as amended, stock options that do not constitute incentive stock options, cash
amounts in connection with certain options that do not constitute incentive
stock options, stock appreciation rights, restricted stock, performance awards
payable in cash or shares of common stock, dividend equivalents, or other
stock-based awards. The Plan, originally effective as of June 1, 1996, is hereby
amended and restated in its entirety effective as of January 25, 2002 as set
forth herein, subject to shareholder approval within 12 months after such date.

                                    ARTICLE 1
                                   DEFINITIONS

       Whenever used in this document, the following terms shall have the
respective meanings set forth below, unless a different meaning is plainly
required by the context:

       1.1  "Award" means an Option (which may be designated as an ISO or an
NSO), a Stock Appreciation Right (which may be designated as a Freestanding SAR
or a Tandem SAR),

                                       -1-
<Page>

Restricted Stock, Performance Shares, Performance Awards, Dividend Equivalents,
Other Stock-Based Awards, or any other right or interest relating to Common
Stock or cash, granted to a Participant under the Plan. Each Award shall be
evidenced by an Award Agreement.

       1.2  "Award Agreement" means a written or electronic agreement, in a
form approved by the Committee, which sets forth the terms and conditions of an
Award. An Award Agreement shall be subject to the express terms and conditions
set forth in the Plan, and to other terms and conditions not inconsistent with
the Plan as the Committee shall deem appropriate.

       1.3  "Chief Executive Officer" means the Employee elected by Cinergy's
Board of Directors to serve as the chief executive officer of Cinergy.

       1.4  "Cinergy" means Cinergy Corp., a Delaware corporation, and any
corporation which shall succeed to its business as described in Article 22
(Continuance by a Successor).

       1.5  "Cinergy's Board of Directors" means the duly constituted board of
directors of Cinergy on the applicable date.

       1.6  "Code" means the Internal Revenue Code of 1986, as amended from
time to time, and interpretive rulings and regulations.

       1.7  "Committee" means the duly designated Compensation Committee of
Cinergy's Board of Directors.

       1.8  "Common Stock" means any authorized share of ownership of Cinergy
represented by a common stock certificate, with par value of $.01 per share, or
any other appropriate instrument evidencing the same.

       1.9  "Covered Employee" shall have the meaning set forth in Code
Paragraph 162(m)(3).

       1.10 "Date of Grant" means the date specified by the Committee
pursuant to Section 4.1 (Committee as Administrator) on which a grant of an
Award shall become effective,

                                       -2-
<Page>

which shall not be earlier than the date on which the Committee takes action
with respect to that grant.

       1.11 "Dividend Equivalent" means an Award that confers upon the
Participant a right to receive cash, Common Stock, other Awards or other
property equal in value to dividends paid with respect to a specified number of
shares of Common Stock.

       1.12 "Employee" means any person in the employ of an Employer.

       1.13 "Employer" means Cinergy and all of its directly or indirectly
held majority or greater owned subsidiaries, except that for purposes of
determining whether any person may be a Participant for purposes of any grant of
ISOs, "subsidiary" means any corporation in which at the time Cinergy owns or
controls, directly or indirectly, more than 50 percent of the total combined
voting power represented by all classes of stock issued by such corporation.

       1.14 "Fair Market Value" means, as of any particular date with respect
to a share of Common Stock, the average of the high and low sales prices of a
share of Common Stock on such date, or on the preceding trading day if that date
was not a trading date, as reported by the "NYSE-Composite Transactions"
published in THE WALL STREET JOURNAL.

       1.15 "Freestanding SAR" means a right, granted pursuant to this Plan
without reference or relationship to any Option, of a Participant to receive
cash, shares of Common Stock, or a combination thereof, as the case may be,
having an aggregate value equal to the excess of the Fair Market Value of one
share of Common Stock on the date of exercise of the SAR over the Fair Market
Value of one share of Common Stock on the Date of Grant of the SAR.

       1.16 "ISO" means an incentive stock option within the meaning of Code
Section 422.

       1.17 "1934 Act" means the Securities Exchange Act of 1934, as amended
from time to time, and interpretive rulings and regulations.

                                      -3-
<Page>

       1.18 "Non-Employee Director" means a member of Cinergy's Board of
Directors who is not an Employee. Notwithstanding the fact that a Non-Employee
Director is not an Employee, his or her service as a member of Cinergy's Board
of Directors shall be considered for purposes of this Plan as service for an
Employer.

       1.19 "NSO" means a stock option that does not constitute an incentive
stock option within the meaning of Code Section 422.

       1.20 "Option" means an ISO and/or an NSO as the context requires.

       1.21 "Optionee" means any Participant who has been granted an Option
or Stock Appreciation Right by the Committee pursuant to the Plan.

       1.22 "Option Price" means, with respect to each share of Common Stock
subject to an Option, the price fixed by the Committee at which the share may be
purchased pursuant to the exercise of the Option.

       1.23 "Other Stock-Based Award" means an Award other than an Option,
Performance Share, Performance Award, Dividend Equivalent, Restricted Stock or
SAR that is denominated or payable in, valued in whole or in part by reference
to, or otherwise based on or related to, shares of Common Stock.

       1.24 "Participant" means a person who is selected by the Committee to
receive benefits under this Plan in accordance with Section 5.1 (Group of
Eligible Participants).

       1.25 "Performance Awards" means an Award conferring the right,
contingent upon attainment of Performance Measures within a Performance Period,
to receive (a) a specified dollar amount or, in lieu of all or any portion of
such amount, (b) shares of Common Stock having the same Fair Market Value or (c)
a specified number of shares of Restricted Stock.

       1.26 "Performance Measures" means (1) in the case of Dividend
Equivalents, Performance Shares or Performance Awards, those criteria and
objectives determined by the

                                      -4-
<Page>

Committee the attainment of which during the applicable Performance Period would
be a pre-condition to settlement of the Award, and (2) in the case of Restricted
Stock, those Committee-determined criteria and objectives (if any) which, if not
met during the applicable Restriction Period, would cause a forfeiture of the
Award and/or which, if met during the otherwise applicable Restriction Period,
would cause an early termination of the Restriction Period. The Performance
Measures applicable to any Award to a Participant who is, or is determined by
the Committee to be likely to become, a Covered Employee shall be established in
writing not later than 90 days after the commencement of the Performance Period,
or such other time as may be prescribed by Code Subsection 162(m), and shall be
limited to criteria and objectives related to (1) an Employer's performance,
efficiency, or profitability measured by specified levels or of growth in one or
more of the following business criteria as the Committee may determine: stock
price, total shareholder return, market share, sales, earnings per share, costs,
operating income, net income, cash flow, fuel cost per million BTU, costs per
kilowatt hour, retained earnings, return on equity, return on assets, return on
capital employed, return on invested capital, return on sales, and completion of
acquisitions; provided, that all such criteria and objectives shall satisfy the
requirements for "performance-based compensation" within the meaning of
Paragraph 162(m)(4) of the Code; and/or (2) individual goals which are based on
the objective business criteria underlying the goals listed in (1) above and
pertain to a Covered Employee's individual effort as to achievement or
attainment of the business criteria listed in (1) above or one or more of the
following business criteria: litigation, human resources, information services,
production, inventory, support services, site development, plant development,
building development, facility development, government relations, product market
share, or management (or, with respect to separate awards under the Plan not
intended to satisfy the requirements for "performance-based compensation" within
the meaning of Paragraph 162(m)(4) of the Code, subjective performance

                                      -5-
<Page>

criteria pertaining to a Covered Employee's individual effort as to enhancement
of either individual performance or achievement or attainment of an Employer's
performance, efficiency or profitability). Except in the case of a Covered
Employee where such action would result in the loss of the otherwise available
exemption of the Award under Code Subsection 162(m), when establishing
Performance Measures, the Committee may include or exclude the impact of
specified objective events, including, but without limitation, weather
conditions; effects of accounting changes; effects of currency fluctuations;
effects of financing activities (e.g., the effect on earnings per share of
issuing convertible debt securities); expenses for restructuring or productivity
initiatives; non-operating items; acquisition expenses; effects of divestitures;
and any other items of gain, loss or expense that are determined to be
extraordinary or unusual in nature or infrequent in occurrence or related to the
disposal of a segment of a business or related to a change in accounting
principle all as determined in accordance with generally accepted accounting
principles. The Committee may impose any other subjective or objective criteria
it may approve from time to time for the purpose of reducing the amount
otherwise payable upon settlement of Dividend Equivalents, Performance Shares or
Performance Awards or for the purpose of increasing the number of shares of
Restricted Stock that would otherwise be forfeited during the applicable
Restriction Period. Except in the case of a Covered Employee where such action
would result in the loss of the otherwise available exemption of the Award under
Code Subsection 162(m), if the Committee determines that a change in the
business, operation, corporate structure or capital structure of Cinergy, or the
manner in which it conducts its business, or other events or circumstances
render the Performance Measures to be unsuitable, the Committee may modify the
Performance Measures, in whole or in part, as the Committee deems appropriate
and equitable.

                                      -6-
<Page>

       1.27 "Performance Period" means the period designated by the Committee
during which the Performance Measures applicable to Performance Shares or
Performance Awards shall be measured. The Performance Period shall be
established on the Date of Grant of the Performance Shares or Performance
Awards. The duration of Performance Periods may vary, but shall not be less than
one year in duration.

       1.28 "Performance Shares" means the right, contingent upon attainment
of Performance Measures within a Performance Period, to receive a specified
number of shares of Common Stock, which may be in the form of Restricted Stock,
or, in lieu of all or any portion of those shares, their Fair Market Value in
cash.

       1.29 "Plan" means the long-term incentive compensation plan known as
the "Cinergy Corp. 1996 Long-Term Incentive Compensation Plan", as amended from
time to time. Effective as of January 25, 2002, and subject to shareholder
approval within 12 months after such date, this document sets forth the Plan.

       1.30 "Restriction Period" means the period designated by the Committee
during which Restricted Stock shall be subject to a substantial risk of
forfeiture and may not be sold, exchanged, assigned, transferred, pledged,
hypothecated or otherwise encumbered or disposed of, except as otherwise
provided in the Plan.

       1.31 "Restricted Stock" means any shares of Common Stock issued
pursuant to the Plan subject to a substantial risk of forfeiture pursuant to
Code Section 83 and to the restriction that they may not be sold, exchanged,
assigned, transferred, pledged, hypothecated or otherwise encumbered or disposed
of, except as otherwise provided in the Plan, prior to termination of a
Restriction Period. The restrictions may or may not be performance-based as
deemed appropriate by the Committee. Restricted Stock shall constitute issued
and outstanding shares of Common Stock for all corporate purposes.

                                      -7-
<Page>

       1.32 "Stock Appreciation Right" or "SAR" means any Freestanding SAR or
Tandem SAR as the context requires.

       1.33 "Tandem SAR" means a right, granted under this Plan, pursuant to
which a holder may elect to surrender an Option, or any portion thereof, that is
then exercisable, and receive in exchange therefor shares of Common Stock, cash,
or a combination thereof, as the case may be, with an aggregate value equal to
the excess of the Fair Market Value of one share of Common Stock at the time of
exercise over the per share Exercise Price specified in the Option, multiplied
by the number of shares of Common Stock covered by the Option, or portion
thereof, that is so surrendered.

       The use of singular words is for practical purposes only and shall be
deemed to include the plural unless the context plainly indicates a distinction.
Certain other definitions, as required, appear in the following Articles of the
Plan.

                                    ARTICLE 2
                             EFFECTIVE DATE OF PLAN

       The Plan's provisions, as set forth in this document, are effective as of
January 25, 2002 subject to shareholder approval within 12 months after such
date. Awards granted on or after January 25, 2002 are subject to the terms of
the Plan as amended and restated herein and Awards granted prior to that date
are subject to the terms of the Plan effective immediately prior to January 25,
2002.

       With respect to Performance Awards and Performance Shares granted on or
after January 25, 2002 to Covered Employees, no payment in connection with such
award shall be made prior to the approval of the shareholders of at least a
majority of the votes cast (including abstentions to the extent abstentions are
counted as voting under applicable state law) at the annual meeting of
shareholders held in 2002.

                                      -8-
<Page>

                                    ARTICLE 3
                                 PURPOSE OF PLAN

       The Plan's purposes are to benefit shareholders of Cinergy by encouraging
and enabling the acquisition of a proprietary interest, or to increase the
proprietary interest, in Cinergy by officers and other Participants, and to aid
in attracting and retaining qualified employees and directors, to provide
long-term incentives for sustained high levels of performance by those persons,
and to strengthen their desire to remain in the employ or service of their
Employer.

                                    ARTICLE 4
                                 ADMINISTRATION

      4.1  COMMITTEE AS ADMINISTRATOR.

           The Plan shall be administered by the Committee which shall be
comprised of not fewer than two members of Cinergy's Board of Directors. Members
of the Committee shall be members of Cinergy's Board of Directors who are
non-employee directors under Rule 16b-3 promulgated under the 1934 Act and
successor rules ("Rule 16b-3") and, with respect to Covered Employees, outside
directors under Code Subsection 162(m). Subject to the Plan's terms, the
Committee shall have the exclusive authority to grant Awards to Participants
under the Plan, to select the Participants to receive Awards, to determine the
type, size and terms of the Awards to be made to each Participant selected, to
determine the time when Awards to Participants will be granted, and to prescribe
the form of the Award Agreements embodying Awards made under the Plan. The
provisions and conditions of the grants of Awards, which shall be set forth in
Award Agreements, need not be the same with respect to each Participant selected
or with respect to each Award. Notwithstanding the foregoing, the Plan shall be
administered by Cinergy's Board of Directors with respect to any Award granted
to a Non-Employee Director.

                                      -9-
<Page>

      4.2  COMMITTEE AUTHORITY.

           Unless otherwise determined by Cinergy's Board of Directors, the
Committee is authorized to establish any rules and regulations and appoint any
agent as it deems appropriate for the Plan's proper administration and to make
any determinations under and to take any steps in connection with the Plan as it
deems necessary or advisable. Each determination or other action made or taken
pursuant to the Plan, including interpretation of the Plan and the specific
conditions and provisions of the Awards granted under the Plan by the Committee
shall be final and conclusive for all purposes and upon all persons including,
without limitation, each Employer and each Employer's board of directors, and
the affected Participant, beneficiary, legal representative, and any other
interested parties.

                                   ARTICLE 5
                                  ELIGIBILITY

      5.1  GROUP OF ELIGIBLE PARTICIPANTS.

           The group of Participants eligible to receive Awards shall consist of
all Employees who are officers of an Employer, Employees who are employed in a
significant executive, supervisory, administrative, operational, or professional
capacity by an Employer, Employees who have the potential to contribute to the
future success of an Employer, including, without limitation, Employees
designated by Cinergy or an Employer as participants in an Employer's short-term
incentive compensation plan and Non-Employee Directors. Notwithstanding the
foregoing, no Employee owning (after application of the ownership rules in Code
Subsection 424(d)) shares of stock possessing more than ten percent of the total
combined voting power of all classes of stock of an Employer or of its parent or
subsidiary may be granted an ISO under the Plan unless at the time the ISO is
granted the Option Price is at least 110 percent of the Fair Market Value of the
stock subject to the ISO and the ISO by its terms is not exercisable after the
expiration of five years from the date the ISO is granted.

                                      -10-
<Page>

      5.2  DESIGNATION BY COMMITTEE OR BOARD.

           From time to time, Cinergy's Chief Executive Officer may recommend to
the Committee the granting of Awards to any eligible Participant. After
reviewing the recommendations, and after considering the duties of each
recommended Participant, his or her present and potential contribution to the
success of his or her Employer, his or her other compensation provided by his or
her Employer and any other factors as it deems relevant, the Committee or
Cinergy's Board of Directors shall determine whether to grant Awards to the
recommended Participant.

                                   ARTICLE 6
                                     STOCK

      6.1  STOCK SUBJECT TO THE PLAN.

           The stock to be issued, transferred and/or sold under the Plan shall
be shares of Common Stock. Cinergy may use either authorized and unissued shares
of Common Stock or treasury shares of Common Stock acquired on the open market,
in private transactions or otherwise, or issued and outstanding shares acquired
by or on behalf of Cinergy in the name of an Award recipient (or permissible
successor thereof) for purposes of granting or settling an Award, or a
combination of the foregoing. Subject to adjustment as provided in Article 7
(Adjustment in the Number of Shares and in Option Price), the aggregate maximum
number of shares that may be (i) issued or transferred upon the exercise of
Options or SARs, (ii) awarded as Restricted Stock and released from substantial
risk of forfeiture thereof, (iii) issued or transferred as Dividend Equivalents,
and (iv) issued or transferred in payment of Performance Shares, Performance
Awards or Other Stock-Based Awards that have been earned is _________; provided,
however, that with respect to ISOs, any adjustment shall be made in accordance
with Code Section 424.

                                      -11-
<Page>

      6.2  LIMITATION ON GRANTS.

           (a) Upon the full or partial payment of any Option Price by the
transfer to Cinergy of Common Stock or upon satisfaction of tax withholding
obligations in connection with any Option exercise or any other payment made or
benefit realized under the Plan by the transfer or relinquishment of Common
Stock, there shall be deemed to have been issued or transferred under the Plan
only the net number of shares of Common Stock actually issued or transferred by
Cinergy. However, the number of shares of Common Stock actually issued or
transferred by Cinergy upon the exercise of ISOs shall not exceed the number of
shares of Common Stock first specified above in Section 6.1 (Stock Subject to
Plan), subject to adjustment as provided in that Section and Article 7
(Adjustment in the Number of Shares and in Option Price).

           (b) Upon payment in cash of the benefit provided by any Award granted
under the Plan, any shares of Common Stock that were covered by that Award shall
again be available for issuance or transfer under the Plan.

           (c) Notwithstanding any other provision of the Plan to the contrary,
no Participant shall be granted Options or Stock Appreciation Rights for or
relating to more than 500,000 shares of Common Stock during any calendar year,
subject to adjustment as provided in Article 7 (Adjustment in the Number of
Shares and in Option Price).

           (d) Notwithstanding any other provision of the Plan to the contrary,
in no event shall any Participant receive awards of Restricted Stock, Dividend
Equivalents, Performance Shares and Performance Awards, and Other Stock-Based
Awards having an aggregate value as of their respective Dates of Grant in excess
of $3,000,000 in any calendar year.

                                      -12-
<Page>

                                    ARTICLE 7
                           ADJUSTMENT IN THE NUMBER OF
                           SHARES AND IN OPTION PRICE

           If there is any change in the shares of Common Stock through the
declaration of stock dividends, stock splits, through recapitalization, merger,
consolidation, combination of shares, spin-off, other significant distribution
of assets, or otherwise, the Committee or Cinergy's Board of Directors shall
make an adjustment, if any, as it may deem appropriate in the number of shares
of Common Stock available for Awards or the number of shares of Common Stock
subject to any outstanding Award and the Option Price thereof, and the maximum
number of shares of Common Stock subject to Option or Stock Appreciation Rights
granted to any Participant during any calendar year. Any adjustment may provide
for the elimination of any fractional shares that might otherwise become subject
to any Award without payment therefor. Moreover, in the event of any such
transaction or event, the Committee or Cinergy's Board of Directors, in its
discretion, may provide in substitution for any or all outstanding Awards under
this Plan such alternative consideration as it, in good faith, may determine to
be equitable in the circumstances and may require in connection therewith the
surrender of all Awards so replaced.

                                      -13-
<Page>

                                    ARTICLE 8
                                     OPTIONS

      8.1  TYPES OF OPTION.

           The Committee may make awards of ISOs to Employees and awards of NSOs
to either Employees or Non-Employee Directors. The Committee, with respect to
each grant of an Option to an Optionee, shall determine whether the Option shall
be an ISO, and, upon determining that an Option shall be an ISO, shall designate
it as an ISO in the Award Agreement evidencing the Option. If the Award
Agreement evidencing an Option does not contain a designation that it is an ISO,
it shall not be an ISO, but instead it shall be an NSO. In no event will the
exercise of an ISO affect the right to exercise an NSO, nor shall the exercise
of any NSO affect the right to exercise any ISO. No ISOs shall be granted under
the Plan after ten years from the effective date of the Plan.

           The aggregate fair market value (determined in each instance on the
Date of Grant of an ISO) of the Common Stock with respect to which ISOs are
first exercisable by any Optionee in any calendar year shall not exceed $100,000
or any other limit prescribed in the Code for the Optionee. If any Employer
shall adopt a stock option plan under which Options constituting incentive stock
options as defined in Code Subsection 422(b) may be granted, the fair market
value of the stock on which any incentive stock options were granted and the
times at which the incentive stock options shall first become exercisable shall
be taken into account in determining the maximum amount of ISOs that may be
granted to the Optionee in any calendar year.

      8.2  NUMBER OF SHARES COVERED.

           Each Award Agreement shall specify the number of shares of Common
Stock subject to the pertinent Option.

                                      -14-
<Page>

      8.3  DURATION OF OPTIONS.

           The duration of Options shall be determined by the Committee. Each
Award Agreement shall specify the period not in excess of ten years during which
the pertinent Option may be exercised, and the Award Agreement shall provide
that the Option shall expire at the end of that period, and may be subject to
earlier termination in the event of a Change in Control of Cinergy as set forth
in Section 21.11 (Change in Control).

      8.4  OPTION PRICE.

           The Option Price shall be determined by the Committee at the time any
Option is granted, and shall be set forth in the Award Agreement. The Option
Price for NSOs and ISOs shall be no less than 100 percent of the Fair Market
Value of the Common Stock on the Date of Grant.

      8.5  MANNER OF EXERCISE.

           The specified number of shares with respect to which an Option is
exercised shall, subject to applicable tax withholding, be issued following
receipt by Cinergy of (i) notice of the exercise from the Optionee (in
accordance with procedures that the Committee shall have specified in the Award
Agreement or otherwise) of an Option delivered to Cinergy's Secretary or his or
her designee, and (ii) payment, as provided in this document, of the Option
Price.

      8.6  PAYMENT.

           (a) The Option Price shall be paid in full at the time of exercise.
No share shall be issued or transferred until full payment has been received
therefor. Payment may be (i) in cash, (ii) in nonforfeitable, unrestricted
shares of Common Stock that have already been owned by the Optionee or jointly
owned by the Optionee and the Optionee's spouse (provided that the spouse's
written consent is first obtained) for at least 6 months and have a value at the
time of exercise that is equal to the Option Price, (iii) by delivering a
properly executed exercise

                                      -15-
<Page>

notice together with irrevocable instructions to a broker to promptly deliver to
Cinergy the total Option Price in cash and, if desired, the amount of any taxes
required to be withheld from the Optionee's compensation as a result of the
Employer's withholding tax obligation, as specified in the notice, (iv) in any
other legal consideration that the Committee may deem appropriate, including
without limitation any form of consideration authorized under Subsection 8.6
(b), on such basis as the Committee may determine in accordance with the Plan,
or (v) in any combination of the foregoing. Cash payment for the shares
purchased under an NSO may be offset by the amount of any Cash Award, as
provided in Article 12 (Cash Awards), approved by the Committee. If payment is
made by the delivery of shares of Common Stock, the value of the shares
delivered shall be computed upon the basis of the average of the high and low
sales prices at which shares of Common Stock shall have been sold on the date
the Optionee exercises an Option, or on the preceding trading day if that date
was not a trading day as reported on the "NYSE - Composite Transactions" as
reported in THE WALL STREET JOURNAL.

           (b) Any grant of an NSO shall provide that payment of the Option
Price may also be made in whole or in part in the form of shares of Restricted
Stock or other Common Stock that are subject to risk of forfeiture or
restrictions on transfer. Unless otherwise determined by the Committee on or
after the Date of Grant, whenever any Option Price is paid in whole or in part
by means of any of the forms of consideration specified in this subsection, the
Common Stock received by the Optionee upon the exercise of the NSO shall be
subject to the same risk of forfeiture or restrictions on transfer as those that
applied to the consideration surrendered by the Optionee. However, the risks of
forfeiture and restrictions on transfer shall apply only to the same number of
shares of Common Stock received by the Optionee as applied to the forfeitable or
restricted Common Stock surrendered by the Optionee.

                                      -16-
<Page>

      8.7  OTHER TERMS AND CONDITIONS.

           Subject to the Plan's other provisions, an Option may be exercised at
any time or from time to time during the term of the Option as to any and all
whole shares that have become subject to purchase pursuant to the terms of the
Option or the Plan, but not at any time as to fewer than 100 shares unless the
remaining shares that have become subject to purchase are fewer than 100 shares.
Options may contain any other provisions, not inconsistent with the Plan's
provisions, as the Committee shall determine appropriate from time to time. The
Committee shall have the authority to grant Options exercisable in full at any
time during their term, or exercisable in installments at any time during their
term as the Committee shall determine. Installments not purchased in earlier
periods shall be cumulated and be available for purchase in later periods.

      8.8  EFFECT OF EXERCISE OF OPTION ON TANDEM SAR.

           Upon the exercise of an Option with respect to which a Tandem SAR has
been granted, the number of shares of Common Stock with respect to which the SAR
shall be exercisable shall be reduced by the number of shares with respect to
which the Option has been exercised.

                                    ARTICLE 9
                           STOCK APPRECIATION RIGHTS

      9.1  TYPE OF SAR.

           Each SAR Award shall specify whether it relates to a Tandem SAR or to
Freestanding SARs.

      9.2  NUMBER OF OPTIONED SHARES OR FREESTANDING SARS.

           In the case of any Tandem SAR, the SAR Award shall specify the Option
and the number of shares of Common Stock subject to the Option to which the SAR
relates. Any SAR Award relating to Freestanding SARs shall specify the number of
such SARs to which it relates.

                                      -17-
<Page>

      9.3  EXERCISE PERIOD.

           Each SAR Award shall specify the period during which the pertinent
SAR(s) may be exercised and the Award Agreement shall provide that the SAR(s)
shall expire at the end of each period (or periods) and may be subject to
earlier termination in the event of a Change in Control of Cinergy, as described
in Section 21.11 (Change in Control) or other similar transaction or event, as
provided in the Award Agreement. For a Freestanding SAR, the expiration date
shall be no later than ten years from the Date of Grant. For Tandem SARs, the
expiration date(s) shall be no later than the date(s) of expiration of the
related Option, and a Tandem SAR shall be exercisable during its term only when
and to the extent the related Option is exercisable. A Freestanding SAR shall be
exercisable only during the period of the grantee's employment or service with
Cinergy or another Employer and for any post-termination exercise period as
would apply under the Award Agreement for the Option had the Freestanding SAR
Award to the grantee instead been an Award of NSOs.

      9.4  MANNER OF EXERCISE.

           A SAR granted under the Plan shall be exercised by the holder by
delivery to Cinergy's Secretary or his or her designee of notice of exercise in
accordance with procedures that shall have been specified by the Committee in
the Award Agreement or otherwise.

      9.5  PAYMENT TO HOLDER.

           If the form of consideration to be received upon exercise of the
Award is not specified in the Award Agreement, upon the exercise thereof, the
holder may request the form of consideration he or she wishes to receive in
satisfaction of the SAR, which may be in shares of Common Stock (valued at Fair
Market Value on the date of exercise of the SAR), or in cash, or partly in cash
and partly in shares of Common Stock, as the holder shall request. However, the
Committee, in its sole discretion, may consent to or disapprove any request of
the Participant to

                                      -18-
<Page>

receive cash in full or partial settlement of any SAR. Payment shall be subject
to applicable tax withholding.

      9.6  EFFECT OF EXERCISE OF TANDEM SAR ON RELATED OPTION.

           Upon the exercise of a Tandem SAR, the number of shares covered by
the related Option shall be reduced by the number of shares of Common Stock with
respect to which the SAR is exercised.

                                   ARTICLE 10
                                RESTRICTED STOCK

      10.1 TERMS AND CONDITIONS.

           The Committee may make Awards of Restricted Stock to Participants
without additional consideration or may offer to sell Restricted Stock to
Participants at a price that is equal to or less than its Fair Market Value. The
terms and conditions of any Restricted Stock Award shall be as determined by the
Committee and shall be set forth in the Award Agreement. The Award Agreement
shall specify the number of shares of Common Stock subject to the Award and the
applicable Restriction Period or Periods. Any Award Agreement may provide for
forfeiture of shares covered thereby if specified Performance Measures are not
attained during a Restriction Period and/or for termination of any Restriction
Period upon attainment of Performance Measures, but in no event may any Award
Agreement permit termination of any Restriction Period earlier than three years
after the Date of Grant of the pertinent Award except in the case of Awards that
are subject to Performance Measures (in which case the Restriction Period shall
be at least one year) or in the case of death, disability, retirement or in the
event of a Change in Control of Cinergy as described in Subsection 21.11 (Change
in Control).

      10.2 CERTIFICATES EVIDENCING OWNERSHIP OF RESTRICTED STOCK.

           During the Restriction Period, a certificate representing the
Restricted Stock shall be registered in the recipient's name and bear a
restrictive legend to the effect that ownership of

                                      -19-
<Page>

the Restricted Stock, and the enjoyment of all rights appurtenant to the
Restricted Stock, are subject to the restrictions, terms, and conditions
provided in the Plan and the applicable Award Agreement.

           Certificates representing Restricted Stock together with stock powers
or other instruments of assignment, each endorsed in blank, which will permit
transfer to Cinergy of all or any portion of the Restricted Stock evidenced by
the certificate in the event it is forfeited, shall be deposited by the
Participant with Cinergy. Upon the termination of an applicable Restriction
Period, and subject to remittance of applicable withholding tax, a certificate
or certificates evidencing ownership of the number of shares of Common Stock
previously evidenced by the certificate representing Restricted Stock, free of
restrictive legend (other than any relating to a right of first refusal of
Cinergy or required by any applicable securities laws), shall be issued to the
Participant, his or her beneficiary(ies), or legal representatives, promptly
after the expiration of the Restriction Period.

      10.3 RIGHTS WITH RESPECT TO SHARES DURING RESTRICTION PERIOD.

           Subject to the terms and conditions of the Award Agreement, the
Participant, as the owner of the Common Stock issued as Restricted Stock, shall
have all rights of a shareholder including, but not limited to, voting rights,
the right to receive cash or stock dividends on the shares, and the right to
participate in any capital adjustment of Cinergy. However, the Committee, in its
discretion, may determine to require that any dividends on Restricted Stock that
is subject to an Award be accumulated during the Restriction Period and may also
subject the payment of dividends to restrictions that may, but need not be, the
same as the restrictions applicable to the Restricted Stock. Any dividend
distributions with respect to shares of Restricted Stock other than in the form
of cash shall be held by Cinergy, and shall be subject to the same restrictions
as the shares with respect to which the distributions were made. Any grant

                                      -20-
<Page>

or sale may require that any or all cash dividends or other distributions paid
on the shares of Restricted Stock during the Restriction Period shall be
automatically sequestered and may be reinvested on an immediate or deferred
basis in additional shares of Common Stock, which may be subject to the same
restrictions as the Committee may determine.

                                   ARTICLE 11
                   PERFORMANCE SHARES AND PERFORMANCE AWARDS

      11.1 TERMS AND CONDITIONS.

           The Committee may make Awards of Performance Shares and Performance
Awards. The terms and conditions of any Performance Share Award or Performance
Award shall be set forth in the applicable Award Agreement. Each Award Agreement
shall specify the number or amount of Performance Shares or Performance Awards
subject to the Award, the Performance Period(s), which may be subject to earlier
termination in the event of a Change in Control of Cinergy as described in
Section 21.11 (Change in Control) or other similar transaction or event, and the
Performance Measures applicable to the Award.

      11.2 PAYMENT.

           Following the end of a Performance Period applicable to a granted
Award, the Committee shall determine and certify the extent (if any) to which
Performance Measures established for the Award were attained and, accordingly,
the number, if any, of shares of Common Stock or the amount of cash that shall
then become payable to the holder of the Award. If the Performance Shares or
Performance Awards are to be paid to the Participant in the form of shares of
Restricted Stock, the recipient must execute an Award Agreement regarding the
Restricted Stock as a condition of the issuance of such shares in his or her
name.

                                      -21-
<Page>

                                   ARTICLE 12
                                   CASH AWARDS

           The Committee may, at any time and in its discretion, grant to any
Optionee who is granted an NSO the right to receive, at the times and in the
amounts as determined by the Committee in its discretion, a cash amount ("Cash
Award") that is intended to reimburse the Optionee for all or a portion of the
federal, state, and local income taxes imposed upon the Optionee as a
consequence of the exercise of an NSO and the receipt of such a cash payment.

                                   ARTICLE 13
                              DIVIDEND EQUIVALENTS

           The Committee may make Awards of Dividend Equivalents. The terms and
conditions of any Dividend Equivalent Award shall be set forth in the applicable
Award Agreement. The Award Agreement shall set forth the number of shares of
Common Stock to which the Award relates and the circumstances (including any
applicable Performance Measures) under which, and the number, if any, of, shares
of Common Stock or the amount of cash that shall then become payable to the
holder of the Award. The Committee shall in its discretion determine the timing
of payment of the Award.

                                   ARTICLE 14
                            OTHER STOCK-BASED AWARDS

           The Committee may make Other Stock-Based Awards. The terms and
conditions of any Other Stock-Based Award shall be set forth in the applicable
Award Agreement or otherwise by the Committee. The circumstances (including any
applicable Performance Measures) under which, and the number, if any, of, shares
of Common Stock or the amount of cash that shall then become payable to the
holder of the Award shall be set forth in the applicable Award Agreement or
otherwise. The Committee shall in its discretion determine the timing of payment
of the Award.

                                      -22-
<Page>

                                   ARTICLE 15
                     REPLACEMENT AND EXTENSION OF THE TERMS
                          OF OPTIONS AND RELATED STOCK
                               APPRECIATION RIGHTS

           The Committee from time to time may permit an Optionee under the Plan
or any other stock option plan previously or subsequently adopted by an Employer
to surrender for cancellation any unexercised outstanding stock option and
related SAR and receive from his or her Employer in exchange an Option for the
number of shares of Common Stock as may be designated by the Committee. However,
the Committee may not authorize an exchange if the stock options to be
surrendered have an Option Price that is above the Fair Market Value of the
Common Stock (as calculated as provided in Section 8.4 (Option Price)) on the
date of the exchange, and the options to be granted in exchange therefor would
have an Option Price that is less than that of the stock options to be
surrendered. Optionees also may be granted related SARs or Cash Awards as
provided in Articles 9 (Stock Appreciation Rights) and 12 (Cash Awards).

                                   ARTICLE 16
                           AMENDMENT, MODIFICATION AND
                             TERMINATION OF THE PLAN

           Cinergy, by resolution duly adopted by Cinergy's Board of Directors,
shall have the right, authority and power to alter, amend, modify, suspend,
revoke or terminate the Plan in whole or in part at any time, including the
adoption of amendments deemed necessary or desirable to qualify the Awards under
the laws of various states and under rules and regulations promulgated by the
Securities and Exchange Commission with respect to officers and directors who
are subject to the provisions of Section 16 of the 1934 Act, to comply with any
applicable provisions of the Code, including Code Subsection 162(m) or to
correct any defect or supply any omission or reconcile any inconsistency in the
Plan or in any Award granted under the Plan, without the approval of Cinergy's
shareholders. However, no action shall be taken without the approval of

                                      -23-
<Page>

Cinergy's shareholders that would cause the Plan to no longer comply with Rule
16b-3, or any other regulatory requirements, or Code Subsection 162(m), or to
the extent such approval is required by other applicable law.

           No amendment or termination or modification of the Plan shall in any
manner adversely affect any Award previously granted without the consent of the
Participant, except that Cinergy's Board of Directors may amend or modify the
Plan in a manner that does adversely affect Awards previously granted upon a
finding by Cinergy's Board of Directors that the amendment or modification is in
the best interest of holders of outstanding Awards affected by the amendment or
modification.

                                   ARTICLE 17
                    EFFECT OF TERMINATION OF SERVICE OR DEATH

           In the event of termination of employment or service by reason of
death, disability, normal retirement, early retirement with the consent of the
Employer, termination of employment or service to enter military or other
government or eleemosynary service or leave of absence approved by the Employer,
or in the event of hardship or other special circumstances, of a Participant who
holds an Option or Stock Appreciation Right that is not immediately and fully
exercisable, any shares of Restricted Stock as to which the substantial risk of
forfeiture or the prohibition or restriction on transfer has not lapsed, any
Performance Shares or Performance Awards that had not been fully earned, any
Common Shares that are subject to any transfer restriction pursuant to Article
10 (Restricted Stock), any Dividend Equivalent Award or Other Stock-Based Award
that had not been fully earned or which is subject to any transfer restrictions,
the Committee may take any action that it deems to be equitable under the
circumstances or in the best interests of Cinergy or any other Employer,
including without limitation waiving or modifying any limitation or requirement
with respect to any Award under this Plan.

                                      -24-
<Page>

                                   ARTICLE 18
                                 TRANSFERABILITY

           Except with the prior approval of and upon conditions established by
the Committee, no Option or other derivative security (as that term is defined
in Rule 16b-3) granted pursuant to the Plan shall be transferable otherwise than
by will or by the laws of descent and distribution. During the lifetime of an
Optionee, the Option and Stock Appreciation Rights shall be exercisable only by
the Optionee personally or, in the event of the Participant's legal incapacity,
by the Participant's guardian or legal representative acting in a fiduciary
capacity on behalf of the Participant under applicable state law and judicial
supervision. The Committee, in its sole discretion, may provide for the
transferability of particular Awards under the Plan so long as the provisions
will not disqualify the exemption for other Awards under Rule 16b-3. Any grant
made under the Plan may provide that all or any part of the shares of Common
Stock that are to be issued or transferred by Cinergy upon the exercise of
Options or Stock Appreciation Rights or in payment of Performance Shares on
Performance Awards, Dividend Equivalents or Other Stock-Based Awards, or that
are no longer subject to the substantial risk of forfeiture and restrictions on
transfer referred to in Article 10 (Restricted Stock), shall be subject to
further restrictions upon transfer.

                                   ARTICLE 19
                              SHAREHOLDER APPROVAL

           The Plan shall be subject to approval by a majority vote of the votes
cast at a duly held shareholders' meeting of Cinergy at which a quorum
representing the majority of all outstanding voting stock is, either in person
or by proxy, present and voting on the Plan.

                                   ARTICLE 20
                            FUNDING POLICY AND METHOD

         The Plan shall be totally unfunded. No Participant shall have any
  interest in any fund or specific asset of an Employer by reason of the Plan.

                                      -25-
<Page>

                                   ARTICLE 21
                                  MISCELLANEOUS

      21.1 NO ENLARGEMENT OF EMPLOYEE BENEFITS.

           The Plan is strictly a voluntary undertaking on the part of the
Employers and shall not be deemed to constitute a contract between an Employer
and any Participant or to be consideration for, or inducement to, or a condition
of, the employment or service of any Participant. Nothing contained in the Plan
shall be deemed to give any Participant the right to be retained in the service
of his or her Employer or to interfere with the right of his or her Employer to
discharge any Participant at any time. No Participant shall have any right to
benefits under the Plan except to the extent provided in this document. Any
Award under this Plan shall not be deemed compensation for purposes of computing
benefits or contributions under any qualified pension plan of an Employer, and
shall not affect any benefits under any other benefit plan of any kind currently
or subsequently in effect under which the availability or amount of benefits is
related to the level of compensation.

      21.2 NOTICE OF ADDRESS.

           Each Award recipient must file with the Committee, in accordance with
procedures established by the Committee, his or her post office address and each
change of post office address. Any communication, statement or notice addressed
to a person at his latest post office address as filed with the Committee will,
upon deposit in the United States mail with postage prepaid, be binding upon
that person for all purposes of the Plan.

      21.3 NO INDIVIDUAL LIABILITY.

           It is declared to be the express purpose and intention of the Plan
that, except as otherwise required by law, no individual liability whatever
shall attach to, or be incurred by, Cinergy, its shareholders, officers,
employees, or members of Cinergy's Board of Directors, each other Employer's
shareholders, officers, employees, or members of its board of directors, or any

                                      -26-
<Page>

representatives appointed by the Committee, under or by reason of any of the
Plan's terms or conditions. Each Award recipient shall be legally bound by the
provisions of the Plan.

      21.4 GOVERNING LAWS.

           The Plan shall be construed and administered according to the laws of
the State of Delaware (without giving effect to the conflict of law principles
of that State) to the extent that those laws are not preempted by the laws of
the United States of America.

      21.5 RISK OF PARTICIPATION.

           Nothing contained in the Plan shall be construed either as a
guarantee by the Plan or Cinergy, its shareholders, officers, employees, or
members of Cinergy's Board of Directors, each other Employer, its shareholders,
officers, employees or members of its board of directors of the value of any
assets of the Plan or as an agreement by the Plan or Cinergy, its shareholders,
officers, employees or members of Cinergy's Board of Directors, each other
Employer, its shareholders, officers, employees or members of its board of
directors, to indemnify anyone for any losses, damages, costs and/or expenses
resulting from participation in the Plan.

      21.6 HEADINGS.

           The headings of articles, sections, subsections, paragraphs or other
parts of the Plan are for convenience of reference only and do not define,
limit, construe or otherwise affect the contents thereof.

      21.7 EXPENSES.

           All expenses of administering the Plan shall be borne by the
Employers.

      21.8 WITHHOLDING TAXES.

           Cinergy shall, to the extent required by applicable law, withhold or
cause to be withheld, federal, state and/or local taxes in connection with the
exercise, vesting or settlement of an Award. Unless otherwise provided in the
applicable Award Agreement, each Participant

                                      -27-
<Page>

may satisfy any tax withholding obligation by any of the following means, or by
a combination of these means: (i) a cash payment, (ii) subject to Committee
approval, by delivery to Cinergy of a number of shares of Common Stock having a
Fair Market Value, as of the Tax Withholding Date (the date the withholding tax
obligation first arises with respect to an Award), sufficient to satisfy the
amount of the required withholding tax obligation arising from an exercise,
vesting or settlement of an Award, (iii) subject to Committee approval, by
authorizing Cinergy to withhold from the shares of Common Stock otherwise
issuable to the Participant pursuant to the exercise or vesting of an Award, a
number of shares having a Fair Market Value, as of the Tax Withholding Date,
that will satisfy the amount of the required withholding tax obligation, or (iv)
by a combination of such methods of payment. If the amount requested is not
paid, an Employer may refuse to satisfy the Award.

      21.9 AWARD AGREEMENTS.

           After the Committee grants an Award to a Participant, it shall cause
the Employer to enter into a written or electronic agreement or agreements with
the Participant. Any certificates for Common Stock issued to Optionees may bear
a legend evidencing any representations or restrictions.

     21.10 RIGHTS AS A SHAREHOLDER.

           Grant of any Option, SAR, Dividend Equivalent, Other Stock-Based
Award or Performance Shares or Performance Award shall not confer upon the
grantee any rights of a shareholder with respect to any shares subject to the
Award. A recipient of an Award consisting of an Option, SAR, Dividend
Equivalent, Other Stock-Based Award or Performance Shares or Performance Award
or a transferee of any such Award shall have no right as a shareholder with
respect to any Common Stock covered by an Option (or receivable upon the
exercise of an Option), SAR, Dividend Equivalent Other Stock-Based Award or
Performance Shares or

                                      -28-
<Page>

Performance Award, until the Participant or transferee shall have become the
holder of record of the Common Stock. No adjustments shall be made for dividends
in cash or other property or other distributions or rights in respect to Common
Stock for which the record date is prior to the date on which the Participant or
transferee shall have in fact become the holder of record of the shares of
Common Stock acquired pursuant to the Option, SAR, Dividend Equivalent, Other
Stock-Based Award or Performance Shares or Performance Award.

     21.11 CHANGE IN CONTROL.

           Notwithstanding anything in the Plan to the contrary, without
Participant consent, in the event of a Change in Control of Cinergy, unless
otherwise provided in the related Award Agreement: (i) each unexpired Option and
Stock Appreciation Right shall become exercisable in full, (ii) all restrictions
(other than restrictions imposed by law) and conditions of all Restricted Stock
(other than Restricted Stock subject to Performance Measures), Dividend
Equivalents and Other Stock-Based Awards then outstanding shall be deemed
satisfied subject to any holding period limitations, (iii) all Performance
Measures of all Performance Shares and Performance Awards, Restricted Stock,
Dividend Equivalents and Other Stock-Based Awards shall be deemed fully
satisfied at the maximum criteria levels, and (iv) all Performance Shares and
Performance Awards shall be paid in full within thirty (30) days following the
Change in Control.

           A "Change in Control" of Cinergy shall be deemed to have occurred if
any of the following events occur:

           (1)  Any Person is or becomes the beneficial owner (as defined in
                Rule 13d-3 under the 1934 Act), directly or indirectly, of
                securities of Cinergy (not including in the securities
                beneficially owned by such Person any securities acquired
                directly from Cinergy or its affiliates) representing more than
                twenty percent (20%) of the combined voting power of

                                      -29-
<Page>

                Cinergy's then outstanding securities, excluding any Person who
                becomes such a beneficial owner in connection with a transaction
                described in clause (i) of paragraph (2) below; or

           (2)  There is consummated a merger or consolidation of Cinergy or
                any direct or indirect subsidiary of Cinergy with any other
                corporation, partnership or other entity, other than (i) a
                merger or consolidation that would result in the voting
                securities of Cinergy outstanding immediately prior to that
                merger or consolidation continuing to represent (either by
                remaining outstanding or by being converted into voting
                securities of the surviving entity or its parent) at least sixty
                percent (60%) of the combined voting power of the securities of
                Cinergy or the surviving entity or its parent outstanding
                immediately after the merger or consolidation, or (ii) a merger
                or consolidation effected to implement a recapitalization of
                Cinergy (or similar transaction) in which no Person is or
                becomes the beneficial owner, directly or indirectly, of
                securities of Cinergy (not including in the securities
                beneficially owned by such a Person any securities acquired
                directly from Cinergy or its affiliates other than in connection
                with the acquisition by Cinergy or its affiliates of a business)
                representing twenty percent (20%) or more of the combined voting
                power of Cinergy's then outstanding securities; or

           (3)  During any period of two (2) consecutive years, individuals
                who at the beginning of that period constitute Cinergy's Board
                of Directors and any new director (other than a director whose
                initial assumption of office is in connection with an actual or
                threatened election contest, including but not

                                      -30-
<Page>

                limited to a consent solicitation, relating to the election of
                directors of Cinergy) whose appointment or election by Cinergy's
                stockholders was approved or recommended by a vote of at least
                two-thirds (2/3) of the directors then still in office who
                either were directors at the beginning of that period or whose
                appointment, election, or nomination for election was previously
                so approved or recommended cease for any reason to constitute a
                majority of Cinergy's Board of Directors; or

           (4)  The stockholders of Cinergy approve a plan of complete
                liquidation or dissolution of Cinergy or there is consummated a
                sale or disposition by Cinergy of all or substantially all of
                Cinergy's assets, other than a sale or disposition by Cinergy of
                all or substantially all of Cinergy's assets to an entity, at
                least sixty percent (60%) of the combined voting power of the
                voting securities of which are owned by stockholders of Cinergy
                in substantially the same proportions as their ownership of
                Cinergy immediately prior to the sale.

           For purposes of this Section, "Person" has the meaning set forth in
paragraph 3(a)(9) of the 1934 Act, as modified and used in subsections 13(d) and
14(d) of the 1934 Act; however, a Person will not include the following: (1)
Cinergy or any of its subsidiaries or affiliates; (2) a trustee or other
fiduciary holding securities under an employee benefit plan of Cinergy or any of
its subsidiaries or affiliates; (3) an underwriter temporarily holding
securities pursuant to an offering of those securities; or (4) a corporation
owned, directly or indirectly, by the stockholders of Cinergy in substantially
the same proportions as their ownership of stock of Cinergy.

                                      -31-
<Page>

           Notwithstanding the provisions of Article 16 (Amendment, Modification
and Termination of the Plan), the foregoing provisions of this Section may not
be amended by an amendment to the Plan effected within three years following a
Change in Control.

                                   ARTICLE 22
                           CONTINUANCE BY A SUCCESSOR

           In the event that Cinergy or any other Employer shall be reorganized
by way of merger, consolidation, transfer of assets or otherwise, so that a
corporation, partnership or person other than an Employer shall succeed to all
or substantially all of that Employer's business, the successor may be
substituted for the Employer under the Plan by adopting the Plan.

           IN WITNESS WHEREOF, Cinergy Corp. has caused this Plan document to be
executed and approved by its duly authorized officers, effective as of January
25, 2002.

                               CINERGY CORP.

                               By:
                                  ----------------------------------------------
                                James E. Rogers
                                Chairman, President and Chief Executive Officer

                               Dated:
                                     -------------------------------------------

Approved:

By:
   ---------------------------------

Dated:
      ------------------------------

                                      -32-

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