NACO VARIABLE ACCOUNT OF NATIONWIDE LIFE INS CO
485BPOS, 1998-06-30
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<PAGE>   1
             As filed with the Securities and Exchange Commission.

                                               '33 Act Registration No. 33-33425
                                               '40 Act Registration No. 811-5999

================================================================================


                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D. C. 20549


                                    FORM N-4



                   REGISTRATION STATEMENT UNDER THE SECURITIES
                                   ACT OF 1933


   
                       POST-EFFECTIVE AMENDMENT NO. 15      [X]


                                       and

                        REGISTRATION STATEMENT UNDER THE
                         INVESTMENT COMPANY ACT OF 1940

                              AMENDMENT NO. 16              [X]
    

                              NACO VARIABLE ACCOUNT
                           (Exact Name of Registrant)


                        NATIONWIDE LIFE INSURANCE COMPANY
                               (Name of Depositor)


                   ONE NATIONWIDE PLAZA, COLUMBUS, OHIO 43215
         (Address of Depositor's Principal Executive Offices) (Zip Code)


        Depositor's Telephone Number, including Area Code: (614) 249-7111



     DENNIS W. CLICK, SECRETARY, ONE NATIONWIDE PLAZA, COLUMBUS, OHIO 43215
                     (Name and Address of Agent for Service)

This Post-Effective Amendment amends the Registration Statement in respect of
the Prospectus, Statement of Additional Information, and the Financial
Statements.

It is Proposed that this filing will become effective (check appropriate space)

   
  [   ]   immediately upon filing pursuant to paragraph (b) of Rule 485
  [ X ]   on June 30, 1998,  pursuant to paragraph (b) of Rule 485
  [   ]   60 days after filing pursuant to paragraph (a)(1) of Rule 485
  [   ]   on (date) pursuant to paragraph (a)(1) of Rule 485
    

================================================================================





<PAGE>   2




                              NACO VARIABLE ACCOUNT
                     REFERENCE TO ITEMS REQUIRED BY FORM N-4

<TABLE>
<CAPTION>
N-4 ITEM                                                                                              PAGE
Part A   INFORMATION REQUIRED IN A PROSPECTUS
<S>                        <C>                                                                        <C>
     Item  1.              Cover page............................................................      3
     Item  2.              Definitions...........................................................      5
     Item  3.              Synopsis or Highlights................................................     14
     Item  4.              Condensed Financial Information.......................................     15
     Item  5.              General Description of Registrant, Depositor,
                           and Portfolio Companies...............................................     18
     Item  6.              Deductions and Expenses...............................................     19
     Item  7.              General Description of the Variable Annuity Contract..................     22
     Item  8.              Annuity Period........................................................     25
     Item  9.              Death Benefit.........................................................     26
     Item 10.              Purchases and Contract Value..........................................     23
     Item 11.              Redemptions...........................................................     25
     Item 12.              Taxes.................................................................     30
     Item 13.              Legal Proceedings.....................................................     31
     Item 14.              Table of Contents of the Statement of Additional Information..........     32

Part B   INFORMATION REQUIRED IN A STATEMENT OF ADDITIONAL INFORMATION
     Item 15.              Cover Page............................................................     38
     Item 16.              Table of Contents.....................................................     38
     Item 17.              General Information and History.......................................     38
     Item 18.              Services..............................................................     38
     Item 19.              Purchase of Securities Being Offered..................................     38
     Item 20.              Underwriters..........................................................     39
     Item 21.              Calculation of Performance............................................     39
     Item 22.              Annuity Payments......................................................     41
     Item 23.              Financial Statements..................................................     42

Part C   OTHER INFORMATION
     Item 24.              Financial Statements and Exhibits.....................................     89
     Item 25.              Directors and Officers of the Depositor...............................     91
     Item 26.              Persons Controlled by or Under Common Control
                           with the Depositor or Registrant......................................     93
     Item 27.              Number of Contract Owners.............................................    103
     Item 28.              Indemnification.......................................................    103
     Item 29.              Principal Underwriters................................................    103
     Item 30.              Location of Accounts and Records......................................    105
     Item 31.              Management Services...................................................    105
     Item 32.              Undertakings..........................................................    105
</TABLE>



<PAGE>   3
   
                        SUPPLEMENT DATED JUNE 30, 1998 TO
                        PROSPECTUS DATED MAY 1, 1998 FOR

                    GROUP FLEXIBLE FUND RETIREMENT CONTRACTS

                                    ISSUED BY

                        NATIONWIDE LIFE INSURANCE COMPANY

                                   THROUGH ITS

                              NACO VARIABLE ACCOUNT

THIS SUPPLEMENT UPDATES CERTAIN INFORMATION CONTAINED IN YOUR PROSPECTUS. PLEASE
READ IT AND KEEP IT WITH YOUR PROSPECTUS FOR FUTURE REFERENCE.

1.    THE FOLLOWING UNDERLYING MUTUAL FUND OPTIONS LOCATED ON PAGE 1 OF THE
      PROSPECTUS CHANGED THEIR NAMES EFFECTIVE MAY 9, 1998:

                            Nationwide Fund - Class D
                        Nationwide Growth Fund - Class D

2.    THE EXPENSE TABLE LOCATED ON PAGES 7 THROUGH 8 OF THE PROSPECTUS IS HEREBY
      AMENDED TO INCLUDE THE FOLLOWING INFORMATION:


                   UNDERLYING MUTUAL FUND ANNUAL EXPENSES(1)
                          (After Expense Reimbursement)
         (as a percentage of Underlying Mutual Fund average net assets)

<TABLE>
<CAPTION>
                                         =============================================================
                                                                                    Total Underlying
                                          Management        Other         12b-1        Mutual Fund
                                             Fees          Expenses        Fees      Annual Expenses
- ------------------------------------------------------------------------------------------------------
<S>                                          <C>            <C>           <C>             <C>  
Nationwide Fund - Class D                    0.57%          0.15%         0.00%           0.72%
- ------------------------------------------------------------------------------------------------------
Nationwide Growth Fund - Class D             0.58%          0.20%         0.00%           0.78%
- ------------------------------------------------------------------------------------------------------
Nationwide Money Market Fund                 0.40%          0.20%         0.00%           0.60%
- ------------------------------------------------------------------------------------------------------
</TABLE>

On May 9, 1998, the assets of the Nationwide Fund, Nationwide Growth Fund, and
Nationwide Money Market Fund (the "Acquired Funds") were acquired by
corresponding funds in a new Ohio business trust in exchange for the assumption
of the stated liabilities of the Acquired Funds and a number of full and
fractional Class D shares of the applicable new fund (for the Nationwide Money
Market Fund, shares will be issued without class designation) (the
"Reorganization"). The Reorganization has previously been approved by
shareholders of the Acquired Funds. Prior to the time of the Reorganization, the
Total Underlying Mutual Fund Annual Expenses were 0.60% for the Nationwide Fund,
0.64% for the Nationwide Growth Fund, and 0.59% for the Nationwide Money Market
Fund.
    


                                       1

                                    3 of 132


<PAGE>   4


   

3.    THE "EXAMPLE" LOCATED AT PAGES 9 THROUGH 11 OF THE PROSPECTUS IS HEREBY
      AMENDED TO INCLUDE THE FOLLOWING INFORMATION:

                                     EXAMPLE

The following chart depicts the dollar amount of expenses that would be incurred
under the Contract assuming a maximum Variable Account annual expense rate of
0.95% of average account value, a $1,000 initial Purchase Payment and 5% annual
return on assets.

<TABLE>
<CAPTION>
                                                                 ----------------------------------------------------
                                                                           If you surrender your Contract
                                                                            at the end of the applicable
                                                                                     time period
- ---------------------------------------------------------------------------------------------------------------------
                                                                    1 Yr.        3 Yrs.       5 Yrs.       10 Yrs.
- ---------------------------------------------------------------------------------------------------------------------
<S>                                                                  <C>          <C>           <C>          <C>
Nationwide Fund - Class D                                            68           104           144          253
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Growth Fund - Class D                                     68           106           147          260
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Money Market Fund                                         66           100           137          240
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

This Example should not be considered a representation of past or future
expenses. Actual expenses may be greater or lesser than those shown.

                              EXAMPLE (CONTINUED)

The following chart depicts the dollar amount of expenses that would be incurred
under the Contract assuming a maximum Variable Account annual expense rate of
0.95% of average account value, a $1,000 initial Purchase Payment and 5% annual
return on assets.

<TABLE>
<CAPTION>
                                                                 ----------------------------------------------------
                                                                       If you do not surrender your Contract
                                                                            at the end of the applicable
                                                                                     time period
- ---------------------------------------------------------------------------------------------------------------------
                                                                    1 Yr.        3 Yrs.       5 Yrs.       10 Yrs.
- ---------------------------------------------------------------------------------------------------------------------
<S>                                                                  <C>           <C>          <C>          <C>
Nationwide Fund - Class D                                            18            54           94           203
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Growth Fund - Class D                                     18            56           97           210
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Money Market Fund                                         16            50           87           190
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

This Example should not be considered a representation of past or future
expenses. Actual expenses may be greater or lesser than those shown.

                               EXAMPLE (CONTINUED)

The following chart depicts the dollar amount of expenses that would be incurred
under the Contract assuming a maximum Variable Account annual expense rate of
0.95% of average account value, a $1,000 initial Purchase Payment and 5% annual
return on assets.

<TABLE>
<CAPTION>
                                                                 ----------------------------------------------------
                                                                           If you annuitize your Contract
                                                                      at the end of the applicable time period
- ---------------------------------------------------------------------------------------------------------------------
                                                                    1 Yr.        3 Yrs.       5 Yrs.       10 Yrs.
- ---------------------------------------------------------------------------------------------------------------------
<S>                                                                  <C>           <C>          <C>          <C>
Nationwide Fund - Class D                                            18            54           94           203
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Growth Fund - Class D                                     18            56           97           210
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Money Market Fund                                         16            50           87           190
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

This Example should not be considered a representation of past or future
expenses. Actual expenses may be greater or lesser than those shown.
    



                                       2

                                    4 of 132

<PAGE>   5


   

4.   "APPENDIX A" LOCATED AT PAGES 27 THROUGH 32 OF THE PROSPECTUS IS HEREBY
     AMENDED TO INCLUDE THE FOLLOWING INVESTMENT OBJECTIVE INFORMATION:

NATIONWIDE FUND - CLASS D (EFFECTIVE MAY 9, 1998)
The investment objective of the Fund is to seek total return through a flexible
combination of current income and capital appreciation. The Fund invests
primarily in common stocks, but also in convertible securities, other equity
securities, bonds and money market obligations. Nationwide Advisory Services,
Inc. serves as the Fund's investment adviser.

NATIONWIDE GROWTH FUND - CLASS D (EFFECTIVE MAY 9, 1998)
The investment objective of the Fund is to seek long term capital appreciation
by investing primarily in equity securities of companies of all sizes. Major
emphasis in the selection of securities is placed on companies which have
capable management, and are in fields where social and economic trends,
technological developments, and new processes or products indicate a potential
for greater-than-average growth.

NATIONWIDE MONEY MARKET FUND (EFFECTIVE MAY 9, 1998)
The investment objective of the Fund is to seek as high a level of current
income as is consistent with the preservation of capital and maintenance of
liquidity. The Fund invests in high-quality money market instruments maturing in
397 days or less. Nationwide Advisory Services, Inc. serves as the Fund's
investment adviser.
    


                                        3

                                    5 of 132
<PAGE>   6





                        NATIONWIDE LIFE INSURANCE COMPANY

                                   Home Office
                                 P. O. Box 16766
                              One Nationwide Plaza
                              Columbus, Ohio 43216
                     1-800-545-4730, (T.T.Y. 1-800-848-0833)

                    GROUP FLEXIBLE FUND RETIREMENT CONTRACTS
                     ISSUED BY THE NACO VARIABLE ACCOUNT OF
                        NATIONWIDE LIFE INSURANCE COMPANY

The Group Flexible Fund Retirement Contracts (the "Contract" or "Contracts")
described in this prospectus are designed for use in connection with deferred
compensation Plans adopted by Member Counties under the NACo Program and the
Contracts may be issued either as Allocated Contracts or Unallocated Contracts.
Such Plans generally qualify for favorable tax treatment under Section 457 of
the Internal Revenue Code ("Code").

The assets of the Plans are part of the general assets of the Member County,
provided however that the Member County must hold all Plan assets for the
exclusive benefit of the Plan's Participants and Beneficiaries. Rights and
privileges under the Contracts may be exercised by the Member County to the
extent such rights are not specifically reserved in the Plan for Participants as
a group or as individuals. The Member County may not take any action
inconsistent with the rights of the Plan's Participants. The Participants have a
contractual claim against the Member County for the benefits promised by the
Plans. The Participants are generally not subject to tax until Distributions are
received from the Plan. Purchase Payments made at any time by or on behalf of
any Participant must be at least $20 per month.

Purchase Payments are allocated to the NACo Variable Account (the "Variable
Account"), a separate account of Nationwide Life Insurance Company (the
"Company"). The Variable Account is divided into Sub-Accounts, each of which
invests in shares of the underlying Mutual Funds described below:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
<S>                                                           <C>
American Century:  Twentieth Century Ultra                    Nationwide Asset Allocation Trust (collectively
                                                                "Nationwide Professionally Managed Portfolios" or
                                                                "NPMP")
- -------------------------------------------------------------------------------------------------------------------------
The Dreyfus Third Century Fund, Inc.                                - NPMP - The Aggressive Portfolio
- -------------------------------------------------------------------------------------------------------------------------
Federated U.S. Government Securities Fund: 2-5  Years -             - NPMP - The Conservative Portfolio
   Institutional Shares                                             - NPMP - The Moderate Portfolio
- -------------------------------------------------------------------------------------------------------------------------
Fidelity Equity - Income Fund                                       - NPMP - The Moderately Aggressive Portfolio
- -------------------------------------------------------------------------------------------------------------------------
Fidelity OTC Portfolio                                              - NPMP - The Moderately Conservative Portfolio
- -------------------------------------------------------------------------------------------------------------------------
Fidelity Puritan Fund
- -------------------------------------------------------------------------------------------------------------------------
MAS Funds Fixed Income Portfolio                              Neuberger & Berman Guardian Fund, Inc.
- -------------------------------------------------------------------------------------------------------------------------
MFS(R)High Income Fund - Class A                               Putnam Investors Fund - Class A
- -------------------------------------------------------------------------------------------------------------------------
Nationwide(R)Fund                                              Putnam Voyager Fund - Class A
- -------------------------------------------------------------------------------------------------------------------------
Nationwide Money Market Fund                                  SEI Index Funds - S&P 500 Index Portfolio
- -------------------------------------------------------------------------------------------------------------------------
Nationwide Separate Account Trust - Nationwide Small          Seligman Growth Fund, Inc. - Class A
   Company Fund
- -------------------------------------------------------------------------------------------------------------------------
                                                              Short-Term   Investments  Trust  -  Treasury  Portfolio  -
                                                                Institutional Class
- -------------------------------------------------------------------------------------------------------------------------
                                                              T. Rowe Price International Stock Fund(R)
- -------------------------------------------------------------------------------------------------------------------------
                                                              Templeton Foreign Fund - Class I
- -------------------------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>   7
<TABLE>
<CAPTION>
<S>                                                               <C>    
                               NOT AVAILABLE FOR NEW PLANS ESTABLISHED ON OR AFTER JUNE 30, 1998

- -------------------------------------------------------------------------------------------------------------------------
                                                        Fidelity Contrafund
- -------------------------------------------------------------------------------------------------------------------------

                              NOT AVAILABLE FOR NEW CONTRACTS ISSUED ON OR AFTER OCTOBER 1, 1997

- -------------------------------------------------------------------------------------------------------------------------
                                                        Fidelity Magellan(R) Fund
- -------------------------------------------------------------------------------------------------------------------------

                             NOT AVAILABLE FOR NEW CONTRACTS ISSUED ON OR AFTER MAY 1, 1997

- -------------------------------------------------------------------------------------------------------------------------
         American Century: Twentieth Century Growth              Massachusetts Investors Growth Stock Fund - Class A
- -------------------------------------------------------------------------------------------------------------------------

                              MAY NOT BE AVAILABLE TO ALL CONTRACT OWNERS ON OR AFTER JULY 1, 1994

- -------------------------------------------------------------------------------------------------------------------------
             The Bond Fund of America (SM), Inc.                      The Investment Company of America (R), Inc.
- -------------------------------------------------------------------------------------------------------------------------

                            NOT AVAILABLE FOR NEW CONTRACTS ISSUED ON OR AFTER OCTOBER 1, 1993

- -------------------------------------------------------------------------------------------------------------------------
Evergreen Income and Growth Fund (formerly "Evergreen Total                    Nationwide(R) Growth Fund
                       Return Fund")
- -------------------------------------------------------------------------------------------------------------------------
                  MFS(R) Growth Opportunities Fund - Class A (formerly "MFS(R) Capital Development Fund")
- -------------------------------------------------------------------------------------------------------------------------

                              NOT AVAILABLE FOR OWNERS WHOSE PREDECESSOR NATIOWIDE DC VARIABLE ACCOUNT
                                          CONTRACT WAS ISSUED ON OR AFTER JANUARY 1, 1987

- -------------------------------------------------------------------------------------------------------------------------
                               Fidelity Capital & Income Fund (formerly "Fidelity High Income Fund")
- -------------------------------------------------------------------------------------------------------------------------
</TABLE>

This prospectus provides you with the basic information you should know about
the Contracts issued by the Variable Account before investing. You should read
it and keep it for future reference. A Statement of Additional Information dated
May 1, 1998 containing further information about the Contracts and the Variable
Account has been filed with the Securities and Exchange Commission ("SEC"). You
can obtain a copy without charge from the Company by calling the number listed
above, or writing P.O. Box 16766, One Nationwide Plaza, Columbus, Ohio 43216.

THE BENEFITS DESCRIBED IN THIS PROSPECTUS MAY NOT BE AVAILABLE IN EVERY
JURISDICTION. PLEASE REFER TO YOUR CONTRACT FOR SPECIFIC BENEFIT INFORMATION.

INVESTMENTS IN THESE CONTRACTS ARE NOT DEPOSITS OR OBLIGATIONS OF, AND ARE NOT
GUARANTEED OR ENDORSED BY, ANY ADVISER OF THE UNDERLYING MUTUAL FUNDS IDENTIFIED
ABOVE, THE U.S. GOVERNMENT, OR ANY BANK OR BANK AFFILIATE. INVESTMENTS ARE NOT
FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL
RESERVE BOARD, OR ANY OTHER GOVERNMENTAL AGENCY. ANY INVESTMENT IN THE CONTRACT
INVOLVES CERTAIN INVESTMENT RISK WHICH MAY INCLUDE THE POSSIBLE LOSS OF
PRINCIPAL.

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SEC NOR HAS THE
SEC PASSED UPON THE ACCURACY OR ADEQUACY OF THE PROSPECTUS. ANY REPRESENTATION
TO THE CONTRARY IS A CRIMINAL OFFENSE.

THE SEC MAINTAINS A WEB SITE, www.sec.gov, THAT CONTAINS THE STATEMENT OF
ADDITIONAL INFORMATION AS WELL AS MATERIAL INCORPORATED BY REFERENCE RELATING TO
THIS PROSPECTUS.

THE STATEMENT OF ADDITIONAL INFORMATION, DATED MAY 1, 1998, IS INCORPORATED
HEREIN BY REFERENCE. THE TABLE OF CONTENTS FOR THE STATEMENT OF ADDITIONAL
INFORMATION APPEARS ON PAGE 30 OF THIS PROSPECTUS.

                   THE DATE OF THIS PROSPECTUS IS MAY 1, 1998.

<PAGE>   8



                                GLOSSARY OF TERMS

ACCUMULATION UNIT- A statistical index measuring the net investment results of
each Sub-Account. It is the unit of measurement used to determine Contract Value
and each Participant Account value.

ALLOCATED CONTRACT- A Contract where individual accounts are maintained by the
Company on behalf of each Participant.

ANNUITANT- The person upon whose continuation of life any annuity payment
involving life contingencies depends.

ANNUITIZATION- The date on which annuity payments commence.

ANNUITY COMMENCEMENT DATE- The date on which annuity payments are scheduled to
commence.

BENEFICIARY- The person named on the application to receive certain benefits
under the Contract upon the death of the designated Annuitant. The Beneficiary
can be changed by the Contract Owner as set forth in the Contract.

CODE- The Internal Revenue Code of 1986, as amended.

COMPANY- Nationwide Life Insurance Company.

CONTINGENT BENEFICIARY- The person named on the application to be the alternate
Beneficiary if the named Beneficiary is not living at the time of the death of
the designated Annuitant.

CONTRACT- The Group Flexible Fund Retirement Contract issued by the Company to
the Contract Owner under which the Company invests Purchase Payments made by the
Contract Owner and assists the Contract Owner in making Retirement Income
Payments at specified dates.

CONTRACT ANNIVERSARY- An anniversary of the date of issue of the Contract.

CONTRACT DATE- The date of issue shown on the Contract.

CONTRACT OWNER- The Member County to which the Contract is issued.

CONTRACT VALUE- The sum of the value of all Accumulation Units attributable to
the Contract plus any amount held under the Contract in the General Account.

CONTRACT YEAR- Each period starting with either: (1) the Contract Date; or (2) a
Contract Anniversary. The Contract Year ends immediately prior to the next
Contract Anniversary.

DISTRIBUTION- Any payment by the Company of part or all of the Contract Value.

DISTRIBUTION PERIOD - The period during which payments are distributed from a
Participant Account.

GENERAL ACCOUNT- All assets of the Company other than those of the Variable
Account or in other separate accounts that have been or may be established by
the Company.

HOME OFFICE- The main office of the Company located in Columbus, Ohio.

INITIAL TRANSFER - The initial amount transferred by the Contract Owner from an
investment product offered by a provider other than the Company. An Initial
Transfer will be the initial Purchase Payment under a Contract.

MEMBER COUNTY- A county which is a member of the National Association of
Counties ("NACo") or an entity approved by the President of NACo for
participation under the NACo Program.

NACO PROGRAM - The deferred compensation program established and administered
pursuant to Section 457 of the Code for the benefit of Member Counties.

NET ASSET VALUE- The worth of one share of an Underlying Mutual Fund at the end
of a market day or at the close of the New York Stock Exchange. Net Asset Value
is computed by adding the value of all portfolio holdings plus other assets,
deducting liabilities and then dividing the result by the number of shares
outstanding.

PARTICIPANT - An eligible employee, member, or other person who is entitled to
benefits under the Plan. Such persons are determined and reported to the Company
by the Contract Owner.

PARTICIPANT ACCOUNT - An account established by the Company for each Participant
in which all financial transactions occurring with respect to a Participant,
other than the purchase and payment of an annuity made from the Company's
General Account, are recorded.



<PAGE>   9

PARTICIPANT ACCOUNT MAINTENANCE CHARGE- The maximum Participant Account
Maintenance Charge is $50. This charge is subject to negotiation between the
Contract Owner and the Company.

PARTICIPANT ACCOUNT YEAR- For each Participant, the Participant Account Year is
each one year period starting with either the Participant Effective Date or a
Participant Anniversary.

PARTICIPANT ANNIVERSARY-  An anniversary of the Participant Effective Date.

PARTICIPANT EFFECTIVE DATE- For each Participant, the Participant Effective Date
is the first date Accumulation Units are credited to the Participant's Account
on behalf of such Participant under the Contract.

PLAN- A Member County's Code Section 457 deferred compensation plan established
and administered under the auspices of the NACo Program. The Plan document is
referred to in the Contract schedule as the Plan. The assets of the Plan are
part of the general assets of the Member County, provided that the Member County
must hold all such Plan assets for the exclusive benefit of the Plan's
Participants and Beneficiaries. The Participants have a contractual claim
against the Member County for the benefits promised by the Plan.

PURCHASE PAYMENT- A deposit of new value into the Contract in order to provide
retirement income benefits.

RETIRED PARTICIPANT- A Participant for whom payments under an Optional
Retirement Income Form are being made.

RETIREMENT INCOME PAYMENTS- Periodic payments of the Participant Account made by
the Company to the Participant or to a designated Beneficiary during the
Distribution Period.

RETIREMENT COMMENCEMENT DATE- The date upon which Retirement Income Payments
commence.

SUB-ACCOUNT- A separate and distinct division of the Variable Account, to which
specific Underlying Mutual Fund shares are allocated and for which Accumulation
Units are separately maintained.

UNALLOCATED CONTRACT- A Contract under which a single account is maintained by
the Company on behalf of a Plan.

UNDERLYING MUTUAL FUND- A registered open-end management investment company
specified on the Contract application in which the assets of a Sub-Account will
be invested.

VALUATION DATE- Each day the New York Stock Exchange and the Home Office are
open for business or any other day during which there is a sufficient degree of
trading of the Variable Account's Underlying Mutual Fund shares that the current
Variable Account Contract Value might be materially affected.

VARIABLE ACCOUNT- NACo Variable Account, a segregated investment account
established by the Company in which amounts equivalent to the Company's
obligations under the Contract are held for all Participants, and for those
Participants during retirement who have annuitized.

VARIABLE ACCOUNT ANNUAL EXPENSE FEE- A charge made for various risks assumed by
the Company and for administration of the Variable Account. The maximum charge
cannot exceed an amount equal to 0.95% on an annual basis of the average net
assets.



<PAGE>   10



<TABLE>
<CAPTION>
                                TABLE OF CONTENTS
<S>                                                                                                            <C>
GLOSSARY OF TERMS...............................................................................................3
SUMMARY OF CONTRACT EXPENSES....................................................................................6
UNDERLYING MUTUAL FUND ANNUAL EXPENSES..........................................................................7
SYNOPSIS.......................................................................................................12
CONDENSED FINANCIAL INFORMATION................................................................................13
NATIONWIDE LIFE INSURANCE COMPANY..............................................................................16
NATIONWIDE ADVISORY SERVICES, INC..............................................................................16
THE VARIABLE ACCOUNT...........................................................................................16
         Voting Rights.........................................................................................17
PERIODIC REPORTS...............................................................................................17
VARIABLE ACCOUNT CHARGES AND OTHER DEDUCTIONS..................................................................17
         Contingent Deferred Sales Charge......................................................................17
         Participant Account Maintenance Charge................................................................18
         Variable Account Annual Expense Fee...................................................................19
         Premium Taxes and Other Expenses......................................................................19
         Experience Credits....................................................................................19
DESCRIPTION OF THE CONTRACTS...................................................................................20
         Purpose of the Contracts..............................................................................20
         Modification of the Contract..........................................................................20
         Contract Rights and Privileges and Assignments........................................................20
         Exchange Privilege....................................................................................20
         Suspension and Termination............................................................................21
         Application of Purchase Payments......................................................................21
         Additional Purchase Payment Prior to Commencement of Annuity Payments.................................22
         Crediting Accumulation Units..........................................................................22
         Variable Account Accumulation Unit Value..............................................................22
         Allocation of Purchase Payments.......................................................................22
         Valuation of an Account...............................................................................22
         Redemption of Participant Accounts....................................................................23
DISTRIBUTION OF PARTICIPANT ACCOUNTS (RETIREMENT PERIOD).......................................................23
         Retirement Income Payments............................................................................23
         Election of Income Form and Date......................................................................24
         Allocation of Retirement Income.......................................................................24
         Fixed Dollar Annuity..................................................................................24
         Minimum Payment.......................................................................................24
         Death Benefit Before Retirement.......................................................................24
         Optional Retirement Income Forms......................................................................24
         Death of Retired Participant..........................................................................25
         Withdrawal............................................................................................25
         Frequency of Payment..................................................................................25
         Determination of Payments Under Options A1 and A2.....................................................25
         Determination of Payments Under Options B1 and B2.....................................................25
         Determination of Amount of Variable Monthly Payments for the First Year...............................25
         Determination of Amount of Variable Monthly Payments for the Second
           and Subsequent Years................................................................................26
         Alternate Assumed Investment Rate.....................................................................26
GENERAL INFORMATION............................................................................................26
         Substitution of Securities............................................................................26
         Performance Advertising...............................................................................27
         Contract Owner Inquiries..............................................................................28
         Net Investment Factor.................................................................................28
         Valuation of Assets...................................................................................28
         Federal Tax Status....................................................................................28
         Contracts Issued Under the New York Model Plan........................................................29
YEAR 2000 COMPLIANCE ISSUES....................................................................................29
LEGAL PROCEEDINGS..............................................................................................29
TABLE OF CONTENTS OF STATEMENT OF ADDITIONAL INFORMATION.......................................................30
APPENDIX.......................................................................................................31
</TABLE>

<PAGE>   11



                          SUMMARY OF CONTRACT EXPENSES

PARTICIPANT TRANSACTION EXPENSES
      Maximum Contingent Deferred Sales Charge("CDSC")(1)......    5%
      (as a percentage of Purchase Payments)

MAXIMUM PARTICIPANT ACCOUNT MAINTENANCE CHARGE(2)..............  $50

MAXIMUM VARIABLE ACCOUNT ANNUAL EXPENSE FEE(3)................. 0.95% per annum
(as a percentage of average net assets)


(1) For Contracts issued on or after the later of May 1, 1998 or the date on
    which state insurance authorities approve contractual modifications, a CDSC
    may be negotiated and assessed. The maximum CDSC percentage which may be
    assessed is the lesser of:

     (1) 5% of the total of all Purchase Payments received on behalf of the
     surrendering Participant or the withdrawing Contract Owner prior to the
     date of the request for surrender; or

     (2) 5% of the amount surrendered. 

     For Contracts issued prior to May 1, 1998 or prior to the date on which
     state insurance authorities approve contractual modifications, a maximum
     CDSC of 4% may be negotiated and assessed. The CDSC will be imposed only
     when applicable (see "Contingent Deferred Sales Charge").

(2) The Participant Account Maintenance Charge is subject to negotiation (see
    "Participant Account Maintenance Charge").

(3) The Variable Account Annual Expense Fee is subject to negotiation (see
    "Variable Account Annual Expense Fee"). The maximum fee does not include any
    expenses or premium taxes which may be imposed by the state in which the
    Contract is issued. The Variable Account Annual Expense Fee does not include
    deductions for management fees and other expenses made by the Underlying
    Mutual Funds (see "Underlying Mutual Fund Annual Expenses").





<PAGE>   12



                   UNDERLYING MUTUAL FUND ANNUAL EXPENSES(1)
                          (After Expense Reimbursement)
         (as a percentage of Underlying Mutual Fund average net assets)

<TABLE>
<CAPTION>
                                         =============================================================
                                                                                    Total Underlying
                                          Management        Other         12b-1        Mutual Fund
                                             Fees          Expenses        Fees      Annual Expenses
======================================== -------------------------------------------------------------
<S>                                          <C>             <C>          <C>             <C>  
American Century: Twentieth Century          1.00%           0.00%        0.00%           1.00%
Growth
- ------------------------------------------------------------------------------------------------------
American Century: Twentieth Century          1.00%          0.00%         0.00%           1.00%
Ultra
- ------------------------------------------------------------------------------------------------------
The Bond Fund of America(SM), Inc.           0.33%          0.10%         0.25%           0.68%
- ------------------------------------------------------------------------------------------------------
The Dreyfus Third Century Fund, Inc.         0.75%          0.28%         0.00%           1.03%
- ------------------------------------------------------------------------------------------------------
Evergreen Income and Growth Fund             0.98%          0.29%         0.00%           1.27%
- ------------------------------------------------------------------------------------------------------
Federated U.S. Government Securities:        0.39%          0.15%         0.00%           0.54%
2-5 Years - Institutional Shares
- ------------------------------------------------------------------------------------------------------
Fidelity Capital & Income Fund               0.59%          0.26%         0.00%           0.85%
- ------------------------------------------------------------------------------------------------------
Fidelity Contrafund                          0.48%          0.22%         0.00%           0.70%
- ------------------------------------------------------------------------------------------------------
Fidelity Equity-Income Fund                  0.47%          0.23%         0.00%           0.70%
- ------------------------------------------------------------------------------------------------------
Fidelity Magellan(R)Fund                     0.45%          0.21%         0.00%           0.66%
- ------------------------------------------------------------------------------------------------------
Fidelity OTC Portfolio                       0.56%          0.29%         0.00%           0.85%
- ------------------------------------------------------------------------------------------------------
Fidelity Puritan Fund                        0.45%          0.22%         0.00%           0.67%
- ------------------------------------------------------------------------------------------------------
The Investment Company of America(R)         0.25%          0.08%         0.23%           0.56%
- ------------------------------------------------------------------------------------------------------
MAS Funds Fixed Income Portfolio             0.37%          0.11%         0.00%           0.48%
- ------------------------------------------------------------------------------------------------------
Massachusetts Investors Growth Stock         0.30%          0.21%         0.21%           0.72%
Fund - Class A
- ------------------------------------------------------------------------------------------------------
MFS(R)Growth Opportunities Fund-Class A      0.42%          0.26%         0.16%           0.84%
- ------------------------------------------------------------------------------------------------------
MFS(R)High Income Fund-Class A               0.48%          0.28%         0.30%           1.06%
- ------------------------------------------------------------------------------------------------------
Nationwide(R)Fund                            0.50%          0.10%         0.00%           0.60%
- ------------------------------------------------------------------------------------------------------
Nationwide(R)Growth Fund                     0.50%          0.14%         0.00%           0.64%
- ------------------------------------------------------------------------------------------------------
Nationwide(R)Money Market Fund               0.45%          0.14%         0.00%           0.59%
- ------------------------------------------------------------------------------------------------------
Nationwide Separate Account Trust -          1.00%          0.11%         0.00%           1.11%
Nationwide Small Company Fund
- ------------------------------------------------------------------------------------------------------
NPMP - The Aggressive Portfolio              0.50%          0.00%         0.00%           0.50%
- ------------------------------------------------------------------------------------------------------
NPMP - The Conservative Portfolio            0.50%          0.00%         0.00%           0.50%
- ------------------------------------------------------------------------------------------------------
NPMP - The Moderate Portfolio                0.50%          0.00%         0.00%           0.50%
- ------------------------------------------------------------------------------------------------------
NPMP - The Moderately Aggressive             0.50%          0.00%         0.00%           0.50%
Portfolio
- ------------------------------------------------------------------------------------------------------
NPMP - The Moderately Conservative           0.50%          0.00%         0.00%           0.50%
Portfolio
- ------------------------------------------------------------------------------------------------------
Neuberger & Berman Guardian Fund,            0.70%          0.10%         0.00%           0.80%
Inc.
- ------------------------------------------------------------------------------------------------------
Putnam Investors Fund-Class A                0.56%          0.19%         0.25%           1.00%
- ------------------------------------------------------------------------------------------------------
Putnam Voyager Fund -Class A                 0.49%          0.28%         0.25%           1.02%
- ------------------------------------------------------------------------------------------------------
SEI Index Funds - S & P 500 Index            0.19%          0.06%         0.00%           0.25%
Portfolio
- ------------------------------------------------------------------------------------------------------
Seligman Growth Fund, Inc.-Class A           0.70%          0.23%         0.23%           1.16%
- ------------------------------------------------------------------------------------------------------
Short-Term Investments  Trust-Treasury
Portfolio - Institutional Class              0.09%          0.00%         0.00%           0.09%
- ------------------------------------------------------------------------------------------------------
T. Rowe Price International Stock Fund(R)    0.67%          0.18%         0.00%           0.85%
- ------------------------------------------------------------------------------------------------------
Templeton Foreign Fund  - Class I            0.61%          0.22%         0.25%           1.08%
- ------------------------------------------------------------------------------------------------------
</TABLE>

(1) The Underlying Mutual Fund expenses shown above are assessed at the
    Underlying Mutual Fund level and are not direct charges against Variable
    Account assets or Contract Value. These Underlying Mutual Fund expenses are
    taken into consideration in computing each Underlying Mutual Fund's Net
    Asset Value, which is the share price used to calculate the Variable
    Account's unit value. There are no front-end load fees (sales charges) at
    the Underlying Mutual Fund level.



<PAGE>   13



The following funds are subject to fee waivers or expense reimbursement
arrangements:

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------
                        FUND                                             EXPENSES WITHOUT
                                                                     REIMBURSEMENT OR WAIVER
- ------------------------------------------------------------------------------------------------------------
<S>                                                    <C>  
Federated U.S. Government Securities Fund: 2-5 Years   Absent the waiver of fees by the Fund's investment
- - Institutional Shares                                 advisor, Management Fees, Other Expenses, and Total
                                                       Portfolio Expenses would have been 0.40%, 0.40% and
                                                       0.80% of average net assets, respectively.
- ------------------------------------------------------------------------------------------------------------
Nationwide(R) Money Market Fund                        Absent the waiver of fees by the Fund's investment
                                                       advisor, Management Fees, Other Expenses, and Total 
                                                       Portfolio Expenses would have been 0.50%, 0.14% and
                                                       0.64%, of average net assets, respectively.
- ------------------------------------------------------------------------------------------------------------
SEI Index Funds - S & P 500 Index Portfolio            Absent the waiver of fees by the Fund's investment
                                                       advisor, Management Fees, Other Expenses, and Total
                                                       Portfolio Expenses would have been 0.25%, 0.30% and
                                                       0.55%, of average net assets, respectively.
- ------------------------------------------------------------------------------------------------------------
Short-Term Investments Trust - Treasury Portfolio -    Absent the waiver of fees by the Fund's investment
Institutional Class                                    advisor, Management Fees, Other Expenses, and Total
                                                       Portfolio Expenses would have been 0.14%, 0.00% and
                                                       0.14%, of average net assets, respectively.
- ------------------------------------------------------------------------------------------------------------
</TABLE>


The information relating to the Underlying Mutual Fund expenses was provided by
the Underlying Mutual Fund and was not independently verified by the Company.







<PAGE>   14


                                     EXAMPLE

The following chart depicts the dollar amount of expenses that would be incurred
under the Contract assuming a maximum Variable Account annual expense rate of
0.95% of average account value, a $1,000 initial Purchase Payment and 5% annual
return on assets.

<TABLE>
<CAPTION>
                                                                 ----------------------------------------------------
                                                                           If you surrender your Contract
                                                                            at the end of the applicable
                                                                                     time period
- ---------------------------------------------------------------------------------------------------------------------
                                                                    1 Yr.        3 Yrs.       5 Yrs.       10 Yrs.
=====================================================================================================================
<S>                                                                  <C>          <C>           <C>          <C>
American Century: Twentieth Century Growth                           70           113           159          284
- ---------------------------------------------------------------------------------------------------------------------
American Century: Twentieth Century Ultra                            70           113           159          284
- ---------------------------------------------------------------------------------------------------------------------
The Bond Fund of America (SM), Inc.                                  67           103           141          249
- ---------------------------------------------------------------------------------------------------------------------
The  Dreyfus Third Century Fund, Inc.                                71           114           160          287
- ---------------------------------------------------------------------------------------------------------------------
Evergreen Income and Growth Fund                                     73           122           173          313
- ---------------------------------------------------------------------------------------------------------------------
Federated U.S. Government Securities Fund: 2-5 years -               66            99           134          233
Institutional Shares
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Capital & Income Fund                                       69           108           151          268
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Contrafund                                                  67           104           142          251
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Equity-Income Fund                                          67           104           142          251
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Magellan(R)Fund                                             67           102           140          247
- ---------------------------------------------------------------------------------------------------------------------
Fidelity OTC Portfolio                                               69           108           151          268
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Puritan Fund                                                67           103           141          248
- ---------------------------------------------------------------------------------------------------------------------
The Investment Company of America(R)                                 66            99           135          235
- ---------------------------------------------------------------------------------------------------------------------
MAS Funds Fixed Income Portfolio                                     65            97           131          226
- ---------------------------------------------------------------------------------------------------------------------
MFS Growth Opportunities Fund                                        69           108           150          267
- ---------------------------------------------------------------------------------------------------------------------
MFS High Income Fund                                                 71           115           162          291
- ---------------------------------------------------------------------------------------------------------------------
Massachusetts Investors Growth Stock Fund - Class A                  68           104           144          253
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R) Fund                                                   66           100           137          240
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R) Growth Fund                                            67           102           139          244
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R)Money Market Fund                                       66           100           137          239
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Separate Account Trust - Nationwide Small Company         72           117           164          296
Fund
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Aggressive Portfolio                                      65            97           132          228
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Conservative Portfolio                                    65            97           132          228
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderate Portfolio                                        65            97           132          228
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderately Aggressive Portfolio                           65            97           132          228
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderately Conservative Portfolio                         65            97           132          228
- ---------------------------------------------------------------------------------------------------------------------
Neuberger & Berman Guardian Fund, Inc.                               68           107           148          262
- ---------------------------------------------------------------------------------------------------------------------
Putnam  Investors Fund-Class A                                       70           113           159          284
- ---------------------------------------------------------------------------------------------------------------------
Putnam Voyager Fund-Class A                                          71           114           160          286
- ---------------------------------------------------------------------------------------------------------------------
SEI Index Funds - S & P 500 Index Portfolio                          63            89           118          199
- ---------------------------------------------------------------------------------------------------------------------
Seligman Growth Fund, Inc.-Class A                                   72           118           167          301
- ---------------------------------------------------------------------------------------------------------------------
Short-Term Investments Trust - Treasury Portfolio -                  61            84           109          181
Institutional Class
- ---------------------------------------------------------------------------------------------------------------------
T. Rowe Price International Stock Fund(R)                            69           108           151          268
- ---------------------------------------------------------------------------------------------------------------------
Templeton Foreign Fund - Class I                                     71           116           163          293
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

This Example should not be considered a representation of past or future
expenses. Actual expenses may be greater or lesser than those shown.





<PAGE>   15


                               EXAMPLE (CONTINUED)

The following chart depicts the dollar amount of expenses that would be incurred
under the Contract assuming a maximum Variable Account annual expense rate of
0.95% of average account value, a $1,000 initial Purchase Payment and 5% annual
return on assets.


<TABLE>
<CAPTION>
                                                                ----------------------------------------------------
                                                                        If you do not surrender your Contract
                                                                            at the end of the applicable
                                                                                     time period
- ---------------------------------------------------------------------------------------------------------------------
                                                                    1 Yr.        3 Yrs.       5 Yrs.       10 Yrs.
=====================================================================================================================
<S>                                                                  <C>           <C>          <C>          <C>
American Century: Twentieth Century Growth                           20            63           109          234
- ---------------------------------------------------------------------------------------------------------------------
American Century: Twentieth Century Ultra                            20            63           109          234
- ---------------------------------------------------------------------------------------------------------------------
The Bond Fund of America(SM), Inc.                                   17            53            91          199
- ---------------------------------------------------------------------------------------------------------------------
The  Dreyfus Third Century Fund, Inc.                                21            64           110          237
- ---------------------------------------------------------------------------------------------------------------------
Evergreen Income and Growth Fund                                     23            72           123          263
- ---------------------------------------------------------------------------------------------------------------------
Federated U.S. Government Securities Fund: 2-5 years-                16            49            84          183
Institutional Shares
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Capital & Income Fund                                       19            58           101          218
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Contrafund                                                  17            54            92          201
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Equity-Income Fund                                          17            54            92          201
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Magellan(R)Fund                                             17            52            90          197
- ---------------------------------------------------------------------------------------------------------------------
Fidelity OTC Portfolio                                               19            58           101          218
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Puritan Fund                                                17            53            91          198
- ---------------------------------------------------------------------------------------------------------------------
The Investment Company of America(R)                                 16            49            85          185
- ---------------------------------------------------------------------------------------------------------------------
MAS Funds Fixed Income Portfolio                                     15            47            81          176
- ---------------------------------------------------------------------------------------------------------------------
MFS(R)Growth Opportunities Fund- Class A                             19            58           100          217
- ---------------------------------------------------------------------------------------------------------------------
MFS(R)High Income Fund-Class A                                       21            65           112          241
- ---------------------------------------------------------------------------------------------------------------------
Massachusetts Investors Growth Stock Fund - Class A                  18            54            94          203
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R)Fund                                                    16            50            87          190
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R)Growth Fund                                             17            52            89          194
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R)Money Market Fund                                       16            50            87          189
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Separate Account Trust - Nationwide Small Company         22            67           114          246
Fund
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Aggressive Portfolio                                      15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Conservative Portfolio                                    15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderate Portfolio                                        15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderately Aggressive Portfolio                           15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderately Conservative Portfolio                         15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
Neuberger & Berman Guardian Fund, Inc.                               18            57            98          212
- ---------------------------------------------------------------------------------------------------------------------
Putnam  Investors Fund-Class A                                       20            63           109          234
- ---------------------------------------------------------------------------------------------------------------------
Putnam Voyager Fund-Class A                                          21            64           110          236
- ---------------------------------------------------------------------------------------------------------------------
SEI Index Funds - S & P 500 Index Portfolio                          13            39            68          149
- ---------------------------------------------------------------------------------------------------------------------
Seligman Growth Fund, Inc.-Class A                                   22            68           117          251
- ---------------------------------------------------------------------------------------------------------------------
Short-Term Investments Trust - Treasury Portfolio -                  11            34            59          131
Institutional Class
- ---------------------------------------------------------------------------------------------------------------------
T. Rowe Price International Stock Fund(R)                            19            58           101          218
- ---------------------------------------------------------------------------------------------------------------------
Templeton Foreign Fund - Class I                                     21            66           113          243
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

This Example should not be considered a representation of past or future
expenses. Actual expenses may be greater or lesser than those shown.



<PAGE>   16


                               EXAMPLE (CONTINUED)

The following chart depicts the dollar amount of expenses that would be incurred
under the Contract assuming a maximum Variable Account annual expense rate of
0.95% of average account value, a $1,000 initial Purchase Payment and 5% annual
return on assets.


<TABLE>
<CAPTION>
                                                                 ----------------------------------------------------
                                                                           If you annuitize your Contract
                                                                      at the end of the applicable time period
=====================================================================================================================
<S>                                                                  <C>           <C>          <C>          <C>
                                                                    1 Yr.        3 Yrs.       5 Yrs.       10 Yrs.
- ---------------------------------------------------------------------------------------------------------------------
American Century: Twentieth Century Growth                           20            63           109          234
- ---------------------------------------------------------------------------------------------------------------------
American Century: Twentieth Century Ultra                            20            63           109          234
- ---------------------------------------------------------------------------------------------------------------------
The Bond Fund of America(SM), Inc.                                   17            53            91          199
- ---------------------------------------------------------------------------------------------------------------------
The Dreyfus Third Century Fund, Inc.                                 21            64           110          237
- ---------------------------------------------------------------------------------------------------------------------
Evergreen Income and Growth Fund                                     23            72           123          263
- ---------------------------------------------------------------------------------------------------------------------
Federated U.S. Government Securities Fund: 2-5 years -               16            49            84          183
Institutional Shares
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Capital & Income Fund                                       19            58           101          218
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Contrafund                                                  17            54            92          201
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Equity-Income Fund                                          17            54            92          201
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Magellan(R)Fund                                             17            52            90          197
- ---------------------------------------------------------------------------------------------------------------------
Fidelity OTC Portfolio                                               19            58           101          218
- ---------------------------------------------------------------------------------------------------------------------
Fidelity Puritan Fund                                                17            53            91          198
- ---------------------------------------------------------------------------------------------------------------------
The Investment Company of America(R)                                 16            49            85          185
- ---------------------------------------------------------------------------------------------------------------------
MAS Funds Fixed Income Portfolio                                     15            47            81          176
- ---------------------------------------------------------------------------------------------------------------------
MFS(R)Growth Opportunities Fund- Class A                             19            58           100          217
- ---------------------------------------------------------------------------------------------------------------------
MFS(R)High Income Fund-Class A                                       21            65           112          241
- ---------------------------------------------------------------------------------------------------------------------
Massachusetts Investors Growth Stock Fund - Class A                  18            54            94          203
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R)Fund                                                    16            50            87          190
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R)Growth Fund                                             17            52            89          194
- ---------------------------------------------------------------------------------------------------------------------
Nationwide(R)Money Market Fund                                       16            50            87          189
- ---------------------------------------------------------------------------------------------------------------------
Nationwide Separate Account Trust - Nationwide Small Company         22            67           114          246
Fund
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Aggressive Portfolio                                      15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Conservative Portfolio                                    15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderate Portfolio                                        15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderately Aggressive Portfolio                           15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
NPMP - The Moderately Conservative Portfolio                         15            47            82          178
- ---------------------------------------------------------------------------------------------------------------------
Neuberger & Berman Guardian Fund, Inc.                               18            57            98          212
- ---------------------------------------------------------------------------------------------------------------------
Putnam  Investors Fund-Class A                                       20            63           109          234
- ---------------------------------------------------------------------------------------------------------------------
Putnam Voyager Fund-Class A                                          21            64           110          236
- ---------------------------------------------------------------------------------------------------------------------
SEI Index Funds - S & P 500 Index Portfolio                          13            39            68          149
- ---------------------------------------------------------------------------------------------------------------------
Seligman Growth Fund, Inc.-Class A                                   22            68           117          251
- ---------------------------------------------------------------------------------------------------------------------
Short-Term Investments Trust - Treasury Portfolio -                  11            34            59          131
Institutional Class
- ---------------------------------------------------------------------------------------------------------------------
T. Rowe Price International Stock Fund(R)                            19            58           101          218
- ---------------------------------------------------------------------------------------------------------------------
Templeton Foreign Fund - Class I                                     21            66           113          243
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

This Example should not be considered a representation of past or future
expenses. Actual expenses may be greater or lesser than those shown.

The purpose of the Summary of Contract Expenses and Example is to assist the
Participant in understanding the various costs and expenses that a Participant
will bear directly or indirectly when investing in the Contract. The Tables
reflect expenses of the Variable Account as well as the Underlying Mutual Fund
investment options. For a more detailed explanation of these expenses, see
"Variable Account Charges, Purchase Payments, and Other Deductions."





<PAGE>   17

For more and complete information regarding expenses paid out of the assets of a
particular Underlying Mutual Fund, see the Underlying Mutual Fund's prospectus.
In addition to the expenses shown above, deductions for premium taxes may also
be applicable, depending upon the jurisdiction in which the Contract is sold
(see "Premium Taxes").

                                    SYNOPSIS

The Contracts described in this prospectus are designed for use in connection
with deferred compensation Plans adopted by Member Counties under the NACo
Program. The Plans qualify for favorable tax treatment under Section 457 of the
Code. The Participants generally are not subject to federal income tax on
amounts deferred under such plans until Distributions are received from the
Plan. Purchase Payments made at any time by or on behalf of any Participant must
be at least $20 per month.

Purchase Payments under the Contracts are placed in the Variable Account. The
Variable Account is a unit investment trust with Sub-Accounts having distinct
unit values, each reflecting investment results of a different Underlying Mutual
Fund. Amounts equivalent to the obligations of the Company under each
Sub-Account will be invested in the specified Underlying Mutual Fund (see
"Appendix of Participating Funds").

The Company does not deduct a sales charge from Purchase Payments made for these
Contracts. However, if any part of the Contract is withdrawn, the Company will,
with certain exceptions, deduct from the Contract Value, a Contingent Deferred
Sales Charge ("CDSC") equal to not more than 5% of the lesser of the total of
all Purchase Payments made prior to the date of the request for surrender, or
the amount surrendered. This charge, when applicable, is imposed to permit the
Company to recover sales expenses which have been advanced by the Company (see
"Contingent Deferred Sales Charge").

Under certain Contracts, the Company may assess a Participant Account
Maintenance Charge. Under no circumstances will a Participant Account
Maintenance Charge be assessed unless the charge is specifically negotiated and
agreed upon by the Contract Owner and the Company. The maximum amount which may
be assessed is $50 (see "Participant Account Maintenance Charge").

A Variable Account Annual Expense Fee is assessed in connection with the
Company's contractual promise to accept various risks and for administration
expenses associated with the issuance of the Contracts. This fee is subject to
negotiation and may vary from one Plan to another reflecting the unique
characteristics of different Plans when considered as a whole. This charge is
calculated as a percentage of assets and is deducted on each Valuation Date from
amounts held in the Variable Account. The maximum fee which may be assessed by
the Company is 0.95% per annum of the average net assets (see "Variable Account
Annual Expense Fee"). In addition, the Underlying Mutual Funds make certain
deductions from their assets (see "Underlying Mutual Fund Annual Expenses").

The CDSC, Participant Account Maintenance Charge and Variable Account Expense
Fee, when negotiated, may be decreased upon notice to the Contract Owner (see
"Modification of the Contract").

Taxation of the Contracts will depend on the type of Contract issued (see
"Federal Tax Status"). Any applicable premium taxes will be charged against the
Contracts. If any premium taxes are payable at the time Purchase Payments are
made, the premium tax deduction will be made prior to allocation to any
Underlying Mutual Fund (see "Premium Taxes").




<PAGE>   18


                        CONDENSED FINANCIAL INFORMATION

The value of an Accumulation Unit is determined on the basis of changes in the
per share value of the Underlying Mutual Funds and the assessment of a Variable
Account Annual Expense Fee (for more information on the calculation of
Accumulation Unit values, see "Variable Account Accumulation Unit Value" and
"Net Investment Factor"). Please refer to Appendix B for information regarding
each class of Accumulation Units.


                        NATIONWIDE LIFE INSURANCE COMPANY

The Company is a stock life insurance company organized under the laws of the
State of Ohio in March, 1929. The Company is a member of the "Nationwide
Insurance Enterprise", with its Home Office at One Nationwide Plaza, Columbus,
Ohio 43215. The Company offers a complete line of life insurance, annuities and
retirement products. It is admitted to do business in all states, the District
of Columbia, the Virgin Islands, and Puerto Rico.

                       NATIONWIDE ADVISORY SERVICES, INC.

The Contracts are distributed by the General Distributor, Nationwide Advisory
Services, Inc. ("NAS"), Three Nationwide Plaza, Columbus, Ohio 43215. NAS is a
wholly owned subsidiary of Nationwide Life Insurance Company.

                              THE VARIABLE ACCOUNT

The Variable Account was established by the Company on September 7, 1988
pursuant Ohio law. The Variable Account has been registered with the SEC as a
unit investment trust pursuant to the provisions of the Investment Company Act
of 1940 ("1940 Act"). Such registration does not involve supervision of the
management of the Variable Account or the Company by the SEC.

The net Purchase Payments applied to the Variable Account are invested in shares
of the Underlying Mutual Funds available under the terms of the Contract. The
Variable Account is divided into Sub-Accounts of Accumulation Units, each of
which represents a separate Underlying Mutual Fund (see "Appendix -
Participating Funds" for a description of the investment objective of each
Underlying Mutual Fund).

Each Sub-Account is administered and accounted for as a part of the separate
account, but the income, capital gains or losses of each Sub-Account are
credited to or charged against the assets held for that Sub-Account in
accordance with the terms of each Contract, without regard to other income,
capital gains or losses of any other Sub-Account, or arising out of any other
business the Company may conduct. The assets within each Sub-Account are not
chargeable with liabilities arising out of the business conducted by any other
Sub-Account, nor will the Variable Account as a whole be chargeable with
liabilities arising out of any other business the Company may conduct.


<PAGE>   19


VOTING RIGHTS

The Variable Account will be owner of record of all Underlying Mutual Fund
shares purchased by the respective account until such Underlying Mutual Fund
shares are sold, but all securities will be held for the benefit of the Contract
Owners. In accordance with its view of applicable law, the Company will vote the
shares of the Underlying Mutual Funds held in the Variable Account at regular
and special meetings of the shareholders. The shares will be voted in accordance
with instructions received from Contract Owners. The Company or its designee
will mail to each Contract Owner at its last known address all periodic reports
and proxy material of the applicable Underlying Mutual Fund, and a form with
which to give voting instructions. Any Underlying Mutual Fund shares as to which
no timely instructions are received will be voted by the Company in the same
proportion as the instructions received from all persons furnishing timely
instructions. A Contract Owner's voting rights may decrease with the
cancellation of Accumulation Units to make annuity payments.

                                PERIODIC REPORTS

The Company or its designee will, semi-annually, provide to each Participant, a
Statement of Assets, Liabilities and Contract Owners' Equity and a Statement of
Operations and Changes in Contract Owners' Equity of the Variable Account. Each
Participant and Retired Participant will also be informed, periodically, of the
number of Accumulation Units credited to his or her account, as well as the
total account value.

The current prospectus of the Variable Account will be made available to
Participants through the Contract Owner. The Contract Owner may, under the terms
of the Plan, have an obligation to furnish additional information to
Participants, such as a notice of any changes in the Plan or tax status of the
Plan and the financial condition of the Contract Owner as it relates to
obligations under the Plan.

                  VARIABLE ACCOUNT CHARGES AND OTHER DEDUCTIONS

Charges associated with Contracts described in this prospectus may vary from one
Plan to another, depending on the nature of the Plan and the particular needs
and preferences of Contract Owners. Generally, all charges are negotiable; this
allows the Company and Contract Owners flexibility in "custom designing" a
charge structure that is consistent with the expectations and preferences of
Contract Owners, as well as the expenses (which will vary from Plan to Plan) and
profitability aims of the Company.

With respect to any existing Contract which may be re-negotiated, however, the
Company will not negotiate for, nor impose aggregate Contract charges greater
than those in effect prior to re-negotiation. In other words, charges under any
existing Contract which is re-negotiated may be lowered, but under no
circumstances will they be raised.

CONTINGENT DEFERRED SALES CHARGE ("CDSC")

No deduction for a sales charge is made from the Purchase Payments for these
Contracts. However the CDSC, when it is applicable, will be used to cover
expenses relating to the sale of the Contracts, including compensation paid to
sales personnel, the costs of preparation of sales literature, and other
promotional activity. The Company attempts to recover its distribution costs
relating to the sale of the Contracts from a CDSC. Any shortfall will be borne
by the Company, which may indirectly include portions of the Variable Account
Annual Expense Fee, since the Company intends to generate a profit from this
fee.

If the Contract Owner terminates the Contract in accordance with the section
entitled "Suspension and Termination", and directs the Company to withdraw all
or part of the Contract Value, the Company will assess a CDSC against the amount
withdrawn by deducting an amount from each Participant's Account as indicated
below. For purposes of the CDSC, withdrawals under a Contract come first from
the Purchase Payments which have been on deposit under the Contract for the
longest time period.





<PAGE>   20
The following CDSC schedule applies to Contracts issued beginning July 1, 1985
and prior to the later of May 1, 1998 or the date on which insurance
authorities approve contractual modifications.

                                             Number of Completed Years of
                                                    Participation
                CDSC Percentage                (Beginning July 1, 1985)

                      4%                             1 through 12

                      3%                                  13

                      2%                                  14

                      1%                                  15

                      0%                             16 and after

Years of participation credited toward the CDSC schedule as set forth above may
only be those earned beginning with the date of a Participant's first deferral
deposited in the Contract.

Notwithstanding the above, the CDSC will not apply to any withdrawals made on or
after January 1, 2001.

When a CDSC of less than 4% is negotiated and assessed, the reduced charge may
reflect actual variations in expenses, usually resulting from reduced marketing
expenses.

No CDSC will be imposed on Contract Value that is paid under:

          o   any life income payment option;

          o   designated period payment options of 5 or more years for a
              Participant who has a minimum of 5 Participant Account Years prior
              to the time the benefit payments are to commence; and

          o   a one-sum or periodic payment payable because of a Participant's
              death.

For Contracts issued on or after the later of May 1, 1998 or the date on which
state insurance authorities approve contractual modifications, a CDSC may be
negotiated and assessed. The maximum CDSC percentage which may be assessed is
the lesser of:

    (1) 5% of the total of all Purchase Payments received on behalf of the
        surrendering Participant or the withdrawing Contract Owner prior to the
        date of the request for surrender; or

    (2) 5% of the amount surrendered.

The cumulative sum of all such charges, per Participant, shall never exceed 5%
(or such lesser percentage, if applicable) of the total Purchase Payments made
on behalf of such Participant for the 16 years prior to the date the surrender
is requested.

When a CDSC of less than 5% is negotiated and assessed, the reduced charge may
reflect actual variations in expenses, usually resulting from reduced marketing
expenses.

PARTICIPANT ACCOUNT MAINTENANCE CHARGE

A Participant Account Maintenance Charge, if assessed, will help the Company to
offset administrative expenses, and the charge will not exceed the Company's
actual administrative expenses under the Contracts.

The Company will not assess the Participant Account Maintenance Charge unless
the charge is negotiated and contractually agreed upon between the Contract
Owner and the Company. Generally, Contract Owners negotiating for a Participant
Account Maintenance Charge, or a higher Participant Account Maintenance Charge,
will do so with the expectation of having the Company lower other fees
associated with the Contract. Conversely, the absence of a Participant Account
Maintenance Charge may be expected to increase other charges. The maximum amount
which may be assessed is $50. If a Participant Account Maintenance Charge is
negotiated, the Company will assess each Participant Account the negotiated
amount at the beginning of each Participant Account Year for the preceding
Participant Account Year, during both the accumulation and annuity periods.


<PAGE>   21



The Company will assess the Participant Account Maintenance Charge on the date
(other than a Participant Anniversary) that amounts held in respect of a
Participant are fully withdrawn from the Variable Account. In such case, the
amount of the Participant Account Maintenance Charge will be 1/12 of the
applicable Participant Account Maintenance Charge, multiplied by the number of
whole or partial calendar months which have elapsed between the Participant
Anniversary (or the Participant Effective Date during the first Participant
Account Year) and the date of full withdrawal.

The Participant Account Maintenance Charge is made by canceling a number of
Accumulation Units at the beginning of each Participant Account Year during both
the accumulation and annuity periods, equal in value to the applicable
Participant Account Maintenance Charge. If a Participant Account includes more
than one Sub-Account, the deduction will be allocated among Sub-Accounts on the
basis of relative values at the time deduction is made.

For those Plans which provide this Contract and certain other investment options
(such as the Company's Group Fixed Fund Retirement Contract), the Participant
Account Maintenance Charge under this Contract may be reduced so that the total
of the Participant Account Maintenance Charges and any similar administrative
charges imposed under other investment options available under the Plan shall
not exceed the Participant Account Maintenance Charge assessed under this
Contract. In this event, such charge will be allocated among Sub-Accounts and
amounts held in such other investment options available under the Plan on the
basis of the relative values of the Participant's Accounts at the time the
deduction is made.

THE PARTICIPANT ACCOUNT MAINTENANCE CHARGE WILL NOT BE ASSESSED UNLESS
NEGOTIATED BETWEEN THE CONTRACT OWNER AND THE COMPANY.

VARIABLE ACCOUNT ANNUAL EXPENSE FEE ("VARIABLE ACCOUNT FEE")

Under the terms of the Contracts, the Company assumes various risks and incurs
administrative expenses associated with the issuance of the Contracts. For the
Company's contractual promise to accept these risks and expenses, the Contracts
provide for the deduction of a Variable Account Fee, which is calculated as a
percentage of assets and is deducted on each Valuation Date from amounts held in
the Variable Account. On an annual basis, the maximum Variable Account Fee is
0.95% of the average account value.

As with all other charges, this fee is subject to negotiation and may vary from
one Plan to another reflecting the unique characteristics of different Plans
when considered as a whole. In negotiating the amount of the fee, the Company
may consider factors which may reduce expenses incurred by the Company. These
factors might include, but are not limited to: (1) the size of the Plan; (2) the
number of eligible employees; (3) the number of Plan Participants; (4)
demographics of Plan Participants; (5) general economic conditions; (6) the
varying costs associated with the inclusion of Underlying Mutual Fund options;
(7) the type of Contract issued (for example, whether the Contract is issued as
an Allocated Contract or Unallocated Contract); (8) costs associated with
distribution of the Contract; and (9) any other factors which the Company deems
relevant.

PREMIUM TAXES AND OTHER EXPENSES

The Company will charge against Purchase Payments or the Contract Value the
amount of any premium taxes levied by a state or any other governmental entity
upon Purchase Payments received by the Company. Premium tax rates currently
range from 0% to 3.5% per annum. This range is subject to change. The method
used to recoup premium tax expenses will be determined by the Company at its
sole discretion and in compliance with state law.

There are deductions and expenses paid out of the assets of the Underlying
Mutual Funds (see "Underlying Mutual Fund Annual Expenses") that are more fully
described in the prospectus for the Underlying Mutual Funds.

EXPERIENCE CREDITS

The Contracts may either be participating or non-participating, depending on the
state of issue. A participating Contract provides the right to participate in
the distribution of surplus of the Company. In the event that the Participant
Account Maintenance Charge and the Variable Account Annual Expense Fee collected
under this Contract accrue to the Company in excess of an amount deemed
necessary at the sole discretion of the Company's Board of Directors, such
excess may be allocated to the Contract by purchasing additional Accumulation
Units and crediting such additional units to the Participant Accounts. There
have not been any such experience credits to date. The Company cannot offer any
assurance that there will be experience credits on participating Contracts in
the future. With respect to nonparticipating Contracts, there is no right to
participate in the distribution of surplus.




<PAGE>   22

                          DESCRIPTION OF THE CONTRACTS

PURPOSE OF THE CONTRACTS

The Contracts described in this prospectus are Group Flexible Fund Retirement
Contracts designed to fund Plans adopted by Member Counties under the NACo
Program established under Section 457 of the Code. A single group Contract is
issued to the Contract Owner, covering all present and future participating
employees. The Company will issue a certificate to the Contract Owner for
delivery to each Retired Participant or other person for whom an Optional
Retirement Income Form is purchased, setting forth in substance the benefits to
which such person is entitled. In addition, if any applicable law requires, the
Company will issue a descriptive certificate to the Contract Owner for delivery
to any such person required by law to receive such certificate, setting forth in
substance the benefits to which such person is entitled. For purposes of
determining benefits payable under the Plan, an individual accumulation account
is established for each Participant. The frequency of Purchase Payments is
normally monthly, but may be adjusted to fit the payroll practices of the
Contract Owner. Purchase Payments made at any time by or on behalf of any
Participant must be at least $20 per month.

The basic objectives of the Contracts are to provide each Participant with an
initial Retirement Income Payment, which will tend to reflect the changes which
have occurred in the cost of living during pre-retirement years (without the
necessity of increased Purchase Payments to keep pace with any increase in the
cost of living which might occur during those years), and to provide subsequent
Retirement Income Payments which will tend to vary with the cost of living
changes during his or her retired lifetime. The Company seeks to accomplish
these objectives by applying purchase rates contained in the Contract to the
amounts accumulated through investment in Underlying Mutual Funds.
Notwithstanding the foregoing, there is no assurance that these objectives will
be attained. Historically, the value of a diversified portfolio of common stocks
held for an extended period of time has tended to rise during periods of
inflation. There has, however, been no exact correlation, and for some periods,
the prices of securities have declined while the cost of living was rising.

MODIFICATION OF THE CONTRACT

The CDSC, Participant Account Maintenance Charge and Variable Account Annual
Expense Fee, when negotiated, may be decreased upon notice to the Contract
Owner.

Other than as set forth above, the Company reserves the right to change all
other provisions of the Contract by giving notice to the Contract Owner not less
than 90 days before the effective date of the change.

CONTRACT RIGHTS AND PRIVILEGES AND ASSIGNMENTS

The Contract belongs to the Contract Owner provided, however, that under Code
Section 457 Plans, the Contract Owner must hold the Contract for the exclusive
benefit of the Plan's Participants and Beneficiaries. All contractual rights and
privileges may be exercised by the Contract Owner, subject to any rights
specifically reserved in the Plan for Participants as a group or as individuals.
With respect to 457 Plans, the Contract Owner may not take any action
inconsistent with the rights of such 457 Plan's Participants. The Contract may
not be assigned.

EXCHANGE PRIVILEGE

The Company will permit the Contract Owner, or the Participant if the Plan so
provides, to exchange amounts among the Sub-Accounts as frequently as permitted
by the Plan, subject to the limits and rules set by each Underlying Mutual Fund.
For those Contracts where the Contract Owner has elected an exchange privilege,
there will be no charge for exchanges among the Sub-Accounts.

The Company will also permit the Participant to make exchanges among the
Sub-Accounts by telephone and the internet, if forms are executed by the
Contract Owner agreeing with certain restrictions applicable to these
privileges. Telephone exchange requests and internet exchange requests must be
received by the Company by the close of the New York Stock Exchange in order to
receive that day's closing Sub-Account price. If the Participant is unable to
execute an exchange request by telephone or internet (for example, during times
of unusual market activity), the Participant might consider placing the exchange
order by mail. The Company will employ reasonable procedures to confirm that
instructions communicated by telephone and the internet are genuine. Such
procedures may include any or all of the following: requesting identifying
information, such as name, contract number, Social Security Number, and/or
personal identification number; tape recording all telephone transactions and
providing written confirmation thereof to the Contract Owner or Participant and
any agent of record at the last address of record; or other such procedures as
the Company may deem reasonable. Failure to follow reasonable procedures may
result




<PAGE>   23

in the Company's liability for any losses due to unauthorized or fraudulent
transfers. However, any losses incurred pursuant to actions taken by the Company
in reliance on telephone or internet instructions reasonably believed to be
genuine shall be borne by the Participant. The Company may withdraw the
telephone exchange privilege and the internet exchange privilege upon 30 days
written notice to Contract Owners and Participants.

On the date the Company receives an exchange request in good order, which
includes all of the information necessary for processing the request, the
Company will transfer the amount to be converted. Such transfers will be based
on the Accumulation Unit values of the affected Sub-Accounts if received at the
Home Office by the close of the New York Stock Exchange on a day on which the
New York Stock Exchange is open for business. If the exchange request is
received after the close of the New York Stock Exchange, the transfer will be
based on the next business day on which the New York Stock Exchange is open.

For those Plans funded by this Contract and Nationwide's Group Fixed Fund
Retirement Contract, the Contract Owner, or the Participant if the Plan so
provides, may exchange Accumulation Units between any Sub-Account and the Group
Fixed Fund Retirement Contract. Exchanges from the deposit fund to any
Sub-Account will be subject to the limitations of the Group Fixed Fund
Retirement Contract. Exchanges will be effective when received in good order at
the Home Office.

SUSPENSION AND TERMINATION

The Contract may be suspended at the option of the Company on written notice to
the Contract Owner if: (a) the Contract Owner has failed to remit to the Company
any Purchase Payment specified in the Plan; or (b) if the Company does not
accept an amendment to the Plan, filed with the Company by the Contract Owner,
which in the Company's opinion would adversely affect its financial experience
with respect to the Contract. The Contract Owner may suspend the Contract upon
90 days written notice to the Company. Suspension of the Contract will become
effective as of the ninety-first (91st) day following receipt of written notice
by the Company. Suspension of the Contract will mean only that no further
Purchase Payments will be accepted by the Company except by mutual consent, and
all other terms of the Contract will continue to apply. After suspension of the
Contract has become effective, the Contract Owner may, upon 30 days written
notice, terminate the Contract. Termination of the Contract will become
effective as of the 31st day following receipt of written notice by the Company.
Upon termination of the Contract, the Company will pay to the Contract Owner the
redemption value, subject to applicable charges, plus the balance of the annual
premiums transferred from the Variable Account to the General Account for
payment of variable Retirement Income Payments under retirement Options B1 and
B2 (see "Optional Retirement Income Forms"). Payment of redemption values may be
suspended when redemption of Underlying Mutual Fund shares are suspended as
provided in the section entitled "Redemption of Participant Accounts." Payment
of any amounts under this section will be subject to any applicable CDSC (see
"Contingent Deferred Sales Charge"). Upon such termination by the Contract
Owner, payment of Contract Values will be subject to any applicable CDSC.

APPLICATION OF PURCHASE PAYMENTS

The Company will receive Purchase Payments from the Contract Owner in accordance
with the requirements of the Plan. Net Purchase Payments received on behalf of
Participants will be applied by the Company to purchase Accumulation Units of
Sub-Accounts in accordance with the instructions of the Contract Owner. Purchase
Payments made at any time by or on behalf of each Participant must be at least
$20 per month. Payments must be no less than monthly, unless agreed to by the
Company.

An initial Purchase Payment will be priced not later than 2 business days after
receipt of an order to purchase, if the application of the Participant and all
information necessary for processing the purchase order are complete. The
Company may retain the Purchase Payment for up to 5 business days while
attempting to complete an incomplete application. If the application cannot be
made complete within 5 business days, the Participant will be informed of the
reasons for the delay and the Purchase Payment will be returned immediately
unless the Participant consents to the Company retaining the Purchase Payment
until the application is made complete. Upon completion of such incomplete
application, the Purchase Payment will be priced within 2 business days.
Purchase Payments will not be priced on days when the New York Stock Exchange is
not open for business.

When permissible under state insurance law, the Company may credit up to 8% of
an Initial Transfer into the Contract. This credit will reimburse the Contract
Owner for any exit penalty associated with an investment product offered by a
provider other than the Company. The Company will recover this credit by
reducing service agent and/or broker compensation or through the negotiation of
an increased Participant Account Maintenance Charge or Variable Account Annual
Expense Fee.




<PAGE>   24



ADDITIONAL PURCHASE PAYMENT PRIOR TO COMMENCEMENT OF ANNUITY PAYMENTS

The Contract Owner will have the right to make one additional Purchase Payment
in respect to a Participant for the purpose of increasing Retirement Income
Payments. Notice of such payment shall be given to the Company at the time the
notice to distribute is given, and such additional Purchase Payment must be made
no later than the last business day prior to the date upon which Retirement
Income Payments are to commence. Any such additional Purchase Payment will be
subject to any applicable premium taxes. The annuity rates provided under this
Contract at the time of issue will be applicable to the entire value, including
any such additional Purchase Payment of such account which does not exceed five
times the Purchase Payment allocated to such account prior to the date notice to
distribute is given. Any excess amount may be applied at annuity rates then
offered by the Company for contracts of the same type as this Contract.

CREDITING ACCUMULATION UNITS

When a Purchase Payment is received by the Company, the net Purchase Payment for
each Sub-Account is applied separately to provide Accumulation Units which are
credited to a Participant Account in accordance with the instructions of the
Contract Owner. The number of Accumulation Units (calculated daily) credited to
each Participant Account for each Sub-Account is determined by dividing the net
Purchase Payment allocated to that Sub-Account for that Participant by the value
of the Accumulation Unit for that Sub-Account next computed following receipt of
the Purchase Payment by the Company. The net Purchase Payment for each
Participant is the total Purchase Payment for that Participant less any taxes
then payable.

VARIABLE ACCOUNT ACCUMULATION UNIT VALUE

The value of an Accumulation Unit for each Sub-Account was established at a
value equal to the accumulation unit value of the corresponding Sub-Account on
January 2, 1990. The Variable Account is a segregated investment account of the
Company in which Member Counties hold Contracts. The value of an Accumulation
Unit for each new Sub-Account added to the Variable Account after January 2,
1990, will be established at $1.00 as of the date Underlying Mutual Fund shares
are available for purchase for that Sub-Account. The value of Accumulation Units
for any Sub-Account for any subsequent business day is determined by multiplying
the value for the preceding business day by the net investment factor for that
Sub-Account for the period since that day (see the section entitled "Net
Investment Factor"). A business day is any day on which the New York Stock
Exchange is open for trading or any other day during which there is a sufficient
degree of trading of the Underlying Mutual Fund shares that the current Net
Asset Value of their Accumulation Units might be materially affected.
Accumulation Units are calculated on a daily basis.

ALLOCATION OF PURCHASE PAYMENTS

The Contract Owner or Participant must specify the proportion of the Purchase
Payments to be applied to provide benefits under any Sub-Account. The Company
will permit the Contract Owner, or the Participant if the Plan so permits, to
change the allocation percentages among Sub-Accounts for subsequent Purchase
Payments, provided that no change may be made which would result in an amount
less than 1% of the payment being allocated to any Sub-Account for any
Participant. The Company will permit such allocation changes as frequently as
permitted by the Plan. A change in allocation percentages will not affect
Accumulation Units of any Sub-Account resulting from Purchase Payments made
before the change.

VALUATION OF AN ACCOUNT

The sum of the value of all Accumulation Units credited to the Participant
Account is the Participant Account Value. Purchase Payments are allocated among
the Sub-Accounts in accordance with the instructions of the Contract Owner.

The value of a Participant Account on any day can be determined by multiplying
the total number of Accumulation Units credited to the account for each
Sub-Account by the current Accumulation Unit value for that Sub-Account in
respect of the Participant. Each Participant and the Contract Owner will be
advised periodically of the number of Accumulation Units credited to his or her
account for each Sub-Account, the current Accumulation Unit values, and the
total value of his or her account. Such reports to Participants are for
informational purposes only and should not be interpreted to mean that a
Participant has any rights with respect to his or her account beyond that
provided by the Contract Owner in accordance with the terms of the Plan.




<PAGE>   25


The Participant and Contract Owner should review the information in these
reports carefully. All errors or corrections must be reported to the Company
immediately to assure proper crediting to the Contract and appropriate
Sub-Accounts. The Company will assume all transactions are accurate unless the
Participant or the Contract Owner notifies the Company otherwise within 30 days
after receipt of the report.

The principal underwriter and distributor of the Contracts is Nationwide
Advisory Services, Inc. ("NAS"), Three Nationwide Plaza, Columbus, Ohio, 43215.

REDEMPTION OF PARTICIPANT ACCOUNTS

The Contract Owner's right to redeem Participant Accounts, either fully or
partially, will be governed by the terms of the Plan which the Contract is
issued to fund. It should be recognized that the value of the investment on
redemption can be more or less than its cost. All such payments will be made by
the Company to the Contract Owner. It is the Contract Owner's obligation to
distribute such payments to a Participant. The Company may undertake the
obligation on behalf of the Contract Owner to distribute such payments directly
to a Participant by agreement with the Contract Owner. To the extent permitted
by the Plan, a Participant Account may be redeemed fully or partially at any
time prior to the date Retirement Income Payments commence under either Option
B1 or B2. No partial redemption will directly affect future requirements to make
Purchase Payments for that Participant nor his or her retirement date. If the
Contract is terminated by the Contract Owner, all Participant Accounts in the
Variable Account will be redeemed to the extent permitted by the Plan, and such
Participant Accounts will be subject to any applicable CDSC. However, absent
Contract termination by the Contract Owner, the CDSC provision will not apply
and any full or partial redemptions made on behalf of a Participant will not be
subject to any CDSC (see "Contingent Deferred Sales Charge").

A request for a partial redemption of a Participant Account containing more than
one Sub-Account must specify the allocation of the partial redemption among the
Sub-Accounts. However, if no such direction is contained in the request for a
partial redemption, the Company may pro-rate the redemption among the applicable
Sub-Accounts. Upon receipt at the Home Office of a written request for a full or
partial redemption of a Participant Account, the Company will determine the
value of the number of Accumulation Units redeemed at the Accumulation Unit
value next computed following receipt of such written request by the Company.
Payment of any such amount will be made to the Contract Owner with reasonable
promptness, and in any event, within 7 days of the date the request is received
by the Company. Payment of redemption values may be suspended when redemption of
the Underlying Mutual Fund shares is suspended: (i) during any period in which
the New York Stock Exchange is closed; or (ii) in the event that the SEC may, by
order, direct for the protection of Contract Owners or Participants. Instead of
a lump sum Distribution of a full or partial redemption, the Contract Owner, or
Participant if permitted by the Plan, may elect to have that amount paid out in
installments under Option A1 or A2, subject to the minimums applicable to these
options.

            DISTRIBUTION OF PARTICIPANT ACCOUNTS (RETIREMENT PERIOD)

RETIREMENT INCOME PAYMENTS

The period during which a Participant Account is paid out in periodic
installments is known as the Distribution Period. Because periodic Distributions
will normally be made after the Participant retires, the Distribution Period is
also called the retirement period. All such periodic Distributions will be made
by the Company to the Contract Owner. It is the Contract Owner's obligation to
pay such amounts to a Participant. The Company may undertake the obligation on
behalf of the Contract Owner to pay such amounts directly to a Participant by
agreement with the Contract Owner. Retirement Income Payments under Options B1
and B2 are determined on the basis of: (i) the mortality tables specified in the
Contract; (ii) the adjusted age of the Retired Participant; (iii) the type of
Retirement Income Payment option(s) selected; and (iv) in the case of variable
payments, the investment performance of the specific Sub-Accounts elected. While
the Company may be obligated to make variable Retirement Income Payments under
the Contract, the amount of each such payment is not guaranteed. The dollar
amount of variable payments will reflect investment gains and losses, and
investment income of the Sub-Accounts on which they are based, but they will not
be affected by adverse mortality experience or by an increase in the Company's
expenses above the amount provided for in the Contracts.





<PAGE>   26



ELECTION OF INCOME FORM AND DATE

The Contracts provide for Retirement Income Payments to begin on the date and
under the retirement options elected in accordance with the Plan. At least one
month prior to a Participant's Retirement Commencement Date, the Contract Owner
may, by written election to the Home Office, elect any one of the retirement
income options described in this prospectus. The Plan may restrict changes in
election of retirement income options.

ALLOCATION OF RETIREMENT INCOME

Upon retirement, Accumulation Units in a Participant's Account may be used to
purchase a fixed dollar annuity for the Participant. For Participants electing
Options A1 or A2 as described in this prospectus, Accumulation Units in a
Participant's Account will be used to provide variable Retirement Income
Payments as described further in this prospectus.

FIXED DOLLAR ANNUITY

A fixed dollar annuity is an annuity with payments which are guaranteed as to
dollar amount during the retirement period. The first fixed dollar payment will
be determined by applying the value of the General Account Contract to the
applicable Annuity Table in accordance with the Optional Retirement Income Form
elected. This will be done at the retirement date. Fixed dollar annuity payments
after the first will not be less than the first fixed dollar annuity payment.
The availability of fixed dollar annuity Contracts under a particular Plan is
subject to the election of the Contract Owner.

MINIMUM PAYMENT

If the present value of the Participant's accrued benefit at the time of
retirement is less than $3,500, the Company will have the right to make a lump
sum Distribution to such Retired Participant.

DEATH BENEFIT BEFORE RETIREMENT

In the event a Participant dies before his or her retirement income commences, a
death benefit equal to the value of such Participant Account will be paid as
provided by the Plan upon: (1) the Company's receipt and verification of proof
of death; and (2) the Company's verification of Beneficiary designations. If the
Plan so provides, a Beneficiary may elect either to receive such value in a lump
sum or to apply it under any of the Optional Retirement Income Forms contained
in the Contract, subject to the minimums applicable to such optional forms.
Monthly payments due under such options may be fixed, variable, or a combination
of fixed and variable.

OPTIONAL RETIREMENT INCOME FORMS

The availability of the following Optional Retirement Income Forms is subject to
the election of the Contract Owner:

OPTION A1 - Payments for a Designated Period. Payments will be made monthly for
any specified number of years not to exceed 30 years. The amount of each
variable payment will be determined by multiplying (a) by (b), where: (a) is the
Accumulation Unit value for the date the payment is made; and (b) is the number
of Accumulation Units applied under this option divided by the number of
payments selected. Exchanges between the investment options are permitted
subject to limitations outlined in the Group Fixed Fund Retirement Contract. A
period certain payment period of less than 5 years for a Participant who has
less than a minimum of 5 Participant Account Years would result in imposition of
the applicable CDSC.

OPTION A2 - Payments of a Designated Amount. Payments will be made monthly in
equal installments (not less than $25 per month) until the amount applied,
adjusted each Valuation Date for investment results, is exhausted. The final
installment will be the sum remaining with the Company. Payments under this
option which result in a payment period of less than 5 years for a Participant
who has less than 5 Participant Account Years would result in imposition of the
applicable CDSC. Exchanges between the investment options are permitted subject
to limitations outlined in the Group Fixed Fund Retirement Contract.

OPTION B1 - Life Income with Payment Certain. Payments will be made monthly
during the lifetime of an individual with payments made for a period certain of
60, 120, 180, 240, 300 or 360 months, as elected. If the individual dies before
the end of the period certain, level payments will continue to the designated
Beneficiary during the remainder of the selected period certain.






<PAGE>   27



OPTION B2 - Joint and Survivor Life Income. Payments will be made monthly during
the joint lifetime of a Participant and a designated Beneficiary. Payments will
continue to be made as long as either is living. This option will permit the
choice of 100%, 75%, 66-2/3% or 50% of the original payment amount to be paid to
the Beneficiary. Payments will stop with the last payment due prior to the death
of the Beneficiary. If the Beneficiary predeceases the designated Annuitant,
then payments continue at 100% to the designated Annuitant.

OTHER FORMS AND BENEFIT PAYMENTS - With the consent of the Company, the amount
due upon Distribution may be applied on any other mutually agreeable basis.

Exchanges processed while Participants are receiving payments under Option A1
may change the number of Accumulation Units remaining. In this event, the
payment amount must be recalculated.

On the date on which Retirement Income Payments under Option B1 or B2 or any
other Retirement Income Payment measured by a life or lives commence in respect
of a Participant, all Accumulation Units (or the number thereof appropriate to
the election made) in any Sub-Account will be canceled.

DEATH OF RETIRED PARTICIPANT

If any Retired Participant dies while receiving payments, any death benefit
payable will be determined in accordance with the Retirement Income Form
elected. Calculation of the present value of any remaining payments certain for
purposes of making a lump sum payment will be based on the same assumed
investment rate used by the Company in determining the payments certain prior to
the death of the Retired Participant.

WITHDRAWAL

If permitted by the Plan, any amount remaining under Option A1 or A2 may be
withdrawn, or if that amount is at least $5,000, it may be applied under either
Option B1 or B2, subject to the minimum payment requirements described
previously. Unless prohibited by the Plan, a Beneficiary receiving payments
certain under Option B1 after the death of a Retired Participant may elect at
any time to receive the present value at the current dollar amount of the
remaining number of payments certain in a single payment, calculated on the
basis of the assumed investment rate used in computing the amount of the
previous payments.

FREQUENCY OF PAYMENT

At the election of the Retired Participant, and with the consent of the Contract
Owner, payments made under any option may be made annually, semi-annually, or
quarterly instead of monthly. Any change in frequency of payments must be on the
anniversary of the commencement of Retirement Income Payments.

DETERMINATION OF PAYMENTS UNDER OPTIONS A1 AND A2

Monthly payments under Options A1 and A2 will be determined in the manner set
forth in the description of the options. As each payment is made under either of
these options, a number of Accumulation Units equal in value to the payment will
be canceled.

DETERMINATION OF PAYMENTS UNDER OPTIONS B1 AND B2

Variable monthly payments under Options B1 and B2 will be determined annually
and will remain level throughout the year. Each year, as of the anniversary of
the commencement of Retirement Income Payments, a new variable monthly payment
will be determined and that new payment will remain level for that year. An
adjusted age is used to determine the amount of monthly payment for each year.
Such adjusted age may not be the same as the actual age of the Retired
Participant.

DETERMINATION OF AMOUNT OF VARIABLE MONTHLY PAYMENTS FOR FIRST YEAR

In determining the amount of Retirement Income Payments under Options B1 and B2,
the value held on behalf of a Participant is determined by multiplying the
number of Accumulation Units in each Sub-Account for that account by the
Accumulation Unit value for that Sub-Account on the last business day of the
second calendar week immediately preceding the date on which the first payment
is due.

The first year variable monthly payment for each Sub-Account is determined by
dividing the value of the Accumulation Units of that Sub-Account in the
Participant Account by the amount required to provide $1 per month (the purchase
rate).





<PAGE>   28

Once the first year's variable monthly payment amount has been determined for a
Participant, the Company will deduct the annual premium from the Participant
Account. This deduction is made by canceling a number of Accumulation Units in
the Participant Account equal in value to the annual premium. The allocation of
the annual premium between Sub-Accounts will be in such relationship as the
monthly payments from each Sub-Account have to each other.

The annual premium is calculated so that if there are no partial redemptions
(and therefore no Underlying Mutual Fund dividends have been taken in cash) the
payee will receive level annual payments if the net investment factor, on an
annual basis, is equal to the assumed investment rate plus an amount equal to
the annual administrative charge. Payments for subsequent years will be smaller
than, equal to, or greater than the payments received during the initial year,
depending on whether the actual net investment result on an annual basis of a
Sub-Account is smaller than, equal to, or greater than the assumed investment
rate.

DETERMINATION OF AMOUNT OF VARIABLE MONTHLY PAYMENTS FOR THE SECOND AND
SUBSEQUENT YEARS

As of the first anniversary of the commencement of Retirement Income Payments,
the second year variable monthly payment will be determined in exactly the same
manner as for the first year, using the purchase rates in the Contract for the
Retired Participant's age as then determined under the terms of the Contract. As
in the first year, an annual premium will be deducted and transferred to the
General Account from which the Company will make the Retirement Income Payment.
Subsequent annual determinations will be made in the same manner.

Upon the death of any Retired Participant, the Participant Account will be
reduced by the number of Accumulation Units not required to provide further
payments during the remainder of a period certain, if any, or to a contingent
Retired Participant. Any Accumulation Units so canceled will either remain in
the Variable Account or be transferred to the General Account, depending on the
Company's obligation.

ALTERNATE ASSUMED INVESTMENT RATE

The Contracts include purchase rates based on a 3.5% rate per annum. If not
prohibited by the laws and regulations of the states in which this Contract is
issued, a Contract Owner may elect on the Contract Date to have all variable
benefits payable for all Participants determined on an assumed investment rate
of 5% per annum. The assumed investment rate basis in the Contract is used
merely to determine each year's periodic payment from investment experience of
any of the Sub-Accounts. The choice of the assumed investment rate affects the
pattern of Retirement Income Payments. A higher assumed investment rate will
produce a higher initial year payment, but a more slowly rising series of
subsequent payments (or a more rapidly falling series of subsequent payments)
than a lower assumed investment rate.

Although a higher initial payment would be received under a higher assumed
investment rate, there is a point in time after which payments under a lower
assumed investment rate would be greater, assuming payment continues after that
point in time.

The objective of a variable retirement Contract is to provide level payments
during periods when the economy is relatively stable and to reflect as increased
payments only the excess of investment results flowing from inflation or an
increase in productivity. The achievement of this objective will depend in part
upon the validity of the assumption that the net investment result, on an annual
basis, of a Sub-Account equals the assumed investment rate during periods of
stable prices.

                               GENERAL INFORMATION

SUBSTITUTION OF SECURITIES

If the shares of any Underlying Mutual Fund should no longer be available for
investment by the Variable Account or if, in the judgment of the Company's
management, further investment in such Underlying Mutual Fund shares should
become inappropriate in view of the purposes of the Contract, the Company may
substitute shares of another Underlying Mutual Fund for Underlying Mutual Fund
shares already purchased or to be purchased in the future by Purchase Payments
under the Contract.

From time to time, it may become necessary for the Company to substitute
Underlying Mutual Fund shares for reasons relating to the historical investment
performance of the Underlying Mutual Funds. The Company, in consultation with
NACo and NACo's advisers, has developed standards for substituting Underlying
Mutual Funds that consistently experience poor investment performance over time.
These standards involve comparing the



<PAGE>   29

performance of each Underlying Mutual Fund within the Variable Account to the
performance of all other mutual funds within the Underlying Mutual Fund's same
risk category. Underlying Mutual Funds within the same risk category are
Underlying Mutual Funds with similar investment objectives and policies, and
similar volatilities of investment return.

In no event will any substitution of securities in the Variable Account take
place without prior approval of the SEC.

PERFORMANCE ADVERTISING

A "yield" and "effective yield" may be advertised for the Nationwide Money
Market Fund and the Short-Term Investments Trust Treasury Portfolio Sub-Account.
"Yield" is a measure of the net dividend and interest income earned over a
specific seven-day period (which period will be stated in the advertisement)
expressed as a percentage of the offering price of the Sub-Accounts' units.
Yield is an annualized figure, which means that it is assumed that the
Sub-Account generates the same level of net income each week over a 52-week
period. The "effective yield" is calculated similarly but includes the effect of
assumed compounding calculated under rules prescribed by the SEC. The effective
yield will be slightly higher than yield due to this compounding effect.

The Company may, from time to time, advertise several types of historical
performance of the Sub-Accounts. The Company may advertise for the Sub-Accounts
standardized "average annual total return," calculated in a manner prescribed by
the SEC, and nonstandardized "total return". "Average annual total return" will
show the percentage rate of return of a hypothetical initial investment of
$1,000 for the most recent one, five and ten year periods, or for a period
covering the time the Underlying Mutual Fund option has been available in the
Variable Account if the Underlying Mutual Fund option has not been available in
the Variable Account for any of the prescribed periods. THIS CALCULATION
REFLECTS THE DEDUCTION OF ALL APPLICABLE CHARGES MADE TO THE CONTRACTS EXCEPT
FOR PREMIUM TAXES, WHICH MAY BE IMPOSED BY CERTAIN STATES.

Nonstandardized "total return," calculated similar to standardized "average
annual total return," illustrates the percentage rate of return of a
hypothetical initial investment of $10,000 for the most recent one, five and ten
year periods, or for a period covering the time the Underlying Mutual Fund
option has been in existence. For those Underlying Mutual Fund options which
have not been held as Sub-Accounts for one of the prescribed periods, the
nonstandardized total return illustrations will show the investment performance
such Underlying Mutual Fund options would have achieved (reduced by the same
charges except the Participant Account Maintenance Charge and CDSC) had such
Underlying Mutual Fund options been available in the Variable Account for the
periods quoted. THE CDSC IS NOT REFLECTED BECAUSE THE CONTRACTS ARE DESIGNED FOR
LONG TERM INVESTMENT. THE CDSC, IF REFLECTED, WOULD DECREASE THE LEVEL OF
PERFORMANCE SHOWN. AN INITIAL INVESTMENT OF $10,000 IS ASSUMED BECAUSE THAT
AMOUNT MORE CLOSELY APPROXIMATES THE SIZE OF A TYPICAL CONTRACT THAN DOES THE
$1,000 ASSUMPTION USED IN CALCULATING THE STANDARDIZED AVERAGE ANNUAL TOTAL
RETURN QUOTATIONS.

The standardized average annual total return and nonstandardized total return
quotations reflected are calculated as described in this section using
Underlying Mutual Fund performance for the period ended December 31, 1997.
However, the Company generally provides performance quotations on a more
frequent basis, the results of which could reflect better or worse results than
shown. The quotations and other comparative material advertised by the Company
are based upon historical earnings and are not intended to represent or
guarantee future results. A Contract Owner's or Participant's Account Value at
redemption may be more or less than the original cost.

The Company may also advertise the performance of the Sub-Accounts relative to
the performance of other variable annuity sub-accounts or mutual funds with
similar or different objectives, or the investment industry as a whole.

The Sub-Accounts of the Variable Account may also be compared to certain market
indexes which may include, but are not limited to: S&P 500; Shearson/Lehman
Intermediate Government/Corporate Bond Index; Shearson/Lehman Long-Term
Government/Corporate Bond Index; Donoghue Money Fund Average; U.S. Treasury Note
Index; and Dow Jones Industrial Average.

Normally these rankings and ratings are published by independent tracking
services and publications of general interest including, but not limited to:
Lipper Analytical Services, Inc., CDA/Wiesenberger, Morningstar, Donoghue's,
magazines such as Money, Forbes, Kiplinger's Personal Finance Magazine,
Financial World, Consumer Reports, Business Week, Time, Newsweek, U.S. News and
World Report, National Underwriter; rating services such as LIMRA, Value, Best's
Agent Guide, Western Annuity Guide, Comparative Annuity Reports; and other
publications such as the Wall Street Journal, Barron's, Investor's Daily, and
Standard & Poor's Outlook. In addition, Variable




<PAGE>   30

Annuity Research & Data Service (The VARDS Report) is an independent rating
service that ranks over 500 variable annuity Underlying Mutual Funds based upon
total return performance. These rating services and publications rank the
performance of the Underlying Mutual Funds against all mutual funds over
specified periods and against mutual funds in specified categories. The rankings
may or may not include the effects of sales or other charges.

The Company is also ranked and rated by independent financial rating services,
among which are Moody's, Standard & Poor's and A.M. Best Company. The purpose of
these ratings is to reflect the financial strength or claims-paying ability of
the Company. The ratings are not intended to reflect the investment experience
or financial strength of the Variable Account. The Company may advertise these
ratings from time to time. In addition, the Company may include in certain
advertisements, endorsements in the form of a list of organizations, individuals
or other parties which recommend the Company or the Contract. Furthermore, the
Company may occasionally include in advertisements comparisons of currently
taxable and tax deferred investment programs, based on selected tax brackets, or
discussions of alternative investment vehicles and general economic conditions.

The Statement of Additional Information contains more detailed information about
the performance calculations, including actual examples for each type of
performance advertised.

CONTRACT OWNER INQUIRIES

Contract Owner and Participant inquiries may be directed to the Company by
writing Nationwide Life Insurance Company, P.O. Box 16766, One Nationwide Plaza,
Columbus, Ohio 43216, or calling 1-800-545-4730, T.T.Y. 1-800-848-0833.

NET INVESTMENT FACTOR

The net investment factor for any Valuation Period is determined by dividing (a)
by (b), and then subtracting (c) where:
(a)  is the net of
     (1)   the Net Asset Value per share of the Underlying Mutual Fund held in
           the Sub-Account determined at the end of the current Valuation
           Period; and
     (2)   the per share amount of any income or capital gains distributions
           made by the Underlying Mutual Fund held in the Sub-Account if the
           ex-dividend date occurs during the current Valuation Period;
(b)  is the Net Asset Value per share of the Underlying Mutual Fund held in the
     Sub-Account determined as of the end of the immediately preceding Valuation
     Period;
(c)  is a factor representing the daily Variable Account Annual Expense Fee
     deducted from the Variable Account. Such factor is equal to a maximum
     annual rate of 0.95% of the average value of the Variable Account.

The net investment factor may be greater or less than one, therefore, the value
of an Accumulation Unit may increase or decrease. It should be noted that
changes in the net investment factor may not be directly proportional to changes
in the Net Asset Value of Underlying Mutual Fund shares, because of the
deduction for the Variable Account Annual Expense Fee and the effect of the
various purchase and sale transactions on any particular day.

VALUATION OF ASSETS

Underlying Mutual Fund shares in the Variable Account will be purchased and
valued at their Net Asset Value (daily bid price exclusive of any sales
charges). An Underlying Mutual Fund's Net Asset Value per share is determined by
dividing the value of the total assets of the Underlying Mutual Fund, less
liabilities, by the number of shares outstanding, with no charge for sales
expense.

FEDERAL TAX STATUS

The following description of the federal tax status of these Contracts is not
exhaustive and special rules are provided with respect to situations not
discussed herein. For complete information, consult a qualified tax adviser. The
Company does not make any guarantee regarding the tax status of any Contract or
any transaction involving the Contracts. The Contracts are treated as a trust
for purposes of the Code under rules similar to the rules under Section 401(f)
of the Code.





<PAGE>   31



For federal income tax purposes, the operations of the Variable Account form a
part of the Company's operations. Under existing federal income tax law, no
taxes are payable by the Company on the investment income of the Variable
Account to the extent it is credited to the Contract Owners under the Contracts.
The Company is taxed as a life insurance company under Part One, Subchapter L of
the Code.

Income and capital gains of the Variable Account would normally be taxable to
Contract Owners whether or not taken by the Owners in cash. However, the
Contracts are issued only to organizations exempt from federal income tax.

The amounts received by the Participant under the Plan normally represent the
accumulation of Purchase Payments which were not previously included in the
Participant's gross income, therefore, any such amounts should be included in
gross income of a Participant or Beneficiary when such amounts are received.

It is the responsibility of each Contract Owner to determine that its Plan is
established and administered in accordance with the applicable provisions of the
Code.

CONTRACTS ISSUED UNDER THE NEW YORK MODEL PLAN

The following Contract amendments are required by the Rules and Regulations of
the New York State Deferred Compensation Board in order to market the Contracts
to governmental employers for use in funding public employee deferred
compensation plans in the state of New York.

Throughout the prospectus, references to "annuity" payments are modified to
"benefit" payments.

The "Suspension and Termination" provisions are amended to permit a Participant
to "freeze" his or her account and maintain the account on deposit with the
Company notwithstanding the Contract Owner's termination of its contractual
relationship with the Company. These accounts will remain the exclusive property
of the Contract Owner, subject to the claims of its general creditors.

All references throughout the prospectus to Life Income Options B1 and B2 are
deleted. All references to "CDSC" are deleted.

                           YEAR 2000 COMPLIANCE ISSUES

The Company has developed a plan to address issues related to the Year 2000. The
problem relates to many existing computer programs using only two digits to
identify a year in the date field. These programs were designed and developed
without considering the impact of the upcoming change in the century. If not
corrected, many computer applications could fail or create erroneous results by
or at the Year 2000. The Company has been evaluating its exposure to the Year
2000 issue through a review of all of its operating systems as well as
dependencies on the systems of others since 1996. The Company expects all system
changes and replacements needed to achieve Year 2000 compliance to be completed
by the end of 1998. Compliance testing will be completed in the first quarter of
1999. The Company charges all costs associated with these system changes as the
costs are incurred.

Operating expenses in 1997 include approximately $45 million on technology
projects, which includes costs related to Year 2000 and the development of a new
policy administration system for traditional life insurance products and other
system enhancements. The Company anticipates spending a comparable amount in
1998 on technology projects, including Year 2000 initiatives. These expenses do
not have an effect on the assets of the Variable Account and are not charged
through to the Contract Owner.

                                LEGAL PROCEEDINGS

The Company is a party to litigation and arbitration proceedings in the ordinary
course of its business, none of which is expected to have a material adverse
effect on the Company.

The General Distributor, Nationwide Advisory Services, Inc., is not engaged in
any litigation of any material nature.

In recent years, life insurance companies have been named as defendants in
lawsuits, including class action lawsuits, relating to life insurance pricing
and sales practices. A number of these lawsuits have resulted in substantial
jury awards or settlements. In February 1997, Nationwide Life Insurance Company
was named as a defendant in a lawsuit filed in New York Supreme Court related to
the sale of whole life policies on a "vanishing premium" basis (John H. Snyder
v. Nationwide Life Insurance Co.). The plaintiff in such lawsuit




<PAGE>   32

seeks to represent a national class of Nationwide Life policyholders and claims
unspecified compensatory and punitive damages. This lawsuit has not been
certified as a class action. In April, 1997, a motion to dismiss the Snyder
complaint in its entirety was filed by the defendants, and the plaintiff has
opposed such motion.

In November 1997, two plaintiffs, one who was the owner of a variable life
insurance contract and the other who was the owner of a variable annuity
contract, commenced an action against Nationwide Life Insurance Company and the
American Century group of defendants (Robert Young and David D. Distad v.
Nationwide Life Insurance Company et al.). In this action, plaintiffs seek to
represent a class of variable life insurance contract owners and variable
annuity contract owners whom they claim were allegedly misled when purchasing
these variable contracts into believing that some portion of their premiums were
invested in a publicly traded mutual fund when, in fact, the premium monies were
invested in a mutual fund whose shares may only be purchased by insurance
companies. The complaint seeks unspecified compensatory, treble and punitive
damages. In January 1998, both Nationwide Life Insurance Company and American
Century filed motions to dismiss the entire complaint. Plaintiffs' counsel have
opposed these motions and the federal court in Texas heard arguments on the
motions to dismiss in April, 1998. This lawsuit is in an early stage and has not
been certified as a class action. Nationwide Life Insurance Company intends to
defend this case vigorously.

There can be no assurance that any litigation relating to pricing and sales
practices will not have a material adverse effect on the Company in the future.

            TABLE OF CONTENTS OF STATEMENT OF ADDITIONAL INFORMATION
                                                                            PAGE
                                                                            ----
General Information and History................................................1
Services.......................................................................1
Purchase of Securities Being Offered...........................................1
Underwriters...................................................................2
Calculation of Performance.....................................................2
Annuity Payments...............................................................4
Financial Statements...........................................................5





<PAGE>   33


                                    APPENDIX
                      PARTICIPATING UNDERLYING MUTUAL FUNDS
              THE COMPANY MAY LIMIT THE NUMBER OF UNDERLYING MUTUAL
               FUNDS SELECTED BY OWNER, AND ALL UNDERLYING MUTUAL
                   FUNDS MAY NOT BE AVAILABLE UNDER YOUR PLAN.

A SUMMARY OF INVESTMENT OBJECTIVES IS CONTAINED IN THE DESCRIPTIONS OF EACH
UNDERLYING MUTUAL FUND BELOW. MORE DETAILED INFORMATION MAY BE FOUND IN THE
CURRENT PROSPECTUS FOR EACH UNDERLYING MUTUAL FUND. SUCH A PROSPECTUS FOR THE
UNDERLYING MUTUAL FUND OR FUNDS BEING CONSIDERED SHOULD ACCOMPANY THIS
PROSPECTUS AND SHOULD BE READ IN CONJUNCTION HEREWITH. A COPY OF EACH PROSPECTUS
MAY BE OBTAINED WITHOUT CHARGE FROM NATIONWIDE LIFE INSURANCE COMPANY, P. O. BOX
16766, ONE NATIONWIDE PLAZA, COLUMBUS, OHIO 43216, 1-800-545-4730 (TDD
1-800-848-0833).

AMERICAN CENTURY: TWENTIETH CENTURY ULTRA
The investment objective of the Fund is capital growth by investing primarily in
common stocks that are considered by management to have better-than-average
prospects for appreciation. It is management's intention that the portfolio will
generally consist of common stocks of medium-sized and smaller companies.
American Century Investment Services, Inc. serves as the Fund's investment
adviser.

THE DREYFUS THIRD CENTURY FUND, INC.
The Fund's primary goal is to provide capital growth through equity investment
in companies that, in the opinion of the Fund's management, not only to meet
traditional investment standards, but which also show evidence that they conduct
their business in a manner that contributes to the enhancement of the quality of
life of America. Current income is secondary to the primary goal. The Dreyfus
Corporation serves as the Fund's investment adviser.

FEDERATED U.S. GOVERNMENT SECURITIES FUND: 2-5 YEARS - INSTITUTIONAL SHARES
The investment objective of the Fund is current income. The Fund pursues this
investment objective by investing in U.S. government securities with remaining
maturities of five years or less. Federated Management serves as the Fund's
investment adviser.

FIDELITY EQUITY-INCOME FUND
The investment objective of the Fund is to obtain reasonable income from a
portfolio consisting primarily of income-producing equity securities. The Fund
seeks a yield which exceeds the composite yield on the securities comprising the
Standard & Poor's Composite Index of 500 Stocks. In pursuing this objective, the
Fund will also consider the potential for capital appreciation. Fidelity
Management & Research Company serves as the Fund's investment adviser.

FIDELITY OTC PORTFOLIO
The investment objective of the Fund is to seek capital appreciation by
investing primarily in securities traded on the over-the counter (OTC)
securities market. Securities traded on the OTC include, among others,
industrial corporations, financial services institutions, public utilities, and
transportation companies, common and preferred stocks, securities convertible
into common stock, warrants and similar rights, and debt securities, and
obligations of the federal government. The fund does not place any weight on
dividend and interest income unless it believes this income will have a
favorable influence on the market value of a security. Fidelity Management &
Research Company serves as the Fund's investment adviser.

FIDELITY PURITAN FUND
The investment objective of the Fund seeks to obtain as much income as possible,
consistent with the preservation and conservation of capital, by investing in a
broadly diversified portfolio of securities, including common stocks, preferred
stocks, and bonds. While emphasis on income is an important objective, this does
not preclude growth in capital since some securities offering a better than
average yield may also possess some growth possibilities. Fidelity Management &
Research Company serves as the Fund's investment adviser.


<PAGE>   34



MAS FUNDS FIXED INCOME PORTFOLIO
The investment objective of the Fund is to achieve above-average total return
over a market cycle of three of five years, consistent with reasonable risk, by
investing in a diversified portfolio of U.S. government securities, corporate
bonds (including bonds rated below investment grade commonly referred to as
"junk bonds"), foreign fixed-income securities and mortgage-backed securities of
domestic issuers and other fixed-income securities. The portfolio's average
weighted maturity will ordinarily be greater than five years. Miller, Anderson &
Sherrerd, LLP serves as the Fund's investment adviser.

MFS(R) HIGH INCOME FUND - CLASS A
The investment objective of the Fund is high current income by investing
primarily in a professionally managed diversified portfolio of fixed income
securities, some of which may involve equity features. Securities offering the
high current income sought by this Fund are ordinarily in the lower rating
categories of recognized rating agencies or are unrated and generally involve
greater volatility of price and risk of principal and income than securities in
the high rating categories. Capital growth, if any, is a consideration
incidental to the investment objective of high current income. Massachusetts
Financial Services Company serves as the Fund's investment adviser.

NATIONWIDE(R) FUND
The investment objective of the Fund is to obtain a total return from a flexible
combination of current income and capital appreciation. Primary emphasis is
given to common stocks, but investments may also include convertible issues,
bonds and money market instruments. Nationwide Advisory Services, Inc., serves
as the Fund's investment adviser.

NATIONWIDE(R) MONEY MARKET FUND
The investment objective of the Fund is to provide as high a level of current
income as is consistent with the preservation of capital and maintenance of
liquidity, through investment in a diversified portfolio of high quality money
market instruments maturing in 397 days or less. These instruments include, but
are not limited to, U.S. Government and Agency obligations, obligations of large
commercial and foreign banks, certificates of deposit of large savings
associations, taxable or partly taxable obligations of state, county and local
governments, highly rated commercial paper, highly rated corporate obligations,
and repurchase agreements in any of the above. Nationwide Advisory Services,
Inc., serves as the Fund's investment adviser.

NATIONWIDE PROFESSIONALLY MANAGED PORTFOLIOS ("NPMP")
NPMP consists of five separate nondiversified funds each of which is a
separately managed nondiversified portfolio with its own investment objective
and policies. The objective of each of the Portfolios which is fundamental, is
to maximize total investment return (i.e. capital growth and income) subject to
investment restrictions and asset allocation policies. The Portfolios will
maximize total investment return as is specifically detailed in the following
objectives which are non-fundamental and can be changed without approval of a
Portfolio's shareholders.

         NPMP - THE AGGRESSIVE PORTFOLIO
         The investment objective of this Fund is to provide growth of capital
         by investing in underlying funds which invest primarily in equity
         securities ("Equity Funds"). This Fund is generally appropriate for
         investors seeking higher returns over an investment time horizon of at
         least 15 years and having a higher tolerance for market fluctuations.
         Nationwide Advisory Services, Inc. ("NAS") serves as the Fund's
         investment adviser.

         NPMP - THE CONSERVATIVE PORTFOLIO
         The investment objective of this Fund is to provide primarily income
         and, secondarily, long term growth of capital. This Fund will seek to
         meet its objectives by primarily investing in a combination of the
         Nationwide Contract (a fixed interest contract) and fixed income
         securities ("Bond Funds"), with a similar investment in Equity Funds.
         This Fund is generally appropriate for investors seeking low
         fluctuations in principal over an investment time horizon of less than
         5 years, as well more conservative investors with an investment time
         horizon of between 5 and 10 years. NAS serves as the Fund's investment
         adviser.





<PAGE>   35



         NPMP - THE MODERATE PORTFOLIO
         The investment objective of this Fund is to provide growth of capital
         and income by investing primarily in Equity Funds, but will also invest
         a significant percentage of its assets in the Nationwide Contract and
         in Bond Funds. This Fund is generally appropriate for moderate
         investors seeking moderate returns over an investment time horizon of
         between 10 and 15 years; conservative investors with an investment time
         horizon of at least 15 years or more; and more aggressive investors
         with an investment time horizon of 5 to 10 years. NAS serves as the
         Fund's investment adviser.

         NPMP - THE MODERATELY AGGRESSIVE PORTFOLIO
         The investment objective of this Fund is to provide growth of capital
         by investing primarily in Equity Funds. However, the Fund attempts to
         reduce its volatility by also investing in the Nationwide Contract and
         Proprietary Funds which also invest primarily in Bond Funds. This Fund
         is generally appropriate for moderate investors seeking high returns
         over an investment time horizon of 15 years or for more aggressive
         investors with an investment time horizon of 10 to 15 years. NAS serves
         as the Fund's investment adviser.

         NPMP - THE MODERATELY CONSERVATIVE PORTFOLIO
         The investment objective of this Fund is to provide primarily income
         and, secondarily, long term growth of capital. This Fund will seek to
         meet its objective by generally investing half of its assets in Equity
         Funds with the remainder in the Nationwide Contract and Bond Funds.
         This Fund is generally appropriate for moderate investors seeking lower
         fluctuations in principal combined with some of the upside potential of
         equity investments over an investment time horizon of between 5 and 10
         years. This Fund is also generally appropriate for conservative
         investors with an investment time horizon of between 10 and 15 years
         and more aggressive investors with an investment time horizon of less
         than 5 years. NAS serves as the Fund's investment adviser.

NSAT - NATIONWIDE SMALL COMPANY FUND
The investment objective of the Fund is long term growth of capital by investing
primarily in equity securities of domestic and foreign companies with market
capitalizations of less than $1 billion at the time of purchase. The
subadvisers, Dreyfus Corporation, Neuberger & Berman, L.P., Picket International
Management Limited with Van Eck Associates Corporation, Strong Capital
Management, Inc. and Warburg Pincus Asset Management, Inc., were chosen because
they utilize a number of different investment styles when investing in small
company stocks. By utilizing different styles, the Fund's advisor, Nationwide
Advisory Services, Inc., hopes to increase prospects for investment return and
reduce market risk and volatility.

NEUBERGER & BERMAN GUARDIAN FUND, INC.
The Fund seeks capital appreciation through investments generally in
dividend-paying issues of established companies that its investment officers
believe are well managed. The emphasis of the Fund's investments is on common
stock. The Fund diversifies its holdings among different industries and
different companies in light of conditions prevailing at any given time. Current
income is a secondary objective. Neuberger&Berman Management Incorporated serves
as the Fund's investment adviser.

PUTNAM INVESTORS FUND - CLASS A
The investment objective of the Fund is long-term growth of capital and any
increased income resulting from such growth. The Fund is designed for investors
seeking long-term growth of capital from a portfolio consisting primarily of
common stocks. The Fund's management emphasizes investment in quality growth
stocks. Putnam Investment Management, Inc., serves as the Fund's investment
adviser.

PUTNAM VOYAGER FUND - CLASS A
The investment objective of the Fund is capital appreciation. The Fund invests
primarily in common stocks believed to have potential for capital appreciation
significantly greater than the market average. The Fund is designed for
investors willing to assume above-average risk in return for above-average
capital growth potential. Putnam Investment Management, Inc., serves as the
Fund's investment adviser.



<PAGE>   36



SEI INDEX FUNDS - S & P 500 INDEX PORTFOLIO
The S & P Index Portfolio seeks to provide investment results that correspond to
the aggregate price and dividend performance of the securities in the Standard &
Poor's 500 Composite Stock Price Index which is comprised of 500 selected common
stocks, most of which are listed on the New York Stock Exchange. The investment
objective is a fundamental policy of the Portfolio. There can be no assurance
that the Portfolio will achieve its investment objective. SEI Fund Management
serves as the Fund's investment adviser.

SELIGMAN GROWTH FUND, INC. - CLASS A
The investment objective of the Fund is longer-term growth in capital value and
an increase in future income. Fund assets have been invested primarily in common
stocks with the inherent investment risks tempered by portfolio diversification.
J & W Seligman & Co., Incorporated serves as the Fund's investment adviser.

SHORT-TERM INVESTMENTS TRUST - TREASURY PORTFOLIO - INSTITUTIONAL CLASS
The investment objective of the Portfolio is the maximization of current income
to the extent consistent with the preservation of capital and maintenance of
liquidity. The Portfolio seeks to achieve its objective by investing in a
portfolio consisting of direct obligations of the U.S. Treasury and repurchase
agreements secured by such obligations. The instruments purchased by the
Portfolio will have maturities of 397 days or less. AIM Advisers, Inc. serves as
the Fund's investment adviser.

T. ROWE PRICE INTERNATIONAL STOCK FUND(R)
The Fund's objective is long-term growth of capital through investments
primarily in common stocks of established, non-U.S. Companies. T. Rowe Price
Associates, Inc. serves as the Fund's investment adviser.

TEMPLETON FOREIGN FUND - CLASS I
The investment objective of the Fund is long-term capital growth through a
flexible policy of investing in stocks and debt obligations of companies and
governments outside the United States. Any income realized will be incidental.
Templeton Investment Counsel, Inc. serves as the Fund's investment adviser.

THE FOLLOWING UNDERLYING MUTUAL FUND IS NOT AVAILABLE FOR NEW PLANS ESTABLISHED
AFTER JUNE 30, 1998:

FIDELITY CONTRAFUND
The investment objective of the Fund is capital appreciation by investing in
securities that its manager believes are undervalued due to an overly
pessimistic appraisal by the public. Although the Fund will usually be invested
primarily in common stocks and securities convertible into common stock, the
percentage of its assets invested in other securities may vary. Fidelity
Management & Research Company serves as the Fund's investment adviser.

THE FOLLOWING UNDERLYING MUTUAL FUND IS NOT AVAILABLE FOR NEW CONTRACTS ISSUED
ON OR AFTER OCTOBER 1, 1997:

FIDELITY MAGELLAN(R) FUND
The investment objective of the Fund is capital appreciation by investing
primarily in common stock and securities convertible into common stock. The Fund
may also invest in foreign securities, which involves additional risks. The Fund
may also invest in stock index futures and options both of which can be volatile
investments. Fidelity Management & Research Company serves as the Fund's
investment adviser.

THE FOLLOWING UNDERLYING MUTUAL FUNDS ARE NOT AVAILABLE FOR NEW CONTRACTS ISSUED
ON OR AFTER MAY 1, 1997:

AMERICAN CENTURY: TWENTIETH CENTURY GROWTH
The investment objective of the Fund is capital growth through investment in
securities which the management considers to have better-than-average prospects
for appreciation. It is management's intention that the portfolio will generally
consist of common stocks of large established companies. American Century
Investment Services, Inc. serves as the Fund's investment adviser.

MASSACHUSETTS INVESTORS GROWTH STOCK FUND - CLASS A
The investment objective of the Fund is the long-term growth of capital and
future income rather than current income. Massachusetts Financial Services
Company serves as the Fund's investment adviser.



<PAGE>   37



THE FOLLOWING UNDERLYING MUTUAL FUNDS MAY NOT BE AVAILABLE TO ALL CONTRACT
OWNERS ON OR AFTER JULY 1, 1994:

THE BOND FUND OF AMERICA(SM), INC.
The Fund's investment objective is to provide as high a level of current income
as is consistent with the preservation of capital. The Fund invests
substantially all of its assets in marketable corporate debt securities, U.S.
Government securities, mortgage-related securities, other asset-backed
securities and cash or money market instruments. Normally, at least 65% of the
Fund's assets will be invested in bonds. Capital Research and Management Company
serves as the Fund's investment adviser.

THE INVESTMENT COMPANY OF AMERICA(R), INC.
The investment objectives are long-term growth of capital and income. The Fund
strives to accomplish these objectives through constant supervision, careful
selection and broad diversification. In the selection of securities for
investment, the possibilities of appreciation and potential dividends are given
more weight than current yield. The Fund ordinarily invests principally in
common stocks. However, assets may also be held in securities convertible into
common stocks, straight debt securities (rated in the top three quality
categories by Standard & Poor's Corporation or Moody's Investor Service, Inc. or
determined to be of equivalent quality by Capital Research and Management
Company), cash equivalent quality by Capital Research and Management Company),
cash or cash equivalents, U.S. Government securities, or nonconvertible
preferred stocks. Massachusetts Financial Services Company serves as the Fund's
investment adviser.

THE FOLLOWING UNDERLYING MUTUAL FUNDS ARE NOT AVAILABLE FOR NEW CONTRACTS ISSUED
ON OR AFTER OCTOBER 1, 1993:

EVERGREEN INCOME AND GROWTH FUND (FORMERLY THE EVERGREEN TOTAL RETURN FUND)
The investment objective of the Fund is current income and capital appreciation.
The Fund invests primarily in common and preferred stocks, securities
convertible into or exchangeable for common stocks, and fixed income securities.
The Fund's objective is to maximize the "total return" on its portfolio of
investments. Evergreen Asset Management Corp. serves as the Fund's investment 
adviser.

MFS(R) GROWTH OPPORTUNITIES FUND - CLASS A (FORMERLY "MFS(R) CAPITAL DEVELOPMENT
FUND")
The investment objective of the Fund is growth of capital. Dividend income, if
any, is incidental to the objective of capital growth. To achieve this
objective, a flexible approach toward types of companies as well as types of
securities is maintained by the Fund, depending upon the economic environment
and the relative attractiveness of the various securities markets. Massachusetts
Financial Services Company serves as the Fund's investment adviser.

NATIONWIDE(R) GROWTH FUND
The investment objective of the Fund is to achieve long-term capital
appreciation without emphasis on current return. Major emphasis in the selection
of securities is placed on companies which have capable management, and are in
fields where social and economic trends, technological developments, and new
processes or products indicate a potential for greater than average growth.
Nationwide Advisory Services, Inc. serves as the Fund's investment adviser.

THE FOLLOWING UNDERLYING MUTUAL FUNDS ARE NOT AVAILABLE FOR OWNERS WHOSE
PREDECESSOR NATIONWIDE DCVA CONTRACT WAS ISSUED ON OR AFTER JANUARY 1, 1987:

FIDELITY CAPITAL & INCOME FUND (FORMERLY, "FIDELITY HIGH INCOME FUND")
The investment objective of the Fund is to seek to provide a combination of
income and capital growth by investing primarily in debt instruments and common
and preferred stocks, with a focus on lower-quality debt securities and
securities of companies with uncertain financial positions. Fidelity Management
& Research Company serves as the Fund's investment adviser.

Effective on and after July 1, 1991, the Company shall no longer permit Owners
or Participants to make additional Purchase Payments or to exchange Contract
Values into the Fidelity Capital & Income Fund Sub-Account. However, Contract
Values held in the Fidelity Capital & Income Fund Sub-Account as of July 1, 1991
may continue to be invested in that Sub-Account. Unless the Company is notified
otherwise, any Purchase Payments or exchanges which the Contract Owner or
Participant directs the Company to invest in the Fidelity



<PAGE>   38

Capital & Income Fund Sub-Account on and after July 1, 1991 shall instead be
automatically invested in the Nationwide Money Market Fund Sub-Account.

The Company has determined that further investment in the Fidelity Capital &
Income Fund Sub-Account is not in the best interests of the Owners and
Participants in view of the Fund's adoption, effective for shares purchased on
and after February 1, 1991, of a redemption fee equal to 1.5% of the Net Asset
Value of any Fund shares redeemed which are held less than twelve months. Any
redemption fees which the Fund may assess against Fund shares held by the
Company in the NACo Variable Account which were purchased from February 1, 1991
to July 1, 1991 shall be paid by the Company from surplus and shall not be paid,
directly or indirectly, by Contract Owners, Participants or the NACo Variable
Account.





<PAGE>   39
   
                                   APPENDIX B

Information is shown below for each different Accumulation Unit value (current
as of December 31 of the preceding year). A Statement of Additional Information,
as well as specific information concerning the Accumulation Unit values for any
particular Plan, may be obtained by calling 1-800-545-4730 or by writing to P.O.
Box 16766, Columbus, Ohio 43216.

                         CONDENSED FINANCIAL INFORMATION
                            ACCUMULATION UNIT VALUES
          (FOR AN ACCUMULATION UNIT OUTSTANDING THROUGHOUT THE PERIOD)

TIER I****...............................................................0.95%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                   <C>              <C> 
American Century: Twentieth        4.562802             5.842997              17,611,062       1997
Century Growth                -------------------- -------------------- --------------------- --------
                                   4.005400             4.562802              15,929,074       1996
                              -------------------- -------------------- --------------------- --------
                                   3.359891             4.005400              37,362,979       1995
                              -------------------- -------------------- --------------------- --------
                                   3.443124             3.359891              38,748,520       1994
                              -------------------- -------------------- --------------------- --------
                                   3.350122             3.443124              41,912,416       1993
                              -------------------- -------------------- --------------------- --------
                                   3.533694             3.350122              43,106,409       1992
                              -------------------- -------------------- --------------------- --------
                                   2.571846             3.533694              31,955,054       1991
- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.424846             1.737833             125,555,220       1997
Century Ultra                 -------------------- -------------------- --------------------- --------
                                   1.263551             1.424846              51,280,940       1996
                              -------------------- -------------------- --------------------- --------
                                   0.926489             1.263551              79,405,506       1995
                              -------------------- -------------------- --------------------- --------
                                   0.970411             0.926489              59,484,505       1994
                              -------------------- -------------------- --------------------- --------
                                   1.000000             0.970411              21,036,904       1993
- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.155739             2.332586               6,366,974       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------
                                   2.039710             2.155739               3,393,296       1996
                              -------------------- -------------------- --------------------- --------
                                   1.741422             2.039710               6,578,720       1995
                              -------------------- -------------------- --------------------- --------
                                   1.850918             1.741422               5,740,929       1994
                              -------------------- -------------------- --------------------- --------
                                   1.637181             1.850918               5,644,051       1993
                              -------------------- -------------------- --------------------- --------
                                   1.484255             1.637181               4,185,113       1992
                              -------------------- -------------------- --------------------- --------
                                   1.338732             1.484255               3,262,200       1991*
- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.756438             3.532278              14,863,803       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------
                                   2.238323             2.756438               5,449,596       1996
                              -------------------- -------------------- --------------------- --------
                                   1.663803             2.238323               9,402,637       1995
                              -------------------- -------------------- --------------------- --------
                                   1.814915             1.663803               9,817,673       1994
                              -------------------- -------------------- --------------------- --------
                                   1.740666             1.814915              10,291,485       1993
                              -------------------- -------------------- --------------------- --------
                                   1.723855             1.740666               8,918,980       1992
                              -------------------- -------------------- --------------------- --------
                                   1.503652             1.723855               4,654,790       1991*
- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.947502             2.422617               1,666,312       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------
(formerly Evergreen Total          1.741651             1.947502               1,070,229       1996
Return Fund)                  -------------------- -------------------- --------------------- --------
                                   1.419467             1.741651               2,635,928       1995
                              -------------------- -------------------- --------------------- --------
                                   1.531292             1.419467               3,343,918       1994
                              -------------------- -------------------- --------------------- --------
                                   1.368966             1.531292              10,220,011       1993
                              -------------------- -------------------- --------------------- --------
                                   1.256090             1.368966               8,701,160       1992
                              -------------------- -------------------- --------------------- --------
                                   1.146614             1.256090               7,977,105       1991*
- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>

                                                      (Continued on next page)
    

<PAGE>   40
   
<TABLE>
                           CONDENSED FINANCIAL INFORMATION (CONTINUED)
<CAPTION>
                                 Accumulation         Accumulation        Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                   <C>             <C> 
Federated U.S. Government          1.226751             1.301886              3,296,152       1997
Securities Fund: 2-5 years -  -------------------- -------------------- ------------------ -----------
Institutional Shares               1.195751             1.226751              1,296,431       1996
                              -------------------- -------------------- ------------------ -----------
                                   1.062969             1.195751              2,344,091       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.094086             1.062969              1,802,090       1994
                              -------------------- -------------------- ------------------ -----------
                                   1.031362             1.094086              1,501,568       1993
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             1.031362                359,089       1992
- ----------------------------- -------------------- -------------------- ------------------ -----------
Fidelity Capital &                 4.096488             4.654233                570,207       1997
Income Fund                   -------------------- -------------------- ------------------ -----------
                                   3.712491             4.096488                294,263       1996
                              -------------------- -------------------- ------------------ -----------
                                   3.210584             3.712491                818,785       1995
                              -------------------- -------------------- ------------------ -----------
                                   3.397953             3.210584                900,127       1994
                              -------------------- -------------------- ------------------ -----------
                                   2.746533             3.397953              1,009,928       1993
                              -------------------- -------------------- ------------------ -----------
                                   2.165417             2.746533              1,100,291       1992
                              -------------------- -------------------- ------------------ -----------
                                   1.972198             2.165417              1,260,909       1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Fidelity Contrafund                1.588961             1.935931            165,606,687       1997
                              -------------------- -------------------- ------------------ -----------
                                   1.315600             1.588961             63,488,282       1996
                              -------------------- -------------------- ------------------ -----------
                                   0.974545             1.315600             86,483,728       1995
                              -------------------- -------------------- ------------------ -----------
                                   0.994981             0.974545             59,048,072       1994
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             0.994981             17,300,194       1993
- ----------------------------- -------------------- -------------------- ------------------ -----------
Fidelity Equity-Income Fund        5.359692             6.900916             51,141,002       1997
                              -------------------- -------------------- ------------------ -----------
                                   4.471070             5.359692             21,843,280       1996
                              -------------------- -------------------- ------------------ -----------
                                   3.424310             4.471070             41,090,717       1995
                              -------------------- -------------------- ------------------ -----------
                                   3.448520             3.424310             37,439,255       1994
                              -------------------- -------------------- ------------------ -----------
                                   2.869860             3.448520             30,564,448       1993
                              -------------------- -------------------- ------------------ -----------
                                   2.526472             2.869860             25,417,028       1992
                              -------------------- -------------------- ------------------ -----------
                                   2.283309             2.526472             24,200,256       1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Fidelity Magellan(R) Fund          1.439440             1.804998             68,868,962       1997
                              -------------------- -------------------- ------------------ -----------
                                   1.301185             1.439440             35,450,214       1996
                              -------------------- -------------------- ------------------ -----------
                                   0.960039             1.301185             63,751,788       1995
                              -------------------- -------------------- ------------------ -----------
                                   0.987051             0.960039             43,410,162       1994
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             0.987051              9,307,585       1993
- ----------------------------- -------------------- -------------------- ------------------ -----------
Fidelity OTC Portfolio             1.680710             1.829868             17,193,114       1997
                              -------------------- -------------------- ------------------ -----------
                                   1.371346             1.680710              4,002,730       1996
                              -------------------- -------------------- ------------------ -----------
                                   1.001544             1.371346              3,611,136       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             1.001544                414,031       1994
- ----------------------------- -------------------- -------------------- ------------------ -----------
Fidelity Puritan Fund              1.317344             1.596539             19,817,717       1997
                              -------------------- -------------------- ------------------ -----------
                                   1.154955             1.317344              8,701,486       1996
                              -------------------- -------------------- ------------------ -----------
                                   0.959935             1.154955             11,375,851       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             0.959935              3,191,039       1994
- ----------------------------- -------------------- -------------------- ------------------ -----------
The Investment                     1.771097             2.277283             31,651,569       1997
Company of America(R)         -------------------- -------------------- ------------------ -----------
                                   1.498194             1.771097             14,871,400       1996
                              -------------------- -------------------- ------------------ -----------
                                   1.157835             1.498194             21,189,283       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.167040             1.157835             15,911,747       1994
                              -------------------- -------------------- ------------------ -----------
                                   1.055548             1.167040              9,316,764       1993
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             1.055548              1,904,764       1992
- ----------------------------- -------------------- -------------------- ------------------ -----------
MAS Funds Fixed Income             1.229760             1.335173              2,016,658       1997
Portfolio                     -------------------- -------------------- ------------------ -----------
                                   1.156444             1.229760                554,865       1996
                              -------------------- -------------------- ------------------ -----------
                                   0.980782             1.156444                461,663       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             0.980782                 16,059       1994
- ----------------------------- -------------------- -------------------- ------------------ -----------
MFS(R) Growth                      7.380232             9.012670              1,768,566       1997
Opportunities Fund-Class A    -------------------- -------------------- ------------------ -----------
                                   6.114190             7.380232              1,022,657       1996
                              -------------------- -------------------- ------------------ -----------
                                   4.589533             6.114190              2,209,754       1995
                              -------------------- -------------------- ------------------ -----------
                                   4.834037             4.589533              2,656,048       1994
                              -------------------- -------------------- ------------------ -----------
                                   4.200054             4.834037              6,486,767       1993
                              -------------------- -------------------- ------------------ -----------
                                   3.936838             4.200054              6,897,026       1992
                              -------------------- -------------------- ------------------ -----------
                                   3.656615             3.936838              7,710,706       1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>


                                                      (Continued on next page)
    


<PAGE>   41
   
<TABLE>
                             CONDENSED FINANCIAL INFORMATION (CONTINUED)
<CAPTION>
                                 Accumulation         Accumulation         Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                 <C>                  <C>                 <C>               <C> 
MFS(R)High                         5.518160             6.168371            2,328,945         1997
Income Fund- Class A          -------------------- -------------------- ------------------ -----------
                                   4.949752             5.518160            1,009,326         1996
                              -------------------- -------------------- ------------------ -----------
                                   4.265493             4.949752            1,898,625         1995
                              -------------------- -------------------- ------------------ -----------
                                   4.422523             4.265493            1,736,718         1994
                              -------------------- -------------------- ------------------ -----------
                                   3.739642             4.422523            1,666,484         1993
                              -------------------- -------------------- ------------------ -----------
                                   3.225557             3.739642            1,036,199         1992
                              -------------------- -------------------- ------------------ -----------
                                   2.894993             3.225557              817,803         1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Massachusetts Investors           10.880822            15.968069              801,488         1997
Growth Stock Fund -           -------------------- -------------------- ------------------ -----------
Class A                            8.942612            10.880822              491,538         1996
                              -------------------- -------------------- ------------------ -----------
                                   7.034148             8.942612              877,034         1995
                              -------------------- -------------------- ------------------ -----------
                                   7.613442             7.034148              876,723         1994
                              -------------------- -------------------- ------------------ -----------
                                   6.714892             7.613442              837,196         1993
                              -------------------- -------------------- ------------------ -----------
                                   6.368639             6.714892              711,003         1992
                              -------------------- -------------------- ------------------ -----------
                                   5.100857             6.368639              559,059         1991
- ----------------------------- -------------------- -------------------- ------------------ -----------
Nationwide(R)                     14.964379            20.697282            4,299,707         1997
Fund                          -------------------- -------------------- ------------------ -----------
                                  12.191058            14.964379            1,456,965         1996
                              -------------------- -------------------- ------------------ -----------
                                   9.468045            12.191058            2,755,666         1995
                              -------------------- -------------------- ------------------ -----------
                                   9.502760             9.468045            2,754,540         1994
                              -------------------- -------------------- ------------------ -----------
                                   8.985447             9.502760            2,950,704         1993
                              -------------------- -------------------- ------------------ -----------
                                   8.810680             8.985447            3,032,348         1992
                              -------------------- -------------------- ------------------ -----------
                                   7.837093             8.810680            2,238,323         1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Nationwide(R)                      3.083008             3.854877            1,987,181         1997
Growth Fund                   -------------------- -------------------- ------------------ -----------
                                   2.667201             3.083008            1,157,824         1996
                              -------------------- -------------------- ------------------ -----------
                                   2.092009             2.667201            2,409,384         1995
                              -------------------- -------------------- ------------------ -----------
                                   2.081399             2.092009            2,602,594         1994
                              -------------------- -------------------- ------------------ -----------
                                   1.887524             2.081399            6,293,504         1993
                              -------------------- -------------------- ------------------ -----------
                                   1.792687             1.887524            5,507,203         1992
                              -------------------- -------------------- ------------------ -----------
                                   1.498853             1.792687            4,283,563         1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Nationwide(R)Money                 2.884848             3.003821           14,828,575         1997
Market Fund**                 -------------------- -------------------- ------------------ -----------
                                   2.774433             2.884848            6,821,937         1996
                              -------------------- -------------------- ------------------ -----------
                                   2.654661             2.774433           15,458,252         1995
                              -------------------- -------------------- ------------------ -----------
                                   2.583387             2.654661           14,664,113         1994
                              -------------------- -------------------- ------------------ -----------
                                   2.542721             2.583387           15,887,549         1993
                              -------------------- -------------------- ------------------ -----------
                                   2.487178             2.542721           17,431,451         1992
                              -------------------- -------------------- ------------------ -----------
                                   2.437912             2.487178           20,546,392         1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Neuberger & Berman                 1.460410             1.706116           23,446,031         1997
Guardian Fund, Inc.           -------------------- -------------------- ------------------ -----------
                                   1.250781             1.460410            6,973,153         1996
                              -------------------- -------------------- ------------------ -----------
                                   0.955773             1.250781            7,940,457         1995
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             0.955773              907,272         1994
- ----------------------------- -------------------- -------------------- ------------------ -----------
Putnam Investors                  13.594501            18.110411            3,305,277         1997
Fund-Class A                  -------------------- -------------------- ------------------ -----------
                                  11.305164            13.594501            1,545,059         1996
                              -------------------- -------------------- ------------------ -----------
                                   8.297318            11.305164            2,260,621         1995
                              -------------------- -------------------- ------------------ -----------
                                   8.652501             8.297318            2,145,377         1994
                              -------------------- -------------------- ------------------ -----------
                                   7.410567             8.652501            1,975,963         1993
                              -------------------- -------------------- ------------------ -----------
                                   6.934213             7.410567            1,682,860         1992
                              -------------------- -------------------- ------------------ -----------
                                   6.383603             6.934213            1,597,104         1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Putnam Voyager                     3.074879             3.837109           52,162,678         1997
Fund-Class A                  -------------------- -------------------- ------------------ -----------
                                   2.752130             3.074879           22,936,312         1996
                              -------------------- -------------------- ------------------ -----------
                                   1.982311             2.752130           27,203,903         1995
                              -------------------- -------------------- ------------------ -----------
                                   1.992379             1.982311           19,751,850         1994
                              -------------------- -------------------- ------------------ -----------
                                   1.698751             1.992379           12,946,038         1993
                              -------------------- -------------------- ------------------ -----------
                                   1.563079             1.698751            5,917,563         1992
                              -------------------- -------------------- ------------------ -----------
                                   1.256187             1.563079            1,655,847         1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
SEI Index Fund - S & P 500         1.139331             1.501834           38,540,683         1997
Index Portfolio               -------------------- -------------------- ------------------ -----------
                                   1.000000             1.139331            4,129,102         1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>


                                                      (Continued on next page)

    
<PAGE>   42

   
<TABLE>
                          CONDENSED FINANCIAL INFORMATION (CONTINUED)
<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                    <C>            <C> 
Seligman Growth                   10.720312            12.541848                772,926       1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------
                                   8.934609            10.720312                381,977       1996
                              -------------------- -------------------- ------------------ -----------
                                   7.020585             8.934609                616,776       1995
                              -------------------- -------------------- ------------------ -----------
                                   7.370495             7.020585                582,039       1994
                              -------------------- -------------------- ------------------ -----------
                                   6.989639             7.370495                538,601       1993
                              -------------------- -------------------- ------------------ -----------
                                   6.340967             6.989639                364,304       1992
                              -------------------- -------------------- ------------------ -----------
                                   5.483042             6.340967                308,224       1991*
- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.168909             1.222017              3,399,331       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional          1.119630             1.168909              1,151,812       1996
Class ***                    -------------------- -------------------- ------------------ -----------
                                   1.066889             1.119630              1,524,715       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.034183             1.066889              1,223,255       1994
                              -------------------- -------------------- ------------------ -----------
                                   1.012172             1.034183                500,957       1993
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             1.012172                246,584       1992
- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.178559             1.198954             23,881,713       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------
                                   1.025854             1.178559              9,304,599       1996
                              -------------------- -------------------- ------------------ -----------
                                   0.929695             1.025854             10,412,582       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             0.929695              4,482,375       1994
- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.215580             1.284158             37,738,973       1997
Class I                       -------------------- -------------------- ------------------ -----------
                                   1.040054             1.215580             13,461,397       1996
                              -------------------- -------------------- ------------------ -----------
                                   0.944596             1.040054             16,316,118       1995
                              -------------------- -------------------- ------------------ -----------
                                   1.000000             0.944596              6,972,585       1994
- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   The 7-day yield on the Nationwide(R) Money Market Fund as of December 31,
     1997 was 4.23%.

***  The 7-day yield on the Short-Term Investments Trust - Treasury Portfolio -
     Institutional Class as of December 31, 1997 was 3.91%.

**** For Plans converted to a Variable Account Annual Expense Fee of 0.95% of
     average net assets on December 31, 1995.

Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
Nationwide Professionally Managed Portfolios - The Moderately Aggressive
Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
available January 19, 1998, and therefore unit value information is not
available.
    

<PAGE>   43



   
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER IIA**...............................................................0.90%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                    <C>             <C> 
American Century: Twentieth        4.564331             5.847874               2,972,496       1997
Century Growth                -------------------- -------------------- --------------------- --------
                                   4.258167             4.564331               6,416,724       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.425323             1.739283              17,512,296       1997
Century Ultra                 -------------------- -------------------- --------------------- --------
                                   1.349699             1.425323              17,364,360       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.156482             2.334569                 838,935       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------
                                   2.019231             2.156482               1,041,402       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.757360             3.535226               2,141,147       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------
                                   2.450467             2.757360               1,806,885       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.948154             2.424638                 164,209       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------
                                   1.797369             1.948154                 267,437       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.227166             1.302984                 485,556       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares               1.179520             1.227166                 431,282       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Capital &                 4.097872             4.658156                  50,755       1997
Income Fund                   -------------------- -------------------- --------------------- --------
                                   3.859929             4.097872                  76,382       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.589493             1.937547              23,258,606       1997
                              -------------------- -------------------- --------------------- --------
                                   1.428112             1.589493              22,719,185       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.361485             6.906673               6,412,368       1997
                              -------------------- -------------------- --------------------- --------
                                   4.790401             5.361485               7,437,534       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.439922             1.806504               9,967,418       1997
                              -------------------- -------------------- --------------------- --------
                                   1.327329             1.439922              12,036,679       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.681272             1.831396               2,364,115       1997
                              -------------------- -------------------- --------------------- --------
                                   1.509365             1.681272               1,269,335       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.317785             1.597871               2,540,462       1997
                              -------------------- -------------------- --------------------- --------
                                   1.202745             1.317785               3,037,801       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                     1.771690             2.279183               5,422,918       1997
Company of America(R)         -------------------- -------------------- --------------------- --------
                                   1.588880             1.771690               5,329,249       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.230172             1.336288                 274,281       1997
Portfolio                     -------------------- -------------------- --------------------- --------
                                   1.148924             1.230172                 236,446       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.382705             9.020195                 235,276       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------
                                   6.921487             7.382705                 323,628       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.520025             6.173570                 244,788       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------
                                   5.086868             5.520025                 244,640       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors           10.884466            15.981395                 111,799       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------
                                  10.146619            10.884466                 155,643       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     14.969386            20.714549                 592,502       1997
Fund                          -------------------- -------------------- --------------------- --------
                                  13.111630            14.969386                 557,908       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.084040             3.858094                 360,606       1997
Growth Fund                   -------------------- -------------------- --------------------- --------
                                   2.839932             3.084040                 507,782       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.885823             3.006353               1,760,454       1997
Market Fund                   -------------------- -------------------- --------------------- --------
                                   2.810833             2.885823               2,854,818       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.460899             1.707540               3,222,201       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------
                                   1.325880             1.460899               2,513,725       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  13.599051            18.125525                 329,877       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------
                                  12.145782            13.599051                 371,840       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.075909             3.840312               7,200,296       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------
                                   3.068900             3.075909               7,518,991       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.139711             1.503085               5,223,019       1997
Index Portfolio               -------------------- -------------------- --------------------- --------
                                   1.000000             1.139711               1,547,081       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>
    



<PAGE>   44
   
<TABLE>
                         CONDENSED FINANCIAL INFORMATION (CONTINUED)

<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                     <C>           <C> 
Seligman Growth                   10.723901            12.552317                 80,990       1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------
                                   9.776056            10.723901                 90,771       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.169304             1.223047                203,199       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional          1.135916             1.169304                201,261       1996
Class
- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.178953             1.199955              3,056,840       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------
                                   1.108680             1.178953              3,705,323       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.215987             1.285230              5,823,447       1997
Class I                       -------------------- -------------------- ------------------ -----------
                                   1.114639             1.215987              5,803,820       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.90% of
     average net assets on December 31, 1995.

Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
Nationwide Professionally Managed Portfolios - The Moderately Aggressive
Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
available January 19, 1998, and therefore unit value information is not
available.
    

<PAGE>   45



   
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER IIB**.............................................................0.90%
<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                    <C>             <C> 
American Century: Twentieth        4.764658             5.844955               1,115,895       1997
Century Growth                -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.470933             1.738415               6,429,806       1997
Century Ultra                 -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.179712             2.333393                 463,715       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.906659             3.533462                 828,576       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.944620             2.423429                 104,407       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.235181             1.302328                 153,705       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Capital &                 4.129010             4.655810                  22,125       1997
Income Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.593589             1.936580               8,810,458       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.625012             6.903229               2,726,805       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.490427             1.805603               3,146,118       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.600124             1.830482                 750,546       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.384849             1.597074               1,227,566       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                     1.885626             2.278047               1,973,413       1997
Company of America(R)         -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.244949             1.335621                  39,766       1997
Portfolio                     -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.657658             9.015691                 106,751       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.601820             6.170461                 148,670       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors            12.09650            15.973419                  38,917       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     16.371504            20.704221                 180,761       1997
Fund                          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.186783             3.856169                 106,963       1997
Growth Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.922724             3.004839                 472,514       1997
Market Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.524036             1.706688               1,051,558       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  14.537628            18.116482                 157,603       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.040484             3.838394               2,560,666       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.231347             1.502337               1,203,420       1997
Index Portfolio               -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>


    
<PAGE>   46


   
<TABLE>
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)
<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                     <C>           <C> 
Seligman Growth                   10.978898            12.546053                42,594        1997
Fund, Inc.-Class A            -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.185797             1.222431                156,120       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional
Class                         -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.190178             1.199356              1,203,031       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.266735             1.284589              1,891,595       1997
Class I                       -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.90% of
     average net assets on December 31, 1996.

Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
Nationwide Professionally Managed Portfolios - The Moderately Aggressive
Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
available January 19, 1998, and therefore unit value information is not
available.
    



<PAGE>   47
   
                  CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER IIIA**..............................................................0.80%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                    <C>             <C> 
American Century: Twentieth        4.567388             5.857641               1,491,035       1997
Century Growth                -------------------- -------------------- --------------------- --------
                                   4.258179             4.567388               3,952,718       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.426278             1.742188               9,471,388       1997
Century Ultra                 -------------------- -------------------- --------------------- --------
                                   1.349702             1.426278              11,724,488       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.157968             2.338535                 597,695       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------
                                   2.019264             2.157968                 737,276       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.759207             3.541129                 917,688       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------
                                   2.450473             2.759207               1,075,140       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.949458             2.428687                 130,014       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------
                                   1.797374             1.949458                 303,775       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.227995             1.305179                 241,356       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares               1.179523             1.227995                 184,497       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Capital &                 4.100640             4.666006                 120,784       1997
Income Fund                   -------------------- -------------------- --------------------- --------
                                   3.859939             4.100640                 203,017       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.590557             1.940782              12,620,829       1997
                              -------------------- -------------------- --------------------- --------
                                   1.428116             1.590557              13,966,075       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.365074             6.918202               5,904,892       1997
                              -------------------- -------------------- --------------------- --------
                                   4.790414             5.365074               6,668,170       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.440886             1.809520               5,726,530       1997
                              -------------------- -------------------- --------------------- --------
                                   1.327332             1.440886               6,812,829        1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.682398             1.834455               1,302,436       1997
                              -------------------- -------------------- --------------------- --------
                                   1.509369             1.682398                 886,668       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.318667             1.600539               1,283,945       1997
                              -------------------- -------------------- --------------------- --------
                                   1.202749             1.318667               1,390,626       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                     1.772876             2.282988               2,356,594       1997
Company of America(R)         -------------------- -------------------- --------------------- --------
                                   1.588884             1.772876               2,306,070       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.230995             1.338520                  94,434       1997
Portfolio                     -------------------- -------------------- --------------------- --------
                                   1.148928             1.230995                 116,525       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.387651             9.035263                 197,549       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------
                                   6.921506             7.387651                 330,931       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.523753             6.183974                 233,869       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------
                                   5.086882             5.523753                 252,930       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors           10.891758            16.008079                  78,577       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------
                                  10.146647            10.891758                 136,164       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     14.979404            20.749126                 355,149       1997
Fund                          -------------------- -------------------- --------------------- --------
                                  13.111665            14.979404                 289,479       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.086105             3.864536                  89,839       1997
Growth Fund                   -------------------- -------------------- --------------------- --------
                                   2.839940             3.086105                 133,215       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.887772             3.011419               1,219,186       1997
Market Fund                   -------------------- -------------------- --------------------- --------
                                   2.810841             2.887772               1,754,115       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.461877             1.710392               1,596,621       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------
                                   1.325883             1.461877               1,655,042       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  13.608156            18.155790                 233,708       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------
                                  12.145815            13.608156                 239,486       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.077970             3.846728               3,817,279       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------
                                   3.068905             3.077970               4,941,310       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.140471             1.505589               3,491,065       1997
Index Portfolio               -------------------- -------------------- --------------------- --------
                                   1.000000             1.140471               1,023,459       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>

    
<PAGE>   48
   
<TABLE>
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)
<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                     <C>           <C> 
Seligman Growth                   10.731082            12.573280                 61,083       1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------
                                   9.776083            10.731082                107,031       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.170093             1.225108                331,148       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional          1.135919             1.170093                394,386       1996
Class                         -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.179742             1.201960              1,722,849       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------
                                   1.108683             1.179742              2,213,126       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.216800             1.287377              2,363,601       1997
Class I                       -------------------- -------------------- ------------------ -----------
                                   1.114642             1.216800              2,314,772       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.80% of
     average net assets on December 31, 1995.

Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
Nationwide Professionally Managed Portfolios - The Moderately Aggressive
Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
available January 19, 1998, and therefore unit value information is not
available.

    

<PAGE>   49
   
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER IIIB**...............................................................0.80%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                      <C>           <C> 
American Century: Twentieth        4.767050             5.851796                 674,415       1997
Century Growth                -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.471671             1.740450               4,660,957       1997
Century Ultra                 -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.180847             2.336182                 219,702       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.908118             3.537596                 406,041       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.945596             2.426264                  25,537       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.235806             1.303866                  61,181       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Capital &                 4.131192             4.661311                  14,865       1997
Income Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.594389             1.938846               6,956,699       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.627834             6.911304               2,138,680       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.491175             1.807715               2,856,554       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.600928             1.832624                 658,565       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.385544             1.598943                 860,797       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                     1.886572             2.280712               1,183,576       1997
Company of America(R)         -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.245574             1.337185                   8,001       1997
Portfolio                     -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.661505             9.026243                  63,570       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.604658             6.177751                  67,909       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors           12.102572            15.992105                  39,760       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     16.379716            20.728440                 193,920       1997
Fund                          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.188382             3.860681                 119,317       1997
Growth Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.924205             3.008389                 683,175       1997
Market Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.524801             1.708685                 826,685       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  14.544925            18.137679                 183,147       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.042012             3.842887               1,982,897       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.231963             1.504092               1,782,753       1997
Index Portfolio               -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>
    
<PAGE>   50


   
<TABLE>
                           CONDENSED FINANCIAL INFORMATION (CONTINUED)
<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                     <C>           <C> 
Seligman Growth                   10.984409            12.560735                 23,580       1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.186398             1.223875                 28,293       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional
Class                         -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.190775             1.200760              1,125,641       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.267370             1.286093              1,989,093       1997
Class I                       -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program). 

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.80% of
     average net assets on December 31, 1996.

Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
Nationwide Professionally Managed Portfolios - The Moderately Aggressive
Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
available January 19, 1998, and therefore unit value information is not
available.
    


<PAGE>   51
   

                   CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER IVA**................................................................0.70%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                      <C>           <C> 
American Century: Twentieth        4.570448             5.867425                 672,795       1997
Century Growth                -------------------- -------------------- --------------------- --------
                                   4.258190             4.570448               6,694,438       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.427234             1.745098               4,693,395       1997
Century Ultra                 -------------------- -------------------- --------------------- --------
                                   1.349706             1.427234              24,600,287       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.159454             2.342504                 293,584       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------
                                   2.019297             2.159454               1,310,545       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.761054             3.547042                 724,635       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------
                                   2.450480             2.761054               2,645,579       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.950763             2.432742                  90,044       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------
                                   1.797380             1.950763                 626,778       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.228823             1.307377                 199,160       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares               1.179526             1.228823                 925,850       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Capital &                 4.103407             4.673860                  15,630       1997
Income Fund                   -------------------- -------------------- --------------------- --------
                                   3.859950             4.103407                 152,550       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.591621             1.944023               6,919,494       1997
                              -------------------- -------------------- --------------------- --------
                                   1.428120             1.591621              26,974,645       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.368665             6.929751               1,480,026       1997
                              -------------------- -------------------- --------------------- --------
                                   4.790428             5.368665              11,209,254       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.441850             1.812541               2,947,714       1997
                              -------------------- -------------------- --------------------- --------
                                   1.327336             1.441850              12,376,864        1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.683525             1.837520                 498,827       1997
                              -------------------- -------------------- --------------------- --------
                                   1.509373             1.683525               2,239,000       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.319550             1.603211                 734,376       1997
                              -------------------- -------------------- --------------------- --------
                                   1.202752             1.319550               3,250,797       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                     1.774063             2.286799               1,186,761       1997
Company of America(R)         -------------------- -------------------- --------------------- --------
                                   1.588888             1.774063               4,423,281       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.231819             1.340756                  84,398       1997
Portfolio                     -------------------- -------------------- --------------------- --------
                                   1.148931             1.231819                 359,528       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.392601             9.050357                  33,173       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------
                                   6.921525             7.392601                 399,976       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.527479             6.194384                 108,967       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------
                                   5.086896             5.527479                 494,287       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors           10.899055            16.034807                  28,741       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------
                                  10.146674            10.899055                 248,216       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     14.989429            20.783760                 218,220       1997
Fund                          -------------------- -------------------- --------------------- --------
                                  13.111701            14.989429                 664,951       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.088171             3.870989                  62,008       1997
Growth Fund                   -------------------- -------------------- --------------------- --------
                                   2.839948             3.088171                 534,141       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.889720             3.016489               1,244,833       1997
Market Fund                   -------------------- -------------------- --------------------- --------
                                   2.810849             2.889720               6,170,419       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.462856             1.713248                 828,370       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------
                                   1.325887             1.462856               3,851,735       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  13.617267            18.186106                  93,488       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------
                                  12.145848            13.617267                 476,103       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.080033             3.853154               1,919,434       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------
                                   3.068913             3.080033               9,182,389       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.141231             1.508098               1,436,973       1997
Index Portfolio               -------------------- -------------------- --------------------- --------
                                   1.000000             1.141231               2,582,625       1996
- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>
    


<PAGE>   52



   
<TABLE>
                        CONDENSED FINANCIAL INFORMATION (CONTINUED)
<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                     <C>           <C> 
Seligman Growth                   10.738267            12.594278                 29,833       1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------
                                   9.776109            10.738267                206,422       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.170883             1.227171              1,061,646       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional          1.135922             1.170883                549,456       1996
Class
- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.180532             1.203968                867,768       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------
                                   1.108686             1.180532              6,337,264       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.217615             1.289527              1,164,252       1997
Class I                       -------------------- -------------------- ------------------ -----------
                                   1.114645             1.217615              5,552,808       1996
- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.70% of
     average net assets on December 31, 1995.

     Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
     Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderately Aggressive
     Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
     Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
     available January 19, 1998, and therefore unit value information is not
     available.
    


<PAGE>   53



   
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER IVB**................................................................0.70%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                      <C>           <C> 
American Century: Twentieth        4.764684             5.861569                 791,919       1997
Century Growth                -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.470941             1.743357               4,507,568       1997
Century Ultra                 -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.179785             2.340149                 124,227       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.906675             3.543503                 528,101       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.944631             2.430315                  78,659       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.235187             1.306062                  88,326       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Capital &                 4.129122             4.669162                  51,553       1997
Income Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.593598             1.942084               5,170,372       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.625043             6.922841               1,223,287       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.490435             1.810733               1,539,847       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.600133             1.835685                 781,703       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.384857             1.601612                 379,214       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                    1.8856367             2.284519                 318,963       1997
Company of America(R)         -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.244956             1.339418                  68,206       1997
Portfolio                     -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.657700             9.041322                  84,709       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.601851             6.188157                  51,594       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors           12.096565            16.018807                  21,209       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     16.371594            20.763040                  90,530       1997
Fund                          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.186800             3.867128                  19,388       1997
Growth Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.922740             3.013456                 364,874       1997
Market Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.524045             1.711539                 751,166       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  14.537708            18.167964                  65,920       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.040501             3.849306               1,809,222       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.231354             1.506599               1,151,075       1997
Index Portfolio               -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>
    

<PAGE>   54



   
<TABLE>
                        CONDENSED FINANCIAL INFORMATION (CONTINUED)

<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End        Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                     <C>           <C> 
Seligman Growth                   10.978958            12.581713                 25,438       1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.185040             1.225937                102,438       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional
Class
- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.190184             1.202766                811,683       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.266741             1.288241                990,793       1997
Class I                       -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.70% of
     average net assets on December 31, 1996.

     Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
     Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderately Aggressive
     Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
     Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
     available January 19, 1998, and therefore unit value information is not
     available.
    

<PAGE>   55



   
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER IVC**...............................................................0.70%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                        <C>         <C> 
American Century: Twentieth        4.771826             5.852797                   2,226       1997
Century Growth                -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.473146             1.740747                  39,473       1997
Century Ultra                 -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.183080             2.336617                     139       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.911030             3.538202                   4,553       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.237055             1.304091                  34,364       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.595986             1.939178                  51,788       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.633468             6.912488                   6,909       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.492668             1.808025                  36,399       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.602532             1.832937                   4,185       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.386931             1.599217                   9,482       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                     1.888461             2.281103                   3,811       1997
Company of America(R)         -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.246208             1.337415                     438       1997
Portfolio                     -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.669182             9.027786                     693       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.610319             6.178817                     117       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors          12.1146941            15.994835                     353       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     16.396107            20.731998                   2,085       1997
Fund                          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.191575             3.861342                     226       1997
Growth Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.927158             3.008908                   5,303       1997
Market Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.526328             1.708978                  19,355       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  14.559488            18.140786                   2,047       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.045061             3.843542                  15,376       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.233193             1.504352                  29,469       1997
Index Portfolio               -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>
    


<PAGE>   56



   
<TABLE>
                             CONDENSED FINANCIAL INFORMATION (CONTINUED)

<CAPTION>
                                 Accumulation         Accumulation          Number of
                                  Unit Value           Unit Value      Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                        <C>        <C> 
Seligman Growth                   10.995409            12.562888                    406        1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.187596             1.224087                  7,027       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional
Class
- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.191967             1.200967                  6,790       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.268639             1.286315                  8,712       1997
Class I                       -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.70% of
     average net assets on December 31, 1996. Tier IVc includes certain
     departments of a Member County that was previously converted to Tier IVc
     using the asset balance as of December 31, 1995.

     Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
     Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderately Aggressive
     Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
     Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
     available January 19, 1998, and therefore unit value information is not
     available.
    

<PAGE>   57



   
                   CONDENSED FINANCIAL INFORMATION (CONTINUED)

TIER V**..................................................................0.65%

<TABLE>
<CAPTION>
                                 Accumulation         Accumulation           Number of
                                  Unit Value           Unit Value        Accumulation Units
                                 At Beginning            At End          Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period        End Of The Period     Year
- ----------------------------- -------------------- -------------------- --------------------- --------
<S>                                <C>                  <C>                    <C>             <C> 
American Century: Twentieth        4.776599             5.869391               2,322,606       1997
Century Growth                -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
American Century: Twentieth        1.474619             1.745683              19,969,711       1997
Century Ultra                 -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Bond Fund of                   2.185294             2.343312                 753,555       1997
America(SM), Inc.             -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
The Dreyfus Third                  2.913941             3.548231               2,219,012       1997
Century Fund, Inc.            -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Evergreen                          1.949492             2.433557                 297,366       1997
Income and Growth Fund        -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Federated U.S. Government          1.238301             1.307818                 579,571       1997
Securities Fund: 2-5 years -  -------------------- -------------------- --------------------- --------
Institutional Shares
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Capital & Income          4.139531             4.675440                  61,610       1997
Fund                          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Contrafund                1.597582             1.944675              19,667,377       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Equity-Income Fund        5.639098             6.932074               8,086,997       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Magellan(R)Fund           1.494160             1.813149               6,992,191       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity OTC Portfolio             1.604136             1.838136               2,776,451       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
Fidelity Puritan Fund              1.388317             1.603749               2,031,661       1997
- ----------------------------- -------------------- -------------------- --------------------- --------
The Investment                     1.890348             2.287566               2,872,363       1997
Company of America(R)
- ----------------------------- -------------------- -------------------- --------------------- --------
MAS Funds Fixed Income             1.248067             1.341206                 277,396       1997
Portfolio                     -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)Growth                       7.676856             9.053391                 212,160       1997
Opportunities Fund-Class A    -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
MFS(R)High                         5.615972             6.196477                 418,967       1997
Income Fund- Class A          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Massachusetts Investors           12.126811            16.040180                 117,830       1997
Growth Stock Fund -           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                     16.412492            20.790728                 569,519       1997
Fund                          -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)                      3.194767             3.872287                 269,417       1997
Growth Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Nationwide(R)Money                 2.930108             3.017508               3,269,252       1997
Market Fund                   -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Neuberger & Berman                 1.527855             1.713822               4,309,283       1997
Guardian Fund, Inc.           -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Investors                  14.574047            18.192202                 377,276       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
Putnam Voyager                     3.048108             3.854445               6,307,757       1997
Fund-Class A                  -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
SEI Index Fund - S & P 500         1.234422             1.508603               5,095,657       1997
Index Portfolio               -------------------- -------------------- --------------------- --------

- ----------------------------- -------------------- -------------------- --------------------- --------
</TABLE>
    


<PAGE>   58


   

                   CONDENSED FINANCIAL INFORMATION (CONTINUED)
<TABLE>
<CAPTION>
                                 Accumulation         Accumulation        Number of
                                  Unit Value           Unit Value     Accumulation Units
                                 At Beginning            At End       Outstanding At The
   Underlying Mutual Fund          Of Period            Of Period       End Of The Period     Year
- ----------------------------- -------------------- -------------------- ------------------ -----------
<S>                                <C>                  <C>                    <C>            <C> 
Seligman Growth                   11.006405            12.598501                124,591       1997
Fund, Inc.-Class A            -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Short-Term Investments -           1.188793             1.227585                238,580       1997
Trust - Treasury              -------------------- -------------------- ------------------ -----------
Portfolio - Institutional
Class
- ----------------------------- -------------------- -------------------- ------------------ -----------
T. Rowe Price International        1.193159             1.204372              4,374,310       1997
Stock Fund(R)                 -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
Templeton Foreign Fund -           1.269907             1.289960              4,910,891       1997
Class I                       -------------------- -------------------- ------------------ -----------

- ----------------------------- -------------------- -------------------- ------------------ -----------
</TABLE>

*    Period from July 1, 1991 (the date Participant accounts of the NACo Program
     were transferred from the Nationwide DC Variable Account to the NACo
     Variable Account and the NACo Variable Account commenced operations
     exclusive to the NACo Program).

**   For Plans converted from a Variable Account Annual Expense Fee of 0.95% of
     average net assets to a Variable Account Annual Expense Fee of 0.65% of
     average net assets on December 31, 1996.

     Nationwide Professionally Managed Portfolios - The Aggressive Portfolio,
     Nationwide Professionally Managed Portfolios - The Conservative Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderate Portfolio,
     Nationwide Professionally Managed Portfolios - The Moderately Aggressive
     Portfolio, Nationwide Professionally Managed Portfolios - The Moderately
     Conservative Portfolio and NSAT - Nationwide Small Company Fund were first
     available January 19, 1998, and therefore unit value information is not
     available.
    


<PAGE>   59




                       STATEMENT OF ADDITIONAL INFORMATION
                                   MAY 1, 1998

                 GROUP FLEXIBLE FUND RETIREMENT CONTRACTS ISSUED
                         BY THE NACO VARIABLE ACCOUNT OF
                        NATIONWIDE LIFE INSURANCE COMPANY

This Statement of Additional Information is not a prospectus. It contains
information in addition to and more detailed than set forth the prospectus and
should be read in conjunction with the prospectus dated May 1, 1998. The
prospectus may be obtained from Nationwide Life Insurance Company, P.O. Box
16766, One Nationwide Plaza, Columbus, Ohio 43216, or by calling 1-800-545-4730,
(T.T.Y. 1-800-848-0833).

                                TABLE OF CONTENTS

                                                                           PAGE
                                                                           ----
General Information and History..............................................1
Services.....................................................................1
Purchase of Securities Being Offered ........................................1
Underwriters ................................................................2
Calculation of Performance ..................................................2
Annuity Payments.............................................................4
Financial Statements.........................................................5

GENERAL INFORMATION AND HISTORY

The Variable Account is a separate investment account of Nationwide Life
Insurance Company (the "Company"). The Company is a member of the Nationwide
Insurance Enterprise and all of the Company's common stock is owned by
Nationwide Financial Services, Inc. ("NFS"), a holding company. NFS has two
classes of common stock outstanding with different voting rights enabling
Nationwide Corporation (the holder of all of the outstanding Class B Common
Stock) to control NFS. Nationwide Corporation is a holding company as well. All
of its common stock is held by Nationwide Mutual Insurance Company (95.2%) and
Nationwide Mutual Fire Insurance Company (4.8%), the ultimate controlling
persons of Nationwide Insurance Enterprise.

SERVICES

The Company has responsibility for administration of the Contracts and the
Variable Account, maintaining records, including name, address, taxpayer
identification number, and other pertinent information for each Contract Owner
and the number and type of Contracts issued to each such Contract Owner and the
Contract Value of each Contract.

All assets of the Variable Account are held in custody for safekeeping by the
Company. The assets of each Sub-Account will be kept physically segregated and
held separate and apart from assets of other Sub-Accounts and from assets of any
other firm, person, or corporation. The Company will maintain a record of all
and redemption for shares of the Underlying Mutual Fund held in each
Sub-Account.

The Company, or affiliates of the Company, may have entered into agreements with
either the investment adviser or distributor for several of the Underlying
Mutual Funds. The agreements relate to administrative services furnished by the
Company or an affiliate of the Company and provide for an annual fee based on
the average aggregate net assets of the Variable Account (and other separate
accounts of the Company or life insurance company subsidiaries of the Company)
invested in particular Underlying Mutual Funds. These fees in no way affect the
Net Asset Value of the Underlying Mutual Funds or fees paid by the Contract
Owner.

The audited financial statements have been included herein in reliance upon the
reports of KPMG Peat Marwick LLP, independent certified public accountants, Two
Nationwide Plaza, Columbus, Ohio 43215, and upon the authority of said firm as
experts in accounting and auditing.

PURCHASE OF SECURITIES BEING OFFERED

The Contracts will be sold by licensed insurance agents in the states where the
Contracts may be lawfully sold. Such agents will be registered representatives
of broker-dealers registered under the Securities Exchange Act of 1934 who are
members of the National Association of Securities Dealers, Inc.




<PAGE>   60

For those Plans which provide this Contract and the Company's Group Fixed Fund
Retirement Contracts, the Contract Owner, or the Participant if the Plan so
provides, may exchange Accumulation Units between any Sub-Account of the
Variable Account and the deposit fund of the Group Fixed Fund Retirement
Contract. Exchanges from the deposit fund to any Sub-Account of the Variable
Account will be subject to the limitations of the Group Fixed Fund Retirement
Contract. Exchanges will be effective when received in good order at the Home
Office.

UNDERWRITERS

The Contracts, which are offered continuously, are distributed by Nationwide
Advisory Services, Inc. ("NAS"), One Nationwide Plaza, Columbus, Ohio 43215, a
wholly-owned subsidiary of the Company. No underwriting commissions are paid by
the Company to NAS.

CALCULATION OF PERFORMANCE

Any current yield quotations of the Nationwide Money Market Fund and the
Short-Term Investments Trust Treasury Portfolio Sub-Accounts, subject to Rule
482 of the Securities Act of 1933, shall consist of a seven calendar day
historical yield, carried at least to the nearest hundredth of a percent. The
yield will be calculated by determining the net change, exclusive capital
changes, in the value of a hypothetical pre-existing account having a balance of
one Accumulation Unit at the beginning of the base period, subtracting a
hypothetical charge reflecting deductions from Contract Owner accounts, and
dividing the net change in account value by the value of the account at the
beginning of the period to obtain a base period return, and multiplying the base
period return by (365/7) or (366/7) in a leap year. At December 31, 1997, the
Nationwide Money Market Fund and the Short-Term Investments Trust Treasury
Portfolio Sub-Accounts seven-day current yield were 4.23% and 3.91%
respectively. The Nationwide Money Market Fund and the Short-Term Investments
Trust Treasury Portfolio Sub-Accounts' seven-day effective yield is computed
similarly but includes the effect of assumed compounding on an annualized basis
of the current yield quotations of the Sub-Accounts, and at December 31, 1997
were 4.32% and 3.98% respectively.

The yield and effective yield will fluctuate daily. Actual yields will depend on
factors such as the type of instruments in the Sub-Accounts' portfolios,
portfolio quality and average maturity, changes in interest rates, and the
Sub-Accounts' expenses. Although the Sub-Account determines its yield on the
basis of a seven calendar day period, it may use a different time period on
occasion. There is no assurance that the yields quoted on any given occasion
will remain in effect for any period of time and there is no guarantee that the
Net Asset Values will remain constant. It should be noted that a Contract
Owner's investment in Nationwide Money Market Fund and the Short Term Investment
Trust Treasury Portfolio Sub-Account is not guaranteed or insured. Yields of
other money market funds may not be comparable if a different base period or
another method of calculation is used.

The Company may, from time to time, advertise several types of historical
performance of the Sub-Accounts. The Company may advertise for the Sub-Accounts
standardized "average annual total return," calculated in a manner prescribed by
the SEC, and nonstandardized "total return". "Average annual total return" will
show the percentage rate of return of a hypothetical initial investment of
$1,000 for the most recent one, five and ten year periods, or for a period
covering the time the Underlying Mutual Fund option has been available in the
Variable Account if the Underlying Mutual Fund option has not been available in
the Variable Account for any of the prescribed periods. THIS CALCULATION
REFLECTS THE DEDUCTION OF ALL APPLICABLE CHARGES MADE TO THE CONTRACTS EXCEPT
FOR PREMIUM TAXES, WHICH MAY BE IMPOSED BY CERTAIN STATES.

Nonstandardized "total return," calculated similar to standardized "average
annual total return," illustrates the percentage rate of return of a
hypothetical initial investment of $10,000 for the most recent one, five and ten
year periods, or for a period covering the time the Underlying Mutual Fund
option has been in existence. For those Underlying Mutual Fund options which
have not been held as Sub-Accounts for one of the prescribed periods, the
nonstandardized total return illustrations will show the investment performance
such Underlying Mutual Fund options would have achieved (reduced by the same
charges except the Participant Account Maintenance Charge and CDSC) had such
Underlying Mutual Fund options been available in the Variable Account for the
periods quoted. THE CDSC IS NOT REFLECTED BECAUSE THE CONTRACTS ARE DESIGNED FOR
LONG TERM INVESTMENT. THE CDSC, IF REFLECTED, WOULD DECREASE THE LEVEL OF
PERFORMANCE SHOWN. AN INITIAL INVESTMENT OF $10,000 IS ASSUMED BECAUSE THAT
AMOUNT MORE CLOSELY






<PAGE>   61

APPROXIMATES THE SIZE OF A TYPICAL CONTRACT THAN DOES THE $1,000 ASSUMPTION USED
IN CALCULATING THE STANDARDIZED AVERAGE ANNUAL TOTAL RETURN QUOTATIONS.

The standardized average annual total return and nonstandardized total return
quotations reflected are calculated as described in this section using
Underlying Mutual Fund performance for the period ended December 31, 1997.
However, the Company generally provides performance quotations on a more
frequent basis, the results of which could reflect better or worse results than
shown. The quotations and other comparative material advertised by the Company
are based upon historical earnings and are not intended to represent or
guarantee future results. A Contract Owner's or Participant's Account Value at
redemption may be more or less than the original cost.

                              NACO VARIABLE ACCOUNT
                           SERIES PERFORMANCE SUMMARY
                    STANDARDIZED AVERAGE ANNUAL TOTAL RETURN
                                  MONEY MARKET
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------
                                                             CURRENT YIELD PERIOD ENDING      EFFECTIVE YIELD PERIOD
                      SERIES OPTIONS                                   12/31/97                  ENDING 12/31/97
- ------------------------------------------------------------------------------------------------------------------------
<S>                                                                      <C>                           <C>  
Nationwide(R)Money Market Fund                                           4.23%                         4.32%
- ------------------------------------------------------------------------------------------------------------------------
Short-Term Investments Trust-Treasury Portfolio -                        3.91%                         3.98%
Institutional Class
- ------------------------------------------------------------------------------------------------------------------------
</TABLE>

                         SUB-ACCOUNT PERFORMANCE SUMMARY
                    STANDARDIZED AVERAGE ANNUAL TOTAL RETURN
                             OTHER THAN MONEY MARKET
<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------
                                                             1 YEAR TO     3 YEARS TO    5 YEARS TO     10 YEARS TO
                   SUB ACCOUNT OPTIONS                        12/31/97      12/31/97      12/31/97        12/31/97
- ----------------------------------------------------------------------------------------------------------------------
<S>                                                            <C>           <C>           <C>             <C>   
American Century: Twentieth Century Growth                     24.06%        19.33%        11.25%          14.17%
- ----------------------------------------------------------------------------------------------------------------------
American Century: Twentieth Century Ultra                      17.97%        22.44%        16.23%          20.66%
- ----------------------------------------------------------------------------------------------------------------------
The Bond Fund of America(SM), Inc.                              4.20%         9.12%         6.73%           8.52%
- ----------------------------------------------------------------------------------------------------------------------
The Dreyfus Third Century Fund, Inc.                           24.15%        27.71%        14.75%          14.98%
- ----------------------------------------------------------------------------------------------------------------------
Evergreen Income and Growth Fund                               20.40%        18.56%        11.58%          11.06%
- ----------------------------------------------------------------------------------------------------------------------
Federated U.S. Government Securities Fund: 2-5 years -          2.12%         5.81%         4.10%           6.29%
Institutional Shares
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Capital & Income Fund                                  9.62%        12.13%        10.60%          10.74%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity ContraFund                                            17.84%        24.86%        18.13%          21.80%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Equity-Income Fund                                    24.76%        25.47%        18.78%          15.47%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Magellan(R)Fund                                       21.40%        22.54%        17.27%          17.67%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity OTC Portfolio                                          4.87%        21.35%        13.14%          16.70%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Puritan Fund                                          17.19%        17.52%        14.63%          13.83%
- ----------------------------------------------------------------------------------------------------------------------
The Investment Company of America(R)                           24.58%        24.44%        16.19%          15.14%
- ----------------------------------------------------------------------------------------------------------------------
Massachusetts Investors Growth Stock Fund - Class A            42.75%        30.65%        18.51%          16.88%
- ----------------------------------------------------------------------------------------------------------------------
MAS Funds Fixed Income Portfolio                                4.57%         9.73%         6.95%           8.70%
- ----------------------------------------------------------------------------------------------------------------------
MFS(R)Growth Opportunities Fund-Class A                        18.12%        24.37%        16.06%          13.59%
- ----------------------------------------------------------------------------------------------------------------------
MFS(R)High Income Fund-Class A                                  7.78%        12.03%         9.99%           9.48%
- ----------------------------------------------------------------------------------------------------------------------
Nationwide(R)Fund                                              34.31%        28.99%        17.75%          16.42%
- ----------------------------------------------------------------------------------------------------------------------
Nationwide(R)Growth Fund                                       21.04%        21.70%        14.90%          13.75%
- ----------------------------------------------------------------------------------------------------------------------
Neuberger & Berman Guardian Fund, Inc.                         12.82%        20.39%        14.59%          16.27%
- ----------------------------------------------------------------------------------------------------------------------
Putnam Investors Fund-Class A                                  29.22%        28.92%        19.17%          16.19%
- ----------------------------------------------------------------------------------------------------------------------
Putnam Voyager Fund-Class A                                    20.79%        23.76%        17.28%          17.83%
- ----------------------------------------------------------------------------------------------------------------------
SEI Index Funds - S & P 500 Index Portfolio                    27.82%        28.83%        18.44%          16.48%
- ----------------------------------------------------------------------------------------------------------------------
Seligman Growth Fund, Inc.-Class A                             12.99%        20.43%        11.90%          13.51%
- ----------------------------------------------------------------------------------------------------------------------
T. Rowe Price International Stock Fund(R)                      -2.27%         7.71%        11.46%           9.41%
- ----------------------------------------------------------------------------------------------------------------------
Templeton Foreign Fund - Class I                                1.64%         9.68%        12.37%          11.31%
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>






<PAGE>   62

            SUB-ACCOUNT PERFORMANCE SUMMARY -- NACO VARIABLE ACCOUNT
                          NON-STANDARDIZED TOTAL RETURN

(The above return figures quoted below do not reflect the deduction of the
Participant Account Maintenance Charge or any applicable Contingent Deferred
Sales Charges)

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------
                                                              1 YEAR TO     3 YEARS TO    5 YEARS TO      10 YEARS TO
                    SUB ACCOUNT OPTIONS                        12/31/97      12/31/97      12/31/97         12/31/97
- ----------------------------------------------------------------------------------------------------------------------
<S>                                                             <C>           <C>            <C>             <C>   
American Century: Twentieth Century Growth                      28.06%        20.26%         11.77%          14.29%
- ----------------------------------------------------------------------------------------------------------------------
American Century: Twentieth Century Ultra                       21.97%        23.33%         16.66%          20.74%
- ----------------------------------------------------------------------------------------------------------------------
The Bond Fund of America(SM), Inc.                               8.20%        10.23%          7.34%           8.71%
- ----------------------------------------------------------------------------------------------------------------------
The Dreyfus Third Century(R)Fund, Inc.                          28.15%        28.52%         15.20%          15.09%
- ----------------------------------------------------------------------------------------------------------------------
Evergreen Income and Growth Fund                                24.40%        19.51%         12.09%          11.21%
- ----------------------------------------------------------------------------------------------------------------------
Federated U.S. Government Securities Fund: 2-5 years -           6.12%         6.99%          4.77%           6.52%
Institutional Shares
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Capital & Income Fund                                  13.62%        13.18%         11.13%          10.90%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Contrafund                                             21.84%        25.71%         18.54%          21.86%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Equity-Income Fund                                     28.76%        26.31%         19.18%          15.58%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Magellan(R)Fund                                        25.40%        23.42%         17.69%          17.76%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity OTC Portfolio                                           8.87%        22.25%         13.62%          16.80%
- ----------------------------------------------------------------------------------------------------------------------
Fidelity Puritan Fund                                           21.19%        18.48%         15.09%          13.96%
- ----------------------------------------------------------------------------------------------------------------------
The Investment Company of America(R)                            28.58%        25.29%         16.62%          15.26%
- ----------------------------------------------------------------------------------------------------------------------
Massachusetts Investors Growth Stock Fund - Class A             46.75%        31.43%         18.92%          16.98%
- ----------------------------------------------------------------------------------------------------------------------
MAS Funds Fixed Income Portfolio                                 8.57%        10.83%          7.56%           8.88%
- ----------------------------------------------------------------------------------------------------------------------
MFS(R)Growth Opportunities Fund-Class A                         22.12%        25.23%         16.50%          13.71%
- ----------------------------------------------------------------------------------------------------------------------
MFS(R)High Income Fund-Class A                                  11.78%        13.08%         10.53%           9.66%
- ----------------------------------------------------------------------------------------------------------------------
Nationwide(R)Fund                                               38.31%        29.78%         18.16%          16.52%
- ----------------------------------------------------------------------------------------------------------------------
Nationwide(R)Growth Fund                                        25.04%        22.60%         15.35%          13.87%
- ----------------------------------------------------------------------------------------------------------------------
Neuberger & Berman Guardian Fund, Inc.                          16.82%        21.31%         15.05%          16.37%
- ----------------------------------------------------------------------------------------------------------------------
Putnam Investors Fund-Class A                                   33.22%        29.72%         19.57%          16.29%
- ----------------------------------------------------------------------------------------------------------------------
Putnam Voyager Fund-Class A                                     24.79%        24.63%         17.70%          17.92%
- ----------------------------------------------------------------------------------------------------------------------
SEI Index Funds - S & P 500 Index Portfolio                     31.82%        29.63%         18.84%          16.58%
- ----------------------------------------------------------------------------------------------------------------------
Seligman Growth Fund, Inc.-Class A                              16.99%        21.34%         12.40%          13.64%
- ----------------------------------------------------------------------------------------------------------------------
T. Rowe Price International Stock Fund(R)                        1.73%         8.85%         11.97%           9.58%
- ----------------------------------------------------------------------------------------------------------------------
Templeton Foreign Fund - Class I                                 5.64%        10.78%         12.87%          11.46%
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

ANNUITY PAYMENTS

See "Distribution of Participant Accounts (Retirement Period)" located in the
prospectus.




<PAGE>   63

<PAGE>   1


- --------------------------------------------------------------------------------

                          INDEPENDENT AUDITORS' REPORT
                          ----------------------------

The Board of Directors of Nationwide Life Insurance Company and
  Contract Owners of NACo Variable Account:

     We have audited the accompanying statement of assets, liabilities and
contract owners' equity of NACo Variable Account as of December 31, 1997, and
the related statements of operations and changes in contract owners' equity for
each of the years in the two year period then ended. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits.

     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. Our
procedures include confirmation of securities owned as of December 31, 1997, by
correspondence with the transfer agents of the underlying mutual funds. An
audit also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.

     In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of NACo Variable Account as of
December 31, 1997, and the results of its operations and its changes in
contract owners' equity for each of the years in the two year period then ended
in conformity with generally accepted accounting principles.




                                                        KPMG Peat Marwick LLP

Columbus, Ohio
February 6, 1998



<PAGE>   2

                              NACO VARIABLE ACCOUNT

          STATEMENT OF ASSETS, LIABILITIES AND CONTRACT OWNERS' EQUITY

                                DECEMBER 31, 1997


<TABLE>
<S>                                                                                                         <C>
ASSETS:
   Investments at market value:
      American Century: Twentieth Century Growth Fund (ACTCGro)
         4,291,370 shares (cost $88,601,874) .............................................................  $   103,035,805
      American Century: Twentieth Century Ultra Fund (ACTCUltra)
         8,004,428 shares (cost $216,934,024) ............................................................      218,520,874
      The Bond Fund of America(SM), Inc. (BdFdAm)
         1,062,195 shares (cost $14,617,410) .............................................................       14,870,732
      The Dreyfus Third Century Fund, Inc. (Dry3dCen)
         5,002,424 shares (cost $45,056,483) .............................................................       52,575,475
      Evergreen Income and Growth Fund - Class Y (EvIncGro)
         168,957 shares (cost $3,368,230) ................................................................        4,043,133
      Federated U.S. Government Securities Fund: 2-5 Years -
      Institutional shares (FedUSGvt)
         404,319 shares (cost $4,264,947) ................................................................        4,297,907
      Fidelity Capital & Income Fund (FidCapInc)
         265,562 shares (cost $2,237,282) ................................................................        2,658,279
      Fidelity Contrafund (FidContr)
         6,884,041 shares (cost $270,249,054) ............................................................      321,002,831
      Fidelity Equity-Income Fund (FidEqInc)
         6,743,244 shares (cost $239,634,342) ............................................................      353,413,444
      Fidelity Magellan(R) Fund (FidMgln)
         1,306,291 shares (cost $104,252,765) ............................................................      124,450,301
      Fidelity OTC Portfolio (FidOTC)
         941,944 shares (cost $31,926,103) ...............................................................       31,508,034
      Fidelity Puritan(R) Fund (FidPurtn)
         1,634,297 shares (cost $28,386,708) .............................................................       31,672,685
      The Investment Company of America(R) (InvCoAm)
         2,554,066 shares (cost $57,497,295) .............................................................       72,152,374
      MAS Funds - Fixed Income Portfolio (MASFIP)
         226,135 shares (cost $2,700,953) ................................................................        2,695,530
      MFS(R) Growth Opportunities Fund - Class A (MFSGrOpp)
         1,146,474 shares (cost $13,461,885) .............................................................       15,958,923
      MFS(R) High Income Fund - Class A (MFSHiInc)
         2,601,403 shares (cost $14,193,356) .............................................................       14,385,760
      Massachusetts Investors Growth Stock Fund - Class A (MFSGrStk)
         1,031,758 shares (cost $11,575,941) .............................................................       12,814,439
      Nationwide(R) Fund (NWFund)
         3,363,858 shares (cost $68,052,739) .............................................................       89,108,593
</TABLE>


<PAGE>   3

<TABLE>
<S>                                                                                                         <C>
      Nationwide(R) Growth Fund (NWGroFd)
         523,849 shares (cost $6,208,414) ................................................................        7,669,144
      Nationwide(R) Money Market Fund (NWMyMkt)
         44,019,657 shares (cost $44,019,657) ............................................................       44,019,657
      Neuberger & Berman Guardian Fund (NBGuard)
         1,546,964 shares (cost $40,472,926) .............................................................       40,066,366
      Putnam Investors Fund - Class A (PutInvFd)
         5,331,304 shares (cost $50,456,063) .............................................................       59,923,856
      Putnam Voyager Fund - Class A (PutVoyFd)
         10,519,384 shares (cost $161,006,964) ...........................................................      200,394,263
      SEI Index Funds - S&P 500 Index Portfolio (SEI500lx)
         1,891,075 shares (cost $50,913,658) .............................................................       57,961,448
      Seligman Growth Fund, Inc. - Class A (SelGroFd)
         1,596,635 shares (cost $9,021,423) ..............................................................        9,707,543
      Short-Term Investments Trust - Treasury Portfolio - Institutional Class (AIMTreas)
         4,160,006 shares (cost $4,160,006) ..............................................................        4,160,006
      T. Rowe Price International Funds, Inc. - International Stock Fund(R) (TRIntStk)
         2,136,462 shares (cost $31,045,917) .............................................................       28,671,326
      Templeton Foreign Fund - Class I (TemForFd)
         4,876,616 shares (cost $50,264,551) .............................................................       48,522,327
                                                                                                              -------------
            Total investments ............................................................................    1,970,261,055
   Accounts receivable ...................................................................................          599,224
                                                                                                              -------------
            Total assets .................................................................................    1,970,860,279
ACCOUNTS PAYABLE .........................................................................................           66,032
                                                                                                              -------------
CONTRACT OWNERS' EQUITY (NOTE 4) .........................................................................  $ 1,970,794,247
                                                                                                              =============
</TABLE>

See accompanying notes to financial statements.

<PAGE>   4

                             NACO VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996
<TABLE>
<CAPTION>
                                                                    TOTAL                           ACTCGRO
                                                       --------------   -------------     -----------     -----------
                                                            1997             1996            1997             1996
                                                       --------------   -------------     -----------     -----------
<S>                                                    <C>              <C>               <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends ...............................   $   21,526,606      18,399,398              -        1,237,485
Mortality and expense charges (note 2) .............       (8,687,459)     (6,124,188)       (597,743)       (773,702)
Administration charge (note 2)
      Tier I .......................................       (3,835,645)     (2,597,055)       (241,160)       (321,103)
      Tier II ......................................       (1,270,800)       (836,073)       (106,219)       (117,371)
      Tier III .....................................         (639,538)       (432,408)        (42,450)        (57,199)
      Tier IV ......................................         (235,537)       (589,120)        (19,525)        (69,950)
      Tier V .......................................         (354,719)             -          (23,235)             -
                                                       --------------   -------------     -----------     -----------
  Net investment activity ..........................        6,502,908       7,820,554      (1,030,332)       (101,840)
Proceeds from mutual fund shares sold ..............      390,188,601     129,158,279      76,437,716      21,718,951
Cost of mutual fund shares sold ....................     (330,761,963)   (119,175,064)    (77,270,118)    (19,610,019)
                                                       --------------   -------------     -----------     -----------
  Realized gain (loss) on investments ..............       59,426,638       9,983,215        (832,402)      2,108,932
Change in unrealized gain (loss) on investments ....      133,294,095      79,007,949      13,050,693      15,963,893
                                                       --------------   -------------     -----------     -----------
  Net gain (loss) on investments ...................      192,720,733      88,991,164      12,218,291      18,072,825
                                                       --------------   -------------     -----------     -----------
Reinvested capital gains ...........................      158,561,197      78,266,596      15,163,270       1,663,504
                                                       --------------   -------------     -----------     -----------
    Net increase (decrease) in contract owners'
      equity resulting from operations .............      357,784,838     175,078,314      26,351,229      19,634,489
                                                       --------------   -------------     -----------     -----------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ..................................      428,935,376     318,493,085       9,656,125      16,288,513
Transfers between funds ............................               -               -      (67,825,676)    (26,081,481)
Redemptions ........................................     (222,355,417)    (71,502,064)    (15,764,285)     (8,867,521)
Adjustments to maintain reserves ...................         (104,195)       (127,810)          1,467          (8,235)
                                                       --------------   -------------     -----------     -----------
    Net equity transactions ........................      206,475,764     246,863,211     (73,932,369)    (18,668,724)
Net change in contract owners' equity ..............      564,260,602     421,941,525     (47,581,140)        965,765
Contract owners' equity beginning of period ........    1,406,533,645     984,592,120     150,619,441     149,653,676
                                                       --------------   -------------     -----------     -----------
Contract owners' equity end of period ..............   $1,970,794,247   1,406,533,645     103,038,301     150,619,441
                                                       ==============   =============     ===========     ===========
</TABLE>
<TABLE>
<CAPTION>
                                                                  ACTCULTRA                        BDFDAM
                                                       --------------   ------------     -----------     -----------
                                                            1997            1996             1997            1996
                                                       --------------   ------------     -----------     -----------
<S>                                                    <C>              <C>              <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends ...............................   $       83,084             -        1,010,649         983,502
Mortality and expense charges (note 2) .............         (953,698)      (648,777)        (71,217)        (68,410)
Administration charge (note 2)
      Tier I .......................................         (405,576)      (271,468)        (32,333)        (31,741)
      Tier II ......................................         (141,718)       (87,166)        (10,968)         (8,216)
      Tier III .....................................          (62,578)       (43,731)         (5,391)         (4,757)
      Tier IV ......................................          (28,453)       (66,121)         (1,857)         (5,977)
      Tier V .......................................          (45,144)            -           (2,386)             -
                                                       --------------   ------------     -----------     -----------
  Net investment activity ..........................       (1,554,083)    (1,117,263)        886,497         864,401
Proceeds from mutual fund shares sold ..............       30,918,833     10,123,449       6,105,619       3,918,729
Cost of mutual fund shares sold ....................      (20,795,085)    (7,647,599)     (5,779,601)     (4,170,224)
                                                       --------------   ------------     -----------     -----------
  Realized gain (loss) on investments ..............       10,123,748      2,475,850         326,018        (251,495)
Change in unrealized gain (loss) on investments ....      (17,363,508)     5,194,710         (75,230)        120,398
                                                       --------------   ------------     -----------     -----------
  Net gain (loss) on investments ...................       (7,239,760)     7,670,560         250,788        (131,097)
                                                       --------------   ------------     -----------     -----------
Reinvested capital gains ...........................       44,171,059      8,455,551              -               -
                                                       --------------   ------------     -----------     -----------
    Net increase (decrease) in contract owners'
      equity resulting from operations .............       35,377,216     15,008,848       1,137,285         733,304
                                                       --------------   ------------     -----------     -----------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ..................................       53,715,959     44,415,944       2,197,440       2,665,962
Transfers between funds ............................        3,392,831       (123,456)       (571,835)     (1,815,612)
Redemptions ........................................      (23,610,763)    (9,988,739)     (1,874,029)     (1,020,041)
Adjustments to maintain reserves ...................          (32,791)         4,505            (934)           (388)
                                                       --------------   ------------     -----------     -----------
    Net equity transactions ........................       33,465,236     34,308,254        (249,358)       (170,079)
Net change in contract owners' equity ..............       68,842,452     49,317,102         887,927         563,225
Contract owners' equity beginning of period ........      149,650,009    100,332,907      13,981,906      13,418,681
                                                       --------------   ------------     -----------     -----------
Contract owners' equity end of period ..............   $  218,492,461    149,650,009      14,869,833      13,981,906
                                                       ==============   ============     ===========     ===========
</TABLE>



<PAGE>   5

                             NACo VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996
<TABLE>
<CAPTION>
                                                                       Dry3dCen                        EvincGro
                                                             ------------    ------------    ------------    ------------
                                                                 1997            1996            1997            1996
                                                             ------------    ------------    ------------    ------------
<S>                                                          <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends .....................................   $     91,287          58,249         195,572         230,814
Mortality and expense charges (note 2) ...................       (221,903)       (128,394)        (21,028)        (22,935)
Administration charge (note 2)
      Tier I .............................................        (97,392)        (55,900)         (9,235)         (9,315)
      Tier II ............................................        (34,054)        (16,664)         (2,503)         (2,088)
      Tier III ...........................................        (11,626)         (7,707)         (1,203)         (1,899)
      Tier IV ............................................         (7,396)        (13,044)           (764)         (2,724)
      Tier V .............................................         (9,978)             -           (1,117)             -
                                                             ------------    ------------    ------------    ------------
  Net investment activity ................................       (291,062)       (163,460)        159,722         191,853
Proceeds from mutual fund shares sold ....................      4,764,654       2,082,457       1,435,669         812,536
Cost of mutual fund shares sold ..........................     (3,479,290)     (1,902,636)     (1,298,478)       (810,548)
                                                             ------------    ------------    ------------    ------------
  Realized gain (loss) on investments ....................      1,285,364         179,821         137,191           1,988
Change in unrealized gain (loss) on investments ..........      5,489,938       1,051,717         361,146         299,106
                                                             ------------    ------------    ------------    ------------
  Net gain (loss) on investments .........................      6,775,302       1,231,538         498,337         301,094
                                                             ------------    ------------    ------------    ------------
Reinvested capital gains .................................      4,107,891       4,062,877         250,452              -
                                                             ------------    ------------    ------------    ------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ...................     10,592,131       5,130,955         908,511         492,947
                                                             ------------    ------------    ------------    ------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ........................................      9,531,871       4,367,438         219,542         263,265
Transfers between funds ..................................      6,920,263       1,020,985        (890,063)       (690,152)
Redemptions ..............................................     (4,743,489)     (1,289,248)       (615,031)       (236,697)
Adjustments to maintain reserves .........................         (2,888)         (1,444)           (227)            (57)
                                                             ------------    ------------    ------------    ------------
    Net equity transactions ..............................     11,705,757       4,097,731      (1,285,779)       (663,641)
Net change in contract owners' equity ....................     22,297,888       9,228,686        (377,268)       (170,694)
Contract owners' equity beginning of period ..............     30,274,825      21,046,139       4,420,173       4,590,867
                                                             ------------    ------------    ------------    ------------
Contract owners' equity end of period ....................   $ 52,572,713      30,274,825       4,042,905       4,420,173
                                                             ============    ============    ============    ============
</TABLE>
<TABLE>
<CAPTION>
                                                                   FedUSGvt                        FidCapInc
                                                         ------------    -------------   -------------   -------------
                                                             1997            1996            1997            1996
                                                         ------------    -------------   -------------   -------------
<S>                                                      <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends .................................   $    209,493          165,458         200,858         254,679
Mortality and expense charges (note 2) ...............        (18,574)         (15,988)        (14,160)        (15,511)
Administration charge (note 2)
      Tier I .........................................         (7,959)          (6,388)         (5,604)         (5,478)
      Tier II ........................................         (2,671)          (1,708)         (1,301)         (1,341)
      Tier III .......................................           (799)            (702)         (1,998)         (2,553)
      Tier IV ........................................           (688)          (2,234)           (614)         (1,397)
      Tier V .........................................         (1,002)              -             (434)             -
                                                         ------------    -------------   -------------   -------------
  Net investment activity ............................        177,800          138,438         176,747         228,399
Proceeds from mutual fund shares sold ................      3,311,692        1,121,910         708,617         402,846
Cost of mutual fund shares sold ......................     (3,290,687)      (1,104,963)       (510,739)       (303,343)
                                                         ------------    -------------   -------------   -------------
  Realized gain (loss) on investments ................         21,005           16,947         197,878          99,503
Change in unrealized gain (loss) on investments ......         34,443          (74,664)         (9,038)        (32,719)
                                                         ------------    -------------   -------------   -------------
  Net gain (loss) on investments .....................         55,448          (57,717)        188,840          66,784
                                                         ------------    -------------   -------------   -------------
Reinvested capital gains .............................             -                -               -               -
                                                         ------------    -------------   -------------   -------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ...............        233,248           80,721         365,587         295,183
                                                         ------------    -------------   -------------   -------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ....................................        845,763          917,785              13              79
Transfers between funds ..............................        373,832          (15,253)       (236,823)       (206,511)
Redemptions ..........................................       (638,843)        (302,046)       (447,420)       (151,301)
Adjustments to maintain reserves .....................           (213)            (236)           (261)           (258)
                                                         ------------    -------------   -------------   -------------
    Net equity transactions ..........................        580,539          600,250        (684,491)       (357,991)
Net change in contract owners' equity ................        813,787          680,971        (318,904)        (62,808)
Contract owners' equity beginning of period ..........      3,483,920        2,802,949       2,976,924       3,039,732
                                                         ------------    -------------   -------------   -------------
Contract owners' equity end of period ................   $  4,297,707        3,483,920       2,658,020       2,976,924
                                                         ============    =============   =============   =============
</TABLE>


                                                                     (Continued)



<PAGE>   6

                             NACo VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996
<TABLE>
<CAPTION>
                                                                      FidContr                         FidEqInc
                                                             ------------    ------------    ------------    ------------
                                                                 1997            1996            1997            1996
                                                             ------------    ------------    ------------    ------------
<S>                                                          <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends .....................................   $  2,195,540       1,729,074       6,194,440       5,475,347
Mortality and expense charges (note 2) ...................     (1,359,850)       (798,784)     (1,565,778)     (1,122,012)
Administration charge (note 2)
      Tier I .............................................       (616,290)       (344,719)       (659,522)       (446,967)
      Tier II ............................................       (203,894)       (114,869)       (215,189)       (139,206)
      Tier III ...........................................        (95,933)        (53,673)       (143,887)        (98,535)
      Tier IV ............................................        (39,669)        (73,089)        (32,619)       (114,864)
      Tier V .............................................        (48,345)             -          (72,789)             -
                                                             ------------    ------------    ------------    ------------
  Net investment activity ................................       (168,441)        343,940       3,504,656       3,553,763
Proceeds from mutual fund shares sold ....................     21,045,430       1,366,015      28,097,646       2,277,100
Cost of mutual fund shares sold ..........................    (13,726,446)     (1,138,648)    (13,468,143)     (1,372,592)
                                                             ------------    ------------    ------------    ------------
  Realized gain (loss) on investments ....................      7,318,984         227,367      14,629,503         904,508
Change in unrealized gain (loss) on investments ..........     19,495,166      16,820,570      46,925,897      25,291,931
                                                             ------------    ------------    ------------    ------------
  Net gain (loss) on investments .........................     26,814,150      17,047,937      61,555,400      26,196,439
                                                             ------------    ------------    ------------    ------------
Reinvested capital gains .................................     27,727,162      12,840,593      13,064,496      10,075,492
                                                             ------------    ------------    ------------    ------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ...................     54,372,871      30,232,470      78,124,552      39,825,694
                                                             ------------    ------------    ------------    ------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ........................................     80,513,062      56,201,369      50,674,836      37,458,833
Transfers between funds ..................................     17,826,645      10,119,538      11,399,955       1,709,515
Redemptions ..............................................    (33,838,679)     (8,109,140)    (39,688,848)     (9,799,106)
Adjustments to maintain reserves .........................        (25,668)        (82,591)         (5,107)        (10,973)
                                                             ------------    ------------    ------------    ------------
    Net equity transactions ..............................     64,475,360      58,129,176      22,380,836      29,358,269
Net change in contract owners' equity ....................    118,848,231      88,361,646     100,505,388      69,183,963
Contract owners' equity beginning of period ..............    202,139,639     113,777,993     252,903,435     183,719,472
                                                             ------------    ------------    ------------    ------------
Contract owners' equity end of period ....................   $320,987,870     202,139,639     353,408,823     252,903,435
                                                             ============    ============    ============    ============
</TABLE>
<TABLE>
<CAPTION>
                                                                      FidMgIn                          FidOTC
                                                            ------------    -------------   -------------   -------------
                                                                1997            1996             1997           1996
                                                            ------------    -------------   -------------   -------------
<S>                                                         <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends ....................................   $  1,505,116        1,231,059              -           23,360
Mortality and expense charges (note 2) ..................       (556,391)        (470,560)       (130,795)        (45,939)
Administration charge (note 2)
      Tier I ............................................       (265,730)        (210,832)        (56,929)        (18,847)
      Tier II ...........................................        (82,339)         (67,570)        (17,458)         (5,450)
      Tier III ..........................................        (40,641)         (30,164)         (8,619)         (2,930)
      Tier IV ...........................................        (14,355)         (40,626)         (3,645)         (5,320)
      Tier V ............................................        (16,376)              -           (6,672)             -
                                                            ------------    -------------   -------------   -------------
  Net investment activity ...............................        529,284          411,307        (224,118)        (55,126)
Proceeds from mutual fund shares sold ...................     12,485,988        9,511,017       7,535,213       5,210,061
Cost of mutual fund shares sold .........................     (9,950,443)      (9,021,392)     (6,716,721)     (4,935,771)
                                                            ------------    -------------   -------------   -------------
  Realized gain (loss) on investments ...................      2,535,545          489,625         818,492         274,290
Change in unrealized gain (loss) on investments .........     15,085,951       (5,107,582)       (488,087)        192,680
                                                            ------------    -------------   -------------   -------------
  Net gain (loss) on investments ........................     17,621,496       (4,617,957)        330,405         466,970
                                                            ------------    -------------   -------------   -------------
Reinvested capital gains ................................      6,362,186       13,496,407       2,202,654       1,432,109
                                                            ------------    -------------   -------------   -------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ..................     24,512,966        9,289,757       2,308,941       1,843,953
                                                            ------------    -------------   -------------   -------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners .......................................     25,481,895       31,416,476      11,403,571       5,657,606
Transfers between funds .................................     (7,601,758)     (21,447,207)      7,515,284       2,619,455
Redemptions .............................................    (13,965,007)      (6,185,751)     (3,842,544)       (953,105)
Adjustments to maintain reserves ........................         (3,444)          (3,719)         (3,592)          2,639
                                                            ------------    -------------   -------------   -------------
    Net equity transactions .............................      3,911,686        3,779,799      15,072,719       7,326,595
Net change in contract owners' equity ...................     28,424,652       13,069,556      17,381,660       9,170,548
Contract owners' equity beginning of period .............     96,022,426       82,952,870      14,122,665       4,952,117
                                                            ------------    -------------   -------------   -------------
Contract owners' equity end of period ...................   $124,447,078       96,022,426      31,504,325      14,122,665
                                                            ============    =============   =============   =============
</TABLE>


<PAGE>   7

                             NACo VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996

<TABLE>
<CAPTION>
                                                                       FIDPURTN                        INVCOAM
                                                             ------------    ------------    ------------    ------------
                                                                 1997            1996            1997            1996
                                                             ------------    ------------    ------------    ------------
<S>                                                          <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
  Reinvested dividends ..................................... $  1,002,542         663,018       1,117,268         858,735
  Mortality and expense charges (note 2) ...................     (137,123)        (92,533)       (310,471)       (201,765)
  Administration charge (note 2)
      Tier I .............................................        (66,667)        (42,011)       (147,489)        (98,152)
      Tier II ............................................        (21,034)        (14,101)        (56,789)        (31,791)
      Tier III ...........................................         (8,864)         (4,836)        (20,464)        (10,503)
      Tier IV ............................................         (3,289)         (8,068)         (5,858)        (14,185)
      Tier V .............................................         (4,128)             -           (8,057)             -
                                                             ------------    ------------    ------------    ------------
  Net investment activity ................................        761,437         501,469         568,140         502,339
  Proceeds from mutual fund shares sold ....................    3,662,742         962,001       4,672,687         675,337
  Cost of mutual fund shares sold ..........................   (2,886,331)       (865,169)     (2,891,566)       (513,445)
                                                             ------------    ------------    ------------    ------------
  Realized gain (loss) on investments ....................        776,411          96,832       1,781,121         161,892
  Change in unrealized gain (loss) on investments ..........    2,156,757         169,722       6,778,676       4,136,181
                                                             ------------    ------------    ------------    ------------
  Net gain (loss) on investments .........................      2,933,168         266,554       8,559,797       4,298,073
                                                             ------------    ------------    ------------    ------------
  Reinvested capital gains .................................    1,480,106       1,666,308       6,012,594       1,928,126
                                                             ------------    ------------    ------------    ------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ...................      5,174,711       2,434,331      15,140,531       6,728,538
                                                             ------------    ------------    ------------    ------------
EQUITY TRANSACTIONS:
  Purchase payments received from
  contract owners ........................................      8,122,684       7,953,081      14,055,579      10,683,322
  Transfers between funds ..................................      359,606      (1,017,005)      2,266,399         378,502
  Redemptions ..............................................   (3,573,534)       (916,941)     (7,025,850)     (1,818,340)
  Adjustments to maintain reserves .........................         (346)         (2,681)           (636)         (1,655)
                                                             ------------    ------------    ------------    ------------
    Net equity transactions ..............................      4,908,410       6,016,454       9,295,492       9,241,829
Net change in contract owners' equity ....................     10,083,121       8,450,785      24,436,023      15,970,367
Contract owners' equity beginning of period ..............     21,589,381      13,138,596      47,716,024      31,745,657
                                                             ------------    ------------    ------------    ------------
Contract owners' equity end of period ....................   $ 31,672,502      21,589,381      72,152,047      47,716,024
                                                             ============    ============    ============    ============
</TABLE>
<TABLE>
<CAPTION>
                                                                          MASFIP                         MFSGROPP
                                                               ------------    -------------   -------------   -------------
                                                                   1997             1996            1997            1996
                                                               ------------    -------------   -------------   -------------
<S>                                                            <C>              <C>            <C>             <C>
INVESTMENT ACTIVITY:
  Reinvested dividends .......................................   $  138,468           80,179              -               -
  Mortality and expense charges (note 2) .....................      (10,147)          (5,596)        (81,246)        (74,504)
  Administration charge (note 2)
      Tier I ...............................................         (5,562)          (2,333)        (36,299)        (32,153)
      Tier II ..............................................         (1,154)            (809)        (11,776)         (9,036)
      Tier III .............................................           (317)            (322)         (6,917)         (7,134)
      Tier IV ..............................................           (281)            (582)         (2,083)         (6,237)
      Tier V ...............................................           (387)              -           (2,838)             -
                                                               ------------    -------------   -------------   -------------
  Net investment activity ..................................        120,620           70,537        (141,159)       (129,064)
  Proceeds from mutual fund shares sold ......................    1,286,155          507,874       2,859,690       1,150,785
  Cost of mutual fund shares sold ............................   (1,260,770)        (513,015)     (2,016,264)       (948,141)
                                                               ------------    -------------   -------------   -------------
  Realized gain (loss) on investments ......................         25,385           (5,141)        843,426         202,644
  Change in unrealized gain (loss) on investments ............       (5,429)             991         547,661         996,452
                                                               ------------    -------------   -------------   -------------
  Net gain (loss) on investments ...........................         19,956           (4,150)      1,391,087       1,199,096
                                                               ------------    -------------   -------------   -------------
  Reinvested capital gains ...................................       35,341           15,684       1,975,637       1,657,280
                                                               ------------    -------------   -------------   -------------
    Net increase (decrease) in contract owners'
      equity resulting from operations .....................        175,917           82,071       3,225,565       2,727,312
                                                               ------------    -------------   -------------   -------------
EQUITY TRANSACTIONS:
  Purchase payments received from
  contract owners ..........................................        796,916          757,253         289,620         323,809
  Transfers between funds ....................................      552,003          238,058        (778,278)       (372,651)
  Redemptions ................................................     (388,815)         (51,714)     (2,103,012)       (840,556)
  Adjustments to maintain reserves ...........................          122              (20)        (13,012)        (10,408)
                                                               ------------    -------------   -------------   -------------
    Net equity transactions ................................        960,226          943,577      (2,604,682)       (899,806)
Net change in contract owners' equity ......................      1,136,143        1,025,648         620,883       1,827,506
Contract owners' equity beginning of period ................      1,559,535          533,887      15,338,362      13,510,856
                                                               ------------    -------------   -------------   -------------
Contract owners' equity end of period ......................   $  2,695,678        1,559,535      15,959,245      15,338,362
                                                               ============    =============   =============   =============
</TABLE>

                                                                     (Continued)


<PAGE>   8

                             NACo VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996

<TABLE>
<CAPTION>
                                                                       MFSHIINC                        MFSGRSTK
                                                             ------------    -------------   -------------   -------------
                                                                 1997            1996             1997           1996
                                                             ------------    -------------   -------------   -------------
<S>                                                          <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
  Reinvested dividends ..................................... $  1,110,356         889,431           5,750              -
  Mortality and expense charges (note 2) ...................      (64,630)        (52,543)        (60,114)        (48,355)
  Administration charge (note 2)
      Tier I ...............................................      (27,160)        (22,596)        (25,523)        (19,892)
      Tier II ..............................................       (8,510)         (5,087)         (8,400)         (5,932)
      Tier III .............................................       (4,958)         (3,885)         (5,187)         (3,649)
      Tier IV ..............................................       (1,712)         (5,842)         (1,546)         (5,102)
      Tier V ...............................................       (3,381)             -           (2,624)             -
                                                             ------------    ------------    ------------    ------------
   Net investment activity .................................    1,000,005         799,478         (97,644)        (82,930)
  Proceeds from mutual fund shares sold ....................   11,436,316       4,588,314       4,936,847       1,966,038
  Cost of mutual fund shares sold ..........................  (10,796,798)     (4,584,436)     (4,951,950)     (1,887,331)
                                                             ------------    ------------    ------------    ------------
  Realized gain (loss) on investments ......................      639,518           3,878         (15,103)         78,707
  Change in unrealized gain (loss) on investments ..........     (181,828)        309,388       2,506,771        (849,763)
                                                             ------------    ------------    ------------    ------------
  Net gain (loss) on investments ...........................      457,690         313,266       2,491,668        (771,056)
                                                             ------------    ------------    ------------    ------------
  Reinvested capital gains .................................           -               -        1,959,714       2,673,340
                                                             ------------    ------------    ------------    ------------
    Net increase (decrease) in contract owners'
      equity resulting from operations .....................    1,457,695       1,112,744       4,353,738       1,819,354
                                                             ------------    ------------    ------------    ------------
EQUITY TRANSACTIONS:
  Purchase payments received from
  contract owners ..........................................    2,868,284       1,750,588       1,918,046       1,557,760
  Transfers between funds ..................................      346,011        (516,810)     (3,240,441)        525,257
  Redemptions ..............................................   (1,335,492)       (693,668)     (1,447,659)       (513,838)
  Adjustments to maintain reserves .........................        1,475          (1,252)          1,016            (695)
                                                             ------------    ------------    ------------    ------------
    Net equity transactions ................................    1,880,278         538,858      (2,769,038)      1,568,484
  Net change in contract owners' equity ....................    3,337,973       1,651,602       1,584,700       3,387,838
  Contract owners' equity beginning of period ..............   11,049,325       9,397,723      11,230,813       7,842,975
                                                             ------------    ------------    ------------    ------------
Contract owners' equity end of period ...................... $ 14,387,298      11,049,325      12,815,513      11,230,813
                                                             ============    ============    ============    ============
</TABLE>
<TABLE>
<CAPTION>
                                                                    NWFUND                          NWGROFD
                                                         ------------    -------------   -------------   -------------
                                                             1997             1996            1997           1996
                                                         ------------    -------------   -------------   -------------
<S>                                                      <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
  Reinvested dividends ................................. $    858,226          665,218          60,952          73,925
  Mortality and expense charges (note 2) ...............     (330,998)        (197,452)        (38,660)        (34,864)
  Administration charge (note 2)
      Tier I ...........................................     (148,673)         (83,411)        (17,881)        (14,949)
      Tier II ..........................................      (47,277)         (30,586)         (6,779)         (6,067)
      Tier III .........................................      (25,296)         (11,762)         (2,338)         (1,259)
      Tier IV ..........................................       (9,148)         (18,775)           (622)         (3,428)
      Tier V ...........................................      (12,503)              -           (1,460)             -
                                                         ------------    -------------   -------------   -------------
    Net investment activity ............................      284,331          323,232          (6,788)         13,358
  Proceeds from mutual fund shares sold ................    6,266,837        2,896,804       1,515,017         589,678
  Cost of mutual fund shares sold ......................   (3,680,205)      (2,273,962)       (992,381)       (443,098)
                                                         ------------    -------------   -------------   -------------
    Realized gain (loss) on investments ................    2,586,632          622,842         522,636         146,580
  Change in unrealized gain (loss) on investments ......   13,332,389        4,317,064         283,755         350,942
                                                         ------------    -------------   -------------   -------------
    Net gain (loss) on investments .....................   15,919,021        4,939,906         806,391         497,522
                                                         ------------    -------------   -------------   -------------
  Reinvested capital gains .............................    4,357,194        2,639,185         928,742         474,821
                                                         ------------    -------------   -------------   -------------
    Net increase (decrease) in contract owners'
      equity resulting from operations .................   20,560,546        7,902,323       1,728,345         985,701
                                                         ------------    -------------   -------------   -------------
EQUITY TRANSACTIONS:
  Purchase payments received from
    contract owners ....................................   17,504,981        5,816,573         423,584         540,709
  Transfers between funds ..............................   15,259,707         (221,892)       (580,789)       (505,058)
  Redemptions ..........................................   (8,674,178)      (2,632,012)     (1,098,214)       (251,120)
  Adjustments to maintain reserves .....................       (2,327)          (1,901)            (35)           (308)
                                                         ------------    -------------   -------------   -------------
    Net equity transactions ............................   24,088,183        2,960,768      (1,255,454)       (215,777)
  Net change in contract owners' equity ................   44,648,729       10,863,091         472,891         769,924
  Contract owners' equity beginning of period ..........   44,457,575       33,594,484       7,196,235       6,426,311
                                                         ------------    -------------   -------------   -------------
  Contract owners' equity end of period ................ $ 89,106,304       44,457,575       7,669,126       7,196,235
                                                         ============    =============   =============   =============
</TABLE>


<PAGE>   9

                             NACO VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996
<TABLE>
<CAPTION>
                                                                       NWMYMKT                         NBGUARD
                                                             ------------    ------------    ------------    ------------
                                                                 1997            1996            1997            1996
                                                             ------------    ------------    ------------    ------------
<S>                                                          <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends .....................................   $  2,538,526       2,149,385         219,518         196,669
Mortality and expense charges (note 2) ...................       (254,376)       (232,068)       (170,400)        (83,256)
Administration charge (note 2)
      Tier I .............................................        (95,174)        (78,586)        (72,318)        (33,390)
      Tier II ............................................        (27,102)        (26,094)        (24,787)        (11,620)
      Tier III ...........................................        (17,915)        (14,966)        (10,868)         (5,748)
      Tier IV ............................................        (10,690)        (34,876)         (4,336)         (8,820)
      Tier V .............................................        (17,451)             -           (9,033)             -
                                                             ------------    ------------    ------------    ------------
  Net investment activity ................................      2,115,818       1,762,795         (72,224)         53,835
Proceeds from mutual fund shares sold ....................     65,472,045      36,057,505       4,722,451       1,397,739
Cost of mutual fund shares sold ..........................    (65,472,045)    (36,057,505)     (3,617,011)     (1,206,162)
                                                             ------------    ------------    ------------    ------------
  Realized gain (loss) on investments ....................             -               -        1,105,440         191,577
Change in unrealized gain (loss) on investments ..........             -               -       (1,847,382)      1,430,910
                                                             ------------    ------------    ------------    ------------
  Net gain (loss) on investments .........................             -               -         (741,942)      1,622,487
                                                             ------------    ------------    ------------    ------------
Reinvested capital gains .................................             -               -        5,284,078       1,002,975
                                                             ------------    ------------    ------------    ------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ...................      2,115,818       1,762,795       4,469,912       2,679,297
                                                             ------------    ------------    ------------    ------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ........................................     10,477,258       5,939,190      14,909,263      10,662,720
Transfers between funds ..................................    (10,384,252)      6,268,382       3,648,156        (308,504)
Redemptions ..............................................     (8,399,390)     (6,040,030)     (4,870,821)     (1,054,373)
Adjustments to maintain reserves .........................           (686)         (3,204)         (7,439)           (951)
                                                             ------------    ------------    ------------    ------------
    Net equity transactions ..............................     (8,307,070)      6,164,338      13,679,159       9,298,892
Net change in contract owners' equity ....................     (6,191,252)      7,927,133      18,149,071      11,978,189
Contract owners' equity beginning of period ..............     50,815,017      42,887,884      21,909,962       9,931,773
                                                             ------------    ------------    ------------    ------------
Contract owners' equity end of period ....................   $ 44,623,765      50,815,017      40,059,033      21,909,962
                                                             ============    ============    ============    ============
</TABLE>
<TABLE>
<CAPTION>
                                                                  PUTINVFD                        PUTVOYFD
                                                        ------------    -------------   -------------   -------------
                                                            1997            1996            1997             1996
                                                        ------------    -------------   -------------   -------------
<S>                                                     <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends ................................   $    201,337          183,827              -               -
Mortality and expense charges (note 2) ..............       (245,470)        (156,121)       (845,606)       (550,692)
Administration charge (note 2)
      Tier I ........................................       (128,526)         (80,822)       (392,409)       (249,007)
      Tier II .......................................        (26,541)         (17,637)       (122,438)        (74,066)
      Tier III ......................................        (18,768)          (8,805)        (56,223)        (37,901)
      Tier IV .......................................         (4,493)         (11,839)        (24,210)        (47,307)
      Tier V ........................................         (8,093)              -          (30,696)             -
                                                        ------------    -------------   -------------   -------------
  Net investment activity ...........................       (230,554)         (91,397)     (1,471,582)       (958,973)
Proceeds from mutual fund shares sold ...............      7,194,124        1,318,475      13,936,317       1,631,415
Cost of mutual fund shares sold .....................     (5,511,306)      (1,244,147)     (7,581,337)       (906,797)
                                                        ------------    -------------   -------------   -------------
  Realized gain (loss) on investments ...............      1,682,818           74,328       6,354,980         724,618
Change in unrealized gain (loss) on investments .....      7,106,597        1,609,874      21,628,132       1,835,298
                                                        ------------    -------------   -------------   -------------
  Net gain (loss) on investments ....................      8,789,415        1,684,202      27,983,112       2,559,916
                                                        ------------    -------------   -------------   -------------
Reinvested capital gains ............................      5,186,816        3,982,924      11,805,197       8,602,740
                                                        ------------    -------------   -------------   -------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ..............     13,745,677        5,575,729      38,316,727      10,203,683
                                                        ------------    -------------   -------------   -------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ...................................      9,952,027        5,272,327      49,543,414      40,603,066
Transfers between funds .............................      6,647,199          928,922      (5,787,505)     17,094,396
Redemptions .........................................     (6,224,509)      (1,529,851)    (18,823,850)     (5,623,714)
Adjustments to maintain reserves ....................           (299)            (656)         (3,442)           (728)
                                                        ------------    -------------   -------------   -------------
    Net equity transactions .........................     10,374,418        4,670,742      24,928,617      52,073,020
Net change in contract owners' equity ...............     24,120,095       10,246,471      63,245,344      62,276,703
Contract owners' equity beginning of period .........     35,803,162       25,556,691     137,145,381      74,868,678
                                                        ------------    -------------   -------------   -------------
Contract owners' equity end of period ...............   $ 59,923,257       35,803,162     200,390,725     137,145,381
                                                        ============    =============   =============   =============
</TABLE>


                                                                     (Continued)


<PAGE>   10

                             NACO VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996
<TABLE>
<CAPTION>
                                                                       SEI500IX                       SELGROFD
                                                             ------------    ------------    ------------    ------------
                                                                 1997            1996            1997            1996
                                                             ------------    ------------    ------------    ------------
<S>                                                          <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends .....................................   $    496,400          28,314              -               -
Mortality and expense charges (note 2) ...................       (180,116)        (13,423)        (47,926)        (35,287)
Administration charge (note 2)
      Tier I .............................................        (81,570)         (5,772)        (22,236)        (15,080)
      Tier II ............................................        (23,893)         (1,822)         (5,696)         (3,364)
      Tier III ...........................................        (14,809)           (960)         (2,991)         (2,768)
      Tier IV ............................................         (4,741)         (1,252)         (1,383)         (3,885)
      Tier V .............................................         (6,925)             -           (2,297)             -
                                                             ------------    ------------    ------------    ------------
  Net investment activity ................................        184,346           5,085         (82,529)        (60,384)
Proceeds from mutual fund shares sold ....................      6,510,687       1,226,914       2,225,057         665,681
Cost of mutual fund shares sold ..........................     (4,821,399)     (1,131,438)     (1,924,254)       (685,474)
                                                             ------------    ------------    ------------    ------------
  Realized gain (loss) on investments ....................      1,689,288          95,476         300,803         (19,793)
Change in unrealized gain (loss) on investments ..........      6,582,190         465,601         129,162         689,754
                                                             ------------    ------------    ------------    ------------
  Net gain (loss) on investments .........................      8,271,478         561,077         429,965         669,961
                                                             ------------    ------------    ------------    ------------
Reinvested capital gains .................................        382,784         131,859       1,117,389         620,965
                                                             ------------    ------------    ------------    ------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ...................      8,838,608         698,021       1,464,825       1,230,542
                                                             ------------    ------------    ------------    ------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ........................................     25,239,383       4,620,835       1,994,573       1,441,227
Transfers between funds ..................................     21,078,872       5,546,852        (842,537)        573,792
Redemptions ..............................................     (7,775,480)       (282,950)     (1,342,748)       (322,865)
Adjustments to maintain reserves .........................         (8,585)           (522)           (659)            157
                                                             ------------    ------------    ------------    ------------
    Net equity transactions ..............................     38,534,190       9,884,215        (191,371)      1,692,311
Net change in contract owners' equity ....................     47,372,798      10,582,236       1,273,454       2,922,853
Contract owners' equity beginning of period ..............     10,582,236              -        8,433,505       5,510,652
                                                             ------------    ------------    ------------    ------------
Contract owners' equity end of period ....................   $ 57,955,034      10,582,236       9,706,959       8,433,505
                                                             ============    ============    ============    ============
</TABLE>
<TABLE>
<CAPTION>
                                                                 AIMTREAS                        TRINTSTK
                                                       ------------    -------------   -------------   -------------
                                                           1997            1996            1997             1996
                                                       ------------    -------------   -------------   -------------
<S>                                                    <C>             <C>             <C>             <C>
INVESTMENT ACTIVITY:
Reinvested dividends ...............................   $    217,515          115,635         404,000         318,699
Mortality and expense charges (note 2) .............        (20,246)         (11,332)       (150,968)        (95,586)
Administration charge (note 2)
      Tier I .......................................         (6,730)          (4,804)        (63,120)        (36,081)
      Tier II ......................................         (1,889)            (728)        (21,402)        (13,753)
      Tier III .....................................         (1,303)          (1,360)        (11,121)         (5,859)
      Tier IV ......................................         (2,261)          (1,127)         (3,996)        (11,415)
      Tier V .......................................           (776)              -           (7,667)             -
                                                       ------------    -------------   -------------   -------------
  Net investment activity ..........................        184,310           96,284         145,726         156,005
Proceeds from mutual fund shares sold ..............     22,350,432        4,232,659      29,556,434       6,973,759
Cost of mutual fund shares sold ....................    (22,350,432)      (4,232,659)    (26,380,399)     (5,889,819)
                                                       ------------    -------------   -------------   -------------
  Realized gain (loss) on investments ..............             -                -        3,176,035       1,083,940
Change in unrealized gain (loss) on investments ....             -                -       (3,819,017)        922,999
                                                       ------------    -------------   -------------   -------------
  Net gain (loss) on investments ...................             -                -         (642,982)      2,006,939
                                                       ------------    -------------   -------------   -------------
Reinvested capital gains ...........................             -                -        1,111,001         354,110
                                                       ------------    -------------   -------------   -------------
    Net increase (decrease) in contract owners'
      equity resulting from operations .............        184,310           96,284         613,745       2,517,054
                                                       ------------    -------------   -------------   -------------
EQUITY TRANSACTIONS:
Purchase payments received from
  contract owners ..................................        976,012          820,514      10,320,079       9,239,961
Transfers between funds ............................      1,160,637          260,363      (2,910,875)      3,932,941
Redemptions ........................................       (847,759)        (197,508)     (4,778,319)       (946,866)
Adjustments to maintain reserves ...................          2,892             (255)          3,678           1,803
                                                       ------------    -------------   -------------   -------------
    Net equity transactions ........................      1,291,782          883,114       2,634,563      12,227,839
Net change in contract owners' equity ..............      1,476,092          979,398       3,248,308      14,744,893
Contract owners' equity beginning of period ........      2,686,515        1,707,117      25,426,682      10,681,789
                                                       ------------    -------------   -------------   -------------
Contract owners' equity end of period ..............   $  4,162,607        2,686,515      28,674,990      25,426,682
                                                       ============    =============   =============   =============
</TABLE>


<PAGE>   11

                             NACo VARIABLE ACCOUNT
        STATEMENTS OF OPERATIONS AND CHANGES IN CONTRACT OWNERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1997 AND 1996
<TABLE>
<CAPTION>
                                                                       TemForFd
                                                             ------------    ------------
                                                                 1997            1996
                                                             ------------    ------------
<S>                                                          <C>             <C>
INVESTMENT ACTIVITY:
  Reinvested dividends ...................................   $  1,469,709         787,336
  Mortality and expense charges (note 2) .................       (227,825)       (127,799)
  Administration charge (note 2)
      Tier I .............................................       (100,578)        (55,258)
      Tier II ............................................        (37,019)        (21,931)
      Tier III ...........................................        (16,074)         (6,841)
      Tier IV ............................................         (5,303)        (11,034)
      Tier V .............................................         (8,925)             -
                                                             ------------    ------------
    Net investment activity ..............................      1,073,985         564,473
  Proceeds from mutual fund shares sold ..................      8,737,686       3,772,230
  Cost of mutual fund shares sold ........................     (7,341,764)     (3,774,731)
                                                             ------------    ------------
    Realized gain (loss) on investments ..................      1,395,922          (2,501)
  Change in unrealized gain (loss) on investments ........     (4,411,710)      2,902,496
                                                             ------------    ------------
    Net gain (loss) on investments .......................     (3,015,788)      2,899,995
                                                             ------------    ------------
  Reinvested capital gains ...............................      3,875,434         489,746
                                                             ------------    ------------
    Net increase (decrease) in contract owners'
      equity resulting from operations ...................      1,933,631       3,954,214
                                                             ------------    ------------
EQUITY TRANSACTIONS:
  Purchase payments received from
    contract owners ......................................     15,303,596      10,856,880
  Transfers between funds ................................      2,903,432       2,104,634
  Redemptions ............................................     (4,616,849)       (883,023)
  Adjustments to maintain reserves .......................         (2,254)         (3,777)
                                                             ------------    ------------
    Net equity transactions ..............................     13,587,925      12,074,714
NET CHANGE IN CONTRACT OWNERS' EQUITY ....................     15,521,556      16,028,928
CONTRACT OWNERS' EQUITY BEGINNING OF PERIOD ..............     32,998,572      16,969,644
                                                             ------------    ------------
CONTRACT OWNERS' EQUITY END OF PERIOD ....................   $ 48,520,128      32,998,572
                                                             ============    ============
</TABLE>


See accompanying notes to financial statements.

<PAGE>   12

                              NACo VARIABLE ACCOUNT

                          NOTES TO FINANCIAL STATEMENTS

                           DECEMBER 31, 1997 AND 1996



(1)  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

     (a) Organization and Nature of Operations

         NACo Variable Account (NACoVA) was established pursuant to a resolution
         of the Board of Directors of Nationwide Life Insurance Company (the
         Company) on September 7, 1988, and has been registered as a unit
         investment trust under the Investment Company Act of 1940. The NACoVA
         was introduced for exclusive use by Member Counties for deferred
         compensation Plans adopted under the National Association of Counties
         (NACo) Program.

         The Company offers group flexible fund retirement contracts through the
         NACoVA. The primary distribution for the contracts is through an
         affiliated sales organization.

     (b) The Contracts

         The Group Flexible Retirement Contracts (the Contract) are offered for
         purchase in connection with deferred compensation Plans adopted by
         Member Counties under the NACo Program. Participants in the contracts
         may invest in any of the following fund sub-accounts:

            American Century: Twentieth Century Growth Fund (ACTCGro)

            American Century: Twentieth Century Ultra Fund (ACTCUltra)

            The Bond Fund of America(SM), Inc. (BdFdAm)
             (only available for certain contracts issued beginning
             January 1, 1994)

            The Dreyfus Third Century Fund, Inc. (Dry3dCen)

            Evergreen Income and Growth Fund - Class Y (EvIncGro) (formerly
             The Evergreen Total Return Fund - Class Y) (not available for
             contracts issued on or after October 1, 1993)

            Federated U.S. Government Securities Fund: 2-5 Years - Institutional
             Shares (FedUSGvt)

            Fidelity Capital & Income Fund (FidCapInc)
             (not available for contracts issued on or after January 1, 1987)

            Fidelity Contrafund (FidContr)

            Fidelity Equity-Income Fund (FidEqInc)

            Fidelity Magellan(R) Fund (FidMgln)

            Fidelity OTC Portfolio (FidOTC)

            Fidelity Puritan(R) Fund (FidPurtn)

            The Investment Company of America(R) (InvCoAm)
             (only available for certain contracts issued beginning
             July 1, 1994)

            MAS Funds - Fixed Income Portfolio (MASFIP)

            MFS(R) Growth Opportunities Fund - Class A (MFSGrOpp) (not
             available for contracts issued on or after October 1, 1993)

            MFS(R) High Income Fund - Class A (MFSHiInc)

            Massachusetts Investors Growth Stock Fund - Class A (MFSGrStk)


<PAGE>   13

            Nationwide(R) Fund (NWFund) (managed for a fee by an affiliated
             investment advisor)

            Nationwide(R) Growth Fund (NWGroFd) (managed for a fee by an
             affiliated investment advisor) (not available for contracts
             issued on or after October 1, 1993)

            Nationwide(R) Money Market Fund (NWMyMkt) (managed for a fee by an
             affiliated investment advisor)

            Neuberger & Berman Guardian Fund (NBGuard)

            Putnam Investors Fund - Class A (PutInvFd)

            Putnam Voyager Fund - Class A (PutVoyFd)

            SEI Index Funds - S&P 500 Index Portfolio (SEI500Ix)

            Seligman Growth Fund, Inc. - Class A (SelGroFd)

            Short-Term Investments Trust - Treasury Portfolio - Institutional
             Class (AIMTreas)

            T. Rowe Price International Funds, Inc. - International
             Stock Fund(R) (TRIntStk)

            Templeton Foreign Fund - Class I (TemForFd)

         All of the above funds were being utilized as of December 31, 1997.

         The contract owners' equity is affected by the investment results of
         each fund, equity transactions by contract owners and certain expenses
         (see note 2). The accompanying financial statements include only
         contract owners' purchase payments pertaining to the variable portions
         of their contracts and exclude any purchase payments for fixed dollar
         benefits, the latter being included in the accounts of the Company.

     (c) Security Valuation, Transactions and Related Investment Income

         The market value of the underlying mutual funds is based on the closing
         net asset value per share at December 31, 1997. The cost of investments
         sold is determined on the specific identification basis. Investment
         transactions are accounted for on the trade date (date the order to buy
         or sell is executed) and dividend income is recorded on the ex-dividend
         date.

     (d) Federal Income Taxes

         Operations of the NACoVA form a part of, and are taxed with, operations
         of the Company, which is taxed as a life insurance company under the
         Internal Revenue Code. The assets in this account are held pursuant to
         contracts with entities which are exempt from federal income tax.
         Because of this exemption, no taxes need be provided for investment
         income or realized and unrealized capital gains. Annuity payouts and
         withdrawal payments are taxable as wages when received by the
         participants.

     (e) Use of Estimates in the Preparation of Financial Statements

         The preparation of financial statements in conformity with generally
         accepted accounting principles may require management to make estimates
         and assumptions that affect the reported amounts of assets and
         liabilities and disclosure of contingent assets and liabilities, if
         any, at the date of the financial statements and the reported amounts
         of revenues and expenses during the reporting period. Actual results
         could differ from those estimates.

     (f) Reclassifications

         Certain 1996 amounts have been reclassified to conform with the current
         year presentation.



<PAGE>   14

(2)  EXPENSES

     No deduction for a sales charge is made from the purchase payments for
     these contracts. However, if an owner terminates the contract and directs
     the Company to withdraw all or part of the contract value held in the
     Account for less than sixteen (16) years, the Company will, with certain
     exceptions, assess a contingent deferred sales charge by deducting an
     amount from each participant's account. This charge will be equal to not
     more than 4% in the first year, declining to 1% in the fifteenth year, of
     the lesser of all purchase payments made on behalf of a participant prior
     to the date of withdrawal, or the amount withdrawn. No sales charges are
     deducted on redemptions used to purchase units in the fixed investment
     options of the Company. Sales charges may be reduced or eliminated upon
     negotiated conversion of the contracts to other investment programs offered
     by the Company or its affiliates.

     The following charges are deducted by the Company: a mortality risk charge,
     an expense risk charge and an administration charge which are assessed
     through the daily unit value calculation. The morality risk charge and the
     expense risk charge are equal to an annual rate of 0.10% and 0.40%
     respectively; and the administration charge prior to May 1, 1996 was 0.45%.
     Beginning May 1, 1996, the administration charge is based upon the
     aggregate balance of assets held under the Contract by each Member County,
     as follows:
<TABLE>
<CAPTION>
            Expense                                 Administration
             Tier          Assets (Millions)            Charge
<S>                        <C>                      <C>
              I                Up to $10                 .45%
              II            Over $10 to $25              .40%
              III           Over $25 to $50              .30%
              IV            Over $50 to $150             .20%
              V               Over $150                  .15%
</TABLE>

     The administration charge is determined using the December 31 asset balance
     and is effective at the next expense tier on the following May 1.

     Contract owners may negotiate an exchange privilege with the Company. The
     exchange privilege provides for transfers of units among the various
     investment options for each participant's account. The number of transfers
     allowed, and any administrative charges associated therewith, are subject
     to negotiation between the contract owner and the Company.

(3)  RELATED PARTY TRANSACTIONS

     The Company performs various services on behalf of the Mutual Fund
     Companies in which the Account invests and may receive fees for the
     services performed. These services include, among other things, shareholder
     communications, preparation, postage, fund transfer agency and various
     other record keeping and customer service functions. These fees are paid to
     an affiliate of the Company.


<PAGE>   15

(4)  COMPONENTS OF CONTRACT OWNERS' EQUITY

     The following is a summary of contract owners' equity at December 31, 1997.
<TABLE>
<CAPTION>
                                                                                                              ANNUAL
     TIER I (DECEMBER 31, 1995, SEE NOTE 2)                  UNITS         UNIT VALUE                         RETURN
     --------------------------------------                ----------      ----------                         ------
<S>                                                        <C>             <C>             <C>                <C>
        American Century: Twentieth Century
          Growth Fund ..................................    7,567,678      $ 5.842997      $  44,217,920        28%
        American Century: Twentieth Century
          Ultra Fund ...................................   58,270,626        1.737833        101,264,617        22%
        The Bond Fund of America(SM), Inc. .............    3,075,422        2.332586          7,173,686         8%
        The Dreyfus Third Century Fund, Inc. ...........    7,094,050        3.532278         25,058,157        28%
        Evergreen Income and Growth Fund -
          Class Y ......................................      776,076        2.422617          1,880,135        24%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares .............    1,452,934        1.301886          1,891,554         6%
        Fidelity Capital & Income Fund .................      232,885        4.654233          1,083,901        14%
        Fidelity Contrafund ............................   82,151,064        1.935931        159,038,791        22%
        Fidelity Equity-Income Fund ....................   23,161,038        6.900916        159,832,378        29%
        Fidelity Magellan(R) Fund ......................   35,656,191        1.804998         64,359,353        25%
        Fidelity OTC Portfolio .........................    8,056,286        1.829868         14,741,940         9%
        Fidelity Puritan(R) Fund .......................   10,750,214        1.596539         17,163,136        21%
        The Investment Company of America(R) ...........   16,333,170        2.277283         37,195,250        29%
        MAS Funds - Fixed Income Portfolio .............    1,169,738        1.335173          1,561,803         9%
        MFS(R) Growth Opportunities Fund -
          Class A ......................................      834,685        9.012670          7,522,740        22%
        MFS(R) High Income Fund - Class A ..............    1,054,064        6.168371          6,501,858        12%
        Massachusetts Investors Growth
          Stock Fund - Class A .........................      364,302       15.968069          5,817,199        47%
        Nationwide(R) Fund .............................    2,097,021       20.697282         43,402,635        38%
        Nationwide(R) Growth Fund ......................      959,417        3.854877          3,698,435        25%
        Nationwide(R) Money Market Fund ................    5,808,984        3.003821         17,449,148         4%
        Neuberger & Berman Guardian Fund ...............   10,840,792        1.706116         18,495,649        17%
        Putnam Investors Fund - Class A ................    1,862,211       18.110411         33,725,407        33%
        Putnam Voyager Fund - Class A ..................   26,549,651        3.837109        101,873,905        25%
        SEI Index Funds - S&P 500 Index Portfolio ......   19,127,252        1.501834         28,725,957        32%
        Seligman Growth Fund, Inc. - Class A. ..........      384,411       12.541848          4,821,224        17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class .....    1,270,880        1.222017          1,553,037         5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ..................   10,712,801        1.198954         12,844,156         2%
        Templeton Foreign Fund - Class I ...............   18,596,589        1.284158         23,880,959         6%
                                                           ==========       =========        -----------
          Sub-Total Tier I (December 31, 1995) .........                                   $ 946,774,930
                                                                                             ===========
</TABLE>

                                                                     (Continued)


<PAGE>   16

<TABLE>
<CAPTION>
                                                                                                               ANNUAL
     TIER II (DECEMBER 31, 1995, SEE NOTE 2)                  UNITS        UNIT VALUE                          RETURN
     ---------------------------------------               -----------     -----------                         ------
<S>                                                        <C>             <C>              <C>                <C>
        American Century: Twentieth Century
          Growth Fund ..................................    2,972,496      $  5.847874      $  17,382,782        28%
        American Century: Twentieth Century
          Ultra Fund ...................................   17,512,296         1.739283         30,458,839        22%
        The Bond Fund of America(SM), Inc. .............      838,935         2.334569          1,958,552         8%
        The Dreyfus Third Century Fund, Inc. ...........    2,141,147         3.535226          7,569,439        28%
        Evergreen Income and Growth Fund -
          Class Y ......................................      164,209         2.424638            398,147        24%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares .............      485,556         1.302984            632,672         6%
        Fidelity Capital & Income Fund .................       50,755         4.658156            236,425        14%
        Fidelity Contrafund ............................   23,258,606         1.937547         45,064,642        22%
        Fidelity Equity-Income Fund ....................    6,412,368         6.906673         44,288,129        29%
        Fidelity Magellan(R) Fund ......................    9,967,418         1.806504         18,006,180        25%
        Fidelity OTC Portfolio .........................    2,364,115         1.831396          4,329,631         9%
        Fidelity Puritan(R) Fund .......................    2,540,462         1.597871          4,059,331        21%
        The Investment Company of America(R) ...........    5,422,918         2.279183         12,359,823        29%
        MAS Funds - Fixed Income Portfolio .............      274,281         1.336288            366,518         9%
        MFS(R) Growth Opportunities Fund -
          Class A ......................................      235,276         9.020195          2,122,235        22%
        MFS(R) High Income Fund - Class A ..............      244,788         6.173570          1,511,216        12%
        Massachusetts Investors Growth
          Stock Fund - Class A .........................      111,799        15.981395          1,786,704        47%
        Nationwide(R) Fund .............................      592,502        20.714549         12,273,412        38%
        Nationwide(R) Growth Fund ......................      360,606         3.858094          1,391,252        25%
        Nationwide(R) Money Market Fund ................    1,760,454         3.006353          5,292,546         4%
        Neuberger & Berman Guardian Fund ...............    3,222,201         1.707540          5,502,037        17%
        Putnam Investors Fund - Class A ................      329,877        18.125525          5,979,194        33%
        Putnam Voyager Fund - Class A ..................    7,200,296         3.840312         27,651,383        25%
        SEI Index Funds - S&P 500 Index Portfolio ......    5,223,019         1.503085          7,850,642        32%
        Seligman Growth Fund, Inc. - Class A. ..........       80,990        12.552317          1,016,612        17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class .....      203,199         1.223047            248,522         5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ..................    3,056,840         1.199955          3,668,070         2%
        Templeton Foreign Fund - Class I ...............    5,823,447         1.285230          7,484,469         6%
                                                           ==========        =========        -----------
          Sub-Total Tier II (December 31, 1995) ........                                    $ 270,889,404
                                                                                              ===========
</TABLE>


<PAGE>   17

<TABLE>
<CAPTION>
                                                                                                        ANNUAL
     TIER II (DECEMBER 31, 1996, SEE NOTE 2)                  UNITS       UNIT VALUE                    RETURN
     --------------------------------------                ----------     ----------                    ------
<S>                                                        <C>            <C>          <C>              <C>
        American Century: Twentieth Century
          Growth Fund ...................................   1,115,895     $5.844955    $ 6,522,356        28%
        American Century: Twentieth Century
          Ultra Fund ....................................   6,429,806      1.738415     11,177,671        22%
        The Bond Fund of America(SM), Inc. ..............     463,715      2.333393      1,082,029         8%
        The Dreyfus Third Century Fund, Inc. ............     828,576      3.533462      2,927,742        28%
        Evergreen Income and Growth Fund -
          Class Y .......................................     104,407      2.423429        253,023        24%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares ..............     153,705      1.302328        200,174         6%
        Fidelity Capital & Income Fund ..................      22,125      4.655810        103,010        14%
        Fidelity Contrafund .............................   8,810,458      1.936580     17,062,157        22%
        Fidelity Equity-Income Fund .....................   2,726,805      6.903229     18,823,759        29%
        Fidelity Magellan(R) Fund .......................   3,146,118      1.805603      5,680,640        25%
        Fidelity OTC Portfolio ..........................     750,546      1.830482      1,373,861         9%
        Fidelity Puritan(R) Fund ........................   1,227,566      1.597074      1,960,514        21%
        The Investment Company of America(R) ............   1,973,413      2.278047      4,495,528        29%
        MAS Funds - Fixed Income Portfolio ..............      39,766      1.335621         53,112         9%
        MFS(R) Growth Opportunities Fund -
          Class A .......................................     106,751      9.015691        962,434        22%
        MFS(R) High Income Fund - Class A ...............     148,670      6.170461        917,362        12%
        Massachusetts Investors Growth
          Stock Fund - Class A ..........................      38,917     15.973419        621,638        47%
        Nationwide(R) Fund ..............................     180,761     20.704221      3,742,516        38%
        Nationwide(R) Growth Fund .......................     106,963      3.856169        412,467        25%
        Nationwide(R) Money Market Fund .................     472,514      3.004839      1,419,828         4%
        Neuberger & Berman Guardian Fund ................   1,051,558      1.706688      1,794,681        17%
        Putnam Investors Fund - Class A .................     157,603     18.116482      2,855,212        33%
        Putnam Voyager Fund - Class A ...................   2,560,666      3.838394      9,828,845        25%
        SEI Index Funds - S&P 500 Index Portfolio .......   1,203,420      1.502337      1,807,942        32%
        Seligman Growth Fund, Inc. - Class A. ...........      42,594     12.546053        534,387        17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class ......     156,120      1.222431        190,846         5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ...................   1,203,031      1.199356      1,442,862         2%
        Templeton Foreign Fund - Class I ................   1,891,595      1.284589      2,429,922         6%
                                                            =========      ========   ------------
          Sub-Total Tier II (December 31, 1996) .........                             $100,676,518
                                                                                      ============
</TABLE>

                                                                     (Continued)


<PAGE>   18

<TABLE>
<CAPTION>
                                                                                                      ANNUAL
     TIER III (DECEMBER 31, 1995, SEE NOTE 2)                 UNITS      UNIT VALUE                   RETURN
     ---------------------------------------               ----------    ----------                   ------
<S>                                                        <C>           <C>           <C>            <C>
        American Century: Twentieth Century
          Growth Fund ..................................    1,491,035    $ 5.857641    $  8,733,948     28%
        American Century: Twentieth Century
          Ultra Fund ...................................    9,471,388      1.742188      16,500,939     22%
        The Bond Fund of America(SM), Inc. .............      597,695      2.338535       1,397,731      8%
        The Dreyfus Third Century Fund, Inc. ...........      917,688      3.541129       3,249,652     28%
        Evergreen Income and Growth Fund -
          Class Y ......................................      130,014      2.428687         315,763     25%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares .............      241,356      1.305179         315,013      6%
        Fidelity Capital & Income Fund .................      120,784      4.666006         563,579     14%
        Fidelity Contrafund ............................   12,620,829      1.940782      24,494,278     22%
        Fidelity Equity-Income Fund ....................    5,904,892      6.918202      40,851,236     29%
        Fidelity Magellan(R) Fund ......................    5,726,530      1.809520      10,362,271     26%
        Fidelity OTC Portfolio .........................    1,302,436      1.834455       2,389,260      9%
        Fidelity Puritan(R) Fund .......................    1,283,945      1.600539       2,055,004     21%
        The Investment Company of America(R) ...........    2,356,594      2.282988       5,380,076     29%
        MAS Funds - Fixed Income Portfolio .............       94,434      1.338520         126,402      9%
        MFS(R) Growth Opportunities Fund -
          Class A ......................................      197,549      9.035263       1,784,907     22%
        MFS(R) High Income Fund - Class A ..............      233,869      6.183974       1,446,240     12%
        Massachusetts Investors Growth
          Stock Fund - Class A .........................       78,577     16.008079       1,257,867     47%
        Nationwide(R) Fund .............................      355,149     20.749126       7,369,031     39%
        Nationwide(R) Growth Fund ......................       89,839      3.864536         347,186     25%
        Nationwide(R) Money Market Fund ................    1,219,186      3.011419       3,671,480      4%
        Neuberger & Berman Guardian Fund ...............    1,596,621      1.710392       2,730,848     17%
        Putnam Investors Fund - Class A ................      233,708     18.155790       4,243,153     33%
        Putnam Voyager Fund - Class A ..................    3,817,279      3.846728      14,684,034     25%
        SEI Index Funds - S&P 500 Index Portfolio ......    3,491,065      1.505589       5,256,109     32%
        Seligman Growth Fund, Inc. - Class A. ..........       61,083     12.573280         768,014     17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class .....      331,148      1.225108         405,692      5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ..................    1,722,849      1.201960       2,070,796      2%
        Templeton Foreign Fund - Class I ...............    2,363,601      1.287377       3,042,846      6%
                                                           ==========     =========    ------------
          Sub-Total Tier III (December 31, 1995) .......                               $165,813,355
                                                                                       ============
</TABLE>


<PAGE>   19

<TABLE>
<CAPTION>
                                                                                                         ANNUAL
     TIER III (DECEMBER 31, 1996, SEE NOTE 2)                 UNITS      UNIT VALUE                      RETURN
     ---------------------------------------                ---------    ----------                      ------
<S>                                                         <C>          <C>            <C>              <C>
        American Century: Twentieth Century
          Growth Fund ...................................     674,415    $ 5.851796     $  3,946,539       28%
        American Century: Twentieth Century
          Ultra Fund ....................................   4,660,957      1.740450        8,112,163       22%
        The Bond Fund of America(SM), Inc. ..............     219,702      2.336182          513,264        8%
        The Dreyfus Third Century Fund, Inc. ............     406,041      3.537596        1,436,409       28%
        Evergreen Income and Growth Fund -
          Class Y .......................................      25,537      2.426264           61,960       25%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares ..............      61,181      1.303866           79,772        6%
        Fidelity Capital & Income Fund ..................      14,865      4.661311           69,290       14%
        Fidelity Contrafund .............................   6,956,699      1.938846       13,487,968       22%
        Fidelity Equity-Income Fund .....................   2,138,680      6.911304       14,781,068       29%
        Fidelity Magellan(R) Fund .......................   2,856,554      1.807715        5,163,836       26%
        Fidelity OTC Portfolio ..........................     658,565      1.832624        1,206,902        9%
        Fidelity Puritan(R) Fund ........................     860,797      1.598943        1,376,365       21%
        The Investment Company of America(R) ............   1,183,576      2.280712        2,699,396       29%
        MAS Funds - Fixed Income Portfolio ..............       8,001      1.337185           10,699        9%
        MFS(R) Growth Opportunities Fund -
          Class A .......................................      63,570      9.026243          573,798       22%
        MFS(R) High Income Fund - Class A ...............      67,909      6.177751          419,525       12%
        Massachusetts Investors Growth
          Stock Fund - Class A ..........................      39,760     15.992105          635,846       47%
        Nationwide(R) Fund ..............................     193,920     20.728440        4,019,659       39%
        Nationwide(R) Growth Fund .......................     119,317      3.860681          460,645       25%
        Nationwide(R) Money Market Fund .................     683,175      3.008389        2,055,256        4%
        Neuberger & Berman Guardian Fund ................     826,685      1.708685        1,412,544       17%
        Putnam Investors Fund - Class A .................     183,147     18.137679        3,321,861       33%
        Putnam Voyager Fund - Class A ...................   1,982,897      3.842887        7,620,049       25%
        SEI Index Funds - S&P 500 Index Portfolio .......   1,782,753      1.504092        2,681,425       32%
        Seligman Growth Fund, Inc. - Class A. ...........      23,580     12.560735          296,182       17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class ......      28,293      1.223875           34,627        5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ...................   1,125,641      1.200760        1,351,625        2%
        Templeton Foreign Fund - Class I ................   1,989,093      1.286093        2,558,159        6%
                                                            =========     =========     ------------
          Sub-Total Tier III (December 31, 1996) ........                               $ 80,386,832
                                                                                        ============
</TABLE>


                                                                     (Continued)


<PAGE>   20

<TABLE>
<CAPTION>
                                                                                                                ANNUAL
     TIER IV (DECEMBER 31, 1995, SEE NOTE 2)                  UNITS         UNIT VALUE                          RETURN
     --------------------------------------                 ---------       ----------                          ------
<S>                                                         <C>             <C>              <C>                <C>
        American Century: Twentieth Century
          Growth Fund ...................................     672,795       $ 5.867425       $  3,947,574         28%
        American Century: Twentieth Century
          Ultra Fund ....................................   4,693,395         1.745098          8,190,434         22%
        The Bond Fund of America(SM), Inc. ..............     293,584         2.342504            687,722          8%
        The Dreyfus Third Century Fund, Inc. ............     724,635         3.547042          2,570,311         28%
        Evergreen Income and Growth Fund -
          Class Y .......................................      90,044         2.432742            219,054         25%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares ..............     199,160         1.307377            260,377          6%
        Fidelity Capital & Income Fund ..................      15,630         4.673860             73,052         14%
        Fidelity Contrafund .............................   6,919,494         1.944023         13,451,655         22%
        Fidelity Equity-Income Fund .....................   1,480,026         6.929751         10,256,212         29%
        Fidelity Magellan(R) Fund .......................   2,947,714         1.812541          5,342,852         26%
        Fidelity OTC Portfolio ..........................     498,827         1.837520            916,605          9%
        Fidelity Puritan(R) Fund ........................     734,376         1.603211          1,177,360         21%
        The Investment Company of America(R) ............   1,186,761         2.286799          2,713,884         29%
        MAS Funds - Fixed Income Portfolio ..............      84,398         1.340756            113,157          9%
        MFS(R) Growth Opportunities Fund -
          Class A .......................................      33,173         9.050357            300,227         22%
        MFS(R) High Income Fund - Class A ...............     108,967         6.194384            674,983         12%
        Massachusetts Investors Growth
          Stock Fund - Class A ..........................      28,741        16.034807           460,856          47%
        Nationwide(R) Fund ..............................     218,220        20.783760         4,535,432          39%
        Nationwide(R) Growth Fund .......................      62,008         3.870989           240,032          25%
        Nationwide(R) Money Market Fund .................   1,244,833         3.016489         3,755,025           4%
        Neuberger & Berman Guardian Fund ................     828,370         1.713248         1,419,203          17%
        Putnam Investors Fund - Class A .................      93,488        18.186106         1,700,183          34%
        Putnam Voyager Fund - Class A ...................   1,919,534         3.853154         7,396,260          25%
        SEI Index Funds - S&P 500 Index Portfolio .......   1,436,973         1.508098         2,167,096          32%
        Seligman Growth Fund, Inc. - Class A. ...........      29,833        12.594278           375,725          17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class ......   1,061,646         1.227171         1,302,821           5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ...................     867,768         1.203968         1,044,765           2%
        Templeton Foreign Fund - Class I ................   1,164,252         1.289527         1,501,334           6%
                                                            =========        =========      ------------
          Sub-Total Tier IV (December 31, 1995) .........                                   $ 76,794,191
                                                                                            ============
</TABLE>


<PAGE>   21

<TABLE>
<CAPTION>
                                                                                                                ANNUAL
     TIER IV (DECEMBER 31, 1996, SEE NOTE 2)                  UNITS         UNIT VALUE                          RETURN
     --------------------------------------                ----------       ----------                          ------
<S>                                                        <C>              <C>              <C>                <C>
        American Century: Twentieth Century
          Growth Fund ...................................     791,919       $ 5.861569       $  4,641,888         28%
        American Century: Twentieth Century
          Ultra Fund ....................................   4,507,568         1.743357          7,858,300         22%
        The Bond Fund of America(SM), Inc. ..............     124,227         2.340149            290,710          9%
        The Dreyfus Third Century Fund, Inc. ............     528,101         3.543503          1,871,327         29%
        Evergreen Income and Growth Fund -
          Class Y .......................................      78,659         2.430315            191,166         25%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares ..............      88,325         1.306062            115,358          6%
        Fidelity Capital & Income Fund ..................      51,553         4.669162            240,709         14%
        Fidelity Contrafund .............................   5,170,372         1.942084         10,041,297         22%
        Fidelity Equity-Income Fund .....................   1,223,287         6.922841          8,468,621         29%
        Fidelity Magellan(R) Fund .......................   1,539,847         1.810733          2,788,252         26%
        Fidelity OTC Portfolio ..........................     781,703         1.835685          1,434,960          9%
        Fidelity Puritan(R) Fund ........................     379,214         1.601612            607,354         22%
        The Investment Company of America(R) ............     318,963         2.284519            728,677         29%
        MAS Funds - Fixed Income Portfolio ..............      68,206         1.339418             91,356          9%
        MFS(R) Growth Opportunities Fund -
          Class A .......................................      84,709         9.041322            765,881         23%
        MFS(R) High Income Fund - Class A ...............      51,594         6.188157            319,272         12%
        Massachusetts Investors Growth
          Stock Fund - Class A ..........................      21,209        16.018807            339,743         47%
        Nationwide(R) Fund ..............................      90,530        20.763040          1,879,678         39%
        Nationwide(R) Growth Fund .......................      19,388         3.867128             74,976         25%
        Nationwide(R) Money Market Fund .................     364,874         3.013456          1,099,532          4%
        Neuberger & Berman Guardian Fund ................     751,166         1.711539          1,285,650         17%
        Putnam Investors Fund - Class A .................      65,920        18.167964          1,197,632         34%
        Putnam Voyager Fund - Class A ...................   1,809,222         3.849306          6,964,249         25%
        SEI Index Funds - S&P 500 Index Portfolio .......   1,151,075         1.506599          1,734,208         32%
        Seligman Growth Fund, Inc. - Class A. ...........      25,438        12.581713            320,054         17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class ......     102,438         1.225937            125,583          5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ...................     811,683         1.202766            976,265          2%
        Templeton Foreign Fund - Class I ................     990,793         1.288241          1,276,380          6%
                                                            =========        =========       ------------
          Sub-Total Tier IV (December 31, 1996) .........                                    $ 57,729,078
                                                                                             ============
</TABLE>


                                                                     (Continued)


<PAGE>   22

<TABLE>
<CAPTION>
                                                                                                 ANNUAL
     TIER IV (DECEMBER 31, 1996, SEE NOTE 2)*                 UNITS     UNIT VALUE               RETURN
     ----------------------------------                     ---------   ----------               ------
<S>                                                         <C>         <C>          <C>         <C>
        American Century: Twentieth Century
          Growth Fund ...................................       2,223   $ 5.852797   $  13,011     28%
        American Century: Twentieth Century
          Ultra Fund ....................................      39,473     1.740747      68,713     22%
        The Bond Fund of America(SM), Inc. ..............         139     2.336617         325      8%
        The Dreyfus Third Century Fund, Inc. ............       4,553     3.538202      16,109     28%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares ..............      34,364     1.304091      44,814      6%
        Fidelity Contrafund .............................      51,788     1.939178     100,426     22%
        Fidelity Equity-Income Fund .....................       6,909     6.912488      47,758     29%
        Fidelity Magellan(R) Fund .......................      36,399     1.808025      65,810     26%
        Fidelity OTC Portfolio ..........................       4,185     1.832937       7,671      9%
        Fidelity Puritan(R) Fund ........................       9,482     1.599217      15,164     21%
        The Investment Company of America(R) ............       3,811     2.281103       8,693     29%
        MAS Funds - Fixed Income Portfolio ..............         438     1.337415         586      9%
        MFS(R) Growth Opportunities Fund -
          Class A .......................................         693     9.027786       6,256     22%
        MFS(R) High Income Fund - Class A ...............         117     6.178817         723     12%
        Massachusetts Investors Growth
          Stock Fund - Class A ..........................         353    15.994835       5,646     47%
        Nationwide(R) Fund ..............................       2,085    20.731998      43,226     39%
        Nationwide(R) Growth Fund .......................         226     3.861342         873     25%
        Nationwide(R) Money Market Fund .................       5,303     3.008908      15,956      4%
        Neuberger & Berman Guardian Fund ................      19,355     1.708978      33,077     17%
        Putnam Investors Fund - Class A .................       2,047    18.140786      37,134     33%
        Putnam Voyager Fund - Class A ...................      15,376     3.843542      59,098     25%
        SEI Index Funds - S&P 500 Index Portfolio .......      29,469     1.504352      44,332     32%
        Seligman Growth Fund, Inc. - Class A. ...........         406    12.562888       5,101     17%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class ......       7,027     1.224087       8,602      5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ...................       6,790     1.200967       8,155      2%
        Templeton Foreign Fund - Class I ................       8,712     1.286315      11,206      6%
                                                               ======    =========   ---------
          Sub-Total Tier IV (December 31, 1996) .........                            $ 668,465
                                                                                     =========
</TABLE>


*Tier includes certain Departments of a Member County that was previously
 converted to Tier IV using the Asset Balance as of December 31, 1995.





<PAGE>   23
<TABLE>
<CAPTION>
                                                                                                                 ANNUAL
     TIER V (DECEMBER 31, 1996, SEE NOTE 2)                   UNITS         UNIT VALUE                           RETURN
     -------------------------------------                 ----------       ----------                           ------
<S>                                                        <C>              <C>             <C>                  <C>
        American Century: Twentieth Century
          Growth Fund ..................................    2,322,606       $ 5.869391      $   13,632,283         29%
        American Century: Twentieth Century
          Ultra Fund ...................................   19,969,711         1.745683          34,860,785         23%
        The Bond Fund of America(SM), Inc. .............      753,555         2.343312           1,765,814          9%
        The Dreyfus Third Century Fund, Inc. ...........    2,219,012         3.548231           7,873,567         29%
        Evergreen Income and Growth Fund -
          Class Y ......................................      297,366         2.433557             723,657         25%
        Federated U.S. Government Securities Fund:
          2-5 Years - Institutional Shares .............      579,571         1.307818             757,973          7%
        Fidelity Capital & Income Fund .................       61,610         4.675440             288,054         14%
        Fidelity Contrafund ............................   19,667,377         1.944675          38,246,656         22%
        Fidelity Equity-Income Fund ....................    8,086,997         6.932074          56,059,662         29%
        Fidelity Magellan(R) Fund ......................    6,992,191         1.813149          12,677,884         26%
        Fidelity OTC Portfolio .........................    2,776,451         1.838136           5,103,495          9%
        Fidelity Puritan(R) Fund .......................    2,031,661         1.603749           3,258,274         22%
        The Investment Company of America(R) ...........    2,872,363         2.287566           6,570,720         29%
        MAS Funds - Fixed Income Portfolio .............      277,396         1.341206             372,045          9%
        MFS(R) Growth Opportunities Fund -
          Class A ......................................      212,160         9.053391           1,920,767         23%
        MFS(R) High Income Fund - Class A ..............      418,967         6.196477           2,596,119         12%
        Massachusetts Investors Growth
          Stock Fund - Class A .........................      117,830        16.040180           1,890,014         47%
        Nationwide(R) Fund .............................      569,519        20.790728          11,840,715         39%
        Nationwide(R) Growth Fund ......................      269,417         3.872287           1,043,260         26%
        Nationwide(R) Money Market Fund ................    3,269,252         3.017508           9,864,994          5%
        Neuberger & Berman Guardian Fund ...............    4,309,283         1.713822           7,385,344         17%
        Putnam Investors Fund - Class A ................      377,276        18.192202           6,863,481         34%
        Putnam Voyager Fund - Class A ..................    6,307,757         3.854445          24,312,902         25%
        SEI Index Funds - S&P 500 Index Portfolio ......    5,095,657         1.508603           7,687,323         32%
        Seligman Growth Fund, Inc. - Class A. ..........      124,591        12.598501           1,569,660         18%
        Short-Term Investments Trust -
          Treasury Portfolio - Institutional Class .....      238,580         1.227585             292,877          5%
        T. Rowe Price International Funds, Inc.  -
          International Stock Fund(R) ..................    4,374,310         1.204372           5,268,296          2%
        Templeton Foreign Fund - Class I ...............    4,910,891         1.289960           6,334,853          6%
                                                           ==========        =========      --------------
          Sub-Total Tier V (December 31, 1996) .........                                       271,061,474
                                                                                            ==============
        Total Contract Owners' Equity ..................                                    $1,970,794,247
                                                                                            ==============
</TABLE>



<PAGE>   64

<PAGE>   1
                          INDEPENDENT AUDITORS' REPORT


The Board of Directors
Nationwide Life Insurance Company:


We have audited the accompanying consolidated balance sheets of Nationwide Life
Insurance Company and subsidiaries (collectively the Company), a wholly owned
subsidiary of Nationwide Financial Services, Inc., as of December 31, 1997 and
1996, and the related consolidated statements of income, shareholder's equity
and cash flows for each of the years in the three-year period ended December 31,
1997. These consolidated financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
consolidated financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present
fairly, in all material respects, the financial position of Nationwide Life
Insurance Company and subsidiaries as of December 31, 1997 and 1996, and the
results of their operations and their cash flows for each of the years in the
three-year period ended December 31, 1997, in conformity with generally accepted
accounting principles.



                                                    KPMG Peat Marwick LLP


Columbus, Ohio
January 30, 1998

<PAGE>   2



               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

                           Consolidated Balance Sheets

                            (in millions of dollars)

<TABLE>
<CAPTION>

                                                                                                   December 31,
                                                                                        -----------------------------------
                                        ASSETS                                                1997               1996
                                        ------
                                                                                        -----------------   ---------------
<S>                                                                                        <C>                 <C>  
Investments:
  Securities available-for-sale, at fair value:
    Fixed maturity securities                                                               $13,204.1           $12,304.6
    Equity securities                                                                            80.4                59.1
  Mortgage loans on real estate, net                                                          5,181.6             5,272.1
  Real estate, net                                                                              311.4               265.8
  Policy loans                                                                                  415.3               371.8
  Other long-term investments                                                                    25.2                28.7
  Short-term investments                                                                        358.4                 4.8
                                                                                           ----------           ---------
                                                                                             19,576.4            18,306.9
                                                                                           ----------           ---------

Cash                                                                                            175.6                43.8
Accrued investment income                                                                       210.5               210.2
Deferred policy acquisition costs                                                             1,665.4             1,366.5
Investment in subsidiaries classified as discontinued operations                                  -                 485.7
Other assets                                                                                    438.4               426.5
Assets held in Separate Accounts                                                             37,724.4            26,926.7
                                                                                           ----------           ---------
                                                                                            $59,790.7           $47,766.3
                                                                                           ==========           =========

                         LIABILITIES AND SHAREHOLDER'S EQUITY
                         ------------------------------------

Future policy benefits and claims                                                           $18,702.8           $17,600.6
Other liabilities                                                                               885.6             1,101.1
Liabilities related to Separate Accounts                                                     37,724.4            26,926.7
                                                                                           ----------           ---------
                                                                                             57,312.8            45,628.4
                                                                                           ----------           ---------

Commitments and contingencies (notes 7 and 13)

Shareholder's equity:
  Common stock, $1 par value.  Authorized 5.0 million shares;
    3.8 million shares issued and outstanding                                                     3.8                 3.8
  Additional paid-in capital                                                                    914.7               527.9
  Retained earnings                                                                           1,312.3             1,432.6
  Unrealized gains on securities available-for-sale, net                                        247.1               173.6
                                                                                           ----------           ---------
                                                                                              2,477.9             2,137.9
                                                                                           ----------           ---------
                                                                                            $59,790.7           $47,766.3
                                                                                           ==========           =========

</TABLE>


See accompanying notes to consolidated financial statements.





<PAGE>   3


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

                        Consolidated Statements of Income

                            (in millions of dollars)


<TABLE>
<CAPTION>
                                                                                        Years ended December 31,
                                                                              ---------------------------------------------
                                                                                  1997            1996           1995
                                                                              -------------   -------------  --------------

<S>                                                                            <C>             <C>            <C>      
Revenues:
  Investment product and universal life insurance product policy charges       $   545.2       $   400.9      $   286.6
  Traditional life insurance premiums                                              205.4           198.6          199.1
  Net investment income                                                          1,409.2         1,357.8        1,294.0
  Realized gains (losses) on investments                                            11.1            (0.3)          (1.7)
  Other                                                                             46.5            35.9           20.7
                                                                              ----------      ----------     ----------
                                                                                 2,217.4         1,992.9        1,798.7
                                                                              ----------      ----------     ----------
Benefits and expenses:
  Interest credited to policyholder account balances                             1,016.6           982.3          950.3
  Other benefits and claims                                                        178.2           178.3          165.2
  Policyholder dividends on participating policies                                  40.6            41.0           39.9
  Amortization of deferred policy acquisition costs                                167.2           133.4           82.7
  Other operating expenses                                                         384.9           342.4          273.0
                                                                              ----------      ----------     ----------
                                                                                 1,787.5         1,677.4        1,511.1
                                                                              ----------      ----------     ----------

    Income from continuing operations before federal income tax expense            429.9           315.5          287.6

Federal income tax expense                                                         150.2           110.9           99.8
                                                                              ----------      ----------     ----------

    Income from continuing operations                                              279.7           204.6          187.8

Income from discontinued operations (less federal income tax expense
  of $4.5 and $7.4 in 1996 and 1995, respectively)                                   -              11.3           24.7
                                                                              ----------      ----------     ----------

    Net income                                                                 $   279.7       $   215.9      $   212.5
                                                                              ==========      ==========     ==========
</TABLE>

See accompanying notes to consolidated financial statements.





<PAGE>   4


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

                 Consolidated Statements of Shareholder's Equity

                            (in millions of dollars)


<TABLE>
<CAPTION>
                                                                                          Unrealized
                                                                                            gains
                                                                                           (losses)
                                                           Additional                   on securities       Total
                                                Common       paid-in       Retained       available-    shareholder's
                                                 stock       capital       earnings     for-sale, net       equity
                                              ----------- ------------- -------------- ---------------- -------------
<S>                                           <C>           <C>           <C>              <C>            <C>
December 31, 1994                                 $3.8       $ 606.2       $1,378.2         $(119.7)       $1,868.5

  Capital contribution                             -            51.0            -              (4.1)           46.9
  Net income                                       -             -            212.5             -             212.5
  Dividends to shareholder                         -             -             (7.5)            -              (7.5)
  Unrealized gains on securities available-
    for-sale, net                                  -             -              -             508.1           508.1
                                              --------      --------       --------        --------       ---------
December 31, 1995                                  3.8         657.2        1,583.2           384.3          2628.5

  Net income                                       -             -            215.9             -             215.9
  Dividends to shareholder                         -          (129.3)        (366.5)          (39.8)         (535.6)
  Unrealized losses on securities available-
    for-sale, net                                  -             -              -            (170.9)         (170.9)
                                              --------      --------       --------        --------       ---------
December 31, 1996                                  3.8         527.9        1,432.6           173.6         2,137.9

  Capital contribution                             -           836.8            -               -             836.8
  Net income                                       -             -            279.7             -             279.7
  Dividends to shareholder                         -          (450.0)        (400.0)            -            (850.0)
  Unrealized gains on securities available-
    for-sale, net                                  -             -              -              73.5            73.5
                                              --------      --------       --------        --------       ---------
December 31, 1997                                 $3.8       $ 914.7       $1,312.3         $ 247.1        $2,477.9
                                              ========      ========       ========        ========       =========

</TABLE>



See accompanying notes to consolidated financial statements.





<PAGE>   5


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

                      Consolidated Statements of Cash Flows

                            (in millions of dollars)

<TABLE>
<CAPTION>

                                                                                           Years ended December 31,
                                                                                ----------------------------------------------
                                                                                     1997           1996            1995
                                                                                ------------------------------ ---------------
<S>                                                                                  <C>            <C>             <C>    

Cash flows from operating activities:
  Net income                                                                     $    279.7      $   215.9       $   212.5
  Adjustments to reconcile net income to net cash provided by operating
    activities:
      Interest credited to policyholder account balances                            1,016.6          982.3           950.3
      Capitalization of deferred policy acquisition costs                            (487.9)        (422.6)         (321.3)
      Amortization of deferred policy acquisition costs                               167.2          133.4            82.7
      Amortization and depreciation                                                    (2.0)           7.0            10.2
      Realized (gains) losses on invested assets, net                                 (11.1)          (0.3)            3.3
      (Increase) decrease in accrued investment income                                 (0.3)           2.8           (16.9)
      (Increase) decrease in other assets                                             (12.7)         (38.9)           39.9
      (Decrease) increase in policy liabilities                                       (23.1)        (151.0)          123.9
      Increase in other liabilities                                                   230.6          191.4            27.0
      Other, net                                                                      (10.9)         (61.7)            1.8
                                                                                -----------      ---------        --------
        Net cash provided by operating activities                                   1,146.1          858.3         1,113.4
                                                                                -----------      ---------        --------

Cash flows from investing activities:
  Proceeds from maturity of securities available-for-sale                             993.4        1,162.8           634.6
  Proceeds from sale of securities available-for-sale                                 574.5          299.6           107.3
  Proceeds from maturity of fixed maturity securities held-to-maturity                  -              -             564.4
  Proceeds from repayments of mortgage loans on real estate                           437.3          309.0           207.8
  Proceeds from sale of real estate                                                    34.8           18.5            48.3
  Proceeds from repayments of policy loans and sale of other invested assets           22.7           22.8            53.6
  Cost of securities available-for-sale acquired                                   (2,828.1)      (1,573.6)       (1,942.4)
  Cost of fixed maturity securities held-to-maturity acquired                           -              -            (593.6)
  Cost of mortgage loans on real estate acquired                                     (752.2)        (972.8)         (796.0)
  Cost of real estate acquired                                                        (24.9)          (7.9)          (10.9)
  Policy loans issued and other invested assets acquired                              (62.5)         (57.7)          (75.9)
  Short-term investments, net                                                        (354.8)          28.0            77.8
                                                                                -----------      ---------        --------
        Net cash used in investing activities                                      (1,959.8)        (771.3)       (1,725.0)
                                                                                -----------      ---------        --------

Cash flows from financing activities:
  Proceeds from capital contributions                                                 836.8            -               -
  Cash dividends paid                                                                   -            (50.0)           (7.5)
  Increase in investment product and universal life insurance
    product account balances                                                        2,488.5        1,781.8         1,883.7
  Decrease in investment product and universal life insurance
    product account balances                                                       (2,379.8)      (1,784.5)       (1,258.7)
                                                                                -----------      ---------        --------
        Net cash provided by (used in) financing activities                           945.5          (52.7)          617.5
                                                                                -----------      ---------        --------
Net increase in cash                                                                  131.8           34.3             5.9

Cash, beginning of year                                                                43.8            9.5             3.6
                                                                                -----------      ---------        --------

Cash, end of year                                                                $    175.6      $    43.8       $     9.5
                                                                                ===========      =========       =========
</TABLE>

See accompanying notes to consolidated financial statements.





<PAGE>   6

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

                   Notes to Consolidated Financial Statements

                        December 31, 1997, 1996 and 1995


(1)      ORGANIZATION AND DESCRIPTION OF BUSINESS

         Prior to January 27, 1997, Nationwide Life Insurance Company (NLIC) was
         wholly owned by Nationwide Corporation (Nationwide Corp.). On that
         date, Nationwide Corp. contributed the outstanding shares of NLIC's
         common stock to Nationwide Financial Services, Inc. (NFS), a holding
         company formed by Nationwide Corp. in November 1996 for NLIC and the
         other companies within the Nationwide Insurance Enterprise that offer
         or distribute long-term savings and retirement products. On March 11
         1997, NFS completed an initial public offering of its Class A common
         stock.

         During 1996 and 1997, Nationwide Corp. and NFS completed certain
         transactions in anticipation of the initial public offering that
         focused the business of NFS on long-term savings and retirement
         products. On September 24, 1996, NLIC declared a dividend payable to
         Nationwide Corp. on January 1, 1997 consisting of the outstanding
         shares of common stock of certain subsidiaries that do not offer or
         distribute long-term savings or retirement products. In addition,
         during 1996, NLIC entered into two reinsurance agreements whereby all
         of NLIC's accident and health and group life insurance business was
         ceded to two affiliates effective January 1, 1996. These subsidiaries,
         through December 31, 1996, and all accident and health and group life
         insurance business have been accounted for as discontinued operations
         for all periods presented. See notes 11 and 15. Additionally, NLIC paid
         $900.0 million of dividends, $50.0 million to Nationwide Corp. on
         December 31, 1996 and $850.0 million to NFS, which then made an
         equivalent dividend to Nationwide Corp., on February 24, 1997.

         NFS contributed $836.8 million to the capital of NLIC during March
         1997.

         Wholly owned subsidiaries of NLIC include Nationwide Life and Annuity
         Insurance Company (NLAIC), Nationwide Advisory Services, Inc.,
         Nationwide Investment Services Corporation and NWE, Inc. NLIC and its
         subsidiaries are collectively referred to as "the Company."

         The Company is a leading provider of long-term savings and retirement
         products. The Company is subject to regulation by the Insurance
         Departments of states in which it is licensed, and undergoes periodic
         examinations by those departments.

(2)      SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

         The significant accounting policies followed by the Company that
         materially affect financial reporting are summarized below. The
         accompanying consolidated financial statements have been prepared in
         accordance with generally accepted accounting principles, which differ
         from statutory accounting practices prescribed or permitted by
         regulatory authorities. Annual Statements for NLIC and NLAIC, filed
         with the Department of Insurance of the State of Ohio (the Department),
         are prepared on the basis of accounting practices prescribed or
         permitted by the Department. Prescribed statutory accounting practices
         include a variety of publications of the National Association of
         Insurance Commissioners (NAIC), as well as state laws, regulations and
         general administrative rules. Permitted statutory accounting practices
         encompass all accounting practices not so prescribed. The Company has
         no material permitted statutory accounting practices.



<PAGE>   7


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued

         In preparing the consolidated financial statements, management is
         required to make estimates and assumptions that affect the reported
         amounts of assets and liabilities and the disclosures of contingent
         assets and liabilities as of the date of the consolidated financial
         statements and the reported amounts of revenues and expenses for the
         reporting period. Actual results could differ significantly from those
         estimates.

         The most significant estimates include those used in determining
         deferred policy acquisition costs, valuation allowances for mortgage
         loans on real estate and real estate investments and the liability for
         future policy benefits and claims. Although some variability is
         inherent in these estimates, management believes the amounts provided
         are adequate.

         (a)  CONSOLIDATION POLICY

              The consolidated financial statements include the accounts of NLIC
              and its wholly owned subsidiaries. Subsidiaries that are
              classified and reported as discontinued operations are not
              consolidated but rather are reported as "Investment in
              subsidiaries classified as discontinued operations" in the
              accompanying consolidated balance sheets and "Income from
              discontinued operations" in the accompanying consolidated
              statements of income. All significant intercompany balances and
              transactions have been eliminated.

         (b)  VALUATION OF INVESTMENTS AND RELATED GAINS AND LOSSES

              The Company is required to classify its fixed maturity securities
              and equity securities as either held-to-maturity,
              available-for-sale or trading. Fixed maturity securities are
              classified as held-to-maturity when the Company has the positive
              intent and ability to hold the securities to maturity and are
              stated at amortized cost. Fixed maturity securities not classified
              as held-to-maturity and all equity securities are classified as
              available-for-sale and are stated at fair value, with the
              unrealized gains and losses, net of adjustments to deferred policy
              acquisition costs and deferred federal income tax, reported as a
              separate component of shareholder's equity. The adjustment to
              deferred policy acquisition costs represents the change in
              amortization of deferred policy acquisition costs that would have
              been required as a charge or credit to operations had such
              unrealized amounts been realized. The Company has no fixed
              maturity securities classified as held-to-maturity or trading as
              of December 31, 1997 or 1996.

              Mortgage loans on real estate are carried at the unpaid principal
              balance less valuation allowances. The Company provides valuation
              allowances for impairments of mortgage loans on real estate based
              on a review by portfolio managers. The measurement of impaired
              loans is based on the present value of expected future cash flows
              discounted at the loan's effective interest rate or, as a
              practical expedient, at the fair value of the collateral, if the
              loan is collateral dependent. Loans in foreclosure and loans
              considered to be impaired are placed on non-accrual status.
              Interest received on non-accrual status mortgage loans on real
              estate is included in interest income in the period received.

              Real estate is carried at cost less accumulated depreciation and
              valuation allowances. Other long-term investments are carried on
              the equity basis, adjusted for valuation allowances. Impairment
              losses are recorded on long-lived assets used in operations when
              indicators of impairment are present and the undiscounted cash
              flows estimated to be generated by those assets are less than the
              assets' carrying amount.

              Realized gains and losses on the sale of investments are
              determined on the basis of specific security identification.
              Estimates for valuation allowances and other than temporary
              declines are included in realized gains and losses on investments.


<PAGE>   8



               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         (c)  REVENUES AND BENEFITS

              INVESTMENT PRODUCTS AND UNIVERSAL LIFE INSURANCE PRODUCTS:
              Investment products consist primarily of individual and group
              variable and fixed annuities. Universal life insurance products
              include universal life insurance, variable universal life
              insurance and other interest-sensitive life insurance policies.
              Revenues for investment products and universal life insurance
              products consist of net investment income, asset fees, cost of
              insurance, policy administration and surrender charges that have
              been earned and assessed against policy account balances during
              the period. Policy benefits and claims that are charged to expense
              include interest credited to policy account balances and benefits
              and claims incurred in the period in excess of related policy
              account balances.

              TRADITIONAL LIFE INSURANCE PRODUCTS: Traditional life insurance
              products include those products with fixed and guaranteed premiums
              and benefits and consist primarily of whole life insurance,
              limited-payment life insurance, term life insurance and certain
              annuities with life contingencies. Premiums for traditional life
              insurance products are recognized as revenue when due. Benefits
              and expenses are associated with earned premiums so as to result
              in recognition of profits over the life of the contract. This
              association is accomplished by the provision for future policy
              benefits and the deferral and amortization of policy acquisition
              costs.

         (d)  DEFERRED POLICY ACQUISITION COSTS

              The costs of acquiring new business, principally commissions,
              certain expenses of the policy issue and underwriting department
              and certain variable sales expenses have been deferred. For
              investment products and universal life insurance products,
              deferred policy acquisition costs are being amortized with
              interest over the lives of the policies in relation to the present
              value of estimated future gross profits from projected interest
              margins, asset fees, cost of insurance, policy administration and
              surrender charges. For years in which gross profits are negative,
              deferred policy acquisition costs are amortized based on the
              present value of gross revenues. Deferred policy acquisition costs
              are adjusted to reflect the impact of unrealized gains and losses
              on fixed maturity securities available-for-sale as described in
              note 2(b). For traditional life insurance products, these deferred
              policy acquisition costs are predominantly being amortized with
              interest over the premium paying period of the related policies in
              proportion to the ratio of actual annual premium revenue to the
              anticipated total premium revenue. Such anticipated premium
              revenue was estimated using the same assumptions as were used for
              computing liabilities for future policy benefits.

         (e)  SEPARATE ACCOUNTS

              Separate Account assets and liabilities represent contractholders'
              funds which have been segregated into accounts with specific
              investment objectives. For all but $365.5 million of separate
              account assets, the investment income and gains or losses of these
              accounts accrue directly to the contractholders. The activity of
              the Separate Accounts is not reflected in the consolidated
              statements of income and cash flows except for the fees the
              Company receives.

         (f)  FUTURE POLICY BENEFITS

              Future policy benefits for investment products in the accumulation
              phase, universal life insurance and variable universal life
              insurance policies have been calculated based on participants'
              contributions plus interest credited less applicable contract
              charges.

              Future policy benefits for traditional life insurance policies
              have been calculated using a net level premium method based on
              estimates of mortality, morbidity, investment yields and
              withdrawals which were used or which were being experienced at the
              time the policies were issued, rather than the assumptions
              prescribed by state regulatory authorities. See note 4.


<PAGE>   9


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         (g)  PARTICIPATING BUSINESS

              Participating business represents approximately 50% in 1997 (52%
              in 1996 and 54% in 1995) of the Company's life insurance in force,
              77% in 1997 (78% in 1996 and 79% in 1995) of the number of life
              insurance policies in force, and 27% in 1997 (40% in 1996 and 47%
              in 1995) of life insurance statutory premiums. The provision for
              policyholder dividends is based on current dividend scales and is
              included in "Future policy benefits and claims" in the
              accompanying consolidated balance sheets.

         (h)  FEDERAL INCOME TAX

              The Company files a consolidated federal income tax return with
              Nationwide Mutual Insurance Company (NMIC), the majority
              shareholder of Nationwide Corp. The members of the consolidated
              tax return group have a tax sharing arrangement which provides, in
              effect, for each member to bear essentially the same federal
              income tax liability as if separate tax returns were filed.

              The Company utilizes the asset and liability method of accounting
              for income tax. Under this method, deferred tax assets and
              liabilities are recognized for the future tax consequences
              attributable to differences between the financial statement
              carrying amounts of existing assets and liabilities and their
              respective tax bases and operating loss and tax credit
              carryforwards. Deferred tax assets and liabilities are measured
              using enacted tax rates expected to apply to taxable income in the
              years in which those temporary differences are expected to be
              recovered or settled. Under this method, the effect on deferred
              tax assets and liabilities of a change in tax rates is recognized
              in income in the period that includes the enactment date.
              Valuation allowances are established when necessary to reduce the
              deferred tax assets to the amounts expected to be realized.

         (i)  REINSURANCE CEDED

              Reinsurance premiums ceded and reinsurance recoveries on benefits
              and claims incurred are deducted from the respective income and
              expense accounts. Assets and liabilities related to reinsurance
              ceded are reported on a gross basis. All of the Company's accident
              and health and group life insurance business is ceded to
              affiliates and is accounted for as discontinued operations. See
              notes 11 and 15.

         (j)  RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

              STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO. 130 - REPORTING
              COMPREHENSIVE INCOME was issued in June 1997 and is effective for
              fiscal years beginning after December 15, 1997. The statement
              establishes standards for reporting and display of comprehensive
              income and its components in a full set of financial statements.
              Comprehensive income includes all changes in equity during a
              period except those resulting from investments by shareholders and
              distributions to shareholders and includes net income.
              Comprehensive income would be reported in addition to earnings
              amounts currently presented. The Company will adopt the statement
              and begin reporting comprehensive income in the first quarter of
              1998.

         (k)  RECLASSIFICATION

              Certain items in the 1996 and 1995 consolidated financial
              statements have been reclassified to conform to the 1997
              presentation.


<PAGE>   10


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued




(3)      INVESTMENTS

         The amortized cost, gross unrealized gains and losses and estimated
         fair value of securities available-for-sale as of December 31, 1997 and
         1996 were:
<TABLE>
<CAPTION>

                                                                                     Gross         Gross
                                                                    Amortized     unrealized    unrealized     Estimated
             (in millions of dollars)                                 cost           gains        losses       fair value
                                                                 --------------  ------------  -------------  ------------
<S>                                                                 <C>           <C>          <C>              <C> 
             December 31, 1997:
               Fixed maturity securities:
                 U.S. Treasury securities and obligations of U.S.
                   government corporations and agencies            $     305.1    $     8.6      $    -        $     313.7
                 Obligations of states and political subdivisions          1.6          -             -                1.6
                 Debt securities issued by foreign governments            93.3          2.7          (0.2)            95.8
                 Corporate securities                                  8,698.7        355.5         (11.5)         9,042.7
                 Mortgage-backed securities                            3,634.2        118.6          (2.5)         3,750.3
                                                                  ------------    ---------     ---------      -----------
                     Total fixed maturity securities                  12,732.9        485.4         (14.2)        13,204.1
               Equity securities                                          67.8         12.9          (0.3)            80.4
                                                                  ------------    ---------     ---------      -----------
                                                                   $  12,800.7    $   498.3      $  (14.5)     $  13,284.5
                                                                  ============    =========     =========      ===========

             December 31, 1996:
               Fixed maturity securities:
                 U.S. Treasury securities and obligations of U.S.
                   government corporations and agencies            $     275.7    $     4.8      $   (1.3)     $     279.2
                 Obligations of states and political subdivisions          6.2          0.5           -                6.7
                 Debt securities issued by foreign governments           100.7          2.1          (0.9)           101.9
                 Corporate securities                                  7,999.3        285.9         (33.7)         8,251.5
                 Mortgage-backed securities                            3,589.0         91.4         (15.1)         3,665.3
                                                                  ------------    ---------     ---------      -----------
                     Total fixed maturity securities                  11,970.9        384.7         (51.0)        12,304.6
               Equity securities                                          43.9         15.6          (0.4)            59.1
                                                                  ------------    ---------     ---------      -----------
                                                                   $  12,014.8    $   400.3      $  (51.4)     $  12,363.7
                                                                  ============    =========     =========      ===========
</TABLE>


         The amortized cost and estimated fair value of fixed maturity
         securities available-for-sale as of December 31, 1997, by contractual
         maturity, are shown below. Expected maturities will differ from
         contractual maturities because borrowers may have the right to call or
         prepay obligations with or without call or prepayment penalties.

<TABLE>
<CAPTION>

                                                                                 Amortized        Estimated
             (in millions of dollars)                                               cost          fair value
                                                                              --------------      ----------
<S>                                                                               <C>              <C>        
             Fixed maturity securities available for sale:
               Due in one year or less                                            $     419.2      $     422.1
               Due after one year through five years                                  4,573.5          4,708.4
               Due after five years through ten years                                 2,772.6          2,879.7
               Due after ten years                                                    1,333.4          1,443.6
                                                                                  -----------      -----------
                                                                                      9,098.7          9,453.8
             Mortgage-backed securities                                               3,634.2          3,750.3
                                                                                  -----------      -----------
                                                                                  $  12,732.9      $  13,204.1
                                                                                  ===========      ===========
</TABLE>


<PAGE>   11

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         The components of unrealized gains on securities available-for-sale,
         net, were as follows as of December 31:

<TABLE>
<CAPTION>

             (in millions of dollars)                                                1997          1996
                                                                                 -----------     ----------
<S>                                                                                  <C>            <C>   
             Gross unrealized gains                                                 $ 483.8        $349.0
             Adjustment to deferred policy acquisition costs                         (103.7)        (81.9)
             Deferred federal income tax                                             (133.0)        (93.5)
                                                                                   --------       -------
                                                                                    $ 247.1        $173.6
                                                                                   ========       =======
</TABLE>

         An analysis of the change in gross unrealized gains (losses) on
         securities available-for-sale and fixed maturity securities
         held-to-maturity follows for the years ended December 31:
<TABLE>
<CAPTION>


             (in millions of dollars)                                         1997          1996           1995
                                                                          -----------   -------------   -----------
<S>                                                                          <C>           <C>            <C>
             Securities available-for-sale:
               Fixed maturity securities                                      $137.5       $(289.2)       $876.3
               Equity securities                                                (2.7)          8.9           -
             Fixed maturity securities held-to-maturity                          -             -            75.6
                                                                             -------       -------       -------
                                                                              $134.8       $(280.3)      $ 951.9
                                                                             =======       =======       =======
</TABLE>

         Proceeds from the sale of securities available-for-sale during 1997,
         1996 and 1995 were $574.5 million, $299.6 million and $107.3 million,
         respectively. During 1997, gross gains of $9.9 million ($6.6 million
         and $4.8 million in 1996 and 1995, respectively) and gross losses of
         $18.0 million ($6.9 million and $2.1 million in 1996 and 1995,
         respectively) were realized on those sales. In addition, gross gains of
         $15.1 million and gross losses of $0.7 million were realized in 1997
         when the Company paid a dividend to NFS, which then made an equivalent
         dividend to Nationwide Corp., consisting of securities having an
         aggregate fair value of $850.0 million.

         During 1995, the Company transferred fixed maturity securities
         classified as held-to-maturity with amortized cost of $25.4 million to
         available-for-sale securities due to evidence of a significant
         deterioration in the issuer's creditworthiness. The transfer of those
         fixed maturity securities resulted in a gross unrealized loss of $3.5
         million.

         As permitted by the Financial Accounting Standards Board's Special
         Report, A GUIDE TO IMPLEMENTATION OF STATEMENT 115 ON ACCOUNTING FOR
         CERTAIN INVESTMENTS IN DEBT AND EQUITY SECURITIES, issued in November
         1995, the Company transferred nearly all of its fixed maturity
         securities previously classified as held-to-maturity to
         available-for-sale. As of December 14, 1995, the date of transfer, the
         fixed maturity securities had amortized cost of $3.32 billion,
         resulting in a gross unrealized gain of $155.9 million.

         The recorded investment of mortgage loans on real estate considered to
         be impaired as of December 31, 1997 was $19.9 million ($51.8 million as
         of December 31, 1996), which includes $3.9 million ($41.7 million as of
         December 31, 1996) of impaired mortgage loans on real estate for which
         the related valuation allowance was $0.1 million ($8.5 million as of
         December 31, 1996) and $16.0 million ($10.1 million as of December 31,
         1996) of impaired mortgage loans on real estate for which there was no
         valuation allowance. During 1997, the average recorded investment in
         impaired mortgage loans on real estate was approximately $31.8 million
         ($39.7 million in 1996) and interest income recognized on those loans
         was $1.0 million ($2.1 million in 1996), which is equal to interest
         income recognized using a cash-basis method of income recognition.


<PAGE>   12


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         Activity in the valuation allowance account for mortgage loans on real
         estate is summarized for the years ended December 31:
<TABLE>
<CAPTION>

             (in millions of dollars)                                               1997          1996
                                                                                ------------- -------------
<S>                                                                                <C>            <C>
             Allowance, beginning of year                                            $51.0         $49.1
               (Reductions) additions charged to operations                           (1.2)          4.5
               Direct write-downs charged against the allowance                       (7.3)         (2.6)
                                                                                    ------        ------
             Allowance, end of year                                                  $42.5         $51.0
                                                                                    ======        ======
</TABLE>

         Real estate is presented at cost less accumulated depreciation of $45.1
         million as of December 31, 1997 ($30.3 million as of December 31, 1996)
         and valuation allowances of $11.1 million as of December 31, 1997
         ($15.2 million as of December 31, 1996).

         Investments that were non-income producing for the twelve month period
         preceding December 31, 1997 amounted to $19.4 million ($26.8 million
         for 1996) and consisted of $3.0 million ($0.2 million in 1996) in
         securities available-for-sale, $16.4 million ($20.6 million in 1996) in
         real estate and none ($5.9 million in 1996) in other long-term
         investments.

         An analysis of investment income by investment type follows for the
         years ended December 31:

<TABLE>
<CAPTION>
             (in millions of dollars)                                      1997             1996           1995
                                                                        -----------      ---------      ---------   
<S>                                                                      <C>             <C>            <C>      
             Gross investment income:
               Securities available-for-sale:
                 Fixed maturity securities                                $  911.6        $  917.1       $  685.8
                 Equity securities                                             0.8             1.3            1.3
               Fixed maturity securities held-to-maturity                      -               -            201.8
               Mortgage loans on real estate                                 457.7           432.8          395.5
               Real estate                                                    42.9            44.3           38.3
               Short-term investments                                         22.7             4.2           10.6
               Other                                                          21.0             4.0            7.2
                                                                          --------        --------       --------
                   Total investment income                                 1,456.7         1,403.7        1,340.5
             Less investment expenses                                         47.5            45.9           46.5
                                                                          --------        --------       --------
                   Net investment income                                  $1,409.2        $1,357.8       $1,294.0
                                                                          ========        ========       ========
</TABLE>

         An analysis of realized gains (losses) on investments, net of valuation
         allowances, by investment type follows for the years ended December 31:
<TABLE>
<CAPTION>

             (in millions of dollars)                                       1997            1996           1995
                                                                         ---------       ---------       --------    
<S>                                                                           <C>            <C>            <C>  
             Securities available-for-sale:
               Fixed maturity securities                                    $ 3.6           $(3.5)         $ 4.2
               Equity securities                                              2.7             3.2            3.4
             Mortgage loans on real estate                                    1.6            (4.1)          (7.1)
             Real estate and other                                            3.2             4.1           (2.2)
                                                                           ------          ------         ------
                                                                            $11.1           $(0.3)         $(1.7)
                                                                           ======          ======         ======
</TABLE>

         Fixed  maturity securities with an amortized cost of $6.2 million as 
         of  December  31,  1997 and 1996 were on deposit with various
         regulatory agencies as required by law.


<PAGE>   13



               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


(4)      FUTURE POLICY BENEFITS AND CLAIMS

         The liability for future policy benefits for investment contracts
         represents approximately 86% and 87% of the total liability for future
         policy benefits as of December 31, 1997 and 1996, respectively. The
         average interest rate credited on investment product policies was
         approximately 6.1%, 6.3% and 6.6% for the years ended December 31,
         1997, 1996 and 1995, respectively.

         The liability for future policy benefits for traditional life insurance
         policies has been established based upon the following assumptions:

              INTEREST RATES: Interest rates vary by issue year and were 6.9%
              and 6.6% in 1997 and 1996, respectively. Interest rates have
              generally ranged from 6.0% to 10.5% for previous issue years.

              WITHDRAWALS: Rates, which vary by issue age, type of coverage and
              policy  duration, are based on Company experience.

              MORTALITY: Mortality and morbidity rates are based on published 
              tables, modified for the Company's actual experience.

         The Company has entered into a reinsurance contract to cede a portion
         of its general account individual annuity business to The Franklin Life
         Insurance Company (Franklin). Total recoveries due from Franklin were
         $220.2 million and $240.5 million as of December 31, 1997 and 1996,
         respectively. The contract is immaterial to the Company's results of
         operations. The ceding of risk does not discharge the original insurer
         from its primary obligation to the policyholder. Under the terms of the
         contract, Franklin has established a trust as collateral for the
         recoveries. The trust assets are invested in investment grade
         securities, the market value of which must at all times be greater than
         or equal to 102% of the reinsured reserves.

         The Company has reinsurance agreements with certain affiliates as
         described in note 11. All other reinsurance agreements are not material
         to either premiums or reinsurance recoverables.


(5)      FEDERAL INCOME TAX

         The  Company's current federal income tax liability was $60.1 million 
         and $30.2 million as of December 31, 1997 and 1996, respectively.


<PAGE>   14


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         The tax effects of temporary differences that give rise to significant
         components of the net deferred tax liability as of December 31, 1997
         and 1996 are as follows:
<TABLE>
<CAPTION>

             (in millions of dollars)                                        1997            1996
                                                                          ----------      ----------  
<S>                                                                        <C>             <C>  
             Deferred tax assets:
               Future policy benefits                                       $200.1          $183.0
               Liabilities in Separate Accounts                              242.0           188.4
               Mortgage loans on real estate and real estate                  19.0            23.4
               Other assets and other liabilities                             59.2            53.7
                                                                           -------          ------
                 Total gross deferred tax assets                             520.3           448.5
                 Less valuation allowance                                     (7.0)           (7.0)
                                                                           -------          ------
                 Net deferred tax assets                                     513.3           441.5
                                                                           -------          ------

             Deferred tax liabilities:
               Deferred policy acquisition costs                             480.5           399.3
               Fixed maturity securities                                     193.3           133.2
               Deferred tax on realized investment gains                      40.1            37.6
               Equity securities and other long-term investments               7.5             8.2
               Other                                                          22.2            25.4
                                                                           -------          ------
                 Total gross deferred tax liabilities                        743.6           603.7
                                                                           -------          ------
                 Net deferred tax liability                                 $230.3          $162.2
                                                                           =======          ======
</TABLE>

         In assessing the realizability of deferred tax assets, management
         considers whether it is more likely than not that some portion of the
         total gross deferred tax assets will not be realized. Nearly all future
         deductible amounts can be offset by future taxable amounts or recovery
         of federal income tax paid within the statutory carryback period. There
         has been no change in the valuation allowance for the years ended
         December 31, 1997, 1996 and 1995.

         Federal income tax expense attributable to income from continuing
         operations for the years ended December 31 was as follows:

<TABLE>
<CAPTION>
           (in millions of dollars)                                   1997            1996            1995
                                                                   ---------       ---------       ---------  
<S>                                                                 <C>             <C>             <C> 
           Currently payable                                         $121.7          $116.5           $88.7
           Deferred tax expense (benefit)                              28.5            (5.6)           11.1
                                                                     ------          ------          ------
                                                                     $150.2          $110.9           $99.8
                                                                     ======          ======          ======
</TABLE>

         Total federal income tax expense for the years ended December 31, 1997,
         1996 and 1995 differs from the amount computed by applying the U.S.
         federal income tax rate to income before tax as follows:
<TABLE>
<CAPTION>

                                                           1997                     1996                     1995
                                                   ----------------------   ----------------------   ----------------------
         (in millions of dollars)                     Amount        %          Amount        %          Amount        %
                                                   ----------------------   ------------- --------   ------------- --------
<S>                                                   <C>         <C>          <C>         <C>          <C>         <C> 
         Computed (expected) tax expense               $150.5      35.0         $110.4      35.0         $100.6      35.0
         Tax exempt interest and dividends
           received deduction                             -         0.0           (0.2)     (0.1)           -         0.0
         Other, net                                      (0.3)     (0.1)           0.7       0.3           (0.8)     (0.3)
                                                       ------      ----         ------      ----         ------      ----
             Total (effective rate of each year)       $150.2      34.9         $110.9      35.2         $ 99.8      34.7
                                                       ======      ====         ======      ====         ======      ====
</TABLE>

         Total federal income tax paid was $91.8 million,  $115.8 million and 
         $51.8 million during the years ended December 31, 1997, 1996 and 1995,
         respectively.



<PAGE>   15


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


(6)      FAIR VALUE OF FINANCIAL INSTRUMENTS

         The following disclosures summarize the carrying amount and estimated
         fair value of the Company's financial instruments. Certain assets and
         liabilities are specifically excluded from the disclosure requirements
         of financial instruments. Accordingly, the aggregate fair value amounts
         presented do not represent the underlying value of the Company.

         The fair value of a financial instrument is defined as the amount at
         which the financial instrument could be exchanged in a current
         transaction between willing parties. In cases where quoted market
         prices are not available, fair value is to be based on estimates using
         present value or other valuation techniques. Many of the Company's
         assets and liabilities subject to the disclosure requirements are not
         actively traded, requiring fair values to be estimated by management
         using present value or other valuation techniques. These techniques are
         significantly affected by the assumptions used, including the discount
         rate and estimates of future cash flows. Although fair value estimates
         are calculated using assumptions that management believes are
         appropriate, changes in assumptions could cause these estimates to vary
         materially. In that regard, the derived fair value estimates cannot be
         substantiated by comparison to independent markets and, in many cases,
         could not be realized in the immediate settlement of the instruments.

         Although insurance contracts, other than policies such as annuities
         that are classified as investment contracts, are specifically exempted
         from the disclosure requirements, estimated fair value of policy
         reserves on life insurance contracts is provided to make the fair value
         disclosures more meaningful.

         The tax ramifications of the related unrealized gains and losses can
         have a significant effect on fair value estimates and have not been
         considered in the estimates.

         The following methods and assumptions were used by the Company in
         estimating its fair value disclosures:

              FIXED MATURITY AND EQUITY SECURITIES: The fair value for fixed
              maturity securities is based on quoted market prices, where
              available. For fixed maturity securities not actively traded, fair
              value is estimated using values obtained from independent pricing
              services or, in the case of private placements, is estimated by
              discounting expected future cash flows using a current market rate
              applicable to the yield, credit quality and maturity of the
              investments. The fair value for equity securities is based on
              quoted market prices.

              MORTGAGE LOANS ON REAL ESTATE, NET: The fair value for mortgage
              loans on real estate is estimated using discounted cash flow
              analyses, using interest rates currently being offered for similar
              loans to borrowers with similar credit ratings. Loans with similar
              characteristics are aggregated for purposes of the calculations.
              Fair value for mortgage loans in default is the estimated fair
              value of the underlying collateral.

              POLICY LOANS, SHORT-TERM INVESTMENTS AND CASH: The carrying amount
              reported in the consolidated balance sheets for these instruments
              approximates their fair value.

              SEPARATE ACCOUNT ASSETS AND LIABILITIES: The fair value of assets
              held in Separate Accounts is based on quoted market prices. The
              fair value of liabilities related to Separate Accounts is the
              amount payable on demand, which includes certain surrender
              charges.

              INVESTMENT CONTRACTS: The fair value for the Company's liabilities
              under investment type contracts is disclosed using two methods.
              For investment contracts without defined maturities, fair value is
              the amount payable on demand. For investment contracts with known
              or determined maturities, fair value is estimated using discounted
              cash flow analysis. Interest rates used are similar to currently
              offered contracts with maturities consistent with those remaining
              for the contracts being valued.


<PAGE>   16

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


              POLICY RESERVES ON LIFE INSURANCE CONTRACTS: Included are
              disclosures for individual life insurance, universal life
              insurance and supplementary contracts with life contingencies for
              which the estimated fair value is the amount payable on demand.
              Also included are disclosures for the Company's limited payment
              policies, which the Company has used discounted cash flow analyses
              similar to those used for investment contracts with known
              maturities to estimate fair value.

              COMMITMENTS TO EXTEND CREDIT: Commitments to extend credit have
              nominal fair value because of the short-term nature of such
              commitments. See note 13.

           Carrying amount and estimated fair value of financial instruments
           subject to disclosure requirements and policy reserves on life
           insurance contracts were as follows as of December 31:
<TABLE>
<CAPTION>


                                                                         1997                              1996
                                                             ------------------------------   -------------------------------
                                                                Carrying      Estimated          Carrying       Estimated
               (in millions of dollars)                          amount       fair value          amount        fair value
                                                             ------------------------------   --------------- ---------------

<S>                                                             <C>            <C>               <C>             <C>    
               Assets:
                 Investments:
                   Securities available-for-sale:
                     Fixed maturity securities                  $13,204.1      $13,204.1         $12,304.6       $12,304.6
                     Equity securities                               80.4           80.4              59.1            59.1
                   Mortgage loans on real estate, net             5,181.6        5,509.7           5,272.1         5,397.9
                   Policy loans                                     415.3          415.3             371.8           371.8
                   Short-term investments                           358.4          358.4               4.8             4.8
                 Cash                                               175.6          175.6              43.8            43.8
                 Assets held in Separate Accounts                37,724.4       37,724.4          26,926.7        26,926.7

               Liabilities:
                 Investment contracts                            14,708.2       14,322.1          13,914.4        13,484.5
                 Policy reserves on life insurance contracts      3,345.4        3,182.4           3,392.8         3,197.5
                 Liabilities related to Separate Accounts        37,724.4       36,747.0          26,926.7        26,164.2


</TABLE>


(7)      RISK DISCLOSURES

         The following is a description of the most significant risks facing
         life insurers and how the Company mitigates those risks:

         LEGAL/REGULATORY RISK: The risk that changes in the legal or regulatory
         environment in which an insurer operates will result in increased
         competition, reduce demand for a company's products, or create
         additional expenses not anticipated by the insurer in pricing its
         products. The Company mitigates this risk by offering a wide range of
         products and by operating throughout the United States, thus reducing
         its exposure to any single product or jurisdiction, and also by
         employing underwriting practices which identify and minimize the
         adverse impact of this risk.

         CREDIT RISK: The risk that issuers of securities owned by the Company
         or mortgagors on mortgage loans on real estate owned by the Company
         will default or that other parties, including reinsurers, which owe the
         Company money, will not pay. The Company minimizes this risk by
         adhering to a conservative investment strategy, by maintaining
         reinsurance and credit and collection policies and by providing for any
         amounts deemed uncollectible.


<PAGE>   17

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         INTEREST RATE RISK: The risk that interest rates will change and cause
         a decrease in the value of an insurer's investments. This change in
         rates may cause certain interest-sensitive products to become
         uncompetitive or may cause disintermediation. The Company mitigates
         this risk by charging fees for non-conformance with certain policy
         provisions, by offering products that transfer this risk to the
         purchaser, and/or by attempting to match the maturity schedule of its
         assets with the expected payouts of its liabilities. To the extent that
         liabilities come due more quickly than assets mature, an insurer would
         have to borrow funds or sell assets prior to maturity and potentially
         recognize a gain or loss.

         FINANCIAL INSTRUMENTS WITH OFF-BALANCE-SHEET RISK: The Company is a
         party to financial instruments with off-balance-sheet risk in the
         normal course of business through management of its investment
         portfolio. These financial instruments include commitments to extend
         credit in the form of loans. These instruments involve, to varying
         degrees, elements of credit risk in excess of amounts recognized on the
         consolidated balance sheets.

         Commitments to fund fixed rate mortgage loans on real estate are
         agreements to lend to a borrower, and are subject to conditions
         established in the contract. Commitments generally have fixed
         expiration dates or other termination clauses and may require payment
         of a deposit. Commitments extended by the Company are based on
         management's case-by-case credit evaluation of the borrower and the
         borrower's loan collateral. The underlying mortgage property represents
         the collateral if the commitment is funded. The Company's policy for
         new mortgage loans on real estate is to lend no more than 75% of
         collateral value. Should the commitment be funded, the Company's
         exposure to credit loss in the event of nonperformance by the borrower
         is represented by the contractual amounts of these commitments less the
         net realizable value of the collateral. The contractual amounts also
         represent the cash requirements for all unfunded commitments.
         Commitments on mortgage loans on real estate of $341.4 million
         extending into 1998 were outstanding as of December 31, 1997. The
         Company also had $63.9 million of commitments to purchase fixed
         maturity securities outstanding as of December 31, 1997.

         SIGNIFICANT CONCENTRATIONS OF CREDIT RISK: The Company grants mainly
         commercial mortgage loans on real estate to customers throughout the
         United States. The Company has a diversified portfolio with no more
         than 20% (21% in 1996) in any geographic area and no more than 2% (2%
         in 1996) with any one borrower as of December 31, 1997. As of December
         31, 1997, 46% (44% in 1996) of the remaining principal balance of the
         Company's commercial mortgage loan portfolio financed retail
         properties.

         The Company had a significant reinsurance recoverable balance from one
         reinsurer as of December 31, 1997 and 1996. See note 4.

(8)      PENSION PLAN

         The Company is a participant, together with other affiliated companies,
         in a pension plan covering all employees who have completed at least
         one year of service. Benefits are based upon the highest average annual
         salary of a specified number of consecutive years of the last ten years
         of service. The Company funds pension costs accrued for direct
         employees plus an allocation of pension costs accrued for employees of
         affiliates whose work efforts benefit the Company.

         Effective January 1, 1995, the plan was amended to provide enhanced
         benefits for participants who met certain eligibility requirements and
         elected early retirement no later than March 15, 1995. The entire cost
         of the enhanced benefit was borne by NMIC and certain of its property
         and casualty insurance company affiliates.


<PAGE>   18

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         Effective December 31, 1995, the Nationwide Insurance Companies and
         Affiliates Retirement Plan was merged with the Farmland Mutual
         Insurance Company Employees' Retirement Plan and the Wausau Insurance
         Companies Pension Plan to form the Nationwide Insurance Enterprise
         Retirement Plan (the Retirement Plan). Immediately prior to the merger,
         the plans were amended to provide consistent benefits for service after
         January 1, 1996. These amendments had no significant impact on the
         accumulated benefit obligation or projected benefit obligation as of
         December 31, 1995.

         Pension costs charged to operations by the Company  during the years
         ended  December 31, 1997,  1996 and 1995 were $7.5 million, $7.4
         million and $10.5 million, respectively.

         The Company had no net accrued pension expense as of December 31, 1997
         ($1.1 million as of December 31, 1996).

         The net periodic pension cost for the Retirement Plan as a whole for
         the years ended December 31, 1997 and 1996 and for the Nationwide
         Insurance Companies and Affiliates Retirement Plan as a whole for the
         year ended December 31, 1995 follows:
<TABLE>
<CAPTION>

              (in millions of dollars)                                   1997             1996              1995
                                                                     -----------      -----------       -----------  

<S>                                                                   <C>              <C>               <C>     
              Service cost (benefits earned during the period)        $   77.3         $   75.5          $   64.5
              Interest cost on projected benefit obligation              118.6            105.5              95.3
              Actual return on plan assets                              (328.0)          (210.6)           (249.3)
              Net amortization and deferral                              196.4            101.8             143.4
                                                                      --------         --------          --------
                                                                      $   64.3         $   72.2          $   53.9
                                                                      ========         ========          ========
</TABLE>

         Basis for measurements, net periodic pension cost:

<TABLE>
<CAPTION>

                                                                        1997             1996              1995
                                                                    -----------      -----------       -----------  

<S>                                                                    <C>              <C>               <C>  
              Weighted average discount rate                           6.50%            6.00%             7.50%
              Rate of increase in future compensation levels           4.75%            4.25%             6.25%
              Expected long-term rate of return on plan assets         7.25%            6.75%             8.75%
</TABLE>

         Information regarding the funded status of the Retirement Plan as a 
         whole as of  December  31,  1997 and 1996 follows:
<TABLE>
<CAPTION>

              (in millions of dollars)                                           1997              1996
                                                                             -----------       -----------  
<S>                                                                           <C>               <C> 
              Accumulated benefit obligation:
                Vested                                                         $1,547.5          $1,338.6
                Nonvested                                                          13.5              11.1
                                                                               --------         ---------
                                                                               $1,561.0          $1,349.7
                                                                               ========         =========

              Net accrued pension expense:
                Projected benefit obligation for services rendered to date     $2,033.8          $1,847.8
                Plan assets at fair value                                       2,212.9           1,947.9
                                                                              ---------         ---------
                  Plan assets in excess of projected benefit obligation           179.1             100.1
                Unrecognized prior service cost                                    34.7              37.9
                Unrecognized net gains                                           (330.7)           (202.0)
                Unrecognized net asset at transition                               33.3              37.2
                                                                              ---------         ---------
                                                                              $   (83.6)        $   (26.8)
                                                                              =========         =========
</TABLE>

<PAGE>   19


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         Basis for measurements, funded status of plan:
<TABLE>
<CAPTION>

                                                                                1997              1996
                                                                             -----------       -----------  

<S>                                                                          <C>               <C>  
              Weighted average discount rate                                   6.00%             6.50%
              Rate of increase in future compensation levels                   4.25%             4.75%

</TABLE>
         Assets of the Retirement Plan are invested in group annuity contracts
         of NLIC and Employers Life Insurance Company of Wausau (ELICW).

(9)      POSTRETIREMENT BENEFITS OTHER THAN PENSIONS

         In addition to the defined benefit pension plan, the Company, together
         with other affiliated companies, participates in life and health care
         defined benefit plans for qualifying retirees. Postretirement life and
         health care benefits are contributory and generally available to full
         time employees who have attained age 55 and have accumulated 15 years
         of service with the Company after reaching age 40. Postretirement
         health care benefit contributions are adjusted annually and contain
         cost-sharing features such as deductibles and coinsurance. In addition,
         there are caps on the Company's portion of the per-participant cost of
         the postretirement health care benefits. These caps can increase
         annually, but not more than three percent. The Company's policy is to
         fund the cost of health care benefits in amounts determined at the
         discretion of management. Plan assets are invested primarily in group
         annuity contracts of NLIC.

         The Company elected to immediately recognize its estimated accumulated
         postretirement benefit obligation (APBO), however, certain affiliated
         companies elected to amortize their initial transition obligation over
         periods ranging from 10 to 20 years.

         The Company's accrued postretirement benefit expense as of December 31,
         1997 and 1996 was $36.5 million and $34.9 million, respectively, and
         the net periodic postretirement benefit cost (NPPBC) for 1997, 1996 and
         1995 was $3.0 million, $3.3 million and $3.1 million, respectively.

         Information regarding the funded status of the plan as a whole as of
         December 31, 1997 and 1996 follows:

<TABLE>
<CAPTION>

             (in millions of dollars)                                                         1997             1996
                                                                                          -----------       -----------  
<S>                                                                                        <C>               <C>    
             Accrued postretirement benefit expense:
               Retirees                                                                    $   93.3          $   93.0
               Fully eligible, active plan participants                                        31.6              23.7
               Other active plan participants                                                 113.0              84.0
                                                                                           --------          --------
                 Accumulated postretirement benefit obligation                                237.9             200.7
               Plan assets at fair value                                                       69.2              63.0
                                                                                           --------          --------
                 Plan assets less than accumulated postretirement benefit obligation         (168.7)           (137.7)
               Unrecognized transition obligation of affiliates                                 1.5               1.7
               Unrecognized net losses (gains)                                                  1.6             (23.2)
                                                                                           --------          --------
                                                                                            $(165.6)          $(159.2)
                                                                                           ========          ========
</TABLE>


<PAGE>   20


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         The amount of NPPBC for the plan as a whole for the years ended
         December 31, 1997, 1996 and 1995 was as follows:
<TABLE>
<CAPTION>
             (in millions of dollars)                            1997          1996          1995
                                                              -----------   ------------  ------------
<S>                                                                <C>           <C>           <C>  
             Service cost (benefits attributed to employee
               service during the year)                          $  7.0        $  6.5        $  6.2
             Interest cost on accumulated postretirement
               benefit obligation                                  14.0          13.7          14.2
             Actual return on plan assets                          (3.6)         (4.3)         (2.7)
             Amortization of unrecognized transition
               obligation of affiliates                             0.2           0.2           3.0
             Net amortization and deferral                         (0.5)          1.8          (1.6)
                                                                -------        ------        ------
                                                                  $17.1         $17.9         $19.1
                                                                =======        ======        ======
</TABLE>

         Actuarial assumptions used for the measurement of the APBO and the
         NPPBC for 1997, 1996 and 1995 were as follows:
<TABLE>
<CAPTION>

                                                                 1997          1996          1995
                                                              -----------   -----------   -----------
<S>                                                           <C>           <C>           <C>     
             APBO:
               Discount rate                                  6.70%         7.25%         6.75%
               Assumed health care cost trend rate:
                 Initial rate                                12.13%        11.00%        11.00%
                 Ultimate rate                                6.12%         6.00%         6.00%
                 Uniform declining period                   12 Years      12 Years      12 Years

             NPPBC:
               Discount rate                                  7.25%         6.65%         8.00%
               Long term rate of return on plan
                 assets, net of tax                           5.89%         4.80%         8.00%
               Assumed health care cost trend rate:
                 Initial rate                                11.00%        11.00%        10.00%
                 Ultimate rate                                6.00%         6.00%         6.00%
                 Uniform declining period                    12 Years      12 Years      12 Years
</TABLE>

         For the plan as a whole, a one percentage point increase in the assumed
         health care cost trend rate would increase the APBO as of December 31,
         1997 by $0.4 million and have no impact on the NPPBC for the year ended
         December 31, 1997.

(10)     SHAREHOLDER'S EQUITY, REGULATORY RISK-BASED CAPITAL, RETAINED EARNINGS
         AND DIVIDEND RESTRICTIONS

         Ohio, NLIC's and NLAIC's state of domicile, imposes minimum risk-based
         capital requirements that were developed by the NAIC. The formulas for
         determining the amount of risk-based capital specify various weighting
         factors that are applied to financial balances or various levels of
         activity based on the perceived degree of risk. Regulatory compliance
         is determined by a ratio of the company's regulatory total adjusted
         capital, as defined by the NAIC, to its authorized control level
         risk-based capital, as defined by the NAIC. Companies below specific
         trigger points or ratios are classified within certain levels, each of
         which requires specified corrective action. NLIC and NLAIC each exceed
         the minimum risk-based capital requirements.


<PAGE>   21


               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         The statutory capital and surplus of NLIC as of December 31, 1997, 1996
         and 1995 was $1.13 billion, $1.00 billion and $1.36 billion,
         respectively. The statutory net income of NLIC for the years ended
         December 31, 1997, 1996 and 1995 was $111.7 million, $73.2 million and
         $86.5 million, respectively.

         As a result of the $850.0 million dividend paid on February 24, 1997,
         any dividend paid by NLIC during the twelve-month period immediately
         following the $850.0 million dividend would be an extraordinary
         dividend under Ohio insurance laws. Accordingly, no such dividend could
         be paid without prior regulatory approval. The Company has no reason to
         believe that any reasonably foreseeable dividend to be paid by NLIC
         would not receive the required approval.

         In addition, the payment of dividends by NLIC may also be subject to
         restrictions set forth in the insurance laws of New York that limit the
         amount of statutory profits on NLIC's participating policies (measured
         before dividends to policyholders) that can inure to the benefit of the
         Company and its shareholder.

         The Company currently does not expect such regulatory requirements to
         impair its ability to pay operating expenses and shareholder dividends
         in the future.

(11)     TRANSACTIONS WITH AFFILIATES

         As part of the restructuring described in note 1, NLIC paid a dividend
         valued at $485.7 million to Nationwide Corp. on January 1, 1997
         consisting of the outstanding shares of common stock of ELICW, National
         Casualty Company (NCC) and West Coast Life Insurance Company (WCLIC).
         Also, on February 24, 1997, NLIC paid a dividend to NFS, and NFS paid
         an equivalent dividend to Nationwide Corp., consisting of securities
         having an aggregate fair value of $850.0 million. The Company
         recognized a gain of $14.4 million on the transfer of securities.

         The Company leases office space from NMIC and certain of its
         subsidiaries. For the years ended December 31, 1997, 1996 and 1995, the
         Company made lease payments to NMIC and its subsidiaries of $8.4
         million, $9.1 million and $9.0 million, respectively.

         Pursuant to a cost sharing agreement among NMIC and certain of its
         direct and indirect subsidiaries, including the Company, NMIC provides
         certain operational and administrative services, such as sales support,
         advertising, personnel and general management services, to those
         subsidiaries. Expenses covered by this agreement are subject to
         allocation among NMIC, the Company and other affiliates. Amounts
         allocated to the Company were $85.8 million, $101.6 million and $107.1
         million in 1997, 1996 and 1995, respectively. The allocations are based
         on techniques and procedures in accordance with insurance regulatory
         guidelines. Measures used to allocate expenses among companies include
         individual employee estimates of time spent, special cost studies,
         salary expense, commissions expense and other methods agreed to by the
         participating companies that are within industry guidelines and
         practices. The Company believes these allocation methods are
         reasonable. In addition, the Company does not believe that expenses
         recognized under the inter-company agreements are materially different
         than expenses that would have been recognized had the Company operated
         on a stand alone basis. Amounts payable to NMIC from the Company under
         the cost sharing agreement were $20.5 million and $15.1 million as of
         December 31, 1997 and 1996, respectively.

         The Company also participates in intercompany repurchase agreements
         with affiliates whereby the seller will transfer securities to the
         buyer at a stated value. Upon demand or a stated period, the securities
         will be repurchased by the seller at the original sales price plus a
         price differential. Transactions under the agreements during 1997 and
         1996 were not material. The Company believes that the terms of the
         repurchase agreements are materially consistent with what the Company
         could have obtained with unaffiliated parties.


<PAGE>   22

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


         Intercompany reinsurance agreements exist between NLIC and,
         respectively, NMIC and ELICW whereby all of NLIC's accident and health
         and group life insurance business is ceded on a modified coinsurance
         basis. NLIC entered into the reinsurance agreements during 1996 because
         the accident and health and group life insurance business was unrelated
         to the Company's long-term savings and retirement products.
         Accordingly, the accident and health and group life insurance business
         has been accounted for as discontinued operations for all periods
         presented. Under modified coinsurance agreements, invested assets are
         retained by the ceding company and investment earnings are paid to the
         reinsurer. Under the terms of the Company's agreements, the investment
         risk associated with changes in interest rates is borne by ELICW or
         NMIC, as the case may be. Risk of asset default is retained by the
         Company, although a fee is paid by ELICW or NMIC, as the case may be,
         to the Company for the Company's retention of such risk. The agreements
         will remain in force until all policy obligations are settled. However,
         with respect to the agreement between NLIC and NMIC, either party may
         terminate the contract on January 1 of any year with prior notice. The
         ceding of risk does not discharge the original insurer from its primary
         obligation to the policyholder. The Company believes that the terms of
         the modified coinsurance agreements are consistent in all material
         respects with what the Company could have obtained with unaffiliated
         parties. Amounts ceded to NMIC and ELICW for the years ended December
         31, 1997 and 1996 were:

<TABLE>
<CAPTION>

                                                                   1997                          1996
                                                        ----------------------------  ----------------------------
             (in millions of dollars)                       NMIC          ELICW           NMIC          ELICW
                                                        -------------- -------------  ----------------------------
<S>                                                        <C>            <C>            <C>           <C>    
             Premiums                                       $ 91.4         $199.8         $ 97.3        $224.2
             Net investment income and other revenue        $ 10.7         $ 13.4         $ 10.9        $ 14.8
             Benefits, claims and other expenses            $100.7         $225.9         $100.5        $246.6

</TABLE>

         The Company and various affiliates entered into agreements with
         Nationwide Cash Management Company (NCMC), an affiliate, under which
         NCMC acts as a common agent in handling the purchase and sale of
         short-term securities for the respective accounts of the participants.
         Amounts on deposit with NCMC were $211.0 million and $4.8 million as of
         December 31, 1997 and 1996, respectively, and are included in
         short-term investments on the accompanying consolidated balance sheets.

         On March 1, 1995, Nationwide Corp. contributed all of the outstanding
         shares of common stock of Farmland Life Insurance Company (Farmland) to
         NLIC. Farmland merged into WCLIC effective June 30, 1995. The
         contribution resulted in a direct increase to consolidated
         shareholder's equity of $46.9 million. As discussed in note 15, WCLIC
         is accounted for as discontinued operations.

         Certain annuity products are sold through three affiliated companies,
         which are also subsidiaries of NFS. Total commissions and fees paid to
         these affiliates for the three years ended December 31, 1997 were $66.1
         million, $76.9 million and $57.3 million, respectively.

(12)     BANK LINES OF CREDIT

         In August 1996, NLIC, along with NMIC, entered into a $600.0 million
         revolving credit facility which provides for a $600.0 million loan over
         a five year term on a fully revolving basis with a group of national
         financial institutions. The credit facility provides for several and
         not joint liability with respect to any amount drawn by either NLIC or
         NMIC. NLIC and NMIC pay facility and usage fees to the financial
         institutions to maintain the revolving credit facility. All previously
         existing line of credit agreements were canceled. In September 1997,
         the credit agreement was amended to include NFS as a party to and
         borrower under the agreement.


<PAGE>   23

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


(13)     CONTINGENCIES

         The Company is a defendant in various lawsuits. In the opinion of
         management, the effects, if any, of such lawsuits are not expected to
         be material to the Company's financial position or results of
         operations.

(14)     SEGMENT INFORMATION

         The Company has three product segments: Variable Annuities, Fixed
         Annuities and Life Insurance. The Variable Annuities segment consists
         of annuity contracts that provide the customer with the opportunity to
         invest in mutual funds managed by the Company and independent
         investment managers, with the investment returns accumulating on a
         tax-deferred basis. The Fixed Annuities segment consists of annuity
         contracts that generate a return for the customer at a specified
         interest rate, fixed for a prescribed period, with returns accumulating
         on a tax-deferred basis. The Fixed Annuities segment also includes the
         fixed option under the Company's variable annuity contracts. The Life
         Insurance segment consists of insurance products that provide a death
         benefit and may also allow the customer to build cash value on a
         tax-deferred basis. In addition, the Company reports corporate expenses
         and investments, and the related investment income supporting capital
         not specifically allocated to its product segments in a Corporate and
         Other segment. In addition, all realized gains and losses and
         investment management fees and other revenue earned from mutual funds,
         other than the portion allocated to the variable annuities and life
         insurance segments, are reported in the Corporate and Other segment.

         The following table summarizes revenues and income from continuing
         operations before federal income tax expense for the years ended
         December 31, 1997, 1996 and 1995 and assets as of December 31, 1997,
         1996 and 1995, by segment.
<TABLE>
<CAPTION>

              (in millions of dollars)                                         1997               1996             1995
                                                                           -------------      ------------     ------------   
<S>                                                                         <C>               <C>              <C>  
              Revenues:
                  Variable Annuities                                         $    404.0        $    284.6       $    189.1
                  Fixed Annuities                                               1,141.4           1,092.6          1,052.0
                  Life Insurance                                                  473.1             435.6            409.1
                  Corporate and Other                                             198.9             180.1            148.5
                                                                            -----------        ----------       ----------
                                                                             $  2,217.4        $  1,992.9       $  1,798.7
                                                                            ===========        ==========       ==========

              Income from continuing operations before federal income tax
                expense:
                  Variable Annuities                                         $    150.9        $     90.3       $     50.8
                  Fixed Annuities                                                 169.5             135.4            137.0
                  Life Insurance                                                   70.9              67.2             67.6
                  Corporate and Other                                              38.6              22.6             32.2
                                                                            -----------        ----------       ----------
                                                                             $    429.9        $    315.5       $    287.6
                                                                            ===========        ==========       ==========

              Assets:
                  Variable Annuities                                         $ 35,278.7        $ 25,069.7       $ 17,333.0
                  Fixed Annuities                                              14,436.3          13,994.7         13,250.4
                  Life Insurance                                                3,901.4           3,353.3          3,027.4
                  Corporate and Other                                           6,174.3           5,348.6          4,896.8
                                                                            -----------        ----------       ----------
                                                                             $ 59,790.7        $ 47,766.3       $ 38,507.6
                                                                            ===========        ==========       ==========
</TABLE>


<PAGE>   24



               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES
       (a wholly owned subsidiary of Nationwide Financial Services, Inc.)

              Notes to Consolidated Financial Statements, Continued


(15)     DISCONTINUED OPERATIONS

         As discussed in note 1, NFS is a holding company for NLIC and certain
         other companies within the Nationwide Insurance Enterprise that offer
         or distribute long-term savings and retirement products. Prior to the
         contribution by Nationwide Corp. of the outstanding common stock of
         NLIC to NFS, NLIC effected certain transactions with respect to certain
         subsidiaries and lines of business that were unrelated to long-term
         savings and retirement products.

         On September 24, 1996, NLIC's Board of Directors declared a dividend
         payable to Nationwide Corp. on January 1, 1997 consisting of the
         outstanding shares of common stock of three subsidiaries: ELICW, NCC
         and WCLIC. ELICW writes group accident and health and group life
         insurance business and maintains it offices in Wausau, Wisconsin. NCC
         is a property and casualty company with offices in Scottsdale, Arizona
         that serves as a fronting company for a property and casualty
         subsidiary of NMIC. WCLIC writes high dollar term life insurance
         policies and is located in San Francisco, California. ELICW, NCC and
         WCLIC have been accounted for as discontinued operations in the
         accompanying consolidated financial statements through December 31,
         1996. The Company did not recognize any gain or loss on the disposal of
         these subsidiaries.

         Also, during 1996, NLIC entered into two reinsurance agreements whereby
         all of NLIC's accident and health and group life insurance business was
         ceded to ELICW and NMIC, effective January 1, 1996. See note 11 for a
         complete discussion of the reinsurance agreements. The Company has
         discontinued its accident and health and group life insurance business
         and in connection therewith has entered into reinsurance agreements to
         cede all existing and any future writings to other affiliated
         companies. NLIC's accident and health and group life insurance business
         is accounted for as discontinued operations for all periods presented.
         The Company did not recognize any gain or loss on the disposal of the
         accident and health and group life insurance business. The assets,
         liabilities, results of operations and activities of discontinued
         operations are distinguished physically, operationally and for
         financial reporting purposes from the remaining assets, liabilities,
         results of operations and activities of the Company.

         A summary of the results of operations of discontinued operations for
         the years ended December 31, 1997, 1996 and 1995 is as follows:

<TABLE>
<CAPTION>

             (in millions of dollars)                                               1997           1996          1995
                                                                                -------------- ------------- ------------

<S>                                                                               <C>            <C>           <C>
             Revenues                                                             $    -         $   668.9     $   776.9
             Net income                                                           $    -         $    11.3     $    24.7
</TABLE>

         A summary of the assets and liabilities of discontinued operations as 
         of December 31, 1997, 1996 and 1995 is as follows:
<TABLE>
<CAPTION>

             (in millions of dollars)                                               1997           1996          1995
                                                                                -------------- ------------- -------------

<S>                                                                                 <C>           <C>           <C> 
             Assets, consisting primarily of investments                            $247.3        $3,288.5      $3,206.7
             Liabilities, consisting primarily of policy benefits and claims        $247.3        $2,802.8      $2,700.0
</TABLE>




<PAGE>   65

     Part C. OTHER INFORMATION
Item 24.   FINANCIAL STATEMENTS AND EXHIBITS

<TABLE>
<CAPTION>
                                                                                     Page
<S>        <C>                                                                        <C>
           (a)     Financial Statements:

               (1) Financial statements included in Prospectus (Part A):

                   Condensed Financial Information                                     15

               (2) Financial statements included in Part B:

                   Those financial statements required by Item 23 to be included
                   in Part B have been incorporated therein by reference to the
                   Prospectus (Part A).

           NACo Variable Account:

                   Independent Auditors' Report.                                       43

                   Statement of Assets, Liabilities and Contract Owners' Equity
                   as of December 31, 1997.                                            44

                   Statement of Operations and Changes in Contract Owners'
                   Equity for the years ended December 31, 1997 and 1996.              46

                   Notes to Financial Statements.                                      54

Nationwide Life Insurance Company:

                   Independent Auditors' Report.                                       66

                   Consolidated Balance Sheets as of December 31, 1997 and 1996.       67

                   Consolidated Statements of Income for the years ended
                   December 31, 1997, 1996 and 1995.                                   68

                   Consolidated Statements of Shareholder's Equity for the years
                   ended December 31, 1997, 1996 and 1995.                             69

                   Consolidated Statements of Cash Flows for the years ended
                   December 31, 1997, 1996 and 1995.                                   70

                   Notes to Consolidated Financial Statements.                         71

                   Schedule I - Consolidated Summary of Investments Other Than
                   Investments in Related Parties.                                    109

                   Schedule III - Supplementary Insurance Information.                110

                   Schedule IV - Reinsurance.                                         111

                   Schedule V - Valuation and Qualifying Accounts.                    112
</TABLE>


<PAGE>   66


  Item 24.  (b) Exhibits

    (1)  Resolution of the Depositor's Board of Directors authorizing the
         establishment of the Registrant, adopted September 7, 1988-Filed
         previously with pre-effective Amendment No. 1 to the registration
         statement (File No. 33-33425), and hereby incorporated by reference.

    (2)  Not Applicable

    (3)  Underwriting or Distribution contract between the Registrant and
         Principal Underwriter- Filed previously with pre-effective Amendment
         No. 1 to the registration statement (File No. 33-33425), and hereby
         incorporated by reference.

    (4)  The form of the variable annuity contract- Filed previously with
         pre-effective Amendment No. 1 to the registration statement (file No.
         33-33425), and hereby incorporated by reference.

    (5)  Variable Annuity Application-Filed previously with pre-effective
         Amendment No. 1 to the registration statement (file No. 33-33425), and
         hereby incorporated by reference.

    (6)  Articles of Incorporation of Depositor. --Filed previously with
         pre-effective Amendment No. 1 to the registration statement (File No.
         33-33425), and hereby incorporated by reference.

    (7)  Not Applicable

    (8)  Not Applicable

    (9)  Opinion of Counsel-Filed previously with pre-effective Amendment No. 1
         to the registration statement (File No. 33-33425), and hereby
         incorporated by reference.

    (10) Not Applicable

    (11) Not Applicable

    (12) Not Applicable

    (13) Performance Advertising Calculation Schedule-Filed previously with
         pre-effective Amendment No. 1 to the registration statement (File No.
         33-33425), and hereby incorporated by reference.







<PAGE>   67


Item 25.      DIRECTORS AND OFFICERS OF THE DEPOSITOR

   
<TABLE>
<CAPTION>
    NAME AND PRINCIPAL                             POSITIONS AND OFFICES
     BUSINESS ADDRESS                                 WITH DEPOSITOR
<S>                                                         <C>
     Lewis J. Alphin                                        Director
     519 Bethel Church Road
     Mount Olive, NC  28365

     A. I. Bell                                             Director
     4121 North River Road West
     Zanesville, OH 43701

     Keith W. Eckel                                         Director
     1647 Falls Road
     Clarks Summit, PA 18411

     Willard J. Engel                                       Director
     300 East Marshall Street
     Marshall, MN 56258

     Fred C. Finney                                         Director
     1558 West Moreland Road
     Wooster, OH 44691

     Charles L. Fuellgraf, Jr.                              Director
     600 South Washington Street
     Butler, PA  16001

     Joseph J. Gasper                         President and Chief Operating Officer
     One Nationwide Plaza                                 and Director
     Columbus, OH  43215

     Dimon R. McFerson                        Chairman and Chief Executive Officer-
     One Nationwide Plaza                        Nationwide Insurance Enterprise
     Columbus, OH  43215                                  and Director

     David O. Miller                           Chairman of the Board and Director
     115 Sprague Drive
     Hebron, OH 43025

     Yvonne L. Montgomery                                   Director
     2859 Paces Ferry Road
     Atlanta, GA 30339

     James F. Patterson                                     Director
     8765 Mulberry Road
     Chesterland, OH  44026

</TABLE>
    



<PAGE>   68


<TABLE>
<CAPTION>
      NAME AND PRINCIPAL                             POSITIONS AND OFFICES
       BUSINESS ADDRESS                                 WITH DEPOSITOR
<S>                                                         <C>
     Arden L. Shisler                                       Director
     1356 North Wenger Road
     Dalton, OH  44618

     Robert L. Stewart                                      Director
     88740 Fairview Road
     Jewett, OH  43986

     Nancy C. Thomas                                        Director
     10835 Georgetown Street NE
     Louisville, OH  44641

     Harold W. Weihl                                        Director
     14282 King Road
     Bowling Green, OH  43402

     Dennis W. Click                              Vice President and Secretary
     One Nationwide Plaza
     Columbus, OH  43215

     Robert A. Oakley                               Executive Vice President-
     One Nationwide Plaza                            Chief Financial Officer
     Columbus, OH  43215

     Robert J. Woodward Jr.                         Executive Vice President
     One Nationwide Plaza                           Chief Investment Officer
     Columbus, OH 43215

     W. Sidney Druen                            Senior Vice President and General
     One Nationwide Plaza                        Counsel and Assistant Secretary
     Columbus, OH  43215

     Harvey S. Galloway, Jr.                  Senior Vice President-Chief Actuary-
     One Nationwide Plaza                          Life, Health and Annuities
     Columbus, OH  43215

     Richard A. Karas                            Senior Vice President - Sales -
     One Nationwide Plaza                              Financial Services
     Columbus, OH  43215

     Susan A. Wolken                              Senior Vice President - Life
     One Nationwide Plaza                              Company Operations
     Columbus, OH 43215

     Michael D. Bleiweiss                                Vice President-
     One Nationwide Plaza                         Individual Annuity Operations
     Columbus, OH  43215

</TABLE>



<PAGE>   69



<TABLE>
<CAPTION>
      NAME AND PRINCIPAL                             POSITIONS AND OFFICES
       BUSINESS ADDRESS                                 WITH DEPOSITOR

<S>                                                         <C>
     Matthew S. Easley                                  Vice President -
     One Nationwide Plaza                  Life Marketing and Administrative Services
     Columbus, OH  43215

     Timothy E. Murphy                                   Vice President-
     One Nationwide Plaza                              Strategic Marketing
     Columbus, Ohio  43215

     R. Dennis Noice                                     Vice President-
     One Nationwide Plaza                               Retail Operations
     Columbus, OH  43215

     Joseph P. Rath
     One Nationwide Plaza                                Vice President
     Columbus, OH  43215
</TABLE>


Item 26.      PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH THE DEPOSITOR
              OR REGISTRANT.
                *     Subsidiaries for which separate financial statements are
                      filed
                **    Subsidiaries included in the respective consolidated
                      financial statements
                ***   Subsidiaries included in the respective group financial
                      statements filed for unconsolidated subsidiaries
                ****  other subsidiaries







<PAGE>   70


<TABLE>
<CAPTION>
                                                                        NO. VOTING
                                                                        SECURITIES
                                                       STATE           (SEE ATTACHED
                                                  OF ORGANIZATION      CHART) UNLESS
                        COMPANY                                          OTHERWISE              PRINCIPAL BUSINESS
                                                                         INDICATED
<S>                                                   <C>                <C>           <C>
         Affiliate Agency, Inc.                       Delaware                         Life Insurance Agency
         Affiliate Agency of Ohio, Inc.                 Ohio                           Life Insurance Agency
         Allnations, Inc.                               Ohio                           Promotes cooperative insurance
                                                                                       corporations worldwide
         American Marine Underwriters, Inc.           Florida                          Underwriting Manager
         Auto Direkt Insurance Company                Germany                          Insurance Company
         The Beak and Wire Corporation                  Ohio                           Radio Tower Joint Venture
         California Cash Management Company          California                        Inactive
         Colonial County Mutual Insurance              Texas                           Insurance Company
         Company
         Colonial Insurance Company of               Wisconsin                         Insurance Company
         Wisconsin
         Columbus Insurance Brokerage and             Germany                          Insurance Broker
         Service GMBH
         Companies Agency, Inc.                      Wisconsin                         Insurance Broker
         Companies Agency Insurance Services         California                        Insurance  Broker
         of California
         Companies Agency of Alabama, Inc.            Alabama                          Insurance Broker
         Companies Agency of Georgia, Inc.            Georgia                          Insurance Broker
         Companies Agency of Idaho, Inc.               Idaho                           Insurance Broker
         Companies Agency of Kentucky, Inc.           Kentucky                         Insurance Broker
         Companies Agency of Massachusetts, Inc.   Massachusetts                       Insurance Broker
         Companies Agency of New York, Inc.           New York                         Insurance Broker
         Companies Agency of Pennsylvania, Inc.     Pennsylvania                       Insurance Broker
         Companies Agency of Phoenix, Inc.            Arizona                          Insurance Broker
         Companies Agency of Texas, Inc.               Texas                           Local Recording Agent (P&C)
         Companies Annuity Agency of Texas, Inc.       Texas                           Group and Variable Contract Agent
         Cooperative Service Company                  Nebraska                         Insurance Agency
         Countrywide Services Corporation             Delaware                         Products Liability, Investigative and Claims
                                                                                       Management Services
         EMPLOYERS INSURANCE OF WAUSAU A             Wisconsin                         Mutual Insurance Company
         Mutual Company
</TABLE>





<PAGE>   71



<TABLE>
<CAPTION>
                                                                        NO. VOTING
                                                                        SECURITIES
                                                       STATE           (SEE ATTACHED
                                                  OF ORGANIZATION      CHART) UNLESS
                        COMPANY                                          OTHERWISE                   PRINCIPAL BUSINESS
                                                                         INDICATED
<S>                                                   <C>                <C>           <C>
     **  Employers Life Insurance Company of         Wisconsin                         Life Insurance Company
         Wausau
         F & B, Inc.                                    Iowa                           Insurance Agency
         Farmland Mutual Insurance Company              Iowa                           Mutual Insurance Company
         Financial Horizons Distributors              Alabama                          Life Insurance Agency
         Agency of Alabama, Inc.
         Financial Horizons Distributors                Ohio                           Life Insurance Agency
         Agency of Ohio, Inc.
         Financial Horizons Distributors              Oklahoma                         Life Insurance Agency
         Agency of Oklahoma, Inc.
         Financial Horizons Distributors               Texas                           Life Insurance Agency
         Agency of Texas, Inc.
      *  Financial Horizons Investment Trust       Massachusetts                       Investment Company
         Financial Horizons Securities                Oklahoma                         Broker Dealer
         Corporation
         Gates, McDonald & Company                      Ohio                           Cost Control Business
         Gates, McDonald & Company of Nevada           Nevada                          Self-Insurance Administration Claims
                                                                                       Examinations and Data Processing Services
         Gates, McDonald & Company of New             New York                         Workers Compensation Claims Administration
         York, Inc.
         Gates McDonald Health Plus, Inc.               Ohio                           Managed Care Organization
         Greater La Crosse Health Plans, Inc.        Wisconsin                         Commercial Health and Medicare
                                                                                       Supplement Insurance
         Insurance Intermediaries, Inc.                 Ohio                           Insurance Broker and Insurance Agency
         Irvin L. Schwartz and Associates, Inc.         Ohio                           Insurance Agency
         Key Health Plan, Inc.                       California                        Pre-paid Health Plans
         Landmark Financial Services of New           New York                         Life Insurance Agency
         York, Inc.
         Leben Direkt Insurance Company               Germany                          Life Insurance Company
         Lone Star General Agency, Inc.                Texas                           Insurance Agency
     **  MRM Investments, Inc.                          Ohio                           Owns and Operates a Recreational Ski Facility
     **  National Casualty Company                   Wisconsin                         Insurance Company
         National Casualty Company of America,     Great Britain                       Insurance Company
         Ltd.
     **  National Premium and Benefit                 Delaware                         Insurance Administrative Services
         Administration Company
     **  Nationwide Advisory Services, Inc.             Ohio                           Registered Broker-Dealer, Investment Manager
                                                                                       and Administrator
</TABLE>





<PAGE>   72


<TABLE>
<CAPTION>
                                                                        NO. VOTING
                                                                        SECURITIES
                                                       STATE           (SEE ATTACHED
                                                  OF ORGANIZATION      CHART) UNLESS
                        COMPANY                                          OTHERWISE                   PRINCIPAL BUSINESS
                                                                         INDICATED
<S>                                                   <C>                <C>           <C>

         Nationwide Agency, Inc.                        Ohio                           Insurance Agency
         Nationwide Agribusiness Insurance              Iowa                           Insurance Company
         Company
         Nationwide Asset Allocation Trust         Massachusetts                       Investment Company
         Nationwide Cash Management Company             Ohio                           Investment Securities Agent
         Nationwide Community Urban                     Ohio                           Redevelopment of blighted areas within the
         Redevelopment Corporation                                                     City of Columbus, Ohio
         Nationwide Corporation                         Ohio                           Organized for the purpose of acquiring,
                                                                                       holding, encumbering, transferring,
                                                                                       or otherwise disposing of
                                                                                       shares, bonds, and other
                                                                                       evidences of indebtedness,
                                                                                       securities, and contracts of
                                                                                       other persons, associations,
                                                                                       corporations, domestic or
                                                                                       foreign and to form
                                                                                       or acquire the control of
                                                                                       other corporations 
         Nationwide/Dispatch LLC                        Ohio                           Engaged in related Arena development Activity
         Nationwide Financial Institution             Delaware                         Insurance Agency
         Distributors Agency, Inc.
         Nationwide Financial Services Capital        Delaware                         Statutory Business Trust
         Trust
         Nationwide Financial Services, Inc.          Delaware                         Organized for the purpose of acquiring,
                                                                                       holding, encumbering, transferring,
                                                                                       or otherwise disposing of
                                                                                       shares, bonds, and other
                                                                                       evidences of indebtedness,
                                                                                       securities, and contracts
                                                                                       of other persons, associations,
                                                                                       corporations, domestic or
                                                                                       foreign and to form or acquire
                                                                                       the control of other corporations
         Nationwide General Insurance Company           Ohio                           Insurance Company
         Nationwide Global Holdings, Inc.               Ohio                           Holding Company for Enterprise International
                                                                                       Operations
         Nationwide Health Plans, Inc.                  Ohio                           Health Maintenance Organization
      *  Nationwide Indemnity Company                   Ohio                           Reinsurance Company
         Nationwide Insurance Enterprise                Ohio                           Membership Non-Profit Corporation
         Foundation
         Nationwide Insurance Enterprise                Ohio                           Performs shares services functions for the
         Services, Ltd.                                                                Enterprise
         Nationwide Insurance Golf Charities, Inc.      Ohio                           Membership Non-Profit Corporation
         Nationwide Investing Foundation              Michigan                         Investment Company
      *  Nationwide Investing                      Massachusetts                       Investment Company
         Foundation II
         Nationwide Investing Foundation III            Ohio                           Investment Company
</TABLE>






<PAGE>   73

<TABLE>
<CAPTION>
                                                                        NO. VOTING
                                                                        SECURITIES
                                                       STATE           (SEE ATTACHED
                                                  OF ORGANIZATION      CHART) UNLESS
                        COMPANY                                          OTHERWISE                   PRINCIPAL BUSINESS
                                                                         INDICATED
<S>                                                   <C>                <C>           <C>

         Nationwide Investment Services               Oklahoma                         Registered Broker-Dealer in Deferred
         Corporation                                                                   Compensation Market
         Nationwide Investors Services, Inc.            Ohio                           Stock Transfer Agent
     **  Nationwide Life and Annuity Insurance          Ohio                           Life Insurance Company
         Company
     **  Nationwide Life Insurance Company              Ohio                           Life Insurance Company
         Nationwide Lloyds                             Texas                           Texas Lloyds Company
         Nationwide  Management Systems, Inc.           Ohio                           Offers Preferred Provider Organization and
                                                                                       Other Related Products and Services
         Nationwide Mutual Fire Insurance               Ohio                           Mutual Insurance Company
         Company
         Nationwide Mutual Insurance Company            Ohio                           Mutual Insurance Company
         Nationwide Properties, Ltd.                    Ohio                           Develops, owns and operates real estate and
                                                                                       real estate investments
         Nationwide Property and Casualty               Ohio                           Insurance Company
         Insurance Company
         Nationwide Realty Investors, Ltd.              Ohio                           Develops, owns and operates real estate and
                                                                                       real estate investments
      *  Nationwide Separate Account Trust         Massachusetts                       Investment Company
         NEA Valuebuilder Investor Services,          Delaware                         Life Insurance Agency
         Inc.
         NEA Valuebuilder Investor Services of        Alabama                          Life Insurance Agency
         Alabama, Inc.
         NEA Valuebuilder Investor Services of        Arizona                          Life Insurance Agency
         Arizona, Inc.
         NEA Valuebuilder Investor Services of        Montana                          Life Insurance Agency
         Montana, Inc.
         NEA Valuebuilder Investor Services of         Nevada                          Life Insurance Agency
         Nevada, Inc.
         NEA Valuebuilder Investor Services of          Ohio                           Life Insurance Agency
         Ohio, Inc.
         NEA Valuebuilder Investor Services of        Oklahoma                         Life Insurance Agency
         Oklahoma, Inc.
         NEA Valuebuilder Investor Services of         Texas                           Life Insurance Agency
         Texas, Inc.
         NEA Valuebuilder Investor Services of        Wyoming                          Life Insurance Agency
         Wyoming, Inc.
         NEA Valuebuilder Services Insurance       Massachusetts                       Life Insurance Agency
         Agency, Inc.
         Neckura General Insurance Company            Germany                          Insurance Company
         Neckura Holding Company                      Germany                          Administrative Service for Neckura Insurance
                                                                                       Group
         Neckura Insurance Company                    Germany                          Insurance Company
         Neckura Life Insurance Company               Germany                          Life Insurance Company
</TABLE>






<PAGE>   74

<TABLE>
<CAPTION>
                                                                        NO. VOTING
                                                                        SECURITIES
                                                       STATE           (SEE ATTACHED
                                                  OF ORGANIZATION      CHART) UNLESS
                        COMPANY                                          OTHERWISE                   PRINCIPAL BUSINESS
                                                                         INDICATED
<S>                                                   <C>                <C>           <C>
         NWE, Inc.                                      Ohio                           Special Investments
         PEBSCO of Massachusetts Insurance         Massachusetts                       Markets and Administers Deferred Compensation
         Agency, Inc.                                                                  Plans for Public Employees
         PEBSCO of Texas, Inc.                         Texas                           Markets and Administers Deferred Compensation
                                                                                       Plans for Public Employees
         Pension Associates of Wausau, Inc.          Wisconsin                         Pension plan administration, record keeping
                                                                                       and consulting and compensation consulting
         Physicians Plus Insurance Corporation       Wisconsin                         Health Maintenance Organization
         Prevea Health Insurance Plan, Inc.          Wisconsin                         Health Maintenance Organization
         Public Employees Benefit Services            Delaware                         Markets and Administers Deferred Compensation
         Corporation                                                                   Plans for Public Employees
         Public Employees Benefit Services            Alabama                          Markets and Administers Deferred Compensation
         Corporation of Alabama                                                        Plans for Public Employees
         Public Employees Benefit Services            Arkansas                         Markets and Administers Deferred Compensation
         Corporation of Arkansas                                                       Plans for Public Employees
         Public Employees Benefit Services            Montana                          Markets and Administers Deferred Compensation
         Corporation of Montana                                                        Plans for Public Employees
         Public Employees Benefit Services           New Mexico                        Markets and Administers Deferred Compensation
         Corporation of New Mexico                                                     Plans for Public Employees
         Scottsdale Indemnity Company                   Ohio                           Insurance Company
         Scottsdale Insurance Company                   Ohio                           Insurance Company
         Scottsdale Surplus Lines Insurance           Arizona                          Excess and Surplus Lines Insurance Company
         Company
         SVM Sales GmbH, Neckura Insurance            Germany                          Sales support for Neckura Insurance Group
         Group
         TIG Countrywide Insurance Group             California                        Independent Agency Personal Lines Underwriter
         Wausau (Bermuda) Ltd.                        Bermuda                          Rent-a-captive Reinsurer
         Wausau Business Insurance Company           Wisconsin                         Insurance Company
         Wausau General Insurance Company             Illinois                         Insurance Company
         Wausau Insurance Company (U.K.)           United Kingdom                      Insurance and Reinsurance Company
         Limited
         Wausau International Underwriters           California                        Special Risks, Excess and Surplus Lines
                                                                                       Insurance Underwriting Manager
     **  Wausau Preferred Health Insurance           Wisconsin                         Insurance and Reinsurance Company
         Company
         Wausau Service Corporation                  Wisconsin                         Holding Company
         Wausau Underwriters Insurance Company       Wisconsin                         Insurance Company
</TABLE>





<PAGE>   75




<TABLE>
<CAPTION>

                                                                          NO. VOTING SECURITIES
                                                       STATE           (SEE ATTACHED CHART) UNLESS
                                                  OF ORGANIZATION          OTHERWISE INDICATED
                        COMPANY                                                                             PRINCIPAL BUSINESS
<S>                                                   <C>            <C>                             <C>
      *  MFS Variable Account                           Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  NACo Variable Account                          Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide DC Variable Account                 Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
         Nationwide DCVA-II                             Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Separate Account No. 1                         Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide Multi-Flex Variable Account         Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide VA Separate Account-A               Ohio         Nationwide Life and Annuity     Issuer of Annuity Contracts
                                                                     Separate Account
      *  Nationwide VA Separate Account-B               Ohio         Nationwide Life and Annuity     Issuer of Annuity Contracts
                                                                     Separate Account
      *  Nationwide VA Separate Account-C               Ohio         Nationwide Life and Annuity     Issuer of Annuity Contracts
                                                                     Separate Account
         Nationwide VA Separate Account-Q               Ohio         Nationwide Life and Annuity     Issuer of Annuity Contracts
                                                                     Separate Account
      *  Nationwide Variable Account                    Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide Variable Account-II                 Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide Variable Account-3                  Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide Variable Account-4                  Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide Variable Account-5                  Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide Fidelity Advisor Variable           Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
         Account                                                     Account
      *  Nationwide Variable Account-6                  Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
         Nationwide Variable Account-8                  Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide Variable Account-9                  Ohio         Nationwide Life Separate        Issuer of Annuity Contracts
                                                                     Account
      *  Nationwide VL Separate                         Ohio         Nationwide Life and Annuity     Issuer of Life Insurance 
         Account-A                                                   Separate Account                Policies
         Nationwide VL Separate                         Ohio         Nationwide Life and Annuity     Issuer of Life Insurance
         Account-B                                                   Separate Account                Policies
         Nationwide VL Separate                         Ohio         Nationwide Life and Annuity     Issuer of Life Insurance
         Account-C                                                   Separate Account                Policies
      *  Nationwide VLI Separate Account                Ohio         Nationwide Life Separate        Issuer of Life Insurance
                                                                     Account                         Policies
      *  Nationwide VLI Separate Account-2              Ohio         Nationwide Life Separate        Issuer of Life Insurance
                                                                     Account                         Policies
</TABLE>




<PAGE>   76


<TABLE>
<CAPTION>
<S>                                                   <C>            <C>                             <C>
      *  Nationwide VLI Separate Account-3              Ohio         Nationwide Life Separate        Issuer of Life Insurance
                                                                     Account                         Policies
         Nationwide VLI Separate Account-4              Ohio         Nationwide Life Separate        Issuer of Life Insurance
                                                                     Account                         Policies
</TABLE>







<PAGE>   77
<TABLE>
<CAPTION>
                                                                                                                         (left side)
<S>                               <C>                               <C>                                  <C>
- ------------------------
| NATIONWIDE INSURANCE |
| GOLF CHARITIES, INC. |
|                      |
|      MEMBERSHIP      |
|      NONPROFIT       |
|     CORPORATION      |
- ------------------------
                                                  ------------------------------------------
                                                  |      EMPLOYERS INSURANCE OF WAUSAU     |
                                                  |           A MUTUAL COMPANY             |
                                                  |             (EMPLOYERS)                |
                                                  |                                        |========================================
                                                  | Contribution Note         Cost         |
                                                  | -----------------         ----         |
                                                  | Casualty                  $400,000,000 |
                                                  ------------------------------------------
                                                                |
           -----------------------------------------------------------------------
           |                                  |                                  |
- ---------------------------       ---------------------------       ----------------------------         ---------------------------
|  KEY HEALTH PLAN, INC.  |       |   WAUSAU INSURANCE CO.  |       |      WAUSAU SERVICE      |         |                         |
|                         |       |      (U.K.) LIMITED     |       |     CORPORATION (WSC)    |         |    NATIONWIDE LLOYDS    |
|Common Stock: 1,000      |       |Common Stock: 8,506,800  |       |Common Stock: 1,000 Shares|         |                         |
|------------  Shares     |       |------------  Shares     |       |------------              |         |                         |
|                         |       |                         |       |                          |=========|                         |
|              Cost       |       |              Cost       |       |              Cost        |     ||  |      A TEXAS LLOYDS     |
|              ----       |       |              ----       |       |              ----        |     ||  |                         |
|Employers-               |       |Employers-               |       |Employers-                |     ||  |                         |
| 80%          $1,828,478 |       |100%          $18,683,300|       |100%          $176,763,000|     ||  |                         |
- ---------------------------       ---------------------------       ----------------------------     ||  ---------------------------
                                                                                 |                   ||
                              ---------------------------------------------------------------------  ||
                              |                                 |                                 |  ||
- ---------------------------   |   ---------------------------   |   ----------------------------  |  ||  ---------------------------
|     WAUSAU BUSINESS     |   |   |    COMPANIES AGENCY     |   |   |   COUNTRYWIDE SERVICES   |  |  ||  |                         |
|    INSURANCE COMPANY    |   |   |    OF KENTUCKY, INC.    |   |   |        CORPORATION       |  |  ||  |                         |
|Common Stock: 10,900,000 |   |   |Common Stock: 1,000      |   |   |Common Stock: 100 Shares  |  |  ||  |        COMPANIES        |
|------------  Shares     |   |   |------------  Shares     |   |   |------------              |  |  ||  |        AGENCY OF        |
|                         |---|---|                         |   |---|                          |  |  ||==|        TEXAS, INC.      |
|              Cost       |   |   |              Cost       |   |   |              Cost        |  |  ||  |                         |
|              ----       |   |   |              ----       |   |   |              ----        |  |  ||  |                         |
|WSC-100%      $33,800,000|   |   |WSC-100%      $1,000     |   |   |WSC-100%      $145,852    |  |  ||  |                         |
- ---------------------------   |   ---------------------------   |   ----------------------------  |  ||  ---------------------------
                              |                                 |                                 |  ||
- ---------------------------   |   ---------------------------   |   ----------------------------  |  ||  ---------------------------
|   WAUSAU UNDERWRITERS   |   |   |    COMPANIES AGENCY     |   |   |      WAUSAU GENERAL      |  |  ||  |                         |
|    INSURANCE COMPANY    |   |   | OF MASSACHUSETTS, INC.  |   |   |     INSURANCE COMPANY    |  |  ||  |                         |
|Common Stock: 8,750      |   |   |Common Stock: 1,000      |   |   |Common Stock: 200,000     |  |  ||  |     COMPANIES ANNUITY   |
|------------  Shares     |   |   |------------  Shares     |   |   |------------  Shares      |  |  ||  |         AGENCY OF       |
|                         |---|---|                         |   |---|                          |  |  ====|         TEXAS, INC.     |
|              Cost       |   |   |              Cost       |   |   |              Cost        |  |      |                         |
|              ----       |   |   |              ----       |   |   |              ----        |  |      |                         |
|WSC-100%      $69,560,006|   |   |WSC-100%      $1,000     |   |   |WSC-100%      $39,000,000 |  |      |                         |
- ---------------------------   |   ---------------------------   |   ----------------------------  |      ---------------------------
                              |                                 |                                 |      
- ---------------------------   |   ---------------------------   |   ----------------------------  |      ---------------------------
|   GREATER LA CROSSE     |   |   |    COMPANIES AGENCY     |   |   |   WAUSAU INTERNATIONAL   |  |      |     AMERICAN MARINE     |
|   HEALTH PLANS, INC.    |   |   |    OF NEW YORK, INC.    |   |   |       UNDERWRITERS       |  |      |    UNDERWRITERS, INC.   |
|Common Stock: 3,000      |   |   |Common Stock: 1,000      |   |   |Common Stock: 1,000       |  |      |Common Stock: 20         |
|------------  Shares     |   |   |------------  Shares     |   |   |------------  Shares      |  |      |------------  Shares     |
|                         |---|---|                         |   |---|                          |  |------|                         |
|              Cost       |   |   |              Cost       |   |   |              Cost        |  |      |              Cost       |
|              ----       |   |   |              ----       |   |   |              ----        |  |      |              ----       |
|WSC-33.3%     $1,461,761 |   |   |WSC-100%      $1,000     |   |   |WSC-100%      $10,000     |  |      |WSC-100%      $248,222   |
- ---------------------------   |   ---------------------------   |   ----------------------------  |      ---------------------------
                              |                                 |                                 |      
- ---------------------------   |   ---------------------------   |   ----------------------------  |      ---------------------------
|    COMPANIES AGENCY     |   |   |    COMPANIES AGENCY     |   |   |     COMPANIES AGENCY     |  |      |         COMPANIES       |
|    OF ALABAMA, INC.     |   |   |  OF PENNSYLVANIA, INC.  |   |   |    INSURANCE SERVICES    |  |      |        AGENCY, INC.     |
|                         |   |   |                         |   |   |       OF CALIFORNIA      |  |      |                         |
|Common Stock: 1,000      |   |   |Common Stock: 1,000      |   |   |Common Stock: 1,000       |  |      |Common Stock: 100        |
|------------  Shares     |   |   |------------  Shares     |   |---|------------  Shares      |  |------|------------  Shares     |
|                         |---|---|                         |   |   |                          |         |                         |
|              Cost       |   |   |              Cost       |   |   |              Cost        |         |              Cost       |
|              ----       |   |   |              ----       |   |   |              ----        |         |              ----       |
|WSC-100%      $100       |   |   |WSC-100%      $100       |   |   |WSC-100%      $1,000      |         |WSC-100%      $10,000    |
- ---------------------------   |   ---------------------------   |   ----------------------------         ---------------------------
                              |                                 |                                                     |
- ---------------------------   |   ---------------------------   |   ----------------------------         ---------------------------
|    COMPANIES AGENCY     |   |   |   COMPANIES AGENCY      |   |   |      PHYSICIANS PLUS     |         |    PENSION ASSOCIATES   |
|     OF IDAHO, INC.      |   |   |     OF PHOENIX, INC.    |   |   |         INSURANCE        |         |      OF WAUSAU, INC.    |
|                         |   |   |                         |   |   |        CORPORATION       |         |Common Stock: 1,000      |
|Common Stock: 1,000      |   |   |Common Stock: 1,000      |   |   |Common Stock:    7,150    |         |------------  Shares     |
|------------  Shares     |   |   |------------  Shares     |   |   |------------     Shares   |         |                         |
|                         |-------|                         |   |---|Preferred Stock: 11,540   |         |                         |
|                         |   |   |                         |   |   |---------------  Shares   |         |Companies        Cost    |
|                         |   |   |                         |   |   |                          |         |Agency, Inc.     ----    |
|              Cost       |   |   |              Cost       |   |   |                Cost      |         |(Wisconsin)-100% $10,000 |
|              ----       |   |   |              ----       |   |   |                ----      |         |                         |
|WSC-100%      $1,000     |   |   |WSC-100%      $1,000     |   |   |WSC-33-1/3%     $6,215,459|         |                         |
- ---------------------------   |   ---------------------------   |   ----------------------------         ---------------------------
                              |                                 |                                        
                              |   ---------------------------   |   ----------------------------                                    
                              |   |         WAUSAU          |   |   |      PREVEA HEALTH       |                                    
                              |   |     (BERMUDA) LTD.      |   |   |  INSURANCE PLAN, INC.    |                                    
                              |   | Common Stock:  120,000  |   |   |Common Stock: 3,000 Shares|                                    
                              |   | -------------  Shares   |   |   |------------              |                                    
                              ----|                         |   ----|                          |                                    
                                  |                         |       |                          |                                    
                                  |                Cost     |       |              Cost        |                                    
                                  |                ----     |       |              ----        |                                    
                                  | WSC-100%      $5,000,000|       |WSC-33-1/3%   $500,000    |                                    
                                  ---------------------------       ----------------------------                                    
</TABLE>

<PAGE>   78
<TABLE>
<CAPTION>
                                        NATIONWIDE INSURANCE ENTERPRISE(R)                                                  (middle)
<S>                                               <C>                                               <C>         
       -----------------------------------------------------------------------------
       |                                                                           |
       |                                                                           |
       |                           NATIONWIDE MUTUAL                               |
=======|                           INSURANCE COMPANY                               |================================================
       |                              (CASUALTY)                                   |
       |                                                                           |
       |                                                                           |
       -----------------------------------------------------------------------------
              |                        ||                              |
              |                        ||                              -------------------------------------------------------------
              |                        ||    ---------------------------------------------------------------------------------------
              |                        ||    |                                                                      |
- --------------------------------       ||    |    --------------------------------                  --------------------------------
|      ALLNATIONS, INC.        |       ||    |    |      NATIONWIDE GENERAL      |                  |        NECKURA HOLDING       |
|Common Stock:   10,330 Shares |       ||    |    |      INSURANCE COMPANY       |                  |       COMPANY (NECKURA)      |
|------------                  |       ||    |    |                              |                  |                              |
|                 Cost         |       ||    |    |Common Stock:    20,000       |                  |Common Stock:    10,000       |
|                 ----         |       ||    |    |------------     Shares       |                  |------------     Shares       |
|Casualty-18.6%   $88,320      |       ||    |    |                 Cost         |                  |                 Cost         |
|Fire-18.6%       $88,463      |       ||    |    |                 ----         |                  |                 ----         |
|Preferred Stock: 1,466 Shares |       ||    |----|Casualty-100%    $5,944,422   |         ---------|Casualty-100%    $87,943,140  |
|---------------               |       ||    |    |                              |         |        |                              |
|                 Cost         |       ||    |    |                              |         |        |                              |
|                 ----         |       ||    |    |                              |         |        |                              |
|Casualty-6.8%    $100,000     |       ||    |    |                              |         |        |                              |
|Fire-6.8%        $100,000     |       ||    |    |                              |         |        |                              |
- --------------------------------       ||    |    --------------------------------         |        --------------------------------
                                       ||    |                                             |    
- --------------------------------       ||    |    --------------------------------         |        --------------------------------
|       FARMLAND MUTUAL        |       ||    |    |      NATIONWIDE PROPERTY     |         |        |           NECKURA            |
|      INSURANCE COMPANY       |       ||    |    |         AND CASUALTY         |         |        |       INSURANCE COMPANY      |
|Guaranty Fund                 |       ||    |    |       INSURANCE COMPANY      |         |        |                              |
|------------                  |=========    |----|Common Stock:    60,000       |         |--------|Common Stock:    6,000        |
|Certificate                   |--------     |    |------------     Shares       |         |        |------------     Shares       |
|-----------      Cost         |       |     |    |                 Cost         |         |        |                 Cost         |
|                 ----         |       |     |    |                 ----         |         |        |Neckura-         ----         |
|Casualty         $500,000     |       |     |    |Casualty-100%    $6,000,000   |         |        |100%             DM 6,000,000 |
- --------------------------------       |     |    --------------------------------         |        --------------------------------
              |                        |     |                                             |    
- --------------------------------       |     |    --------------------------------         |        --------------------------------
|        F & B, INC.           |       |     |    |      COLONIAL INSURANCE      |         |        |         NECKURA LIFE         |
|                              |       |     |    |     COMPANY OF WINCONSIN     |         |        |       INSURANCE COMPANY      |
|Common Stock:    1 Share      |       |     |    |          (COLONIAL)          |         |        |                              |
|------------                  | ------|     |----|Common Stock:    1,750        |         |--------|Common Stock:   4,000         |
|                 Cost         |       |     |    |------------     Shares       |         |        |------------    Shares        |
|                 ----         |       |     |    |                 Cost         |         |        |                Cost          |
|Farmland                      |       |     |    |                 ----         |         |        |                ----          |
|Mutual-100%      $10          |       |     |    |Casualty-100%    $41,750,000  |         |        |Neckura-100%    DM 15,825,681 |
- --------------------------------       |     |    --------------------------------         |        --------------------------------
                                       |     |                                             |        
- --------------------------------       |     |    --------------------------------         |        --------------------------------
|    COOPERATIVE SERVICE       |       |     |    |         SCOTTSDALE           |         |        |        NECKURA GENERAL       |
|          COMPANY             |       |     |    |      INSURANCE COMPANY       |         |        |       INSURANCE COMPANY      |
|Common Stock:    600 Shares   |       |     |    |            (SIC)             |         |        |                              |
|------------                  |       |     |    |Common Stock:    30,136       |         |        |Common Stock:    1,500        |
|                 Cost         |--------     |----|------------     Shares       | ----    |--------|------------     Shares       |
|                 ----         |             |    |                 Cost         |    |    |        |                 Cost         |
|Farmland         $3,506,173   |             |    |                 ----         |    |    |        |                 ----         |
|Mutual-100%                   |             |    |Casualty-100%    $150,000,000 |    |    |        |Neckura-100%     DM 1,656,925 |
|                              |             |    |                              |    |    |        |                              |
|                              |             |    |                              |    |    |        |                              |
- --------------------------------             |    --------------------------------    |    |        --------------------------------
                                             |                                        |    |        
- --------------------------------             |    --------------------------------    |    |        --------------------------------
| NATIONWIDE AGRIBUSINESS      |             |    |          SCOTTSDALE          |    |    |        |       COLUMBUS INSURANCE     |
|    INSURANCE COMPANY         |             |    |        SURPLUS LINES         |    |    |        |      BROKERAGE AND SERVICE   |
|Common Stock:    1,000,000    |             |    |       INSURANCE COMPANY      |    |    |        |              GmbH            |
|------------     Shares       |------------ |    | Common Stock:    100,000     |    |    |        |Common Stock:    1 Share      |
|                              |             |    | ------------     Shares      | ---|    |--------|------------                  |
|                    Cost      |             |    |                              |    |    |        |                 Cost         |
|Casualty-99.9%      ----      |             |    |                   Cost       |    |    |        |                 ----         |
|Other Capital:   $26,714,335  |             |    |                   ----       |    |    |        |Neckura-100%     DM 51,639    |
|-------------                 |             |    | SIC-100%          $6,000,000 |    |    |        |                              |
|Casualty-Ptd.    $   713,576  |             |    |                              |    |    |        |                              |
- --------------------------------             |    --------------------------------    |    |        --------------------------------
                                             |                                        |    |        
- --------------------------------             |    --------------------------------    |    |        --------------------------------
|    NATIONAL CASUALTY         |             |    |      NATIONAL PREMIUM &      |    |    |        |          LEBEN DIREKT        |
|          COMPANY             |             |    |    BENEFIT ADMINISTRATION    |    |    |        |        INSURANCE COMPANY     |
|           (NC)               |             |    |           COMPANY            |    |    |        |                              |
|Common Stock:    100 Shares   |             |    |Common Stock:    10,000       |    |    |        |Common Stock:    4,000 Shares |
|------------                  |-------------     |------------     Shares       |-----    ---------|------------                  |
|                 Cost         |                  |                 Cost         |         |        |                 Cost         |
|                 ----         |                  |                 ----         |         |        |                 ----         |
|Casualty-100%    $67,442,439  |                  |Scottsdale-100%  $10,000      |         |        |Neckura-100%     DM 4,000,000 |
|                              |                  |                              |         |        |                              |
|                              |                  |                              |         |        |                              |
- --------------------------------                  --------------------------------         |        --------------------------------
              |                                                                            |
- --------------------------------                  --------------------------------         |        --------------------------------
|    NCC OF AMERICA, LTD.      |                  |         SVM SALES            |         |        |          AUTO DIREKT         |
|        (INACTIVE)            |                  |            GmbH              |         |        |       INSURANCE COMPANY      |
|                              |                  |                              |         |        |                              |
|                              |                  |Common Stock:    50 Shares    |         |        |Common Stock:    1,500 Shares |
|                              |                  |------------                  |----------------- |------------                  |
|                              |                  |                 Cost         |                  |                 Cost         |
|NC-100%                       |                  |                 ----         |                  |                 ----         |
|                              |                  |Neckura-100%     DM 50,000    |                  |Neckura-100%     DM 1,643,149 |
|                              |                  |                              |                  |                              |
|                              |                  |                              |                  |                              |
- --------------------------------                  --------------------------------                  --------------------------------
                                
</TABLE>

<PAGE>   79
<TABLE>
<CAPTION>
                                                                                                                        (right side)
<S>     <C>                                       <C>                                              <C>         
                                                                                                            ------------------------
                                                                                                            | NATIONWIDE INSURANCE |
                                                                                                            | ENTERPRISE FOUNDATION|
                                                                                                            |                      |
                                                                                                            |      MEMBERSHIP      |
                                                                                                            |      NONPROFIT       |
                                                                                                            |     CORPORATION      |
                                                                                                            ------------------------
       -----------------------------------------------------------------------------
       |                                                                           |
       |                                                                           |
       |                           NATIONWIDE MUTUAL                               |
=======|                         FIRE INSURANCE COMPANY                            |
       |                                (FIRE)                                     |
       |                                                                           |
       |                                                                           |
       -----------------------------------------------------------------------------
                                                                       |
- ---------------                                                        --------------------------------------------------
              |                                                                                                         |
- -----------------------------------------------------------------------------------------------------------------       |
  |                                          |                                                                  |       |
  |     --------------------------------     |    --------------------------------                ----------------------------------
  |     |         SCOTTSDALE           |     |    |         NATIONWIDE           |                |          NATIONWIDE            |
  |     |      INDEMNITY COMPANY       |     |    |      COMMUNITY URBAN         |                |          CORPORATION           |
  |     |                              |     |    |       REDEVELOPMENT          |                |                                |
  |     |                              |     |    |        CORPORATION           |                |Common Stock:    Control:       |
  |     |Common Stock:    50,000       |     |    |Common Stock:    10 Shares    |                |------------     -------        |
  |-----|------------     Shares       |     |----|------------                  |                |$13,642,432      100%           |
  |     |                 Cost         |     |    |                 Cost         |                |         Shares     Cost        |
  |     |                 ----         |     |    |                 ----         |                |         ------     ----        |
  |     |Casualty-100%    $8,800,000   |     |    |Casualty-100%    $1,000       |                |Casualty 12,992,922 $751,352,485|
  |     |                              |     |    |                              |                |Fire        649,510   24,007,936|
  |     |                              |     |    |                              |                |          (See Page 2)          |
  |     --------------------------------     |    --------------------------------                ----------------------------------
  |                                          |                                                      
  |     --------------------------------     |    --------------------------------                                                  
  |     |         NATIONWIDE           |     |    |          INSURANCE           |                                                  
  |     |      INDEMNITY COMPANY       |     |    |     INTERMEDIARIES, INC.     |                                                  
  |     |                              |     |    |                              |                                                  
  |-----|Common Stock:    28,000       |     |----|Common Stock:    1,615        |                                                  
  |     |------------     Shares       |     |    |------------     Shares       |                                                  
  |     |                 Cost         |     |    |                 Cost         |                                                  
  |     |                 ----         |     |    |                 ----         |                                                  
  |     |Casualty-100%    $294,529,000 |     |    |Casualty-100%    $1,615,000   |                                                  
  |     --------------------------------     |    --------------------------------                                                  
  |                                          |                                                                                      
  |     --------------------------------     |    --------------------------------                                                  
  |     |          LONE STAR           |     |    |       NATIONWIDE CASH        |                                                  
  |     |     GENERAL AGENCY, INC.     |     |    |      MANAGEMENT COMPANY      |                                                  
  |     |                              |     |    |Common Stock:    100 Shares   |                                                  
  ------|Common Stock:    1,000        |     |----|------------                  |                                                  
  |     |------------     Shares       |     |    |                 Cost         |                                                  
  |     |                 Cost         |     |    |                 ----         |                                                  
  |     |                 ----         |     |    |Casualty-90%     $9,000       |                                                  
  |     |Casualty-100%    $5,000,000   |     |    |NW Adv. Serv.     1,000       |                                                  
  |     --------------------------------     |    --------------------------------                                                  
  |                   ||                     |                                                                                      
  |     --------------------------------     |    --------------------------------                                                  
  |     |   COLONIAL COUNTY MUTUAL     |     |    |       CALIFORNIA CASH        |                                                  
  |     |      INSURANCE COMPANY       |     |    |          MANAGEMENT          |                                                  
  |     |                              |     |    |          (Inactive)          |
  |     |Surplus Debentures            |     |    |                              |                                                  
  |     |------------------            |     |----|                              |                                                  
  |     |                 Cost         |     |    |                              |                                                  
  |     |                 ----         |     |    |                              |                                                  
  |     |Colonial         $500,000     |     |    |Casualty-100%                 |                                                  
  |     |Lone Star         150,000     |     |    |                              |                                                  
  |     --------------------------------     |    --------------------------------                                                  
  |                                          |                                                      
  |     --------------------------------     |    --------------------------------                                                  
  |     |       TIG COUNTRYWIDE        |     |    |         THE BEAK AND         |                                                  
  |     |      INSURANCE COMPANY       |     |    |       WIRE CORPORATION       |                                                  
  |     |Common Stock     12,500       |     |    |                              |                                                  
   -----|------------     Shares       |     |    |Common Stock:    750 Shares   |                                                  
  |     |                              |     -----|------------                  |                                                  
  |     |                 Cost         |     |    |                 Cost         |                                                  
  |     |                 ----         |     |    |                 ----         |                                                  
  |     |Casualty-100%    $215,273,000 |     |    |Casualty-100%    $1,419,000   |                                                  
  |     |                              |     |    |                              |                                                  
  |     --------------------------------     |    |                              |                                                  
  |                                          |    --------------------------------                                                  
  |                                          |
  |     --------------------------------     |    --------------------------------
  |     |     NATIONWIDE INSURANCE     |     |    |  NATIONWIDE/DISPATCH LLC     |
  |     |   ENTERPRISE SERVICES, LTD.  |     |    |                              |
  |     |                              |     |    |                              |
  |     |Single Member Limited         |     |    |                              |
  - - - |Liability Company             |     - - -|                              |
        |                              |          |                              |
        |                              |          |                              |
        |Casualty-100%                 |          |Casualty-90%                  |
        |                              |          |                              |
        --------------------------------          |                              |
                                                  --------------------------------

Subsidiary Companies      -- Solid Line
Contractual Association   -- Double Lines
Limited Liability Company -- Dotted Line

December 31, 1997
</TABLE>
<PAGE>   80
<TABLE>
<CAPTION>
                                                                                                                        (Left Side)

                                         ------------------------------------------------
                                        |              EMPLOYERS INSURANCE               |
                                        |                  OF WAUSAU                     |==========================================
                                        |               A MUTUAL COMPANY                 |
                                         ------------------------------------------------



























<S>            <C>                <C>             <C>               <C>              <C>               <C>
                              ------------------------------------------------------------------------------------------------------
                             |                                  |                                   |
                ---------------------------        ---------------------------        ---------------------------
               | NATIONWIDE LIFE INSURANCE |      |        NATIONWIDE         |      |   NATIONWIDE FINANCIAL    |
               |     COMPANY (NW LIFE)     |      |    FINANCIAL SERVICES     |      | INSTITUTION DISTRIBUTORS  |
               |                           |      |      CAPITAL TRUST        |      |   AGENCY, INC. (NFIDAI)   |
               | Common Stock: 3,814,779   |      | Preferred Stock:          |      | Common Stock:     1,000   |
               | ------------  Shares      |      | ---------------           |      | ------------      Shares  |
               |                           |      |                           |      |                           |
               | NFS--100%                 |      | NFS--100%                 |      | NFS--100%                 |
                ---------------------------        ---------------------------        ---------------------------
                               |                                                                    ||  
 ---------------------------   |   ---------------------------        ---------------------------   ||   -------------------------- 
|    NATIONWIDE LIFE AND    |  |  |         NATIONWIDE        |      |     FINANCIAL HORIZONS    |  ||  |                          |
| ANNUITY INSURANCE COMPANY |  |  |  ADVISORY SERVICES, INC.  |      |    DISTRIBUTORS AGENCY    |  ||  |                          |
|                           |  |  |      (NW ADV. SERV.)      |      |      OF ALABAMA, INC.     |  ||  |                          |
| Common Stock: 66,000      |  |  | Common Stock: 7,676       |      | Common Stock: 10,000      |  ||  |    FINANCIAL HORIZONS    |
| ------------  Shares      |--|--| ------------  Shares      |==||  | ------------  Shares      |--||==|    DISTRIBUTORS AGENCY   |
|                           |  |  |                           |  ||  |                           |  ||  |       OF OHIO, INC.      |
|               Cost        |  |  |               Cost        |  ||  |               Cost        |  ||  |                          |
|               ----        |  |  |               ----        |  ||  |               ----        |  ||  |                          |
| NW Life -100% $58,070,003 |  |  | NW Life -100% $5,996,261  |  ||  | NFIDAI -100% $100         |  ||  |                          |
 ---------------------------   |   ---------------------------   ||   ---------------------------   ||   -------------------------- 
                               |                                 ||                                 ||                              
 ---------------------------   |   ---------------------------   ||   ---------------------------   ||   --------------------------
|         NWE, INC.         |  |  |        NATIONWIDE         |  ||  |    LANDMARK FINANCIAL     |  ||  |                          |
|                           |  |  |  INVESTORS SERVICES, INC. |  ||  |        SERVICES OF        |  ||  |                          |
|                           |  |  |                           |  ||  |       NEW YORK, INC.      |  ||  |                          |
| Common Stock: 100         |  |  | Common Stock: 5 Shares    |  ||  | Common Stock: 10,000      |  ||  |    FINANCIAL HORIZONS    |
| ------------  Shares      |--|  | ------------              |==||  | ------------  Shares      |--||==|    DISTRIBUTORS AGENCY   |
|                           |  |  |                           |  ||  |                           |  ||  |     OF OKLAHOMA, INC.    |
|               Cost        |  |  |                     Cost  |  ||  |               Cost        |  ||  |                          |
|               ----        |  |  |                     ----  |  ||  |               ----        |  ||  |                          |
| NW Life -100% $35,971,375 |  |  | NW Adv. Serv. -100% $5,000|  ||  | NFIDAI -100% $10,100      |  ||  |                          |
 ---------------------------   |   ---------------------------   ||   ---------------------------   ||   --------------------------
                               |                                 ||                                 ||    
 ---------------------------   |   ---------------------------   ||   ---------------------------   ||   --------------------------
|   NATIONWIDE INVESTMENT   |  |  |    FINANCIAL HORIZONS     |  ||  |     FINANCIAL HORIZONS    |  ||  |                          |
|   SERVICES CORPORATION    |  |  |     INVESTMENT TRUST      |  ||  |      SECURITIES CORP.     |  ||  |                          |
|                           |  |  |                           |  ||  |                           |  ||  |                          |
| Common Stock: 5,000       |  |  |                           |  ||  | Common Stock: 10,000      |  ||  |    FINANCIAL HORIZONS    |
| ------------  Shares      |--|  |                           |==||  | ------------  Shares      |--||==|    DISTRIBUTORS AGENCY   |
|                           |  |  |                           |  ||  |                           |  ||  |       OF TEXAS, INC.     |
|               Cost        |  |  |                           |  ||  |               Cost        |  ||  |                          |
|               ----        |  |  |                           |  ||  |               ----        |  ||  |                          |
| NW Life -100% $529,728    |  |  |      COMMON LAW TRUST     |  ||  | NFIDAI -100% $153,000     |  ||  |                          |
 ---------------------------   |   ---------------------------   ||   ---------------------------   ||   --------------------------
                               |                                 ||                                 ||                    
 ---------------------------   |   ---------------------------   ||   ---------------------------   ||   --------------------------
|     NATIONWIDE REALTY     |  |  |         NATIONWIDE        |  ||  |   AFFILIATE AGENCY, INC.  |  ||  |                          |
|      PROPERTIES, LTD.     |  |  |         INVESTING         |  ||  |                           |  ||  |                          |
|                           |  |  |         FOUNDATION        |  ||  |                           |  ||  |                          |
| Units:                    |  |  |                           |  ||  | Common Stock: 100         |  ||  |          AFFILIATE       |
| ------                    - -|  |                           |==||  | ------------  Shares      |--||==|          AGENCY OF       |
|                           |  |  |                           |  ||  |                           |      |          OHIO, INC.      |
|                           |  |  |                           |  ||  |               Cost        |      |                          |
| NW Life -90%              |  |  |                           |  ||  |               ----        |      |                          |
| NW Mutual-10%             |  |  |      COMMON LAW TRUST     |  ||  | NFIDAI -100% $100         |      |                          |
 ---------------------------   |   ---------------------------   ||   ---------------------------        --------------------------
                               |                                 ||                                                                
 ---------------------------   |   ---------------------------   ||                               
|        NATIONWIDE         |  |  |         NATIONWIDE        |  ||                               
|       PROPERTIES, LTD.    |  |  |          INVESTING        |  ||                               
|                           |  |  |        FOUNDATION II      |  ||                               
| Units:                    - -|  |                           |  ||                               
| ------                    |     |                           |==||                               
|                           |     |                           |  ||                               
|                           |     |                           |  ||                               
| NW Life -97.6%            |     |                           |  ||                               
| NW Mutual -2.4%           |     |      COMMON LAW TRUST     |  ||                               
 ---------------------------       ---------------------------   ||                               
                                                                 ||                               
                                   ---------------------------   ||                               
                                  |         NATIONWIDE        |  ||                               
                                  |      SEPARATE ACCOUNT     |  ||                               
                                  |            TRUST          |  ||                               
                                  |                           |  ||                               
                                  |                           |__||                               
                                  |                           |                                   
                                  |                           |                                   
                                  |                           |                                   
                                  |      COMMON LAW TRUST     |                                   
                                   ---------------------------                                    
</TABLE>                           
<PAGE>   81
<TABLE>
<CAPTION>
                                                                                                                           (Center)
                                               NATIONWIDE INSURANCE ENTERPRISE (R)
<S>            <C>                <C>             <C>               <C>              <C>               <C>
                                         ------------------------------------------------
                                        |               NATIONWIDE MUTUAL                |
========================================|               INSURANCE COMPANY                |==========================================
                                        |                  (CASUALTY)                    |
                                         ------------------------------------------------
                                                                 |
                                                                 |        ----------------------------------------------------------
                                                                 |        |     
                                               ---------------------------------------
                                              |    NATIONWIDE CORPORATION (NW CORP)   |
                                              |   Common Stock:           Control     |
                                              |   ------------            -------     |
                                              |    13,642,432               100%      |
                                              |              Shares      Cost         |
                                              |             ------      ----          |
                                              | Casualty    12,992,922   $751,352,485 |
                                              | Fire           649,510     24,007,936 |
                                               ---------------------------------------
                                                                  |-----------------------------------------------------------------
                                                    ---------------------------                      |
                                                   |    NATIONWIDE FINANCIAL   |                     |
                                                   |    SERVICES, INC. (NFS)   |                     | 
                                                   |                           |                     |
                                                   | Common Stock: Control     |                     |
                                                   | ------------  -------     |                     |
                                                   |                           |                     |
                                                   |                           |                     |
                                                   | Class A     Public--100%  |                     |
                                                   | Class B     NW Corp--100% |                     |
                                                    ---------------------------                      |
                                                                  |                                  |     
              ----------------------------------------------------------------------                 | 
              |                               |                                    |                 |
 ---------------------------    ---------------------------         ---------------------------      |   ------------------------- 
|    IRVIN L. SCHWARTZ      |  | PUBLIC EMPLOYEES BENEFIT  |       |      NEA VALUEBUILDER     |     |  |    NATIONWIDE GLOBAL    |
|       & ASSOCIATES        |  |   SERVICES CORPORATION    |       |   INVESTOR SERVICES, INC. |     |  |      HOLDINGS, INC.     |
|                           |  |         (PEBSCO)          |       |             (NEA)         |     |  |                         | 
| Common Stock: Control     |  | Common Stock: 236,494     |==||   | Common Stock: 500         |= || |  | Common Stock: 1 Share   | 
| ------------  -------     |  | ------------  Shares      |  ||   | ------------  Shares      |  || |--| ------------            | 
|                           |  |                           |  ||   |                           |  || |  |                         | 
|                           |  |                           |  ||   |                           |  || |  |             Cost        | 
| Class A     Other -100%   |  |                           |  ||   |                           |  || |  |             ----        | 
| Class B     NFS -100%     |  | NFS -100%                 |  ||   | NFS -100%                 |  || |  | NW Corp-100%  $7,000,00 | 
- ----------------------------   ----------------------------   ||   ----------------------------   || |  --------------------------  
                                ---------------------------   ||    ---------------------------   || |                              
                               |         PEBSCO OF         |  ||   |     NEA VALUEBUILDER      |  || |  --------------------------  
                               |          ALABAMA          |  ||   |     INVESTOR SERVICES     |  || |  |   MRM INVESTMENT, INC.  | 
                               |                           |  ||   |     OF ALABAMA, INC.      |  || |  |                         | 
                               | Common Stock: 100,000     |  ||   | Common Stock: 500         |  || |  |                         | 
                               | ------------  Shares      |--||   | ------------  Shares      |--|| __ | Common Stock: 1 Share   | 
                               |                           |  ||   |                           |  ||    | -----------             | 
                               |               Cost        |  ||   |               Cost        |  ||    |                         | 
                               |               ----        |  ||   |               ----        |  ||    |             Cost        | 
                               | PEBSCO -100%  $1,000      |  ||   | NEA -100%      $5,000     |  ||    |             ----        | 
                                ---------------------------   ||    ---------------------------   ||    | NW Corp.-100% $7,000,000| 
                                                              ||                                  ||    --------------------------  
                                ---------------------------   ||    ---------------------------   ||                                
                               |         PEBSCO OF         |  ||   |     NEA VALUEBUILDER      |  ||                                
                               |         ARKANSAS          |  ||   |     INVESTOR SERVICES     |  ||                                
                               |                           |  ||   |      OF ARIZONA, INC.     |  ||                                
                               | Common Stock: 50,000      |  ||   | Common Stock: 100         |  ||                                
                               | ------------  Shares      |--||   | ------------  Shares      |--||                                
                               |                           |  ||   |                           |  ||                                
                               |               Cost        |  ||   |               Cost        |  ||                                
                               |               ----        |  ||   |               ----        |  ||                                
                               | PEBSCO -100%  $500        |  ||   | NEA -100%     $1,000      |  ||                                
                                ---------------------------   ||    ---------------------------   ||                                
                                                              ||                                  ||                                
                                ---------------------------   ||    ---------------------------   ||                                
                               |  PEBSCO OF MASSACHUSETTS  |  ||   |     NEA VALUEBUILDER      |  ||                                
                               |  INSURANCE AGENCY, INC.   |  ||   |     INVESTOR SERVICES     |  ||                                
                               |                           |  ||   |      OF MONTANA, INC.     |  ||                                
                               | Common Stock: 1,000       |  ||   | Common Stock: 500         |  ||                                
                               | ------------  Shares      |--||   | ------------  Shares      |--||                                
                               |                           |  ||   |                           |  ||                                
                               |               Cost        |  ||   |               Cost        |  ||                                
                               |               ----        |  ||   |               ----        |  ||                                
                               | PEBSCO -100%  $1,000      |  ||   | NEA -100%     $500        |  ||                                
                                ---------------------------   ||    ---------------------------   ||                                
                                                              ||                                  ||                                
                                ---------------------------   ||    ---------------------------   ||     -------------------------  
                               |         PEBSCO OF         |  ||   |     NEA VALUEBUILDER      |  ||    |    NEA VALUEBUILDER     | 
                               |          MONTANA          |  ||   |     INVESTOR SERVICES     |  ||    |    INVESTOR SERVICES    | 
                               |                           |  ||   |      OF NEVADA, INC.      |  ||    |      OF OHIO, INC.      | 
                               | Common Stock: 500         |  ||   | Common Stock: 500         |  ||    |                         | 
                               | ------------  Shares      |--||   | ------------  Shares      |--||====|                         | 
                               |                           |  ||   |                           |  ||    |                         | 
                               |               Cost        |  ||   |               Cost        |  ||    |                         |
                               |               ----        |  ||   |               ----        |  ||    |                         | 
                               | PEBSCO -100%  $500        |  ||   | NEA -100%     $500        |  ||    |                         | 
                                ---------------------------   ||    ---------------------------   ||    --------------------------  
                                                              ||                                  ||                                
                                ---------------------------   ||    ---------------------------   ||     -------------------------  
                               |         PEBSCO OF         |  ||   |     NEA VALUEBUILDER      |  ||    |    NEA VALUEBUILDER     | 
                               |        NEW MEXICO         |  ||   |     INVESTOR SERVICES     |  ||    |    INVESTOR SERVICES    | 
                               |                           |  ||   |      OF WYOMING, INC.     |  ||    |    OF OKLAHOMA, INC.    | 
                               | Common Stock: 1,000       |  ||   | Common Stock: 500         |  ||    |                         | 
                               | ------------  Shares      |--||   | ------------  Shares      |--||====|                         | 
                               |                           |  ||   |                           |  ||    |                         | 
                               |               Cost        |  ||   |               Cost        |  ||    |                         | 
                               |               ----        |  ||   |               ----        |  ||    |                         | 
                               | PEBSCO -100%  $1,000      |  ||   | NEA -100%     $500        |  ||    |                         | 
                                ---------------------------   ||    ---------------------------   ||    --------------------------  
                                                              ||                                  ||                                
                                ---------------------------   ||    ---------------------------   ||    --------------------------  
                               |                           |  ||   |     NEA VALUEBUILDER      |  ||    |    NEA VALUEBUILDER     | 
                               |                           |  ||   |    SERVICES INSURANCE     |  ||    |   INVESTOR SERVICES     | 
                               |         PEBSCO OF         |  ||   |       AGENCY, INC.        |  ||    |     OF TEXAS, INC.      | 
                               |        TEXAS, INC.        |  ||   | Common Stock: 100         |  ||    |                         | 
                               |                           |==||   | ------------  Shares      |--||=== |                         |
                               |                           |       |                           |        |                         | 
                               |                           |       |               Cost        |        |                         | 
                               |                           |       |               ----        |        |                         | 
                               |                           |       | NEA -100%     $1,000      |        |                         | 
                                ---------------------------         ---------------------------         --------------------------  
</TABLE>
<PAGE>   82
<TABLE>
<CAPTION>
                                                                                                                            (Right)

<S>            <C>                <C>             <C>               <C>              <C>               <C>
                                         ------------------------------------------------
                                        |               NATIONWIDE MUTUAL                |
========================================|            FIRE INSURANCE COMPANY              |
                                        |                   (FIRE)                       |
                                         ------------------------------------------------
                                                                 |
- -----------------------------------------------------------------|   












- ----------------------------------------------------------------------------------------------
                              |                                |                              |
                ---------------------------         ------------------------------       ------------------------------
               |      GATES, MCDONALD        |     |   EMPLOYERS LIFE INSURANCE   |     |          NATIONWIDE          |
               |     & COMPANY (GATES)       |     |       OF WAUSAU (ELIOW)      |     |    HEALTH PLANS, INC. (NHP)  |
               |                             |     |                              |     |                              |
               | Common Stock:   254         |     | Common Stock:   250,000      |     | Common Stock:   100          |        
           |-- | ------------    Shares      |  |--| ------------    Shares       |  |--| ------------    Shares       |
           |   |                             |  |  |                              |  |  |                              |
           |   |                 Cost        |  |  |                 Cost         |  |  |                 Cost         | 
           |   |                 ----        |  |  |                 ----         |  |  |                 ----         |
           |   | NW CORP. -100%  $25,683,532 |  |  | NW CORP. -100%  $126,509,480 |  |  | NW CORP. -100%  $14,603,732  |
           |    -----------------------------   |   ------------------------------   |   ------------------------------
           |                                    |                                    |
           |    ---------------------------     |   ------------------------------   |   ------------------------------
           |   |  GATES, MCDONALD & COMPANY  |  |  |       WAUSAU PREFERRED       |  |  |    NATIONWIDE MANAGEMENT     |
           |   |      OF NEW YORK, INC.      |  |  |      HEALTH INSURANCE CO.    |  |  |         SYSTEMS, INC.        |
           |   |                             |  |  |                              |  |  |                              |
           |   | Common Stock:   3           |  |  | Common Stock:   200          |  |  | Common Stock:   100          |        
           |-- | ------------    Shares      |  |--| ------------    Shares       |  |--| ------------    Shares       |
           |   |                             |     |                              |  |  |                              |
           |   |                 Cost        |     |                 Cost         |  |  | NHP             Cost         | 
           |   |                 ----        |     |                 ----         |  |  |                 ----         |
           |   | GATES -100%     $106,947    |     | ELIOW -100%     $57,413,193  |  |  | Inc. -100%      $25,149      |
           |    -----------------------------       ------------------------------   |   ------------------------------
           |                                                                         |
           |    -----------------------------                                        |   ------------------------------
           |   |  GATES, MCDONALD & COMPANY  |                                       |  |            NATIONWIDE        |
           |   |         OF NEVADA           |                                       |  |          AGENCY, INC.        |
           |   |                             |                                       |  |                              |
           |   | Common Stock:   40          |                                       |  | Common Stock:   100          |        
           |-- | ------------    Shares      |                                       |--| ------------    Shares       |
           |   |                             |                                          |                              |
           |   |                 Cost        |                                          |                 Cost         | 
           |   |                 ----        |                                          | NHP             ----         |
           |   | Gates -100%     $93,750     |                                          | Inc. -99%       $116,077     |
           |    -----------------------------                                            ------------------------------
           |
           |    -----------------------------     
           |   |       GATESMCDONALD         |  
           |   |     HEALTH PLUS, INC.       |  
           |   |                             |  
           |   | Common Stock:   200         |       
           |-- | ------------    Shares      |  
               |                             |  
               |                 Cost        |  
               |                 ----        |  
               | Gates -100%     $2,000,000  |  
                -----------------------------   









                                                                                Subsidiary Companies    --   Solid Line

                                                                                Contractual Association  --  Double Line
                                                                                
                                                                                Limited Liability Company -- Dotted Line




     
                                                                                                         December 31, 1997

                                                                                                                    Page 2
</TABLE>
                                                
                                                                              
<PAGE>   83

Item 27.  Number of Contract Owners

         The number of Owners of Contracts as of January 31, 1998 was 3,071.

Item 28.  Indemnification

         Provision is made in the Company's Amended Code of Regulations and
         expressly authorized by the General Corporation Law of the State of
         Ohio, for indemnification by the Company of any person who was or is a
         party or is threatened to be made a party to any threatened, pending or
         completed action, suit or proceeding, whether civil, criminal,
         administrative or investigative by reason of the fact that such person
         is or was a director, officer or employee of the Company, against
         expenses, including attorneys' fees, judgments, fines and amounts paid
         in settlement actually and reasonably incurred by such person in
         connection with such action, suit or proceeding, to the extent and
         under the circumstances permitted by the General Corporation Law of the
         State of Ohio.

         Insofar as indemnification for liabilities arising under the Securities
         Act of 1933 ("Act") may be permitted to directors, officers or persons
         controlling the Company pursuant to the foregoing provisions, the
         Company has been informed that in the opinion of the Securities and
         Exchange Commission such indemnification is against public policy as
         expressed in the Act and is, therefore, unenforceable.


Item 29.      Principal Underwriter
              (a)   Nationwide Advisory Services, Inc. ("NAS") acts as principal
                    underwriter and general distributor for the NACo Variable
                    Account, Nationwide Multi-Flex Variable Account, Nationwide
                    DC Variable Account, Nationwide DCVA-II, Nationwide Variable
                    Account-II, Nationwide Variable Account-5, Nationwide
                    Variable Account-6, Nationwide Variable Account-8,
                    Nationwide Variable Account-9, Nationwide VA Separate
                    Account-A, Nationwide VA Separate Account-B, Nationwide VA
                    Separate Account-C, Nationwide VL Separate Account-A,
                    Nationwide VL Separate Account-B, Nationwide VL Separate
                    Account-C, Nationwide VLI Separate Account-2, Nationwide VLI
                    Separate Account-3, Nationwide VLI Separate Account-4 and
                    Nationwide Variable Account, all of which are separate
                    investment accounts of the Company or its affiliates.

                    NAS also acts as principal underwriter for Nationwide
                    Investing Foundation, Nationwide Separate Account Trust,
                    Financial Horizons Investment Trust, Nationwide Asset
                    Allocation Trust and Nationwide Investing Foundation II, and
                    Nationwide Investing Foundation III which are open-end
                    management investment companies.



         (b)               NATIONWIDE ADVISORY SERVICES, INC.
                                DIRECTORS AND OFFICERS
<TABLE>
<CAPTION>
                                                                       POSITIONS AND OFFICES
         NAME AND BUSINESS ADDRESS                                        WITH UNDERWRITER
<S>                                                                    <C>
Joseph J. Gasper                                                       President and Director
One Nationwide Plaza
Columbus, OH  43215

Dimon R. McFerson                                              Chairman of the Board of Directors and
One Nationwide Plaza                                                        Chairman and
Columbus, OH  43215                                             Chief Executive Officer--Nationwide
                                                                 Insurance Enterprise and Director

Robert A. Oakley                                             Executive Vice President - Chief Financial
One Nationwide Plaza                                                    Officer and Director
Columbus, OH  43215
</TABLE>





<PAGE>   84




         (b)              NATIONWIDE ADVISORY SERVICES, INC.
                               DIRECTORS AND OFFICERS

<TABLE>
<CAPTION>
<S>                                                                        <C>
Susan A. Wolken                                                               Director
One Nationwide Plaza
Columbus, OH 43215

Robert J. Woodward, Jr.                                     Executive Vice President - Chief Investment
One Nationwide Plaza                                                    Officer and Director
Columbus, OH 43215

Elizabeth A. Davin                                                      Assistant Secretary
One Nationwide Plaza
Columbus, OH 43215

W. Sidney Druen                                                      Senior Vice President and
One Nationwide Plaza                                                    General Counsel and
Columbus, OH  43215                                                     Assistant Secretary

Dennis W. Click                                                              Secretary
One Nationwide Plaza
Columbus, OH  43215

Peter J. Neckermann                                                        Vice President
One Nationwide Plaza
Columbus, OH  43215

James F. Laird, Jr.                                                  Vice President and General
One Nationwide Plaza                                                          Manager
Columbus, OH  43215

Edwin P. Mc Causland                                             Senior Vice President-Fixed Income
One Nationwide Plaza                                                         Securities
Columbus, OH 43215

William G. Goslee
One Nationwide Plaza                                                       Vice President
Columbus, OH  43215

Charles Bath
One Nationwide Plaza                                                Vice President - Investments
Columbus, OH  43215

Joseph P. Rath                                                      Vice President - Compliance
One Nationwide Plaza
Columbus, OH 43215

Christopher A. Cray                                                          Treasurer
One Nationwide Plaza
Columbus, OH 43215

David E. Simaitis                                                       Assistant Secretary
One Nationwide Plaza
Columbus, OH 43215

Patricia J. Smith                                                       Assistant Secretary
One Nationwide Plaza
Columbus, OH 43215
</TABLE>

<TABLE>
<CAPTION>
     (c)NAME OF        NET UNDERWRITING       COMPENSATION ON
       PRINCIPAL        DISCOUNTS AND          REDEMPTION OR        BROKERAGE
      UNDERWRITER        COMMISSIONS            ANNUITIZATION      COMMISSIONS         COMPENSATION
<S>                         <C>                      <C>               <C>                  <C>
       Nationwide           N/A                      N/A               N/A                  N/A
        Advisory
        Services,
          Inc.
</TABLE>






<PAGE>   85


Item 30.  Location of Accounts and Records

         Robert O. Cline
         Nationwide Life Insurance Company
         One Nationwide Plaza
         Columbus, OH 43215

Item 31.  Management Services

         Not Applicable

Item 32.  Undertakings

         The Registrant hereby undertakes to:
         (a)      File a post-effective amendment to this registration statement
                  as frequently as is necessary to ensure that the audited
                  financial statements in the registration statement are never
                  more than 16 months old for so long as payments under the
                  variable annuity contracts may be accepted;

         (b)      Include either (1) as part of any application to purchase a
                  contract offered by the prospectus, a space that an applicant
                  can check to request a Statement of Additional Information, or
                  (2) a post card or similar written communication affixed to or
                  included in the prospectus that the applicant can remove to
                  send for a Statement of Additional Information; and

         (c)      Deliver any Statement of Additional Information and any
                  financial statements required to be made available under this
                  Form promptly upon written or oral request.

         (d)      Represent that any contract offered by the prospectus and
                  which is issued pursuant to Section 403(b) of the Code, is
                  issued by the Registrant in reliance upon, and in compliance
                  with, the Securities and Exchange Commission's no-action
                  letter to the American Council of Life Insurance (publicly
                  available November 28, 1988) which permits withdrawal
                  restrictions to the extent necessary to comply with IRC
                  Section 403(b)(11).

         The Depositor hereby represents:

          (a)     That the fees and charges deducted under the Contract in the
                  aggregate are reasonable in relation to the services rendered,
                  the expenses expected to be incurred, and the risks assumed by
                  the Company.





<PAGE>   86



- --------------------------------------------------------------------------------

                                   PROSPECTUS

- --------------------------------------------------------------------------------

         NACo National Association of Counties

         Counties Care for America
























                                               Group
                                               Flexible Fund
                                               Retirement
                                               Contracts

                                               offered by

                                               NATIONWIDE
                                               Life Insurance 
                                               Company
                                               through its NACo Variable Account

- --------------------------------------------------------------------------------

                                   MAY 1, 1998

- --------------------------------------------------------------------------------





<PAGE>   87


INDEPENDENT AUDITORS' CONSENT AND REPORT ON FINANCIAL STATEMENT SCHEDULES




The Board of Directors of Nationwide Life Insurance Company and Contract Owners
of NACo Variable Account:


The audits referred to in our report on Nationwide Life Insurance Company (the
Company) dated January 30, 1998, included the related financial statement
schedules as of December 31, 1997, and for each of the years in the three-year
period ended December 31, 1997, included in the registration statement. These
financial statement schedules are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statement schedules based on our audits. In our opinion, such financial
statement schedules, when considered in relation to the basic consolidated
financial statements taken as a whole, present fairly in all material respects
the information set forth therein.

We consent to the use of our reports included herein and to the references to
our firm under the heading "Services" in the Statement of Additional
Information.




                                                           KPMG Peat Marwick LLP


Columbus, Ohio
April 29, 1998


<PAGE>   88

<PAGE>   1



                                                                     SCHEDULE I

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES

                      CONSOLIDATED SUMMARY OF INVESTMENTS -
                    OTHER THAN INVESTMENTS IN RELATED PARTIES
                            (in millions of dollars)

                             As of December 31, 1997
<TABLE>
<CAPTION>

- -----------------------------------------------------------------------------   -------------  --------------  ---------------
                                  Column A                                        Column B       Column C         Column D
- -----------------------------------------------------------------------------   -------------  --------------  ---------------
                                                                                                                 Amount at
                                                                                                                which shown
                                                                                                                   in the
                                                                                                  Market        consolidated
                             Type of Investment                                     Cost           value       balance sheet
- -----------------------------------------------------------------------------   -------------  --------------  ---------------
Fixed maturity securities available-for-sale:
   Bonds:
<S>                                                                              <C>            <C>             <C>       
      U.S. Government and government agencies and authorities                    $  3,859.7     $  3,981.7      $  3,981.7
      States, municipalities and political subdivisions                                 1.6            1.6             1.6
      Foreign governments                                                              93.3           95.8            95.8
      Public utilities                                                              1,555.3        1,609.8         1,609.8
      All other corporate                                                           7,223.0        7,515.2         7,515.2
                                                                                 ----------     ----------      ----------
          Total fixed maturity securities available-for-sale                       12,732.9       13,204.1        13,204.1
                                                                                 ----------     ----------      ----------

Equity securities available-for-sale:
   Common stocks:
      Industrial, miscellaneous and all other                                          67.8           78.0            78.0
   Non-redeemable preferred stock                                                       -              2.4             2.4
                                                                                 ----------     ----------      ----------
          Total equity securities available-for-sale                                   67.8           80.4            80.4
                                                                                 ----------     ----------      ----------

Mortgage loans on real estate, net                                                  5,228.1                        5,181.6   (1)
Real estate, net:
   Investment properties                                                              254.9                          235.7   (1)
   Acquired in satisfaction of debt                                                    82.6                           75.7   (1)
Policy loans                                                                          415.3                          415.3
Other long-term investments                                                            27.9                           25.2   (2)
Short-term investments                                                                358.4                          358.4
                                                                                 ----------                     ----------
          Total investments                                                       $19,167.9                      $19,576.4
                                                                                 ==========                     ==========
</TABLE>
- ----------
(1)  Difference from Column B is primarily due to valuation allowances due to
     impairments on mortgage loans on real estate and due to accumulated
     depreciation and valuation allowances due to impairments on real estate.
     See note 3 to the consolidated financial statements.
(2)  Difference from Column B is primarily due to operating gains (losses) of
     investments in limited partnerships.

See accompanying independent auditors' report.


<PAGE>   2


                                                                  SCHEDULE III

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES

                       SUPPLEMENTARY INSURANCE INFORMATION
                            (in millions of dollars)

   As of December 31, 1997, 1996 and 1995 and for each of the years then ended
<TABLE>
<CAPTION>
- --------------------------------   ----------------- -------------------- ------------------- ------------------ ---------------
              Column A                  Column B          Column C             Column D           Column E          Column F
- --------------------------------   ----------------- -------------------- ------------------- ------------------ ---------------
                                        Deferred        Future policy                           Other policy
                                         policy       benefits, losses,        Unearned          claims and
                                      acquisition        claims and            premiums       benefits payable      Premium
              Segment                    costs          loss expenses            (1)                 (1)            revenue
- -------------------------------   ------------------ -------------------- ------------------- ------------------ ---------------

1997: Variable Annuities                $1,018.4       $         -                                                 $     -
          Fixed Annuities                  277.9            14,103.1                                                    27.3
          Life Insurance                   472.9             2,683.4                                                   178.1
          Corporate and Other             (103.8)            1,916.3                                                     -
                                        --------       -------------                                               ---------
             Total                      $1,665.4           $18,702.8                                               $   205.4
                                        ========       =============                                               =========

1996: Variable Annuities                $  792.1       $         -                                                 $     -
          Fixed Annuities                  242.0            13,388.9                                                    24.0
          Life Insurance                   414.4             2,391.5                                                   174.6
          Corporate and Other              (82.0)            1,820.2                                                     -
                                        --------       -------------                                               ---------
             Total                      $1,366.5           $17,600.6                                               $   198.6
                                        ========       =============                                               =========

1995: Variable Annuities                $  569.8       $         -                                                 $     -
          Fixed Annuities                  220.7            12,759.3                                                    32.8
          Life Insurance                   366.9             2,282.6                                                   166.3
          Corporate and Other             (136.9)            1,730.0                                                     -
                                        --------       -------------                                               ---------
             Total                      $1,020.5       $    16,771.9                                               $   199.1
                                        ========       =============                                               =========


- ---------------------------------------------------- -------------------- ------------------- ------------------ ---------------
              Column A                  Column G          Column H             Column I           Column J          Column K
- ---------------------------------------------------- -------------------- ------------------- ------------------ ----------------
                                     Net investment   Benefits, claims,      Amortization           Other
                                         income          losses and       of deferred policy      operating         Premiums
              Segment                     (2)        settlement expenses  acquisition costs       expenses          written
                                                                                                     (2)
- ---------------------------------------------------- -------------------- ------------------- ------------------ ---------------

<C>                                    <C>             <C>                     <C>                  <C>   
1997: Variable Annuities                $  (26.8)         $      5.9           $  87.8             $ 159.4
          Fixed Annuities                1,098.2               846.7              39.8                85.4
          Life Insurance                   189.1               227.5              39.6                94.5
          Corporate and Other              148.7               114.7               -                  45.6
                                        --------          ----------           -------             -------
             Total                      $1,409.2          $  1,194.8           $ 167.2             $ 384.9
                                        ========          ==========           =======             =======

1996: Variable Annuities                $  (21.4)         $      4.6           $  57.4             $ 132.3
          Fixed Annuities                1,050.6               838.5              38.6                79.7
          Life Insurance                   174.0               211.4              37.4                79.0
          Corporate and Other              154.6               106.1               -                  51.4
                                        --------          ----------           -------             -------
             Total                      $1,357.8          $  1,160.6           $ 133.4             $ 342.4
                                        ========          ==========           =======             =======

1995: Variable Annuities                $  (17.6)         $      2.9           $  26.3             $ 109.1
          Fixed Annuities                1,002.7               805.0              29.5                80.3
          Life Insurance                   171.2               202.0              31.0                68.8
          Corporate and Other              137.7               105.6              (4.1)               14.8
                                        --------          ----------           -------             -------
             Total                      $1,294.0          $  1,115.5           $  82.7             $ 273.0
                                        ========          ==========           =======             =======
</TABLE>
- ----------
(1) Unearned premiums and other policy claims and benefits payable are included
    in Column C amounts.
(2) Allocations of net investment income and certain operating expenses are
    based on a number of assumptions and estimates, and reported operating
    results would change by segment if different methods were applied.


See accompanying independent auditors' report.




<PAGE>   3


                                                                    SCHEDULE IV

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES

                                   REINSURANCE
                            (in millions of dollars)

   As of December 31, 1997, 1996 and 1995 and for each of the years then ended

<TABLE>
<CAPTION>
- -----------------------------------------------   ---------------  --------------  -------------   -------------   ------------
                   Column A                          Column B        Column C        Column D        Column E       Column F
- -----------------------------------------------   ---------------  --------------  -------------   -------------   ------------
                                                                                                                   Percentage
                                                                     Ceded to        Assumed                        of amount
                                                      Gross            other        from other         Net           assumed
                                                      amount         companies      companies         amount         to net
                                                  ---------------  --------------  -------------   -------------   ------------

<S>                                                  <C>             <C>               <C>           <C>                 <C> 
1997:
  Life insurance in force                           $ 52,648.4       $13,678.7       $  289.7      $  39,259.4           0.7%
                                                   ===========       =========       ========      ===========        =======

  Premiums:
    Life insurance                                  $    235.9       $    32.7       $    2.2      $     205.4           1.1%
    Accident and health insurance                        261.2           272.6           11.4              -             N/A
                                                   -----------       ----------      ---------     -----------        -------
        Total                                       $    497.1       $   305.3       $   13.6      $     205.4            6.6%
                                                   ===========       =========       =========     ===========        =======


1996:
  Life insurance in force                            $47,150.6       $11,164.6       $  288.6      $  36,274.6            0.8%
                                                   ===========       =========       ========      ===========        =======

  Premiums:
    Life insurance                                  $    225.6       $    29.3       $    2.3      $     198.6            1.2%
    Accident and health insurance                        291.9           305.8           13.9              -            N/A
                                                   -----------       ---------       --------      -----------        -------
        Total                                       $    517.5       $   335.1       $   16.2      $     198.6            8.2%
                                                   ===========       =========       ========      ===========        =======


1995:
  Life Insurance in force                            $41,087.9       $ 8,935.7       $  391.2      $  32,543.4            1.2%
                                                   ===========       =========       ========      ===========        =======

  Premiums:
    Life insurance                                  $    221.3       $    24.4       $    2.2      $     199.1            1.1%
    Accident and health insurance                        298.0           313.0           15.0              -            N/A
                                                   -----------       ---------       --------      -----------        -------
        Total                                       $    519.3       $   337.4       $   17.2      $     199.1            8.6%
                                                   ===========       =========       ========      ===========        =======
</TABLE>
- ----------
Note:  The life insurance caption represents principally premiums from
       traditional life insurance and life-contingent immediate annuities and
       excludes deposits on investment products and universal life insurance
       products.

See accompanying independent auditors' report.




<PAGE>   4


                                                                    SCHEDULE V

               NATIONWIDE LIFE INSURANCE COMPANY AND SUBSIDIARIES

                        VALUATION AND QUALIFYING ACCOUNTS
                            (in millions of dollars)

                  Years ended December 31, 1997, 1996 and 1995

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------- ------------- -------------
                        Column A                            Column B             Column C              Column D      Column E
- ---------------------------------------------------  ----------------------------------------------- ------------- -------------
                                                           Balance at    Charged to     Charged to                  Balance at
                                                            beginning     costs and       other       Deductions      end of
Description                                                 of period     expenses       accounts        (1)          period
- ---------------------------------------------------   -------------------------------- ------------- ------------- -------------

<S>                                                          <C>            <C>            <C>            <C>         <C>  
1997:
  Valuation allowances - fixed maturity securities          $    -          $ 16.2         $  -          $ 16.2       $   -
  Valuation allowances - mortgage loans on real estate          51.0          (1.2)           -             7.3          42.5
  Valuation allowances - real estate                            15.2          (4.1)           -             -            11.1
                                                            --------        ------       -------        -------       -------
      Total                                                 $   66.2        $ 10.9         $  -          $ 23.5       $  53.6
                                                            ========        ======       =======        =======       =======


1996:
  Valuation allowances - mortgage loans on real estate      $   49.1        $  4.5         $  -          $  2.6       $  51.0
  Valuation allowances - real estate                            25.8         (10.6)           -             -            15.2
                                                            --------        ------       -------        -------       -------
      Total                                                 $   74.9        $ (6.1)        $  -          $  2.6       $  66.2
                                                            ========        ======       =======        =======       =======


1995:
  Valuation allowances - fixed maturity securities          $    -          $  8.9         $  -          $  8.9       $   -
  Valuation allowances - mortgage loans on real estate          46.4           7.4            -             4.7          49.1
  Valuation allowances - real estate                            27.3          (1.5)           -             -            25.8
                                                            --------        ------       -------        -------       -------
      Total                                                 $   73.7        $ 14.8         $  -          $ 13.6       $  74.9
                                                            ========        ======       =======        =======       =======
</TABLE>

- ----------
(1) Amounts represent direct write-downs charged against the valuation
allowance.




See accompanying independent auditors' report.


<PAGE>   89
                                   SIGNATURES

   
As required by the Securities Act of 1933 and the Investment Company Act of
1940, the Registrant, NACo VARIABLE ACCOUNT certifies that it meets the
requirements of Securities Act Rule 485 for effectiveness of the Post-Effective
Amendment and has caused this Post-Effective Amendment to be signed on its
behalf in the City of Columbus, and State of Ohio, on this 30th day of June,
1998.
    

                                           NACo VARIABLE ACCOUNT
                                    ------------------------------------
                                               (Registrant)
                                    NATIONWIDE LIFE INSURANCE COMPANY
                                    ------------------------------------
                                                (Depositor)


                                          By /s/JOSEPH P. RATH
                                    ------------------------------------
                                               Joseph P. Rath
                                    Vice President-Product and Market Compliance

   
As required by the Securities Act of 1933, this Post-Effective Amendment has
been signed by the following persons in the capacities indicated on the 30th day
of June, 1998.
    

   
<TABLE>
<CAPTION>
        SIGNATURE                                      TITLE
<S>                                                   <C>                           <C>
LEWIS J. ALPHIN                                       Director
- ---------------------------
Lewis J. Alphin

A. I. BELL                                            Director
- ---------------------------
A. I. Bell

KEITH W. ECKEL                                        Director
- ---------------------------
Keith W. Eckel

WILLARD J. ENGEL                                      Director
- ---------------------------
Willard J. Engel

FRED C. FINNEY                                        Director
- ---------------------------
Fred C. Finney

CHARLES L. FUELLGRAF, JR.                             Director
- ---------------------------
Charles L. Fuellgraf, Jr.

JOSEPH J. GASPER                                 President and Chief
- ---------------------------
Joseph J. Gasper                            Operating Office and Director

DIMON R. McFERSON                        Chairman and Chief Executive Officer
- ---------------------------
Dimon R. McFerson                   Nationwide Insurance Enterprise and Director

DAVID O. MILLER                          Chairman of the Board and Director
- ---------------------------
David O. Miller

YVONNE L. MONTGOMERY                                  Director
- ---------------------------
Yvonne L. Montgomery

ROBERT A. OAKLEY                              Executive Vice President-
- ---------------------------
Robert A. Oakley                               Chief Financial Officer

JAMES F. PATTERSON                                    Director                      By /s/JOSEPH P. RATH
- ---------------------------                                                          ---------------------------
James F. Patterson                                                                    Joseph P. Rath
                                                                                      Attorney-in-Fact
ARDEN L. SHISLER                                      Director                      
- ---------------------------
Arden L. Shisler

ROBERT L. STEWART                                     Director
- ---------------------------
Robert L. Stewart

NANCY C. THOMAS                                       Director
- ---------------------------
Nancy C. Thomas

HAROLD W. WEIHL                                       Director
- ---------------------------
Harold W. Weihl
</TABLE>
    




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