UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                FORM 10-K405/A-2
(Mark One)
   [X]          ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                   SECURITIES EXCHANGE ACT OF 1934 (FEE REQUIRED)
                   For the fiscal year ended December 31, 1998
                                         OR
  [   ]       TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                 SECURITIES EXCHANGE ACT OF 1934 (NO FEE REQUIRED)
     For the transition period from ___________________ to ____________________

                          Commission File Number 1-6075

                            UNION PACIFIC CORPORATION
             (Exact name of registrant as specified in its charter)

          Utah                                               13-2626465
(State or other jurisdiction                              (I.R.S. Employer
of incorporation or organization)                       Identification No.)

                       1416 DODGE STREET, OMAHA, NEBRASKA
                    (Address of principal executive offices)


                                     68179
                                   (Zip Code)


                                 (402) 271-5777
               Registrant's telephone number, including area code
        ------------------------------------------------------------
Securities registered pursuant to Section 12(b) of the Act:
                                                      Name of each exchange on
         Title of each class                              which registered
- -----------------------------------                ----------------------------
Common Stock (Par Value $2.50 per share)           New York Stock Exchange, Inc.
- ----------------------------------------
  Indicate  by check mark  whether  the  registrant  (1) has filed all  reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days.
   Yes      X     No ____

   Indicate by check mark if disclosure of  delinquent  filers  pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ X ]
      ----------------------------------------------------------------
   As of February 26, 1999 the aggregate market value of the registrant's Common
Stock held by  non-affiliates  (using the New York Stock Exchange closing price)
was approximately $10,973,121,951.

   The  number of shares  outstanding  of the  registrant's  Common  Stock as of
February 26, 1999 was 247,579,048.



2 The undersigned Registrant hereby amends its Annual Report on Form 10-K for the fiscal year ended December 31, 1998 to include the following exhibits. The following exhibits supersede exhibits 23(c) and 99(c) previously filed under 10-K405/A-1 dated June 25, 1999. Exhibit Number Exhibit (23) Independent Auditors' Consent (99) Financial Statements for the Fiscal Years ended December 31, 1998 (Restated) and 1997 (Restated) required by Form 11-K for the Union Pacific Agreement Employee 401(k) Retirement Thrift Plan.

3 UNION PACIFIC CORPORATION SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Date: October 15, 1999 UNION PACIFIC CORPORATION (Registrant) /s/ James R. Young ------------------ James R. Young Senior Vice President - Finance and Controller

4 Exhibit Index Exhibit Number Exhibit (23) Independent Auditors' Consent (99) Financial Statements for the Fiscal Years ended December 31, 1998 (Restated) and 1997 (Restated) required by Form 11-K for the Union Pacific Agreement Employee 401(k) Retirement Thrift Plan.


                                                                      Exhibit 23



INDEPENDENT AUDITORS' CONSENT




We consent to the  incorporation  by reference  in  Registration  Statement  No.
333-13115 of Union Pacific  Corporation  on Form S-8 of our report dated May 17,
1999  (August 19, as to Note 10) (which  expresses  an  unqualified  opinion and
includes an explanatory  paragraph relating to the restatement described in Note
10),  appearing in Exhibit 99 of Amendment No. 2 to the Annual Report on Form 10
K of Union Pacific Corporation for the fiscal year ended December 31, 1998.





DELOITTE & TOUCHE LLP

Omaha, Nebraska
October 15, 1999





                                                                 Exhibit 99





UNION PACIFIC AGREEMENT EMPLOYEE
401(k) RETIREMENT THRIFT PLAN


Financial  Statements as of and for the Years Ended December 31, 1998 (Restated)
and  1997  (Restated),  Supplemental  Schedules  as of and for the  Years  Ended
December 31, 1998 and 1997 (Restated) and Independent Auditors' Report


INDEX UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN TABLE OF CONTENTS - ----------------------------------------------------------------------------- Page INDEPENDENT AUDITORS' REPORT 1 FINANCIAL STATEMENTS AS OF DECEMBER 31, 1998 (RESTATED) AND 1997 (RESTATED) AND FOR THE YEARS THEN ENDED: Statements of Net Assets Available for Benefits 2 Statements of Changes in Net Assets Available for Benefits 3 Notes to Financial Statements 4-9 SUPPLEMENTAL SCHEDULES AS OF DECEMBER 31, 1998 AND 1997 AND FOR THE YEARS THEN ENDED: Item 27a - Schedule of Assets Held for Investment Purposes, December 31, 1998 10 Item 27a - Schedule of Assets Held for Investment Purposes, December 31, 1997 (Restated) 11 Item 27d - Schedule of Reportable Transactions, Year Ended December 31, 1998 12 Item 27d - Schedule of Reportable Transactions, Year Ended December 31, 1997 13 Schedules not filed herewith are omitted because of the absence of the conditions under which they are required by the Employee Retirement Income Security Act of 1974.

1 INDEPENDENT AUDITORS' REPORT Union Pacific Agreement Employee 401(k) Retirement Thrift Plan We have audited the accompanying statements of net assets available for benefits of the Union Pacific Agreement Employee 401(k) Retirement Thrift Plan (the Plan) as of December 31, 1998 and 1997, and the related statements of changes in net assets available for benefits for the years then ended. These financial statements are the responsibility of the Plan'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. 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, such financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 1998 and 1997, and the changes in net assets available for benefits for the years then ended in conformity with generally accepted accounting principles. As discussed in Note 10 to the financial statements, the 1998 and 1997 financial statements have been restated. Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedules listed in the Table of Contents are presented for the purpose of additional analysis and are not a required part of the basic financial statements, but are supplementary information required by the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. These schedules are the responsibility of the Plan's management. Such schedules have been subjected to the auditing procedures applied in the audit of the basic financial statements and, in our opinion, are fairly stated in all material respects when considered in relation to the basic financial statements taken as a whole. DELOITTE & TOUCHE LLP Omaha, Nebraska May 17, 1999 (August 19, 1999 as to Note 10)

2 UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS DECEMBER 31, 1998 (RESTATED) AND 1997 (RESTATED) - ------------------------------------------------------------------------------- 1998 1997 (As restated, (As restated, see Note 10) see Note 10) ASSETS: Investments at fair value (Note 3) $ 325,391,442 $ 228,413,669 Contributions receivable 2,671,590 - ------------- ------------- Net assets available for benefits $ 328,063,032 $ 228,413,669 ============= ============= The accompanying notes are an integral part of these financial statements.

3 UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS FOR THE YEARS ENDED DECEMBER 31, 1998 (RESTATED) AND 1997 (RESTATED) - ------------------------------------------------------------------------------- 1998 1997 (As restated, (As restated, see Note 10) see Note 10) ADDITIONS TO NET ASSETS ATTRIBUTED TO: Investment income (Note 7): Net appreciation in fair value of investments (Note 3) $ 27,051,046 $ 15,163,982 Interest 637,025 485,016 Dividends 13,973,813 5,149,480 ------------ ------------ Total investment income 41,661,884 20,798,478 ------------ ------------ Employee contributions (Note 7) 67,803,914 32,360,426 ------------ ------------ Total additions 109,465,798 53,158,904 ------------ ------------ DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO: Distributions to participants (Note 7) 9,816,435 2,866,063 ------------ ------------ NET INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS PRIOR TO PLAN MERGER 99,649,363 50,292,841 PLAN MERGER (Notes 9 and 10) - 85,401,156 ------------ ------------ NET INCREASE IN NET ASSETS AVAILABLE FOR BENEFITS 99,649,363 135,693,997 NET ASSETS AVAILABLE FOR BENEFITS: Beginning of Year 228,413,669 92,719,672 ------------ ------------ End of Year $328,063,032 $228,413,669 ============ ============ The accompanying notes are an integral part of these financial statements.

4 UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN NOTES TO FINANCIAL STATEMENTS YEARS ENDED DECEMBER 31, 1998 AND 1997 - ----------------------------------------------------------------------------- 1. DESCRIPTION OF PLAN The following description of the Union Pacific Agreement Employee 401(k) Retirement Thrift Plan (the Plan) provides only general information. Participants should refer to the Plan document for a more complete description of the Plan's provisions. General - The Plan is a defined contribution plan covering employees of the Union Pacific Railroad Company and its Railroad affiliates (the Company) who are represented for the purposes of collective bargaining by a rail union, to which eligibility to participate in the Plan has been extended. The Plan covers employees who have completed one year of service or were employees as of the effective date of the Plan, July 1, 1990. It is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA), as amended. Spin-Off - In September 1996, Union Pacific Corporation's (the Corporation) Board of Directors declared a special dividend consisting of the shares of Union Pacific Resources Group Inc. (Resources) common stock owned by the Corporation (the Spin-Off). As a result of the Spin-Off, each of the Corporation's stockholders received 0.846946 of a share of Resources common stock for each share of Corporation common stock held by such stockholders at the September 26, 1996 record date for the distribution. Therefore, each Plan participant's account received 0.846946 of a share of Resources common stock for each share of Corporation common stock held in the account. The shares received were placed in the Union Pacific Railroad's Res (Excl Divs) (formerly Resources Stock Fund). Future contributions to Union Pacific Railroad's Res (Excl Divs) are not permitted. Contributions - Participants may contribute 2% to 20% effective January 1, 1998 (2% to 8% prior to January 1, 1998) of their compensation on a salary deferral basis subject to limitations specified in the Internal Revenue Code. Participants may also contribute 1% to 20% of their compensation on an after-tax basis. Combined after-tax and pre-tax contributions may not exceed 20% of compensation. The Company does not contribute to the Plan. Participant Accounts - Each participant account is credited with the participant's contributions and an allocation of the Plan's earnings. Allocations are based on participant account balances and the funds in which the participant has elected to invest his/her accounts. Vesting - Participants are at all times 100% vested in the value of their account. Investment Options - Plan participants may direct their contributions in various proportions to any of the eight available investment funds identified below: Union Pacific Railroad Stock Fund - This fund is administered as a separate account by Vanguard Fiduciary Trust Company and invests primarily in the common stock of Union Pacific Corporation. It also maintains a small cash position invested in Vanguard Money Market Reserves, to facilitate transactions. The stock fund is divided into fund shares, rather than shares of Corporation common stock.

5 Vanguard Wellington Fund - This fund consists of investment in the Vanguard Wellington Mutual Fund which is comprised of common stocks and fixed income securities. Vanguard 500 Index Fund - This fund consists of investment in the Vanguard 500 Index Portfolio Mutual Fund, a diversified open-end investment company, or mutual fund, and comprises the 500, Growth, Value, Extended Market, Small Capitalization Stock and Total Stock Market Portfolios. Vanguard Retirement Savings Trust - This fund consists of investment in the Vanguard Retirement Savings Trust, a collective investment of assets of tax-qualified pension and profit sharing plan trusts primarily in a pool of investment contracts that are issued by insurance companies and commercial banks. Vanguard U.S. Growth Fund - This fund consists of investment in the Vanguard U.S. Growth Mutual Fund. The prospectus for the Vanguard U.S. Growth Fund indicates that it is comprised of established U.S. growth stocks. Vanguard International Growth Fund - This fund consists of investment in the Vanguard International Growth Portfolio Mutual Fund. The prospectus for the Vanguard International Growth Fund indicates that it is comprised of foreign common stocks with high growth potential. Vanguard Total Bond Market Index Fund - This fund consists of investment in the Vanguard Total Bond Market Mutual Fund which is designed to closely track the investment performance of the Lehman Brothers Aggregate Bond Index. Vanguard Prime Money Market Fund - This fund consists of investment in the Vanguard Money Market Reserves - Prime Portfolio which is a diversified money market investment fund invested and reinvested in high quality certificates of deposit, bankers' acceptances, commercial paper, U.S. Government Securities and other short-term obligations with the objective of preserving principal while providing income. Payment of Benefits - Distribution of benefits shall be in a lump sum as soon as possible following the participant's termination of employment, subject to certain consent requirements for participants whose accounts exceed a statutory cash-out threshold. If a participant, whose account exceeds the threshold does not consent to payment at termination, the account will be paid on the earliest of the participant's request for payment, the participant's death, or the participant's reaching age 70-1/2. Pay-out is mandatory for a participant who has reached age 70-1/2 but has not terminated employment. Plan Administration - The Plan is administered by the Senior Vice President, Human Resources of the Union Pacific Corporation. All expenses incurred in the administration of the Plan are paid by the Company. 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Accounting - The accounts of the Plan have been prepared in accordance with generally accepted accounting principles. The financial statements were prepared in accordance with the financial reporting requirements of ERISA as permitted by the Securities and Exchange Commission's amendments to Form 11-K adopted during 1990. Use of Estimates - The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities 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.

6 Investment Valuation and Income Recognition - Investments in the Union Pacific Railroad Stock Fund, Union Pacific Railroad's Res (Excl Divs) (formerly Resources Stock Fund), Vanguard Wellington Fund, Vanguard 500 Index Fund, Vanguard Prime Money Market Fund, Vanguard U.S. Growth Fund, Vanguard International Growth Fund, and the Vanguard Total Bond Market Index Fund are valued at fair value as determined by quoted market prices. The investments in the Vanguard Retirement Savings Trust are valued at fair value as determined by Vanguard Fiduciary Trust Company. Dividend income is recorded as of the ex-dividend date. Security transactions are recorded as of the trade date. Payment of Benefits - Benefits are recorded when paid. Reclassifications - Certain 1997 amounts have been reclassified to conform to the 1998 financial statement presentation. 3. INVESTMENTS The following table presents the fair value of investments. Investments that represent 5% or more of the Plan's net assets at December 31, 1998 are separately identified. December 31, 1998 December 31, 1997 ------------------- --------------------- Number Fair Number Fair of Units Value of Units Value Investments at Fair Value as Determined by Quoted Market Price: Union Pacific Railroad Stock Fund 4,376,670 $ 32,343,591 1,829,943 $ 18,738,611 Vanguard Wellington Fund 1,896,159 55,652,276 1,161,554 34,207,780 Vanguard 500 Index Fund 976,843 111,311,286 656,404 59,122,300 Vanguard U.S. Growth Fund 1,799,920 67,479,020 354,210 10,165,824 Vanguard Prime Money Market Fund 21,767,120 21,767,120 750,026 750,026 Other - 23,170,580 - 11,006,080 American Express Trust US Government Securities Fund II - - 22,822,636 22,822,636 IDS Selective Fund - - 470,303 4,317,385 IDS Mutual Fund - - 639,185 8,774,734 IDS International Fund - - 405,240 4,129,805 IDS Stock Fund - - 630,592 15,377,612 IDS New Dimensions Fund - - 1,256,348 29,978,984 ------------ ------------ 311,723,873 219,391,777 Investments at Estimated Fair Value: Vanguard Retirement Savings Trust 13,667,569 13,667,569 9,021,892 9,021,892 ------------ ------------ Total Investments at Fair Value $325,391,442 $228,413,669 ============ ============

7 During 1998 and 1997, the Plan's investments (including investments bought, sold, and held during the year) appreciated in value by $27,051,046 and $15,163,982, respectively, as follows: Year Ended December 31, -------------------------- Net Change in Fair Value 1998 1997 Investments at Fair Value as Determined by Quoted Market Price: Union Pacific Railroad Stock Fund $ (5,472,307) $ 472,292 Union Pacific Railroad's Res (Excl Divs) (2,101,340) (834,278) Mutual Funds 34,624,693 15,525,968 ------------ ----------- Net change in fair value $ 27,051,046 $15,163,982 ============ =========== 4. PLAN AMENDMENTS Effective December 31, 1997, the Plan was amended to merge the Southern Pacific Savings Plan for the Brotherhood of Locomotive Engineers, United Transportation Union and American Train Dispatchers Department (BLE) into the Plan. (See Notes 9 and 10) 5. TAX STATUS The Plan obtained a tax determination letter dated July 27, 1995, in which the Internal Revenue Service stated that the Plan, as then designed, was in compliance with the applicable requirements of the Internal Revenue Code (the Code). The Plan has been amended since receiving the determination letter. However, Plan management believes that the Plan currently is being operated in compliance with the applicable requirements of the Internal Revenue Code. With respect to the operation of the Plan, Plan management is aware of certain operational defects which could adversely affect the tax-exempt status of the Plan. These operational defects will be corrected through the use of the Voluntary Compliance Resolution (VCR) program. Submission to the VCR program was made on April 2, 1998 and a compliance statement was received on September 15, 1998. An additional VCR submission was made for the Plan on October 2, 1998. The latter submission is still pending. Therefore, no provision for income taxes has been included in the Plan's financial statements. 6. PLAN TERMINATION Although it has not expressed any intent to do so, the Company has the right under the Plan, at any time, to terminate the Plan subject to the provisions of ERISA. Regardless of such actions, the principal and income of the Plan remains for the exclusive benefit of the Plan's participants and beneficiaries. The Company may direct the Trustee either to distribute the Plan's assets to the participants, or to continue the Trust and distribute benefits as though the Plan had not been terminated.

8 7. FUND INFORMATION Investment income, contributions and distributions to participants by fund are as follows for the years ended December 31, 1998 and 1997: Year Ended December 31, --------------------------- 1998 1997 Investment Income: Union Pacific Railroad Stock Fund $(5,062,141) $ 953,676 Union Pacific Railroad's Res (Excl Divs) (2,072,801) (809,327) Vanguard Wellington Fund 5,416,290 5,724,612 Vanguard 500 Index Fund 22,880,452 12,685,750 Vanguard Retirement Savings Trust 637,025 485,016 Vanguard U.S. Growth Fund 16,649,054 1,580,094 Vanguard International Growth Fund 1,668,012 85,261 Vanguard Total Bond Market Index Fund 481,989 81,767 Vanguard Prime Money Market Fund 1,064,004 11,629 ----------- ----------- $41,661,884 $20,798,478 =========== =========== Contributions: Union Pacific Railroad Stock Fund $ 9,059,655 $ 5,760,739 Vanguard Wellington Fund 12,701,892 7,080,611 Vanguard 500 Index Fund 21,891,411 10,984,728 Vanguard Retirement Savings Trust 3,579,202 2,027,165 Vanguard U.S. Growth Fund 11,874,516 3,584,223 Vanguard International Growth Fund 3,972,815 2,328,546 Vanguard Total Bond Market Index Fund 1,768,448 523,020 Vanguard Prime Money Market Fund 2,955,975 71,394 ----------- ----------- $67,803,914 $32,360,426 =========== =========== Distributions to participants: Union Pacific Railroad Stock Fund $ 804,843 $ 488,636 Union Pacific Railroad's Res (Excl Divs) 83,683 112,200 Vanguard Wellington Fund 1,569,293 712,206 Vanguard 500 Index Fund 2,619,502 943,177 Vanguard Retirement Savings Trust 437,012 327,250 Vanguard U.S. Growth Fund 1,663,102 143,216 Vanguard International Growth Fund 299,711 108,825 Vanguard Total Bond Market Index Fund 452,131 10,805 Vanguard Prime Money Market Fund 1,887,158 19,748 ----------- ----------- $ 9,816,435 $ 2,866,063 =========== =========== 8. RELATED PARTY TRANSACTIONS Plan investments include the Union Pacific Railroad Stock Fund which is invested primarily in the common stock of Union Pacific Corporation. Union Pacific Corporation is the holding company of the Plan sponsor and, therefore, these transactions qualify as party-in-interest transactions.

9 The Plan also invests in various funds managed by Vanguard Fiduciary Trust Company. Vanguard Fiduciary Trust Company is the trustee as defined by the Plan and, therefore, the related transactions qualify as party-in-interest transactions. 9. PLAN MERGER Effective December 31, 1997, the Southern Pacific Savings Plan for the Brotherhood of Locomotive Engineers, United Transportation Union, and American Train Dispatchers Department (BLE) was terminated and merged into the Plan. As a result of this merger, effective December 31, 1997, the trustee of BLE was changed from American Express to Vanguard Fiduciary Trust Company (Vanguard). The assets and obligations at American Express were transferred to Vanguard at the end of January 1998. Through a formal trust agreement between American Express and Vanguard, for the month of January 1998 American Express was a subtrustee of Vanguard as it relates to the BLE. The name of the Plans, as merged, is Union Pacific Agreement Employee 401(k) Retirement Thrift Plan. 10. RESTATEMENT Subsequent to the issuance of the Plan's 1998 financial statements, the Plan's management determined that the transfer of assets from the BLE should have been recognized in the Plan's financial statements as of December 31, 1997 when the BLE was merged into the Plan, rather than in 1998. As a result, the 1998 and 1997 financial statements have been restated from amounts previously reported to appropriately reflect the transfer of assets from the BLE in 1997. A summary of the significant effects of the restatement is as follows: 1998 1997 - ------------------------------------------------------------------------------- As Previously As As Previously As Reported Restated Reported Restated Statements of Net Assets Available for Benefits Investments at fair value $325,391,442 $325,391,442 $143,012,513 $228,413,669 Statements of Changes in Net Assets Available for Benefits Net appreciation in fair value of investments $ 27,018,608 $ 27,051,046 $ 15,163,982 $ 15,163,982 Net increase in net assets available for benefits 185,050,519 99,649,363 50,292,841 135,693,997 Net assets available for benefits: Beginning of year 143,012,513 228,413,669 92,719,672 92,719,672 End of year 328,063,032 328,063,032 143,012,513 228,413,669

10 UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN Item 27a - SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES DECEMBER 31, 1998 - ------------------------------------------------------------------------------- Column B Column C Column D Column E Description of Investment, Identity of Issue, Including Collateral, Rate Borrower, Lessor of Interest, Maturity Date, Current or Similar Party Par or Maturity Value Cost Value Union Pacific Railroad Stock Fund * 4,376,670 units $ 34,235,078 $ 32,343,591 Union Pacific Railroad's Res (Excl Divs) * 370,261 units 3,171,592 1,203,349 Vanguard Wellington Fund * 1,896,159 units 51,691,044 55,652,276 Vanguard 500 Index Fund * 976,843 units 74,088,754 111,311,286 Vanguard Retirement Savings Trust * 13,667,569 units 13,667,569 13,667,569 Vanguard U.S. Growth Fund * 1,799,920 units 54,674,808 67,479,020 Vanguard International Growth Fund * 731,588 units 12,481,587 13,731,914 Vanguard Total Bond Market Index Fund * 801,881 units 8,146,075 8,235,317 Vanguard Prime Money Market Fund * 21,767,120 units 21,767,120 21,767,120 ------------ ------------ $273,923,627 $325,391,442 ============ ============ * Represents a party-in-interest

11 UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN Item 27a - SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES DECEMBER 31, 1997 (RESTATED) - ------------------------------------------------------------------------------- Column B Column C Column D Column E Description of Investment, Identity of Issue, Including Collateral, Rate Borrower, Lessor of Interest, Maturity Date, Current or Similar Party Par or Maturity Value Cost Value Union Pacific Railroad Stock Fund * 1,829,943 units $ 15,121,620 $ 18,738,611 Union Pacific Railroad's Resources Stock Fund 421,515 units 3,605,095 3,667,175 Vanguard Wellington Fund * 1,161,554 units 28,676,363 34,207,780 Vanguard Index Trust - 500 Portfolio Fund * 656,404 units 39,775,280 59,122,300 Vanguard Retirement Savings Trust (formerly Vanguard Investment Contract Trust Fund) * 9,021,892 units 9,021,892 9,021,892 Vanguard U.S. Growth Fund * 354,210 units 8,889,259 10,165,824 Vanguard International Growth Portfolio Fund * 362,128 units 5,933,951 5,935,286 Vanguard Bond Index Fund * 139,110 units 1,374,228 1,403,619 Vanguard Money Market Reserve - Prime Portfolio * 750,026 units 750,026 750,026 American Express Trust US Government Securities Fund II * 22,822,636 units 22,822,636 22,822,636 IDS Selective Fund * 470,303 units 4,273,335 4,317,385 IDS Mutual Fund * 639,185 units 8,539,564 8,774,734 IDS International Fund * 405,240 units 4,221,051 4,129,805 IDS Stock Fund * 630,592 units 13,795,065 15,377,612 IDS New Dimensions Fund * 1,256,348 units 23,635,377 29,978,984 ------------ ------------ $190,434,742 $228,413,669 ============ ============ * Represents a party-in-interest

12 UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN Item 27d - SCHEDULE OF REPORTABLE TRANSACTIONS YEAR ENDED DECEMBER 31, 1998 - ----------------------------------------------------------------------------------- Single Transactions Involving an Amount in Excess of 5% of the Current Value of Plan Assets: Column A Column B Column C Column D Column E Column F Column G Current Value of Asset on Identity of Purchase Selling Cost of Transaction Net Gain Party Involved Description of Asset Price Price Asset Date or (Loss) Vanguard Fiduciary Trust Company * Union Pacific Railroad Stock Fund $24,790,547 $ - $ - $24,790,547 $ - Vanguard Fiduciary Trust Company * Vanguard Wellington Fund $30,914,196 $ - $ - $30,914,196 $ - Vanguard Fiduciary Trust Company * Vanguard Wellington Fund $ - $ 8,864,749 $ 7,938,234 $ 8,864,749 $ 926,515 Vanguard Fiduciary Trust Company * Vanguard 500 Index Funnd $46,806,858 $ - $ - $46,806,858 $ - Vanguard Fiduciary Trust Company * Vanguard 500 Index Fund $ - $15,858,772 $12,646,589 $15,858,772 $3,212,183 Vanguard Fiduciary Trust Company * Vanguard Retirement Savings Trust $10,263,183 $ - $ - $10,263,183 $ - Vanguard Fiduciary Trust Company * Vanguard U.S. Growth Fund $55,633,912 $ - $ - $55,633,912 $ - Vanguard Fiduciary Trust Company * Vanguard U.S. Growth Fund $ - $10,809,063 $ 9,875,054 $10,809,063 $ 934,009 Vanguard Fiduciary Trust Company * Vanguard Total Bond Market Index $10,998,862 $ - $ - $10,998,862 $ - Vanguard Fiduciary Trust Company * Vanguard Prime Money Market $34,855,545 $ - $ - $34,855,545 $ - Vanguard Fiduciary Trust Company * Vanguard Prime Money Market $ - $13,839,977 $13,839,977 $13,839,977 $ - Series of Transactions, When Aggregated, Involving an Amount in Excess of 5% of the Current Value of Plan Assets: Column A Column B Column C Column D Column E Column F Column G Total Total Dollar Dollar Identity of Number of Number Value of Value of Net Gain Party Involved Description of Asset Purchases of Sales Purchases Sales or (Loss) Vanguard Fiduciary Trust Company * Union Pacific Railroad Stock Fund 248 242 $24,827,491 $ 5,749,063 $ 34,403 Vanguard Fiduciary Trust Company * Vanguard Wellington Fund 210 248 $31,039,473 $ 8,990,025 $ 958,211 Vanguard Fiduciary Trust Company * Vanguard 500 Index Fund 242 250 $47,020,419 $16,072,334 $3,301,966 Vanguard Fiduciary Trust Company * Vanguard Retirement Savings Trust 251 239 $10,285,509 $ 5,639,836 $ - Vanguard Fiduciary Trust Company * Vanguard U.S. Growth Fund 247 247 $55,685,493 $10,860,643 $ 948,968 Vanguard Fiduciary Trust Company * Vanguard International Growth Fund 178 246 $ 9,912,309 $ 3,515,414 $ 147,928 Vanguard Fiduciary Trust Company * Vanguard Prime Money Market 240 227 $34,891,713 $13,876,145 $ - Vanguard Fiduciary Trust Company * Vanguard Total Bond Market 237 217 $11,025,677 $ 4,261,325 $ 7,412 * Represents a party-in-interest

13 UNION PACIFIC AGREEMENT EMPLOYEE 401(k) RETIREMENT THRIFT PLAN Item 27d - SCHEDULE OF REPORTABLE TRANSACTIONS YEAR ENDED DECEMBER 31, 1997 - ------------------------------------------------------------------------------- Single Transactions Involving an Amount in Excess of 5% of the Current Value of Plan Assets: Column A Column B Column C Column D Column E Column F Column G Current Value of Asset on Identity of Purchase Selling Cost of Transaction Net Gain Party Involved Description of Asset Price Price Asset Date or (Loss) Vanguard Fiduciary Trust Company * Union Pacific Common Stock Fund $ 8,845,212 $ - $ - $ 8,845,212 $ - Vanguard Fiduciary Trust Company * Union Pacific Common Stock Fund $ - $ 4,931,685 $ 4,119,849 $ 4,931,685 $ 811,836 Vanguard Fiduciary Trust Company * Vanguard Wellington Fund $11,645,691 $ - $ - $11,645,691 $ - Vanguard Fiduciary Vanguard Index Trust - 500 Trust Company * Portfolio Fund $17,422,445 $ - $ - $17,422,445 $ - Vanguard Fiduciary Vanguard Retirement Savings Trust Trust Company * (formerly Vanguard Investment Contract Trust Fund) $ 5,947,342 $ - $ - $ 5,947,342 $ - Vanguard Fiduciary Trust Compaay * Vanguard U.S. Growth Fund $ 6,128,644 $ - $ - $ 6,128,644 $ - Series of Transactions, When Aggregated, Involving an Amount in Excess of 5% of the Current Value of Plan Assets: Column A Column B Column C Column D Column E Column F Column G Total Total Dollar Dollar Identity of Number of Number Value of Value of Net Gain Party Involved Description of Asset Purchases of Sales Purchases Sales or (Loss) Vanguard Fiduciary Trust Company * Union Pacific Common Stock Fund 201 210 $ 8,926,045 $ 5,012,519 $ 837,458 Vanguard Fiduciary Trust Company * Vanguard Wellington Fund 179 215 $11,771,097 $ 2,587,890 $ 384,656 Vanguard Fiduciary Vanguard Index Trust - 500 Trust Company * Portfolio Fund 238 221 $17,570,311 $ 4,552,860 $1,049,855 Vanguard Fiduciary Vanguard Retirement Savings Trust Trust Company * (formerly Vanguard Investment Contract Trust Fund) 250 242 $ 5,984,915 $ 3,977,747 $ - Vanguard Fiduciary Trust Company * Vanguard U.S. Growth Fund 214 191 $ 6,147,633 $ 1,984,172 $ 199,019 * Represents a party-in-interest