SECURITIES AND EXCHANGE COMMISSION
                         WASHINGTON, D.C.  20549

                             SCHEDULE 14D-1
                             AMENDMENT NO. 5
   TENDER OFFER STATEMENT PURSUANT TO SECTION 14(D)(1) OF THE SECURITIES
                            EXCHANGE ACT OF 1934

                       SANTA FE PACIFIC CORPORATION
                         (NAME OF SUBJECT COMPANY)

                        UNION PACIFIC CORPORATION
                        UP ACQUISITION CORPORATION
                             (BIDDERS)

               COMMON STOCK, PAR VALUE $1.00 PER SHARE

                   (TITLE OF CLASS OF SECURITIES)

                          802183 1 03
               (CUSIP NUMBER OF CLASS OF SECURITIES)

                         RICHARD J. RESSLER
                     ASSISTANT GENERAL COUNSEL
                     UNION PACIFIC CORPORATION
                     EIGHTH AND EATON AVENUES
                   BETHLEHEM, PENNSYLVANIA  18018
                        (610) 861-3200
    (NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON AUTHORIZED TO
     RECEIVE NOTICES AND COMMUNICATIONS ON BEHALF OF BIDDERS)

                        with a copy to:

                      PAUL T. SCHNELL, ESQ.
              SKADDEN, ARPS, SLATE, MEAGHER & FLOM
                       919 THIRD AVENUE
                   NEW YORK, NEW YORK  10022
                  TELEPHONE:  (212) 735-3000
                                                                         
          Union Pacific Corporation, a Utah corporation ("Parent"),
     and UP Acquisition Corporation, a wholly-owned subsidiary of
     Parent (the "Purchaser"), hereby amend and supplement their
     Statement on Schedule 14D-1 ("Schedule 14D-1"), filed with the
     Securities and Exchange Commission (the "Commission") on November
     9, 1994, as amended by Amendment No. 1, dated November 10, 1994,
     Amendment No. 2, dated November 14, 1994,  Amendment No. 3, dated
     November 18, 1994, and Amendment No. 4, dated November 22, 1994,
     with respect to the Purchaser's offer to purchase 115,903,127
     shares of Common Stock, par value $1.00 per share (the "Shares"),
     of Santa Fe Pacific Corporation, a Delaware corporation (the
     "Company").

          Unless otherwise indicated herein, each capitalized term
     used but not defined herein shall have the meaning assigned to
     such term in Schedule 14D-1 or in the Offer to Purchase referred
     to therein.


     ITEM 3.  PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH 
              THE SUBJECT COMPANY.

          The information set forth in Item 3(b) of Schedule 14D-1 is
     hereby amended and supplemented by the following information:

          On November 22, 1994, Parent issued a press release
     announcing that Dick Davidson, President of Parent, sent a
     letter, dated November 22, 1994, to the Company; a copy of the
     press release and letter are attached hereto as Exhibit (a)(16)
     and incorporated herein by reference.

     ITEM 5.   PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF
               THE BIDDER.

          The information set forth in Item (5)(a) of Schedule 14D-1
     is hereby amended and supplemented by the following information:

          On November 22, 1994, Parent sent a letter to the
     stockholders of the Company.  A copy of the letter is attached
     hereto as Exhibit (a)(17) and incorporated herein by reference.

     ITEM 11.  MATERIAL TO BE FILED AS EXHIBITS.

          (a)(16)   Text of Press Release issued by Union Pacific
                    Corporation on November 22, 1994.

          (a)(17)   Text of Letter sent by Union Pacific Corporation
                    to the stockholders of the Company on November 22,
                    1994. 

                                 SIGNATURE

          After due inquiry and to the best of my knowledge and
     belief, I certify that the information set forth in this
     statement is true, complete and correct.

     Dated:  November 23, 1994

                                     UNION PACIFIC CORPORATION

                                     By: /s/ Gary M. Stuart           
                                        _______________________
                                        Title: Vice President and
                                                 Treasurer


                                 SIGNATURE

          After due inquiry and to the best of my knowledge and
     belief, I certify that the information set forth in this
     statement is true, complete and correct.

     Dated:  November 23, 1994

                                     UP ACQUISITION CORPORATION

                                     By: /s/ Gary M. Stuart           
                                        ___________________________
                                        Title: Vice President and
                                                 Treasurer


                               EXHIBIT INDEX

     Exhibit No.         Description

        (a)(16)          Text of Press Release issued by Union Pacific
                         Corporation on November 22, 1994.

        (a)(17)          Text of Letter sent by Union Pacific
                         Corporation to the stockholders of the
                         Company on November 22, 1994. 



          (UNION PACIFIC                NEWS RELEASE
          CORPORATION - LOGO)

                                   Contact: 610-861-3382
                                   Gary F. Schuster
                                   Vice President-Corporate Relations
                                   Martin Tower
                                   Eighth and Eaton Avenues
                                   Bethlehem, PA  18018

                    UNION PACIFIC RESPONDS TO SANTA FE

               BETHLEHEM, PA, NOVEMBER 22, 1994 -- Union Pacific
     Corporation (NYSE: UNP) today sent the following letter to Santa
     Fe Pacific Corporation (NYSE: SFX).

                                   November 22, 1994

     Mr. Robert D. Krebs
     Chairman, President and CEO
     Santa Fe Pacific Corporation
     1700 East Golf Road
     Schaumburg, IL  60173

     Dear Rob:

               Two weeks ago, we submitted our revised proposal to
     negotiate an acquisition of Santa Fe.  Our terms and structure -
     - fair price and a voting trust -- meet the criteria that you
     have set forth on a number of occasions for considering our
     proposal.  Since making our proposal, despite our repeated
     requests to begin discussions, you have refused to talk or meet
     with us.

               Today, I received your letter and a copy of your
     Schedule 14D-9 filing in which you publicly recommended that
     your stockholders not tender their shares.  The stated reasons
     for your Board's rejection of our proposal are unpersuasive and,
     we believe, misleading in many respects.  Of equal importance,
     the issues you raise are precisely the issues you should have
     been discussing with us during the last two weeks.  

               Your first objection relates to our proposed use of a
     voting trust -- notwithstanding your own previous demands that
     we propose a voting trust.  You point out the obvious fact that
     we have not yet obtained Interstate Commerce Commission approval
     to use the trust.  Yet, you fail to mention that the use of a
     trust in a situation such as ours has never been denied by the
     ICC.  We believe that ICC approval of our trust will be
     forthcoming shortly.

               You ask us to improve the financial terms of our
     proposal, yet you fail to mention that our proposal represents a
     premium to the consideration in your proposed Burlington
     Northern merger, which has been endorsed by your financial
     advisors as fair to your shareholders.  We were surprised by
     your failure in your Schedule 14D-9 to advise Santa Fe
     shareholders of the views of your financial advisors as to the
     fairness of our offer.  We believe it is highly unusual for a
     board of directors to make a recommendation without obtaining
     such advice.  If your Board did obtain such advice, it should
     have been disclosed to your shareholders.

               You claim that our proposal is too conditional yet you
     fail to mention that we advised you in writing on November 13
     that we were prepared to negotiate all contractual terms of our
     proposal, including the conditions to our tender offer.  We
     believe the condition of ICC approval of your merger with
     Burlington Northern creates considerable uncertainty for that
     transaction.  Our proposal would eliminate that risk for your
     shareholders.

               You note that our transaction is a taxable one, yet
     you fail to mention our continued willingness to discuss with
     Santa Fe our tax-free, stock-for-stock proposal.

               Finally, you ask for "clarification" of these issues. 
     Can there be any effective way of obtaining clarification other
     than for you to meet with us?  You say your recommendation is
     "subject to change as events unfold" that "clarify" our
     proposal, yet you have resisted obtaining such clarification.

               The process you have established of engaging in
     discussions and sharing information with Burlington Northern
     while refusing to talk or meet with us prevents us from
     competing on an equal basis.  This process cannot possibly allow
     you and your Board of Directors to fulfill your fiduciary duty
     and maximize value for your shareholders.  

               We again call on you to establish a fair process and
     meet with us.

                                  Sincerely,

                                  Dick Davidson
                                  President, 
                                  Union Pacific Corporation
                                  Chairman and CEO, 
                                  Union Pacific Railroad Company

          cc:  Board of Directors
               Santa Fe Pacific Corporation


                       [LOGO] UNION PACIFIC CORPORATION

                                        November 22, 1994

          Dear Santa Fe Pacific Stockholder:

                    On November 8, Union Pacific Corporation
          entirely revised its proposal to negotiate an acquisition
          of Santa Fe -- a proposal that we believe is superior to
          the proposed Burlington Northern merger in every way. 
          Despite this, Santa Fe's board of directors is still
          seeking your vote to approve the Burlington Northern
          merger at a Special Meeting of Stockholders now scheduled
          to be held on December 2.

                    Your vote can protect your investment and tell
          the Santa Fe board you want them to do everything
          possible to maximize the value of your shares.  Even if
          you previously voted in favor of the merger with
          Burlington Northern, it's not too late to change your
          mind.  All you need to do is vote AGAINST the Burlington
          Northern merger on the enclosed GOLD proxy card.  We urge
          you to sign, date and return the GOLD proxy card today.

                     LET'S TAKE A LOOK AT THE REAL ISSUES

          CASH:         UNION PACIFIC has commenced a cash tender
                        offer to purchase approximately 57% of all
                        shares of Santa Fe common stock at $17.50
                        per share (with remaining 43% of Santa
                        Fe's shares receiving Union Pacific common
                        stock in a second-step merger).(1)

                        BURLINGTON NORTHERN is offering Santa Fe
                        stockholders no cash.

          PREMIUM:(2)   UNION PACIFIC'S proposal of cash and Union
                        Pacific common stock represents a premium
                        to the consideration offered in the
                        Burlington Northern merger.

                        BURLINGTON NORTHERN is offering Burlington
                        Northern common stock currently valued at
                        $16.24.

          ______________________ 
          1    Based on Union Pacific's closing market price on
               November 8, 1994 (the last trading day before Union
               Pacific's proposal was publicly announced), the
               value of the consideration in the second-step merger
               would be equivalent to the tender offer price. 
               Because of fluctuations in the market value of Union
               Pacific common stock, based on Union Pacific's
               closing market price on November 22, 1994, the value
               of the consideration in the second-step merger would
               be less than the tender offer price.

          2    Based on closing market prices on November 22, 1994.


          TIMING:       UNION PACIFIC'S cash tender offer still
                        could be completed before the end of next
                        month and the second-step merger could
                        take place just a few months later.  The
                        sooner Santa Fe's board of directors
                        begins good faith negotiations with Union
                        Pacific, the sooner you could receive
                        payment for your Santa Fe shares.

                        BURLINGTON NORTHERN'S merger requires
                        prior approval of the Interstate Commerce
                        Commission, which review could take from
                        11/2 to 21/2 years.

          DIVIDENDS:(3) UNION PACIFIC'S proposal would result in a
                        dividend of $.61 for each Santa Fe share
                        that would be acquired in the second-step
                        merger.

                        BURLINGTON NORTHERN'S merger would result
                        in a dividend of $.41 for each Santa Fe
                        share.

          REDUCED
          ICC RISK:     UNION PACIFIC is setting up a Voting Trust
                        in which we would place all Santa Fe
                        shares acquired by Union Pacific --
                        whether in the cash tender offer or
                        second-step merger.  This means that under
                        our proposal Santa Fe stockholders would
                        not bear the risk of ICC approval of a
                        Union Pacific/Santa Fe combination.(4)


          ______________________  
          3    Dividend amounts shown are the indicated annual
               dividend rates on a per share equivalent basis. 
               Such rates are determined by multiplying (i) the
               current annual dividend rate on shares of common
               stock of Union Pacific or Burlington Northern, as
               the case may be, by (ii) the applicable exchange
               ratio.  Santa Fe stockholders would not receive
               dividends with respect to shares which, pursuant to
               the Union Pacific proposal, would be acquired in the
               cash tender offer.  There can be no assurance that
               Burlington Northern or Union Pacific will continue
               to pay dividends at rates currently in effect or
               will pay any dividend in the future.

          4    Union Pacific has requested the Staff of the
               Interstate Commerce Commission ("ICC") to provide an
               informal, nonbinding opinion to the effect that the
               ICC approves the use of a Voting Trust by Union
               Pacific without the imposition of any conditions
               unacceptable to Union Pacific.  Receipt of such
               opinion is a condition of Union Pacific's revised
               proposal and of the cash tender offer.  Union
               Pacific believes it will obtain such approval from
               the Staff of the ICC.  


                        BURLINGTON NORTHERN is not using a Voting
                        Trust, so Santa Fe stockholders bear the
                        entire risk of ICC approval and receive
                        nothing for their shares if ICC approval
                        is not obtained.

                    Santa Fe's board of directors could have
          welcomed Union Pacific's revised proposal and immediately
          commenced good faith negotiations in accordance with the
          terms of its agreement with Burlington Northern. 
          Instead, here's what Santa Fe's board did:

               *    REFUSED TO TALK WITH US about the terms of our
                    merger proposal and indicated no willingness to
                    commence good faith negotiations.

               *    CONTINUED TO PUSH TOWARDS A DECEMBER 2
                    STOCKHOLDERS' MEETING at which they have asked
                    Santa Fe stockholders to approve the Burlington
                    Northern merger.

               *    STOOD SILENTLY BY while Burlington Northern,
                    their so-called "friendly" merger partner,
                    tries to INTERFERE with the creation of Union
                    Pacific's Voting Trust.  This is the Voting
                    Trust that would give you the opportunity to
                    receive payment for your shares as soon as
                    possible.

          YOUR VOTE IS IMPORTANT.  MAKE IT COUNT!

                    Union Pacific's proposal and cash tender offer
          are conditional on the Burlington Northern merger not
          being approved by Santa Fe stockholders and on Santa Fe
          and Union Pacific entering into a negotiated merger
          agreement.  If Santa Fe stockholders approve the
          Burlington Northern merger, Union Pacific will withdraw
          its proposal and terminate the cash tender offer.

                    We urge you to vote AGAINST the Burlington
          Northern merger on the enclosed GOLD proxy card.  Your
          vote is important.  Please sign, date and return the GOLD
          proxy card today.

                    Thank you for your consideration and support.

                                   Sincerely,

                                   /s/ Dick Davidson
                                   _______________________________
                                   Dick Davidson
                                   President, Union Pacific Corporation 
                                   Chairman and Chief Executive Officer
                                   Union Pacific Railroad Company

          FOR ASSISTANCE IN VOTING YOUR SHARES, PLEASE CONTACT THE
          FIRM ASSISTING US IN THE SOLICITATION OF PROXIES:  MORROW
          & CO., INC., CALL TOLL FREE:  1-800-662-5200

               VOTE AGAINST THE BURLINGTON NORTHERN MERGER ON THE
          GOLD PROXY CARD.


          SUPPLEMENTAL INFORMATION

               On November 14, 1994, Santa Fe announced that it had
          postponed the special meeting of stockholders which had
          been called for the purpose of voting on a merger of Santa
          Fe with Burlington Northern.  The special meeting,
          originally scheduled for November 18, 1994, is now
          scheduled to be held on Friday, December 2, 1994 at the
          Hyatt Regency-Woodfield, 1800 East Golf Road, Schaumburg,
          Illinois, commencing at 3:00 p.m., Central time.

          VOTING TRUST - RECENT DEVELOPMENTS

               Pursuant to the proposal made by Union Pacific to
          Santa Fe on November 8, 1994, Union Pacific would place
          all shares of Santa Fe common stock acquired by Union
          Pacific (whether pursuant to the first-step cash tender
          offer or the second-step merger) into a voting trust (the
          "Voting Trust") that would be independent of Union
          Pacific.  On November 10, 1994, Union Pacific and UP
          Acquisition Corporation, a Utah corporation and a wholly
          owned subsidiary of Union Pacific, requested the Staff of
          the ICC to issue an informal, non-binding opinion that the
          use of the Voting Trust is consistent with the policies of
          the ICC against unauthorized acquisition of control of a
          regulated carrier.  On November 16, 1994, Burlington
          Northern filed a petition with the ICC to institute an
          investigation into the Voting Trust agreement.  The Staff
          of the ICC has not yet issued any opinion regarding the
          use of the Voting Trust.

          UNION PACIFIC'S TENDER OFFER -- SANTA FE'S RESPONSE

               On November 22, 1994, Santa Fe filed with the
          Securities and Exchange Commission a
          Solicitation/Recommendation Statement on Schedule 14D-9,
          in which Santa Fe stated its recommendation to its
          stockholders with respect to Union Pacific's pending cash
          tender offer for approximately 57% of Santa Fe's common
          stock at $17.50 per share.  In such Schedule 14D-9, Santa
          Fe stated the following:  "At a special meeting held on
          November 21, 1994, [Santa Fe's] Board of Directors
          unanimously determined to recommend that stockholders not
          accept [Union Pacific's tender offer] at this time.  That
          recommendation is subject to change as events unfold that
          will clarify whether a transaction with Union Pacific is
          in the stockholders' best interest."

          ______________

          Union Pacific's revised proposal is subject, among other
          things, to termination of the Burlington Northern/Santa Fe
          merger agreement in accordance with its terms, negotiation
          of a mutually satisfactory merger agreement with Santa Fe
          in accordance with the terms of Santa Fe's existing merger
          agreement with Burlington Northern and approval of the
          respective Boards of Directors of Santa Fe and Union
          Pacific.  A vote of stockholders of Santa Fe and Union
          Pacific is not required in order to consummate the second-
          step merger.  The revised Union Pacific proposal is not
          subject to approval of the Interstate Commerce Commission
          (other than as referred to in footnote 4 appearing on the
          previous page), a due diligence condition or financing. 
          The Burlington Northern/Santa Fe merger agreement is
          subject to approval of the Interstate Commerce Commission
          and the respective stockholders of Burlington Northern and
          Santa Fe.  Because of fluctuations in the market value of
          Union Pacific common stock and Burlington Northern common
          stock, there can be no assurances as to the actual value
          that Santa Fe stockholders would receive pursuant to the
          second-step merger contemplated by the revised Union
          Pacific proposal or the Santa Fe/Burlington Northern
          merger.

          This solicitation is neither an offer to sell nor a
          solicitation of offers to buy any securities which may be
          issued in any merger or similar business combination
          involving Union Pacific and Santa Fe.  The issuance of
          such securities would have to be registered under the
          Securities Act of 1933 and such securities would be
          offered only by means of a prospectus complying with the
          requirements of such Act.