Form: S-3/A Filing Date: 7/24/1998 
1717 MAIN STREET SUITE 5900 DALLAS, TX 75201-4605 

This Prospectus relates to the 6 1/4% Convertible Preferred Securities (the "Convertible Preferred Securities"), which represent undivided preferred beneficial ownership interests in the assets of Union Pacific Capital Trust, a statutory business trust formed under the laws of the State of Delaware (the "Trust" or the "Issuer"), and the shares of common stock, par value $2.50 per share (the "Company Common Stock"), of Union Pacific Corporation, a Utah corporation (the "Company"), issuable upon conversion of the Convertible Preferred Securities. The Convertible Preferred Securities were issued and sold (the "Original Offering") on April 1, 1998 ......

As used herein, (i) the "Indenture" means the Convertible Junior Subordinated Indenture, between the Company and The Bank of New York, as trustee (the "Debenture Trustee") relating to the Issuer, (ii) the "Declaration" means the Amended and Restated Declaration of Trust relating to the Issuer among the Company, as Depositor (the "Depositor"), The Bank of New York as Property Trustee (the "Property Trustee"), The Bank of New York (Delaware) as Delaware Trustee (the "Delaware Trustee"), and the individuals named as Administrative Trustees therein (the "Administrative Trustees") (collectively with the Property Trustee and the Delaware Trustee, the "Issuer Trustees") and (iii) the "Guarantee" means the Guarantee Agreement between the Company and The Bank of New York (the "Guarantee Trustee").

In the third quarter of 1997, congestion began to have a serious adverse effect on the operations and earnings of Union Pacific Railroad Company ("UPRR"), the Company's principal rail subsidiary. System congestion started in and around Houston and the coastal areas of Texas and Louisiana (the "Gulf Coast region") and spread throughout the system as UPRR shifted resources to help mitigate the problem in the Gulf Coast region. The Company reported a decline in net income from continuing operations of approximately 41%, from $733 million for 1996 to $432 million for 1997. Moreover, the

Company incurred a net loss of $152 million ($.62 per diluted share) in the fourth quarter of 1997 (which included a $40 million after tax loss recognized in connection with the Company's planned sale of Skyway Freight Systems, Inc. ("Skyway")) and a net loss of $62 million ($.25 per diluted share) and $419 million ($1.70 per diluted share) for the first and second quarters of 1998, respectively.

****Skyway Divestiture. In January 1998, the Company announced its intention to sell Skyway, a wholly-owned subsidiary engaged in contract logistics and supply chain management, by the end of the year. In connection with the planned sale, the Company recognized a $40 million after tax loss in the fourth quarter of 1997. In 1997, Skyway had revenues of $152 million and an operating net loss of $5.5 million. Press Release Contact at Skyway: Leslie Ferrera (831) 763-7251 Skyway Freight Systems, Inc. Closes Its Operations (WATSONVILLE, CA)

March 31, 2000 - Effective today, Skyway Freight Systems, Inc., an expedited transportation and third party logistics provider, has ceased its transportation operations and is in the process of transitioning its contracted logistics customers to new providers. Skyway is closed for business effective immediately, but all efforts will

be made to ensure that all shipments are delivered to customers in a secure and timely manner. ++++++++++++++++ Second quarter results included a $261 million loss from discontinued operations arising from the expected sale of Overnite Transportation Company ("Overnite"), the Company's principal trucking subsidiary. See "The Company."

+++++++++++++++++ HISTORY: Founded in 1935, Overnite became a public company in 1957 and was acquired by Union Pacific Corporation in 1986. REVENUES: The company had operating revenues in excess of $1 billion in 1999 and is the seventh largest provider of LTL services in the United States. +++++++++++++++++

This decline in earnings is primarily the result of UPRR's service and congestion problems. The Company estimates that the combined effects of lost business, higher costs associated with system congestion, and costs associated with the implementation of the service recovery plan described below, alternate transportation and customer claims had a negative effect on net income for 1997 of approximately $450 million, after tax, and a negative effect on net income for the first and second quarters of 1998 of approximately $260 million, after tax, and $434 million, after tax, respectively. Although progress has been made in improving service, UPRR expects these problems to continue to have an adverse impact on 1998 results.

While the Company believes that it will ultimately be successful in alleviating the congestion-related problems experienced by UPRR and returning the Company to profitability, there can be no assurance that the recovery will not be delayed for a substantial period, which would have a continuing adverse effect on the Company's financial results, or that additional measures will not be necessary to resolve such problems. The timing of the Company's return to profitability will be determined by how rapidly it is able to eliminate congestion and return to normal operations throughout its system. As a result of operating losses at UPRR and in order to fund its capital program, the Company has incurred substantial incremental debt since December 31, 1997, most of which has been repaid from the proceeds of the issuance of the Convertible Preferred Securities.

On March 31, 1998, the STB initiated a proceeding under its continuing oversight jurisdiction with respect to the merger of Southern Pacific Transportation Company and its affiliated railroads ("Southern Pacific") and UPRR, to consider proposals for new remedial conditions to the merger as they pertain to service in the Houston, Texas/Gulf Coast area. The proceeding was initiated in response to submissions by Texas Mexican Railway Company ("Tex Mex"), Kansas City Southern Railway Company ("KCS") and the Greater Houston Partnership ("GHP"), proposing that UPRR be directed to transfer certain lines and facilities in the Gulf Coast region to other rail carriers, that a "neutral" switching operation be established in the greater Houston area and that provisions in the STB's emergency service order that expanded Tex Mex's right to handle traffic to and from Houston be adopted permanently. The STB's decision announcing the proceeding established a procedural schedule for the submission of evidence, replies and rebuttal. Separately from this proceeding, a shortline railroad, the Arkansas, Louisiana and Mississippi Railroad ("AL&M"), has filed a request that an additional condition be imposed on the merger allowing AL&M to interchange with BNSF. [note #2 below]

The Company and certain of its officers and directors are currently defendants in two purported class action securities lawsuits. The class action suits allege, among other things, that management failed to disclose properly UPRR's service and safety problems and thereby issued materially false and misleading statements concerning the Company's acquisition of Southern Pacific's parent corporation and the safe, efficient operation of UPRR's rail network. These lawsuits were filed in late 1997 in the

Federal District Court for the Northern District of Texas and seek to recover unspecified amounts of damages. The Company believes that these claims are without merit and intends to defend them vigorously.

The Company, incorporated in Utah in 1969, operates through subsidiaries primarily in the areas of rail transportation and trucking. The Company's rail transportation operations principally consist of UPRR, which includes two major acquisitions since 1995, Southern Pacific and Chicago and North Western Railway Company and its affiliated railroads ("CNW"). The Company's trucking operations principally consist of Overnite. On May 20, the Company announced that it intends to sell its entire interest in Overnite through an initial public offering of all the common stock of Overnite Corporation, a newly formed Virginia corporation created for the purpose of indirectly holding all of the issued and outstanding capital stock of Overnite (the "Overnite IPO"). Natural Resources Divestiture. In July 1995, the Company's Board of Directors approved a formal plan to dispose of its oil, gas and mining business through an initial public offering (the "IPO") of 17% of the common stock of Union Pacific Resources Group, Inc. ("Resources"), followed by a distribution of the Company's remaining interest in Resources to the Company's stockholders on a tax-free, pro-rata basis (the "Spin-Off"). In October 1995, Resources completed the IPO, and, after the Company's receipt of a favorable Internal Revenue Service ruling as to the tax-free nature of the Spin-Off, the Company completed its divestiture of Resources in October 1996.