For purposes of this report, unless the context otherwise requires, all references herein to "UPC", "Corporation", "we", "us", and "our" shall mean Union Pacific Corporation and its subsidiaries, including Union Pacific Railroad Company, which we separately refer to as "UPRR" or the "Railroad".

The following discussion should be read in conjunction with the Condensed Consolidated Financial Statements and applicable notes to the Condensed Consolidated Financial Statements, Item 1, and other information included in this report. Our Condensed Consolidated Financial Statements are unaudited and reflect all adjustments (consisting only of normal and recurring adjustments) that are, in the opinion of management, necessary for their fair presentation in conformity with accounting principles generally accepted in the United States of America (GAAP).

The Railroad, along with its subsidiaries and rail affiliates, is our one reportable business segment. Although revenue is analyzed by commodity, we analyze the net financial results of the Railroad as one segment due to the integrated nature of the rail network.

Available Information

Our Internet website is www.up.com. We make available free of charge on our website (under the "Investors" caption link) our Annual Reports on Form 10-K; our Quarterly Reports on Form 10-Q; our current reports on Form 8-K; our proxy statements; Forms 3, 4, and 5, filed on behalf of directors and executive officers; and amendments to such reports filed or furnished pursuant to the Securities Exchange Act of 1934, as amended (the Exchange Act), as soon as reasonably practicable after such material is electronically filed with, or furnished to, the Securities and Exchange Commission (SEC). We also make available on our website previously filed SEC reports and exhibits via a link to EDGAR on the SEC's Internet site at www.sec.gov. Additionally, our corporate governance materials, including By-Laws, Board Committee charters, governance guidelines and policies, and codes of conduct and ethics for directors, officers, and employees are available on our website. From time to time, the corporate governance materials on our website may be updated as necessary to comply with rules issued by the SEC and the New York Stock Exchange or as desirable to promote the effective and efficient governance of our company. Any security holder wishing to receive, without charge, a copy of any of our SEC filings or corporate governance materials should send a written request to:
Secretary, Union Pacific Corporation, 1400 Douglas Street, Omaha, NE 68179.

References to our website address in this report, including references in Management's Discussion and Analysis of Financial Condition and Results of Operations, Item 2, are provided as a convenience and do not constitute, and should not be deemed, an incorporation by reference of the information contained on, or available through, the website. Therefore, such information should not be considered part of this report.

Critical Accounting Policies and Estimates

We base our discussion and analysis of our financial condition and results of operations upon our Condensed Consolidated Financial Statements. The preparation of these financial statements requires estimation and judgment that affect the reported amounts of revenues, expenses, assets, and liabilities. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. If these estimates differ materially from actual results, the impact on the Condensed Consolidated Financial Statements may

be material. Our critical accounting policies are available in Item 7 of our 2007 Annual Report on Form 10-K. There have not been any significant changes with respect to these policies during the first six months of 2008.

RESULTS OF OPERATIONS

Quarterly Summary

On May 28, 2008, we completed a two-for-one stock split, effected in the form of a 100% stock dividend. The stock split entitled all shareholders of record at the close of business on May 12, 2008, to receive one additional share of our common stock, par value $2.50 per share, for each share of common stock held on that date.

We reported earnings of $1.02 per diluted share on net income of $531 million in the second quarter of 2008 compared to earnings of $0.82 per diluted share on net income of $446 million for the second quarter of 2007. Year-to-date 2008 net income was $974 million versus $832 million for the same period in 2007. Yield increases, network management initiatives, improved productivity, and reduced workforce levels more than offset cost increases due to higher fuel prices, inflation, and weather-related expenses. In addition, volume levels declined due to continued softness in some market sectors and the impact of flooding in the Midwest on network operations.

In mid-June of this year, record flooding occurred in the Midwest, causing significant damage to our rail network and damaging numerous sections of main line track that were intermittently out of service. We issued an embargo for traffic moving across certain parts of our east-west main line in Iowa, which was in effect for approximately one week. Normal operations resumed in the latter part of June. The network outages and disruptions resulted in lost revenue and higher operating costs, reducing second quarter earnings by an estimated $0.05 per diluted share.

Operationally, we improved our network fluidity despite the significant disruptions caused by Midwest flooding. As reported to the Association of American Railroads (AAR), average train speed and terminal dwell time improved 6% and 1%, respectively, during the second quarter of 2008 compared to 2007. Terminal processing initiatives and improved asset utilization, combined with reduced volume levels, drove the improvement.

Operating Revenues



                             Three Months Ended                Six Months Ended
                                       June 30,        %               June 30,        %
   Millions of Dollars        2008         2007   Change         2008      2007   Change
   Freight revenues         $4,349       $3,853       13 %     $8,408    $7,508       12 %
   Other revenues              219          193       13          430       387       11
   Total                    $4,568       $4,046       13 %     $8,838    $7,895       12 %

The primary drivers of freight revenues are volume (carloads) and average revenue per car (ARC). ARC varies with changes in price, commodity mix, and fuel surcharges. Other revenues consist primarily of revenues earned by our subsidiaries, revenues from our commuter rail operations, and accessorial revenues, which we earn when customers retain equipment owned or controlled by us or when we perform additional services such as switching or storage.

We recognize freight revenues on a percentage-of-completion basis as freight moves from origin to destination. We allocate freight revenues between reporting periods based on the relative transit time in each reporting period and recognize expenses as we incur them. We recognize other revenues as we perform services or meet contractual obligations. We provide incentives to our customers for meeting or exceeding specified cumulative volumes or shipping to and from specific locations, which we record as a reduction to freight revenues based on the actual or projected future shipments.

Revenue from five of the six commodity groups increased during the second quarter and year-to-date periods of 2008, with double-digit growth in revenue from agricultural, energy, and chemicals shipments. Revenue generated from automotive shipments declined versus 2007. ARC increased during both periods compared to 2007, driven by greater fuel cost recoveries and core pricing improvement. Fuel cost recoveries include fuel surcharge revenue and the impact of resetting the base fuel price for certain traffic, as described below in more detail. Volume declined in both periods compared to 2007 as fewer automotive, intermodal, and industrial products shipments more than offset growth of agricultural, energy, and chemicals shipments.

Our fuel surcharge programs (excluding index-based contract escalators that contain some provision for fuel) generated $585 million and $1.04 billion in freight revenues in the second quarter and year-to-date periods of 2008. Fuel surcharge revenue is not comparable to prior periods due to the implementation of new mileage-based fuel surcharge programs in April 2007 for regulated traffic. Regulated traffic represents approximately 19% of our current revenue base. We also converted a portion of our non-regulated traffic to mileage-based fuel surcharge programs. Additionally, we reset the base fuel price at which the new mileage-based fuel surcharges take effect. The resetting of the fuel price at which the fuel surcharge begins, in conjunction with rebasing the affected transportation rates to include a portion of what had been in the fuel surcharge, did not materially change our freight revenue, as higher base rates offset lower fuel surcharge revenue.

The following tables summarize the year-over-year changes in freight revenues, revenue carloads, and ARC by commodity type:

                            Three Months Ended                 Six Months Ended
  Freight Revenues                    June 30,        %                June 30,        %
  Millions of Dollars        2008         2007   Change          2008      2007   Change
  Agricultural             $  778       $  605       29 %      $1,534    $1,216       26 %
  Automotive                  352          387       (9 )         715       741       (4 )
  Chemicals                   654          574       14         1,257     1,118       12
  Energy                      919          761       21         1,776     1,492       19
  Industrial Products         877          805        9         1,650     1,546        7
  Intermodal                  769          721        7         1,476     1,395        6
  Total                    $4,349       $3,853       13 %      $8,408    $7,508       12 %

                            Three Months Ended                 Six Months Ended
  Revenue Carloads                    June 30,        %                June 30,        %
  Thousands                  2008         2007   Change          2008      2007   Change
  Agricultural                236          212       11 %         476       431       10 %
  Automotive                  176          221      (20 )         364       422      (14 )
  Chemicals                   241          239        1           466       463        1
  Energy                      561          551        2         1,143     1,102        4
  Industrial Products         346          349       (1 )         650       667       (3 )
  Intermodal                  811          861       (6 )       1,607     1,682       (4 )
  Total                     2,371        2,433       (3 )%      4,706     4,767       (1 )%

                             Three Months Ended                Six Months Ended
                                       June 30,        %               June 30,        %
   ARC                        2008         2007   Change         2008      2007   Change
   Agricultural             $3,301       $2,855       16 %     $3,225    $2,824       14 %
   Automotive                2,005        1,754       14        1,966     1,756       12
   Chemicals                 2,714        2,395       13        2,696     2,412       12
   Energy                    1,639        1,381       19        1,554     1,353       15
   Industrial Products       2,537        2,308       10        2,538     2,319        9
   Intermodal                  947          838       13          918       830       11
   Average                  $1,835       $1,584       16 %     $1,787    $1,575       13 %

Agricultural Products - Volume growth, price improvements and fuel surcharges generated higher agricultural freight revenue in the second quarter and six-month periods of 2008 versus 2007. Strong global demand for grain and a weak dollar drove higher shipments of wheat and food grains and corn and feed grains in both periods. Exports increased through the Gulf Coast, the Pacific Northwest, and Mexico.

Automotive - Double-digit volume declines in automotive shipments drove freight revenue lower in the second quarter and year-to-date periods of 2008 compared to 2007, partially offset by price improvements and fuel surcharges. A decline in vehicle production by the major manufacturers as a result of the soft economy and a major parts supplier strike were the primary contributors to lower volume levels. Shipments of finished vehicles decreased 25% and 19% in the second quarter and year-to-date periods of 2008 versus 2007.

Chemicals - Price improvements and fuel surcharges were primary drivers of higher revenue in the second quarter and year-to-date periods of 2008, versus the same periods in 2007, with a slight increase in volume levels contributing to the growth. New potash business acquired in June of 2007 increased fertilizer shipments, offset by lower liquid and dry chemicals shipments due to weak market conditions.

Energy - Price increases, fuel surcharges, and higher volume produced revenue growth in the second quarter and year-to-date periods in 2008 versus 2007. Shipments from the Southern Powder River Basin of Wyoming were up 4% and 5% in the second quarter and year-to-date periods of 2008 compared to 2007, despite May mine flooding and the network interruptions caused by the Midwest flood. Conversely, shipments from the Colorado and Utah mines were down 4% and 1% for the second quarter and year-to-date periods of 2008, versus 2007, due to lower mine production.

Industrial Products - Price improvements and fuel surcharges contributed to higher freight revenue in the second quarter and year-to-date periods of 2008 compared to 2007, partially offset by lower volume levels. Continued softening of the housing market and weak market conditions resulted in lower lumber shipments in the second quarter and six-month periods of 2008. In addition, cement shipments declined in both periods due to a weak overall residential construction market, and extended winter conditions in the Midwest and Texas, which delayed construction projects. Conversely, steel shipments increased in both periods compared to 2007 as the weak dollar has adversely impacted steel imports, creating a strong domestic market.

Intermodal - Price increases and fuel surcharges generated the revenue improvement in the second quarter and year-to-date periods of 2008, partially offset by lower volume levels. International traffic declined in both periods of 2008 versus 2007, reflecting a general softening of imports from China. Domestic traffic also declined in the second quarter and year-to-date periods of 2008 due to the loss of a contract and lower volumes from less-than-truckload shippers. The flood-related embargo also hindered intermodal volume levels in both periods.

Mexico Business - The results for each commodity group include shipments to and from Mexico. Revenue from Mexico business increased 16% to $417 million in the second quarter and 14% to $806 in the year-to-date period of 2008 compared to 2007. Price improvements and fuel surcharges led to the revenue growth during the period.

Operating Expenses



                                              Three Months Ended                 Six Months Ended
                                                        June 30,        %                June 30,        %
Millions of Dollars                            2008         2007   Change          2008      2007   Change
Compensation and benefits                    $1,101       $1,145       (4 )%     $2,233    $2,310       (3 )%
Fuel                                          1,159          753       54         2,116     1,415       50
Purchased services and materials                494          478        3           963       921        5
Depreciation                                    346          327        6           686       652        5
Equipment and other rents                       338          354       (5 )         680       693       (2 )
Other                                           199          202       (1 )         441       398       11
Total                                        $3,637       $3,259       12 %      $7,119    $6,389       11 %

Operating expenses increased $378 million and $730 million in the second quarter and six-month periods of 2008 versus the comparable periods in 2007. Fuel price per gallon rose 64% and 55% during the second quarter and year-to-date periods, increasing operating expenses by $436 and $735 million, compared to 2007. Wage, benefit, and materials inflation, higher depreciation expense, and costs associated with the January Cascade mudslide and Midwest flooding also increased expenses in both periods. Cost savings from productivity improvements, better resource utilization, and lower volume-related costs in both periods helped offset these increases.

Compensation and Benefits - Compensation and benefits include wages, payroll taxes, health and welfare costs, pension costs, other postretirement benefits, and incentive costs. Productivity initiatives in all areas, combined with lower volume and training, led to a 4% decline in our workforce for both the second quarter and six-month periods of 2008, saving $53 million and $103 million, respectively, compared to 2007. Conversely, general wage and benefit inflation increased expenses in the second quarter and year-to-date periods, reflecting higher salaries and wages.

Fuel - Fuel includes locomotive fuel and gasoline for highway and non-highway vehicles and heavy equipment. Diesel fuel prices, which averaged $3.60 per gallon (including taxes and transportation costs) in the second quarter of 2008 compared to $2.20 per gallon in the same period in 2007, increased expenses by $436 million. A 5% improvement in our fuel consumption rate resulted in $34 million of cost savings due to the use of newer, more fuel efficient locomotives; our fuel conservation programs; and an increase in average train size. Volume, as measured by gross ton-miles, decreased 1% in the second quarter, lowering expenses by $9 million compared to 2007. Year-to-date, diesel fuel prices averaged $3.21 per gallon (including taxes and transportation costs) compared to $2.07 per gallon in the same period in 2007, increasing expenses by $735 million. A 3% improvement in our fuel consumption rate and a slight decrease in gross-ton-miles reduced expenses by $43 million and $4 million, compared to 2007.

Purchased Services and Materials - Purchased services and materials expense includes the costs of services purchased from outside contractors; materials used to maintain the Railroad's lines, structures, and equipment; costs of operating facilities jointly used by UPRR and other railroads; transportation and lodging for train crew employees; trucking and contracting costs for intermodal containers; leased automobile maintenance expenses; and tools and supplies. Higher contract costs (including restoration costs related to the January Cascade mudslide and Midwest flooding) increased expenses $22 million and $33 million in the second quarter and year-to-date periods. In addition, flood-related network disruptions increased lodging costs and crew transportation costs in both periods. Higher gas prices also contributed to increased crew transportation costs. Conversely, less materials used for locomotive maintenance partially offset these increases.

Depreciation - The majority of depreciation relates to track structure, including rail, ties, and other track material. A higher depreciable asset base, reflecting higher capital spending in recent years, increased depreciation expense in the second quarter and year-to-date periods of 2008.

Equipment and Other Rents - Equipment and other rents expense primarily includes rental expense that the Railroad pays for freight cars owned by other railroads or private companies; freight car, intermodal, and locomotive leases; other specialty equipment leases; and office and other rentals. Fewer shipments of finished vehicles and industrial products and improved cycle times, which reflect operational improvement and better asset utilization, reduced our short term freight car rental expense by $14 million and $20 million in the second quarter and year-to-date periods of 2008 compared to 2007. In addition, lower lease expense for freight cars, intermodal containers, and fleet vehicles and equipment decreased costs in both periods.

Other - Other costs include personal injury costs, freight and property damage, insurance, environmental expense, state and local taxes, utilities, telephone and cellular expenses, employee travel expense, and computer software and other general expenses. Other costs were lower in the second quarter of 2008 compared to the second quarter of 2007, primarily due to a decrease in personal injury expenses. We completed an actuarial study in the second quarter of 2008, which reduced personal injury expense by $12 million, reflecting improvements in our safety experience and lower estimated costs to resolve claims. Increased state and local taxes, utility costs, and bad debt expense mostly offset the reduction in personal injury expense. We reduced personal injury expense by $30 million in the first quarter of 2007 as a result of an actuarial study, which led to an unfavorable comparison for the six-month period ended June 30, 2008. Increased state and local taxes and higher utility costs also contributed to higher other costs year-to-date.

Non-Operating Items



                            Three Months Ended                    Six Months Ended
                                      June 30,          %                 June 30,          %
 Millions of Dollars       2008           2007     Change         2008        2007     Change
 Other income             $  19          $  36        (47 )%     $  44       $  51        (14 )%
 Interest expense          (128 )         (120 )        7         (254 )      (233 )        9
 Income taxes              (291 )         (257 )       13         (535 )      (492 )        9

Other Income - Other income decreased in the second quarter and year-to-date periods of 2008 compared to 2007 due to lower returns on cash investments reflecting lower interest rates and higher environmental expense with respect to our non-operating properties. Higher rental and licensing income in the second quarter and year-to-date periods partially offset the decreases.

Interest Expense - Interest expense increased in the second quarter and year-to-date periods of 2008 versus 2007 due to higher weighted-average debt levels. In the second quarter, the weighted-average debt level was $8.2 billion, compared to $7.1 billion in 2007. Year-to-date, the weighted-average debt level was $8.0 billion, compared to $7.0 billion in 2007. A lower effective interest rate of 6.3% in both the second quarter and year-to-date periods of 2008 compared to 6.7% in both periods of 2007 partially offset the higher weighted-average debt levels in both periods.

Income Taxes - Income taxes were higher in the second quarter and year-to-date periods of 2008 compared to 2007, due primarily to higher pre-tax income. These higher income taxes were partially offset by reductions in 2008 tax expense for benefits derived from federal tax audits and state tax law changes. Our effective tax rates for the second quarter and year-to-date periods of 2008 were 35.4% and 35.5%, compared to 36.6% and 37.2% for the corresponding periods of 2007.

OTHER OPERATING/PERFORMANCE AND FINANCIAL STATISTICS

We report key Railroad performance measures weekly to the Association of American Railroads, including carloads, average daily inventory of rail cars on our system, average train speed, and average terminal dwell time. We provide this data on our website at www.up.com/investors/reports/index.shtml.

Operating/Performance Statistics

Railroad performance measures reported to the AAR, as well as other performance
measures, are included in the table below:



                                              Three Months Ended                  Six Months Ended
                                                        June 30,                          June 30,
                                               2008         2007   Change           2008      2007   Change
Average train speed (miles per hour)           22.8         21.6        6 %         22.5      21.7        4 %
Average terminal dwell time (hours)            24.5         24.7       (1 )%        24.9      25.0       -  %
Average rail car inventory (thousand)         303.1        310.7       (2 )%       304.8     310.1       (2 )%
Gross ton-miles (billions)                    257.2        260.7       (1 )%       514.4     515.6       -  %
Revenue ton-miles (billions)                  140.9        139.2        1 %        281.6     274.3        3 %
Operating ratio                                79.6         80.5     (0.9 )pt       80.5      80.9     (0.4 )pt
Employees (average)                          48,693       50,755       (4 )%      48,882    50,764       (4 )%
Customer satisfaction index                      83           80        3 pt          82        80        2 pt

Average Train Speed - Average train speed is calculated by dividing train miles by hours operated on our main lines between terminals. Ongoing network management initiatives, productivity improvements, and lower volume levels contributed to 6% and 4% improvements in average train speed during the second quarter and six-month periods of 2008 compared to 2007, despite the network disruptions resulting from the Midwest flooding and January Cascade mudslide.

Average Terminal Dwell Time - Average terminal dwell time is the average time that a rail car spends at our terminals. Lower average terminal dwell time improves asset utilization and service. Average terminal dwell improved 1% in the second quarter and was flat year-to-date in 2008, compared to 2007. We continue management initiatives to more timely deliver rail cars to our interchange partners and customers.

Average Rail Car Inventory - Our average rail car inventory is the number of freight cars on-line throughout the system. Lower rail car inventory is desirable for network fluidity. Our rail car inventory improved 2% during both the second quarter and year-to-date periods of 2008 compared to 2007, as we continued to focus on network management initiatives.

. . .