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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

FOR THE FISCAL YEAR ENDED DECEMBER 31, 2004

OR

FOR THE TRANSITION PERIOD FROM              TO             

COMMISSION FILE NUMBER: 1-11535

Burlington Northern Santa Fe Corporation

Exact name of registrant as specified in its charter

Securities registered pursuant to Section 12(g) of the Act:

None

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 requirement 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

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Act).    Yes  x    No  ¨

The aggregate market value of the voting stock held by non-affiliates of the registrant was approximately $12.908 billion on June 30, 2004. For purposes of this calculation only, the registrant has excluded stock beneficially owned by directors and officers. By doing so, the registrant does not admit that such persons are affiliates within the meaning of Rule 405 under the Securities Act of 1933 or for any other purpose.

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date: Common Stock, $0.01 par value, 377,927,038 shares outstanding as of February 2, 2005.

DOCUMENTS INCORPORATED BY REFERENCE

LIST HEREUNDER THE DOCUMENTS FROM WHICH PARTS THEREOF HAVE BEEN INCORPORATED BY REFERENCE AND THE PART OF THE FORM 10-K INTO WHICH SUCH INFORMATION IS INCORPORATED:

Burlington Northern Santa Fe Corporation’s definitive Proxy Statement, to be filed not

later than 120 days after the end of the fiscal year covered by this report                                              Part III

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Part 1

Items 1 and 2. Business and Properties

Burlington Northern Santa Fe Corporation (BNSF or Company) was incorporated in the State of Delaware on December 16, 1994. On September 22, 1995, the stockholders of Burlington Northern, Inc. (BNI) and Santa Fe Pacific Corporation (SFP) became the stockholders of BNSF pursuant to a business combination of the two companies.

On December 30, 1996, BNI merged with and into SFP. On December 31, 1996, The Atchison, Topeka and Santa Fe Railway Company (ATSF) merged with and into Burlington Northern Railroad Company (BNRR), and BNRR changed its name to The Burlington Northern and Santa Fe Railway Company. On January 2, 1998, SFP merged with and into The Burlington Northern and Santa Fe Railway Company. On January 20, 2005, The Burlington Northern and Santa Fe Railway Company changed its name to BNSF Railway Company (BNSF Railway).

Through its subsidiaries, BNSF is engaged primarily in the rail transportation business. At December 31, 2004, BNSF and its subsidiaries had approximately 38,000 employees. The rail operations of BNSF Railway, BNSF’s principal operating subsidiary, comprise one of the largest railroad systems in North America. BNSF Railway’s business and operations are described below.

BNSF’s Internet address is www.bnsf.com. Through this internet website (under the “Investors” link), BNSF makes available, free of charge, its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, and all amendments to those reports, as soon as reasonably practicable after these reports are electronically filed with or furnished to the Securities and Exchange Commission. The following documents are also made available on the Company’s website and a copy will be mailed, without charge, upon request to Investor Relations:

TRACK CONFIGURATION

As of December 31, 2004, BNSF Railway operates over a railroad system consisting of approximately 32,000 route miles of track (excluding second, third and fourth main tracks, yard tracks, and sidings), approximately 24,000 miles of which are owned route miles, including easements, in 28 states and two Canadian provinces. Approximately 8,000 route miles of BNSF Railway’s system consist of trackage rights that permit BNSF Railway to operate its trains with its crews over another railroad’s tracks. BNSF Railway operates over other trackage through lease or other contractual arrangements.

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As of December 31, 2004, the total BNSF Railway system, including first, second, third and fourth main tracks, yard tracks, and sidings, consists of approximately 50,000 operated miles of track, all of which are owned by or held under easement by BNSF Railway except for approximately 9,000 route miles operated under trackage rights. At December 31, 2004, approximately 26,000 miles of BNSF Railway’s track consists of 112-pound per yard or heavier rail, including approximately 19,000 track miles of 131-pound per yard or heavier rail.

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EQUIPMENT CONFIGURATION

BNSF Railway owned or had under non-cancelable leases exceeding one year the following units of railroad rolling stock and other equipment as of the dates shown below:

CAPITAL EXPENDITURES AND MAINTENANCE

CAPITAL EXPENDITURES

A breakdown of the Company’s cash capital expenditures for the three years ended December 31, 2004, is incorporated by reference from a table in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations under the headings “Liquidity and Capital Resources, Investing Activities.”

BNSF’s planned 2005 cash capital expenditures are incorporated by reference from Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations under the heading “Introduction.”

MAINTENANCE

As of December 31, 2004, General Electric Company, Alstom Transportation Inc., OmniTRAX Locomotive Services, LLC and the Electro-Motive Division of General Motors Corporation performed locomotive maintenance and overhauls for BNSF Railway at its facilities under various maintenance agreements that covered approximately 3,650 locomotives.

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The extent of the BNSF Railway’s maintenance and capacity program is outlined in the following table:

PROPERTY AND FACILITIES

BNSF Railway operates various facilities and equipment to support its transportation system, including its infrastructure and locomotives and freight cars as previously described. It also owns or leases other equipment to support rail operations, including highway trailers, containers and vehicles. Support facilities for rail operations include yards and terminals throughout its rail network, system locomotive shops to perform locomotive servicing and maintenance, a centralized network operations center for train dispatching and network operations monitoring and management in Fort Worth, Texas, regional dispatching centers, computers, telecommunications equipment, signal systems, and other support systems. Transfer facilities are maintained for rail-to-rail as well as intermodal transfer of containers, trailers and other freight traffic. These facilities include 35 major intermodal hubs located across the system. BNSF Railway’s largest intermodal facilities in terms of 2004 volume were:

BNSF Railway owns 23 automotive distribution facilities where automobiles are loaded or unloaded from multi-level rail cars and serves eight port facilities in the United States and Canada.

BNSF Railway’s largest freight car classification yards based on the average daily number of cars processed (excluding cars that do not change trains at the terminal and intermodal and coal cars) are shown below:

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As of December 31, 2004, certain BNSF Railway properties and other assets are subject to liens securing $388 million of mortgage debt. Certain locomotives and rolling stock of BNSF Railway are subject to equipment obligations and leases, as referred to in Notes 9 and 10 of the Consolidated Financial Statements.

PRODUCTIVITY

Productivity, as measured by thousand gross ton miles per employee, has risen steadily in the last three years as shown in the table below.

Volumes as measured by gross ton miles increased 11 percent in 2004 over 2003 and 4 percent in 2003 over 2002. In turn the increase in volumes has led the Company to increase employee headcounts. A discussion of Employees and Labor Relations is incorporated by reference from Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, under the heading “Other Matters; Employee and Labor Relations.”

BUSINESS MIX

In serving the Midwest, Pacific Northwest and the Western, Southwestern, and Southeastern regions and ports of the country, BNSF Railway transports, through one operating transportation services segment, a range of products and commodities derived from manufacturing, agricultural, and natural resource industries. Approximately 70 percent of the freight revenue originated by the Company is covered by contractual agreements of varying duration, while the balance is subject to common carrier, published prices or quotations offered by the Company. BNSF’s financial performance is influenced by, among other things, general and industry economic conditions at the international, national, and regional levels. The map below illustrates the Company’s primary routes, including trackage rights, which allow BNSF Railway to access major cities and ports in the western United States as well as Canadian and Mexican traffic. In addition to major cities and ports, BNSF Railway efficiently serves many smaller markets by working closely with approximately 200 shortline partners. BNSF has also entered into marketing agreements with Canadian National Railway Company and Kansas City Southern Railway Company expanding the marketing reach for the organizations.

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CONSUMER PRODUCTS:

The Consumer Products’ freight business provided approximately 40 percent of freight revenues in 2004 and consisted of the following business sectors:

INDUSTRIAL PRODUCTS:

Industrial Products’ freight business provided approximately 23 percent of BNSF’s freight revenues in 2004 and consisted of the following four business areas:

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COAL:

In 2004, the transportation of coal contributed about 21 percent of freight revenues. BNSF Railway is the largest transporter of low-sulfur coal originating from the Powder River Basin of Wyoming and Montana, which accounted for approximately 90 percent of all BNSF Railway’s coal tons during the three years ending December 31, 2004. These coal shipments were destined for coal-fired electric generating stations located primarily in the North Central, South Central, Southeast and Mountain regions of the United States. BNSF Railway also transports coal from the Powder River Basin to markets in Canada and the eastern United States. Demand for Powder River Basin coal has increased substantially over the past 20 years due to environmental compliance issues, abundant reserves, relatively inexpensive mine production and competitive delivered cost to power plants.

Other BNSF coal shipments originate principally in Colorado, Illinois, New Mexico and North Dakota. These shipments move to electrical generating stations and industrial plants in the Mountain and North Central regions of the United States and to Mexico.

The Company has received a Civil Investigative Demand from the Antitrust Division of the Department of Justice requesting information concerning the Company’s pricing activities relating to the shipment of coal from the southern Powder River Basin. The Company is responding to the request.

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AGRICULTURAL PRODUCTS:

The transportation of Agricultural Products provided approximately 16 percent of 2004 total freight revenues and includes wheat, corn, bulk foods, soybeans, oil seeds and meals, feeds, barley, oats and rye, flour and mill products, milo, oils, specialty grains, malt, ethanol and fertilizer. The BNSF Railway system is strategically located to serve the grain-producing regions of the Midwest and Great Plains. The Company is developing and operating a shuttle network for grain, grain products and fertilizer, which allows more efficient use of equipment and improved cycle times as a result of the shuttle process. In addition to serving most grain-producing areas, BNSF Railway serves most major terminal, storage, feeding and food-processing locations. Furthermore, BNSF Railway has access to major export markets in the Pacific Northwest, western Great Lakes, Texas Gulf and Mexico.

FREIGHT STATISTICS:

The following table sets forth certain freight statistics relating to rail operations for the periods indicated:

Revenue, cars/units and average revenue per car/unit information for the three years ended December 31, 2004, is incorporated by reference from a table in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, under the headings “Results of Operations; Revenue Table.”

GOVERNMENT REGULATION AND LEGISLATION

The Company is subject to federal, state and local laws and regulations generally applicable to all businesses. Rail operations are subject to the regulatory jurisdiction of the Surface Transportation Board (STB) of the United States Department of Transportation (DOT), the Federal Railroad Administration of the DOT, the Occupational Safety and Health Administration (OSHA), as well as other federal and state regulatory agencies. The STB has jurisdiction over disputes and complaints involving certain rates, routes and services, the sale or abandonment of rail lines, applications for line extensions and construction, and consolidation or merger with, or acquisition of control of, rail common carriers. The outcome of STB proceedings can affect the profitability of BNSF’s business.

DOT and OSHA have jurisdiction under several federal statutes over a number of safety and health aspects of rail operations, including the transportation of hazardous materials. State agencies regulate some aspects of rail operations with respect to health and safety in areas not otherwise preempted by federal law.

BNSF Railway’s rail operations, as well as those of its competitors, are also subject to extensive federal, state and local environmental regulation. These laws cover discharges to water, air emissions, toxic substances, and the generation, handling, storage, transportation and disposal of waste and hazardous materials. This regulation has the effect of increasing the cost and liabilities associated with rail operations. Environmental risks are also inherent in rail operations, which frequently involve transporting chemicals and other hazardous materials.

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Many of BNSF Railway’s land holdings are and have been used for industrial or transportation-related purposes or leased to commercial or industrial companies whose activities may have resulted in discharges onto the property. As a result, BNSF Railway is now subject and will from time to time continue to be subject to environmental cleanup and enforcement actions. In particular, the federal Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), also known as the Superfund law, generally imposes joint and several liability for cleanup and enforcement costs, on current and former owners and operators of a site, without regard to fault or the legality of the original conduct. Accordingly, BNSF Railway may be responsible under CERCLA and other federal and state statutes for all or part of the costs to cleanup sites at which certain substances may have been released by BNSF Railway, its current lessees, former owners or lessees of properties, or other third parties. Further discussion is incorporated by reference from Note 10 of the Consolidated Financial Statements.

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COMPETITION

The business environment in which BNSF Railway operates is highly competitive. Depending on the specific market, deregulated motor carriers, other railroads and river barges may exert pressure on price and service levels. The presence of advanced, high service truck lines with expedited delivery, subsidized infrastructure and minimal empty mileage continues to affect the market for non-bulk, time sensitive freight. The potential expansion of longer combination vehicles could further encroach upon markets traditionally served by railroads. In order to remain competitive, BNSF Railway and other railroads continue to develop and implement operating efficiencies to improve productivity.

As railroads streamline, rationalize and otherwise enhance their franchises, competition among rail carriers intensifies. BNSF Railway’s primary rail competitor in the western region of the United States is the Union Pacific Railroad Company (UP). Other Class I railroads and numerous regional railroads and motor carriers also operate in parts of the same territories served by BNSF Railway.

Based on weekly reporting to the Association of American Railroads, in 2004, BNSF’s share of the western United States rail traffic was approximately 46.4 percent.

Item 3. Legal Proceedings

Ray Ridgeway, et al. v. Burlington Northern Santa Fe Corporation and The Burlington Northern and Santa Fe Railway Company, No. 48-185170-00 (District Court of Tarrant County, Texas, 48^th Judicial District) is a state court action filed on October 27, 2000. The plaintiffs’ causes of action include alleged breach of contract, negligence, and breach of fiduciary duties with respect to a special dividend that was paid in 1988 by a Burlington Northern Santa Fe Corporation (BNSF) predecessor, Santa Fe Southern Pacific Corporation (SFSP). The complaint alleges that SFSP erroneously informed shareholders as to the tax treatment of the dividend–specifically, the apportionment of the dividend as either a distribution of earnings and profits or a return of capital–which allegedly caused some shareholders to overpay their income taxes. The plaintiffs assert, through their expert’s report, that SFSP had essentially no accumulated earnings and profits and that the entire dividend distribution should have been treated as a return of capital, rather than the approximately 34 percent that SFSP determined was a return of capital. On December 15, 2004, the court issued a letter to the parties indicating that it intends to deny the plaintiffs’ requests to certify a class action and will be issuing an order to that effect. BNSF believes these claims lack merit and that it has substantial defenses on both the merits of these claims and the attempted class action, as evidenced by the court’s letter, and it is defending these claims vigorously.

Reference is made to Note 5 of the Consolidated Financial Statements for information concerning certain pending tax related administrative or adjudicative state proceedings or appeals and to Note 10 of the Consolidated Financial Statements for information concerning other claims and litigation.

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Item 4. Submission of Matters to a Vote of Security Holders

No matters were submitted by BNSF to a vote of its securities holders during the fourth quarter of 2004.

EXECUTIVE OFFICERS OF THE REGISTRANT

Listed below are the names, ages, and positions of all executive officers of BNSF and their business experience during the past five years. Executive officers hold office until their successors are elected or appointed, or until their earlier death, retirement, resignation, or removal.

MATTHEW K. ROSE, 45

Chairman, President and Chief Executive Officer of BNSF since March 2002. Previously President and Chief Executive Officer of BNSF from December 2000. Also, Chairman, President and Chief Executive Officer of BNSF Railway from December 2000. Previously, President and Chief Operating Officer of BNSF from June 1999 to December 2000.

THOMAS N. HUND, 51

Executive Vice President and Chief Financial Officer since January 2001. Prior to that, Senior Vice President and Chief Financial Officer and Treasurer from August 1999.

CARL R. ICE, 48

Executive Vice President and Chief Operations Officer since January 2001. Prior to that, Senior Vice President-Operations from June 1999.

DENNIS R. JOHNSON, 43

Vice President and Controller since August 1999.

JOHN P. LANIGAN, JR., 49

Executive Vice President and Chief Marketing Officer since January 2003. Prior to that, President and Chief Executive Officer of Logistics.com, Inc. (provider of ASP-based transportation procurement services to shippers and carriers) from May 2000, and President and Chief Operating Officer from March 2000; and Chief Operating Officer of Schneider National, Inc. (truckload freight hauler) from 1999 to 2000.

JEFFREY R. MORELAND, 60

Executive Vice President Law & Government Affairs and Secretary since December 2001. Prior to that, Executive Vice President-Law and Chief of Staff since January 2001, and Senior Vice President-Law and Chief of Staff since February 1998.

PETER J. RICKERSHAUSER, 56

Vice President-Network Development since May 1999.

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Part II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

BNSF’s common stock is listed on the New York Stock Exchange under the symbol “BNI.” The common stock is also listed on the Chicago Stock Exchange and Pacific Exchange. Information as to the high and low sales prices of such stock for the two years ending December 31, 2004, and the frequency and amount of dividends declared on such stock during such periods, is set forth in Note 17 of the Consolidated Financial Statements. The approximate number of holders of record of the common stock at February 2, 2005, was 40,000.

COMMON STOCK REPURCHASES

The following table presents repurchases by the Company of its common stock for each of the three months for the quarter ended December 31, 2004 (shares in thousands):

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Item 6. Selected Financial Data

The following table presents, as of and for the dates indicated, selected historical financial information for the Company (dollars in millions, except per share data):

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Management’s discussion and analysis relates to the financial condition and results of operations of Burlington Northern Santa Fe Corporation, its majority-owned subsidiaries, and a variable interest entity for which Burlington Northern Santa Fe is the primary beneficiary, all of which are separate legal entities (collectively, BNSF or Company). The principal subsidiary of BNSF is BNSF Railway Company (BNSF Railway). All earnings per share information is stated on a diluted basis.

INTRODUCTION

BNSF Railway continues to be one of the primary rail transporters in North America with one of the largest railroad networks consisting of 32,000 route miles in 28 states and two Canadian provinces. BNSF Railway transports a wide range of products and commodities including the transportation of Consumer Products, Industrial Products, Coal and Agricultural Products. Based on weekly reporting to the Association of American Railroads, for 2004, BNSF’s share of the western United States rail traffic was approximately 46.4 percent.

BNSF achieved 16 percent freight revenue growth in 2004 primarily due to double-digit volume increases which were driven by the continued economic expansion, growth from new and existing customers, and increased export demand for grain. Of the 16 percent increase in freight revenue, approximately 3 percent was driven by fuel surcharges and about 3 percent was attributable to price increases. Average revenue per car increased 5 percent in 2004 compared with 2003 also as a result of rate increases and increased fuel surcharges. For 2005, the Company anticipates continued revenue growth as both the global and U.S economies continue to expand. The following graph depicts the business mix of the Company:

2004 earnings per share were $2.10, which includes the impact of the charge discussed below. This compares to 2003 earnings per share of $2.19, which included the favorable cumulative effect of an accounting change of $0.10 per diluted share.

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During the third quarter of 2004, BNSF recorded a $465 million pre-tax charge to reflect changes in its estimate of unasserted asbestos liabilities and environmental liabilities. Of this amount, $293 million and $172 million were related to asbestos and environmental liabilities, respectively. The $465 million pre-tax charge was recorded in materials and other expense and reduced net income by $288 million, or $0.77 per share, for the year ended December 31, 2004. Due to the change in estimate, the Company anticipates an ongoing decrease in operating expense favorably impacting quarterly earnings by about two cents per share. This amount could vary however, based on actual experience. Management does not expect the charge to have any impact on the timing of claim payments.

Operating expenses for 2004 increased 20 percent compared to 2003, primarily driven by the charge mentioned above. The increase in expenses was also the result of an 11 percent increase in gross ton-miles handled and significant fuel price increases.

Each year capital expenditures are a significant use of cash for BNSF. In 2004, BNSF decreased its capital expenditures to $1.5 billion from $1.7 billion in the prior year because locomotives were primarily acquired through operating leases in 2004 instead of being purchased as in 2003. In 2005, the Company plans to incur approximately $1.7 billion in capital expenditures. Approximately $1.2 billion of the total 2005 planned capital expenditures will be for maintenance of business activities, primarily consisting of expenditures to maintain BNSF’s track, signals, bridges and tunnels. The remaining $0.5 billion is planned for terminal and line expansions, as well as other transportation-related projects.

RESULTS OF OPERATIONS

REVENUE TABLE

The following table presents BNSF’s revenue information by commodity group for the years ended December 31, 2004, 2003 and 2002:

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EXPENSE TABLE

The following table presents BNSF’s expense information for the years ended December 31, 2004, 2003, and 2002 (in millions):

YEAR ENDED DECEMBER 31, 2004 COMPARED WITH YEAR ENDED DECEMBER 31, 2003

BNSF recorded net income for 2004 of $791 million, or $2.10 per share. 2004 net income includes a $288 million, net of tax, or $0.77 per share charge for a change in the Company’s estimate of unasserted asbestos liabilities and environmental liabilities (see Note 10 of the Consolidated Financial Statements). In comparison, net income for 2003 was $816 million, or $2.19 per share, which includes the favorable cumulative effect of an accounting change of $39 million, net of tax, or $0.10 per share (see Note 2 of the Consolidated Financial Statements).

REVENUES

FREIGHT

Freight revenues of $10,742 million for 2004 were $1,457 million, or 16 percent, higher than 2003. Freight revenues in 2004 included fuel surcharges of $357 million compared with $110 million in the prior year. Average revenue per car/unit increased 5 percent in 2004 to $1,126 from $1,074 in 2003.

CONSUMER PRODUCTS

The Consumer Products’ freight business includes a significant intermodal component and consists of the following business areas: international, direct marketing, truckload, intermodal marketing companies, automotive, and perishables and dry boxcar.

Consumer Products revenues of $4,245 million for 2004 were $588 million, or 16 percent, greater than 2003. The increase in Consumer Products revenue is primarily due to double digit volume growth in the international, truckload, and perishables sectors. The increase in average revenue per unit of 4 percent is primarily related to rate increases and increased fuel surcharges.

INDUSTRIAL PRODUCTS

Industrial Products’ freight business consists of four business areas: building products, construction products, chemicals and plastics, and petroleum products.

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Industrial Products revenues increased $310 million, or 15 percent, to $2,448 million for 2004. The revenue increase is primarily due to increased lumber, plywood, particle board and paper traffic in the building products sector and increased business in steel, taconite and clay in the construction products sector, as well as increased traffic in petroleum products and plastics. Rate increases along with increased fuel surcharges contributed to a 5 percent increase in average revenue per car.

COAL

BNSF is one of the largest transporters of low-sulfur coal in the United States. Approximately 90 percent of all BNSF Railway’s coal tons originate from the Powder River Basin of Wyoming and Montana.

Coal revenues of $2,277 million for 2004 increased $252 million, or 12 percent, versus a year ago. The increase is primarily a result of new customer business volumes and higher demand from existing customers. Average revenue per car increased 4 percent primarily driven by contractual rate escalations and increased average length of haul.

AGRICULTURAL PRODUCTS

The Agricultural Products’ freight business is the transportation of agricultural products including corn, wheat, soybeans, bulk foods, fertilizer, and other products.

Agricultural Products revenues of $1,772 million for 2004 were $307 million, or 21 percent, higher than revenues for 2003. This increase is primarily driven by strong corn and wheat exports out of the Pacific Northwest. The average revenue per car increased 12 percent primarily driven by the mix of commodity and destination price increases, increased fuel surcharges and increased average length of haul.

OTHER REVENUES

Other Revenues increased $76 million, or 59 percent, to $204 million for 2004 compared to 2003. This increase is primarily attributable to increased volumes related to BNSF Logistics, a wholly-owned subsidiary that specializes in providing third-party logistic services, and demurrage.

EXPENSES

Total operating expenses for 2004 were $9,260 million, an increase of $1,512 million, or 20 percent, over 2003. The increase was primarily due to a $465 million pre-tax charge to reflect changes in the Company’s estimate of unasserted asbestos liabilities and environmental liabilities. The increase in operating expenses was also the result of an 11 percent increase in gross-ton miles handled and significant fuel price increases.

COMPENSATION AND BENEFITS

Compensation and benefits includes expenses for BNSF employee compensation and benefit programs. The primary factors influencing the expenses recorded are volume, headcount, utilization, wage rates, incentives earned during the period, benefit plan participation and pension expenses.

Compensation and benefits expenses of $3,322 million were $359 million, or 12 percent, higher than 2003. The increase is primarily related to the significant increase in volumes. These increases in traffic volume drove an approximate 3 percent increase in employee headcount as well as greater overtime and crew training costs. Improved financial performance has led to higher incentive expenses for the Company’s salaried and scheduled workforce. Additionally, BNSF recognized increased pension costs of $17 million.

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PURCHASED SERVICES

Purchased services expense includes ramping and drayage, maintenance of locomotive and freight car equipment and technology services outsourcing, and other services, such as vegetation control, provided to BNSF, as well as purchased transportation costs for BNSF Logistics. The expenses are driven by the rates established in the service contracts and the volume of services required.

Purchased services expenses of $1,424 million for 2004 were $172 million, or 14 percent, higher than 2003 primarily due to higher costs for locomotive contract maintenance expense of $50 million, haulage expense of $27 million and intermodal ramp costs of $20 million for contracted transportation over other railroads all of which were primarily driven by higher volume. Additionally, purchased transportation costs for BNSF Logistics increased $45 million as a result of increases in its business.

DEPRECIATION AND AMORTIZATION

Depreciation and amortization expenses for the period are determined by using the group method of depreciation, applying a single rate to the gross investment in a particular class of property. Due to the capital-intensive nature of BNSF’s operations, depreciation expense is a significant component of the Company’s operating expense. The full effect of inflation is not reflected in operating expenses since depreciation is based on historical cost.

Depreciation and amortization expenses of $1,012 million for 2004 were $102 million, or 11 percent, higher than 2003. The majority of the increase is due to ongoing capital expenditures. Additionally, about $40 million of this increase was due to the expiration of credits to depreciation expense resulting from the application of purchase accounting at the time of the merger in 1996. As a result of a depreciation rate study completed with the assistance of third-party consultants in 2004, BNSF adopted new depreciation rates applied to track structure. This change in rate caused a net decrease in annual depreciation expense of approximately $5 million for 2004 and approximately $16 million on an ongoing annual basis, as calculated using the asset base at the time of the rate change.

EQUIPMENT RENTS

Equipment rents expense includes long-term and short-term payments primarily for locomotives, freight cars, containers and trailers. Variances in expense are driven primarily by volume, rental rates, the results of lease negotiations, utilization of owned equipment versus leased equipment, and changes in business mix resulting in equipment usage variances.

Equipment rents expenses for 2004 of $790 million were $85 million, or 12 percent, higher than 2003. Expense increases of $68 million for freight car equipment and $17 million for locomotive leases are predominantly related to significant volume increases.

FUEL

Fuel expense is driven by the level of locomotive consumption, market price and the effects of hedging activities.

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Fuel expenses of $1,335 million for 2004 were $242 million, or 22 percent, higher than 2003. The increase in fuel expense is due to an increase in the average all-in cost per gallon of diesel fuel, as well as an increase in consumption driven by higher volumes. The average all-in cost per gallon of diesel fuel increased by 9-cents, or $124 million, which is comprised of an increase in the average purchase price of 29 cents, or $394 million, partially offset by an increase in the hedge benefit of 20-cents, or $270 million (2004 benefit of $338 million less 2003 benefit of $68 million). Consumption in 2004 was 1,344 million gallons compared with 1,213 million gallons in 2003.

MATERIALS AND OTHER

Material expenses consist mainly of the costs involved to purchase mechanical and engineering materials and other items for construction and maintenance of property and equipment. Other expenses include personal injury claims, environmental remediation, and derailments as well as employee separation costs, utilities, and property and miscellaneous taxes. The total is offset by gains on land sales and other recoveries.

Materials and other expenses of $1,377 million for 2004, which consists of approximately $300 million of materials expense with the remainder consisting of other items, including a charge of $465 million related to a change in BNSF’s estimates of unasserted asbestos liabilities and environmental liabilities, were $552 million higher than 2003. In addition to the charge, materials and other expenses increased due to higher material costs of $44 million primarily to maintain freight cars and locomotives due to higher volumes, increased environmental expenses of $28 million primarily related to developments at two former fueling facility sites, increased casualty costs of $32 million driven by two large derailments, and a $24 million decrease in the carrying value of certain assets (see Note 7 of the Consolidated Financial Statements) partially offset by decreases in property and other miscellaneous taxes of $9 million, and increased gains from land sales of $23 million.

INTEREST EXPENSE

Interest expense of $409 million for 2004 was $11 million, or 3 percent, lower than 2003. This decrease was primarily the result of lower average interest rates and lower average debt outstanding.

OTHER EXPENSE, NET

Other expense of $4 million for 2004 was $10 million lower than in 2003. The decrease in expense was due to the receipt of interest income on a settlement that occurred during the third quarter of 2004, partially offset by losses on company owned life insurance.

INCOME TAXES

The effective tax rate in 2004 was 37.9 percent compared with 36.9 percent for the prior-year. The increase in the effective tax rate primarily reflects a tax settlement attributable to prior years that was settled favorably in 2003.

YEAR ENDED DECEMBER 31, 2003 COMPARED WITH YEAR ENDED DECEMBER 31, 2002

BNSF recorded net income for 2003 of $816 million, or $2.19 per share, which includes the favorable cumulative effect of an accounting change of $39 million, net of tax, or $0.10 per share (see Note 2 of the Consolidated Financial Statements), compared with net income for 2002 of $760 million, or $2.00 per share. Operating income of $1,665 million in 2003 was $9 million higher than 2002.

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REVENUES

FREIGHT

Freight revenues of $9,285 million for 2003 were $412 million, or 5 percent, higher than 2002. Freight revenues in 2003 included fuel surcharges of $110 million compared with $26 million in the prior year. Average revenue per car/unit decreased 1 percent in 2003 to $1,074 from $1,084 in 2002.

CONSUMER PRODUCTS

Consumer Products revenues of $3,657 million for 2003 were $304 million, or 9 percent, greater than 2002. The increase in Consumer Products revenue is primarily due to increased volumes in the international and truckload sectors. The reduction in average revenue per unit of 2 percent is primarily related to the strong growth in the international sector, which has lower average revenue per unit.

INDUSTRIAL PRODUCTS

Industrial Products revenues increased $97 million, or 5 percent, to $2,138 million for 2003. The revenue increase is primarily due to increased business in steel, taconite, clay and minerals in the construction products sector and increased military, lumber, plywood, particle board and paper traffic in the building products sector, which were somewhat offset by lower plastics traffic. Rate increases along with increased fuel surcharges contributed to a 4 percent increase in average revenue per car.

COAL

Coal revenues of $2,025 million for 2003 decreased $46 million, or 2 percent, versus a year ago. The decrease is primarily a result of lower volumes from the first quarter draw-down of utility stockpiles, weaker demand due to milder weather, utility plant shutdowns and the conversion of a utility plant from coal to natural gas. The average revenue per car grew slightly.

AGRICULTURAL PRODUCTS

Agricultural Products revenues of $1,465 million for 2003 were $57 million, or 4 percent, higher than revenues for 2002. This increase is primarily due to more ethanol shipments from plants in the Midwest to California and higher shipments of ethanol by-products. Increased export shipments of soybeans also contributed to growth. The average revenue per car was down slightly due to a change in traffic mix partially offset by increased fuel surcharges.

EXPENSES

Total operating expenses for 2003 were $7,748 million, an increase of $425 million, or 6 percent, over 2002 primarily due to higher fuel expenses and greater volumes handled.

COMPENSATION AND BENEFITS

Compensation and benefits expenses of $2,963 million were $69 million, or 2 percent, higher than 2002 primarily due to higher volumes and the implementation of Statement of Financial Accounting Standards (SFAS) No. 143, Accounting for Asset Retirement Obligations, as described in Note 2 of the Consolidated Financial Statements, as well as wage inflation, higher pension costs and new hire crew training, partially offset by lower head counts and the favorable impact of railroad retirement reform on payroll tax costs.

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PURCHASED SERVICES

Purchased services expenses of $1,252 million for 2003 were $106 million, or 9 percent, higher than 2002 primarily due to volume-related intermodal ramp and drayage costs and increased locomotive maintenance costs associated with maintaining more locomotives as well as higher service contracts expense related to an agreement to outsource the management of a large portion of BNSF’s information technology infrastructure entered into during the third quarter of 2002 and the implementation of SFAS No. 143.

DEPRECIATION AND AMORTIZATION

Depreciation and amortization expenses of $910 million for 2003 were $21 million, or 2 percent, lower than 2002 primarily due to the implementation of SFAS No. 143, as well as new lower depreciation rates for locomotives partially offset by normal increases for capital expenditures.

EQUIPMENT RENTS

Equipment rents expenses for 2003 of $705 million were $7 million, or 1 percent, higher than 2002 primarily due to volume growth partially offset by decreases in intermodal and carload equipment rent expenses. Decreases in intermodal and carload equipment rent expenses are a result of greater use of private trailers and containers, as well as favorable lease renegotiations and short term lease rate incentives.

FUEL

Fuel expenses of $1,093 million for 2003 were $245 million, or 29 percent, higher than 2002. The increase in fuel expense was primarily the result of a 16-cent, or $194 million, increase in the average all-in cost per gallon of diesel fuel. The increase in the average all-in cost per gallon of diesel fuel is comprised of a 17-cent, or $212 million, increase in the average purchase price which is partially offset by an increase in the hedge benefit of 1-cent, or $18 million (2003 benefit of $68 million less 2002 benefit of $50 million). Consumption in 2003 was 1,213 million gallons compared with 1,149 million gallons in 2002.

MATERIALS AND OTHER

Materials and other expenses of $825 million for 2003 were $19 million, or 2 percent, higher than 2002 principally due to the implementation of SFAS No. 143, employee severance costs and lower gains from property sales substantially offset by decreased material costs and bad debt expense.

INTEREST EXPENSE

Interest expense of $420 million for 2003 was $8 million, or 2 percent, lower than 2002. This decrease was primarily the result of lower average interest rates and an increased benefit from interest rate hedges, partially offset by higher average debt outstanding.

OTHER EXPENSE, NET

Other expense of $14 million for 2003 was $2 million higher than in 2002.

INCOME TAXES

The effective tax rate in 2003 was 36.9 percent compared with 37.5 percent for the prior-year period. The decrease in the effective tax rate primarily reflects a tax settlement attributable to prior years that was settled favorably in the second quarter of 2003.

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LIQUIDITY AND CAPITAL RESOURCES

Cash generated from operations is BNSF’s principal source of liquidity. BNSF generally funds any additional liquidity requirements through debt issuance including commercial paper, the leasing of assets and the sale of a portion of its accounts receivable.

OPERATING ACTIVITIES

2004

Net cash provided by operating activities was $2,377 million during 2004 compared with $2,285 million during 2003. The increase is primarily the result of an increase in earnings before the effect of the third quarter charge related to a change in BNSF’s estimates of unasserted asbestos liabilities and environmental liabilities, which had a de minimis impact on the Company’s cash flows.

2003

Net cash provided by operating activities was $2,285 million during 2003 compared with $2,106 million during 2002. The increase was primarily the result of changes in working capital and the Seattle Sound Transit transaction (see further discussion under the headings “Other Matters; Seattle Sound Transit”).

INVESTING ACTIVITIES

2004

Net cash used for investing activities was $1,595 million during 2004 compared with $1,806 million during 2003. Investing activities for the year include $1,527 million of capital expenditures which were $199 million lower than 2003 primarily due to the fact that most of the locomotives acquired in 2004 were leased, whereas the majority of locomotives acquired in 2003 were purchased.

2003

Net cash used for investing activities was $1,806 million during 2003 compared with $1,517 million during 2002. Investing activities for the year included $1,726 million of capital expenditures which were $368 million higher than 2002 primarily related to the purchase, instead of lease, of locomotives as well as the advance construction of double track on a portion of BNSF Railway’s transcontinental route.

A breakdown of cash capital expenditures during 2004, 2003 and 2002 is set forth in the following table (in millions):

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The above table does not include expenditures for equipment financed through operating leases (principally related to locomotives).

FINANCING ACTIVITIES

2004

Net cash used for financing activities during 2004 was $478 million primarily related to: (i) dividend payments of $231 million; (ii) net debt repayments of $292 million; and (iii) common stock repurchases of $376 million which were offset by proceeds from stock options exercised of $420 million.

Aggregate debt to mature in 2005 is $465 million. BNSF’s ratio of net debt to total capitalization was 39.9 percent at December 31, 2004, compared with 44.0 percent at December 31, 2003. The Company’s adjusted net debt to total capitalization, including operating lease commitments was 51.0 percent at December 31, 2004, compared to 54.3 percent at December 31, 2003. BNSF’s adjusted net debt to total capitalization is a non-GAAP measure and should be considered in addition to, but not as a substitute or preferable to, the information prepared in accordance with GAAP. However, the information is included herein as management believes that adjusted net debt to total capitalization provides meaningful additional information about the ability of BNSF to service long-term debt and other fixed obligations and to fund future growth. The following table presents a reconciliation of the calculation of adjusted net debt to total capitalization percentage:

The decrease in adjusted net debt to total capitalization reflects the improved financial performance of BNSF.

The Company issued $250 million of 4.88 percent notes due January 15, 2015. The net proceeds of the debt issuance were used for general corporate purposes including the repayment of outstanding commercial paper.

BNSF had $500 million of debt capacity available under its shelf registration at December 31, 2004.

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2003

Net cash used for financing activities during 2003 was $489 million primarily related to common stock repurchases of $217 million, dividend payments of $191 million and net debt repayments of $151 million partially offset by proceeds from stock options exercised of $68 million.

The Company exercised an option to call $150 million of 7.50 percent bonds due July 2023. The bonds were called at a price of 103.02 percent of par and commercial paper was used to fund the call.

BNSF issued $250 million of 4.30 percent notes due July 1, 2013. The net proceeds of the debt issuance were used for general corporate purposes including the repayment of outstanding commercial paper.

The Company exercised an option to call $29 million of 2.63 percent mortgage bonds issued by a predecessor company and due January 1, 2010. Cash generated from operations was used to fund the call.

2002

Net cash used for financing activities during 2002 was $587 million primarily related to common stock repurchases of $353 million, a net reduction in borrowings of $90 million and dividend payments of $183 million, partially offset by proceeds of $40 million resulting from the exercise of 2.3 million stock options.

The Company constructed an intermodal facility built by a third party real estate developer and entered into an agreement to lease the intermodal facility for 20 years from a third party lessor. Under accounting guidance, the Company was considered the owner of the facility during the construction period. The transaction was evaluated and it was determined that sale-leaseback accounting did not apply due to the existence of a purchase option. Accordingly, the transaction was treated as a financing for which the Company recorded an asset in property and equipment, net and a liability in long-term debt and commercial paper of $138 million that represented the fair market value at lease inception.

BNSF issued $300 million of 5.90 percent notes due July 1, 2012. The net proceeds of the debt issuance were used for general corporate purposes including the repayment of outstanding commercial paper.

DIVIDENDS

Common stock dividends declared were $0.64 per share, $0.54 per share, and $0.48 per share annually for 2004, 2003 and 2002, respectively. Dividends paid on common stock were $231 million, $191 million and $183 million during 2004, 2003 and 2002, respectively.

COMMON STOCK REPURCHASE PROGRAM

In July 1997, the Board authorized the repurchase of up to 30 million shares of the Company’s common stock from time to time in the open market. In December 1999, April 2000, September 2000 and January 2003, the Board authorized extensions of the BNSF share repurchase program, adding 30 million shares at each date to the total shares previously authorized bringing BNSF’s share repurchase program to 150 million shares. During 2004, 2003 and 2002, the Company repurchased approximately 10 million, 8 million, and 13 million shares, respectively, of its common stock at average prices of $35.98 per share, $27.25 per share, and $27.85 per share, respectively. Total repurchases through December 31, 2004, were 134 million shares at a total average cost of $26.82 per share, leaving 16 million shares available for repurchase out of the 150 million shares presently authorized.

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LONG-TERM DEBT AND OTHER OBLIGATIONS

The Company’s business is capital intensive. BNSF has historically generated a significant amount of cash from operating activities which it uses to fund capital additions, service debt, repurchase shares and pay dividends. Additionally, the Company relies on access to the debt and leasing markets to finance a portion of capital additions on a long-term basis.

BNSF has agreed to acquire 1,315 locomotives by 2009. As of December 31, 2004, BNSF has taken delivery of 615 of the 1,315 locomotives. During 2004, BNSF took delivery of 334 locomotives which were primarily financed through operating leases.

In the first quarter of 2004, BNSF entered into a contractual obligation to acquire 6,000 grain cars over the course of the next four years. Through December 31, 2004, BNSF has taken delivery of 1,493 of the hoppers which were primarily financed through operating leases.

The locomotives and grain cars under these agreements have been or are expected to be financed through one or a combination of sources including, but not limited to, cash from operations, capital or operating leases and debt issuances. The decision on the method used for a particular acquisition financing will depend on market conditions and other factors at that time.

The Company utilizes a commercial paper program backed by bank revolving credit agreements to manage liquidity needs. The following table summarizes the more significant obligations of the Company at December 31, 2004. For 2005 and the foreseeable future, the Company expects that cash from operating activities, access to capital markets and bank revolving credit agreements will be sufficient to enable the Company to meet its obligations when due. The Company believes these sources of funds will also be sufficient to fund capital additions that are necessary to maintain its competitiveness and position the Company for future revenue growth.

The Company’s ratio of earnings to fixed charges was 3.06 and 3.00 times for the years ended December 31, 2004 and 2003, respectively. Additionally, the Company’s ratio of net cash provided by operating activities divided by total average debt was 35 percent and 33 percent for the years ended December 31, 2004 and 2003, respectively. The increase in the ratio of net cash provided by operating activities divided by total average debt is primarily due to increased revenue and lower average debt outstanding.

The following table summarizes the Company’s obligations under long-term debt and other contractual commitments at December 31, 2004 (in millions):

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In the normal course of business, the Company enters into long-term contractual requirements for future goods and services needed for the operations of the business. Such commitments are not in excess of expected requirements and are not reasonably likely to result in performance penalties or payments that would have a material adverse effect on the Company’s liquidity.

CREDIT AGREEMENTS

Commercial paper and the revolving credit agreements are discussed in Note 9 of the Consolidated Financial Statements. The revolving credit agreements include covenants and events of default typical for this type of facility, including a minimum consolidated tangible net worth test, a maximum debt-to-capital test, and a $75 million cross-default provision. At December 31, 2004, the Company was in compliance with its debt covenants. BNSF’s tangible net worth is $4 billion greater than the minimum consolidated tangible net worth required under the agreement, and the maximum debt-to-capital test provides approximately $7 billion of debt capacity above BNSF’s outstanding debt as of December 31, 2004, before an event of default would occur under these covenants. With the exception of a voluntary bankruptcy or insolvency, any event of default has either or both a cure period or notice requirement before termination of the agreements. A voluntary bankruptcy or insolvency would be considered an immediate termination event.

OFF-BALANCE SHEET ARRANGEMENTS

SALE OF ACCOUNTS RECEIVABLE

The accounts receivable sales program of Santa Fe Receivables Corporation (SFRC), as described in Note 6 of the Consolidated Financial Statements, includes various provisions that, if triggered, would allow the investors participating in this program, at their option, to cancel the program. These provisions include a minimum consolidated tangible net worth test and a maximum debt-to-capital test which are the same as in the BNSF revolving credit agreements described above. BNSF’s tangible net worth is approximately $4 billion greater than the minimum consolidated tangible net worth required under the agreement, and the maximum debt-to-capital test provides approximately $7 billion of debt capacity above BNSF’s outstanding debt as of December 31, 2004. At December 31, 2004, investor interests of $650 million were outstanding under the $700 million accounts receivable facility. SFRC renewed $350 million of the $700 million accounts receivables facility, effective June 2004, for an additional 364 days. In addition, SFRC entered into a separate $350 million accounts receivables facility, effective June 2003, with a five-year term. As a result of amendments to the facilities in October, 2004, the commitments of the investors to purchase undivided interests for the two facilities under the accounts receivable sales program are currently scheduled to expire in October 2005 and October 2008, respectively. Management expects to be able to either extend the commitment of the current investors under the accounts receivable sales program past October 2005 or to find additional investors in the accounts receivable sales program who will be committed to purchase undivided interests after October 2005.

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The accounts receivable sales program provides efficient financing at a competitive interest rate to traditional borrowing arrangements. Since the funding is collateralized by BNSF receivables, the risk of exposure is only as great as the risk of default on these receivables (see Note 6 of the Consolidated Financial Statements).

GUARANTEES

The Company acts as guarantor for certain debt and lease obligations of others. During the year ended December 31, 2004 the Company has primarily utilized guarantees to allow third-party entities to obtain favorable terms to finance the construction of assets that will benefit the Company. Additionally, in the ordinary course of business, BNSF enters into agreements with third parties that include indemnification clauses. The Company does not expect performance under these guarantees or indemnities to have a material adverse effect on the Company’s liquidity in the foreseeable future (see Note 9 of the Consolidated Financial Statements).

PENSION FUNDING

The Company will make required contributions of approximately $13 million to the qualified BNSF Retirement Plan in 2005.

INFLATION

Due to the capital-intensive nature of BNSF’s business, the full effect of inflation is not reflected in operating expenses because depreciation is based on historical cost. An assumption that all operating assets were depreciated at current price levels would result in substantially greater expense than historically reported amounts.

OTHER MATTERS

COMMERCIAL

In July 2004, BNSF Railway initiated an arbitration proceeding under a Joint Service Agreement (JSA) with J.B. Hunt Transportation (J.B. Hunt), a major truckload carrier with which BNSF Railway handles substantial joint intermodal movements. In the proceeding, BNSF Railway is seeking an increase in its divisions of joint revenue for intermodal movements. In the pending proceeding, J.B. Hunt is also challenging the divisions basis and raising other issues under the JSA. The result of this proceeding is not expected to have a material adverse effect on the Company’s results of operations, financial position or liquidity.

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HEDGING ACTIVITIES

The Company uses derivatives to hedge against increases in diesel fuel prices and interest rates as well as to convert a portion of its fixed-rate long-term debt to floating-rate debt. The Company formally documents the relationship between the hedging instrument and the hedged item, as well as the risk management objective and strategy for the use of the hedging instrument. This documentation includes linking the derivatives that are designated as fair value or cash flow hedges to specific assets or liabilities on the balance sheet, commitments or forecasted transactions. The Company assesses at the time a derivative contract is entered into, and at least quarterly thereafter, whether the derivative item is effective in offsetting the changes in fair value or cash flows. Any change in fair value resulting from ineffectiveness, as defined by SFAS No. 133, Accounting for Derivative Instruments and Hedging Activities, as amended, is recognized in current period earnings. For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gain or loss on the derivative instrument is recorded in Accumulated Other Comprehensive Income (AOCI) as a separate component of stockholders’ equity and reclassified into earnings in the period during which the hedge transaction affects earnings.

FUEL

BNSF measures the fair value of fuel hedges from data provided by various external counterparties. To value a swap, the Company uses the forward commodity price for the period hedged. The fair values of costless collars are calculated and provided by the corresponding counterparties. BNSF monitors its hedging positions and credit ratings of its counterparties and does not anticipate losses due to counterparty nonperformance (see Note 3 of the Consolidated Financial Statements).

INTEREST RATE

From time to time, the Company enters into various interest rate hedging transactions for the purpose of managing exposure to fluctuations in interest rates and establishing rates in anticipation of future debt issuances as well as to convert a portion of its fixed-rate long-term debt to floating-rate debt. The Company uses interest rate swaps and treasury locks as part of its interest rate risk management strategy. BNSF’s measurement of the fair value of interest rate swaps and treasury locks is based on estimates of the mid-market values for the transactions provided by the counterparties to these agreements (see Note 3 of the Consolidated Financial Statements).

EMPLOYEE AND LABOR RELATIONS

Approximately 88 percent of BNSF Railway’s employees are union-represented. BNSF Railway’s union employees work under collective bargaining agreements with various different labor organizations. A negotiating process for new, major collective bargaining agreements covering all of BNSF Railway’s union employees has been underway since a bargaining round was initiated November 1, 1999. Wages, health and welfare benefits, work rules, and other issues have traditionally been addressed through industry-wide negotiations. These negotiations have generally taken place over an extended period of time and have previously not resulted in any extended work stoppages. The existing agreements have remained in effect and will continue to remain in effect until new agreements are reached or the Railway Labor Act’s procedures (which include mediation, cooling-off periods, and the possibility of Presidential intervention) are exhausted. The current agreements provide for periodic wage increases until new agreements are reached.

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2005 BARGAINING ROUND

The current bargaining round for all unions with contracts that will come into effect after January 1, 2005, began on and after November 1, 2004, with the serving of Section 6 notices which are each side’s initial proposals. BNSF will participate in coordinated national handling of these proposals. The current agreements, as discussed above, are in effect until new agreements are reached or until changes to the existing agreements are made.

UNIONS WITH AN AGREEMENT UNDER THE PREVIOUS BARGAINING ROUND

In the previous bargaining round, the United Transportation Union, the Brotherhood of Maintenance of Way Employes, the Brotherhood of Locomotive Engineers and Trainmen, the Transportation Communications Union, the Brotherhood of Railroad Signalmen, the American Train Dispatchers Association, and the International Brotherhood of Electrical Workers representing approximately 91 percent, collectively, of BNSF’s unionized workforce, have reached final agreements that cover periods through December 2004.

UNIONS WHICH HAVE NOT SETTLED AN AGREEMENT UNDER THE PREVIOUS BARGAINING ROUND

Through the National Carriers’ Conference Committee, BNSF is continuing efforts to settle the previous bargaining round with the International Association of Machinists, Sheet Metal Workers’ International Association, and National Conference of Firemen and Oilers, which together represent approximately 9 percent of the Company’s unionized workforce.

RAILROAD RETIREMENT REFORM

Railroad industry personnel are covered by the Railroad Retirement System instead of Social Security. BNSF Railway’s contributions under the Railroad Retirement System have been approximately triple those in industries covered by Social Security. The Railroad Retirement System, funded primarily by payroll taxes on covered employers and employees, includes a benefit roughly equivalent to Social Security (Tier I), an additional benefit similar to that allowed in some private defined-benefit plans (Tier II), and other benefits. Investment of Tier II Railroad Retirement assets had, until 2001, been limited to special interest-bearing U.S. Treasury securities. The Railroad Retirement and Survivors’ Improvement Act of 2001 (Act) creates a new National Railroad Retirement Investment Trust to hold Tier II Railroad Retirement assets and empowers the trustees to invest these assets in the same types of investments available to private sector retirement plans. In addition to liberalizing certain retirement benefit requirements for rail employees, the Act reduced Tier II Railroad Retirement tax rates on rail employers beginning in 2002 and eliminated a supplemental annuity tax. In 2002, the Company realized savings of approximately $20 million and realized incremental savings of approximately $30 million and $20 million in 2003 and 2004, respectively. Based on projected wage levels and number of employees, the Company expects to realize further incremental savings in 2005 of approximately $10 million due to an additional 0.5 percentage point reduction in the Tier II rate for 2005. Future adjustments in the Tier II Railroad Retirement tax rates assessed will depend on Railroad Retirement fund levels.

SEATTLE SOUND TRANSIT

In December 2003, the Company entered into several agreements with Central Puget Sound Regional Transit Authority (Sound Transit), a government authority, established by King, Pierce and Snohomish counties within the state of Washington. BNSF has agreed to sell to Sound Transit under the threat of condemnation a combination of (a) four easements enabling Sound Transit to offer commuter rail service over the existing BNSF track from Seattle to Everett and (b) 18 miles of railroad line from south of Tacoma to Nisqually, Washington.

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Sound Transit will pay BNSF approximately $260 million for four commuter easements to operate trains on the segment between Seattle and Everett, and entered into agreements for service on the commuter easements, and joint use of track for commuter and freight purposes. The Company received approximately $80 million of cash in 2003 upon the closing of the first easement and $80 million of cash in 2004 upon closing of the second easement. The sale proceeds will be recognized in income over the use of the associated track structure (approximately 37 years). Over the next three years, upon the subsequent closings subject to conditions in the sale agreement, BNSF will receive an additional $100 million for the remaining two easements.

Sound Transit will also pay BNSF to convey the 18 miles of railroad line and associated real estate from south of Tacoma to Nisqually in three separate sell transactions. First, the Company received approximately $8 million of cash in 2003 and reported a gain in income of $2 million, net of tax, as a result of the real estate sale for station-related parcels to Sound Transit. Second, the Company received $6 million of cash and a $6 million note receivable in the third quarter of 2004 associated with the sale of approximately half of the 18 miles. The gain on this sale was deferred due to certain continuing involvement in the property. This continuing involvement expired in November 2004 and the Company recognized a gain in income of $7 million, net of tax. The Company is expected to collect the $6 million note receivable over the next two years. Third, the Company expects to sell the remaining railroad line and real estate sale in 2005 for approximately $15 million. The Company expects to recognize a gain of approximately $8 million, net of tax, associated with that sale.

AMERICAN JOBS CREATION ACT OF 2004

In October 2004, the American Jobs Creation Act of 2004 was signed into law. Part of the legislation includes the repeal of a 4.3–cent tax per gallon of diesel fuel. The tax will be gradually phased out in 2005 and 2006 and will be completely phased out by 2007. Based on projected fuel consumption, the repeal of the tax is expected to result in incremental savings of approximately $20 million, $10 million, and $30 million for BNSF in 2005, 2006, and 2007, respectively.

CRITICAL ACCOUNTING ESTIMATES

In the ordinary course of business, the Company makes a number of estimates and assumptions related to the reporting of results of operations and financial position in the preparation of its financial statements in conformity with accounting principles generally accepted in the United States of America. Actual results could differ significantly from those estimates under different assumptions and conditions. The following discussion addresses the Company’s most critical accounting estimates.

Management has discussed the development and selection of the critical accounting estimates described below with the Audit Committee of the Board of Directors and the Audit Committee has reviewed the Company’s disclosure relating to them in this Management’s Discussion and Analysis of Financial Condition and Results of Operations.

LEGAL

BNSF’s most significant legal claims relate to personal injury claims and environmental matters. These claims are discussed in more detail below.

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During 2004, BNSF recorded a $465 million pre-tax charge to reflect changes in its estimate of unasserted asbestos liabilities and environmental liabilities. Of this amount, $293 million and $172 million were related to asbestos and environmental liabilities, respectively. The $465 million pre-tax charge was recorded in materials and other expense and reduced net income by $288 million, or $0.77 per share during 2004.

PERSONAL INJURY

Personal injury claims, including employee work-related injuries, asbestos claims and third party injuries, are a significant expense for the railroad industry. Personal injury claims by BNSF Railway employees are subject to the provisions of the Federal Employers’ Liability Act (FELA) rather than state workers’ compensation laws. FELA’s system of requiring the finding of fault, coupled with unscheduled awards and reliance on the jury system, contributed to increased expenses in past years. Other proceedings include claims by non-employees for punitive as well as compensatory damages. A few proceedings purport to be class actions. The variability present in settling these claims, including non-employee personal injury and matters in which punitive damages are alleged, could result in increased expenses in future years. BNSF has implemented a number of safety programs designed to reduce the number of personal injuries as well as the associated claims and personal injury expense.

BNSF records a liability for personal injury claims when the expected loss is both probable and reasonably estimable. The liability and ultimate expense projections are estimated using standard actuarial methodologies. Liabilities recorded for unasserted personal injury claims are based on information currently available. Due to the inherent uncertainty involved in projecting future events such as the number of claims filed each year, developments in judicial and legislative standards, and the average costs to settle projected claims, actual costs may differ from amounts recorded.

ASBESTOS

The Company is party to a number of personal injury claims by employees who worked around asbestos. The heaviest exposure for BNSF employees was due to work conducted in and around the use of steam locomotive engines that were phased out between the years of 1950 and 1967. However, other types of exposures, including exposure from locomotive component parts and building materials, continued after 1967, until it was substantially eliminated by 1985.

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Prior to 2000, claim filings against the Company for asbestos were not numerous and were sporadic. Accordingly, while the Company had concluded that a probable loss had occurred, it did not believe it could estimate the range of reasonably possible loss because of the lack of experience with such claims and the lack of detailed employment records for the population of exposed employees. The Company believed, however, that the low end of the range of reasonably possible loss, as that term is used in FASB Interpretation No. 14 (FIN 14), Reasonable Estimation of the Amount of a Loss, was immaterial. Subsequent to this period, claim filings increased and when they continued into 2004, the Company concluded that the low end of the range of reasonably possible loss would be material and that an estimate for unasserted asbestos exposure liability needed to be recorded. BNSF then engaged a third party with extensive experience in performing asbestos studies to assist in assessing the unasserted liability exposure. The objective of the assessment was to determine the number of estimated unasserted asbestos claims and the estimated average cost per claim. The Company, with the assistance of the third party, first determined its exposed population from which it was able to derive the estimated number of unasserted claims. The estimated average cost per claim was then determined utilizing recent actual average cost per claim data. Based on the assessment, the Company recorded an undiscounted $293 million pre-tax charge for unasserted asbestos claims. The $293 million pre-tax charge was recorded in materials and other expense and reduced net income by $182 million, or $0.49 per share, for the year ended December 31, 2004.

Key elements of the assessment included:

From these assumptions BNSF projected the incidence of each type of disease to the estimated population to arrive at an estimate of the total number of employees that could potentially assert a claim. Historical claim filing rates were applied for each type of disease to the total number of employees that could potentially assert a claim to determine the total number of anticipated claim filings by disease type. Historical dismissal rates, which represent claims that are closed without payment, were then applied to calculate the number of future claims by disease type that would likely require payment by the Company. Finally, the number of such claims was multiplied by the average settlement value to estimate BNSF’s future liability for unasserted asbestos claims.

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The most sensitive assumptions for this accrual are the estimated future filing rates and estimated average claim values. Asbestos claim filings are typically sporadic and may include large batches of claims solicited by law firms. To reflect these factors, BNSF used a multi-year calibration period (i.e., the average historical filing rate for the period 2000-2003) because it believed it would be most representative of its future claim experience. In addition, for non-malignant claims, the number of future claims to be filed against BNSF declines at a rate consistent with both mortality and age as there is a decreasing propensity to file a claim as the population ages. BNSF believes the average claim values by type of disease from the historical period 2002-2004 are most representative of future claim values. Non-malignant claims, which represent approximately 95 percent of the total number and 80 percent of the cost of estimated future asbestos claims, were priced by age of the projected claimants. Historically, the ultimate settlement value of these types of claims is most sensitive to the age of the claimant. A 10 percent increase or decrease in either the forecasted number of unasserted claims or the average claim values would result in an approximate $30 million increase or decrease in the liability recorded for unasserted asbestos claims.

BNSF anticipates obtaining annual updates of the study. On a quarterly basis, BNSF will monitor actual experience against the number of forecasted claims to be received and expected claim payments. Adjustments to the Company’s estimates will be recorded quarterly if necessary. More periodic updates to the study will occur if trends necessitate a change.

The following table summarizes the activity in the Company’s accrued obligations for both asserted and unasserted asbestos matters (in millions):

Of the December 31, 2004 obligation, $292 million is related to unasserted claims while $53 million is related to asserted claims. At both December 31, 2004 and 2003, $18 million is included in current liabilities. The recorded liability was not discounted. In addition, defense and processing costs, which are recorded on an as-reported basis, are not included in the recorded liability. The Company is presently self-insured for asbestos-related claims.

The following table summarizes information regarding only asserted asbestos claims filed against BNSF:

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Based on BNSF’s estimate of the potentially exposed employees and related mortality assumptions, it is anticipated that unasserted claims will continue to be filed through the year 2050. The Company recorded an amount for the full estimated filing period through 2050 because it had a relatively finite exposed population (former and current employees hired prior to 1985) which it was able to identify and reasonably estimate and about which it had obtained reliable demographic data (including age, hire date and occupation) derived from industry or BNSF specific data that was the basis for the study. BNSF projects that approximately 50, 70, and 90 percent of the future unasserted asbestos claims will be incurred within the next 10, 15, and 25 years, respectively.

Because of the uncertainty surrounding the factors used in the study, it is reasonably possible that future costs to settle asbestos claims may range from approximately $250 million to $450 million. However, BNSF believes that the $345 million recorded is the best estimate of the Company’s future obligation for the settlement of asbestos claims.

The amounts recorded by BNSF for the asbestos-related liability were based upon currently known facts. Projecting future events, such as the number of new claims to be filed each year, the average cost of disposing of claims, as well as the numerous uncertainties surrounding asbestos litigation in the United States, could cause the actual costs to be higher or lower than projected.

While the final outcome of asbestos-related matters cannot be predicted with certainty, considering among other things the meritorious legal defenses available and liabilities that have been recorded, it is the opinion of BNSF that none of these items, when finally resolved, will have a material adverse effect on the Company’s financial position or liquidity. However, should a number of these items occur in the same period, it could have a material adverse effect on the results of operations in a particular quarter or fiscal year.

OTHER PERSONAL INJURY

BNSF uses a third party actuary to assist the Company in estimating its other personal injury liability claims and expense. These estimates are based on the covered population, activity levels and trends in frequency, and the costs of covered injuries. These actuarial estimates include unasserted claims except for certain repetitive stress and other occupational trauma claims that result from prolonged repeated events or exposure. Such claims are estimated on an as-reported basis because, while the Company has concluded that a probable loss has occurred, it cannot estimate the range of reasonably possible loss due to other contributing causes of such injuries and the fact that continued exposure is required for the potential injury to manifest itself as a claim. The Company believes that the low end of the range of reasonably possible loss, as that term is used in FASB Interpretation No. 14 (FIN 14), Reasonable Estimation of the Amount of a Loss, is immaterial for these other occupational trauma claims.

Key elements of the actuarial assessment include:

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From these assumptions, BNSF estimates the number of open claims by accident year that will likely require payment by the Company. The projected number of open claims by accident year that will require payment is multiplied by the expected average cost per claim by accident year and type to determine BNSF’s estimated liability for all asserted claims. Additionally, BNSF estimates the number of its incurred but not reported claims that will likely result in payment based upon historical emergence patterns by type of claim. The estimated number of projected claims by accident year requiring payment is multiplied by the expected average cost per claim by accident year and type to determine BNSF’s estimated liability for incurred but not reported claims.

The most sensitive assumptions for this accrual are the expected average cost per claim and the projected frequency rates for the number of claims that will ultimately result in payment. A 10 percent increase or decrease in either the expected average cost per claim or the frequency rate for claims with payment would result in an approximate $45 million increase or decrease in BNSF’s recorded other personal injury reserves.

BNSF obtains quarterly actuarial updates for other personal injury liabilities and monitors actual experience against the number of forecasted claims to be received, the forecasted number of claims closing with payment and expected claims payments. Adjustments to the Company’s estimates are recorded quarterly as necessary or more frequently as new events or revised estimates develop.

The following table summarizes the activity in the Company’s accrued obligations for other personal injury matters (in millions):

At December 31, 2004 and 2003, $170 million and $182 million were included in current liabilities, respectively. BNSF’s liabilities for other personal injury claims are undiscounted. In addition, defense and processing costs, which are recorded on an as-reported basis, are not included in the recorded liability. The Company is substantially self-insured for other personal injury claims.

The following table summarizes information regarding personal injury claims, other than asbestos, filed against BNSF:

Because of the uncertainty surrounding the ultimate outcome of other personal injury claims, it is reasonably possible that future costs to settle other personal injury claims may range from approximately $400 million to $550 million. However, BNSF believes that the $459 million recorded is the best estimate of the Company’s future obligation for the settlement of other personal injury claims.

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The amounts recorded by BNSF for other personal injury claims were based upon currently known facts. Future events, such as the number of new claims to be filed each year, the average cost of disposing of claims, as well as the numerous uncertainties surrounding personal injury litigation in the United States, could cause the actual costs to be higher or lower than projected.

While the final outcome of these other personal injury matters cannot be predicted with certainty, considering among other things the meritorious legal defenses available and liabilities that have been recorded, it is the opinion of BNSF that none of these items, when finally resolved, will have a material adverse effect on the Company’s financial position or liquidity. However, should a number of these items occur in the same period, it could have a material adverse effect on the results of operations in a particular quarter or fiscal year.

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ENVIRONMENTAL

The Company’s operations, as well as those of its competitors, are subject to extensive federal, state and local environmental regulation. BNSF’s operating procedures include practices to protect the environment from the risks inherent in railroad operations, which frequently involve transporting chemicals and other hazardous materials. Additionally, many of BNSF’s land holdings are and have been used for industrial or transportation-related purposes or leased to commercial or industrial companies whose activities may have resulted in discharges onto the property. As a result, BNSF is subject to environmental cleanup and enforcement actions. In particular, the Federal Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA), also known as the Superfund law, as well as similar state laws generally impose joint and several liability for cleanup and enforcement costs on current and former owners and operators of a site without regard to fault or the legality of the original conduct. BNSF has been notified that it is a potentially responsible party (PRP) for study and cleanup costs at Superfund sites for which investigation and remediation payments are or will be made or are yet to be determined (the Superfund sites) and, in many instances, is one of several PRPs. In addition, BNSF may be considered a PRP under certain other laws. Accordingly, under CERCLA and other federal and state statutes, BNSF may be held jointly and severally liable for all environmental costs associated with a particular site. If there are other PRPs, BNSF generally participates in the cleanup of these sites through cost-sharing agreements with terms that vary from site to site. Costs are typically allocated based on such factors as relative volumetric contribution of material, the amount of time the site was owned or operated, and/or the portion of the total site owned or operated by each PRP.

Liabilities for environmental cleanup costs are recorded when BNSF’s liability for environmental cleanup is both probable and a reasonable estimate of associated loss can be made. Subsequent adjustments to initial estimates are recorded as necessary based upon additional information developed in subsequent periods. Environmental costs include initial site surveys and environmental studies as well as costs for remediation of sites determined to be contaminated.

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During the first half of 2004, the Company experienced a significant increase in expense relating to environmental remediation developments at known sites for which the majority of the contamination occurred decades ago. Because of these and other developments in recent periods, the Company performed an assessment to determine if it was feasible to better estimate developments at its known sites. The Company determined that a third party actuary had proprietary data that included information from the EPA and other governmental agencies as well as information accumulated from public sources and work performed for other clients. Because of its determination that a better estimate of future developments could be made with this data, BNSF engaged this third party actuary, which has extensive background in performing various studies for large companies, including environmental matters, to assist BNSF in determining its potential future environmental exposure at known sites. As a result of this study, the Company revised its estimate of its probable environmental losses and its accrued liabilities. Consequently, during 2004, BNSF recorded an undiscounted $172 million pre-tax charge related to its change in estimated environmental liabilities on a site by site basis. The $172 million pre-tax charge was recorded in materials and other expense and reduced net income by $106 million, or $0.28 per share, for 2004. The charge does not include (i) contaminated sites of which the Company is not aware, and (ii) additional amounts for third party claims, which arise out of contaminants allegedly migrating from BNSF property, due to a limited number of sites. BNSF continues to estimate third party claims on a site by site basis when the liability for such claims is probable and a reasonable estimate of associated loss can be made. BNSF’s recorded liability for third party claims as of December 31, 2004 is approximately $25 million.

The Company’s estimate of ultimate cost for clean up efforts at its known environmental sites utilizes BNSF’s historical payment patterns, its current estimated percentage to closure ratios, and the actuary’s proprietary benchmark patterns developed from data accumulated from public sources and work performed by it for other clients, including the EPA and other governmental agencies. These factors incorporate experience gained from clean up efforts at other similar sites into the estimates for which remediation and restoration efforts are still in progress. The most significant assumptions are: (i) historical payment patterns of site development, (ii) percentage to closure ratios, and (iii) variance from benchmark costs. A 10 percent change in any of these individual assumptions could result in an increase of up to $40 million or a decrease of up to $20 million in BNSF’s estimated environmental liability. BNSF also conducts an ongoing environmental contingency analysis, which considers a combination of factors including independent consulting reports, site visits, legal reviews and analysis of the likelihood of participation in, and the ability to pay for, cleanup of other PRPs.

BNSF anticipates obtaining annual updates of the study. On a quarterly basis, BNSF will also monitor actual experience against the forecasted remediation and related payments made on existing sites. Additionally, BNSF will continue its existing, quarterly process to monitor developments to further benchmark actuarial results. Adjustments to the Company’s estimates will continue to be recorded quarterly if necessary based upon developments in subsequent periods. More periodic updates to the study will occur if trends necessitate a change.

BNSF is involved in a number of administrative and judicial proceedings and other mandatory cleanup efforts for 384 sites, including Superfund sites, at which it is participating in the study or cleanup, or both, of alleged environmental contamination. The following table summarizes the activity in the Company’s accrued obligations for environmental matters (in millions):

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At December 31, 2004 and 2003, $60 million and $50 million were included in current liabilities, respectively. BNSF’s environmental liabilities are not discounted. BNSF anticipates that the majority of the accrued costs at December 31, 2004 will be paid over the next ten years and no individual site is considered to be material.

The following table summarizes the environmental sites:

Liabilities recorded for environmental costs represent BNSF’s best estimate of its probable future obligation for the remediation and settlement of these sites and include both asserted and unasserted claims. Unasserted claims are not a material component of the liability. Although recorded liabilities include BNSF’s best estimate of all probable costs, without reduction for anticipated recoveries from third parties, BNSF’s total cleanup costs at these sites cannot be predicted with certainty due to various factors such as the extent of corrective actions that may be required, evolving environmental laws and regulations, advances in environmental technology, the extent of other parties’ participation in cleanup efforts, developments in ongoing environmental analyses related to sites determined to be contaminated, and developments in environmental surveys and studies of contaminated sites.

Because of the uncertainty surrounding these factors, it is reasonably possible that future costs for environmental liabilities may range from approximately $300 million to $600 million. However, BNSF believes that the $385 million recorded is the best estimate of the Company’s future obligation for environmental costs.

While the final outcome of these environmental matters cannot be predicted with certainty, it is the opinion of BNSF that none of these items, when finally resolved, will have a material adverse effect on the Company’s financial position or liquidity. However, an unexpected adverse resolution of one or more of these items could have a material adverse effect on the results of operations in a particular quarter or fiscal year.

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OTHER CLAIMS AND LITIGATION

In addition to asbestos, other personal injury, and environmental matters discussed above, BNSF and its subsidiaries are also parties to a number of other legal actions and claims, various governmental proceedings and private civil suits arising in the ordinary course of business, including those related to disputes and complaints involving certain transportation rates and charges (including complaints seeking refunds of prior charges paid for coal transportation and the prescription of future rates for such movements). Some of the legal proceedings include claims for punitive as well as compensatory damages, and a few proceedings purport to be class actions. While the final outcome of these matters cannot be predicted with certainty, considering among other things the meritorious legal defenses available and liabilities that have been recorded along with applicable insurance, it is the opinion of BNSF that none of these items, when finally resolved, will have a material adverse effect on the Company’s financial position or liquidity. However, an unexpected adverse resolution of one or more of these items could have a material adverse effect on the results of operations in a particular quarter or fiscal year.

INCOME TAXES

BNSF is subject to various federal, state and local income taxes in the taxing jurisdictions where the Company operates. BNSF accounts for income taxes by providing for taxes payable or refundable in the current year and for deferred tax assets and liabilities for future tax consequences of events that have been recognized in financial statements or tax returns.

BNSF recorded total income tax expense, including federal, state and other income taxes, of $482 million, $454 million and $456 million for the years ended December 31, 2004, 2003 and 2002, respectively. BNSF’s Consolidated Balance Sheets reflect $308 million and $292 million of net current deferred tax assets at December 31, 2004 and 2003, respectively. Also included in BNSF’s Consolidated Balance Sheets are $7,820 million and $7,481 million of net non-current deferred tax liabilities at December 31, 2004 and 2003, respectively. Classification of deferred tax assets and liabilities as current or non-current is determined by the financial statement classification of the asset or liability to which the temporary difference is related. If a temporary difference is not related to an asset or liability for financial reporting, it is classified according to the expected reversal date of the temporary difference.

Valuation allowances are established to reduce deferred tax assets if it is more likely than not that some or all of the deferred tax asset will not be realized. BNSF has not recorded a valuation allowance, as it believes that the deferred tax assets will be fully realized in the future.

All federal income tax returns of BNSF’s predecessor companies, Burlington Northern Inc. and Santa Fe Pacific Corporation are closed through 1994 and the business combination date of September 1995, respectively. Internal Revenue Service examination of the years 1995 through 1999 for BNSF is completed and protests of the unagreed issues have been filed with IRS Appeals. BNSF is currently under examination for years 2000 through 2002. In addition, BNSF and its subsidiaries have various state income tax returns in the process of examination, administrative appeal or litigation. Due to the capital-intensive nature of BNSF’s business, a significant portion of the audit issues with the IRS and other taxing authorities relate to whether expenditures are classified as maintenance or capital and whether certain asset valuations are appropriate. A provision for taxes resulting from ongoing and future federal and state audits is based on an estimation of aggregate adjustments that may be required as a result of the audits. The Company believes that adequate provision has been made for any adjustment that might be assessed for open years through 2004.

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