Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  BERKSHIRE HATHAWAY INC
 2. Date of Event Requiring Statement (Month/Day/Year)
04/03/2007		 3. Issuer Name and Ticker or Trading Symbol
BURLINGTON NORTHERN SANTA FE CORP [BNI]
(Last)
(First)
(Middle)
1440 KIEWIT PLAZA		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

OMAHA, NE 68131		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 37,380,530 (1) (2)
I
See footnotes 1 and 2

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
BERKSHIRE HATHAWAY INC
1440 KIEWIT PLAZA
OMAHA, NE 68131		     X    
BUFFETT WARREN E
1440 KIEWIT PLAZA
OMAHA, NE 68131		   X     Chairman and CEO  
OBH INC
1440 KIEWIT PLAZA
OMAHA, NE 68131		     X    

Signatures

Berkshire Hathaway Inc., by Marc D. Hamburg 04/06/2007
**Signature of Reporting Person Date
Warren E. Buffett 04/06/2007
**Signature of Reporting Person Date
OBH, Inc., by Marc D. Hamburg 04/06/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) These shares are owned by the following subsidiaries of Berkshire Hathaway Inc.: National Indemnity Company ("NICO") (12,758,030 shares); National Fire & Marine Insurance Company ("NFMIC") (1,322,100 shares); and Columbia Insurance Company ("Columbia") (23,300,400 shares). Each of NICO, NFMIC and Columbia is a subsidiary of OBH, Inc. ("OBH"). OBH is a subsidiary of Berkshire Hathaway Inc. ("Berkshire").
(2) (FN 1, contd.) As OBH and Berkshire are each in the chain of ownership of NICO, NFMIC and Columbia, each may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Common Stock presently owned by each subsidiary. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of Common Stock presently owned by each such subsidiary. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

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