Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
JONES MARY S
  2. Issuer Name and Ticker or Trading Symbol
UNION PACIFIC CORP [UNP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP & TREASURER UPC
(Last)
(First)
(Middle)
1400 DOUGLAS STREET
3. Date of Earliest Transaction (Month/Day/Year)
01/29/2007
(Street)

OMAHA, NE 68179
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 01/29/2007   F   117 D $ 95.74 30,887 D  
Common Stock (1) 01/29/2007   F   34 D $ 95.74 30,853 D  
Common Stock (2) 01/30/2007   A   687 A $ 0 31,540 D  
Common Stock (3) 01/30/2007   A   1,548 A $ 0 33,088 D  
Common Stock (4)               752.901 I by Managed Account

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) (5) $ 96.98 01/30/2007   A   5,967   01/30/2008(5) 01/30/2017 Common Stock 5,967 $ 0 5,967 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
JONES MARY S
1400 DOUGLAS STREET
OMAHA, NE 68179
      VP & TREASURER UPC  

Signatures

 By: Trevor L. Kingston, Attorney-in-Fact For: Mary S. Jones   01/31/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) Transfer of shares for additional tax withholding purposes.
(2) Retention unit award with a distribution ratio of 1:1. This award is payable only in shares of common stock with a four year vesting period from grant date.
(3) Performance retention unit award with a distribution ratio of 1:1. This award is payable only in shares of common stock with a three year vesting period from the grant date. The amount of shares in column 4 is the maximum number of shares that the reporting person is eligible to receive. The actual number of shares paid out at vesting, if any, depends on applicable performance criteria being met.
(4) Includes holdings in Union Pacific's Payroll-based and Tax-reduction stock ownership plans and 401(k) plan as of Transaction Date.
(5) This option becomes exercisable in three equal installments starting one year from the grant date.

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