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 *
DUGINSKI MICHAEL
  2. Issuer Name and Ticker or Trading Symbol
BERRY PETROLEUM CO [BRY]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Senior Vice President
(Last)
(First)
(Middle)
C/O BERRY PETROLEUM COMPANY, 5201 TRUXTUN AVE., SUITE 300
3. Date of Earliest Transaction (Month/Day/Year)
12/31/2004
(Street)

BAKERSFIELD, CA 93309
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
Class A Common Stock               4,850 D  
Class A Common Stock 12/31/2004(1)   J V 7 (1) D $ 0 (1) 2,537 I Held in 401(k) Plan

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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
Nonstatutory Stock Option (Right to Buy) NSO $ 14.89             02/01/2003 02/01/2012 Class A Common Stock 20,000   20,000 D  
Nonstatutory Stock Option (Right to Buy) NSO $ 16.5             12/06/2003 12/06/2012 Class A Common Stock 15,000   15,000 D  
Nonstatutory Stock Option (Right to Buy) NSO $ 19.94             12/05/2004 12/05/2013 Class A Common Stock 30,000   30,000 D  
Nonstatutory Stock Option (Right to Buy) NSO $ 43.16             11/23/2005 11/23/2014 Class A Common Stock 35,000   35,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
DUGINSKI MICHAEL
C/O BERRY PETROLEUM COMPANY
5201 TRUXTUN AVE., SUITE 300
BAKERSFIELD, CA 93309
      Senior Vice President  

Signatures

 Kenneth A. Olson under Power of Attorney on file   01/04/2005
**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) The change in the number of shares in the Berry Petroleum Company Common Stock Fund in the Company's 401(k) Plan is due to the required liquidation of shares to cover the required cash portion of the fund from November 24, 2004 through December 31, 2004. All transactions were at market and no discretionary transactions have occurred in the holdings of Company Stock in the 401(k) Plan during the period covered.

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