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 * JAMIESON THOMAS J   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 _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O BERRY PETROLEUM COMPANY, 1999 BROADWAY, SUITE 3700 3. Date of Earliest Transaction (Month/Day/Year) 12/31/2009 (Street) DENVER, CA 80202 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               33,800 I Owned by corporation Class A Common Stock               48,000 D   Class A Common Stock               25,000 I Owned by partnership Class A Common Stock               138,062 I Owned by Trust

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

Nonstatutory Stock Options 12-2-2000

$ 7.8438

12/02/2000

12/02/2010

Class A Common Stock

10,000

10,000

D

Nonstatutory Stock Options 12-2-01

$ 7.725

12/02/2001

12/02/2011

Class A Common Stock

10,000

10,000

D

Nonstatutory Stock Options 12-2-02

$ 8.07

12/02/2002

12/02/2012

Class A Common Stock

10,000

10,000

D

Nonstatutory Stock Options 12-2-03

$ 9.61

12/02/2003

12/02/2013

Class A Common Stock

10,000

10,000

D

Nonstatutory Stock Options 12-2-04

$ 21.77

12/02/2004

12/02/2014

Class A Common Stock

10,000

10,000

D

Nonstatutory Stock Option 12-15-05

$ 30.645

12/15/2005

12/15/2015

Class A Common Stock

10,000

10,000

D

Nonstatutory Stock Option 12-15-06

$ 32.565

12/15/2006

12/14/2016

Class A Common Stock

10,000

10,000

D

2007 Restricted Stock Unit (1)

$ 0

01/01/2008(2)

12/13/2017(3)

Class A Common Stock

1,319

1,319

D

NSO 2007

$ 43.61

12/14/2007

12/13/2017

Class A Common Stock

3,956

3,956

D

Phantom Stock Units

$ 0 (4)

12/31/2009

A

694 (5)

08/08/1988

08/08/1988

Class A Common Stock

55,757

$ 29.15

56,451

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
JAMIESON THOMAS J C/O BERRY PETROLEUM COMPANY 1999 BROADWAY, SUITE 3700 DENVER, CA 80202

Signatures

Kenneth A Olson under POA for Thomas Jamieson		01/04/2010
**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)	1 for 1
(2)	The RSU granted is 100% vested at the date of grant but the receipt of shares are subject to a deferral period which is generally at least four years from the grant date as per the deferral election.
(3)	The RSU is subject to a deferral election. Shares of Class A Common Stock will be delivered to the reporting person as per the terms of the deferral election.
(4)	Phantom Stock Units acquired under the Company's Non-Employee Director Deferred Compensation Plan in a transaction exempt under Rule 16b-3(c). Shares of Common Stock are issued under terms of the Plan upon resignation from the board of directors.
(5)	Phantom Stock Units acquired under the Company's Non-Employee Director Deferred Compensation Plan in a transaction exempt under Rule 16b-3(c). Shares of Common Stock are issued under terms of the Plan upon resignation from the board of directors.

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