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 *
O'Connor Davis O
   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)
VP General Counsel Secretary
(Last)
(First)
(Middle)
1999 BROADWAY, SUITE 3700		 3. Date of Earliest Transaction (Month/Day/Year)
03/04/2013
(Street)

DENVER, CO 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 03/04/2013   M   1,289 (1) A $ 45.8 2,123 D  
Class A Common Stock 03/04/2013   M   1,591 (1) A $ 45.8 3,714 D  
Class A Common Stock 03/04/2013   S   111 D $ 45.621 3,603 D  
Class A Common Stock 03/04/2013   S   200 D $ 45.651 3,403 D  
Class A Common Stock 03/04/2013   S   100 D $ 45.656 3,303 D  
Class A Common Stock 03/04/2013   S   100 D $ 45.657 3,203 D  
Class A Common Stock 03/04/2013   S   200 D $ 45.66 3,003 D  
Class A Common Stock 03/04/2013   S   100 D $ 45.664 2,903 D  
Class A Common Stock 03/04/2013   S   120 D $ 45.68 2,783 D  

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
Restricted Stock Unit $ 0             10/15/2013 10/15/2020 Class A Common Stock 14,908   14,908 D  
Non-Statutory Stock Option 3-2-2011 - $48.50 $ 48.5             03/02/2012 03/02/2021 Class A Common Stock 5,916   5,916 D  
Perf Based RSU 3-2-2011 $ 0             12/31/2013 03/02/2021 Class A Common Stock 4,510   4,510 D  
Non Statutory Stock Option 3-2-12 $ 53.02             03/02/2013 03/02/2022 Class A Common Stock 7,514   7,514 D  
Perf Based RSUs 3-2-12 $ 0             12/31/2014 03/02/2022 Class A Common Stock 5,569   5,569 D  
March 4, 2013 Employee RSU Grant (2) $ 0 (3) 03/04/2013   M   19,544 (4)   03/04/2014 03/04/2023 Class A Common Stock 19,544 $ 0 19,544 D  
March 2, 2012 Employee RSU Grant $ 0 03/04/2013   M     1,289 (1) 03/02/2013 03/02/2022 Class A Common Stock 6,366 $ 45.8 5,077 D  
March 2011 Employee RSU Grant $ 0 03/04/2013   M     1,591 (1) 03/02/2012 03/02/2021 Class A Common Stock 3,867 $ 45.8 2,276 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
O'Connor Davis O
1999 BROADWAY, SUITE 3700
DENVER, CO 80202		       VP General Counsel Secretary  

Signatures

 Kenneth A. Olson under POA for Davis O'Connor   03/06/2013
**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) Vested shares issued pursuant to Rule 16b-3 plan.
(2) 1 for 1
(3) Each RSU represents a contingent right to receive one share of Berry Petroleum Company Class A Common Stock
(4) Grant of Restricted Stock Unit (RSU) under the Company's 2010 Equity Incentive Plan in a transaction exempt under Rule 16b-3(c). RSUs vest 25% per year from date of grant.

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