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 *
Ayers William B
   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 of Human Resources
(Last)
(First)
(Middle)
C/O BERRY PETROLEUM COMPANY, 1999 BROADWAY, SUITE 3700		 3. Date of Earliest Transaction (Month/Day/Year)
01/08/2013
(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 01/08/2013   M   12,333 (1) A $ 35.535 17,400 D  
Class A Common Stock 01/09/2013   S   560 (3) D $ 35.2182 16,840 D  
Class A Common Stock 01/09/2013   S   126 (3) D $ 35.22 16,714 D  
Class A Common Stock 01/09/2013   S   26 (3) D $ 35.23 16,688 D  
Class A Common Stock 01/09/2013   S   700 (3) D $ 35.26 15,988 D  
Class A Common Stock 01/09/2013   S   100 (3) D $ 35.27 15,888 D  
Class A Common Stock 01/09/2013   S   400 (3) D $ 35.3 15,488 D  
Class A Common Stock 01/09/2013   S   400 (3) D $ 32.32 15,088 D  
Class A Common Stock 01/09/2013   S   300 (3) D $ 35.33 14,788 D  
Class A Common Stock 01/09/2013   S   300 (3) D $ 35.35 14,488 D  
Class A Common Stock 01/09/2013   S   300 (3) D $ 35.37 14,188 D  
Class A Common Stock 01/09/2013   S   400 (3) D $ 35.38 13,788 D  
Class A Common Stock 01/09/2013   S   100 (3) D $ 35.4 13,688 D  

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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-Statutory Stock Option 5-18-06 $ 31.615             05/18/2007 05/17/2016 Class A Common Stock 10,000   10,000 D  
Nonstatutory Stock Option 12-15-06 $ 32.565             12/15/2007 12/14/2016 Class A Common Stock 5,000   5,000 D  
NSO 2007 $ 43.61             12/14/2008 12/13/2017 Class A Common Stock 6,880   6,880 D  
2009 Restricted Stock Units $ 0             12/11/2010 12/11/2019 Class A Common Stock 7,091   7,091 D  
Perf Based RSUs 3-16-10 $ 0             12/31/2012 12/31/2012 Class A Common Stock 3,004   3,004 D  
March 2011 Employee RSU Grant $ 0             03/02/2012 03/02/2021 Class A Common Stock 3,093   3,093 D  
Non-Statutory Stock Option 3-2-2011 - $48.50 $ 48.5             03/02/2014 03/02/2021 Class A Common Stock 2,367   2,367 D  
2008 Restricted Stock Units $ 0 01/08/2013   M     12,333 (2) 12/12/2009 12/11/2018 Class A Common Stock 12,333 $ 35.535 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Ayers William B
C/O BERRY PETROLEUM COMPANY
1999 BROADWAY, SUITE 3700
DENVER, CO 80202		       VP of Human Resources  

Signatures

 Kenneth A. Olson under POA for W. B. Ayers   01/09/2013
**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) Issuance of shares from previous RSU grant based on meeting terms and timing of deferral election.
(2) Issuance of 100% of RSU shares pursuant to a Rule 16b-3 Plan per deferral election in place at date of grant .
(3) Shares sold to cover tax liability of issuance of deferred RSU shares.

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