Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL 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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1. Name and Address of Reporting Person *
WHITTEMORE FREDERICK B
2. Issuer Name and Ticker or Trading Symbol
CHESAPEAKE ENERGY CORP [CHK]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)

MORGAN STANLEY DEAN WITTER, 1221 AVENUE OF THE AMERICAS
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
12/31/2008
(Street)


NEW YORK, NY 10020
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(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 at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Stock 09/17/2008   S4 19,000 D $ 36.9508 (1) 767,790 D  
Common Stock 09/17/2008   S4 64,200 D $ 37.4678 (2) 703,590 D  
Common Stock 09/17/2008   S4 117,000 D $ 38.3879 (3) 586,590 D  
Common Stock 09/17/2008   S4 24,800 D $ 39.1935 (4) 561,790 D  
Common Stock 09/18/2008   S4 50,000 D $ 37.0829 (5) 511,790 D  
Common Stock 09/30/2008   S4 30,000 D $ 33.7784 (6) 481,790 D  
Common Stock 11/17/2008   S4 50,000 D $ 21.6076 (7) 231,790 D  
Common Stock             41,750 I by Family Foundation

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 2270 (9-02)

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 at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
WHITTEMORE FREDERICK B
MORGAN STANLEY DEAN WITTER
1221 AVENUE OF THE AMERICAS
NEW YORK, NY 10020
  X      

Signatures

By: Amy M. Sanders For: Frederick B. Whittemore 02/12/2009
**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) This transaction was executed in multiple trades at prices ranging from $36.89 to $36.9995. The price reported above reflects the weighted average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(2) This transaction was executed in multiple trades at prices ranging from $37.00 to $37.9905. The price reported above reflects the weighted average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(3) This transaction was executed in multiple trades at prices ranging from $38.0007 to $38.897. The price reported above reflects the weighted average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(4) This transaction was executed in multiple trades at prices ranging from $39.0442 to $39.36. The price reported above reflects the weighted average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(5) This transaction was executed in multiple trades at prices ranging from $37.00 to $37.27. The price reported above reflects the weighted average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(6) This transaction was executed in multiple trades at prices ranging from $33.73 to $33.8056. The price reported above reflects the weighted average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
(7) This transaction was executed in multiple trades at prices ranging from $21.57 to $21.67. The price reported above reflects the weighted average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Note: File three copies of this Form, one of which must be manually signed. If space provided is insufficient, see Instruction 6 for procedure.

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