UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

September 15, 2005 (September 13, 2005)

CHESAPEAKE ENERGY CORPORATION

(Exact name of Registrant as specified in its Charter)

Oklahoma		1-13726		73-1395733
(State or other jurisdiction of incorporation)		(Commission File No.)		(IRS Employer Identification No.)

6100 North Western Avenue, Oklahoma City, Oklahoma		73118
(Address of principal executive offices)		(Zip Code)

(405) 848-8000

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

[_]	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[_]	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[_]	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act

(17 CFR 240.14d-2(b))

[_]	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act

(17 CFR 240.13e-4(c))

Section 5 – Corporate Governance and Management

Item 5.03 Amendments to Articles of Incorporation

Effective September 13, 2005, Chesapeake Energy Corporation (the “Company”) filed a Certificate of Designation with the Oklahoma Secretary of State for 3,450,000 shares of 4.50% Cumulative Convertible Preferred Stock. The Certificate of Designation is attached hereto as exhibit 3.1.

Section 9 – Financial Statements and Exhibits
Item 9.01 Final Statements and Exhibits

	(c)	Exhibits

Exhibit No.				Document Description

3.1			Certificate of Designation

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

CHESAPEAKE ENERGY CORPORATION

By:

/s/ Aubrey K. McClendon

Aubrey K. McClendon

Chairman of the Board and

Chief Executive Officer

Date:

September 15, 2005

EXHIBIT INDEX
Exhibit No.		Document Description

3.1		Certificate of Designation