UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                   FORM 8-K/A

                                 CURRENT REPORT

                         Pursuant to Section 13 or 15(d)
                                     of the
                         Securities Exchange Act of 1934



                Date of Report (Date of earliest event reported)
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                         April 25, 2005 (April 13, 2005)


                          CHESAPEAKE ENERGY CORPORATION
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             (Exact name of Registrant as specified in its Charter)


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


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


                                 (405) 848-8000
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              (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 3 - Securities and Trading Markets

Item 3.02 Unregistered Sales of Equity Securities.


     On April 13, 2005,  Chesapeake  Energy  Corporation (the "Company") filed a
Form 8-K  reporting  under  Item 8.01  Other  Events  that it had issued a press
release on April 13, 2005  announcing the pricing of a private  offering of $400
million of 5.00% cumulative  convertible  preferred stock. The press release was
attached to the Form 8-K as Exhibit 99.1.  The Form 8-K should have reported the
event under Item 3.02  Unregistered  Sales of Equity  Securities as well as Item
8.01. The following provides information about the offering.

     On April 14,  2005,  the Company  entered  into a purchase  agreement  with
Credit Suisse First Boston LLC, Banc of America  Securities LLC, Bear, Stearns &
Co. Inc., Lehman Brothers Inc. and Morgan Stanley & Co. Incorporated,  acting on
behalf of themselves  and as  representatives  of the several  other  purchasers
named therein (collectively, the "Initial Purchasers") for the purchase and sale
of up to 4,600,000 shares of the Company's 5% Cumulative  Convertible  Preferred
Stock (Series 2005),  $.01 par value and $100  liquidation  preference per share
(the  "Preferred  Stock").  The sale of  4,000,000  shares  of  Preferred  Stock
occurred on April 19,  2005,  and the sale of an  additional  600,000  shares of
Preferred Stock occurred on April 25, 2005 following the exercise by the Initial
Purchasers of an option to purchase such shares within 30 days  following  April
13, 2005.  The  discount to the Initial  Purchasers  was 2.75% plus  accumulated
dividends  from April 19, 2005.  The aggregate  offering price for the 4,600,000
shares of Preferred Stock was $460 million and the aggregate discount was $12.65
million.

     The Preferred Stock was sold by the Company to the Initial  Purchasers in a
private   placement  in  reliance  on  the  exemption   from  the   registration
requirements  of the  Securities  Act afforded by Section 4(2) of the Securities
Act for transactions by an issuer not involving any public offering. Each of the
Initial  Purchasers  represented  that it is an accredited  investor  within the
meaning of Regulation D under the Securities  Act. The Initial  Purchasers  have
each  represented and agreed that they have offered and sold, and will offer and
sell,  the  Preferred  Stock they acquire under the purchase  agreement  only in
accordance with Rule 144A under the Securities Act.

     Each share of Preferred  Stock is convertible at any time, at the option of
the holder, into 3.8811 shares of Chesapeake common stock in accordance with the
terms of the  Certificate of Designation  relating to the Preferred  Stock which
was filed by the Company with the Oklahoma Secretary of State on April 18, 2005.
The conversion rate is based on an initial conversion price of $25.766 per share
of common stock,  subject to adjustment  upon the occurrence of certain  events.
The  Preferred  Stock is subject to mandatory  conversion,  at the option of the
Company,  (1) on or after  April 15,  2010 at the then  conversion  price if the
closing price of the Common Stock is at least 130% of the  conversion  price for
at least 20 trading days during a period of 30 consecutive trading days, and (2)
on or after April 15, 2010,  if there are less than 250,000  shares of Preferred
Stock  outstanding at the time, at the then conversion  price, or, if lower, the
then current market price of the common stock.

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                                    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:         April 25, 2005

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