SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT

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

                                October 30, 2007
                                 Date of Report



                               CIMAREX ENERGY CO.
             (Exact name of registrant as specified in its charter)


           Delaware                    001-31446                 45-0466694
(State or other jurisdiction    (Commission File Number)      (I.R.S. Employer
     of incorporation)                                       Identification No.)


   1700 Lincoln Street, Suite 1800, Denver, Colorado                  80203-4518
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         (Address of principal executive offices)                     (Zip Code)

Registrant's telephone number, including area code          303-295-3995
                                                  ------------------------------


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         (Former name or former address, if changed since last report.)


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:

|_|   Written communications pursuant to Rule 425 under the Securities Act

|_|   Soliciting material pursuant to Rule 14a-12 under the Exchange Act

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

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







ITEM 7.01    REGULATION FD DISCLOSURE

October 30, 2007, Cimarex Energy Co. (NYSE: XEC) issued a press release. A copy
of the news release is furnished as Exhibit 99.1 to this report.


ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

(d)    Exhibits

Exhibit No.                      Description

99.1        Press Release is furnished pursuant to Item 7.01.







                                   SIGNATURES


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.

                                      CIMAREX ENERGY CO.


Dated:   October 30, 2007             By: /s/ Paul Korus
                                          --------------------------------------
                                          Paul Korus, Vice President,
                                          Chief Financial Officer and Treasurer






EXHIBIT INDEX


Exhibit No.                          Description
-----------                          -----------

99.1                                Press Release