UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.     )
Filed by the Registrant  o
Filed by a Party other than the Registrant  o
Check the appropriate box:
o	Preliminary Proxy Statement
o	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o	Definitive Proxy Statement
x	Definitive Additional Materials
o	Soliciting Material Pursuant to §240.14a-12
Cimarex Energy Co.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box):
o	No fee required.
o	Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
	(1)		Title of each class of securities to which transaction applies:
	(2)		Aggregate number of securities to which transaction applies:
	(3)		Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
	(4)		Proposed maximum aggregate value of transaction:
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o	Fee paid previously with preliminary materials.
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	(2)	Form, Schedule or Registration Statement No.:
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	(4)	Date Filed:

 

 

	Cimarex Energy Co.
	1700 Lincoln Street, Suite 1800
	Denver, CO 80203-4518
	NOTICE OF ANNUAL MEETING
	OF STOCKHOLDERS
	to be held on
	May 19, 2010

 

Dear Stockholder,

 

The 2010 Annual Meeting of Stockholders of Cimarex Energy Co. will be held at the Doubletree Hotel, 616 West Seventh Street, Tulsa, Oklahoma 74127, on May 19, 2010, at 9:00 AM (Central time).

 

Proposals to be considered at the Annual Meeting:

 

(1)                                  Elect three Class II Directors for terms expiring in 2013.

 

(2)                                  In order to obtain the federal income tax deduction benefits under Section 162(m) of the Internal Revenue Code, approve a revision to the maximum number of shares that may be issued under Cimarex’s performance awards.

 

(3)                                  Ratify appointment of KPMG LLP as independent auditors for 2010.

 

We will also transact any other business as may properly come before the meeting or any adjournments thereof.

 

Management recommends a vote “FOR” Proposals 1, 2 and 3.

 

Stockholders are cordially invited to attend the Annual Meeting and vote in person.

 

You May Vote Your Proxy When You View The Material On The Internet. You Will Be Asked To

Follow The Prompts To Vote Your Shares.

 

Your electronic vote authorizes the named proxies to vote your shares in the same manner as if you marked, signed, dated and returned the proxy card.

 

	Vote Your Proxy on the Internet:
	Go to www.continentalstock.com
	Have your notice available when you
	Access the above website. Follow the
	Prompts to vote your shares.
	COMPANY ID:
	PROXY NUMBER:
	ACCOUNT NUMBER:

 

 

Cimarex Energy Co.

1700 Lincoln Street, Suite 1800, Denver, CO 80203-4518

 

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting of Stockholders to be held May 19, 2010.

 

The Proxy Statement and our 2009 Annual Report to Stockholders are Available at:  http://www.cstproxy.com/cimarex/2010

 

This communication presents only an overview of the more complete proxy materials that are available to you on the Internet.  We encourage you to access and review all of the important information contained in the proxy materials before voting.

 

If you would like to receive a paper or e-mail copy of these documents, you must request one.  There is no charge to mail these documents to you.  To facilitate a timely delivery, please follow the instructions below and request a copy on or before May 11, 2010.

 

The following Proxy Materials are available to you to review at:  http://www.cstproxy.com/cimarex/2010

 

·                                          the Company’s Annual Report for the year ending December 31, 2009.

·                                          the Company’s 2010 Proxy Statement.

·                                          the Proxy Card.

·                                          any amendments to the foregoing materials that are required to be furnished

To stockholders.

 

ACCESSING YOUR PROXY MATERIALS ONLINE

 

Have this notice available when you request a paper copy of the proxy materials or

to vote your proxy electronically, you must reference your company ID., 9-digit

proxy number and 10-digit account number.

 

REQUESTING A PAPER COPY OF THE PROXY MATERIALS

 

By telephone please call 1-888-221-0690,

or

By logging on to http://www.cstproxy.com/cimarex/2010

Or

By email at: proxy@continentalstock.com

 

Please include the company name and your account number in the subject line.