FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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 *   London Ryan C 2. Date of Event Requiring Statement (Month/Day/Year) 03/08/2013 3. Issuer Name and Ticker or Trading Symbol Matador Resources Co [MTDR] (Last) (First) (Middle) 5400 LBJ FREEWAY, SUITE 1500 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP and General Manager 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) DALLAS, TX 75240 6. Individual or Joint/Group Filing(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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 35,714 (1) (2) (3) D Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option	  (4)	05/21/2013	Common Stock	15,000	$ 13.33	D	Â
Employee Stock Option	  (5)	02/21/2020	Common Stock	10,000	$ 9	D	Â
Employee Stock Option	  (6)	04/15/2017	Common Stock	18,750	$ 10.49	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
London Ryan C 5400 LBJ FREEWAY SUITE 1500 DALLAS, TX 75240	Â	Â	  VP and General Manager	Â

Signatures

/s/ Ryan C. London		03/14/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	Includes 4,688 shares of restricted stock granted to the reporting person on April 16, 2012. Such shares of restricted stock will vest in two equal biennial installments beginning on the second anniversary of the date of grant, April 16, 2014.
(2)	Includes 4,688 shares of restricted stock granted to the reporting person on April 16, 2012. Such shares of restricted stock will vest following the third anniversary of the date of grant, April 16, 2015, in an amount to be determined based upon the achievement of certain performance conditions as specified in the reporting person's award agreement.
(3)	Includes 4,688 restricted stock units granted to the reporting person on April 16, 2012. Such restricted stock units will vest, and an applicable number of shares of common stock will be deliverable to the reporting person, following the third anniversary of the date of grant, April 16, 2015, in an amount to be determined based upon the achievement of certain performance conditions as specified in the reporting person's award agreement.
(4)	As of the date of this report, the stock options are fully vested and exercisable.
(5)	As of the date of this report, 7,500 of the stock options are vested and exercisable and the remaining 2,500 stock options will vest on February 22, 2014.
(6)	The stock options vest in two equal biennial installments beginning on the second anniversary of the date of grant, April 16, 2014.

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