UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	May 9, 2013 4:00 P.M.

Form:	S-3
CIK: 0001520006 Company Name: Matador Resources Co File Number: 333-187808
CIK: 0001573492 Company Name: MRC Permian Co File Number: 333-187808-06
CIK: 0001573487 Company Name: MRC Rockies Co File Number: 333-187808-05
CIK: 0001260979 Company Name: MRC Energy Co File Number: 333-187808-04
CIK: 0001573486 Company Name: Matador Production Co File Number: 333-187808-03
CIK: 0001573488 Company Name: Longwood Gathering & Disposal Systems, LP File Number: 333-187808-02
CIK: 0001573491 Company Name: Longwood Gathering & Disposal Systems GP, Inc. File Number: 333-187808-01