EX-4.2



 Exhibit 4.2 

Execution Version 

$400,000,000 
 MATADOR
RESOURCES COMPANY 
 6.875% SENIOR NOTES DUE 2023 

REGISTRATION RIGHTS AGREEMENT 

April 14, 2015 
 MERRILL
LYNCH, PIERCE, FENNER & SMITH 

                         
INCORPORATED 
 As Representative of the Initial Purchasers 

c/o Merrill Lynch, Pierce, Fenner & Smith 

                          
 Incorporated 
 One Bryant Park 
 New York, New York 10036

 Ladies and Gentlemen: 
 Matador
Resources Company, a Texas corporation (the “Issuer”), proposes to issue and sell to Merrill Lynch, Pierce, Fenner & Smith Incorporated and the other several Initial Purchasers named in Schedule A to the Purchase Agreement
(as defined below) (collectively, the “Initial Purchasers”), upon the terms set forth in a purchase agreement dated April 9, 2015 (the “Purchase Agreement”), $400,000,000 aggregate principal amount of its
6.875% Senior Notes due 2023 (the “Initial Securities”) to be unconditionally guaranteed (the “Guarantees”) by certain of the Issuer’s subsidiaries who are signatories hereto as guarantors (collectively, the
“Guarantors” and together with the Issuer, the “Company”). The Initial Securities will be issued pursuant to an Indenture, dated as of April 14, 2015 (the “Indenture”), by and among the Issuer,
the Guarantors named therein and Wells Fargo Bank, National Association (the “Trustee”). As an inducement to the Initial Purchasers, the Company agrees with the Initial Purchasers, for the benefit of the holders of the Initial
Securities (including, without limitation, the Initial Purchasers), the Exchange Securities (as defined below) and the Private Exchange Securities (as defined below) (collectively, the “Holders”), as follows:  

1. Registered Exchange Offer. The Company shall, at its own cost, prepare and file with the Securities and Exchange Commission (the
“Commission”) a registration statement (the “Exchange Offer Registration Statement”) on an appropriate form under the Securities Act of 1933, as amended (the “Securities Act”), with respect to a
proposed offer (the “Registered Exchange Offer”) to the Holders of Transfer Restricted Securities (as defined in Section 6(d) hereof), who are not prohibited by any law or policy of the Commission from participating in
the Registered Exchange Offer, to issue and deliver to such Holders, in exchange for the Initial Securities, a like aggregate principal amount of debt securities (the “Exchange Securities”) of 

  
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the Company issued under the Indenture and identical in all material respects to the Initial Securities (except for the transfer restrictions relating to the Initial Securities and the provisions
relating to the matters described in Section 6(d) hereof) that would be registered under the Securities Act. The Company shall use its reasonable best efforts to cause such Exchange Offer Registration Statement to be declared effective
under the Securities Act and shall keep the Registered Exchange Offer open for not less than 20 business days (or longer, if required by applicable law) after the date notice of the Registered Exchange Offer is mailed to the Holders. 

If the Company commences the Registered Exchange Offer, the Company will be entitled to close the Registered Exchange Offer 30 days after the
commencement thereof; provided, that the Company has accepted all the Initial Securities theretofore validly tendered, and not withdrawn, in accordance with the terms of the Registered Exchange Offer. 

Following the declaration of the effectiveness of the Exchange Offer Registration Statement, the Company shall promptly commence the
Registered Exchange Offer, it being the objective of such Registered Exchange Offer to enable each Holder of Transfer Restricted Securities electing to exchange the Initial Securities for Exchange Securities (assuming that such Holder is not an
affiliate of the Company within the meaning of the Securities Act, acquires the Exchange Securities in the ordinary course of such Holder’s business and has no arrangements or understanding with any person to participate in the distribution of
the Exchange Securities and is not prohibited by any law or policy of the Commission from participating in the Registered Exchange Offer) to trade such Exchange Securities from and after their receipt without any limitations or restrictions under
the Securities Act and without material restrictions under the securities laws of the several states of the United States; provided, however, that the Exchanging Dealers (as defined below) will be required to deliver a prospectus in
connection with resales of Exchange Securities.  
 The Company acknowledges that, pursuant to current interpretations by the
Commission’s staff of Section 5 of the Securities Act, in the absence of an applicable exemption therefrom, (i) each Holder which is a broker-dealer electing to exchange Initial Securities, acquired for its own account as a result of
market making activities or other trading activities, for Exchange Securities (an “Exchanging Dealer”), is required to deliver a prospectus containing the information set forth in (a) Annex A hereto on the cover,
(b) Annex B hereto in the “Exchange Offer Procedures” section and the “Purpose of the Exchange Offer” section, and (c) Annex C hereto in the “Plan of Distribution” section of such prospectus in
connection with a sale of any such Exchange Securities received by such Exchanging Dealer pursuant to the Registered Exchange Offer and (ii) an Initial Purchaser that elects to sell Exchange Securities acquired in exchange for Initial
Securities constituting any portion of an unsold allotment is required to deliver a prospectus containing the information required by Items 507 or 508 of Regulation S-K under the Securities Act, as applicable, in connection with such sale. 

 The Company shall use its reasonable best efforts to keep the Exchange Offer Registration Statement effective and to amend and
supplement the prospectus contained therein, in order to permit such prospectus to be lawfully delivered by all persons subject to the prospectus delivery requirements of the Securities Act for such period of time as such persons must comply with
such requirements in order to resell the Exchange Securities; provided, however, that (i) in the case where such prospectus and any amendment or supplement thereto 

  
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must be delivered by an Exchanging Dealer or an Initial Purchaser, such period shall be the lesser of 180 days and the date on which all Exchanging Dealers and the Initial Purchasers have sold
all Exchange Securities held by them (unless such period is extended pursuant to Section 3(j) below) and (ii) the Company shall make such prospectus and any amendment or supplement thereto, available to any broker-dealer for use in
connection with any resale of any Exchange Securities for a period of not less than 180 days after the consummation of the Registered Exchange Offer. 

If, upon consummation of the Registered Exchange Offer, any Initial Purchaser holds Initial Securities acquired by it as part of its
initial distribution, the Company, simultaneously with the delivery of the Exchange Securities pursuant to the Registered Exchange Offer, shall issue and deliver to such Initial Purchaser upon the written request of such Initial Purchaser, in
exchange (the “Private Exchange”) for the Initial Securities held by such Initial Purchaser, a like principal amount of debt securities of the Company issued under the Indenture and identical in all material respects (including the
existence of restrictions on transfer under the Securities Act and the securities laws of the several states of the United States, but excluding provisions relating to the matters described in Section 6 hereof) to the Initial Securities
(the “Private Exchange Securities”). The Initial Securities, the Exchange Securities and the Private Exchange Securities are herein collectively called the “Securities.”  

In connection with the Registered Exchange Offer, the Company shall: 

(a) deliver to each Holder a copy of the prospectus forming part of the Exchange Offer Registration Statement, together with an
appropriate Letter of Transmittal and related documents; 
 (b) keep the Registered Exchange Offer open for not less than 20
business days (or longer, if required by applicable law) after the date notice thereof is mailed to the Holders; 
 (c)
utilize the services of a depositary for the Registered Exchange Offer, which may be the Trustee or an affiliate of the Trustee; 

(d) permit Holders to withdraw tendered Securities at any time prior to the close of business, New York time, on the last
business day on which the Registered Exchange Offer shall remain open; and 
 (e) otherwise comply with all applicable laws.

 As soon as practicable after the close of the Registered Exchange Offer or the Private Exchange, as the case may be, the Company shall:

 (x) accept for exchange all the Securities validly tendered and not withdrawn pursuant to the Registered Exchange Offer
and the Private Exchange; and 
 (y) cause the Trustee to deliver promptly to each Holder of the Initial Securities, Exchange
Securities or Private Exchange Securities, as the case may be, equal in principal amount to the Initial Securities of such Holder so accepted for exchange. 

  
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 The Indenture will provide that the Exchange Securities will not be subject to the transfer
restrictions set forth in the Indenture and that all the Securities will vote and consent together on all matters as one class and that none of the Securities will have the right to vote or consent as a class separate from one another on any matter.

 Interest on each Exchange Security and Private Exchange Security issued pursuant to the Registered Exchange Offer and in the
Private Exchange will accrue from the last interest payment date on which interest was paid on the Initial Securities surrendered in exchange therefor or, if no interest has been paid on the Initial Securities, from the date of original issue of the
Initial Securities (the “Issue Date”).  
 Each Holder participating in the Registered Exchange Offer shall be
required to represent to the Company that at the time of the consummation of the Registered Exchange Offer (i) any Exchange Securities received by such Holder will be acquired in the ordinary course of its business, (ii) such Holder has no
arrangements or understanding with any person to participate in the distribution of the Securities or the Exchange Securities within the meaning of the Securities Act, (iii) such Holder is not an “affiliate,” as defined in
Rule 405 of the Securities Act, of the Company or if it is an affiliate, such Holder will comply with the registration and prospectus delivery requirements of the Securities Act to the extent applicable, (iv) if such Holder is not a
broker-dealer, that it is not engaged in, and does not intend to engage in, the distribution of the Exchange Securities and (v) if such Holder is a broker-dealer, that it will receive Exchange Securities for its own account in exchange for
Initial Securities that were acquired as a result of market-making activities or other trading activities and that it will be required to acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Securities. 

Notwithstanding any other provisions hereof, the Company will ensure that (i) any Exchange Offer Registration Statement and any amendment
thereto and any prospectus forming part thereof and any supplement thereto comply in all material respects with the Securities Act and the rules and regulations thereunder, (ii) any Exchange Offer Registration Statement and any amendment
thereto do not, when they become effective, contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading and (iii) any prospectus
forming part of any Exchange Offer Registration Statement, and any supplement to such prospectus, do not include an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the
statements therein, in the light of the circumstances under which they were made, not misleading. 
 2. Shelf Registration. If,
(i) because of any change in law or in applicable interpretations thereof by the staff of the Commission, the Company is not permitted to effect a Registered Exchange Offer, as contemplated by Section 1 hereof, (ii) the
Registered Exchange Offer is not consummated within 365 days of the Issue Date, (iii) any Initial Purchaser so requests with respect to the Initial Securities (or the Private Exchange Securities) not eligible to be exchanged for Exchange
Securities in the Registered Exchange Offer and held by it following consummation of the Registered Exchange Offer or (iv) any Holder (other than an Exchanging Dealer) is not eligible to participate in the Registered Exchange Offer or, in the
case of any Holder (other than an Exchanging Dealer) that participates in the Registered Exchange Offer, such Holder does not receive freely tradeable Exchange Securities on the date of the exchange, the Company shall take the following actions:

 (a) The Company shall, at its cost, as promptly as practicable (but in no event more than 30 days after so required or
requested pursuant to this Section 2) file with the Commission and thereafter shall use its reasonable best efforts to cause to be declared effective (unless it becomes effective automatically upon filing) a registration statement (the
“Shelf Registration Statement” and, together with the Exchange Offer Registration Statement, a “Registration Statement”) on an appropriate form under the Securities Act relating to the offer and sale of the Transfer
Restricted Securities by the Holders thereof from time to time in accordance with the methods of distribution set forth in the Shelf Registration Statement and Rule 415 under the Securities Act (hereinafter, the “Shelf
Registration”) on or prior to the 365th day following the Issue Date in the case of clauses (i) or (ii) above and on or prior to the 180th day after the date on which the Shelf Registration Statement is required to be filed in the
case of clauses (iii) and (iv) above; provided, however, that no Holder (other than an Initial Purchaser) shall be entitled to have the Securities held by it covered by such Shelf Registration Statement unless such Holder agrees in
writing to be bound by all the provisions of this Agreement applicable to such Holder. 

  
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 (b) The Company shall use its reasonable best efforts to keep the Shelf
Registration Statement continuously effective, in order to permit the prospectus included therein to be lawfully delivered by the Holders of the relevant Securities, for a period of two years (or for such longer period if extended pursuant to
Section 3(j) below) from the date of its effectiveness or such shorter period that will terminate when all the Securities covered by the Shelf Registration Statement (i) have been sold pursuant thereto or (ii) may be sold
without any limitations by non-affiliates of the Company under clause (d)(1)(i) of Rule 144 under the Securities Act, or any successor rule thereof, provided, however, that the six month period shall be replaced with one year (the
“Shelf Registration Period”). The Company shall be deemed not to have used its reasonable best efforts to keep the Shelf Registration Statement effective during the Shelf Registration Period if it voluntarily takes any action that
would result in Holders of Securities covered thereby not being able to offer and sell such Securities during that period, unless such action is required by applicable law. 

(c) Notwithstanding any other provisions of this Agreement to the contrary, the Company shall cause (i) the Shelf
Registration Statement and any amendment thereto and any related prospectus and any supplement thereto, as of the effective date of the Shelf Registration Statement, amendment or supplement, to comply in all material respects with the Securities Act
and the rules and regulations thereunder, (ii) the Shelf Registration Statement and any amendment thereto not to contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in
order to make the statements therein not misleading and (iii) the prospectus related to the Shelf Registration Statement, and any supplement to such prospectus, not to include an untrue statement of a material fact or omit to state a material
fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. 

  
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 3. Registration Procedures. In connection with any Shelf Registration contemplated by
Section 2 hereof and, to the extent applicable, any Registered Exchange Offer contemplated by Section 1 hereof, the following provisions shall apply: 

(a) The Company shall (i) furnish to each Initial Purchaser, prior to the filing thereof with the Commission, a copy of
the Registration Statement and each amendment thereof and each supplement, if any, to the prospectus included therein and, in the event that an Initial Purchaser (with respect to any portion of an unsold allotment from the original offering) is
participating in the Registered Exchange Offer or the Shelf Registration Statement, the Company shall use its reasonable best efforts to reflect in each such document, when so filed with the Commission, such comments as such Initial Purchaser
reasonably may propose; (ii) include the information set forth in Annex A hereto on the cover, in Annex B hereto in the “Exchange Offer Procedures” section and the “Purpose of the Exchange Offer” section and in
Annex C hereto in the “Plan of Distribution” section of the prospectus forming a part of the Exchange Offer Registration Statement and include the information set forth in Annex D hereto in the Letter of Transmittal delivered
pursuant to the Registered Exchange Offer; (iii) if requested by an Initial Purchaser, include the information required by Items 507 or 508 of Regulation S-K under the Securities Act, as applicable, in the prospectus forming a part of the
Exchange Offer Registration Statement; (iv) include within the prospectus contained in the Exchange Offer Registration Statement a section entitled “Plan of Distribution,” reasonably acceptable to the Initial Purchasers, which shall
contain a summary statement of the positions taken or policies made by the staff of the Commission with respect to the potential “underwriter” status of any broker-dealer that is the beneficial owner (as defined in Rule 13d-3 under the
Securities Exchange Act of 1934, as amended (the “Exchange Act”)) of Exchange Securities received by such broker-dealer in the Registered Exchange Offer (a “Participating Broker-Dealer”), whether such positions or
policies have been publicly disseminated by the staff of the Commission or such positions or policies, in the reasonable judgment of the Initial Purchasers based upon advice of counsel (which may be in-house counsel), represent the prevailing views
of the staff of the Commission; and (v) in the case of a Shelf Registration Statement, include in the prospectus included in the Shelf Registration Statement (or, if permitted by Commission Rule 430B(b), in a prospectus supplement that becomes
a part thereof pursuant to Commission Rule 430B(f)) that is delivered to any Holder pursuant to Section 3(d) and (f), the names of the Holders, who propose to sell Securities pursuant to the Shelf Registration Statement, as
selling securityholders. 
 (b) The Company shall give written notice to the Initial Purchasers, the Holders of the
Securities proposed to be sold under the Shelf Registration Statement and any Participating Broker-Dealer from whom the Company has received prior written notice that it will be a Participating Broker-Dealer in the Registered Exchange Offer (which
notice pursuant to clauses (ii)-(v) hereof shall be accompanied by an instruction to suspend the use of the prospectus until the requisite changes have been made): 

(i) when the Registration Statement or any amendment thereto has been filed with the Commission and when the Registration
Statement or any post-effective amendment thereto has become effective; 

  
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 (ii) of any request by the Commission for amendments or supplements to the
Registration Statement or the prospectus included therein or for additional information; 
 (iii) of the issuance by the
Commission of any stop order suspending the effectiveness of the Registration Statement or the initiation of any proceedings for that purpose, of the issuance by the Commission of a notification of objection to the use of the form on which the
Registration Statement has been filed, and of the happening of any event that causes the Company to become an “ineligible issuer,” as defined in Commission Rule 405; 

(iv) of the receipt by the Company or its legal counsel of any notification with respect to the suspension of the qualification
of the Securities for sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; and 

(v) of the happening of any event that requires the Company to make changes in the Registration Statement or the prospectus in
order that the Registration Statement or the prospectus do not contain an untrue statement of a material fact nor omit to state a material fact required to be stated therein or necessary to make the statements therein (in the case of the prospectus,
in light of the circumstances under which they were made) not misleading. 
 (c) The Company shall make every reasonable
effort to obtain the withdrawal at the earliest possible time, of any order suspending the effectiveness of the Registration Statement. 

(d) The Company shall furnish to each Holder of Securities included within the coverage of the Shelf Registration, without
charge, at least one copy of the Shelf Registration Statement and any post-effective amendment or supplement thereto, including financial statements and schedules, and, if the Holder so requests in writing, all exhibits thereto (including those, if
any, incorporated by reference). The Company shall not, without the prior consent of the Initial Purchasers, make any offer relating to the Securities that would constitute a “free writing prospectus,” as defined in Commission Rule 405.

 (e) The Company shall deliver to each Initial Purchaser, and to any other Holder who so requests, without charge, at least
one copy of the Exchange Offer Registration Statement and any post-effective amendment thereto, including financial statements and schedules, and, if any Initial Purchaser or any such Holder requests, all exhibits thereto (including those
incorporated by reference). 
 (f) The Company shall, during the Shelf Registration Period, deliver to each Holder of
Securities included within the coverage of the Shelf Registration, without charge, as many copies of the prospectus (including each preliminary prospectus) included in the Shelf Registration Statement and any amendment or supplement thereto as such
person may reasonably request. The Company consents, subject to the provisions 

  
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of this Agreement, to the use of the prospectus or any amendment or supplement thereto by each of the selling Holders of the Securities in connection with the offering and sale of the Securities
covered by the prospectus, or any amendment or supplement thereto, included in the Shelf Registration Statement. 
 (g) The
Company shall deliver to each Initial Purchaser, any Exchanging Dealer, any Participating Broker-Dealer and such other persons required to deliver a prospectus following the Registered Exchange Offer, without charge, as many copies of the final
prospectus included in the Exchange Offer Registration Statement and any amendment or supplement thereto as such persons may reasonably request. The Company consents, subject to the provisions of this Agreement, to the use of the prospectus or any
amendment or supplement thereto by any Initial Purchaser, if necessary, any Participating Broker-Dealer and such other persons required to deliver a prospectus following the Registered Exchange Offer in connection with the offering and sale of the
Exchange Securities covered by the prospectus, or any amendment or supplement thereto, included in such Exchange Offer Registration Statement. 

(h) Prior to any public offering of the Securities, pursuant to any Registration Statement, the Company shall register or
qualify or cooperate with the Holders of the Securities included therein and their respective counsel in connection with the registration or qualification of the Securities for offer and sale under the securities or “blue sky” laws of such
states of the United States as any Holder of the Securities reasonably requests in writing and do any and all other acts or things reasonably necessary or advisable to enable the offer and sale in such jurisdictions of the Securities covered by such
Registration Statement; provided, however, that the Company shall not be required to (i) qualify generally to do business in any jurisdiction where it is not then so qualified or (ii) take any action which would subject it to
general service of process or to taxation in any jurisdiction where it is not then so subject. 
 (i) To the extent the
Securities are not in book-entry form, the Company shall cooperate with the Holders of the Securities to facilitate the timely preparation and delivery of certificates representing the Securities to be sold pursuant to any Registration Statement
free of any restrictive legends and in such denominations and registered in such names as the Holders may request a reasonable period of time prior to sales of the Securities pursuant to such Registration Statement. 

(j) Upon the occurrence of any event contemplated by clauses (ii) through (v) of Section 3(b) above
during the period for which the Company is required to maintain an effective Registration Statement, the Company shall promptly prepare and file a post-effective amendment to the Registration Statement or a supplement to the related prospectus and
any other required document so that, as thereafter delivered to Holders of the Securities or purchasers of Securities, the prospectus will not contain an untrue statement of a material fact or omit to state any material fact required to be stated
therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. If the Company notifies the Initial Purchasers, the Holders of the Securities and any known Participating Broker-Dealer in
accordance with clauses (ii) through (v) of Section 3(b) above to suspend the use of the prospectus until 

  
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the requisite changes to the prospectus have been made, then the Initial Purchasers, the Holders of the Securities and any such Participating Broker-Dealers shall suspend use of such prospectus,
and the period of effectiveness of the Shelf Registration Statement provided for in Section 2(b) above and the Exchange Offer Registration Statement provided for in Section 1 above shall each be extended by the number of days
from and including the date of the giving of such notice to and including the date when the Initial Purchasers, the Holders of the Securities and any known Participating Broker-Dealer shall have received such amended or supplemented prospectus
pursuant to this Section 3(j). During the period during which the Company is required to maintain an effective Shelf Registration Statement pursuant to this Agreement, the Company will prior to the three-year expiration of that Shelf
Registration Statement file, and use its reasonable best efforts to cause to be declared effective (unless it becomes effective automatically upon filing) within a period that avoids any interruption in the ability of Holders of Securities covered
by the expiring Shelf Registration Statement to make registered dispositions, a new registration statement relating to the Securities, which shall be deemed the “Shelf Registration Statement” for purposes of this Agreement. 

(k) Not later than the effective date of the applicable Registration Statement, the Company will provide a CUSIP number for the
Initial Securities, the Exchange Securities or the Private Exchange Securities, as the case may be, and provide the Trustee with certificates for the Initial Securities, the Exchange Securities or the Private Exchange Securities, as the case may be,
in a form eligible for deposit with The Depository Trust Company. 
 (l) The Company will comply with all rules and
regulations of the Commission to the extent and so long as they are applicable to the Registered Exchange Offer or the Shelf Registration and will make generally available to its security holders (or otherwise provide in accordance with
Section 11(a) of the Securities Act) an earnings statement satisfying the provisions of Section 11(a) of the Securities Act, no later than 45 days after the end of a 12-month period (or 90 days, if such period is a fiscal year) beginning
with the first month of the Company’s first fiscal quarter commencing after the effective date of the Registration Statement, which statement shall cover such 12-month period. 

(m) The Company shall cause the Indenture to be qualified under the Trust Indenture Act of 1939, as amended, in a timely manner
and containing such changes, if any, as shall be necessary for such qualification. In the event that such qualification would require the appointment of a new trustee under the Indenture, the Company shall appoint a new trustee thereunder pursuant
to the applicable provisions of the Indenture. 
 (n) The Company may require each Holder of Securities to be sold pursuant
to the Shelf Registration Statement to furnish to the Company such information regarding the Holder and the distribution of the Securities as the Company may from time to time reasonably require for inclusion in the Shelf Registration Statement, and
the Company may exclude from such registration the Securities of any Holder that unreasonably fails to furnish such information within a reasonable time after receiving such request. 

  
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 (o) The Company shall enter into such customary agreements (including, if
requested, an underwriting agreement in customary form) and take all such other action, if any, as any Holder of the Securities shall reasonably request in order to facilitate the disposition of the Securities pursuant to any Shelf Registration.

 (p) In the case of any Shelf Registration, the Company shall (i) make reasonably available for inspection by the
Holders of the Securities, any underwriter participating in any disposition pursuant to the Shelf Registration Statement and any attorney, accountant or other agent retained by the Holders of the Securities or any such underwriter all relevant
financial and other records, pertinent corporate documents and properties of the Company and (ii) cause the Company’s officers, directors, employees, accountants and auditors to supply all relevant information reasonably requested by the
Holders of the Securities or any such underwriter, attorney, accountant or agent in connection with the Shelf Registration Statement, in each case, as shall be reasonably necessary to enable such persons, to conduct a reasonable investigation within
the meaning of Section 11 of the Securities Act; provided, however, that the foregoing inspection and information gathering shall be coordinated on behalf of the Initial Purchasers by you and on behalf of the other parties, by one
counsel designated by and on behalf of such other parties as described in Section 4 hereof; provided, further, however, that any information that is designated in writing by the Company, in good faith, as
confidential at the time of delivery of such information shall be kept confidential by the Holders or any such underwriter, attorney, accountant or other agent, unless such disclosure is made in connection with a court proceeding or required by law,
or such information is or becomes available to the public generally or through a third party without, to the knowledge of any recipient of confidential information, an accompanying obligation of confidentiality or is independently developed. 

(q) In the case of any Shelf Registration, the Company, if requested by any Holder of the Securities covered thereby, shall
cause (i) its counsel to deliver an opinion and updates thereof relating to the Securities in customary form addressed to such Holders and the managing underwriters, if any, thereof and dated, in the case of the initial opinion, the effective
date of such Shelf Registration Statement (it being agreed that the matters to be covered by such opinion shall include, without limitation, the good standing of the Company and its subsidiaries; the due authorization, execution and delivery of the
relevant agreement of the type referred to in Section 3(o) hereof; the due authorization, execution, authentication and issuance, and the validity and enforceability, of the applicable Securities; the absence of governmental approvals
required to be obtained in connection with the Shelf Registration Statement, the offering and sale of the applicable Securities, or any agreement of the type referred to in Section 3(o) hereof; the compliance as to form of such Shelf
Registration Statement and any documents incorporated by reference therein and of the Indenture with the requirements of the Securities Act and the Trust Indenture Act, respectively; and (A) as of the date of the opinion and as of the effective
date of the Shelf Registration Statement or most recent post-effective amendment thereto, as the case may be, the absence from such Shelf Registration Statement and the prospectus included therein, as then amended or supplemented, and from any
documents incorporated by reference therein and (B) as of an applicable time identified by such Holders or managing underwriters, the absence from such prospectus 

  
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taken together with any other documents identified by such Holders or managing underwriters, in the case of (A) and (B), of an untrue statement of a material fact or the omission to state
therein a material fact required to be stated therein or necessary to make the statements therein not misleading (in the case of any such incorporated documents, in the light of the circumstances existing at the time that such documents were filed
with the Commission under the Exchange Act)); (ii) its officers to execute and deliver all customary documents and certificates and updates thereof requested by any underwriters of the applicable Securities and (iii) its independent public
accountants and the independent public accountants with respect to any other entity for which financial information is provided in the Shelf Registration Statement to provide to the selling Holders of the applicable Securities and any underwriter
therefor a comfort letter in customary form and covering matters of the type customarily covered in comfort letters in connection with primary underwritten offerings, subject to receipt of appropriate documentation as contemplated, and only if
permitted, by Statement of Auditing Standards No. 72. 
 (r) In the case of the Registered Exchange Offer, if requested
by any Initial Purchaser or any known Participating Broker-Dealer, the Company shall cause (i) its counsel to deliver to such Initial Purchaser or such Participating Broker-Dealer signed opinions in the form set forth in Section 5(b) of
the Purchase Agreement with such changes as are customary in connection with the preparation of a Registration Statement and (ii) its independent public accountants and the independent public accountants with respect to any other entity for
which financial information is provided in the Registration Statement to deliver to such Initial Purchaser or such Participating Broker-Dealer a comfort letter, in customary form, meeting the requirements as to the substance thereof as set forth in
Sections 5(a) and 5(b) of the Purchase Agreement, with appropriate date changes. 
 (s) If a Registered Exchange Offer or a
Private Exchange is to be consummated, upon delivery of the Initial Securities by Holders to the Company (or to such other person as directed by the Company) in exchange for the Exchange Securities or the Private Exchange Securities, as the case may
be, the Company shall mark, or cause to be marked, on the Initial Securities so exchanged that such Initial Securities are being canceled in exchange for the Exchange Securities or the Private Exchange Securities, as the case may be; in no event
shall the Initial Securities be marked as paid or otherwise satisfied. 
 (t) The Company will use its reasonable best
efforts to (a) if the Initial Securities have been rated prior to the initial sale of such Initial Securities, confirm such ratings will apply to the Securities covered by a Shelf Registration Statement, or (b) if the Initial Securities
were not previously rated, cause the Securities covered by a Shelf Registration Statement to be rated with the appropriate rating agencies, but in each case only if so requested by Holders of a majority in aggregate principal amount of Securities
covered by such Registration Statement, or by the managing underwriters, if any. 
 (u) In the event that any broker-dealer
registered under the Exchange Act shall underwrite any Securities or participate as a member of an underwriting syndicate 

  
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or selling group or “assist in the distribution” (within the meaning of the Conduct Rules (the “Rules”) of the Financial Industry Regulatory Authority
(“FINRA”)) thereof, whether as a Holder of such Securities or as an underwriter, a placement or sales agent or a broker or dealer in respect thereof, or otherwise, the Company will assist such broker-dealer in complying with the
requirements of such Rules, including, without limitation, by (i) if such Rules, including Rule 2720, shall so require, engaging a “qualified independent underwriter” (as defined in Rule 2720) to participate in the preparation of the
Registration Statement relating to such Securities, to exercise usual standards of due diligence in respect thereto and, if any portion of the offering contemplated by such Registration Statement is an underwritten offering or is made through a
placement or sales agent, to recommend the yield of such Securities, (ii) indemnifying any such qualified independent underwriter to the extent of the indemnification of underwriters provided in Section 5 hereof and
(iii) providing such information to such broker-dealer as may be required in order for such broker-dealer to comply with the requirements of the Rules. 

(v) The Company shall use its reasonable best efforts to take all other steps necessary to effect the registration of the
Securities covered by a Registration Statement contemplated hereby. 
 4. Registration Expenses. The Company shall bear all fees and
expenses incurred in connection with the performance of its obligations under Sections 1 through 3 hereof (including the reasonable fees and expenses, if any, of counsel for the Initial Purchasers incurred in connection with the
Registered Exchange Offer), whether or not the Registered Exchange Offer or a Shelf Registration is filed or becomes effective, and, in the event of a Shelf Registration, shall bear or reimburse the Holders of the Securities covered thereby for the
reasonable fees and disbursements of one firm of counsel designated by the Holders of a majority in principal amount of the Initial Securities covered thereby to act as counsel for the Holders of the Initial Securities in connection therewith. Each
Holder shall be responsible for paying all underwriting discounts and commissions, if any, relating to the sale or disposition of such Holder’s Securities pursuant to a Shelf Registration Statement. 

5. Indemnification. 

(a) The Company and each of the Guarantors, jointly and severally, agree to indemnify and hold harmless each Holder of the
Securities, any Participating Broker-Dealer and each person, if any, who controls such Holder or such Participating Broker-Dealer within the meaning of the Securities Act or the Exchange Act (each Holder, any Participating Broker-Dealer and such
controlling persons are referred to collectively as the “Indemnified Parties”) from and against any losses, claims, damages or liabilities, joint or several, or any actions in respect thereof (including, but not limited to, any
losses, claims, damages, liabilities or actions relating to purchases and sales of the Securities) to which each Indemnified Party may become subject under the Securities Act, the Exchange Act or otherwise, insofar as such losses, claims, damages,
liabilities or actions arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in a Registration Statement or prospectus or in any amendment or supplement thereto or in any preliminary prospectus
or “issuer free writing prospectus,” 

  
 12 








 
as defined in Commission Rule 433 (“Issuer FWP”), relating to a Shelf Registration, or arise out of, or are based upon, the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements therein not misleading, and shall reimburse, as incurred, the Indemnified Parties for any legal or other expenses reasonably incurred by them in connection with
investigating or defending any such loss, claim, damage, liability or action in respect thereof; provided, however, that the Company and each Guarantor will not be liable in any such case to the extent that such loss, claim, damage or
liability arises out of or is based upon any untrue statement or alleged untrue statement or omission or alleged omission made in a Registration Statement or prospectus or in any amendment or supplement thereto or in any preliminary prospectus or
Issuer FWP relating to a Shelf Registration in reliance upon and in conformity with written information pertaining to such Holder and furnished to the Company by or on behalf of such Holder specifically for inclusion therein. 

(b) Each Holder of the Securities, severally and not jointly, will indemnify and hold harmless the Company and each Guarantor,
their directors and officers and each person, if any, who controls the Company or such Guarantor within the meaning of the Securities Act or the Exchange Act from and against any losses, claims, damages or liabilities or any actions in respect
thereof, to which the Company or any such Guarantor, their directors and officers or any such controlling person may become subject under the Securities Act, the Exchange Act or otherwise, insofar as such losses, claims, damages, liabilities or
actions arise out of or are based upon any untrue statement or alleged untrue statement of a material fact contained in a Registration Statement or prospectus or in any amendment or supplement thereto or in any preliminary prospectus or Issuer FWP
relating to a Shelf Registration, or arise out of or are based upon the omission or the alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, but in each case only
to the extent that the untrue statement or omission or alleged untrue statement or omission was made in reliance upon and in conformity with written information pertaining to such Holder and furnished to the Company by or on behalf of such Holder
specifically for inclusion therein; and, subject to the limitation set forth immediately preceding this clause, shall reimburse, as incurred, the Company or any such Guarantor, their directors and officers or any such controlling person for any
legal or other expenses reasonably incurred by the Company or any such Guarantor, their directors and officers or any such controlling person in connection with investigating or defending any loss, claim, damage, liability or action in respect
thereof. This indemnity agreement will be in addition to any liability that such Holder may otherwise have to the Company, any Guarantor, their directors and officers or any such controlling person. 

(c) Promptly after receipt by an indemnified party under this Section 5 of notice of the commencement of any action
or proceeding (including a governmental investigation), such indemnified party will, if a claim in respect thereof is to be made against the indemnifying party under this Section 5, notify the indemnifying party of the commencement
thereof; but the failure to notify the indemnifying party shall not relieve the indemnifying party from any liability that it may have under subsection (a) or (b) above except to the extent that it has been materially prejudiced (through
the forfeiture of substantive rights or defenses) by such failure; and provided, further that the failure to 

  
 13 








 
notify the indemnifying party shall not relieve it from any liability that it may have to an indemnified party otherwise than under subsection (a) or (b) above. In case any such action
is brought against any indemnified party, and it notifies the indemnifying party of the commencement thereof, the indemnifying party will be entitled to participate therein and, to the extent that it may wish, jointly with any other indemnifying
party similarly notified, to assume the defense thereof, with counsel reasonably satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnifying party), and after notice from
the indemnifying party to such indemnified party of its election so to assume the defense thereof the indemnifying party will not be liable to such indemnified party under this Section 5 for any legal or other expenses, other than
reasonable costs of investigation, subsequently incurred by such indemnified party in connection with the defense thereof. No indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement of any pending
or threatened action in respect of which any indemnified party is or could have been a party and indemnity could have been sought hereunder by such indemnified party unless such settlement (i) includes an unconditional release of such
indemnified party from all liability on any claims that are the subject matter of such action, and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party. 

(d) If the indemnification provided for in this Section 5 is unavailable or insufficient to hold harmless an
indemnified party under subsections (a) or (b) above, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of the losses, claims, damages or liabilities (or actions in respect
thereof) referred to in subsection (a) or (b) above (i) in such proportion as is appropriate to reflect the relative benefits received by the indemnifying party or parties on the one hand and the indemnified party on the other from
the exchange of the Securities, pursuant to the Registered Exchange Offer, or (ii) if the allocation provided by the foregoing clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause (i) above but also the relative fault of the indemnifying party or parties on the one hand and the indemnified party on the other in connection with the statements or omissions that resulted in such
losses, claims, damages or liabilities (or actions in respect thereof) as well as any other relevant equitable considerations. The relative fault of the parties shall be determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company and the Guarantors on the one hand or such Holder or such other indemnified party, as the case may be, on
the other, and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The amount paid by an indemnified party as a result of the losses, claims, damages or liabilities
referred to in the first sentence of this subsection (d) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any action or claim which is the subject
of this subsection (d). Notwithstanding any other provision of this Section 5(d), the Holders of the Securities shall not be required to contribute any amount in excess of the amount by which the net proceeds received by such Holders
from the sale of the Securities pursuant to a Registration Statement exceeds the amount of damages 

  
 14 








 
which such Holders have otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this subsection (d), each person, if any, who controls such
indemnified party within the meaning of the Securities Act or the Exchange Act shall have the same rights to contribution as such indemnified party and each person, if any, who controls the Company or any Guarantor within the meaning of the
Securities Act or the Exchange Act shall have the same rights to contribution as the Company and the Guarantors. 
 (e) The
agreements contained in this Section 5 shall survive the sale of the Securities pursuant to a Registration Statement and shall remain in full force and effect, regardless of any termination or cancellation of this Agreement or any
investigation made by or on behalf of any indemnified party. 
 6. Additional Interest Under Certain Circumstances. 

(a) Additional interest (the “Additional Interest”) with respect to the Initial Securities shall be assessed
as follows if any of the following events occur (each such event in clauses (i) through (iii) below a “Registration Default”): 

(i) If obligated to file a Shelf Registration Statement pursuant to (A) Sections 2(i)-(ii) above, the Shelf
Registration Statement has not been declared effective by the Commission (or become effective automatically) on or prior to the 365th day after the Issue Date, or (B) Sections 2(iii-iv) above, the Shelf Registration Statement has not
been declared effective by the Commission (or become effective automatically) on or prior to the 180th day after the date on which the Shelf Registration Statement is required to be filed; 

(ii) If the Registered Exchange Offer has not been consummated on or before the 365th day after the Issue Date; or 

(iii) If after either the Exchange Offer Registration Statement or the Shelf Registration Statement is declared (or becomes
automatically) effective (A) such Registration Statement thereafter ceases to be effective during the periods specified in Sections 1 and 2, as applicable; or (B) such Registration Statement or the related prospectus ceases
to be usable (except as permitted in subsection (b)) in connection with resales of Transfer Restricted Securities during the periods specified herein because either (1) any event occurs as a result of which the related prospectus forming part
of such Registration Statement would include any untrue statement of a material fact or omit to state any material fact necessary to make the statements therein in the light of the circumstances under which they were made not misleading, (2) it
shall be necessary to amend such Registration Statement or supplement the related prospectus, to comply with the Securities Act or the Exchange Act or the respective rules thereunder, or (3) such Registration Statement is a Shelf Registration
Statement that has expired before a replacement Shelf Registration Statement has become effective. 

  
 15 








 Additional Interest shall accrue on the Initial Securities over and above the interest set forth
in the title of the Securities from and including the date on which any such Registration Default shall occur to but excluding the date on which all such Registration Defaults have been cured. In the event such Registration Defaults are not
previously cured, all Registration Defaults shall be cured on the date that each Security is no longer a Transfer Restricted Security. The rate of the Additional Interest will be 0.25% per year for the first 90-day period immediately following
the occurrence of a Registration Default, and such rate will increase by an additional 0.25% per year with respect to each subsequent 90-day period until all Registration Defaults have been cured, up to a maximum Additional Interest rate of
1.00% per year. The Issuer will pay such Additional Interest on regular interest payment dates. Such Additional Interest will be in addition to any other interest payable from time to time with respect to the Initial Securities and the Exchange
Securities. The Company will not be required to pay Additional Interest for more than one Registration Default at any given time. Following the cure of all Registration Defaults, the accrual of Additional Interest will cease and the interest rate
will revert to the original rate, 6.875%. The Additional Interest due pursuant to this Section 6(a) shall be the sole remedy for any Registration Default. 

(b) A Registration Default referred to in Section 6(a)(iii)(B) hereof shall be deemed not to have occurred and be
continuing in relation to a Shelf Registration Statement or the related prospectus if (i) such Registration Default has occurred solely as a result of (x) the filing of a post-effective amendment to such Shelf Registration Statement to
incorporate annual audited financial information with respect to the Company where such post-effective amendment is not yet effective and needs to be declared effective to permit Holders to use the related prospectus or (y) other material
events, with respect to the Company that would need to be described in such Shelf Registration Statement or the related prospectus and (ii) in the case of clause (y), the Company is proceeding promptly and in good faith to amend or supplement
such Shelf Registration Statement and related prospectus to describe such events; provided, however, that in any case if such Registration Default occurs for a continuous period in excess of 60 days, Additional Interest shall be payable in
accordance with the above paragraph from the day such Registration Default would have been deemed to occur but for this Section 6(b) until such Registration Default is cured. 

(c) Any amounts of Additional Interest due pursuant to Section 6(a) above will be payable in cash on the regular
interest payment dates with respect to the Initial Securities. The amount of Additional Interest will be determined by multiplying the applicable Additional Interest rate by the principal amount of the Initial Securities, multiplied by a fraction,
the numerator of which is the number of days such Additional Interest rate was applicable during such period (determined on the basis of a 360-day year comprised of twelve 30-day months), and the denominator of which is 360. 

(d) “Transfer Restricted Securities” means each Security until (i) the date on which such Transfer
Restricted Security has been exchanged by a person other than a 

  
 16 








 
broker-dealer for a freely transferable Exchange Security in the Registered Exchange Offer, (ii) following the exchange by a broker-dealer in the Registered Exchange Offer of an Initial
Security for an Exchange Security, the date on which such Exchange Security is sold to a purchaser who receives from such broker-dealer on or prior to the date of such sale a copy of the prospectus contained in the Exchange Offer Registration
Statement, (iii) the date on which such Initial Security has been effectively registered under the Securities Act and disposed of in accordance with the Shelf Registration Statement or (iv) the date on which such Initial Securities are
distributed to the public pursuant to Rule 144 under the Securities Act or are saleable by non-affiliates of the Company pursuant to Rule 144(d)(l)(i) under the Securities Act, provided, however, that the six month period shall be replaced
with one year. 
 7. Rules 144 and 144A. The Company shall use its reasonable best efforts to file the reports required to be filed
by it under the Securities Act and the Exchange Act in a timely manner and, if at any time the Company is not required to file such reports, it will, upon the request of any Holder of Initial Securities, make publicly available other information so
long as necessary to permit sales of their securities pursuant to Rules 144 and 144A. The Company covenants that it will take such further action as any Holder of Initial Securities may reasonably request, all to the extent required from time to
time to enable such Holder to sell Initial Securities without registration under the Securities Act within the limitation of the exemptions provided by Rules 144 and 144A (including the requirements of Rule 144A(d)(4)). The Company will provide a
copy of this Agreement to prospective purchasers of Initial Securities identified to the Company by the Initial Purchasers upon request. Upon the request of any Holder of Initial Securities, the Company shall deliver to such Holder a written
statement as to whether it has complied with such requirements. Notwithstanding the foregoing, nothing in this Section 7 shall be deemed to require the Company to register any of its securities pursuant to the Exchange Act. 

8. Underwritten Registrations. If any of the Transfer Restricted Securities covered by any Shelf Registration are to be sold in an
underwritten offering, the investment banker or investment bankers and manager or managers that will administer the offering will be selected by the Holders of a majority in aggregate principal amount of such Transfer Restricted Securities to be
included in such offering. 
 No person may participate in any underwritten registration hereunder unless such person (i) agrees to
sell such person’s Transfer Restricted Securities on the basis reasonably provided in any underwriting arrangements approved by the persons entitled hereunder to approve such arrangements and (ii) completes and executes all questionnaires,
powers of attorney, indemnities, underwriting agreements and other documents reasonably required under the terms of such underwriting arrangements. 

9. Miscellaneous. 

(a) Amendments and Waivers. The provisions of this Agreement may not be amended, modified or supplemented, and waivers
or consents to departures from the provisions hereof may not be given, except by the Company and the written consent of the Holders of a majority in principal amount of (or, in the case of any Additional Interest, all) the Securities affected by
such amendment, modification, supplement, waiver or consent. 

  
 17 








 (b) Notices. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand delivery, first-class mail, facsimile transmission, or air courier that guarantees overnight delivery: 

(i) if to a Holder of the Securities, at the most current address given by such Holder to the Company. 

(ii) if to the Initial Purchasers: 

Merrill Lynch, Pierce, Fenner & Smith 

                     Incorporated

 One Bryant Park 
 New York,
NY 10036 
 with a copy (which shall not constitute notice) to: 

Latham & Watkins LLP 

811 Main Street, Suite 3700 

Houston, TX 77002 
 Fax No.:
(713) 546-5401 
 Attention: Sean Wheeler 

(iii) if to the Company: 

Matador Resources Company 
 One
Lincoln Centre 
 5400 LBJ Freeway, Suite 1500 

Dallas, Texas 75240 
 Fax No.:
(972) 371-5201 
 Attention: Joseph Wm. Foran, Chief Executive Officer 

with a copy (which shall not constitute notice) to: 

Baker Botts L.L.P. 
 2001 Ross
Avenue 
 Dallas, Texas 75201 

Fax No.: (214) 661-4634 

Attention: Douglass M. Rayburn 

All such notices and communications shall be deemed to have been duly given: at the time delivered by hand, if personally delivered; three
business days after being deposited in the mail, postage prepaid, if mailed; when receipt is acknowledged by recipient’s facsimile machine operator, if sent by facsimile transmission; and on the day delivered, if sent by overnight air courier
guaranteeing next day delivery. 

  
 18 








 Unless otherwise indicated, all references herein to “days” are to calendar days. 

(c) No Inconsistent Agreements. The Company has not, as of the date hereof, entered into, nor shall it, on or after the
date hereof, enter into, any agreement with respect to its securities that is inconsistent with the rights granted to the Holders herein or otherwise conflicts with the provisions hereof. 

(d) Successors and Assigns. This Agreement shall be binding upon the Issuer, the Guarantors and their respective
successors and assigns. 
 (e) Counterparts. This Agreement may be executed in any number of counterparts and by the
parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. 

(f) Headings. The headings in this Agreement are for convenience of reference only and shall not limit or otherwise
affect the meaning hereof. 
 (g) Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAWS. 
 (h) Severability. If any
one or more of the provisions contained herein, or the application thereof in any circumstance, is held invalid, illegal or unenforceable, the validity, legality and enforceability of any such provision in every other respect and of the remaining
provisions contained herein shall not be affected or impaired thereby. 
 (i) Securities Held by the Company. Whenever
the consent or approval of Holders of a specified percentage of principal amount of Securities is required hereunder, Securities held by the Company or its affiliates (other than subsequent Holders of Securities if such subsequent Holders are deemed
to be affiliates solely by reason of their holdings of such Securities) shall not be counted in determining whether such consent or approval was given by the Holders of such required percentage. 

(j) Submission to Jurisdiction. By the execution and delivery of this Agreement, the Issuer and each Guarantor submit to
the nonexclusive jurisdiction of any competent federal or state court in the City and State of New York in any suit or proceeding arising out of or relating to this Agreement or brought under federal or state securities laws. 

[Signature pages follow.] 

  
 19 








 If the foregoing is in accordance with your understanding of our agreement, please sign and
return to the Issuer a counterpart hereof, whereupon this instrument, along with all counterparts, will become a binding agreement among the several Initial Purchasers, the Issuer and the Guarantors in accordance with its terms. 

 

			
			Very truly yours,
	
	MATADOR RESOURCES COMPANY
		
	By:		 /s/ David E. Lancaster

			David E. Lancaster
			Executive Vice President, Chief Operating Officer and Chief Financial Officer


  

			
	DELAWARE WATER MANAGEMENT COMPANY, LLC
	DLK WOLF MIDSTREAM, LLC
	DLK BLACK RIVER MIDSTREAM, LLC
	LONGWOOD GATHERING AND DISPOSAL SYSTEMS GP, INC.
	LONGWOOD MIDSTREAM SOUTH TEXAS, LLC
	LONGWOOD MIDSTREAM SOUTHEAST, LLC
	LONGWOOD MIDSTREAM DELAWARE, LLC
	MATADOR PRODUCTION COMPANY
	MRC ENERGY COMPANY
	MRC DELAWARE RESOURCES, LLC
	MRC ENERGY SOUTHEAST COMPANY, LLC
	MRC ENERGY SOUTH TEXAS COMPANY, LLC
	MRC PERMIAN COMPANY
	MRC ROCKIES COMPANY
	SOUTHEAST WATER MANAGEMENT COMPANY, LLC
		
	By:		 /s/ David E. Lancaster

			David E. Lancaster
			Executive Vice President, Chief Operating Officer and Chief Financial Officer



  
 Signature Page to
Registration Rights Agreement 








 
			
	LONGWOOD GATHERING AND DISPOSAL SYSTEMS, LP
		
	By:		Longwood Gathering and Disposal Systems GP, Inc., its general partner
		
	By:		 /s/ David E. Lancaster

			David E. Lancaster
			Executive Vice President, Chief Operating Officer and Chief Financial Officer



  
 Signature Page to
Registration Rights Agreement 









					
	The foregoing Registration Rights Agreement is hereby confirmed and accepted as of the date first above written.
	
	MERRILL LYNCH, PIERCE, FENNER & SMITH
	          INCORPORATED

		
			 Acting on behalf of itself
 and as
the Representative of
 the several Initial Purchasers

		
	By:		Merrill Lynch, Pierce, Fenner & Smith
			      Incorporated

		
	By:		 /s/ Neil Kahrim

			Name:		Neil Kahrim
			Title:		Director


  
 Signature Page to
Registration Rights Agreement 








 ANNEX A 

Each broker-dealer that receives Exchange Securities for its own account pursuant to the Registered Exchange Offer must acknowledge that it
will deliver a prospectus in connection with any resale of such Exchange Securities. The Letter of Transmittal states that by so acknowledging and by delivering a prospectus, a broker-dealer will not be deemed to admit that it is an
“underwriter” within the meaning of the Securities Act. This Prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of Exchange Securities received in exchange for
Initial Securities where such Initial Securities were acquired by such broker-dealer as a result of market-making activities or other trading activities. The Company has agreed that, for a period of 180 days after the consummation of the Registered
Exchange Offer, it will make this Prospectus available to any broker-dealer for use in connection with any such resale. See “Plan of Distribution.” 

  
 Annex A - 1 








 ANNEX B 

Each broker-dealer that receives Exchange Securities for its own account in exchange for Securities, where such Initial Securities were
acquired by such broker-dealer as a result of market-making activities or other trading activities, must acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Securities. See “Plan of Distribution.”


  
 Annex B - 1 








 ANNEX C 

PLAN OF DISTRIBUTION 

Each broker-dealer that receives Exchange Securities for its own account pursuant to the Registered Exchange Offer must acknowledge that it
will deliver a prospectus in connection with any resale of such Exchange Securities. This Prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of Exchange Securities received
in exchange for Initial Securities where such Initial Securities were acquired as a result of market-making activities or other trading activities. The Company has agreed that, for a period of 180 days after the effective date of the Exchange Offer
Registration Statement, it will make this prospectus, as amended or supplemented, available to any broker-dealer for use in connection with any such resale. In addition, until             ,
20     (90 days after the consummation of the Registered Exchange Offer), all dealers effecting transactions in the Exchange Securities may be required to deliver a prospectus. 

The Company will not receive any proceeds from any sale of Exchange Securities by broker-dealers. Exchange Securities received by
broker-dealers for their own account pursuant to the Exchange Offer may be sold from time to time in one or more transactions in the over-the-counter market, in negotiated transactions, through the writing of options on the Exchange Securities or a
combination of such methods of resale, at market prices prevailing at the time of resale, at prices related to such prevailing market prices or negotiated prices. Any such resale may be made directly to purchasers or to or through brokers or dealers
who may receive compensation in the form of commissions or concessions from any such broker dealer or the purchasers of any such Exchange Securities. Any broker-dealer that resells Exchange Securities that were received by it for its own account
pursuant to the Exchange Offer and any broker or dealer that participates in a distribution of such Exchange Securities may be deemed to be an “underwriter” within the meaning of the Securities Act and any profit on any such resale of
Exchange Securities and any commission or concessions received by any such persons may be deemed to be underwriting compensation under the Securities Act. The Letter of Transmittal states that, by acknowledging that it will deliver and by delivering
a prospectus, a broker-dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act. 

For a period of 180 days after the consummation of the Registered Exchange Offer, the Company will promptly send additional copies of this
Prospectus and any amendment or supplement to this Prospectus to any broker-dealer that requests such documents as provided in the Letter of Transmittal. The Company has agreed to pay all expenses incident to the Exchange Offer (including the
expenses of one counsel for the Holders of the Securities) other than commissions or concessions of any brokers or dealers and will indemnify the Holders of the Securities (including any broker-dealers) against certain liabilities, including
liabilities under the Securities Act. 

  
 Annex C - 1 








 ANNEX D 

 ̈ CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10 ADDITIONAL COPIES OF THE
PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR SUPPLEMENTS THERETO. 
  

			
	Name:		  

	Address:		  

			  


 If the undersigned is not a broker-dealer, the undersigned represents that it is not engaged in, and does not
intend to engage in, a distribution of Exchange Securities. If the undersigned is a broker-dealer that will receive Exchange Securities for its own account in exchange for Initial Securities that were acquired as a result of market-making activities
or other trading activities, it acknowledges that it will deliver a prospectus in connection with any resale of such Exchange Securities; however, by so acknowledging and by delivering a prospectus, the undersigned will not be deemed to admit that
it is an “underwriter” within the meaning of the Securities Act. 

  
 Annex D - 1