FORM 4
[ X ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Wallace Michael W. 		2. Issuer Name and Ticker or Trading Symbol

RSP Permian, Inc. [ RSPP ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      __ X __ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

3141 HOOD STREET, SUITE 500 		3. Date of Earliest Transaction (MM/DD/YYYY)

7/19/2018
(Street)

DALLAS, TX 75219
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   7/19/2018     D (1)    27781   D   (1) (2) 0   I   See Footnote   (3)
Common Stock   7/19/2018     D (1)    82109   D   (1) (2) 0   I   See Footnote   (4)
Common Stock   7/19/2018     D (1)    8001626   D   (1) (2) 0   I   See Footnote   (5)
Common Stock   7/19/2018     D (1)    2166152   D   (1) (2) 0   I   See Footnote   (6)
Common Stock   7/19/2018     D (1)    500   D   (1) (2) 0   I   See Footnote   (7)
Common Stock   7/19/2018     D (1)    300   D   (1) (2) 0   I   See Footnote   (8)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
(1)  On July 19, 2018, pursuant to the Agreement and Plan of Merger dated as of March 27, 2018 (the "Merger Agreement"), by and among Concho Resources Inc. ("Concho"), Green Merger Sub Inc. ("Merger Sub") and RSP Permian, Inc. ("RSP"), Merger Sub merged with and into RSP (the "Merger"), with RSP surviving the Merger as a wholly-owned subsidiary of Concho.
(2)  Pursuant to the Merger Agreement, each share of RSP common stock issued and outstanding immediately prior to the effective time of the Merger (including each outstanding share of time-based restricted stock of RSP that vested in full and was treated as a share of RSP common stock for purposes of the Merger Agreement) was converted into the right to receive 0.320 of a share of Concho common stock. On July 18, 2018 (the day prior to the Merger), the closing price of one share of Concho common stock was $149.66.
(3)  These securities were held of record by Michael W. Wallace. Leslyn M. Wallace, Mr. Wallace's spouse, disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.
(4)  These securities were held of record by Mrs. Wallace. Mr. Wallace disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.
(5)  These securities were held by Wallace Family Partnership, LP ("Wallace LP"). Michael Wallace Management, LLC ("Wallace Management") is the general partner of Wallace LP, and Mr. Wallace and Mrs. Wallace were the managers of Wallace Management. Accordingly, each of Mr. and Mrs. Wallace may be deemed to share voting and dispositive power over the reported securities of Wallace LP, and as a result may be deemed to beneficially own the reported securities of Wallace LP. Each of Mr. and Mrs. Wallace disclaims beneficial ownership of the reported securities of Wallace LP except to the extent of his or her pecuniary interest therein.
(6)  These securities were held of record by Collins & Wallace Holdings, LLC. The estate of Ted Collins, Jr. and Wallace LP are the members of Collins & Wallace Holdings, LLC. Wallace Management is the general partner of Wallace LP, and Mr. and Mrs. Wallace are the managers of Wallace Management. Accordingly, the estate of Ted Collins, Jr. and Mr. and Mrs. Wallace may be deemed to share voting and dispositive power over the reported securities of Collins & Wallace Holdings, LLC, and as a result may be deemed to beneficially own the reported securities of Collins & Wallace Holdings, LLC. Each of Mr. and Mrs. Wallace disclaims beneficial ownership of the reported securities except to the extent of his or her pecuniary interest therein.
(7)  These securities were purchased by Mr. Wallace as custodian for a minor child under the Uniform Transfer to Minors Act. Mr. Wallace disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.
(8)  These securities were held by a member of Mr. and Mrs. Wallace's immediate family sharing the same household. Mr. and Mrs. Wallace disclaim beneficial ownership of these securities except to the extent of their pecuniary interest therein.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Wallace Michael W.
3141 HOOD STREET, SUITE 500
DALLAS, TX 75219 		X X

Wallace Leslyn M.
508 W. WALL STREET, SUITE 1200
MIDLAND, TX 79701
X

Wallace Family Partnership, LP
508 W. WALL STREET, SUITE 1200
MIDLAND, TX 79701
X

Michael Wallace Management, LLC
508 W. WALL STREET, SUITE 1200
MIDLAND, TX 79701
X


Signatures
/s/ James E. Mutrie, attorney-in-fact for Michael W. Wallace 7/20/2018
** Signature of Reporting Person Date

/s/ James E. Mutrie, attorney-in-fact for Leslyn M. Wallace 7/20/2018
** Signature of Reporting Person Date

/s/ James E. Mutrie, attorney-in-fact for Wallace Family Partnership, LP 7/20/2018
** Signature of Reporting Person Date

/s/ James E. Mutrie, attorney-in-fact for Michael Wallace Management, LLC 7/20/2018
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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