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 *

Grimm Michael K 		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                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

P. O. BOX 8813 		3. Date of Earliest Transaction (MM/DD/YYYY)

7/19/2018
(Street)

HORSESHOE BAY, TX 78657
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

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

_ X _ Form filed by One Reporting Person
___ 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)    63206   D   (1) (2) 0   D    
Common Stock   7/19/2018     D (1)    526249   D   (1) (2) 0   I   By family limited partnership   (3)

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. Withholding for the payment of tax liabilities in connection with the vesting of restricted stock awards was effectuated following conversion into shares of Concho common stock.
(3)  Mr. Grimm is a manager of the general partner of Grimm Family Limited Partnership and therefore may be deemed to indirectly beneficially own these securities. Mr. Grimm disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Grimm Michael K
P. O. BOX 8813
HORSESHOE BAY, TX 78657 		X



Signatures
/s/ James E. Mutrie, attorney-in-fact for Michael K. Grimm 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.
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RSP PERMIAN, INC. (NYSE:RSPP)
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