SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
X	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Van't Hof Matthew Kaes (Last) (First) (Middle) 500 WEST TEXAS AVENUE, SUITE 100 (Street) MIDLAND TX 79701 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol RATTLER MIDSTREAM LP [ RTLR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner X Officer (give title below) Other (specify below) President
	3. Date of Earliest Transaction (Month/Day/Year) 08/24/2022
	4. If Amendment, Date of Original Filed (Month/Day/Year)	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. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction 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 units representing limited partner interests	08/24/2022		D		864,027(1)(2)	D	(1)	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction 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 (Month/Day/Year)		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: 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. Pursuant to that certain Agreement and Plan of Merger dated May 15, 2022 by and among the Issuer, Diamondback Energy, Inc. ("Diamondback"), Rattler Midstream GP LLC, the general partner of Issuer, and Bacchus Merger Sub Company, a wholly owned subsidiary of Diamondback ("Merger Sub"), on August 24, 2022, Merger Sub merged with and into the Issuer, with the Issuer surviving as an indirect, wholly owned subsidiary of Diamondback (the "Merger"). At the effective time of the Merger (the "Effective Time"), each outstanding Common Unit held by the Reporting Person was converted into the right to receive 0.113 shares (the "Exchange Ratio") of common stock, par value $0.01 per share ("Common Stock"), of Diamondback.

2. Includes 457,143 phantom units granted under the Rattler Midstream LP Long-Term Incentive Plan that were converted, at the Effective Time, into an award of restricted stock units ("RSUs") relating to a number of shares of Common Stock, as adjusted by the Exchange Ratio. Such RSUs are scheduled to vest in two remaining substantially equal installments beginning on May 28, 2023.

Remarks:

	/s/ Teresa L. Dick as attorney-in-fact for Matthew Kaes Van't Hof	08/24/2022
	** 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).
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