FORM 4 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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Stice Travis D.   2. Issuer Name and Ticker or Trading Symbol Diamondback Energy, Inc. [FANG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) 500 WEST TEXAS, SUITE 1200 3. Date of Earliest Transaction (Month/Day/Year) 02/05/2015 (Street) MIDLAND, TX 79701 4. If Amendment, Date Original Filed(Month/Day/Year) 02/09/2015 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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 Stock 02/05/2015   A   35,834 (1) A $ 0 95,777 (2) (3) D

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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 Underlying Securities (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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Stice Travis D. 500 WEST TEXAS, SUITE 1200 MIDLAND, TX 79701	X		Chief Executive Officer

Signatures

/s/ Randall J. Holder as attorney-in-fact for Travis D. Stice		02/12/2015
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	As previously reported on Form 4, filed by the reporting person on February 9, 2015 (the "Original Form 4"), these securities are restricted stock units that were granted under the issuer's 2012 Equity Incentive Plan. 11,945 of these restricted stock units vested on February 5, 2015, and the remaining 23,889 restricted stock units will vest in two approximately equal annual installments beginning on January 2, 2016.
(2)	The reporting person is filing this amendment to the Original Form 4 solely to correct the number of securities beneficially owned by the reporting person following the reported transaction in Table I, Item 5 of the Original Form 4. This number is being amended to include the 14,286 restricted stock units that vested and settled on April 18, 2014 and the 30,952 restricted stock units that were moved from Table II to Table I, which in each case were reported on a Form 4 filed by the reporting person on July 17, 2014, and were inadvertently omitted from the Original Form 4.
(3)	Except for the amendment reported on this Form 4/A, no other changes were made to the Original Form 4.

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