Ownership Submission
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 *
WEXFORD CAPITAL LP
  2. Issuer Name and Ticker or Trading Symbol
Diamondback Energy, Inc. [FANG]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
411 WEST PUTNAM AVENUE, SUITE 125
3. Date of Earliest Transaction (Month/Day/Year)
10/11/2012
(Street)

GREENWICH, CT 06830
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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, par value $0.01 per share (4) 10/11/2012   P   1,717,126 (1) (2) (3) (4) A $ 17.5 16,414,622 (1) (2) (3) I (2) (3) See Footnotes (2) (3)

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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
WEXFORD CAPITAL LP
411 WEST PUTNAM AVENUE
SUITE 125
GREENWICH, CT 06830
    X    
DAVIDSON CHARLES E
411 WEST PURNAM AVENUE
SUITE 125
GREENWICH, CT 06830
    X    
JACOBS JOSEPH
411 WEST PUTNAM AVENUE
SUITE 125
GREENWICH, CT 06830
    X    
Wexford GP LLC
411 WEST PUTNAM AVENUE
SUITE 125
GREENWICH, CT 06830
    X    

Signatures

 /s/ Arthur Amron, Vice President and Assistant Secretary of Wexford Capital LP   10/15/2012
**Signature of Reporting Person Date

 /s/ Charles E. Davidson   10/15/2012
**Signature of Reporting Person Date

 /s/ Joseph Jacobs   10/15/2012
**Signature of Reporting Person Date

 /s/ Arthur Amron, Vice President and Assistant Secretary of Wexford GP LLC   10/15/2012
**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) This Form 4 is jointly filed by Wexford Capital LP, Charles E. Davidson, Joseph M. Jacobs and Wexford GP LLC, with respect to shares of common stock, par value $0.01 per share (the "Common Stock"), of Diamondback Energy, Inc. (the "Issuer").
(2) Wexford Capital LP ("Wexford Capital") may, by reason of its status as manager of DB Energy Holdings LLC ("DB Energy"), be deemed to own beneficially the securities of which DB Energy possesses beneficial ownership. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities of which DB Energy possesses beneficial ownership. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities of which DB Energy possesses beneficial ownership. Each of Wexford Capital, Wexford GP, Davidson and Jacobs shares the power to vote and to dispose of the securities beneficially owned by DB Energy.
(3) Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaims beneficial ownership of the securities owned by DB Energy and this report shall not be deemed as an admission that they are the beneficial owners of such securities except, in the case of Davidson and Jacobs, to the extent of their respective interests in each member of DB Energy.
(4) DB Energy purchased 1,717,126 shares of Common Stock in the initial public offering of the Issuer.

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