Statement of Changes in Beneficial Ownership (4)

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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	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 * Cozby Andrew J	2. Issuer Name and Ticker or Trading Symbol WildHorse Resource Development Corp [ WRD ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                      _____ 10% Owner __ X __ Officer (give title below)      _____ Other (specify below) See Remarks
(Last)          (First)          (Middle) 920 MEMORIAL CITY WAY, SUITE 700	3. Date of Earliest Transaction (MM/DD/YYYY) 2/1/2019
(Street) HOUSTON, TX 77024 (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	2/1/2019		D		336349	D	(1) (2)	0	D

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 February 1, 2019, pursuant to the Agreement and Plan of Merger dated as of October 29, 2018 (the "Merger Agreement"), by and among WildHorse Resource Development Corporation (the "Company"), Chesapeake Energy Corporation ("Chesapeake") and Coleburn Inc. ("Merger Sub"), as amended, Merger Sub merged with an into the Company (the "Merger"), with the Company surviving the Merger and continuing as a wholly-owned subsidiary of Chesapeake.
(2)	Pursuant to the Merger Agreement, each share of Company common stock issued and outstanding prior to the effective time of the Merger owned by the Reporting Person was converted at such time into the right to receive either (i) 5.336 shares of Chesapeake common stock and $3.00 in cash, or (ii) 5.989 shares of Chesapeake common stock, in each case, with cash in lieu for any fractional shares. The closing price per share of Chesapeake common stock on the day prior to the effective date of the merger was $2.85.

Remarks: Executive Vice President and Chief Financial Officer

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Cozby Andrew J 920 MEMORIAL CITY WAY, SUITE 700 HOUSTON, TX 77024			See Remarks

Signatures
/s/ Kyle N. Roane, Attorney-in-Fact		2/1/2019
** 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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