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 * SANCHEZ ANTONIO R JR   2. Issuer Name and Ticker or Trading Symbol Sanchez Energy Corp [SN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Executive Chairman of the BOD (Last) (First) (Middle) 1000 MAIN STREET, SUITE 3000 3. Date of Earliest Transaction (Month/Day/Year) 02/21/2017 (Street) HOUSTON, TX 77002 4. If Amendment, Date 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 (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 02/21/2017   A   193,811 A $ 11.63 1,952,066 (1) D   Common Stock 02/21/2017   A   125,407 A $ 11.63 2,077,473 D   Common Stock 02/21/2017   M   193,811 D $ 11.63 1,883,662 D   Common Stock 02/21/2017   M   125,407 D $ 11.63 1,758,255 D   Common Stock               200,000 I By: Sanchez 2016 GRAT No. 1 (2) Common Stock               199,489 I By: Sanchez 2016 GRAT No. 2 (2) Common Stock               879,472 I By Sanchez Oil & Gas Corporation (3) Common Stock               175,036 I By 1988 Trust No. 13 (4) Common Stock               26,213 I By Alicia M. Sanchez Charitable Lead Annuity Trust (5) Common Stock               707,333 I By Sanexco, Ltd. (6) Common Stock               371,836 I By 1988 Trust No. 11 (4) Common Stock               371,836 I By 1988 Trust No. 12 (4) Common Stock               371,836 I By 1988 Trust No. 14 (4) Common Stock               707,333 I By San Juan Oil & Gas No. 2, Ltd. (7) Common Stock               474,800 I By AEP Ltd. Partnership (8)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Phantom Stock

(9)

02/21/2017

M

193,811

02/21/2017

02/21/2017

Common Stock

193,811

$ 11.63

0

D

Phantom Stock

(10)

02/21/2017

M

125,407

02/21/2017

02/21/2017

Common Stock

125,407

$ 11.63

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SANCHEZ ANTONIO R JR 1000 MAIN STREET, SUITE 3000 HOUSTON, TX 77002	X		Executive Chairman of the BOD

Signatures

/s/ Antonio R. Sanchez, Jr.		03/09/2017
**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)	The number of shares of Common Stock reported in Column 5 is the number of shares beneficially owned as of the date of this filing and takes into account transactions reported on Form 4 filings since the date of the transactions reported herein.
(2)	For estate planning purposes, Reporting Person is the sole trustee of both Sanchez 2016 GRAT No. 1 and Sanchez 2016 GRAT No. 2 (collectively, the "2016 Trusts"). Reporting Person may be deemed to share voting and dispositive power over the shares held by the 2016 Trusts. Reporting Person disclaims beneficial ownership of the reported securities except to the extent of the pecuniary interest therein, if any, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.
(3)	These shares are owned directly by Sanchez Oil & Gas Corporation ("SOG"). SOG is managed by Reporting Person and other members of the Sanchez family. Reporting Person may be deemed to share voting and dispositive power over the shares held by SOG. Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.
(4)	These shares are owned directly by the following trusts (the "Trusts"), respectively: (i) 1988 Trust No. 11: co-trustee/beneficiary Antonio R. Sanchez, III; (ii) 1988 Trust No. 12: co-trustee/beneficiary Ana Lee Sanchez Jacobs; (iii) 1988 Trust No. 13 co-trustee/beneficiary Eduardo Sanchez; and (iv) 1988 Trust No. 14 co-trustee/beneficiary Patricio Sanchez. Reporting Person is a co-trustee, along with the respective co-trustees and beneficiaries listed next to the name of the Trust above, of each of the Trusts set forth above. Reporting Person may be deemed to share voting and dispositive power over the shares held by the Trusts. Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.
(5)	These shares are owned directly by the Alicia M. Sanchez Charitable Lead Annuity Trust ("CLAT"). Reporting Person is the sole trustee of CLAT. Reporting Person disclaims beneficial ownership of the reported securities except to the extent of the pecuniary interest therein, if any, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.
(6)	These shares are owned directly by Sanexco, Ltd. ("Sanexco"). Sanexco is controlled by its general partner, Sanchez Management Corporation ("SMC"), which is managed by Reporting Person. Reporting Person may be deemed to share voting and dispositive power over the shares held by Sanexco. Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.
(7)	These shares are owned directly by San Juan Oil & Gas No. 2, Ltd. ("San Juan"). San Juan is controlled by its general partner, SMC, which is managed by Reporting Person. Reporting Person may be deemed to share voting and dispositive power over the shares held by San Juan. Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.
(8)	These shares are owned directly by AEP Ltd. Partnership ("AEP"). AEP is controlled by its general partner, Reporting Person. Reporting Person may be deemed to share voting and dispositive power over the shares held by AEP. Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.
(9)	Each share of phantom stock was the economic equivalent of one share of the Issuer's common stock, par value $0.01 per share ("Common Stock"), vesting in five years or earlier if the Common Stock closing price equaled or exceeded certain benchmarks. The Reporting Person settled his shares of phantom stock for cash.
(10)	Each share of phantom stock was the economic equivalent of one share of Common Stock. The Reporting Person settled his shares of phantom stock for cash.

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