Sec Form 4 Filing - Sanchez Patricio D. @ Sanchez Energy Corp - 2017-09-14

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 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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Sanchez Patricio D. 2. Issuer Name and Ticker or Trading Symbol Sanchez Energy Corp [ SN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Executive Vice President (Last) (First) (Middle) 1000 MAIN STREET, SUITE 3000 3. Date of Earliest Transaction (MM/DD/YY) 09/14/2017 (Street) HOUSTON, TX77002 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 09/14/2017 P( 1 ) 222,000 A $ 4.5085 ( 2 ) 473,485 D Common Stock 09/15/2017 P( 1 ) 98,000 A $ 4.6393 ( 3 ) 571,485 D Common Stock 371,836 I By 1988 Trust No. 14 ( 4 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Sanchez Patricio D. 1000 MAIN STREET, SUITE 3000 HOUSTON, TX77002 Executive Vice President Signatures /s/ Patricio D. Sanchez 09/15/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reporting Person's purchase of a portion of the reported shares may be matchable under Section 16(b) of the Securities Exchange Act of 1934, as amended, to the extent of 35,170 shares of common stock of Sanchez Energy Corporation ("SN"), with the disposition, on April 18, 2017, by Reporting Person of 35,170 shares of SN common stock. Accordingly, Reporting Person has agreed to pay to SN, upon settlement of the purchase, the full amount of the profit realized by Reporting Person in connection with the short-swing transaction. ( 2 )This transaction was executed in multiple trades at prices ranging from $4.495 to $4.530. The price reported above reflects the weighted average purchase price. Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, SN or a security holder of SN full information regarding the number of shares and prices at which the transaction was effected. ( 3 )This transaction was executed in multiple trades at prices ranging from $4.585 to $4.710. The price reported above reflects the weighted average purchase price. Reporting Person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, SN or a security holder of SN full information regarding the number of shares and prices at which the transaction was effected. ( 4 )These shares are owned directly by 1988 Trust No. 14. Reporting Person is a co-trustee, along with A. R. Sanchez, Jr., and a beneficiary of 1988 Trust No. 14. Reporting Person may be deemed to share voting and dispositive power over the shares held by 1988 Trust No. 14. 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.

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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.