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 *
Cook John S
  2. Issuer Name and Ticker or Trading Symbol
HORNBECK OFFSHORE SERVICES INC /LA [HOS]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive VP, CCO, & CIO
(Last)
(First)
(Middle)
103 NORTHPARK BOULEVARD, SUITE 300
3. Date of Earliest Transaction (Month/Day/Year)
02/06/2018
(Street)

COVINGTON, LA 70433
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 02/06/2018   D   67 (1) D $ 0 219,592 (2) D  
COMMON STOCK               50 I By UGMA custodian for children

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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 (3) 02/06/2018   A   169,251   02/06/2019 02/06/2021 COMMON STOCK 169,251 $ 0 169,251 D  
PHANTOM STOCK (4) 02/06/2018   A   169,251   02/06/2021 02/06/2021 COMMON STOCK 169,251 $ 0 169,251 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Cook John S
103 NORTHPARK BOULEVARD, SUITE 300
COVINGTON, LA 70433
      Executive VP, CCO, & CIO  

Signatures

 /s/ Beth A. LaBrosse as POA for John S. Cook   02/08/2018
**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) These shares represent the forfeiture of a portion of a performance - vest restricted stock unit award granted February 5, 2013.
(2) Includes 500 shares acquired under the Company's employee stock purchase plan on June 30, 2017 and 500 shares acquired under the Company's employee stock purchase plan on December 31, 2017.
(3) These time-vest phantom restricted stock unit awards will vest in three equal annual installments on the 1st, 2nd and 3rd anniversaries of the Grant Date. Each is the economic equivalent of one share of the Company's Common Stock. These phantom shares are payable in either stock, cash or notes payable at the election of the Company.
(4) These performance-vest phantom restricted stock awards can vest in whole or in part on the 3rd anniversary of the Grant Date based upon the Company achieving certain levels of specified performance objectives. The number of units listed above represent the maximum amount that may be earned, or 150% of the target grant. Each is the economic equivalent of one share of the Company's Common Stock. These phantom shares are payable in either stock, cash, or notes payable at the election of the Company.

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