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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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) EVP, CIO, Chief Commercial Off (Last) (First) (Middle) 103 NORTHPARK BOULEVARD, SUITE 300 3. Date of Earliest Transaction (Month/Day/Year) 05/02/2013 (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 05/02/2013   M   12,000 (1) A $ 23.1 105,591 D   COMMON STOCK 05/02/2013   S   6,000 (1) D $ 47.1 99,591 D   COMMON STOCK 05/02/2013   S   6,000 (1) D $ 49 93,591 D   COMMON STOCK 05/03/2013   M   5,000 (2) A $ 33.15 98,591 D   COMMON STOCK 05/03/2013   S   5,000 (2) D $ 52 93,591 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

COMMON STOCK (right to buy)

$ 23.1

05/02/2013

M

12,000 (1)

(3)

02/22/2015

COMMON STOCK

12,000

$ 0

0

D

COMMON STOCK (right to buy)

$ 33.15

05/03/2013

M

5,000 (2)

(4)

02/14/2016

COMMON STOCK

5,000

$ 0

4,500

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Cook John S 103 NORTHPARK BOULEVARD, SUITE 300 COVINGTON, LA 70433			EVP, CIO, Chief Commercial Off

Signatures

/s/ Paul M. Ordogne, as poa for John S. Cook		05/06/2013
**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)	Represents a broker-assisted exercise and sale of an employee stock option award granted to the Reporting Person on February 22, 2005 that would expire on February 22, 2015. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
(2)	Represents a broker-assisted exercise and sale of an employee stock option award granted to the Reporting Person on February 14, 2006 that would expire on February 14, 2016. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
(3)	The option provides for vesting in three equal annual installments on the 1st, 2nd and 3rd anniversaries of the February 22, 2005 Grant Date.
(4)	The option provides for vesting in three equal annual installments on the 1st, 2nd and 3rd anniversaries of the February 14, 2006 Grant Date.

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