SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* CAHOON ARTHUR L (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip)	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 X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 06/04/2004
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X 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. 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	06/04/2004		P		2,000	A	$10.58	91,386	I(1)(2)	by John C. Sites, Jr.

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 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: 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

1. Name and Address of Reporting Person* CAHOON ARTHUR L (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* ROCK CREEK PARTNERS II LTD (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* ROCK CREEK II CO INVESTMENTS LTD (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* ROCK CREEK CAPITAL II LTD (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* ROCK CREEK CAPITAL GROUP INC (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* ROCK CREEK ADVISORS INC (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* HAWKEYE INC (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* DAHL JAMES H (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* SITES JOHN C JR (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* HUDSON M ASHTON (Last) (First) (Middle) 1200 RIVERPLACE BOULEVARD SUITE 902 (Street) JACKSONVILLE FL 32207 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. These shares are owned directly by John C. Sites, Jr., a ten percent owner of the issuer, who possesses sole voting and dispositive power with respect to these shares.

2. For more information concerning the relationships among the reporting persons, see their Initial Statement of Beneficial Ownership of Securities dated March 25, 2004 with respect to securities of the issuer. Each of the reporting persons disclaims beneficial ownership of the securities of the issuer, except to the extent of their respective pecuniary interests therein, and this report should not be deemed an admission that any of them is the beneficial owner of any of such securities for purposes of Section 16 or any other purpose.

	/s/ Timothy P. McCarthy poa for Arthur L. Cahoon	06/07/2004
	** 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).
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