EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Hornbeck Offshore Services, Inc., a Delaware corporation (the “Company”), on Form 10-K for the year ending December 31, 2007, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Todd M. Hornbeck, Chairman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. Information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: February 29, 2008	/s/ Todd M. Hornbeck
	Todd M. Hornbeck
	Chairman, President and Chief Executive Officer