Hornbeck Offshore Closes Private Offering

Hornbeck Offshore Services, Inc. (NYSE: HOS) has closed its private placement of an additional $75,000,000 aggregate principal amount of its 6.125% Senior Notes due 2014 under its indenture dated as of November 23, 2004. The Additional Notes were priced at 99.25% of principal amount to yield 6.232%, have substantially the same terms as the original notes and are due in 2014.

The Company intends to use the proceeds from the sale of the Additional Notes, as well as the proceeds from its concurrent public offering of common stock, to partially fund the construction of new OSVs, ocean-going tugs and ocean-going, double-hulled tank barges and the retrofit or conversion of certain existing vessels, including MPSVs. In addition, the combined proceeds may be used in connection with possible future acquisitions and additional new vessel construction programs, as well as for general corporate purposes. Pending these uses, the Company will repay debt under its revolving credit facility, which may be reborrowed.

The Additional Notes have not been registered under the Securities Act or applicable state securities laws and the Additional Notes may not be offered or sold in the United States absent registration or available exemption from such registration requirements. This news release does not constitute an offer to sell or a solicitation of an offer to buy the Additional Notes.