Annual Meeting of Stockholders on Tuesday, May 2, 2006

COVINGTON, La., April 18 /PRNewswire-FirstCall/ -- Hornbeck Offshore Services, Inc. (NYSE: HOS) announced today that it will release its first quarter 2006 financial results at approximately 6:00 a.m. Eastern on Thursday, May 4, 2006. In conjunction with the release, the Company has scheduled a conference call, which will be broadcast live over the Internet, on Thursday, May 4, 2006 at 10:00 a.m. Eastern (9:00 a.m. Central).

     What:   Hornbeck Offshore First Quarter 2006 Earnings Conference Call

     When:   Thursday, May 4, 2006 at 10:00 a.m. Eastern (9:00 a.m. Central)

     How:    Live via phone -- By dialing (303) 262-2211 and asking for the
             Hornbeck Offshore call at least 10 minutes prior to the start
             time, or Live over the Internet -- By logging onto the web at the

             address below

     Where:  http://www.hornbeckoffshore.com , on the "IR Home" page of the
             "Investors" section of the Company's website

For those who cannot listen to the live call, a telephonic replay will be available through May 11, 2006 and may be accessed by calling (303) 590-3000 and using the pass code 11058711. Also, an archive of the webcast will be available after the call for a period of 60 days on the "IR Home" page under the "Investors" section of the Company's website.

In addition, the Company would like to remind investors that its 2006 Annual Meeting of Stockholders will occur at 9:00 a.m. Central on Tuesday, May 2, 2006, in the Company's corporate training room located at 103 Northpark Boulevard, Suite 135, Covington, Louisiana 70433. For more information, please refer to the Company's Proxy Statement, available on its website, dated April 5, 2006.

Hornbeck Offshore Services, Inc. is a leading provider of technologically advanced, new generation offshore supply vessels primarily in the U.S. Gulf of Mexico and select international markets, and is a leading transporter of petroleum products through its fleet of ocean-going tugs and tank barges primarily in the northeastern U.S. and in Puerto Rico. Hornbeck Offshore currently owns and operates a fleet of 60 vessels primarily serving the energy industry.

     Contacts:  Jim Harp, CFO
                Hornbeck Offshore Services
                985-727-6802

                Ken Dennard, Managing Partner
                DRG&E / 832-594-4004


SOURCE  Hornbeck Offshore Services, Inc.
           04/18/2006
    /CONTACT:  Jim Harp, CFO of Hornbeck Offshore Services, Inc.,
+1-985-727-6802; or Ken Dennard, Managing Partner of DRG&E, +1-832-594-4004,
for Hornbeck Offshore Services, Inc./
    /Web site:  http://www.hornbeckoffshore.com /
    (HOS)