COVINGTON, La., July 17 /PRNewswire-FirstCall/ -- Hornbeck Offshore Services, Inc. (NYSE: HOS) announced today that it will release its second quarter 2007 financial results at approximately 6:00 a.m. Eastern on Thursday, August 2, 2007. In conjunction with the release, the Company has scheduled a conference call, which will be broadcast live over the Internet, on Thursday, August 2, 2007 at 10:00 a.m. Eastern (9:00 a.m. Central).

What: Hornbeck Offshore Second Quarter 2007 Earnings Conference Call

When: Thursday, August 2, 2007 at 10:00 a.m. Eastern (9:00 a.m. Central)

How: Live via phone -- By dialing (303) 262-2137 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 August 9, 2007 and may be accessed by calling (303) 590-3000 and using the pass code 11093870#. 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.

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., the U.S. Gulf of Mexico and in Puerto Rico. Hornbeck Offshore currently owns a fleet of over 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.
CONTACT: Jim Harp, CFO of Hornbeck Offshore Services, +1-985-727-6802;
or Ken Dennard, Managing Partner of DRG&E, +1-832-594-4004, for Hornbeck
Offshore Services/Web site: http://www.hornbeckoffshore.com