Superior Offshore International Announces Successful Launch of Superior Achiever

HOUSTON, Jan. 21 /PRNewswire-FirstCall/ -- Superior Offshore International, Inc. today announced that the Superior Achiever, a DP-III deepwater construction and dive support vessel that is under construction and is expected to be delivered in late 2008, was successfully launched in the Netherlands on January 19, 2008. The launch of the Superior Achiever paves the way for the completion of the previously announced sale and charter-back of the vessel between Superior Offshore and Hornbeck Offshore Services LLC, a wholly owned subsidiary of Hornbeck Offshore Services, Inc. . Superior Offshore and Hornbeck have delivered funds and documents into escrow to be released on Tuesday, January 22, 2008, due to today's U.S. bank holiday.

About Superior Offshore International, Inc.

Superior Offshore is a leading provider of subsea construction and commercial diving services to the offshore oil and gas industry, serving operators internationally and domestically in the outer continental shelf of the U.S. Gulf of Mexico. Construction services include installation, upgrading and decommissioning of pipelines and production infrastructure. Commercial diving services include inspection, maintenance and repair services and support services for subsea construction and salvage operations. The company also operates a construction/fabrication division. Superior Offshore operates a fleet of nine service vessels and provides remotely operated vehicles (ROVs) and saturation diving systems for deepwater and harsh environment operations.

Forward-Looking Statements

Certain statements contained in this news release are forward-looking statements. All statements other than statements of historical fact are, or may be deemed to be, forward-looking statements, including statements regarding the expected closing of the sale/charter-back transaction and the expected delivery and deployment of the Superior Achiever. Forward-looking statements by their nature involve substantial risks and uncertainties that could significantly affect expected results, and actual future results could differ materially from those described in such statements. Although it is not possible to identify all factors, Superior Offshore continues to face many risks and uncertainties. Some of the factors that could cause actual future results to differ materially are described under the caption "Risk Factors" in Superior Offshore's Prospectus, dated April 19, 2007 and filed with the Securities and Exchange Commission ("SEC") on April 20, 2007, and Superior Offshore's other filings with the SEC, which may be obtained by visiting the Investor Relations section of Superior Offshore's website under "Financial Information" at http://www.superioroffshore.com/ or from the SEC's website at http://www.sec.gov/.

Contacts: Superior Offshore International Roger Burks, CFO roger.burks@superioroffshore.com 713-910-1875 DRG&E Ken Dennard / ksdennard@drg-e.com Anne Pearson / apearson@drg-e.com 713-529-6600