Tidewater (TDW) 8-K Tidewater to Present at the Jefferies 5th Annual Shipping, Logistics & Offshore

Exhibit 99.1

Tidewater to Present at the Jefferies 5^th Annual Shipping, Logistics & Offshore

Services Conference

NEW ORLEANS, September 10, 2008 –Tidewater Inc. (NYSE: TDW) announced today that Joseph M. Bennett, Executive Vice President and Chief Investor Relations Officer, will present at the Jefferies 5^th Annual Shipping, Logistics and Offshore Services Conference in New York, New York, on Wednesday, September 17, 2008, at approximately 9:00 a.m. EDT (8:00 a.m. CDT). The presentation will be available via real-time webcast athttp://www.tdw.com. Playback will be available on September 18, 2008, at approximately 9:00 a.m. EDT (8:00 a.m. CDT) and will be available for ninety days. Upon completion of the presentation, the company will also file a Form 8-K with the SEC which will include a transcript of the presentation and a copy of the PowerPoint™ presentation.

Tidewater Inc. owns 448 vessels, the world’s largest fleet of vessels serving the global offshore energy industry.

CONTACT: Tidewater Inc., New Orleans

Joe Bennett, Executive Vice President and Chief Investor Relations Officer

504-566-4506

SOURCE: Tidewater Inc.