SIGNATURES OF REGISTRANT  Pursuant to the requirements of Section 13 of the Securities Exchange Act of 1934, the Registrant has duly  caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on  May 20, 2010. Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by  the following persons on behalf of the Registrant and in the capacities indicated on May 20, 2010. SIGNATURES OF DIRECTORS  By: /s/ Dean E. Taylor Dean E. Taylor  Chairman of the Board of Directors, President and  Chief Executive Officer By: /s/ Quinn P. Fanning  Quinn P. Fanning Executive Vice President and Chief Financial Officer By: /s/ Craig J. Demarest  Craig J. Demarest  Vice President, Principal Accounting Officer and  Controller TIDEWATER INC. (Registrant) /s/ Dean E. Taylor  Dean E. Taylor, Chairman of the Board of Directors, President and Chief Executive Officer  /s/ Jon C. Madonna  Jon C. Madonna, Director  /s/ J. Wayne Leonard  J. Wayne Leonard, Director  /s/ Nicholas J. Sutton  Nicholas J. Sutton, Director  /s/ James C. Day  James C. Day, Director  /s/ Joseph H. Netherland  Joseph H. Netherland, Director  /s/ Richard T. du Moulin  Richard T. du Moulin, Director  /s/ Richard A. Pattarozzi  Richard A. Pattarozzi, Director  /s/ Jack E. Thompson  Jack E. Thompson, Director  /s/ Miles J. Allison  Miles J. Allison, Director  /s/ Cindy B. Taylor  Cindy B. Taylor, Director  -69- 