Transocean Ltd. has named R. Thaddeus Vayda Vice President, Investor Relations, effective July 20, 2011. Based in Houston, he will report to Transocean Ltd. President and Chief Executive Officer Steven L. Newman. Vayda rejoins Transocean, where he served in various roles from 1995 to 2000 in Marketing, Engineering and Operations and as Director, Corporate Planning and Financial Analysis. From 2000 to 2011, Vayda worked in senior sell-side energy equity research analyst and industry expert roles, covering the energy and oilfield services and equipment industry, most recently for Stifel, Nicolaus & Company, First Albany Capital and RBC Capital Markets. Prior to 1995, Vayda served as Senior Analyst in the Fleet Planning Group of Northwest Airlines, Inc.