Main Links Stack-View™ Service The first-of-its-kind service that applies 24/7 real-time monitoring, data visualization and advanced analytics to identify trends and detect anomalies in BOP performance. STACK-VIEW™ SERVICE ‹ › An error occured loading the stock feed. LATEST IR NEWS 05/10/2021 Diamond Offshore Names CEO 04/26/2021 Diamond Offshore Completes Financial Restructuring MORE FINANCIAL REPORTS Annual Reports Quarterly Results RIG FLEET RIG FLEET STATUS REPORT - NOVEMBER 1, 2021 RESPONSIBLY UNLOCKING ENERGY VIEW OUR PURPOSE, MISSION, VISION CAREERS VIEW OUR OPEN JOB OPPORTUNITIES LEGAL SITE MAP PRIVACY CORPORATE PROFILE Diamond Offshore Drilling, Inc. is a leader in offshore drilling, providing contract drilling services to the energy industry around the globe with a total fleet of 15 offshore drilling rigs, consisting of 11 semisubmersibles and four dynamically positioned drillships. LEARN MORE GO ©2021 DIAMOND OFFSHORE DRILLING, INC. ALL RIGHTS RESERVED.

Skip to main navigation Main Links Secondary Links Investor Relations Investor Relations Rig Fleet Status Report Press Releases Financial Information Corporate Governance Calendar of Events INVESTOR TOOLKIT PRINT PAGE E-MAIL ALERTS RSS FEEDS ANNUAL REPORT CONTACT INFORMATION REQUEST INFORMATION SHAREHOLDER SERVICES DOCUMENT REQUEST EMAIL ALERTS CONTACT IR BREADCRUMB HOME ~ INVESTOR RELATIONS ~ CONTACT IR Contact Information INVESTOR CONTACTS Investor Relations Samir Ali Phone: (281) 647-4035 E-mail: ir@dodi.com Transfer Agent Computershare P.O. Box 505000 Louisville, KY 40233-5000 Phone: (877) 812-4207 Corporate Website: http://www.computershare.com/investor Accountants Deloitte & Touche LLP LEGAL SITE MAP CORPORATE PROFILE Diamond Offshore Drilling Inc. is a leader in offshore drilling, providing contract drilling services to the energy industry around the globe with a total fleet of 15 offshore drilling rigs, consisting of 11 semisubmersibles and four dynamically positioned drillships. LEARN MORE GO © 2021 DIAMOND OFFSHORE, INC. ALL RIGHTS RESERVED.