Noble Corp plc

Noble Corporation plc, a public limited company incorporated under the laws of England and Wales ( Noble ), is a leading offshore drilling contractor for the oil and gas industry. We provide contract drilling services to the international oil and gas industry with our global fleet of mobile offshore drilling units. We deliver our services through a high-specification fleet of floating and jackup rigs and the deployment of our drilling rigs in oil and gas basins around the world. Noble and its predecessors have been engaged in the contract drilling of oil and gas wells since 1921. As of December 31, 2025, our fleet of 36 drilling rigs consisted of 25 floaters and 11 jackups. On June 9, 2024, Noble entered into an agreement and plan of merger (the Diamond Merger Agreement ) with Diamond Offshore Drilling, Inc. ( Diamond ), Dolphin Merger Sub 1, Inc., and Dolphin Merger Sub 2, Inc., under which Noble would acquire Diamond in a stock plus cash transaction (the Diamond Transaction ). On September 4, 2024 (the Diamond Closing Date ), Noble completed its acquisition of Diamond. For additional information, see Note 2 Acquisitions and Divestitures to our consolidated financial statements included in Part II, Item 8 of this Annual Report on Form 10-K. References in this Annual Report on Form 10-K to Noble, the Company, we, us, and our refer collectively to Noble and its consolidated subsidiaries on and after the Diamond Closing Date, as applicable.