EXHIBIT 99.1 PRESS RELEASE NOBLE CORPORATION PLC ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 RESULTS • Full Year 2023 Net Income of $482 million, Adjusted EBITDA of $810 million, cash provided by operating activities of $574 million, and Free Cash Flow of $184 million. • Fourth Quarter Net Income of $150 million, Adjusted EBITDA of $201 million, cash provided by operating activities of $287 million, and Free Cash Flow of $165 million. • Maersk Drilling synergy target increased from $125 million to $150 mill ...