Exhibit 99.1 Tidewater Inc. 842 West Sam Houston Parkway North, Suite 400 Houston, TX 77024, USA +1.713.470.5300 Tidewater Reports Results for the Three and Twelve Months Ended December 31, 2023 Full-Year 2023 Highlights ● Revenue of $1,010.0 million, a 55.9$16,802 per day, $4,048 higher than 2022 ● Net income of$97.2 million, an increase of $118.9 million from 2022 ● Adjusted EBITDA of$386.7 million, an increase of $220.0 million from 2022 ● Net cash p ...