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 Months Ended March 31, 2024 First Quarter 2024 Highlights ● Revenue of $321.2 million, an increase of$18.5 million, or 6.1%, from the fourth quarter of 2023 ● Average day rate increased to $19,563 per day,$1,497 higher than the fourth quarter of 2023 ● Composite leading edge term contract day rate increased to $30,641 ● Net income of$47.0 million, an inc ...