Tidewater Inc. announced that due to the closing of executive departments and agencies of the U.S. Federal government, including the Securities and Exchange Commission, on December 24, 2018, it has extended the expiration date of its cash tender offer (the “Offer”) to purchase up to $25,368,084 aggregate principal amount of its 8.00% Senior Secured Notes due 2022 (the “Notes”) from 5:00 p.m., New York City time, on January 11, 2019 to 5:00 p.m., New York City time, on January 14, 2019, unless further extended or earlier terminated. As of January 10, 2019, $160,000 aggregate principal amount of the Notes had been tendered in the Offer. Holders of Notes who have previously validly tendered and not validly withdrawn their Notes do not need to re-tender their Notes or take any other action in response to the extension of the Offer.