Gulf Coast Ultra Deep Royalty Trust Reports Earnings Results for the Half Year Ended June 30, 2023

Gulf Coast Ultra Deep Royalty Trust (the Royalty Trust) is a statutory trust. The Company holds overriding royalty interest in future production from each of McMoRan's Inboard Lower Tertiary/Cretaceous exploration prospects located in the shallow waters of the Gulf of Mexico and onshore in South Louisiana. The Royalty Trust's reserve fund short-term investments include United States treasury securities. The Company's subject interests consist of approximately 20 specified Inboard Lower Tertiary/Cretaceous. The offshore subject interests consisted of exploration prospects, including Barataria, Barbosa, Blackbeard East, Blackbeard West, Blackbeard West, Bonnet, Calico Jack, Captain Blood, Davy Jones, Davy Jones West, Drake, England, Hook, Hurricane, Lafitte, Morgan, and Queen Anne's Revenge. The Company’s onshore subject interests consisted of Highlander, Lineham Creek, and Tortuga.