Ventura Offshore Holding Ltd.: SSV Catarina Exercise of 4th Optional Well

7 July 2026 - Ventura Offshore Holding Ltd. (the "Company") is pleased to announce that our customer, Eni Muara Bakau B.V. (subsidiary of Searah Limited, a joint venture Company between Eni and PETRONAS), has exercised the drilling of the fourth well and a tophole in Indonesia for the semisubmersible drilling rig, SSV Catarina.

The exercise of these wells is expected to keep the rig utilized into the fourth quarter of 2026 and further increases the firm backlog of the Company by approximately $25.1 million.

For further queries, please contact:

Mardonildo Filho Chief Strategy Officer +55 21 97166 1978 mardonildo.filho@ventura-offshore.com

About Ventura Offshore Holding Ltd. Ventura Offshore Holding Ltd. is a deep-water drilling contractor providing offshore drilling services to the oil and gas industry since 1998 in Brazil and worldwide. The Company owns and operates one drillship, DS Carolina, and two semisubmersible drilling rigs, SSV Victoria and SSV Catarina, and further manages one drillship, Atlantic Zonda. The drilling rigs are currently operating offshore Brazil and Indonesia. The Company is incorporated under the laws of Bermuda and was listed on Euronext Growth Oslo on June 5, 2024, under the ticker "VTURA". Additional information about Ventura Offshore Holding can be found at https://ventura-offshore.com/en/a-ventura/.