亮点
：Murfin 116号钻机已调至McCoy 1井，并正在进行钻探准备，该井将于本周晚些时候开钻。McCoy
1井之所以被选中进行钻探，是因为Sue Duroche 3井的钻探结果令人鼓舞，该井位于Nemaha Ridge的同一地质构造上。McCoy
1井的钻探是公司从“孪生”历史钻井转向基于地质理解和内部知识产权的数据驱动井位的里程碑。
修井机已抵达Blythe 13-20井，将其改造为评估井，并于本周安装井下监测设备。HyTerra

Limited（简称“HyTerra”或“公司”）已将其计划在2025年4月至7月期间在美国堪萨斯州Nemaha项目钻探的井数从两口增加到三口。该勘探项目资金来自Fortescue Future Industries Technologies Pty Ltd.对公司的投资。McCoy

1井本周开钻
Murfin 116号钻机已抵达McCoy 1井位，正在进行安装。McCoy 1井将于本周晚些时候开钻。McCoy 1井与Sue Duroche 3井位于Nemaha Ridge的同一地质构造上，此次钻探的决定是基于Sue Duroche 3井令人鼓舞的成果。McCoy

1井的钻探是该公司的一个里程碑，标志着该公司从“孪生”历史井转向基于地质理解和内部知识产权的数据驱动型井位选择流程。 McCoy 1号钻井地点的确定，是基于公司于2023年获取的Xcalibur航空重力梯度测量和磁测数据，以及于2025年购买并重新处理的旧地震数据的解释。Blythe

13-20井改建为评估井。
修井机于周一抵达Blythe 13-20井，将开始清理井眼并安装井下监测设备，以提供信息，协助设计初步测试方案。该方案计划在所有井钻探完毕并分析完地下数据后进行。

本公告已获董事会授权发布。

Highlights
• Murfin rig 116 has mobilised to McCoy 1 and is rigging up to drill, well is on track to spud later this week.
• McCoy 1 was selected to drill based on encouraging results from Sue Duroche 3, located on the same geological structure on the Nemaha Ridge.
• McCoy 1 is a milestone for the Company as it moves away from "twinning” historical wells to data-driven well locations based on geological understanding and inhouse intellectual property.
• Workover rig has arrived at Blythe 13-20 to convert it to an appraisal well with installation of downhole monitoring equipment taking place this week.

HyTerra Limited (HyTerra or the Company) has increased the number of wells it will drill between April and July 2025 at the Nemaha Project in Kansas, USA from two to three. This exploration program funding is sourced from an investment in the Company by Fortescue Future Industries Technologies Pty Ltd.

McCoy 1 spudding this week
Murfin Rig 116 has arrived at McCoy 1 location and is in the process of rigging up. McCoy 1 well will spud in later this week. McCoy 1 is located on the same geological structure on the Nemaha Ridge as Sue Duroche 3, with the decision to drill based on encouraging results seen in Sue Duroche 3.

The drilling of McCoy 1 is a milestone for the Company as it moves away from "twinning” historical wells to a data-driven process for selecting well locations based on geological understanding and inhouse IP. McCoy 1 drill site location was identified by interpretation of the Company’s Xcalibur Airborne Gravity Gradiometry and Magnetic survey acquired in 2023, and legacy seismic data purchased and reprocessed in 2025.

Blythe 13-20 conversion to appraisal well
The workover rig arrived at Blythe 13-20 on Monday and will begin the process of cleaning the well up and installing downhole monitoring equipment to provide information to assist in the design of an initial testing program planned to be after all the wells have been drilled and the subsurface data has been analysed.

This announcement has been authorised for release by the Board of Directors.