Union Jack Oil plc (AIM: UJO, OTCQB: UJOGF) 是一家专注于英国和美国陆上碳氢化合物生产、开发、勘探和投资的公司。该公司宣布，继公司于2025年8月15日发布的公告之后，欣然提供位于美国俄克拉荷马州中部的Sark油井（“Sark”）的最新情况。Union Jack目前持有Sark油井60%的权益。

· Sark油井的钻探总深度为5,391英尺

· 经评估后，Prue层段在电测井中被突出显示为含碳氢化合物

· Prue层段已从4,586英尺射孔至4,600英尺

· 在抽油过程中回收了石油

· 临时生产设施正在安装中，Sark油井将从2025年10月初开始进行为期30天的测试计划，

测试计划完成后将报告结果。

Union Jack Oil plc (AIM: UJO, OTCQB: UJOGF), a UK and USA focused onshore hydrocarbon, production, development, exploration and investment company, announces that, further to the Company's announcement of 15 August 2025, it is pleased to provide an update on the Sark well ("Sark"), located in Central Oklahoma, USA. Union Jack currently hold a 60% interest in Sark.

· Sark was drilled to a Total Depth of 5,391 feet

· The Prue interval was highlighted on electric logs as hydrocarbon bearing following evaluation

· The Prue interval was perforated from 4,586 to 4,600 feet

· During swabbing oil was recovered

· Temporary production facilities are being installed and Sark will undergo a 30-day test programme, commencing early October 2025

Results from the test programme will be reported on completion.