REG - Union Jack Oil PLC - Sark Well Central Oklahoma USA Update

Union Jack OilAnnouncement

24/09/2025 07:00

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RNS Number : 5162A  Union Jack Oil PLC  24 September 2025

24 September 2025

This announcement contains inside information for the purposes of Article 7 of
the Market Abuse Regulation (EU) 596/2014 as it forms part of UK domestic law
by virtue of the European Union (Withdrawal) Act 2018 ("MAR"), and is
disclosed in accordance with the Company's obligations under Article 17 of
MAR.

 

Union Jack Oil plc

("Union Jack" or the "Company")

Sark Well Central Oklahoma USA Update

 

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.

 

For further information, please contact:

 

Union Jack Oil plc  info@unionjackoil.com

David Bramhill

 

SP Angel Corporate Finance LLP          +44 (0)20 3470 0470

Nominated Adviser and Joint Broker

Matthew Johnson

Richard Hail

Jen Clarke

 

Zeus
+44 (0)20 3829 5000

Joint Broker

Antonio Bossi

Simon Johnson

George Duxberry

 

Gneiss Energy
Limited
                       + 44 (0)20 3983 9263

Financial Adviser

Jon Fitzpatrick

Paul Weidman

Harbour
Access
  +1 (475) 477 9402

USA Investor Relations

Jonathan Paterson

 

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