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Union Jack Oil Announces Directorate Changes

12/01/2026

Union Jack Oil, a UK and USA focused onshore hydrocarbon production, development and exploration company, announces the appointment of Dr. Donald Zac Phillips (“Zac”) and John Americanos as Non-Executive Directors to the Board of Union Jack with immediate effect.  

Dr Phillips, who will join the Board as an independent Non-Executive Director, is a senior energy executive and advisor with extensive experience in the oil and gas sector, advising on asset evaluation, project development and corporate strategy. He is currently a Director of TomCo Plc and provides oil and gas advisory services to investment banks through his company Oil and Gas Advisors Limited. Zac has previously worked for companies such as BP, Chevron, DB Petroleum, Merrill Lynch and ING Barings.  

Dr Phillips is a chemical and petroleum engineer, holding a Masters in Petroleum Engineering and a PhD in Chemical Engineering. He is also a Member of the Institute of Chemical Engineers, a Member of the Society of Petroleum Engineers and a Member of the American Association of Petroleum Geologists. Zac has been providing the Board with independent evaluation support for a number of years.   

Mr Americanos, who will join the Board as a Non-Executive Director, is a Chartered Certified Accountant (FCCA) and a founder and Director of John Alexander Ltd which focuses on the provision of accountancy services to businesses and sole traders. John also has significant experience in UK and international property development.  

The Company also announces that Craig Howie’s office as a Director of the Company has been vacated by a resolution of the Board with immediate effect.  

David Bramhill, Executive Chairman of Union Jack, commented:  
“We have known both Zac and Johnny for many years and welcome them to our Board as nonexecutive directors. Combined, they bring a wealth of technical and commercial skills that we expect will assist in formulating our forward growth strategy during an unprecedented period in the development of Union Jack and given the wider challenges facing the oil and gas sector both onshore UK and internationally. 
“Zac will also assume the role of Senior Independent Director and will assist the executive leadership team in a number of areas including stakeholder liaison and maintaining corporate governance standards.” 

KeyFacts Energy: Union Jack Oil UK country profile   l   KeyFacts Energy news: People on the Move

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