United Oil & Gas PLC / Index: AIM / Epic: UOG / Sector: Oil & Gas

10 October 2025

United Oil & Gas plc

("United" or "the Company")

Publication of Piston Core Presentation - Walton-Morant Licence, Jamaica

United Oil & Gas Plc (AIM: "UOG"), the oil and gas company with a high-impact exploration asset in Jamaica and a development asset in the UK, is pleased to announce that a Piston Core Presentation has been published on the Company's website.

This presentation outlines the scope and objectives of the upcoming piston coring and surface geochemical survey on the Walton Morant licence, and its importance in advancing technical understanding and supporting ongoing farmout discussions.

Key highlights include:

·      Overview of licence scale and potential

·      Summary of recent progress and next steps

·      Objectives and methodology of the piston core survey

·      Introduction to survey operator TDI Brooks International Limited

·      Key findings form the independent Iapetus Geoscience Risking Review

The presentation can be accessed at:

https://www.uogplc.com/investors/presentations/

Brian Larkin, CEO of United Oil & Gas, commented:

"This presentation outlines the next key milestone for United as we prepare to commence the piston coring survey. The programme will involve collecting around 40-60 shallow seabed cores to test for thermogenic hydrocarbons, direct evidence of a working petroleum system within the Walton Morant Basin.

This is a significant step forward realising the potential of the licence and strengthening our position in ongoing farmout discussions.

We remain focused on unlocking value for our shareholders. With several parties under NDA, farm-out discussions are continuing, and the insights gained from the piston core survey are expected to further enhance our position.

We encourage all investors to review the updated presentation to appreciate the scale and potential of the opportunity we are pursuing."

**ENDS**

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Notes to Editors

United Oil & Gas is an oil and gas company with a development asset in the UK and a high impact exploration licence in Jamaica.

The business is led by an experienced management team with a strong track record of growing full cycle businesses, partnered with established industry players and is well positioned to deliver future growth through portfolio optimisation and targeted acquisitions.

United Oil & Gas is listed on the AIM market of the London Stock Exchange. For further information on United Oil and Gas please visit www.uogplc.com