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

14 Jan 2026

United Oil & Gas plc

("United" or "the Company")

Survey Vessel Update for Jamaica Offshore Programme

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, provides the following operational update to shareholders.

TDI-Brooks International has advised the Company that their current work programme has been completed and the R/V Gyre is now undertaking pre-mobilisation preparations in Trinidad ahead of its upcoming work programme for United. They are guiding that the vessel will commence mobilisation during the next week for United's planned offshore piston coring and surface geochemical survey on the Walton Morant Licence, offshore Jamaica.

The offshore survey programme will include multibeam echo sounder (MBES) mapping, heat-flow measurements and the collection of seabed piston cores, designed to confirm the presence of thermogenic hydrocarbons and further de-risk the basin.

United continues to coordinate closely with TDI-Brooks and the relevant Jamaican authorities in preparation for mobilisation. A further update will be provided to shareholders once mobilisation from Trinidad has occurred and the vessel is en-route to Jamaica.

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

"We are pleased that the R/V Gyre has completed its prior survey programme and is now preparing to mobilise for United. We continue to work closely with TDI-Brooks and the relevant authorities as we move toward mobilisation, and we look forward to providing a further update once the vessel departs Trinidad."

**ENDS**

Beaumont Cornish Limited ("Beaumont Cornish") is the Company's Nominated Adviser and is authorised and regulated by the FCA. Beaumont Cornish's responsibilities as the Company's Nominated Adviser, including a responsibility to advise and guide the Company on its responsibilities under the AIM Rules for Companies and AIM Rules for Nominated Advisers, are owed solely to the London Stock Exchange. Beaumont Cornish is not acting for and will not be responsible to any other persons for providing protections afforded to customers of Beaumont Cornish nor for advising them in relation to the proposed arrangements described in this announcement or any matter referred to in it.

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