3 April 2023

Union Jack Oil plc

("Union Jack" or the "Company")

Total Voting Rights

Union Jack Oil plc (AIM: UJO), a UK focused onshore hydrocarbon production, development and exploration company, announces, for the purposes of the FCA's Disclosure and Transparency Rules, that the total issued share capital of the Company consists of 112,865,896 ordinary shares of 5 pence each ("Ordinary Shares").

The Company holds 3,050,000 of its Ordinary Shares in treasury. Therefore, the total number of voting rights in the Company is 109,815,896 and this figure may be used by shareholders as the denominator for the calculations by which they can determine if they are required to notify their interest in, or a change to their interest in, the share capital of the Company under the FCA's Disclosure and Transparency Rules.

For further information, please contact

Union Jack Oil plc                                                                                            [email protected]

David Bramhill

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

Nominated Adviser and Joint Broker

Matthew Johnson

Richard Hail

Kasia Brzozowska

Shore Capital                                                                                                     +44 (0)20 7408 4090

Joint Broker

Toby Gibbs

Iain Sexton