UNION JACK OIL PLC ORD GBP0.05 revenue for the last year amounted to 8.51 M GBP, the most of which — 8.51 M GBP — came from its highest performing source at the moment, Development and Production of Hydrocarbon, the year earlier bringing 1.89 M GBP. The greatest contribution to the revenue figure was made by United Kingdom — last year it brought UNION JACK OIL PLC ORD GBP0.05 8.51 M GBP, and the year before that — 1.89 M GBP.