The West Newton A-2 conventional appraisal well, located in east Yorkshire, encountered a 65 metre (net) interval in the Kirkham Abbey formation which was its main target.
Analysis of drill core and logging data indicate a ‘significant liquids’ component within the formation and further well testing is now planned, slated for the current quarter (Q3).
"The initial results of the West Newton A-2 appraisal well exceed our expectations,” said David Bramhill, Union Jack executive chairman.
He added: "We rank the West Newton project very highly and look forward to the results of testing during Q3 2019".
"These encouraging results suggest to us that the West Newton project has the potential to achieve our goal of transforming Union Jack from a junior exploration and production company into a self-sustaining mid-tier hydrocarbon producer".
Pre-drill estimates saw a 189bn cubic feet ‘best estimate’ of the project’s contingent resources. The company noted that it expects the resource estimate will be updated twice, once with the core and log analysis and once after the extended well testing.
Union Jack highlighted that the well also encountered hydrocarbon shows in the deeper Cadeby formation, a secondary target of the programme. It was consistent with prior results from the area, and, included oil saturated core.
The company said it is “highly encouraging” and noted that this target will be tested again from the identified West Newton B location where better reservoir development is expected.