Union Jack Regulatory News (UJO)

Union Jack Oil plc

(AIM: UJO)

UPDATE ON WRESSLE-1 WELL TESTING - RESULTS OF SECOND PENISTONE FLAGS FLOW TEST AND FORWARD PROGRAMME

Union Jack Oil plc ("Union Jack" or "the Company"), an onshore oil and gas exploration company with a focus on drilling, development and investment opportunities in the United Kingdom hydrocarbon sector, notes that Egdon Resources PLC ("Egdon") has released an RNS regarding the results of the second Penistone Flags flow test at the Wressle-1 oil and gas discovery in licence PEDL180 located to the East of Scunthorpe. Union Jack holds an 8.33 per cent interest in PEDL180.

Egdon's RNS contained the following information:

Zone 3a in the Penistone Flags was perforated over a 7.5 metre interval and has produced good quality oil with a gravity of 33o API. A total of 98.5 barrels of oil were recovered during the test (of which flow induced by swabbing operations produced 34.3 barrels of oil). This equates to approximately 77 barrels of oil per day (bopd).

To date, the Wressle-1 well has flowed oil and gas from three separate reservoirs, the Ashover Grit, the Wingfield Flags and the Penistone Flags. The flow test result from Zone 3a has confirmed the presence of an oil column below the gas leg in Zone 3 of the Penistone Flags.

The downhole pressure and oil sample data from all tests will now be interpreted and integrated into an updated field model to inform future development planning. The next steps in evaluating the discovery will be to undertake a pumped extended well test (EWT) of the Ashover Grit and Penistone Flags oil intervals to quantify the production levels that could be attained during production.

Commenting on the test results and the planned forward programme at Wressle, Mark Abbott Managing Director of Egdon Resources said;

"The results from Wressle continue to be very positive. The latest test has confirmed the presence of an oil column below the gas zone in the Penistone Flags, albeit in tighter sandstones. To date the well has successfully flowed hydrocarbons from four discrete intervals, with the Penistone Flags delivering a facilities restricted gas flowrate of 1.7 mmcfd, plus an aggregate 89 bopd; free-flowing rates of up to 182 bopd and 0.46 mmcfd from the Wingfield Flags and 80 bopd from the Ashover Grit. This totals 710 barrels of oil equivalent per day from all zones.

We are now planning a pumped EWT to validate the optimised production potential that could be obtained from the Wressle discovery. We will now focus on integration and interpretation of the engineering and geotechnical data that will provide the information needed to quantify the resource volumes and optimise the field development and monetisation options. The EWT is planned to commence in mid May with operations expected to continue for up to two months."

For further information please contact the following:

Union Jack Oil plc

David Bramhill +44 (0) 77871 60682

Shore Capital

Nominated Adviser +44 (0) 20 7408 4090

Bidhi Bhoma, Edward Mansfield

Corporate Broking

Jerry Keen

Northland Capital +44 (0) 20 7382 1100

Joint Broker

Alice Lane

Yellow Jersey PR Limited

Public Relations

Dominic Barretto +44 (0)7768 537 739

Kelsey Traynor +44 (0)7799 003 220

Notes to Editors:

The Wressle Oil Discovery

The Wressle Prospect was defined on proprietary 3D seismic data, which was acquired by Egdon in February 2012. The structure is located on trend with the producing Crosby Warren oil field and the Broughton-B1 oil discovery, both to the immediate northwest, and the Brigg-1 oil discovery to the immediate southeast. All contain oil in various different sandstone reservoirs within the Upper Carboniferous succession. The pre-drill gross mean Prospective Resources at Wressle, as calculated by Egdon, were estimated to be 2.1 million barrels of oil. This will be updated following the results of the current test operations.

The Wressle-1 well reached a total depth (TD) of 2240 metres measured depth (MD) (1814 metres true vertical depth below OS datum (TVDSS)) on 23 August 2014. Elevated mud gas readings were observed over large parts of the interval from the top of the Penistone Flags reservoir target (1831.5 metres MD) to TD.

The well was logged using measurement whilst drilling (MWD) logging tools run on the drill string. Petrophysical evaluation of the log data has indicated the presence of potential hydrocarbon pay in three main intervals;

Penistone Flags - up to 19.8 metres measured thickness (15.9 metres vertical thickness)

Wingfield Flags - up to 5.64 metres measured thickness (5.1 metres vertical thickness)

Ashover Grit - up to 6.1 metres measured thickness (5.8 metres vertical thickness)

On 9 February we updated shareholders on the initial successful Ashover Grit Flow Test which recorded 80 barrels of oil per day ("bopd") and 47 thousand cubic feet of gas per day during a 16 hour main flow period. No appreciable volumes of water were observed. The oil is of good quality with a gravity of 39-40° API.

On 19 February we updated shareholders on the initial successful Wingfield Flags Flow Test which recorded up to 182 barrels of oil per day ("bopd") of good quality 39-40 API oil were achieved on free flow, along with up to 456 thousand cubic feet of gas per day.

The interests in the Wressle-1 well are:

Egdon Resources U.K. Limited 25.00% (Operator)

Celtique Energie Petroleum Limited 33.33%

Europa Oil & Gas Limited 33.34%

Union Jack Oil plc 8.33%

Operations at this site will not involve the process of hydraulic 'fracking' for shale gas.