SOLO.L Regulatory News (SOLO)

FOR IMMEDIATE RELEASE, 7:00 am 19 July 2016

SOLO OIL PLC

("Solo" or the "Company")

Upgrade to Portland Oil in Place, Horse Hill-1 Discovery, Weald Basin

Solo today notes the contents of an announcement by UK Oil and Gas Investments plc ("UKOG") that a new petrophysical analysis by Nutech, incorporating the findings of the successful Horse Hill-1 ("HH-1") flow tests, has significantly upgraded the previously calculated total oil in place ("OIP") per square mile within the Upper Portland pay zone at the HH-1 well, from 7.7 million barrels ("mmbbls") per square mile to 22.9 mmbbls per square mile, an increase of 200%. As previously announced the final Horse Hill 1 ('HH-1') Portland test flowed at a stable dry oil rate of 323 barrels of oil per day ('bopd').

Nutech's report notes that the production of dry oil from the Portland Sandstone, with little or no observed water production, required a reassessment of the pre-flow test petrophysical model. Prior to the flow test, interpretations suggested that water would likely be produced along with oil, as is seen in Portland reservoirs in nearby producing oil fields. The revised model fully incorporates the well test observations and measurements.

The HH-1 well is located within onshore exploration licence PEDL137, on the northern side of the Weald Basin near Gatwick Airport. PEDL246 lies adjacent to and immediately to the east of PEDL137. Solo owns a 6.5% interest in the Licences which are operated by Horse Hill Developments Ltd ("Operator").

The Operator has also informed the Company that the flow test data analysis undertaken by Nutech and Xodus provides the necessary technical encouragement to engage Barton Willmore Ltd, one of the UK's leading planning and environmental assessment practitioners, to prepare and submit a planning application to Surrey County Council ("SCC"), and to assist with obtaining necessary permissions from the Environment Agency ("EA"), for an appraisal programme at Horse Hill.

The applications will seek permission to conduct a programme consisting of the production flow testing of three Kimmeridge Limestone zones plus the overlying Portland over a total flow period of up to 360 days, plus two further appraisal/development wells and 3D seismic.

A public consultation and engagement process related to the planning application will take place shortly, leading to an application to SCC and the EA by early fourth quarter 2016.

Engineering studies to examine the range of possible flow rates from a planned horizontal side track well are ongoing. Data to further calibrate these studies will be acquired during the further planned extended flow tests.

Neil Ritson, Solo's Chairman commented:

"Significant progress is being made at Horse Hill building on the results of the very successful flow tests earlier in the year. Solo is pleased that the estimated oil in place has been increased and that the Horse Hill group is proceeding with the next phase of the appraisal of this important discovery."

As previously stated by the Company, the calculated OIP per square mile should not be construed as either contingent resources or reserves.

Qualified Person's Statement:

The information contained in this announcement has been reviewed and approved by Neil Ritson, Chairman and Director of Solo Oil plc who has over 38 years of relevant experience in the energy sector. Mr. Ritson is a member of the Society of Petroleum Engineers, an Active Member of the American Association of Petroleum Geologists and is a Fellow of the Geological Society of London.

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