UK Oil & Gas Investments PLC

("UKOG" or the "Company")

Acquisition of a Further Interest in Onshore Licence PEDL143,

Holmwood-1 Kimmeridge & Portland Exploration Prospect, Weald Basin, UK

UK Oil & Gas Investments PLC (London AIM: UKOG) is pleased to announce that it has agreed to acquire a further 10% interest in Licence PEDL143 ("the Licence") from Warwick Energy Exploration and Production Limited ("Warwick"). Upon completion, the Company will hold a 40% interest in the Licence, which is currently operated by Europa Oil & Gas Limited.

The Licence, covering an area of 91.8 km², contains the Holmwood prospect, which provides a near -term opportunity to test Kimmeridge, Portland and Corallian reservoir targets lying within a look-alike geological feature to both the Company's Horse Hill-1 ("HH-1") oil discovery, located some 8.5 km to the east, and the Broadford Bridge-1 and 1z discovery located some 24 km to the south. As previously reported on 21 March 2016, HH-1 flow tested at a significant commercial aggregate stable dry oil rate of 1,688 barrels of oil per day from the two uppermost Kimmeridge Limestone units and the overlying Portland.

Planning consent from Surrey County Council is in place to drill and flow test the Holmwood-1 exploration well, which is now scheduled for the coming winter season.

Transaction Summary

For a Purchase Price of £750,000, the Company will receive Warwick's 10% working interest in the Licence. The total Purchase Price is payable via the issue to Warwick of 9,382,271 new ordinary shares in UKOG with an effective date of 22 September 2017. Completion of the acquisition is conditional upon the Oil and Gas Authority's usual regulatory consent. Upon completion, the Company's Holmwood-1 farmout obligation to Warwick will cease.

A further announcement will be made upon completion.

Stephen Sanderson, UKOG's Executive Chairman, commented:

"This acquisition is another step in UKOG's strategy to further consolidate and increase its holdings in the Kimmeridge oil play. The forthcoming Holmwood well provides a valuable near-term opportunity to test a geological look-alike of both our Broadford Bridge and Horse Hill oil discoveries, and which can hopefully provide further proof of the new Kimmeridge play concept. The significant overlying Portland target also provides additional low-risk potential reserve upside. We look forward to the well's spud in the coming winter and the valuable information it will provide for our quest to monetise the Company's Kimmeridge and Portland oil."

Qualified Person's Statement:

Stephen Sanderson, UKOG's Executive Chairman, who has over 35 years of relevant experience in the oil industry, has approved the information contained in this announcement. Mr Sanderson is a Fellow of the Geological Society of London and is an active member of the American Association of Petroleum Geologists.

For further information, please contact:

UK Oil & Gas Investments PLC

Stephen Sanderson / Kiran Morzaria Tel: 01483 243450

WH Ireland (Nominated Adviser and Broker)

James Joyce / James Bavister Tel: 020 7220 1666

Cenkos Securities PLC (Joint Broker)

Nick Tulloch / Neil McDonald Tel: 0131 220 6939

Square 1 Consulting (Public Relations)

Brian Alexander / David Bick Tel: 01483 243450

Glossary

discovery	a discovery is a petroleum accumulation for which one or several exploratory wells have established through testing, sampling and/or logging the existence of a significant quantity of potentially moveable hydrocarbons
flow test	a test period where hydrocarbons are flowed to surface through a test separator. Key measured parameters are oil and gas flow rates, downhole pressure and surface pressure. The overall objective is to identify the well's capacity to produce oil at a commercial flow rate and to recover oil in commercial quantities or volumes
limestone	a sedimentary rock predominantly composed of calcite (a crystalline mineral form of calcium carbonate) of organic, chemical or detrital origin. Minor amounts of dolomite, chert and clay are common in limestones. Chalk is a form of fine-grained limestone, being made of the remains of calcareous planktonic algae called coccoliths. The Kimmeridge Limestones are comprised of fine grained coccoliths, fine grained calcium carbonate mud, clay minerals, together with dark grey organic matter.

UKOG Licence Interests

The Company has interests in the following ten UK licences:

Asset	Licence	UKOG's Interest	Licence Holder	Operator	Area (km²)	Status
Avington ¹	PEDL070	5%	UKOG (GB) Limited	IGas Energy Plc	18.3	Field in stable production
Baxters Copse ²	PEDL233	50%	UKOG Weald Limited	IGas Energy Plc	89.6	Appraisal/development well planned; licence extended to 2018
Broadford Bridge ³	PEDL234	100%	Kimmeridge Oil & Gas Limited ⁴	Kimmeridge Oil & Gas Limited ⁴	300.0	BB-1&1z drilling completed testing underway
Holmwood ³	PEDL143	40%	UKOG	Europa Oil & Gas (Holdings) plc	91.8	Holmwood-1 exploration well planned in 2017
Horndean ¹	PL211	10%	UKOG (GB) Limited	IGas Energy Plc	27.3	Field in stable production
Horse Hill ⁵	PEDL137	32.435%	Horse Hill Developments Ltd ^⁶	Horse Hill Developments Ltd ^⁶	99.3	Submitted planning application for long term production tests and drilling of two wells
Horse Hill ⁵	PEDL246	32.435%	Horse Hill Developments Ltd^⁶	Horse Hill Developments Ltd ^⁶	43.6	As above
Isle of Wight (Offshore) ³	P1916	100%	UKOG Solent Limited	UKOG Solent Limited	46.7	Preparing drilling planning submission
Isle of Wight (Onshore) ^{2, 3}	PEDL331	65%	UKOG	TBA	200.0	Preparing drilling planning submission
Markwells Wood ²	PEDL126	100%	UKOG (GB) Limited	UKOG (GB) Limited	11.2	Submitted planning application for appraisal and field development

Notes:

1. Oil field currently in production.

2. Oil discovery pending development and/or appraisal drilling.

3. Exploration asset with drillable prospects and leads. Contains the Broadford Bridge-1 and 1z discovery well and the extension of the Godley Bridge Portland gas discovery.

4. UKOG has a 100% interest in Kimmeridge Oil & Gas Limited, which has a 100% interest in PEDL234.

5. Oil discovery with recently completed flow testing.

6. UKOG has a direct 49.9% interest in HHDL, which has a 65% interest in PEDL137 and PEDL246.

The information contained within this announcement is deemed by the Company to constitute inside information under the Market Abuse Regulation (EU) No. 596/2014.