UK 'Oil & Gas Company Review' - order your free copy

The following is an edited version of the UK 'Oil & Gas Company Review' report. Produced by Energy Key Facts, the service provides a concise, easy access guide to energy activity featuring 140 countries, over 2,000 companies and 3,000+ key personnel.
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* Please note, by clicking on the company headings you can access additional company details as featured in our Oil Industry Directory.
4 Gen Energy UK LTD (4 Gen Energy) is a private company incorporated in 2012, based in the United Kingdom and Canada. 4Gen is focused on developing, securing and testing a world-class portfolio of innovative, high quality and significant oil opportunities in the Central North Sea of the United Kingdom. 
In October 2015, 4Gen Energy UK Ltd and GTO Limited announced the official launch of a Central North Sea oil exploration opportunity with over 130 million barrels of prospective recoverable resource potential (35+ API expected) and an innovative development plan that has the potential to reduce Opex to $8.50 per barrel.
Four prospects comprising ”The DeLorean Complex” have been mapped, utilizing reprocessed 3D with a combined resource potential exceeding 130 MMbbl. The mapping was based on extensive impedance/amplitude work and audited by an engineering firm that confirmed the features to be an analogue to the adjacent redeveloped Argyll field (now known as the Alma field).
4 Gen Energy UK LTD
5th Floor, 17 Hanover Square, London W1S 1HU
4 Gen Capital LLC
1900, 736 – 6 Avenue SW, Calgary, Alberta T2P 3T7
Tel: 858 . 705 . 2400
Addax Petroleum is an international oil and gas exploration and production company with a strategic focus on Africa and the Middle East.
Talisman Sinopec Energy UK Limited (TSEUK), a joint venture company owned 51% by Talisman Energy Incorporated and 49% by Addax Petroleum, is the largest operator in the UK continental shelf. The JV has interests in 46 fields and operates 32 fields, typically with high equity interest. The fields are 100-200 km offshore in water depths between 100 and 200 meters.
Addax Petroleum
16, av. Eugène-Pittard, P.O. Box 265, CH-1211 Geneva 12
Tel: +41 (0)22 702 94 00
Adriatic Oil Plc is a publicly quoted UK-incorporated international oil and gas exploration company with a portfolio of activities focused on the North Celtic Sea, the UK North Sea and the Adriatic Sea Basin.
Adriatic Oil Plc
45 Pont Street, London SW1X 0BD
Tel: +44 (0)20 3178 4060
Alpha Petroleum Exploration Corporation, through its subsidiaries, engages in the investment in international oil and gas production.
In January 2014, Petroleum Equity, a newly-established private equity firm focused on the upstream oil and gas market, announced its first investment through its investment vehicle Alpha Petroleum; the acquisition of ATP Oil & Gas (UK) Limited (ATP UK) from US parent company ATP Oil & Gas Corporation (ATP Corporation).
Alpha Petroleum Exploration Corporation
Victoria House, London Square, Cross Lanes, Guildford, Surrey  GU1 1UJ
Alpha Petroleum Exploration Corporation
1211 North Westshore Boulevard, Suite 511, Tampa, FL 33607, USA
Tel: 813-289-0500
Angus Energy is a UK onshore oil and gas development and production company focused on advancing its portfolio of UK assets and leveraging its cash flow to acquire and monetise additional onshore opportunities.
Angus Energy’s core assets are major interests in, and operatorship of, two production licenses in southern England, the Lidsey and Brockham oil fields, and a 11.05% indirect interest in the Horse Hill oil discovery in the UK’s Weald Basin.
Angus Energy
38 Jermyn Street, Suite 1a, London SW1Y 6DN
Tel:  +44 (0) 207 025 7040
Apache Corporation is one of the world's top independent oil and gas exploration and production companies.
The company delivered full-year 2015 production of 535 thousand barrels of oil equivalent (Mboe) per day and pro forma production of 486 Mboe per day, which represented pro forma growth in North America Onshore and International and Offshore of 3 percent and 13 percent, respectively.
Worldwide estimated proved reserves totaled 1.6 billion barrels of oil equivalent (Boe) at year-end 2015, down from 2.4 billion Boe at year-end 2014. The decrease in reserves is primarily driven by significant divestitures in Australia and Canada.
Apache entered the North Sea in 2003 after acquiring an approximate 97-percent working interest in the Forties field (Forties). Since acquiring Forties, Apache has actively invested in the region having produced and sold oil volumes in excess of the proved reserves initially recorded.
Apache North Sea Limited
Alba Gate, Stoneywood Park, Stoneywood Road, Dyce, AB21 7DZ Aberdeen 
Tel: 44 (0) 1224 756400
Ardent Oil was founded in April 2013 as a privately financed oil & gas exploration company based in London and holds several exploration licences in the UK Central North Sea.
Ardent Oil Ltd.
51 Borough High Street, London, SE1 1NB
Tel: +44 (0) 20 7407 1486
Atlantic Petroleum is a Faroese independent exploration and production (E&P) company with oil and gas interests in the North Sea, the Celtic Sea and on the Faroese Continental Shelf.
Atlantic Petroleum UK Ltd
26-28 Hammersmith Grove, London, W6 7BA 
Tel: +44 (0)20 8834 1045
Atlantic Petroleum P/F
P.O. Box 1228 Gongin 9, FO-110 Tórshavn, Faroe Islands
Tel +298 350100
Aurora Energy Resources Limited is a private UK company engaged in the exploration for oil & gas onshore in the UK.
Following the offer of a licence in the first tranche of the 14th Landward Licensing Round, announced in August 2015, by the Oil & Gas Authority, Aurora Energy Resources announced in December that the company has been awarded two further licences in the second tranche of awards.  The three new licences, covering parts of Lancashire, Merseyside and Greater Manchester, together with AER’s existing PEDL164 licence, increase the company’s 100% equity position in the core of the Bowland Shale exploration area to approximately 110,000 net acres (~445 km2).
Aurora Energy Resources Limited
Westfield Estate, Milltimber, Aberdeen  AB13 0EX
Azinor Catalyst is a Seacrest Capital Group-backed UK E&P company. 
AziNor’s UK portfolio portfolio consists of interests in 15 licences across the Central and Northern North Sea, West of Shetland area and the Rockall Trough.
Azinor Catalyst Ltd
192 Sloane Street, London SW1X 9QX
Azinor Catalyst Ltd
99 Front Street, Hamilton HM12 Bermuda
Tel: +44 (0)20 3588 0065
BP is one of the world's largest petroleum and petrochemicals companies. The company's main activities are exploration for and production of crude oil and natural gas; oil refining, marketing, supply and transportation; and manufacturing and marketing of petrochemicals.
In addition, BP also has a growing activity in gas, power and renewables and in solar power generation. BP has well established operations in Europe, North and South America, Asia, Australasia and Africa.
Overall Group production of oil and gas in the fourth quarter of 2015 averaged 3.4 million barrels equivalent a day.
BP was the first company to find hydrocarbons in the North Sea region, in 1965. The company now have one of the largest asset bases in the region, operating around 30 oil and gas fields, two major terminals and an extensive network of pipelines.
BP Exploration - Aberdeen
Farburn Industrial Estate, Dyce, Aberdeen, AB21 7PB
Tel: +44 (0)1224 832 000
BP Exploration - Sunbury
Chertsey Road, Sunbury-on-Thames, Middlesex, TW16 7LN
Tel: +44 (0)1932 762 000
Cairn Energy PLC is one of Europe’s largest independent oil and gas exploration and production companies. With headquarters in Edinburgh, Cairn is listed on the London Stock Exchange and is part of the FTSE 100.
Cairn has built a strong position in the UK and Norway, as part of its North West Europe portfolio, by acquiring exploration, appraisal, development and production assets and participating in licence rounds. As at August 2015, Cairn holds a total of 22 licences in the UK.
Cairn Energy PLC
50 Lothian Road, Edinburgh EH3 9BY
Tel: +44 131 475 3000
CalEnergy Resources Limited is a subsidiary of MidAmerican Energy Holdings Company, which is headquartered in Des Moines, Iowa, U.S.
Exploration license P2156 (Flynn) was awarded in the UK 28th Seaward Licensing Round Awards on December 1, 2014 and covers Blocks 15/11 and 15/16f. The license is situated on the northern margin of the prolific Witch Ground Graben in the Central North Sea, close to the large Tartan and Piper oil fields.
In 2005, CalEnergy successfully applied for Block 48/1a in the United Kingdom North Sea’s Southern Gas Basin. Adjacent Blocks 48/1c and 47/5b have been subsequently secured.
CalEnergy Resources Limited 
Ground Floor, Peer House, 8–14 Verulam Street, London WC1X 8LZ
Tel: +44 20 7208 1600
Carstone Exploration Limited is a privately owned oil and gas exploration company, founded in 2014 for the 28th UKCS Offshore Licensing Round.  
Carstone and its partner InfraStrata, were offered block 3/11a by the Department of Energy and Climate Change in the UKCS 28th Seaward Licensing Round. Carstone hold a 50% non-operated interest.   
Carstone Exploration Limited 
37 Hill Rise, Rickmansworth, Hertfordshire WD3 7NY 
Celtique Energie Holdings Ltd (Celtique) is a privately owned, British-based oil and gas exploration company with subsidiaries and operations across six European countries (France, Switzerland, Germany, Poland, the UK and Romania).
As part of the Government’s 13th offshore licensing round, Celtique applied to the Department of Energy and Climate Change (DECC) and currently hold an equity share in four PEDL licenses in the Weald area of southern England, one licence in Cheshire and five licences in the East Midlands.
Celtique Energie Holdings Ltd
Henry Wood House, 2 Riding House Street, London W1W 7FA
Tel: +44 20 7255 6100
Centrica Energy's exploration and production business, Centrica Energy Upstream (CEU), was launched in January 2010 following the acquisition of Venture Production and Suncor's Trinidad and Tobago business.
The Central and Northern North Sea (CNS) includes three main operated production hubs plus several assets in which Centrica have a stake. There are currently more than 20 fields mainly producing oil and contributing about 20% of CEU's daily production.
The East Irish Sea hub operates several gas fields for CEU and third party customers in the region. The fields are among the largest in the UK continental shelf in terms of remaining reserves.
The Southern North Sea (SNS) region includes five 'hub' areas, of which four are considered core areas with gas fields at different stages in their life cycle.
Centrica plc
Millstream, Maidenhead Road, Windsor, Berkshire, SL4 5GD
Tel: +44 (0)1753 494000
Centrica Energy Upstream
Kings Close, 62 Huntly Street, Aberdeeen, AB10 1RS
Tel: 01224 619000
Headquartered in San Francisco, Chevron is engaged in every aspect of the oil and gas industry, including exploration and production; refining, marketing and transportation; chemicals manufacturing and sales; and power generation.
Worldwide net oil-equivalent production was 2.67 million barrels per day in fourth quarter 2015, up from 2.58 million barrels per day in the 2014 fourth quarter.
Chevron has interests in 10 offshore producing fields in the United Kingdom. The company operate the Alba, Captain, Erskine and Strathspey fields and are a joint operator of the Britannia Field. The company also has interests in five non-operated fields: Brodgar, Callanish, Clair, Elgin/Franklin and Jade.
Chevron North Sea Limited
Chevron House, Hill of Rubislaw, Aberdeen AB15 6XL
Chevron Corp. Headquarters
6001 Bollinger Canyon Rd, San Ramon CA 94583
Tel: +1.925.842.1000
Chrysaor is an independent exploration and production company established in 2007. The Company is focused on developing and commercialising oil and gas discoveries in the North Sea and Ireland.
In the UK North Sea, the company owns 40% of the Solan licence (P164) covering block 205/26a. The company also has a 100% interest in the Phoenix discovery in licence P1578, covering block 13/22b. This is a near term development opportunity which has been geologically appraised and where the focus is now on commercialisation. The Company was also awarded 3 licenses covering 15 blocks in the UK 27th Licensing Round.
Chrysaor Holdings Limited
4th Floor South, Brettenham House, Lancaster Place, London WC2E 7EN
Tel: 020 3696 2700
CIECO UK is a London based oil and gas E&P company established in 1992 and is a wholly owned subsidiary of ITOCHU Corporation (ITOCHU).
CIECO UK acts as the base office for ITOCHU's oil and gas E&P business, covering activities in the UKCS, Africa, Middle East and CIS.
CIECO Exploration and Production (UK) Ltd
18th Floor, Broadgate Tower, 20 Primrose Street, London, EC2A 2EW
Tel: +44 (0)20 7070 5800
Cluff Natural Resources Plc, is a London based company investing in global resources opportunities with a primary focus on UK based upstream energy projects. CNR currently holds interests in a number of conventional and unconventional offshore gas projects.
In December 2014 the Company was awarded 5 licences carrying 11 blocks in the UK’s 28th Offshore Licensing Round. All of the blocks are located in the Southern North Sea in close proximity to the Breagh Gas Field. The Company believes this is an under-explored, emerging area which is potentially responsive to the latest seismic and drilling technology, where fields can be developed quickly and infrastructure is evolving rapidly. All licences are 100% owned.
Cluff Natural Resources Plc
Third Floor, 5-8 The Sanctuary, London SW1P 3JS 
Tel: +44 (0)20 7887 2630
Canadian Natural Resources Limited is a senior independent oil and natural gas exploration, development and production company based in Calgary, Alberta. Operations are focused in Western Canada, the North Sea and offshore West Africa.
In the UK part of the North Sea, focus is on managing the company’s infrastructure, platform maintenance and mature basin exploitation.
CNR International (U.K.) Limited (Aberdeen)
St. Magnus House, Guild Street, Aberdeen, Scotland
Tel: (01144) 1224303600
On May 1st, 2012 ConocoPhillips completed the spinoff of its downstream businesses to its stockholders. With the completion of this transaction, ConocoPhillips is the world’s largest independent exploration and production (E&P) company, based on proved reserves and production of liquids and natural gas.
Production and Reserves
Production from continuing operations was 1,589 MBOED in 2015, an increase of 57 MBOED compared with 1,532 MBOED in 2014, excluding Libya. Preliminary year-end 2015 proved reserves are 8.2 billion BOE.
ConocoPhillips’ upstream involvement in the United Kingdom began in 1964 when acreage was awarded to the company in the first U.K. licensing round. In 1968, the Viking gas field was discovered, and first gas was produced in 1972. Since then, the U.K. portfolio has grown to include additional operated assets, as well as interests in non-operated assets.
ConocoPhillips (U.K.) Ltd
Rubislaw House, North Anderson Drive, Aberdeen AB15 6FZ
Tel: 01224 205000
ConocoPhillips - Corporate Headquarters
600 North Dairy Ashford (77079-1175), P.O. Box 2197, Houston, TX 77252-2197
Tel: 281-293-1000
Cuadrilla Resources is a UK company based in Staffordshire. Formed in 2007 as a privately owned exploration and production company.
Cuadrilla holds a licence in West Sussex giving the company permission to explore and ascertain what, if any, hydrocarbons are present underground in the region.
Cuadrilla have been exploring for natural gas in Lancashire for four years, and the company believe that at least 200 trillion cubic feet of natural gas is trapped in the shale rock in their licence area.
Cuadrilla Resources Ltd
Cuadrilla House, Stowe Court, Stowe Street, Lichfield, Staffordshire WS13 6AQ
Tel: 01543 266 444
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