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Independent Oil &Gas (IOG)

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Thursday 12 October, 2017

Independent Oil &Gas

CPR Confirms Significant Reserves Upgrade

RNS Number : 3782T
Independent Oil & Gas PLC
12 October 2017

12 October 2017

Independent Oil and Gas plc

CPR Confirms Significant Reserves Upgrade


Independent Oil and Gas plc ("IOG" or the "Company"), the development and production focused Oil and Gas Company, is pleased to announce the results of a Competent Person's Report ("CPR") on the Vulcan Satellites, Blythe and Elgood assets by ERC Equipoise Limited ("ERCE") as at 1 October 2017.


·     CPR confirms 2P gas Reserves of 303 BCF (54 MMBoe), previously 34 BCF, in IOG's UK Southern North Sea ("SNS") gas portfolio

·   2P Reserves classification applied to all of IOG's development assets: the Vulcan Satellites, Blythe and Elgood

Vulcan Satellites 2P Reserves of 248 BCF

Blythe 2P Reserves of 33 BCF, in line with 2013 CPR

Elgood 2P Reserves of 22 BCF

·      CPR estimates a 2P peak production rate in excess of 200 MMcfd (c. 35,000 Boe/d)

·      Significant prospective resources in Harvey to be published in a forthcoming separate CPR

CPR Process:

During 2017, IOG built its own proprietary static geological model based on interpretation of the reprocessed 3D seismic available from multiple surveys across the whole SNS portfolio.  This resulted in a robust and consistent estimation of the gas in place volumes in all the Company's SNS gas assets. This was followed by dynamic reservoir modelling and optimal well design and placement, including hydraulic stimulation modelling for the Vulcan Satellite fields.  This in turn enabled the development of production forecasts for each field.  ERCE reviewed IOG's proprietary subsurface work, production forecasts, costs and economic assumptions.  ERCE then made its own independent assessment of the recoverable Reserves from the portfolio, the project development and operating costs and the resultant economics as summarised below.


The CPR presents the economic Reserves and valuation of IOG's five development fields as at 1 October 2017 using data and information available up to 30 September 2017 and applying the PRMS standard.  The table below shows the CPR estimates of Reserves and Net Present Values, both undiscounted and discounted at 10% ("NPV10") for IOG's 100% interests in the fields.

Vulcan Satellites, Blythe and Elgood





Economic Gas Reserves





Oil Equivalent Reserves (incl. condensate)





Post-Tax NPV10 (incl. IOG's tax losses)

(£ million)




Pre-Tax NPV10

(£ million)




Pre-Tax NPV0 (undiscounted)

(£ million)





A copy of the CPR executive summary is available on the IOG website: -

Vulcan Satellite Field names:

As part of the field determination process, IOG has formally applied to register the field names for the Vulcan Satellite fields.  Subject to the approval of the UK Oil and Gas Authority, Vulcan North West will become Nailsworth, Vulcan East will become Elland and Vulcan South will become Southwark.  Nailsworth, Elland and Southwark will still collectively be known as the Vulcan Satellites.


Mark Routh, CEO and Interim Chairman of IOG commented:

"We are extremely pleased with the results of the CPR on our SNS development portfolio.  IOG now holds independently verified 2P gas Reserves of 303 BCF / 54 MMBoe with a 2P peak production rate of more than 200 MMcfd and a 2P NPV10 valuation of £321 million.  This is a major landmark for our portfolio and clear vindication of our strategy of acquiring neglected and stranded assets at low cost, to be commercialised via our gas hub strategy using the Thames Pipeline export route.

In addition to confirming substantial volumes, the classification as reserves is a key step towards securing development funding.  Our submission of the Field Development Plan for the Vulcan Satellites hub, expected later this month, will be the next important step in that regard.  We also expect to confirm further key project contractors in the coming weeks.

In addition, we shortly expect to receive a further CPR on the Harvey structure which provides very material upside to our portfolio."



The information communicated in this announcement is inside information for the purposes of Article 7 of Regulation 596/2014.



Independent Oil and Gas plc

Mark Routh (CEO)

James Chance (CFO)

+44 (0) 20 3879 0510

finnCap Ltd

Christopher Raggett / Anthony Adams
(Corporate Finance)

+44 (0) 20 7220 0500


Georgia Edmonds / Tom Huddart

+44 (0) 20 3757 4980






the Proved Reserves;




the sum of Proved plus Probable Reserves;




the sum of Proved plus Probable plus Possible Reserves;



"BCF" or "bscf"

billion (109) standard cubic feet;



barrels of oil equivalent.  One barrel of oil is approximately the energy equivalent of 5,800 standard cubic feet of natural gas;




Barrels of oil equivalent per day;




millions (106) of barrels of oil equivalent;



"MMcfd" or "MMscfd"

millions (106) of standard cubic feet per day;



"Proved Reserves"

those quantities of petroleum which, by analysis of geological and engineering data, can be estimated with reasonable certainty to be commercially recoverable, from a given date forward, from known reservoirs and under current economic conditions, operating methods and government regulations.  Proved reserves can be categorised as developed or undeveloped.  If deterministic methods are used, the term reasonable certainty is intended to express a high degree of confidence that the quantities will be recovered.  If probabilistic methods are used, there should be at least a 90% probability that the quantities actually recovered will equal or exceed the estimate;



"Probable Reserves"

those unproved reserves which analysis of geological and engineering data suggests are more likely than not to be recoverable.  In this context, when probabilistic methods are used, there should be at least a 50% probability that the quantities actually recovered will equal or exceed the sum of estimated Proved plus Probable reserves;


"Possible Reserves"

those additional reserves which analysis of geological and engineering data suggests are less likely to be recoverable than Probable Reserves.  In this context, when probabilistic methods are used, there should be at least a 10% probability that the quantities actually recovered will equal or exceed the sum of estimated Proved plus Probable plus Possible reserves;




The SPE/WPC/AAPG/SPEE Petroleum Resources Management System for Reserves and Resources Classification;




those quantities of hydrocarbons which are anticipated to be commercially recovered from known accumulations;


"standard cubic feet" or "scf"

standard cubic feet measured at 14.7 pounds per square inch and 60 degrees Fahrenheit







About Independent Oil and Gas:

IOG owns substantial low risk, high value gas Reserves in the UK Southern North Sea.  The Company is targeting a 2P peak production rate in excess of 200 MMcfd (c. 35,000 Boe/d) from its substantial current portfolio via an efficient hub strategy.  Alongside this it continues to pursue value accretive acquisitions, to generate significant shareholder returns.  All of IOG's licences are owned 100% and operated by IOG.

About ERC Equipoise Limited:

ERCE is an independent consultancy specialising in geoscience evaluation and engineering and economics assessment.  Except for the provision of professional services on a time-based fee basis, ERCE has no commercial arrangement with any other person or company involved in the interests which are the subject of this report.

ERCE has the relevant and appropriate qualifications, experience and technical knowledge to appraise the assets professionally and independently.  ERCE considers that the scope of the CPR is appropriate and includes and discloses all information required to be included therein and was prepared to a standard expected in accordance with the AIM Rules.

Competent Person's Statement

In accordance with the AIM Note for Mining and Oil and Gas Companies, IOG discloses that Mark Routh, IOG's CEO is the qualified person that has reviewed the technical information contained in this document.  Mark Routh has an MSc in Petroleum Engineering and has been a member of the Society of Petroleum Engineers since 1985.  He has over 35 years' operating experience in the upstream oil and gas industry.  Mark Routh consents to the inclusion of the information in the form and context in which it appears.

Further information can be found on

This information is provided by RNS
The company news service from the London Stock Exchange

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