OPCOPCOilfield Production Consultants (OPC) Ltd.Oilfield Production Consultants (OPC) USA,

L.L.C.

Houston - London – Aberdeen - Doha

9001:2008 Registration No. 43049

OPC is a consultancy providing technical and operational support, and expertise to the

exploration and production business

Company History

Founded 1987

Offices:

London (1987)

Aberdeen (1997)

Houston (2002)

Doha (2006)

OPC’s Staff and Associates have worked in over

50 countries around the world, for all the

majors and large independents

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Turnover £ millions

Key OPC Personnel

Piers Johnson, OPC’s Managing Director in London, is a Petroleum Engineer with over 29 years of experience in the UK and international oil industry. He is a Chartered Engineer and a former Chairman of the Society of Petroleum Engineers (SPE) London Section.

Consultant ServicesMark Tizard (Operations Director), Kasia Stefaniuk, Shobha Sharma and Ada Branfield in London along with Alan Sleith and Stuart Hart in Aberdeen, Maribel Renteria in Houston and Scott MacRae (Manager – Middle East) and Jacqui Dabu in Doha have over 55 years’ combined experience in technical recruitment, consultant placements and contract management in the UK and international oil and gas industry.

Projects and StudiesJohn Wright (Technical Director) supported by Dr. Ram Nutakki, a Reservoir Engineer with over 25 years of broad-based experience in reservoir engineering, petrophysics, well test analysis and operations globally, Byron Johnson (Res. Eng.), Sarah Williams (Geoscience), James Blackman (Geologist) and Mike Eastgate (Petroleum Production Engineer)

Bill Roberts, OPC USA’s President in Houston, has over 31 years of worldwide broad-based experience in reservoir engineering, well test analysis and reservoir simulation and is supported by Jeff Hargrove, an all around Petroleum Reservoir Engineer.

TrainingJohn Austin is Manager of Training with 30 years of oil industry experience most recently as a petroleum economist.

OPC ORGANIGRAMOilfield Production Consultants (OPC) Ltd.

9Staff Members

+Consultants

PROJECTS & STUDIESBill Roberts

President OPC USA LLC

PROJECTS & STUDIESJohn Wright

Techincal D irector

Consultants6000 + Available

60 Working

14Staff Members

CONSULTANTSM ark Tizard

Operations D irector

5Staff Members

IT & OFFICE SERVICESAdrian Cahill

Office M anager

TRAININGJohn Austin

M anager

EXECUTIVE BOARD Managing Director Operations Director Technical Director President OPC USA LLC

Piers Johnson Mark Tizard John Wright Bill Roberts

28 Staff Members

Projects & Studies: Well testing / well test interpretation, reservoir surveillance on intelligent wells, integrated sub-surface studies, reserves and asset evaluations. KINGDOM, ECLIPSE & PETREL available in house.

Provides Consultants and staff: High calibre consultants from OPC's extensive technical resources. Search for and selection of permanent members of staff can be entertained

Training: well testing, reservoir engineering, reservoir management and characterization; off the shelf or client-tailored courses in all E & P disciplines

What does OPC do?

Retain clients

Look after and retain consultants

Retain in-house technical subsurface and production skills and to support the consultants with technical expertise

Provide the right people for the right job

Offer a choice to our clients – in-house or in their offices or on their sites

What does OPC do well?

Partial list of Clients

Agip/ENI

Amerada Hess

Aminex

Anadarko

BG Group

BHP Billiton

BP

Cairn Energy

Centrica

CNR

CanArgo

ConocoPhillips

Devon

ExxonMobil

Europa Oil & Gas

Gaz de France

IPC/Lundin

JKX Oil & Gas

Maersk Oil & Gas

Murphy Oil

Noble Energy

Northern Petroleum

Premier Oil

Mariner Energy

Perenco

Petro-Canada

Qatar Petroleum

RasGas

Repsol

RWE-Dea

Shell

Sibir Energy

SIEP

StatoilHydro

Texaco

Total

Talisman Energy

Tethys Petroleum Ltd.

Tullow Oil

Countries where we have worked

RussiaSaudi ArabiaSouth AfricaSpainSudanTajikistanTanzaniaThailandTunisiaTurkmenistanU.K.U.S.A.UkraineVenezuelaYemen

LibyaMalaysiaMaltaNamibiaNetherlandsNigeriaNorwayOmanPeruPhilippinesPolandPortugalQatarRomania

DubaiEcuadorEgyptFranceGabonGeorgiaGermanyIndonesiaIranIrelandItalyJapanKazakhstanKoreaKuwait

AlbaniaAlgeriaAngolaArgentinaAustraliaAzerbaijanBoliviaBrazilBruneiChileChinaColombiaCongoDenmark

…..and others

Contract Positions Examples

Well Test Engineer 1 month Asia Operations Geologist 12 months Middle East Reservoir Engineer 9 months Aberdeen Technical Assistant 6 months Aberdeen Rigless Testing Engineer 1 year Africa Asset Manager Short term London Cost Engineer 5 day project London HSE Engineer 2 years UK / Asia Operations Manager 7 years FSU Development Geologist 2 weeks USA

Field development planning/reservoir management

Reservoir simulation studies

Material balance

Well test analysis, planning and supervision

Reservoir Surveillance with permanent DH gauges

Phase behaviour/equation of state modelling

Uncertainty analysis

Reserves estimation

Reservoir Engineering

Familiar with most commercial simulators

– Eclipse (in house)

– VIP (Landmark)

– CMG

– Merlin

– MoReS (Shell)

Upscaling from geological models

– Petrel (in house)

– IRAP RMS

– Stratamodel

Reservoir Simulation

Extensive experience with Petrel and IRAP RMS Building complex 3D structural reservoir models Mapping of formation tops and thickness and developing

well to well correlations Reservoir facies and petrophysical property modelling Facies (object) modelling for complex heterogeneous

reservoirs such as fluvial channel reservoirs Detailed reservoir volumetrics by zones and segments Well planning of deviated, horizontal and multilateral wells Creating reservoir models for use in dynamic reservoir

simulation Stochastic modelling Seismic interpretation Seismo-stratigraphic interpretation Exploration, development and appraisal interpretation

3D Geological Modeling andSeismic Interpretation

Extensive experience with ECLIPSE, and highly qualified staff

Black-oil simulation

Equation of state modelling

Compositional simulation

History matching and forecasts

Modelling of horizontal wells and fractured reservoirs

Modelling of hydrocarbon, CO2 miscible floods, and water and steam floods.

Modelling of gas condensate and tight gas reservoirs

Upscaling of complex 3D geological models for simulation

Conversions of data sets between simulators

Reservoir Simulation

Reservoir simulation of heterogeneous North Sea channel reservoir evaluating multiple geological realisations

Geological modelling / reservoir simulation deepwater GOM

Reservoir study of large shallow Russian heavy oilfield

Evaluation of gas storage project in North Sea

Reservoir simulation and evaluation of Middle Eastern gas fields

Reservoir simulation study of Indian oilfield

Evaluation of Algerian oil and gas fields

Reservoir simulation of Hungarian gas fields

Evaluation of Tunisian oil and gas fields

Update of reservoir simulation models of Libyan oilfields

Geological modelling and reservoir simulation of Nigerian oilfields

Reservoir engineering and AIM floatation for Russian assets

Recent Projects

Software (In-house)

FROM NEOTEC

WELLFLO & PIPEFLO (multiphase wellbore hydraulics and pipelines software)

FORGAS (Field wide gas production forecasting software)

FROM WELL TEST SOLUTIONS LTD (UK)

PIE - Well test interpretation software

FROM OTHER VENDORS

Eclipse & Petrel from Schlumberger, Kingdom suite from SMT

FROM PETROLEUM EXPERTS

MBAL – Material Balance software

Reserves Audits

OPC has undertaken reserves audits in respect of statutory and fiscal reporting, floatations and funding. OPC can report to SEC, SPE, Russian, Norwegian and other standards and is recognized as a Competent Person by the London Stock Exchange

Reserves Audit Examples:

Client confidential

Independent Petroleum Engineer (IPE) report to support development funding from a major European Bank

Client confidential

UK company with US assets : Competent Person’s Report for AIM flotation

Client confidential

UK company with assets in Kazakhstan : Competent Person’s Report in support of flotation or mezzanine financing

Training

Specialist technical courses offered include:

Well Test Analysis (Basic and Advanced),

Reservoir Engineering

Reservoir Characterization

Reservoir Surveillance

Petroleum Economics & Risk Analysis

Project Management

Integrated training packages for in-house teams– Covers all technical & commercial disciplines

– Coordinated work processes and information flows

– Encourages project teams to operate more effectively

Contacting OPC

Consultants Mark Tizard in London london@opc.co.ukStuart Hart in Aberdeen aberdeen@opc.co.ukRich Schoen in Houston houston@opc-usa.netScott MacRae in Qatar qatar@opc.co.uk

Projects and StudiesJohn Wright in London london@opc.co.ukBill Roberts in Houston houston@opc-usa.net

TrainingJohn Austin in London london@opc.co.ukBill Roberts in Houston houston@opc-usa.net

Telephone London: +44 (0) 20 7428 1111 FAX: +44 (0) 20 7428 1122 Aberdeen: +44 (0) 1224 329 111 FAX: +44 (0) 1224 329 112

Houston: +1 713 973 2151 FAX: +1 713 243 8754 Qatar: +974 495 4648 FAX: +974 495 4649

Websites www.opc.co.uk www.opc-usa.net