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  • Glossary

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    Glossary

    A

    AGM

    Annual General Meeting

    AFS

    Available for sale

    B

    bll

    Barrel

    bcf

    Billion cubic feet

    boe

    Barrels of oil equivalent

    boepd

    Barrels of oil equivalent per day

    bopd

    Barrels of oil per day

    C

    CMS

    Caister Murdoch System

    CMS III

    A group development of five satellite fields linked to CMS

    CR

    Corporate Responsibility

    CSO

    Civil Society Organisation

    CNOOC

    China National Offshore Oil Corporation

    D

    DLT

    Development Leadership Team

    DoA

    Delegation of Authority

    DRC

    Democratic Republic of Congo

    DSBP

    Deferred Share Bonus Plan

    E

    EA

    Exploration Area

    E&E

    Exploration and evaluation

    E&A

    Exploration and Appraisal

    E&P

    Exploration and Production

    EBITDA

    Earnings Before Interest, Tax, Depreciation and Amortisation

    EHS

    Environment, Health and Safety

    EMS

    Environmental Management System

    ERC

    Energy Resource Consultants

    ESOS

    Executive Share Option Scheme

    F

    FEED

    Front End Engineering and Design

    FPSO

    Floating Production Storage and Offloading vessel

    FRC

    Financial Reporting Council

    FRS

    Financial Reporting Standard

    FTG

    Full Tensor Gravity Gradiometry

    FTSE 100

    Equity index whose constituents are the 100 largest UK listed companies by market capitalisation

    FVTPL

    Fair Value Through Profit or Loss

    G

    GELT

    Global Exploration Leadership Team

    GNPC

    Ghana National Petroleum Corporation

    GoU

    Government of Uganda

    Group

    Company and its subsidiary undertakings

    H

    H&S

    Health and Safety

    HIPO

    High Potential Incident

    HNBS

    Hewitt New Bridge Street

    HR

    Human Resources

    I

    IAS

    International Accounting Standard

    IASB

    International Accounting Standards Board

    IFRIC

    International Financial Reporting Interpretations Committee

    IFRS

    International Financial Reporting Standards

    IMS

    Information Management System

    ISO

    International Organization for Standardization

    K

    km

    kilometres

    KPI

    Key Performance Indicator

    L

    LIBOR

    London Interbank Offered Rate

    LTI

    Lost Time Incident

    LTIFR

    LTI Frequency Rate measured in LTIs per million hours worked

    M

    mmbbl

    Million barrels

    mmbo

    Million barrels of oil

    mmboe

    Million barrels of oil equivalent

    mmscfd

    Million standard cubic feet per day

    MoU

    Memorandum of Understanding

    MTM

    Mark To Market

    N

    NGO

    Non-Governmental Organisation

    O

    OR&A

    Operational Readiness and Assurance

    P

    p

    pence

    P10

    Reserves and/or resources estimates that have a 10 per cent probability of being met or exceeded

    P50

    Reserves and/or resources estimates that have a 50 per cent probability of being met or exceeded

    P&D

    Production and Development

    PAYE

    Pay As You Earn

    PRT

    Petroleum Revenue Tax

    PSC

    Production Sharing Contract

    PSP

    Performance Share Plan

    S

    SCT

    Supplementary Corporation Tax

    SIP

    Share Incentive Plan

    SMC

    Senior Management Committee

    SPA

    Sale and Purchase Agreement

    sq km

    Square kilometres

    SRI

    Socially Responsible Investment

    T

    toes

    Tullow Oil Environmental Standards

    TSR

    Total Shareholder Return

    U

    UK GAAP

    UK Generally Accepted Accounting Principles

    V

    VAT

    Value Added Tax

    W

    WAEP

    Weighted Average Exercise Price

    WCTP

    West Cape Three Points

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Statement of Directors' responsibilities

The Directors are responsible for preparing the Annual Report and the financial statements in accordance with applicable law and regulations.

Company law requires the Directors to prepare financial statements for each financial year. Under that law the Directors are required to prepare the Group financial statements in accordance with International Financial Reporting Standards (IFRSs) as adopted by the European Union and Article 4 of the IAS Regulation and have elected to prepare the parent company financial statements in accordance with United Kingdom Generally Accepted Accounting Practice (United Kingdom Accounting Standards and applicable law). Under company law the Directors must not approve the accounts unless they are satisfied that they give a true and fair view of the state of affairs of the company and of the profit or loss of the company for that period.

Company

In preparing these financial statements, the Directors are required to:

  • Select suitable accounting policies and then apply them consistently;
  • Make judgements and estimates that are reasonable and prudent;
  • State whether applicable UK Accounting Standards have been followed, subject to any material departures disclosed and explained in the financial statements; and
  • Prepare the financial statements on the going concern basis unless it is inappropriate to presume that the Company will continue in business.

Group

In preparing the Group financial statements, International Accounting Standard 1 requires that Directors:

  • Properly select and apply accounting policies;
  • Present information, including accounting policies, in a manner that provides relevant, reliable, comparable and understandable information;
  • Provide additional disclosures when compliance with the specific requirements in IFRSs is insufficient to enable users to understand the impact of particular transactions, other events and conditions on the entity's financial position and financial performance; and
  • Make an assessment of the Group's ability to continue as a going concern.

The Directors are responsible for keeping proper accounting records that are sufficient to show and explain the Company's transactions and disclose with reasonable accuracy at any time the financial position of the Company and enable them to ensure that the financial statements comply with the Companies Act 2006.

They are also responsible for safeguarding the assets of the Company and hence for taking reasonable steps for the prevention and detection of fraud and other irregularities.

The Directors are responsible for the maintenance and integrity of the corporate and financial information included on the Company's website. Legislation in the United Kingdom governing the preparation and dissemination of financial statements may differ from legislation in other jurisdictions.

Directors' responsibility statement

We confirm that to the best of our knowledge:

  • The financial statements, prepared in accordance with relevant financial reporting framework, give a true and fair view of the assets, liabilities, financial position and profit or loss of the Company and the undertakings included in the consolidation taken as a whole; and
  • The management report, which is incorporated into the Directors' report, includes a fair review of the development and performance of the business and the position of the Company and the undertakings included in the consolidation taken as a whole, together with a description of the principal risks and uncertainties that they face.

By order of the Board

Aidan J. Heavey's signature

Aidan J. Heavey
Chief Executive Officer
13 March 2012

Ian Springett's signature

Ian Springett
Chief Financial Officer
13 March 2012