The following are the main terms and abbreviations used in this annual report.

CORPORATE

ABI Association of British Insurers

AGM Annual General Meeting

BMP Bureau of Minerals and Petroleum, Greenland

Board the Board of Directors of Cairn Energy PLC

BSE Bombay Stock Exchange

Cairn/Cairn Energy Cairn Energy PLC and/or its subsidiaries as

Cairn India/CIL Cairn India Limited and/or its subsidiaries as appropriate

Cairn India Group Cairn India and/or its previously named subsidiaries as appropriate

Capricorn/Capricorn Group Capricorn Oil Limited (previously named Capricorn Energy Limited) and/or its subsidiaries as appropriate

CEC Chief Executive’s Committee (formerly known as the Group Management Board)

Combined Code The Combined Code dated June 2008

Companies Act The Companies Act 2006 (as amended)

the Company Cairn Energy PLC

DGH Director General of Hydrocarbons

Dyas Dyas BV

EGM Extraordinary General Meeting

EU European Union

FSA Financial Services Authority

GoI Government of India

Group the Company and its subsidiaries

GSCs gas sales contracts

IFC International Finance Corporation

IOC Indian Oil Corporation

IPO Initial public offering of shares in Cairn India Limited

JV Joint Venture

KPIs key performance indicators

Listing Rules The Listing Rules of the United Kingdom Listing Authority

LSE London Stock Exchange

LTIP Long-Term Incentive Plan

medOil medOil plc and/or its subsidiaries as appropriate

MRPL Mangalore Refinery and Petrochemicals Limited (subsidiary of ONGC)

NSE National Stock Exchange of India Limited

OGP International Association of Oil and Gas Producers

OIDA cess Indian Oil Industry (Development) Act 1974

ONGC Oil and Natural Gas Corporation Ltd

Orient Global Orient Global Tamarind Fund Pte Limited

Petronas PETRONAS International Corporation Ltd

Plectrum Plectrum Petroleum Plc and/or its subsidiaries as appropriate

PIRC Pensions Investment Research Consultants Limited

PSC production sharing contract

RIL Reliance Industries Ltd.

RMC Risk Management Committee

RREV Research, Recommendations and Electronic Voting

Santos Santos International Holdings Pty Limited

SEBI Securities and Exchange Board of India

UN United Nations

TECHNICAL

2C best estimate contingent resources

2P proven plus probable

boe barrels of oil equivalent

boepd barrels of oil equivalent per day

bopd barrels of oil per day

EOR enhanced oil recovery

FDP field development plan

MBA Mangala, Bhagyam and Aishwariya

mmbbls million barrels of oil

mmboe million barrels of oil equivalent

mmscf million standard cubic feet of gas

mmscfd million standard cubic feet of gas per day

MPT Mangala Processing Terminal

STOIIP stock tank oil initially in place

ACCOUNTING

$ United States Dollars

bn billion

CIESOP Cairn India Employee Stock Option Plan

CIPOP Cairn India Employee Performance Option Plan

CISMP Cairn India Senior Management Plan

ESOP Employee Share Ownership Plan

IAS International Accounting Standard

IFRIC International Financial Reporting
Interpretations Committee

IFRS International Financial Reporting Standards

LIBOR London Inter-Bank Offered Rate

m million

MAT minimum alternate tax

PTRR post-tax rate of return

TSR total shareholder return

WAEP weighted average exercise price

WAGP weighted average grant price

WANEP weighted average notional exercise price

CORPORATE RESPONSIBILITY

CH4 Methane

CO2E carbon dioxide equivalent

CR Corporate Responsibility

CRMS Corporate Responsibility Management System

EIA Environmental Impact Assessment

ERM Environmental Resource Management

GHG greenhouse gas

LTIFR lost time injury frequency rate

NGO non-governmental organisation

OGP The International Association of Oil and Gas Producers

PCDP Public Consultation and Disclosure Plans

PCP Public Consultation Process

SIA Social Impact Assessment

TRIFR total recordable incident frequency rate