As India advances toward energy self-reliance and sustainable growth, Cairn Oil & Gas, Vedanta continues to lead transformative change in the energy sector with sustainability at its core. Guided by the theme “Inspiring Actions, Fostering Impact,” Cairn focuses on turning inspiration into meaningful change across its ecosystem.

For over three decades, Cairn has evolved with global sustainability trends, pioneering innovative and future-ready solutions aligned with India’s socio-economic and environmental priorities. As the first Indian oil and gas company to join the UN Environment Programme’s Oil and Gas Methane Partnership 2.0, we reaffirm our commitment to reducing methane emissions and advancing towards Net Zero Carbon by 2030.

Beyond operations, our initiatives empower communities, promote inclusion, and strengthen the overall ESG ecosystem through climate resilience, economic upliftment, sustainable livelihoods, a strong health and safety culture, and a workplace that inspires growth, nurtures talent and fosters growth.

Corporate Overview

Cairn has a vision to contribute 50% of domestic hydrocarbon production
Established R&R Base 1.4 MMBOE Gross proved, probable reserves and resources
50+ Discoveries made
469 wells drilled & 341 wells hooked up in since 2017
Operational Production 103,237 BOEPD in FY 2025

Operation Overview

Cairn’s Ownership
5 Production Sharing Contracts
Rajasthan
(RJON90/1)*

70%

Cambay
(CB-OS2)

40%

Ravva
(PKGM-1)

22.5%

KG-ONN
-2003/1 - **

49%

KG-OSN
-2009/3

100%

58 Revenue Sharing Contracts
OALP
(Blocks: 53)

100%

DSF
(Blocks: 4)

100%

CBM
(Block: 1)

100%

*50% of shares in the RJ block is held by a subsidiary of Vedanta Limited

**Non-operating asset
(As on 31st March 2025)

Unlocking Value, Driving Impact

Recovery enhancement through ASP
Monetise deep water block development in KG basin
Ramp up production from tight oil reservoirs
Monetising the first DSF block
Maximising Reserves and Production of the shale field via technology

ESG Performance Highlights

~305,220 tCO2e
Reduction in GHG emissions in last 5 years
57%
Reduction in flaring volume of potential gas over last 5 years
3.11 million GJ
Energy conserved in last 5 years
0.792 million*
trees (incl. Mangroves) planted in the last
2 years
*~40% of 2030 goal of 2 million trees
1.17 million kL
Water conserved in the
last 5 years
1.18
Net Positive Water Impact (NPWI) index in FY 2025
>84%
Water recycling rate in FY 2025
97%
Produced water recycled through reinjection
98%
of hazardous waste diverted for gainful utilisation*
* Gainful utilisation either through coprocessing for AFR (Alternate Fuel or Raw Material) or recycling/ reprocessing
132,220 bbls
Hydrocarbon recovered by Oily sludge processing in last 5 years
1st Indian Company to join OGMP* 2.0

program by signing MoU with UNEP for methane mitigation
*(Oil & Gas Methane Partnership)
INR 11,044 crore
Net Revenue in FY 2025
INR 4,664 crore
EBIDTA in FY 2025
INR 10,195 crore
Contribution to the state and national exchequer in FY 2025
INR 250,815 crore
($ 41.31 billion)
Cumulative Exchequer since inception
103,237 BOEPD
Average Gross Operated Production for FY 2025
RUDRA
New hydrocarbon discovery in North-East region,
(EUR of ~6 mmboe)
~73,000 Sq. Km
Acreage across 63 blocks in India
34
wells drilled* and 26 wells brought online in FY 2025
* Includes 6 exploration wells

Chairman's Message

Our environmental initiatives over the past two years, including the plantation of 7.92 lakh trees and preserving mangroves have created vital carbon sinks while fostering rich biodiversity corridors.
Dear Valued Stakeholders,
Energy is the lifeline of India’s economy and the key to rising prosperity. India is charting its own, unique course towards a Viksit Bharat in which growth and sustainability will go side by side. I am pleased to present to you Cairn Oil & Gas’ Sustainability Report 2025. This report reflects our continued commitment to responsible growth, shaping India’s energy security, and building a resilient and a better tomorrow for all.

Anil Agarwal

Chairman, Vedanta Limited

Materiality

HIGH PRIORITY MATERIAL TOPICS

  • Health, Safety and Well-being
  • Business Ethics and Corporate Governance
  • Water Resource Management
  • Community Engagement and Development
  • Long-term Growth and Profitability
  • Talent Attraction and Retention
  • Climate Change and Energy Transition
  • Circularity and Waste Management
  • Risk Management and Controls

MEDIUM PRIORITY MATERIAL TOPICS

  • Biodiversity and Ecosystems
  • Air Quality and Non-GHG Emissions
  • Innovation and Technology
  • Learning and Development
  • Sustainable and Inclusive Supply Chain
  • Labour Practices and Human Rights
  • Data Privacy and Cybersecurity
  • Indigenous People and Cultural Heritage
  • Diversity, Equal Opportunity and Inclusion

LOW PRIORITY MATERIAL TOPICS

  • Responsible Advocacy
  • Lifecycle Impact of Product and Processes
  • Decommissioning, Closure and Rehabilitation
  • Macroeconomic and Geopolitical Context

Transforming Responsibly for Securing India’s Energy Future