Cairn Oil & Gas announces Gas discovery in Ambe First DSF block to be monetised on the West Coast – a key milestone in India’s offshore development

• The Ambe block (CB/OSDSF/AMBE/2021) is Cairn’s second Discovered Small Field (DSF) asset to be monetised, after Hazarigaon field in the Northeast
• 3 wells planned as part of shallow water drilling and development campaign

New Delhi, 28 January 2026: Cairn Oil & Gas, part of Vedanta Ltd., and India’s largest private oil and gas exploration and production company, has notified the DGH and Ministry of Petroleum and Natural Gas a hydrocarbon (Gas) discovery in its appraisal well Ambe-2A on the West Coast. The discovery has been made in reservoirs, below the main gas field, within the Miocene-Tarkeshwar formation.

Cairn is carrying out evaluations to assess the potential for the field development plan of the block.

Cairn plans to drill two additional wells in continuity for the ongoing drilling campaign. The field has the potential to enhance domestic gas production and advance the company’s contribution to India’s energy aatmanirbharta.

The company plans to develop its offshore blocks in the East and West coast, as part of its exploration and development campaign, in alignment with Hon’ble Prime Minister’s Samudra Manthan Mission to accelerate production from India’s offshore reserves.

The discovery marks a key milestone for Cairn in its commitment to contribute to India’s journey towards energy security. The Discovered Small Field (DSF) assets can boost company’s production and fast-track the development and monetisation of the shallow-water offshore field.

Cairn recently installed India’s first-ever Sub-Sea Template (SST) as part of CSP (Conductor Supported Platform) installation, marking a major leap for marginal field monetisation in DSF blocks. The pre-engineered steel foundation was placed on the seabed to ensure proper positioning and alignment for cluster drilling, provide structural support for equipment, and protect wellheads.

The Ambe block, spread across 728.19 sq. km, was awarded to Cairn under the DSF-III bidding round in September 2022. The first hydrocarbon discovery in the block was made during Cairn’s previous tenure in the area. The company holds 100% participating interest in the block.

About Cairn Oil & Gas

Cairn Oil & Gas, part of Vedanta Limited, is India’s largest private oil and gas exploration and production company. With a world-class resource base, Cairn has an interest in 44 blocks in India spread over 47,000 square kilometres with gross 2P (Gross Proved Plus Probable Reserves) and 2C (Gross Contingent Reserves) of 1.4 bnboe. Cairn has producing assets across Rajasthan, Andhra Pradesh, Gujarat, and Assam, and has spearheaded several technological innovations with high-reward prospects, over the last three decades years of its operations. The company has a vision to contribute 50% of India’s domestic production, executing one of the largest exploration projects in the country across its diversified portfolio comprising conventional and unconventional projects such as Tight Oil & Gas, Deep & Shallow Water, ASP Injection, Deep Gas and Satellite Field Monetisation.

Cairn is committed to achieving Net Zero by 2030 by prioritising environmental resilience and is driving transformative social impact at scale. It became the first Indian company to attain ‘Gold Standard Pathway’ recognition by United Nations’ Environment Programme – OGMP 2.0.

For more information, please visit www.cairnindia.com

About Vedanta Limited

Vedanta Limited (“Vedanta”), a subsidiary of Vedanta Resources Limited, is one of the world’s leading natural resources, critical minerals, energy and technology companies spanning across India, South Africa, Namibia, Liberia, UAE, Saudi Arabia, Korea, Taiwan and Japan with significant operations in Oil & Gas, Zinc, Lead, Silver, Copper, Iron Ore, Steel, Nickel, Aluminium, Power & Glass Substrate and foraying into electronics and display glass manufacturing. For two decades, Vedanta has been contributing significantly to nation building. Governance and sustainable development are at the core of Vedanta’s strategy, with a strong focus on health, safety, and environment. Vedanta has put in place a comprehensive framework to be the ESG leader in the natural resources sector, is committed to reducing carbon emissions to net zero by 2050 or sooner and aims to spend $5 billion over the next 10 years to accelerate this transition. Giving back is in the DNA of Vedanta, which is focused on enhancing the lives of local communities. Anil Agarwal Foundation, the umbrella entity for Vedanta’s social initiatives, aims to spend Rs 5000 crore over the next five years on various social impact programs and its flagship project, Nand Ghar is setting up model anganwadis across India. Vedanta Ltd. ranked among top 5 in the S&P Global Corporate Sustainability Assessment 2024, and has been listed in the Dow Jones Sustainability World Index. The company has also been certified as a Great Place to Work and Kincentric Best Employer 2023. Vedanta Limited is listed on the Bombay Stock Exchange and the National Stock Exchange.

For more information, please visit www.cairnindia.com / www.vedantalimited.com

For any media queries, please contact: 

Ms. Shivanjali Singh

Chief Corporate Communication Officer

Cairn Oil & Gas, Vedanta Ltd

Shivanjali.Singh@cairnindia.com

Mr. Anshuman Bordoloi

Senior Account Manager, Kaizzen PR

Anshuman.Bordoloi@kaizzencomm.com