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Operational Review

OIL AND GAS

During FY 2024-25, Oil & Gas business delivered gross operated production of 103 kboepd, down by 19% Y-o-Y, primarily driven by natural reservoir decline at the MBA fields. The decline was partially offset by addition of volumes through new infill wells brought online and well intervention activities in Mangala, Aishwariya, Tight Oil (ABH) and Raageshwari Deep Gas fields. OALP assets were supported by ramp up of volumes from Jaya discovery.

OPERATIONS

Average gross operated production across our assets was 19% lower Y-o-Y at 1,03,237 boepd. The company’s production from the Rajasthan block was 84,276 boepd, 21% lower Y-o-Y and from the offshore assets, was at 15,156 boepd, 23% lower Y-o-Y. The natural decline has been partially offset by infill wells brought online across fields in Rajasthan, well intervention activities across assets and ramp up volume from Jaya discovery.

Block-wise production details
Rajasthan block

Gross production from the Rajasthan block averaged 84,276 boepd, 21% lower Y-o-Y. The natural decline in the MBA fields has been partially offset by infill wells drilling campaigns and well intervention activities in Mangala, Aishwariya, ABH and RDG fields.

Gas production from Raageshwari Deep Gas (RDG) averaged 114 million standard cubic feet per day (mmscfd) in FY 2024-25, with gas sales, post captive consumption, at 100 mmscfd.

The appeal against the Division Bench order (additional 10% profit sharing from 2020 onwards) was filed by us before the Supreme Court in June 2021. The matter was listed on 27 March 2025. However, the matter could not be heard due to paucity of time. We await the next date of hearing.

The Government of India (GoI), acting through the Directorate General of Hydrocarbons (DGH), had raised demand up to 14 May 2020 for Government’s additional share of Profit oil based on its computation of disallowance of cost incurred over retrospective re-allocation of certain common costs between Development Areas (DAs) of Rajasthan Block and certain other matters aggregating to US$ 1,162 million applicable interest thereon representing share of Vedanta Limited and its subsidiary.

The Group had disputed the aforesaid demand and invoked arbitration as per the provisions of the Production Sharing Contract. The Group had received the Final Partial Award dated 22 August 2023 from the Arbitration Tribunal ('the Tribunal') as amended by orders dated 15 November 2023 and 08 December 2023 ("the Award"), dismissing the Government’s contention of the additional Profit Petroleum in relation to allocation of common development costs across Development Areas and certain other matters in accordance with terms of the Production Sharing Contract for Rajasthan Block, while allowing some aspects of the objections. Further, the Tribunal had decided that the Group was allowed to claim cost recovery of exploration cost as per terms of the Production Sharing Contract.

Pursuant to the award, the Group had recognised a benefit of ₹ 4,761 crore in Revenue from operations in financial year ended 31 March 2024. The Group has been adjusting the profit petroleum liability against the aforesaid benefit.

GoI had filed interim relief application on 03 February 2024 stating that the Group has unilaterally enforced the award although the quantification of the same is pending. The matter was heard on 26 March 2024 and the Tribunal vide its order dated 29 April 2024 has denied GoI's interim relief application in favour of the Group. GoI has filed an appeal before the Delhi High Court (“Section 37 Appeal”). Hearing has been concluded in the matter and parties have filed written submission on 16 April 2025. Judgement on the matter is reserved. In the interim, vide letter dated 06 May 2024, GoI has submitted its calculation of the quantum, basis the Award. GoI has claimed a sum of US$ 224 million from the Group. The Group is of the view that the GoI computation is prima-facie contrary to the Award including clarifications issued by the Tribunal. The Tribunal has allowed these costs for cost recovery, but this was not considered by GoI in their calculation of the quantum. The Group has responded to the GoI with its detailed analysis and is awaiting a response.

GoI had also filed a challenge against the Award on 07 March 2024 in Delhi High Court. Notice has been issued on 01 August 2024 in Section 34 and granted liberty to the Group to file its response. Further, no stay has been granted to GoI against the adjustment of liability by the Group. We await the next date of hearing. The Group believes that the Court may not re-appreciate the evidence in Section 34 appeal as the interpretation by the Tribunal is plausible.

Ravva block

The Ravva block produced at an average rate of 10,104 boepd, lower by 7% Y-o-Y, owing to natural field decline.

Cambay block

The Cambay block produced at an average rate of 5,052 boepd, lower by 43% Y-o-Y, owing to natural field decline.

Prices

Crude oil prices averaged US$ 78.9 per barrel in FY 2024-25, a decrease from US$ 83.1 per barrel in FY 2023-24. This decline was mainly driven by geopolitical risks, slowing economic growth in developed economies, potential tariffs by the United States, and rising inventory stocks.

Early in the year, prices increased due to escalating Middle East tensions and OPEC's supply cuts. However, as geopolitical risks eased and global monetary policy uncertainties grew, prices shifted downward, largely due to concerns over slowing economic growth in major economies like the U.S., China, and Europe.

Later in the year, prices briefly spiked due to rising tensions between Israel and Iran, raising fears of disruptions to Iranian oil exports. However, weaker demand, especially from China, a build-up in U.S. petroleum product inventories, a stronger U.S. dollar, and potential tariffs on imports from Canada, Mexico, and China exerted downward pressure.

Crude oil prices were influenced by ongoing geopolitical tensions, economic uncertainties, and potential U.S. sanctions, while supply-side risks and seasonal factors caused occasional price fluctuations. In April, crude prices dropped following announcements of new U.S. tariffs and retaliatory measures from major economies, triggering heavy selling in oil futures and broader financial markets.

Growth Projects Development

The Oil & Gas business has a strong portfolio of infill development and enhanced oil recovery projects to boost near-term volumes and manage natural field decline. Key projects include:

Infill Projects
  • Mangala Infills (18 wells): Based on the success of previous infill campaigns, the project targets 18 wells (15 producers and 3 injectors) in FM1 sands, with 6 wells converted. As of 31 March 2025, 17 wells have been drilled and are online.
  • Mangala ASP (Cluster C): The Alkaline Surfactant Polymer (ASP) project at Mangala aims for incremental recovery. It involves drilling wells and developing infrastructure at Mangala Cluster C, with ASP injection planned in FM1 and FM3 layers by the first half FY 2025‑26. Surface facilities construction is ongoing.
  • Aishwarya Upper Fatehgarh (25 wells): Following the success of polymer injection in Lower Fatehgarh sands, production opportunities were identified in Upper Fatehgarh sands. The project involves drilling 25 wells and converting 7 existing wells to polymer injectors. As of March 2025, drilling is complete, and 24 wells are online.
  • Aishwarya Lower Fatehgarh (17 wells): To enhance recovery from Lower Fatehgarh sands, 17 additional wells (9 producers and 8 injectors) and 5 conversions are planned. As of March 2025, 9 wells have been drilled, with 3 online.
  • Tight Oil (ABH): The Aishwariya Barmer Hill infill drilling program has established confidence in the ABH reservoir. Based on success, 14 additional wells are being drilled, with 12 drilled and 9 online as of March 2025.
  • Tight Gas (RDG): To manage natural decline, a campaign of 8 additional infill wells was completed during FY 2023-24. All wells are now online.
  • Satellite Fields (Saraswati): To enhance recovery from Saraswati field, a drilling campaign of 5 infill wells is underway. As of March 2025, 2 wells have been drilled, with 1 online.
Exploration and Appraisal
  • Under the Open Acreage Licensing Policy (OALP), revenue-sharing contracts have been signed for 58 blocks located primarily in established basins, including some optimally close to existing infrastructure, of which 5 onshore blocks in the KG region have been relinquished
  • During fiscal year 2025, we drilled six exploration wells [4 wells in North-East and 2 wells in Rajasthan]. We have successfully announced first oil discovery from North-East region, Rudra-1 (~6 mmboe of Contingent Resources added) and monetisation is under planning
  • We intend to drill 6-8 exploration prospects during fiscal year 2026. International Rig has been locked in for drilling onshore exploration wells in 2Q FY 2025-26. Controlled Source Electro Magnetic (CSEM) survey for Exploration campaign in KG Deepwater block is under progress and we intend to drill exploration wells to explore the prospects in the blocks for next fiscal year.
FINANCIAL PERFORMANCE

Revenue for FY 2024-25 was ₹ 11,044 crore, a 38% decrease Y-o-Y (after profit petroleum and royalty sharing with the Government of India), primarily due to lower volumes and prices. The previous year included a favourable impact from an order received in the GoI arbitration. EBITDA for FY 2024-25 was ₹ 4,664 crore, down 52% Y-o-Y, reflecting the lower revenue.

The Rajasthan operating cost was US$ 16.6 per barrel in FY 2024-25, up from US$ 14.5 per barrel in FY 2023-24, mainly due to reduced production.

ESG UPDATE
Environment

Our Oil & Gas business is committed to protecting the environment, minimise resource consumption and drive towards our goal of ‘zero harm, zero waste, zero discharge’. Highlights for FY 2024-25 are as under:

  • Cairn NET Water Positive Impact (NPWI) index at 1.15
  • Produced water re-injection at Raag Oil resulting in savings of 1,15,500 kl of ground water
  • Sewage Treatment Plant (STP) commissioned at RDG resulting in savings of 3,600 kl water by utilising treated water for greenbelt development
Biodiversity and wildlife conservation efforts
  • Revival of Khejri in Thar ecosystem by distribution & plantation of 5,000 saplings in Govt schools of Barmer
  • Cairn has launched Mission Vanraksha in Assam, with Kaziranga National Park & Tiger Reserve, Assam to conserve endangered species (One-Horned Rhinoceros and Bengal Tigers)
  • Released Coffee Table Book - 'Nesting Dunes - Wings of the Thar', to cherish the captivating Avifaunal biodiversity of Thar Desert on World Environment Day 2024
  • TACO has partnered with Jambeshwar Environment and Wildlife Society to conserve wildlife in Sanchore district, Barmer by providing drinking water facilities and medical care
Reduction in GHG Emissions
  • Conversion of steam driven power fluid pump to electric motor at Mangala Processing Terminal (MPT); avoidance of GHG emission 82,550 tCO2e/annum
  • Installation of 500 KVA Gas Engine Generator at Tukaram to meet the power requirement and reducing gas flaring. Annual GHG reduction potential of 1,100 tCO2e
  • Completed plantation of approx. 0.76 million trees or mangroves in Rajasthan, Surat and Ravva
  • Fugitive Emission monitoring studies conducted across assets to identify and quantify and thereby reduce emissions
  • Completed an engineering study to utilize CO2-rich gas for power generation and enhanced oil recovery
Occupational Health and Safety

There was one fatality and one lost time injury (LTI) in FY 2024-25. Loss time injury frequency rate stood at 0.03 per million-man hours (FY 2023-24: 0.1 per million‑man hours).

Cairn Oil & Gas has taken various initiatives:

  • Critical Risk Management Capacity Building workshop by DSS+
  • Digital initiatives: Artificial Intelligence based safety surveillance, Digital Mines statutory register, QR Code based incident reporting and Electronic work-permit system in Suvali
  • External training on Oil Spill Response and Management at Ravva asset
  • State-level mock drill conducted at RJ North for ‘Fire in crude storage tank’ in coordination with District Administration as per National Disaster Management Authority
Recognitions received

Our focus remains on strengthening our safety philosophy and management systems. We were recognised with awards conferred by external bodies:

  • Cairn becomes the 1st Indian company to join OGMP 2.0 (Oil & Gas Methane Partnership) program by signing MoU with UNEP for Methane mitigation
  • Cairn received “RoSPA (The Royal Society for the Prevention of Accidents) Gold Award 2024 in Occupational Health and Safety Category
  • ‘Golden Peacock - Eco Innovation Award 2024’ for Best Practices in Waste Management
  • Cairn has been recognised under various categories for Safety Excellence & Emergency preparedness at 38th DGMS Annual Safety Meet at Jodhpur
Strategic Priorities and Outlook
Vedanta’s Oil & Gas business is anchored in a robust portfolio comprising exploration prospects across Indian basins, development opportunities in high‑potential producing blocks, and stable operations that continue to generate strong cash flows.
The key priority ahead is to deliver our commitments from our world-class resources with ‘zero harm, zero waste and zero discharge:
Strategic focus areas
  • Infill projects across producing fields to add volume in near term
  • Define new development projects to bring these Resources into production
  • Unlock the potential of the exploration portfolio comprising of OALP and PSC blocks
  • Continue to operate at a low cost-base and generate free cash flow post-capex