Press Release

VOGL/Sec./SE/26-27/38 October 29, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers “Exchange Plaza” Plot No C/1, G Block Dalal Street, Fort Bandra Kurla Complex, Bandra (East) Mumbai - 400 001 Mumbai- 400051 Scrip Code: 544782 S crip Symbol: VOGL Sub: Press Release and Investor Presentation Dear Sir/Madam, Pursuant to Regulation 30 of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (the "Listing Regulations") and in continuation to our Letter No. VOGL/Sec./SE/26- 27/37 dated October 29, 2026, declaring the Unaudited Consolidated and Standalone Financial Results of Vedanta Oil and Gas Limited (the “Company”) for the second quarter and half year ended September 30, 2026 (“Financial Results”), please find enclosed herewith the following: 1. Press Release in respect of the Financial Results; and 2. Investor Presentation on the Financial Results. The Press Release and Investor Presentation shall also be made available on the website of the Company at https://www.vedantaoilandgas.com. We request you to please take the above on record. Thanking you, Yours faithfully, For Vedanta Oil and Gas Limited (Formerly known as Malco Energy Limited) Shivangi Dhanuka Company Secretary & Compliance Officer Encl.: As above PRESS RELEASE Financial results for the quarter ended 30 September 2026 Vedanta Oil and Gas reports solid EBITDA growth of 34% YoY; Focused production optimisation driving decline arrest; Robust pipeline of projects to unlock future growth Q2FY27 Highlights: • EBITDA at ₹1,393 Cr; Up 34% YoY • Revenue at ₹2,486 Cr; Up 7% YoY • Profit After Tax at ₹746 Cr • Three discoveries notified in Rajasthan • Focused production optimisation driving decline arrest, with positive reversal trend at Ravva Mumbai, 29 October 2026: Vedanta Oil and Gas Limited (BSE: 544782 | NSE: VOGL), India’s leading private oil and gas exploration and production company, announced its financial results for the second quarter ended 30 September 2026. The company delivered resilient financial performance in Q2FY27, with revenue increasing 7% YoY to ₹2,486 crore and EBITDA growth of 34% YoY to ₹1,393 crore, reflecting higher price realisations and a continued focus on cost optimisation. The company’s revenue for the first half of FY27 stood at Rs. 4,993 crore. Q2FY27 & H1FY27 Financial Performance: Item Q2FY27 H1FY27 Revenue 2,486 ↑7% YoY 4,993 ↑8% YoY EBITDA 1,393 ↑34% YoY 2,625 ↑14% YoY PAT from continuing operations 746 594 PAT incl. discontinued operations 746 1,691 (In ₹ Crores) Operating Performance Focused production optimisation initiatives, including well interventions and continuous artificial lift optimisation programmes maximised recovery from mature assets in Rajasthan and Ravva. The company reported average daily gross operated production of 72.2 kboepd in Q2FY27, with average daily working interest production of 47.8 kboepd during the quarter. The total gross oil and gas production was 6.6 million boe while the total working interest production was 4.4 million boe for the quarter. Pipeline of Growth Projects to Unlock Future Potential The Company is advancing its exploration and development programme to drive its next phase of growth. Upcoming Deepwater exploration on the East Coast, full-phase ASP injection in Rajasthan North, and exploration campaigns in the Northeast will unlock future growth potential. The exploration campaign delivered encouraging results, with three discoveries notified in the Rajasthan block during the first half of the year. These comprise deep-gas and shallow-oil discoveries in previously unexplored SSeennssiittiivviittyy:: PPuubblliicc ((CC44)) PRESS RELEASE reservoir intervals across the Kaameshwari, Saraswati and Raageshwari fields. The hydrocarbon potential and commercial viability of these discoveries remain under evaluation. Recently, Vedanta was awarded two offshore blocks in the Krishna Godavari Basin under the DSF IV bid round*, including KG/OSDSF/G1/2025 (Shallow Water) and KG/DWDSF/GD10/2025 (Deepwater). This compliments the company’s strategy to expand its offshore footprint in the future*, and unlock the country's untapped hydrocarbon potential using advanced technologies and efficient project execution. Jim Johnny Gast “Our Q2FY27 performance reflects disciplined execution and the strength of our Interim CEO and portfolio. Focused production optimisation initiatives are driving decline arrest across Whole Time Director our mature assets, while new discoveries reinforce the untapped potential of our acreage. Backed by a robust pipeline of exploration and development projects across Rajasthan, the Northeast and offshore blocks, we are focused on unlocking future growth, enhancing production and delivering sustainable, long-term value.” Arpit Mundra "Our profitability in Q2FY27 demonstrate the resilience of our financial foundation and Chief Financial Officer disciplined approach to capital management. Supported by higher price realisation and operational discipline, we delivered healthy cash generation while investing in strategic growth opportunities across our portfolio." *The DSF IV bid round was concluded prior to the demerger of Oil & Gas undertaking of Vedanta Limited. Pursuant to the demerger of the oil and gas business and the NCLT approved scheme, an application will be filed to the MoPNG and DGH for participating interest transfer of the DSF bid round IV blocks from Vedanta Limited to the demerged entity, Vedanta Oil and Gas Limited (formerly MALCO Energy Limited). The results presentation is available in the Investor Relations section of the company website on Investor Relations – Vedanta Oil and Gas. About Vedanta Oil & Gas Vedanta Oil & Gas (BSE: 544782 | NSE: VOGL) is India’s leading private-sector oil and gas exploration and production company, unlocking the nation’s hydrocarbon potential to strengthen energy security. Operating under the brand “Cairn”, the company holds interests in 45 blocks spanning over 47,000 sq. km of acreage across India, with gross 2P (proved plus probable) and 2C (contingent) resources of 1.3 bnboe. Its producing assets span key hydrocarbon basins in Rajasthan, Andhra Pradesh, Gujarat and Assam, supported by technology-led exploration, advanced subsurface expertise and world-class engineering capabilities. With a diverse portfolio of conventional and unconventional resources and a strong pipeline of upcoming growth projects, Vedanta Oil & Gas aims to significantly expand domestic production towards India’s energy security and economic growth. The company is committed to achieving Net Zero, advancing responsible energy development while creating sustainable value for the nation, communities and shareholders. For more information, visit: www.vedantaoilandgas.com. INVESTOR RELATIONS MEDIA investor.relations.desk@cairnindia.com Shivanjali Singh Chief Corporate Communications Officer shivanjali.singh@cairnindia.com Forward-looking statements This press release contains “forward-looking statements” — statements related to future, not past, events. Forward-looking statements often address expected future business and financial performance and contain words such as “expects”, “anticipates”, “intends”, “plans”, “believes”, “seeks”, “should” or “will”. Forward-looking statements by their nature address matters that are, to different degrees, uncertain. Uncertainties include the behaviour of financial and crude oil and gas markets, fluctuations in interest or exchange rates and crude and gas prices, future integration of acquired businesses, and other national, regional and global political, economic, business, competitive or regulatory matters. These uncertainties may cause actual future results to be materially different from those expressed in forward-looking statements. The company does not undertake to update its forward-looking statements. SSeennssiittiivviittyy:: PPuubblliicc ((CC44)) Investor Presenta [Showing first 8,000 characters — download PDF for full document]