Updates

VOGL/SEC./SE/2026-27/29 October 03, 2026 To To BSE Limited, National Stock Exchange of India Limited, Phiroze Jeejeebhoy Towers Exchange Plaza, C-1, Block – G, Dalal Street, Fort Bandra Kurla Complex, Bandra (E), Mumbai - 400 001 Mumbai – 400 051 BSE Scrip Code: 544782 NSE Scrip Code: VOGL Subject: Production Release Dear Sir/Ma’am, Pursuant to Regulation 30 of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended from time to time, please find enclosed herewith the Production Release of the Company for the second quarter ended September 30, 2026. Request you to kindly take the above on record. Yours sincerely, For Vedanta Oil and Gas Limited (Formerly known as Malco Energy Limited) Shivangi Dhanuka Company Secretary & Compliance Officer Membership No.: A 70586 Enclosed: As above Vedanta Oil and Gas Limited Production Release for the Second Quarter ended September 30, 2026 Mumbai, October 3, 2026: Vedanta Oil and Gas Limited today announced its production numbers for the Second Quarter ended September 30, 2026. “Arresting Base decline and building future growth funnel” Vedanta Oil & Gas continues to advance through production optimization initiatives and enhanced oil recovery projects from mature fields for arresting decline and pursuing growth through a mix of near-to-medium term opportunities to increase production and reserves. 2Q 1Q 1H Particulars (In ‘000 boepd, or as stated) FY27 FY26 FY27 FY27 FY26 change change change Average Daily Gross 72.2 89.1 (19%) 77.7 (7%) 74.9 91.2 (18%) Operated Production Rajasthan 59.9 70.9 (15%) 63.1 (5%) 61.5 72.7 (15%) Ravva 8.1 8.2 (1%) 7.0 16% 7.6 8.3 (9%) Cambay 1.11 6.5 (83%) 4.6 (76%) 2.8 6.6 (57%) OALP 3.1 3.6 (15%) 3.1 (0%) 3.1 3.5 (13%) Average Daily Working 47.8 58.2 (18%) 51.1 (7%) 49.4 59.5 (17%) Interest Production Rajasthan 42.0 49.6 (15%) 44.2 (5%) 43.1 50.9 (15%) Ravva 1.8 1.8 (1%) 1.6 16% 1.7 1.9 (9%) Cambay 0.41 2.6 (83%) 1.8 (76%) 1.1 2.6 (57%) KG-ONN 2003/1 0.5 0.6 (14%) 0.5 (7%) 0.5 0.5 (7%) OALP 3.1 3.6 (15%) 3.1 (0%) 3.1 3.5 (13%) Total Oil and Gas (million boe) Oil and Gas - Gross 6.6 8.2 (19%) 7.1 (6%) 13.7 16.7 (18%) Oil and Gas – Working 4.4 5.4 (18%) 4.7 (6%) 9.0 10.9 (17%) Interest kboepd: thousands of barrels of oil equivalent per day • Average gross operated production in 2Q FY27 stands at 72.2 kboepd, down 7% QoQ. It was supported by successful implementation of production optimisation initiatives at Ravva offset by natural decline at Rajasthan ----------------------------------------------- 1 On 19th September 2025, MoPNG informed the contractors of the block (a three-party Joint Venture, including Vedanta as Operator) that their application for PSC extension hadn’t been accepted. Vedanta had challenged the said rejection before Delhi High Court by way of a writ, which was dismissed on 22nd July 2026. Vedanta has filed a challenge to the dismissal before the Division Bench of Delhi High Court, and the matter is presently sub-judice. In the interim, pursuant to the directions of MoPNG vide its letter dated 19th September 2025, ONGC has taken over the complete operations of the Block from 24th July 2026. Cambay block average production per day has been factored only till 21st July 2026. About Vedanta Oil and Gas Limited Vedanta Oil and Gas Limited (formerly Malco Energy Limited) (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 44 blocks spanning over 47,000 sqkm 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 Vedanta Oil and Gas Limited Registered Office: 1st Floor, ‘C’ wing, Unit 103, Corporate Avenue, Atul Projects, Chakala, Andheri (East), Mumbai – 400 093 CIN: L06100MH2001PLC428719 Disclaimer Vedanta Oil and Gas Limited ("VOGL") (formerly known as Malco Energy Limited) became effective on May 1, 2026, while the operational performance is presented for the full quarter of the business constituents of VOGL as they exist at the end of first quarter of FY2027 for meaningful like-for-like comparison with historical performance. This press release contains “forward looking statements” – that is, statements related to future, not past, events. In this context, forward looking statements often address our expected future business and financial performance, and often 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. For us, uncertainties arise from the behaviour of financial and crude oil and gas markets including fluctuations in interest and or exchange rates and crude and gas prices; from future integration of acquired businesses; and from numerous other matters of national, regional, and global scale, including those of a political, economic, business, competitive or regulatory nature. These uncertainties may cause our actual future results to be materially different that those expressed in our forward-looking statements. We do not undertake to update our forward-looking statements. For any Investor enquiries, please contact: Mr. Charanjit Singh, Group Head – Investor Relations (vedantaltd.ir@vedanta.co.in) For any media queries, please contact: Ms. Shivanjali Singh, Chief Corporate Communications Officer (shivanjali.singh@cairnindia.com)