Outcome of Board Meeting

VOGL/Sec./SE/26-27/37 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: Outcome of Board Meeting held on October 29, 2026– Integrated Filing (Financial Results) Dear Sir/ Madam, The Board of Directors of Vedanta Oil and Gas Limited (the “Company”) at its meeting held today, i.e. October 29, 2026, has, inter-alia, considered and approved the Unaudited Consolidated and Standalone Financial Results of the Company for the second quarter and half year ended September 30, 2026, in terms of Regulation 33 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended from time to time (“the Listing Regulations”). In this regard, please find enclosed herewith the following: 1. Unaudited Consolidated and Standalone Financial Results of the Company for the second quarter and half year ended September 30, 2026 (“Financial Results”); 2. Limited Review Report for Consolidated and Standalone Financial Results from the Statutory Auditors of the Company, M/s Walker Chandiok & Co LLP, Chartered Accountants. The report of the Statutory Auditors is with unmodified opinion with respect to the Financial Results. The aforesaid financial results shall also be made available on the website of the Company at: https://www.vedantaoilandgas.com. Further, pursuant to SEBI Master Circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, read with relevant circulars issued by stock exchanges in this regard, the following disclosures are being made: A. Financial Results – Enclosed B. Statement on deviation or variation for proceeds of public issue, rights issue, preferential issue, qualified institutions placement etc. – Not Applicable C. Disclosure of outstanding default on loans and debt securities – Not Applicable D. Disclosure of related party transactions (applicable only for half-yearly filings i.e., 2nd and 4th quarter) - will be filed along with XBRL for financial results. E. Statement on impact of audit qualifications (for audit report with modified opinion) submitted along-with annual audited financial results (standalone and consolidated separately) (applicable only for annual filing i.e., 4th quarter) – Not Applicable The meeting of the Board of Directors of the Company commenced at 3:07 p.m IST and concluded at 04:02p.m IST. 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 Walker Chandiok &_Co LLP Walker Chandiok & Co LLP 21st Floor, DLF Square Jacaranda Marg, DLF Phase II, Gurugram -122 002 Haryana, India T +91124 462 8099 F +91124 462 8001 Independent Auditor's Review Report on Consolidated Unaudited Quarterly Financial Results and Year to Date Results of the Company pursuant to the Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (as amended) To the Board of Directors of Vedanta Oil and Gas Limited (Formerly known as Mako Energy Limited) 1. We have reviewed the accompanying statement of unaudited consolidated financial results ('the Statement') of Vedanta Oil and Gas Limited ('the Holding Company') and its subsidiaries (the Holding Company and its subsidiaries together referred to as 'the Group'), (refer Annexure 1 for the list of subsidiaries, included in the Statement) for the quarter ended 30 September 2026 and the consolidated year to date results for the period 01 April 2026 to 30 September 2026, being submitted by the Holding Company pursuant to the requirements of Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (as amended) ('Listing Regulations'). 2. This Statement, which is the responsibility of the Holding Company's management and approved by the Holding Company's Board of Directors, has been prepared in accordance with the recognition and measurement principles laid down in Indian Accounting Standard 34, Interim Financial Reporting ('Ind AS 34'), prescribed under section 133 of the Companies Act, 2013 ('the Act'), and other accounting principles generally accepted in India and is in compliance with the presentation and disclosure requirements of Regulation 33 of the Listing Regulations. Our responsibility is to express a conclusion on the Statement based on our review. 3. We conducted our review of the Statement in accordance with the Standard on Review Engagements (SRE) 2410, Review of Interim Financial Information Performed by the Independent Auditor of the Entity, issued by the Institute of Chartered Accountants of India. A review of interim financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with the Standards on Auditing specified under section 143(10) of the Act, and consequently, does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion. We also performed procedures in accordance with the circular issued by the SEBI under Regulation 33 (8) of the Listing Regulations, to the extent applicable. 4. Based on our review conducted and procedures performed as stated in paragraph 3 above, nothing has come to our attention that causes us to believe that the accompanying Statement, prepared in accordance with the recognition and measurement principles laid down in Ind AS 34, prescribed under section 133 of the Act, and other accounting principles generally accepted in India, has not disclosed the information required to be disclosed in accordance with the requirements of Regulation 33 of the Listing Regulations, including the manner in which it is to be disclosed, or that it contains any material misstatement. 5. We draw attention to Note 6 to the accompanying Statement, which describes the uncertainty relating to the ongoing litigation in relation to extension of the Production Sharing Contract (PSC) for Camba OS/2) with Ministry of Petroleum & Natural Gas ('MoPNG') whereby the Holding Compan 's ....., - r,.. .. n 'ti Chartered Accountants Walker Chandiok & Co LLP is registered with limited liability with identification Offices in Bengaluru, Chandigarh, Chennai, Dehradun, Gurugram, Hyderabad, Kechi, Kolkata, Mumbai, New Delhi, Neida and Pune number AAC-2085 and has its registered office at L-41, Connaught Circus, Outer Circle, New Delhi, 110001, India Walker Chandiok &.Co LLP Independent Auditor's Review Report on Consolidated Unaudited Quarterly Financial Results and Year to Date Results of the Company pursuant to the Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (as amended) (Cont'd) against the rejection letter earlier issued by MoPNG has been dismissed by the Hon'ble Delhi High Court vide order dated 22 July 2026. The Holding Company has filed an appeal before the Divisional bench of Hon'ble High Court against the said order which is currently sub-judice. Consequently, the management of the Holding Company has recognised a provision for impairment oft 3 79 crore in the current period against the carrying value of non-financial assets and certain balances pertaining to Cambay Block and basis legal assessment, the management is of the view that no further adjustments are necessary in the accompanying consolidated financial results for the quarter and six months ended 30 September 2026. Our conclusion is not modified in respect of the above matter. 6. The Statement includes the interim financial information of one subsidiary, which has n [Showing first 8,000 characters — download PDF for full document]