Record Date

OIL AND NATURAL GAS CORPORATION LIMITED COMPANY SECRETARIAT ONGC/CS/SE/2026-27 06.08.2026 National Stock Exchange of India Ltd. BSE Limited Listing Department Corporate Relationship Department Exchange Plaza Phiroze Jeejeebhoy Towers Bandra-Kurla Complex, Bandra (E) Dalal Street, Fort Mumbai – 400 051 Mumbai – 400 001 Symbol-ONGC; Series – EQ BSE Security Code No.- 500312 NCD: 959881 Sub: Intimation of Record Date Madam/ Sir, This has reference to our letter dated 26.05.2026, informing that the Board of Directors, inter-alia, recommended final dividend of ₹1/- per share for FY’26, subject to the approval of members. In terms of Regulation 42 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, it is hereby informed that Friday, 4th September, 2026 has been fixed as 'Record Date' for determining eligibility of members for payment of Final dividend, subject to declaration by the members in the ensuing Annual General Meeting of the Company, if any. This is for your information and record, please. Thanking You, Yours Sincerely, For Oil and Natural Gas Corporation Ltd. (Shashi Bhushan Singh) Company Secretary & Compliance Officer Regd. Office: Plot No 5A-5B, Nelson Mandela Marg, Vasant Kunj, New Delhi-110070 Phone: 011-2675 4073, 011-2675 4085 EPABX: 2675 0111, 2629000 CIN: L74899DL1993GOI054155 Website: www.ongcindia.com Email: secretariat@ongc.co.in