General Updates

OIL AND NATURAL GAS CORPORATION LIMITED COMPANY SECRETARIAT ONGC/CS/SE/2026-27 23.10.2026 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 – 400051 Mumbai – 400001 Symbol-ONGC; Series – EQ BSE Security Code Equity: 500312 NCD: 959881 Sub: Letter from Administrative Ministry regarding appointment of Chairman Madam/ Sir, Pursuant to Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, it is informed that Ministry of Petroleum and Natural Gas (MoP&NG), Government of India, vide Letter No. CA-31011/5/2023-CA-PNG (48404) dated 22.10.2026 has conveyed that the Appointments Committee of the Cabinet (ACC) has approved the appointment of Shri Sunil Kumar, Executive Director of the Company to the post of Chairman w.e.f. the date of his assumption of charge of the post on or after 07.12.2026, till the date of his superannuation i.e. 31.12.2028 and thereafter on contract basis, for a combined tenure of three (03) years, or until further orders, whichever is earlier. This is for your information and record. 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