Disclosure under Regulation 30 of SEBI (LODR) Regulations, 2015

यू�नट नं./ Unit No. K-400, 500, 600, टावर- के / Tower-K, Mahए aक e/ :N +a 9ur 1o -j 0i 1N 1a -g 2a 6r, न 81ई 0�द 1ल् 0ल � / New Delhi-110029 Government of India ई-मेल /E-mail: oilindia@oilindia.in Ref. No. OIL/SEC/32-33/NSE-BSE Dated: 21.10.2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, Department of Corporate Service Plot No. C/1, G Block, Phiroze Jeejeebhoy Towers Bandra Kurla Complex, Dalal Street Bandra (E), Mumbai - 400 051 Mumbai - 400 001 Symbol: OIL Security Code: 533106 Ref: Disclosure under Regulation 30 of the SEBI (LODR) Regulations, 2015 Sir / Madam, This is to inform that Board of Directors of the Company in its meeting held today i.e. 21st October, 2026, has designated Company’s Office Premise at Unit No. K - 400, 500 & 600, Tower-K, World Trade Centre, Nauroji Nagar, New Delhi-110029 as the Corporate Office of the Company in place of OIL House, Plot No.19, Sector-16A, Noida - 201301, Uttar Pradesh. The Board Meeting commenced at 02:30 P.M. and concluded at 06:00 P.M. The above is for your information & records please. Thanking you, Yours faithfully, For Oil India Limited A.K. Sahoo Company Secretary & Compliance Officer पंजीकृत कायार्लय द�ुलयाजान, �डब्रूगढ़, असम, /Regd. Office Duliajan, Pin - 786602, Dibrugarh, Assam, Tel.: +913742804510, +913742800427 Web: www.oil-india.com | CIN - L11101AS1959GOI001148