Analysts/Institutional Investor Meet/Con. Call Updates

Ref. No. OIL/SEC/32-33/NSE-BSE Dated: 10.08.2026 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 Sub: Conference Call for Q1-2026-27-Financial Results – Audio Recording Ref: Regulation 30 of the SEBI (LODR) Regulations, 2015 Sir/Madam, We write further to our letter of even no. dated 04.08.2026 regarding Conference Call [Con Call] for Financial Results of the Company for Q1 (FY 2026-27) and inform that the Audio Recording of the said Con Call [dated 10.08.2026] has been uploaded on our website as detailed hereunder: www.oil-india.com Investors Investor Services Analysts / Investors Meet Audio recordings of the Analysts' and Investors' Call on 10th August, 2026 Weblink: https://www.oil-india.com/files/2026-08/10046275.mp3 We confirm that no Unpublished Price Sensitive Information (UPSI) was shared/discussed during the call. List of Management Attendees: 1. Shri Saloma Yomdo, Director (E&D) 2. Shri Abhijit Majumder, Director (Finance) 3. Shri Trailukya Borgohain, Director (Operations) 4. Shri Bhaskar Jyoti Phukan, MD (NRL) 5. Shri Ajaya Kumar Sahoo, ED (CS) 6. Shri Abhijit Das, CGM (F&A) This is for your information & records please. Thanking you, Yours faithfully, For Oil India Limited A.K. Sahoo Company Secretary & Compliance Officer