HINDOILEXP Hindustan Oil Exploration Company Ltd Investments/Divestments Announcement 2024 - Approval for Relinquishment Hindustan Oil Exploration Co. Ltd. received approval to relinquish Block AA/ONDSF/KHEREM/2016 without payment of cost or damages..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Hindustan Oil Exploration Company Ltd