ONGC Boosts Stake in OPaL to 95.69%, Invests ₹4,906.20 Cr in Petrochemical Expansion Dec. 3, 2024, 4:38 p.m. Oil and Natural Gas Corporation Limited (ONGC) has increased its stake in its subsidiary, ONGC Petro Additions Limited (OPaL), from 94.57% to 95.69%.The increase in shareholding was … Unlock the Full Filing And Lot More Access premium insights and stay ahead of the market with Dzambhala Pro. Learn More