O2 producers fire on all cylinders, many hit upper circuits SECTIONS Last Updated: Apr 26, 2021, 12:11 PM IST Share Synopsis Linde India, which is one of the largest producers of oxygen in India, climbed 4.76 per cent to Rs 1,957. In the last three months, the scrip has surged 113 per cent. Agencies National Oxygen was up 2 per cent, hitting the upper circuit. Bhagwati Oxygen and Gagan Gases also rose 5 per cent each, with lakhs of pending buy orders and no seller in sight. Related NEW DELHI: Shares of oxygen-producing companies fired on all cylinders on Monday, as they surged amid continued acute shortage of life-saving gas in hospitals across India.