File photo: Storage tanks of an oil refinery of Essar Oil, which runs India's second biggest private sector refinery, are pictured in Vadinar in the western state of Gujarat, India, October 4, 2016. REUTERS/Amit Dave/File photo Purchase Licensing RightsThe Indian government has raised the windfall tax on petroleum crude to 7,000 rupees ($83.78) per metric ton from 6,000 rupees per metric ton, effective from July 16, a notification issued on Monday showed.
