The windfall tax on sales of locally produced crude oil has been lowered by the union government to $13,000 per tonne. The sale of Indian-produced crude oil has been subject to an extra levy of $17,750 per tonne for the past two weeks. The cess on the export of aviation turbine fuel (ATF) has also been reduced by the Center to $2 per litre. ATF shipments have not been subject to the cess for the last two weeks.