The Assam government has signed a petroleum mining lease with Oil India Limited (OIL) for the exploration of petroleum products in eight blocks in return for an annual royalty of Rs 20 billion. The eight blocks are situated in Dibrugarh, Dibrugarh extension, Hugrijan extension, Borhapjan, Borhat, Moran, Dumduma extension and Mechaki extension. OIL also plans to ramp crude oil and natural gas production by enhancing its exploration and development programme.