NaftoGaz India to undertake exploratory drilling at block AA-ONN-2004/4 in Assam located in District Tinsukia. The block is surrounded by tea estate gardens like powai and upper Dihing forest falls in north and Margherita, Lekhajan, Namdang and Ledo forest in South. It is proposed to drill 6 exploratory wells in the block. The average depth of the wells will be 2500-3000m below ground level and water based drilling fluid will be used. The drilling for each well would be 30- 40 days. The cost of Geophysical, Geological and Satellite Survey will be Rs. 24.00 crores and for exploratory drilling will be Rs. 84.00 crores.