
Efforts are being made to explore coal new reserves in the country. During the last three years 2.72, 4.70 & 4,92 lakh meter of detailed exploratory drilling has been carried out converting 2.74 billion tonne, 2.70 billion tonne & 2.17 billion tonne resources respectively into ‘Proved category’. During XII plan 49.55 lakh meter drilling is envisaged to convert about 74.85 billion tonnes of resources into ‘Proved category’ by Central Mine Planning & Design Institute and its agencies.
As per the estimate and inventory prepared by Geological Survey of India, the State-wise details of the assessed coal resources during the last four years is as under:
Estimated resources as per Geological Survey of India
| Nov 2008 | Apr 2009 | Apr 2010 | Apr 2011 | |
| West Bengal | 28334.84 | 28326.79 | 29852.84 | 29954.92 |
| Bihar | 160.00 | 160.00 | 160.00 | 160.00 |
| Jharkhand | 75460.14 | 76711.96 | 76963.69 | 78935.98 |
| Madhya Pradesh | 20559.96 | 20981.01 | 21987.62 | 23125.73 |
| Chhattisgarh | 44134.04 | 44483.10 | 46682.01 | 49280.25 |
| Uttar Pradesh | 1061.80 | 1061.80 | 1061.80 | 1061.80 |
| Maharashtra | 9918.09 | 10154.74 | 10308.09 | 10533.41 |
| Orissa | 65263.34 | 65226.86 | 66307.25 | 69158.88 |
| Andhra Pradesh | 18696.59 | 18926.92 | 22016.24 | 22054.58 |
| Assam | 375.43 | 387.52 | 387.52 | 513.31 |
| Sikkim | 101.23 | 101.23 | 101.23 | 101.23 |
| Arunachal Pradesh | 90.23 | 90.23 | 90.23 | 90.23 |
| Meghalaya | 459.43 | 576.48 | 576.48 | 576.48 |
| Nagaland | 19.94 | 21.94 | 315.41 | 315.41 |
| Total | 264635.06 | 267210.58 | 276810.41 | 285862.21 |
(In million tonnes)










