Mahanadi Coalfields Limited
(A Miniratna Subsidiary Company of Coal India Limited)
Productivity
| Category | UG OMS | OC OMS | TOTAL OMS |
| 2008-09 | 1.25 | 23.05 | 16.59 |
| 2009-10 | 1.29 | 18.89 | 14.66 |
| 2010-11 | 1.25 | 20.50 | 15.37 |
| 2011-12 | 1.24 | 20.38 | 15.36 |
| 2012-13 | 0.97 | 21.34 | 16.07 |
| 2013-14 | 0.84 | 22.16 | 16.69 |
| 2014-15 | 0.77 | 22.11 | 17.10 |
| 2015-16 | 0.67 | 24.24 | 18.88 |
| 2016-17 | 0.65 | 25.72 | 20.08 |
| 2017-18 | 0.74 | 31.52 | 24.22 |
| 2018-19 | 0.82 | 28.75 | 23.83 |
| 2019-20 | 0.87 | 26.74 | 22.73 |
| 2020-21 | 0.60 | 32.30 | 27.15 |
| 2021-22 | 0.57 | 39.41 | 32.76 |
| 2022-23 | 0.59 | 41.20 | 35.65 |