Summary by County, 1999
| Total | Buchanan | Dickenson | Lee | Russell | Tazewell | Wise | |
| Total production (thousand short tons) | 32,294 | 10,656 | 4,168 | 1,000 | 394 | 2,070 | 14,005 |
| Surface | 9,732 | 1,594 | 1,490 | 219 | 220 | - | 6,208 |
| Underground | 22,502 | 9,062 | 2,678 | 781 | 174 | 2,070 | 7,798 |
| Total number of mines | 161 | 55 | 25 | 7 | 4 | 9 | 61 |
| Number of surface mines | 48 | 10 | 7 | 2 | 1 | - | 28 |
| Number of underground mines | 113 | 45 | 18 | 5 | 3 | 9 | 33 |