| Reserves* | Tons (in thousands) | % | |||
|
| |||||
| Underground | 229,056 | 94% | |||
| Surface | 13,868 | 6% | |||
|
| |||||
| Total | 242,924 | ||||
| Low Sulfur Reserves | 0% | ||||
| Metallurgical Reserves | 0% | ||||
| Other Information | |||||
|
| |||||
| Typical BTU per pound | 11,531 | ||||
| # Leases | 7 | ||||
| # Lessees | 2 | ||||
|
| |||||
| Partial Lessee List | |||||
| • Cline Resources | |||||
| • Peabody Energy | |||||
| • Knight Hawk Coal | |||||
*As of December 31, 2010