Coal Reserves
| 43-101 PROPERTIES AS OF 12/31/2023 | |||||
| MNT (Moist, Recoverable Basis) | PROVEN | PROBABLE | TOTAL | PERMITTED | NOT PERMITTED |
|---|---|---|---|---|---|
| Surface-mineable | 1,811 | - | 1,811 | 1,296 | 515 |
| Auger-minable | 18 | - | 18 | 18 | - |
| Highwall-mineable | 203 | - | 203 | 203 | - |
| Underground-mineable | 27,467 | 8,385 | 35,852 | 16,710 | 19,142 |
| Total | 29,499 | 8,385 | 37,885 | 18,227 | 19,657 |
| Casselman (UG) | 4,721 | 1,430 | 6,151 | 4,434 | 1,717 |
| Acosta (UG) | - | - | |||
| Upper Kittanning | 7,609 | 1,494 | 9,103 | - | 9,103 |
| Middle Kittanning | 3,267 | 956 | 4,223 | 4,223 | - |
| Total Acosta (UG) | 10,876 | 2,449 | 13,326 | 4,223 | 9,103 |
| Horning (UG) | 1,350 | 212 | 1,562 | 1,562 | - |
| A-Seam (UG) | 5,695 | 797 | 6,491 | 6,491 | - |
| Keyser (UG) | 4,825 | 3,497 | 8,322 | - | 8,322 |
| All Other | 2,032 | - | 2,032 | 1,517 | 515 |
| Grand Total | 29,499 | 8,385 | 37,885 | 18,227 | 19,657 |
Coal Qualities
| WEIGHTED COMPOSITE (MOIST BASIS) AS OF 12/31/2023 | ||||||
| RESERVE AREA | SEAM | RECOVERY | ASH | SULFUR | BTU | VM |
| SURFACE-MINEABLE | ||||||
| Rhoads | Upper Kittanning | 92.8% | 7.3% | 0.5% | 12,400 | 18.5% |
| Rhoads | Middle Kittanning | 64.3% | 10.2% | 1.1% | 12,700 | 15.6% |
| Rhoads | Lower Kittanning | 75.2% | 8.7% | 1.6% | 13,000 | 15.9% |
| Schrock Run | Lower Freeport | 94.4% | 6.0% | 0.7% | 13,300 | 16.5% |
| Schrock Run | Upper Kittanning | 87.9% | 8.7% | 1.2% | 12,900 | 17.2% |
| Shaffer | Lower Freeport | 94.2% | 6.4% | 0.7% | 13,400 | 17.7% |
| Hamer-Byers | Upper Freeport | 75.8% | 8.7% | 0.9% | - | 19.9% |
| Hart | Upper Kittanning | 65.4% | 10.3% | 0.9% | 13,100 | - |
| Will Farm | Lower Kittanning | 73.5% | 8.0% | 1.0% | 13,100 | - |
| Total | 78.6% | 8.2% | 0.9% | 13,100 | 17.2% | |
| AUGER-MINEABLE | ||||||
| Rhoads | Upper Kittanning | 92.8% | 7.3% | 0.5% | 12,400 | 18.5% |
| Rhoads | Middle Kittanning | 64.3% | 10.2% | 1.1% | 12,700 | 15.6% |
| Rhoads | Lower Kittanning | 75.2% | 8.7% | 1.6% | 13,000 | 15.9% |
| Hamer-Byers | Upper Freeport | 75.8% | 8.7% | 0.9% | - | 19.9% |
| Total | 76.0% | 8.8% | 1.2% | 12,800 | 16.7% | |
| HIGHWALL MINER | ||||||
| Schrock Run | Upper Kittanning | 87.9% | 8.7% | 1.2% | 12,900 | 17.2% |
| Total | 87.9% | 8.7% | 1.2% | 12,900 | 17.2% | |
| UNDERGROUND-MINEABLE | ||||||
| Casselman | Upper Freeport | 79.9% | 7.8% | 1.1% | - | 20.8% |
| Acosta | Upper Kittanning | 81.0% | 10.1% | 1.8% | 14,600 | 22.1% |
| Acosta | Middle Kittanning | 71.5% | 13.9% | 1.4% | 15,500 | 19.0% |
| Horning | Lower Freeport | 75.0% | 9.8% | 1.3% | 14,100 | 18.1% |
| Keyser | Lower Kittanning | 74.1% | 7.3% | 1.5% | 14,600 | 20.5% |
| A Seam | Brookville | 55.5% | 11.2% | 0.80% | 13,700 | 18.9% |
| Total | 72.0% | 9.9% | 1.3% | 14,500 | 20.3% | |
| Grand Total | 72.3% | 9.8% | 1.3% | 14,400 | 20.2% | |