Coal Reserves

  43-101 PROPERTIES AS OF 12/31/2022
MNT (Moist, Recoverable Basis) PROVEN PROBABLE TOTAL PERMITTED NOT PERMITTED
Surface-mineable 1,271 - 1,271 1,271 -
Highwall-mineable 43 - 43 43 -
Auger-minable 200 - 200 200 -
Underground-mineable 32,934 9,789 42,723 18,419 24,304
Total 34,447 9,789 44,236 19,932 24,304
           
Casselman (UG) 2,326 310 2,636 2,636 -
North (UG) 3,356 1,186 4,543 2,817 1,726
Acosta (UG)     -   -
Upper Kittanning 7852 1,526 9,378 - 9,378
Middle Kittanning 3,752 986 4,738 4,738 1
Lower Kittanning 3,631 1,236 4,867 - 4,867
Total Acosta (UG) 15,235 3,749 18,984 4,738 14,246
Horning (UG) 1,594 236 1,829 1,829 -
A-Seam (UG) 5,589 810 6,400 6,400 -
Keyser (UG) 4,834 3,497 8,331 - 8,331
All Other 1,513 0 1,531 1,531 0
Grand Total 34,447 9,789 44,236 19,932 24,304

 

Coal Qualities

    WEIGHTED COMPOSITE (MOIST BASIS) AS OF 12/31/2022
RESERVE AREA SEAM RECOVERY ASH SULFUR BTU VM
SURFACE-MINEABLE
Rhoads Upper Kittanning 94.44% 0.0795 0.53% 12,400 0.1874
Rhoads Middle Kittanning 74.80% 0.1376 1.56% 12,200 15.39%
Rhoads Lower Kittanning 81.72% 0.1119 2.08% 12,700 15.88%
Schrock Run Lower Freeport 95.70% 0.0661 0.68% 13,300 16.64%
Schrock Run Upper Kittanning 90.90% 0.099 1.50% 12,900 17.21%
Shaffer Lower Freeport 95.60% 0.0718 0.77% 13,400 0.177
Hamer-Byers Upper Freeport 83.24% 0.1299 1.11% - 19.42%
Total   88.00% 10.30% 1.10% 12,800 17.30%
             
AUGER-MINEABLE
Rhoads Upper Kittanning 94.40% 7.95% 0.53% 12,400 18.74%
Rhoads Middle Kittanning 74.80% 13.76% 1.56% 12,200 15.39%
Rhoads Lower Kittanning 81.72% 11.19% 2.08% 12,700 15.88%
Hamer-Byers Upper Freeport 83.24% 12.99% 1.11% 0 19.42%
Total   82.09% 11.80% 1.45% 12,400 16.84%
             
HIGHWALL MINER
Schrock Run Upper Kittanning 90.90% 9.90% 1.50% 12,900 17.21%
Total   90.90% 9.90% 1.50% 12,864 17.21%
             
UNDERGROUND-MINEABLE
Casselman North Upper Freeport 80.18% 8.60% 1.10% 0 20.50%
Casselman South Upper Freeport 81.70% 7.60% 1.10% 14,600 20.50%
Acosta Upper Kittanning 78.60% 9.80% 1.80% 14,100 21.40%
Acosta Middle Kittanning 63.20% 12.30% 1.30% 13,700 16.80%
Acosta Lower Kittanning 65.30% 11.00% 2.00% 13,900 18.80%
Horning Lower Freeport 75.00% 0.098 1.30% 14,100 0.181
Keyser Lower Kittanning 74.10% 7.30% 1.50% 14,600 18.90%
A Seam Brookville 55.50% 11.20% 0.80% 13,700 18.90%
Total   70.00% 9.80% 1.40% 14,100 19.60%
Grand Total    70.50% 9.80% 1.40% 14,100 19.60%