Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Processing |
- Wash plant
- Dense medium separation
|
Source:
p. 32
Hallador Energy Company indirectly owns Ace in the Hole mine through it's wholly owned subsidiary Sunrise Coal, LLC.
Summary:
The Ace mine is a multi-seam open pit strip mine.
Processing Technologies
- Wash plant
- Dense medium separation
Summary:
The low-sulfur coal from Ace is trucked to Oaktown for blending with its high-sulfur coal.The Oaktown delivery system includes two heavy media wash plants on-site, with a capacity for 1600 tph and a 110-car double-rail loop.
Production:
| Commodity | Units | 2017 | 2016 | 2015 |
|
Coal (thermal)
|
M tons
| ......  | ...... | 0.4 |
| Heat Content | BTU/lb | 10,900 | 11,200 | 11,200 |
| Sulfur | % | 2 | 1.9 | 1.9 |
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Operational Metrics:
| Metrics | 2017 | 2016 | 2015 |
|
Raw coal annual capacity
| ...... | 0.4 M tons | 0.5 M tons |
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Reserves at December 31, 2017:
| Category | Tonnage | Commodity |
|
Proven
|
0.9 M tons
|
Coal (thermal)
|