Overview
| Stage | Reclamation |
| Mine Type | Underground |
| Commodities |
|
| Mining Method |
- Continuous
- Room-and-pillar
|
| Processing |
|
The Sebree mining complex ceased production in November 2015. The complex is in the reclamation stage. |
Source:
p. 22
The Onton mine was operated by Alliance Resource subsidiary, Sebree Mining, LLC ("Sebree").
Contractors
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Mining Methods
- Continuous
- Room-and-pillar
Summary:
Sebree Mining utilizes continuous mining units employing room-and-pillar mining techniques to produce high-sulfur coal.
Mining Access: Slope & Shaft.
Source:
Summary:
The Onton mine's preparation plant, which is leased from a third party, has throughput capacity of 750 tons of raw coal per hour.
Production:
| Commodity | Units | 2015 | 2014 | 2013 |
|
Coal (thermal)
|
M tons
| 1.8 | 2.4 | 2.4 |
All production numbers are expressed as clean coal.
Reserves at December 31, 2021:
| Category | Tonnage | Commodity |
|
Measured & Indicated
|
38.9 M tons
|
Coal (thermal)
|
|
Inferred
|
4.6 M tons
|
Coal (thermal)
|
|
Total Resource
|
43.5 M tons
|
Coal (thermal)
|
Corporate Filings & Presentations:
| Document | Year |
|
...................................
|
2021
|
|
...................................
|
2019
|
|
...................................
|
2019
|
|
Form 10-K
|
2018
|
|
Other
|
2018
|
|
Form 10-K
|
2017
|
|
Form 10-K
|
2015
|
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Aerial view:
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