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United States
Oaktown II Mine (Oaktown Complex)

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 Location:
2 km SE from Oaktown, Indiana, United States

  Regional Office:
1183 East Canvasback Dr.
Terre Haute
Indiana, United States
47802
Phone  ...  Subscription required
Fax812-299-2810
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (thermal)
Mining Method
  • Continuous
  • Room-and-pillar
Processing
  • Wash plant
  • Dense media separation


Owners & OPERATOR

Source: p. 1
CompanyInterestOwnership
Sunrise Coal LLC. (operator) 100 % Direct
Hallador Energy Company 100 % Indirect
Sunrise Coal, LLC, a wholly owned subsidiary of Hallador Energy Company (NASDAQ: HNRG), is Indiana’s 2nd largest coal producer. The company is focused on developing coal reserves in the Illinois Basin. Current assets include:

The complex of high-quality bituminous, low- chlorine coal located along the Indiana- Illinois boarder:
- Carlisle Mine, Oaktown 1 and Oaktown 2.
- Bulldog Reserve, Vermilion County, Illinois.
- Ace in the Hole Mine.

Deposit Type

  • Sedimentary


Summary:

The two Oaktown mines are separated by a sandstone channel. The coal seam thickness ranges from 4 feet to over 9 feet.


Mining Methods

  • Continuous
  • Room-and-pillar


Summary:

Underground mines are room and pillar mines meaning that main airways and transportation entries are developed and maintained while remote-controlled continuous miners extract coal from so-called rooms by removing coal from the seam, leaving pillars to support the roof. Shuttle cars or similar transportation are used to transport coal to a conveyor belt for transport to the surface.

Room and pillar mining is a non-subsidence plan for a mine, preserving the precious farmland above. It is among the safest and one of the most ecologically-friendly approaches to mining coal today, creating a non-subsidence environment (no movement of land) and maintaining clean water standards.

As the name indicates, large pillars of coal (40 feet wide) are left standing to help support the roof of the mine—more than half of the coal remains intact as supporting pillars to maintain the integrity of the surface land. The end result is a grid of open space (rooms) cleared by a continuous miner machine and separated by pillars. Once the coal is cleared and placed on a conveyor belt to our state-of the art surface wash plant, roof bolters enter the new area to secure the roof, inserting fully grouted 6-foot metal rods every four feet. At the wash plant, rock and debris are separated from the coal so that it can be cleansed of sulfur and other minerals in preparation for our customers.

Access to the Oaktown 2 mine is via an 80 foot deep box cut and a 2,600 foot slope on a 14 percent grade, reaching coal in excess of 400 feet below the surface.


Crushing and Grinding


Processing

  • Wash plant
  • Dense media separation

Source: Subscription required

Summary:

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.

Recoveries & Grades:

CommodityParameter20192018201720162015
Coal (thermal) Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityUnits20192018201720162015
Coal (thermal) M tons  ......  Subscription required  ......  Subscription required2.51.92.2
Heat ContentBTU/lb11,60011,60011,60011,50011,530
Sulfur%5.75.65.74.84.8
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20192018201720162015
Raw coal annual capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required4 M tons4 M tons
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryTonnage Commodity
Proven 31.1 M tons Coal (thermal)
Probable 7.9 M tons Coal (thermal)
Proven & Probable 39 M tons Coal (thermal)


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 22, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 22, 2020
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
Form 10-K 2017
Other 2017
Press Release 2017
Form 10-K 2016
Form 10-K 2015
Subscription required - Subscription is required.

Aerial view:

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