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United States
Center Mine

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 Location:
50 km NW from Bismarck, North Dakota, United States

  Address:
2360 35th Ave SW
Center
North Dakota, United States
58530
WebsiteWeb
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  • Overview
  • Owners
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (thermal)
Mining Method
  • Truck & Shovel / Loader
  • Dragline


Owners & OPERATOR

Source:
CompanyInterestOwnership
BNI Coal Ltd. (operator) 100 % Direct
ALLETE, Inc. 100 % Indirect
BNI Energy, Inc., a wholly owned subsidiary of ALLETE, Inc. (NYSE-ALE), owns and operates BNI Coal, ?enter mine.

Deposit Type

  • Sedimentary


Summary:


Mining Methods

  • Truck & Shovel / Loader
  • Dragline


Summary:

In areas of thick overburden, a hydraulic excavator and a fleet of end dump trucks are used to remove part of the overburden prior to dragline operations. The excavator and truck overburden removal step was introduced into BNI’s mining process in 2012.

The primary overburden removal tool at the Center Mine is the dragline. These machines can remove overburden up to 120’ thick and place it in piles 140’ high. The buckets of these draglines are larger than a typical school bus. They are powered with electricity produced from the same lignite they uncover.


Crushing and Grinding


Processing


Summary:

After the lignite has been uncovered with the dragline, it must be broken into smaller pieces before it can be hauled to the power plant. This operation is done with bulldozers. The bulldozers at BNI are equipped with a large ripper shank built specifically for breaking coal into pieces small enough to be placed into BNI’s haul trucks.


Production:

CommodityProductUnits2019201820172016201520142013
Coal (thermal) ROM coal tons  ......  Subscription required
Coal (thermal) tons 4,256,8674,288,4044,296,3074,393,9863,975,6343,728,709
Subscription required - Subscription is required.

Operational Metrics:

Metrics2019
Raw coal annual capacity  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryTonnage Commodity
Proven & Probable 650 M tons Coal (thermal)

Financials:

Units201920182017201620152014
After-tax Income M USD  ......  Subscription required6.8  4.5   6.8   6.7   6.1  
Subscription required - Subscription is required


Heavy Mobile Equipment as of December 31, 2019:
HME TypeModelQuantityLeased or
Contractor
Dragline ....................... Subscription required 1 Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Oct 7, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Oct 7, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014
Subscription required 2013
Subscription required 2012
Subscription required 2011

Corporate Filings & Presentations:

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

Aerial view:

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