Wyodak Mine

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Wyodak
Location
Wyodak is located in Wyoming
Wyodak
Wyodak
Location in Wyoming
State Wyoming
Country United States
Coordinates 44°18′25″N 105°23′13″W / 44.30694°N 105.38694°W / 44.30694; -105.38694Coordinates: 44°18′25″N 105°23′13″W / 44.30694°N 105.38694°W / 44.30694; -105.38694
Production
Products Coal
History
Opened 1923
Owner
Company Black Hills Corporation
Website http://www.blackhillscorp.com/
Year of acquisition 1956

The Wyodak mine is a coal mine located 6 miles east of Gillette, Wyoming in the United States in the coal-rich Powder River Basin. The operation is an open pit mine that utilizes a truck and shovel mining method to produce a low-sulfur, sub-bituminous coal that is used for domestic energy generation. The mine ships its coal to the adjacent Wyodak power plant and to other customers via railroad. The mine is operated by Wyodak Resources Development, a subsidiary of the Black Hills Corporation.[1]

As of 2009, Wyodak had reserves of 294mm tons of sub-bituminous coal and a maximum permitted production capacity of 10mm tons per year. Typical annual production has been in the 5-6mm ton range for the last several years though. In 2008, the mine produced just over 6.0 million short tons of coal, making it the 30th-largest producer of coal in the United States.[2]

The average quality of the coal produced from the Wyodak Mine is 8,050 BTU/lb, 0.40% Sulfur, 6.0% Ash, and 0.94% Sodium (of the ash). Train loading operations at the mine are done by a flood loading system that is coupled to a "weigh-in-motion" track scale system. Silo capacity at the mine's rail loop, which can accommodate a single unit train, is 24,000 tons.[3]

History[edit]

Mining operations at the mine site first began around 1918 with the establishment of the Peerless Mine. The Peerless Mine was an underground room and pillar operation that mined coal near the outcrop of the Wyodak seam. Though the operation went out of business in 1925, it left behind underground workings which were uncovered and mined through by the Wyodak mine in the 1950s.[1][4]

The modern Wyodak mine was established in 1923 to provide coal for power plants that supplied energy to the Homestake Mine (South Dakota) for its mining and milling operations. In 1956, the Black Hills Corporation purchased the mine from the Homestake Mining Company by exercising an option that was negotiated during its purchase of the Wyodak power plant in 1954.[5]

It is believed that Wyodak is the oldest, continually operated surface coal mine in the United States.[6]

Production[edit]

[7][8]

Year Coal Production Employees
2011 5,691,756 120
2010 5,930,614 116
2009 6,016,063 121
2008 6,017,311 116
2007 5,049,232 109
2006 4,698,473 66
2005 4,701,625 68
2004 4,780,104 59
2003 4,812,346 56
2002 4,052,374 55
2001 3,518,162 53
2000 3,050,325 43
1999 3,179,585 43
1998 3,280,157 43
1997 3,250,969 46
1996 3,198,544 47
1995 2,984,000 51
1994 2,795,942 52
1993 3,027,356 57
1992 2,257,551 58
1991 2,741,809 57
1990 2,907,639 63
1989 2,349,135 70
1988 2,709,494 71
1987 2,976,398 76
1986 2,584,856 77
1985 2,898,482 72
1984 2,443,831 69

References[edit]

  1. ^ a b "Wyodak Resources". Wyodak Resources. Retrieved 2010-07-03. 
  2. ^ "Major U.S. Coal Mines, 2008". Energy Information Administration of the Department of Energy. September 2009. Retrieved 2010-07-03. 
  3. ^ "Mine Guide" (PDF). BNSF website. BNSF. Retrieved 2010-07-03. 
  4. ^ "Gillette History". Campbell County Government. 2009-07-20. Retrieved 2010-07-03. 
  5. ^ "Decade of the 50's". Black Hills Corporation. Retrieved 2010-07-03. 
  6. ^ "Case Study-Wyodak Resources". Komatsu North America. 2009-07-20. Retrieved 2012-08-28. 
  7. ^ "Wyodak Data". Wyoming Mining Association. May 4, 2010. Retrieved 2010-07-03. 
  8. ^ "MSHA Mine ID 4800083". Retrieved 2012-08-28.