Table 6.4. Stocks of Coal by Coal Rank: Electric Power Sector, 2007 - 2017

  Electric Power Sector
Period Bituminous Coal Subbituminous Coal Lignite Coal Total
End of Year Stocks
2007 63,964 82,692 4,565 151,221
2008 65,818 91,214 4,556 161,589
2009 91,922 92,448 5,097 189,467
2010 81,108 86,915 6,894 174,917
2011 82,056 85,151 5,179 172,387
2012 86,437 93,833 4,846 185,116
2013 73,113 69,720 5,051 147,884
2014 72,771 72,552 6,225 151,548
2015 82,004 108,614 4,931 195,548
2016 67,241 90,376 4,393 162,009
2017 56,140 77,875 3,672 137,687
Year 2015, End of Month Stocks
January 70,423 78,424 5,542 154,390
February 64,396 79,411 5,264 149,071
March 65,421 84,013 4,912 154,347
April 70,985 90,919 5,159 167,063
May 74,195 93,538 5,077 172,809
June 72,921 88,835 4,681 166,437
July 68,197 84,988 4,753 157,938
August 67,777 83,691 4,484 155,952
September 70,365 87,185 4,559 162,109
October 76,243 94,720 4,626 175,588
November 80,254 103,602 4,738 188,595
December 82,004 108,614 4,931 195,548
Year 2016, End of Month Stocks
January 76,919 105,641 4,643 187,203
February 76,373 106,153 4,537 187,064
March 79,664 107,076 4,813 191,553
April 81,390 106,720 5,075 193,185
May 82,185 105,068 5,164 192,417
June 78,216 98,822 5,048 182,086
July 71,287 92,104 4,727 168,119
August 67,462 87,040 4,406 158,908
September 65,962 86,411 4,194 156,567
October 67,250 89,666 4,016 160,932
November 70,537 95,428 4,313 170,277
December 67,241 90,376 4,393 162,009
Year 2017, End of Month Stocks
January 65,797 86,082 4,335 156,214
February 67,752 88,326 4,424 160,502
March 67,783 89,381 4,651 161,815
April 68,195 90,736 5,005 163,937
May 68,333 89,005 5,204 162,542
June 66,591 86,722 4,701 158,014
July 60,766 80,765 4,281 145,811
August 59,208 77,758 4,238 141,204
September 58,453 77,173 3,945 139,571
October 59,122 78,821 3,519 141,463
November 59,427 79,916 4,081 143,424
December 56,140 77,875 3,672 137,687

Notes: See Glossary for definitions.
Values are final. See Technical Notes for a discussion of the sample design for the Form EIA-923.
and predecessor forms. Totals may not equal sum of components because of independent rounding.
Sources: U.S. Energy Information Administration, Form EIA-906, Power Plant Report; U.S. Energy Information Administration, Form EIA-920 Combined Heat and Power Plant Report, and predecessor forms. Beginning with 2008 data, the Form EIA-923, Power Plant Operations Report, replaced the following:
Form EIA-906, Power Plant Report; Form EIA-920, Combined Heat and Power Plant Report; Form EIA-423, Monthly Cost and Quality of Fuels for Electric Plants Report;
and Federal Energy Regulatory Commission, FERC Form 423, Monthly Report of Cost and Quality of Fuels for Electric Plants.