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Coal: Research and Development to Support National Energy Policy (2007)
Board on Earth Sciences and Resources (BESR)

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Coal Research and Development: to Support National Energy Policy

Appendix D
Data Tables: U.S. and World Coal Reserves

The most widely referenced data tables that report the coal reserves of the United States and the rest of the world are presented below. The data reported for the United States are the Demonstrated Reserve Base (DRB) and the Estimated Recoverable Reserves (ERR) (see Table D.1); these are reported annually by the Energy Information Administration (EIA) and are described in Box 3.1.

The most recent World Energy Council (WEC) compilation of worldwide coal reserves from 75 countries—the twentieth edition of Survey of Energy Resources—was published in 2004 (see Table D.2). The WEC provides the following definitions to the nation member committees, which then provide the data that are the bases for Table D.2 (WEC, 2004):

  • Proved amount in place is the resource remaining in known deposits that has been carefully measured and assessed as exploitable1 under present and expected local economic conditions with existing available technology; and

  • Proved recoverable reserves are the tonnage within the proved amount in place category that can be recovered in the future under present and expected local economic conditions with existing available technology.

The WEC must rely on data submitted by each country, and “it is well recognized that each country tends to have its own notion of what constitutes resources and reserves” (WEC, 2004, p. xi.).

1

Equivalent to “minable”; wording is from WEC (2004).
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Coal Research and Development: to Support National Energy Policy Appendix D Data Tables: U.S. and World Coal Reserves The most widely referenced data tables that report the coal reserves of the United States and the rest of the world are presented below. The data reported for the United States are the Demonstrated Reserve Base (DRB) and the Estimated Recoverable Reserves (ERR) (see Table D.1); these are reported annually by the Energy Information Administration (EIA) and are described in Box 3.1. The most recent World Energy Council (WEC) compilation of worldwide coal reserves from 75 countries—the twentieth edition of Survey of Energy Resources—was published in 2004 (see Table D.2). The WEC provides the following definitions to the nation member committees, which then provide the data that are the bases for Table D.2 (WEC, 2004): Proved amount in place is the resource remaining in known deposits that has been carefully measured and assessed as exploitable1 under present and expected local economic conditions with existing available technology; and Proved recoverable reserves are the tonnage within the proved amount in place category that can be recovered in the future under present and expected local economic conditions with existing available technology. The WEC must rely on data submitted by each country, and “it is well recognized that each country tends to have its own notion of what constitutes resources and reserves” (WEC, 2004, p. xi.). 1 Equivalent to “minable”; wording is from WEC (2004).

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Coal Research and Development: to Support National Energy Policy TABLE D.1 U.S. Coal Reserve Data by State for 2005, ERR and DRB by Mining Method for 2005 (million short tons)   Underground Minable Coal Surface Minable Coal Total State ERR DRB ERR DRB ERR DRB Alabama 508 1,007 2,278 3,198 2,785 4,205 Alaska 2,335 5,423 499 687 2,834 6,110 Arizona –– — — — NA NA Arkansas 127 272 101 144 228 417 Colorado 6,015 11,461 3,747 4,762 9,761 16,223 Georgia 1 2 1 2 2 4 Idaho 2 160 — — 2 160 Illinois 27,927 87,919 10,073 16,550 38,000 104,469 Indiana 3,620 8,741 434 742 4,054 9,483 Iowa 807 1,732 320 457 1,127 2,189 Kansas — — 681 972 681 972 Kentucky total 7,411 17,055 7,483 12,965 14,894 30,020 Eastern 658 1,178 5,214 9,337 5,872 10,516 Western 6,753 15,877 2,269 3,628 9,022 19,504 Louisiana — — 312 422 312 422 Maryland 317 578 44 65 361 643 Michigan 55 123 3 5 59 128 Mississippi — — — — NA NA Missouri 689 1,479 3,157 4,510 3,847 5,989 Montana 35,922 70,958 39,021 48,272 74,944 119,230 New Mexico 2,801 6,156 4,188 5,975 6,988 12,131 North Carolina 5 11 — — 5 11 North Dakota — — 6,906 9,053 6,906 9,053 Ohio 7,719 17,546 3,767 5,754 11,486 23,300 Oklahoma 574 1,231 226 323 800 1,554 Oregon 6 15 2 3 9 17 Pennsylvania, total 10,710 23,221 1,044 4,251 11,754 27,472 Anthracite 340 3,844 420 3,355 760 7,198 Bituminous 10,370 19,377 625 896 10,994 20,274 South Dakota — — 277 366 277 366 Tennessee 280 510 179 264 459 774 Texas — — 9,534 12,385 9,534 12,385 Utah 2,514 5,128 212 268 2,726 5,396 Virginia 2,949 1,130 171 562 3,121 1,693 Washington 1,030 1,332 6 8 1,036 1,340 West Virginia 15,576 29,184 2,382 3,775 17,958 32,960 Wyoming 22,950 42,500 17,657 21,319 40,607 63,819 U.S. Total 152,850 334,876 114,705 158,059 267,554 492,935 NOTES: NA = This estimated value is not available due to insufficient or inadequate data or model performance. The DRB and ERR as of January 1, 2006, incorporate revisions made to eliminate a discrepancy between data expressed by coal rank versus data allocated to British thermal unit (Btu) ranges. The minor differences resulted from the fact that coal rank classifications are based in part, but not entirely,

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Coal Research and Development: to Support National Energy Policy on Btu content. EIA’s data—originally allocated to Btu ranges for coal supply and demand modeling—had been used to approximate the ERR by coal rank in the early 1990s. Over time, the small differences between resources and reserves by coal rank and by Btu ranges became significant due to cumulative depletion adjustments. The January 1, 2006, data include internal additions to coal tonnages by Btu ranges to identify the coal ranks where more than one rank occurs in borderline resource areas and to unify the tonnage totals. Recoverable coal reserves at producing mines represent the quantity of coal that can be recovered (i.e., mined) from existing coal reserves at reporting mines. EIA’s ERR include the coal in the DRB considered recoverable after excluding coal estimated to be unavailable due to land use restrictions or currently economically unattractive for mining after applying assumed mining recovery rates. The effective date for the DRB, as customarily worded, is “Remaining as of January 1, 2006.” These data are contemporaneous with the RRPM, customarily presented as of the end of the past year’s mining—in this case, December 31, 2005. Current or recent mining in a state does not imply those data for a DRB and ERR. The DRB includes publicly available data on coal mapped to measured and indicated degrees of accuracy and found at depths and in coalbed thicknesses considered technologically minable at the time of determinations. All reserve expressions exclude silt, culm, refuse bank, slurry dam, and dredge operations. RRPM excludes mines producing less than 10,000 short tons, which are not required to provide reserves data. SOURCES: EIA Form EIA-7A, Coal Production Report; MSHA, Form 7000-2, Quarterly Mine Employment and Coal Production Report; and EIA estimates.

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Coal Research and Development: to Support National Energy Policy TABLE D.2 Proved International Recoverable Coal Reserves at End of 2002 (million tonnes) Country Bituminous (including anthracite) Subbituminous Lignite Total Algeria 40     40 Botswana 40     40 Central African Republic     3 3 Congo (Democratic Republic) 88     88 Egypt (Arab Republic) 21     21 Malawi   2   2 Morocco Na     N Mozambique 212     212 Niger 70     70 Nigeria 21 169   190 South Africa 48,750     48,750 Swaziland 208     208 Tanzania 200     200 Zambia 10     10 Zimbabwe 502     502 Total Africa 50,162 171 3 50,336 Canada 3,471 871 2,236 6,578 Greenland   183   183 Mexico 860 300 51 1,211 United States of America 111,338 101,978 33,327 246,643 Total North America 115,669 103,332 35,614 254,615 Argentina   424   424 Bolivia 1     1 Brazil   10,113   10,113 Chile 31 1,150   1,181 Colombia 6,230 381   6,611 Ecuador       24 Peru 960   24 1,060 Venezuela 479   100 479 Total South America 7,701 12,068 124 19,893 Afghanistan 66     66 China 62,200 33,700 18,600 114,500 India 90,085   2,360 92,445 Indonesia 740 1,322 2,906 4,968 Japan 259     359 Kazakhstan 28,151   3,128 31,279 Korea (DPR) 300 300   600 Korea (Republic)   80   80 Kyrgyzstan     812 812 Malaysia 4     4 Mongoliab         Myanmar 2     2 Nepal   1   1 Pakistan   60 2,990 3,050

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Coal Research and Development: to Support National Energy Policy Country Bituminous (including anthracite) Subbituminous Lignite Total Philippines 22 144 70 236 Taiwan, China 1     1 Thailand     1,354 1,354 Turkey 278 761 3,147 4,186 Uzbekistan 1,000   3,000 4,000 Vietnam 150     150 Total Asia 183,358 36,368 38,367 258,093 Albania     794 794 Austria     20 20 Bulgaria 4 91 2,092 2,187 Croatia 6   33 39 Czech Republic 2,094 3,242 216 5,552 France 15     15 Germany 183   6,556 6,739 Greece     3,900 3,900 Hungary 198 199 2,960 3,357 Ireland 14     14 Italy   27 7 34 Netherlands 497     497 Norway   5   5 Poland 14,000     14,000 Portugal 3   33 36 Romania 22 3 469 494 Russian Federation 49,088 94,472 10,450 157,010 Serbia and Montenegro 9 656 15,926 16,591 Slovakia N   172 172 Slovenia   40 235 275 Spain 200 300 30 530 Sweden   1   1 Ukraine 16,274 15,946 1,933 34,153 United Kingdom 220     220 Total Europe 82,827 117,982 45,826 246,653 Iran (Islamic Republic) 419     419 Total Middle East 419     419 Australia 38,600 2,200 37,700 78,500 New Caledonia 2     2 New Zealand 33 205 333 571 Total Oceania 38,635 2,405 38,033 79,073 Total World 478,771 272,326 157,967 909,064 aN represents negligible amounts. bA quantification of proved recoverable reserves for Mongolia is not available. SOURCE: WEC (2004).