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Uranium Marketing Annual Report

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Table 22. Inventories of natural and enriched uranium by material type as of end of year, 2017–2021
thousand pounds U3O8 equivalent
  Inventories at the end of the year
Type of uranium inventory owned by 2017 2018 2019 2020 P2021
Owners and operators of U.S. civilian nuclear power reactors inventories 123,850 111,174 113,146 106,863 108,503
Uranium concentrate (U3O8) 20,612 19,270 24,350 21,868 19,726
Natural UF6 50,615 43,312 40,375 37,806 36,400
Enriched UF6 43,451 40,107 36,608 40,712 43,195
Fabricated fuel (not inserted into a reactor) 9,173 8,485 11,813 6,477 9,182
U.S. supplier inventories 17,818 19,345 17,517 24,158 33,155
Uranium concentrate (U3O8) 7,174 7,754 7,435 17,713 28,465
Natural UF6 4,364 W W W W
Enriched UF6 6,280 W W W W
Fabricated fuel (not inserted into a reactor) 0 0 0 0 0
Total commercial inventories 141,668 130,519 130,662 131,020 141,658
P = Preliminary data. Final 2020 inventory data reported in the 2021 survey.
W = Data withheld to avoid disclosure of individual company data.
Note: Totals may not equal sum of components because of independent rounding.
Source: U.S. Energy Information Administration, Form EIA-858, Uranium Marketing Annual Survey (2017–2021)