U.S. Energy Information Administration logo
Skip to sub-navigation
Skip to page content

Uranium Marketing Annual Report

Release Date: Next Release Date:
Table 22. Inventories of natural and enriched uranium by material type as of end of year, 2016–2020
thousand pounds U3O8 equivalent
  Inventories at the end of the year
Type of uranium inventory owned by 2016 2017 2018 2019 P2020
Owners and operators of U.S. civilian nuclear power reactors inventories 127,964 123,850 111,174 113,146 107,157
Uranium concentrate (U3O8) 20,790 20,612 19,270 24,350 21,896
Natural UF6 53,602 50,615 43,312 40,375 37,806
Enriched UF6 43,743 43,451 40,107 36,608 40,451
Fabricated fuel (not inserted into a reactor) 9,829 9,173 8,485 11,813 7,004
U.S. supplier inventories 16,667 17,818 19,345 17,517 15,992
Uranium concentrate (U3O8) 7,185 7,174 7,754 7,435 10,776
Natural UF6 W 4,364 W W W
Enriched UF6 W 6,280 W W W
Fabricated fuel (not inserted into a reactor) 0 0 0 0 0
Total commercial inventories 144,631 141,668 130,519 130,662 123,149
P = Preliminary data. Final 2018 inventory data reported in the 2020 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 (2016–2020)