[rory096]

Note that the reserve is currently at 87.4% capacity, with 635 million barrels in inventory (250.3m sweet, 384.7m sour).[0]

Plans to expand capacity to a billion barrels with the addition of a new site in Richton, MS were cancelled in 2010.[1]

[0] https://www.spr.doe.gov/dir/dir.html

[1] https://web.archive.org/web/20140710034505/http://energy.gov...

[systemBuilder]

That's only a 31d supply. ..