1991 - 1991 Amendment for Oil & Gas Leasing DEIS. File Size - 53.6MB. Pages - 336.

1991 - 1991 Amendment for Oil & Gas Leasing FEIS. File Size - 70MB. Pages - 417.

1991- 1991 Amendment for Oil & Gas Leasing & Development ROD. File Size - 3.6MB. Pages - 25.

1996 - Amendment for Black-Footed Ferret Reintroduction. File Size - 2.27MB. Pages - 29.

1997 - Amendment for Land Health Standards. File Size - 44.4 MB. Pages - 208.