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Diamond Shamrock Corporation: wells in Montana

Also operates in LA (24), AR (56), TX (3), WY (10), UT (19), FL (1).

Where they operate

CountyActiveWells
Richland04
Toole03
Roosevelt02
Pondera02
Garfield01
Fallon01
Carter01

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusType
BENJAMIN 14-17 25-101-21642Plugged Dry hole
Hill Fee 21-12 25-083-21300Plugged Dry hole
LAVERN 21-27 25-085-21413Plugged Dry hole
LUCKY JNES 1-18 25-025-21271Plugged Dry hole
P. FIZER 1-7 25-085-21060Plugged Dry hole
Roedeske Fee 34-1 25-083-21367Plugged Dry hole
STATE 41-16 25-073-21650Plugged Dry hole
STATE 42-36 25-101-21636Plugged Dry hole
Sjostrom 33-17 25-083-21709Plugged Dry hole
State 13-16 25-083-21444Plugged Dry hole
UNDERDAHL<>12-4 25-073-21284Plugged Dry hole
UNDERDAL 31-21 25-101-21638Plugged Dry hole
USA #1-26 25-033-21046Plugged Dry hole
Zupanik 1-6 25-011-21322Plugged Dry hole

Operator names are shown as each state records them. Data as of 2026-10-19.