API 25-101-21638Plugged & abandonedOther type well
Underdal 31-21
Other type well in Toole County, Montana · operated by Diamond Shamrock
Spud date
—
Drilling began
Completion
Nov 30, 1977
Plug date
—
Total depth
2,072 ft
As published by the state
Registry record
- API #
- 25-101-21638
- Status
- Plugged & abandoned(state code: P&A - Approved)
- Type
- Other type(Dry Hole)
- Field
- Fort Conrad
- County
- Toole
- Coordinates
- 48.43374, -111.86926
- State record #
- 2510121638
Operator
- Wells operated
- 115
- Active
- 0
- States
- AR, LA, MT, UT, WV, WY
- As filed
- Diamond Shamrock Corporation
Location & nearby wells
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Claim your operator profileNearby wells
| Well | API # | Status | Type | Operator |
|---|---|---|---|---|
| State "D" 1d | 25-073-21541 | Plugged & abandoned | Gas | Equitable Resources Energy Co, Western Region |
| Kendal 1 | 25-073-05471 | Plugged & abandoned | Other type | Hi-Land Vandael |
| A.-Van Daele #1 | 25-073-21240 | Plugged & abandoned | Gas | Ayers, Milan R. |
| Alcala 1 | 25-073-21206 | Plugged & abandoned | Other type | Ayers, Milan R. |
| Sprague 1-32R | 25-073-21399 | Plugged & abandoned | Gas | Ballard Petroleum Holdings LLC |
| Sprague 1-32 | 25-073-07101 | Plugged & abandoned | Other type | Equitable Resources Energy Co, Western Region |
Dataset updated . Source: Montana oil & gas regulator registry + the USGS documented-orphaned-wells inventory.