Walmsley William
Operator of record for 6 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Walmsley William is the operator of record for 6 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 6 (100%) are plugged & abandoned. Its largest concentration is in Montana, with 6 wells (100% of its portfolio).
Wells operated
6
Active
0
Plugged
6
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Montana | 6 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Walmsley William operate?
Walmsley William's catalogued wells are spread across 1 state: Montana (6). Its 6 Montana wells are 0.0% of the 42,011 catalogued in that state — its largest share of any state. Counts cover only states whose registries WellCensus has ingested with operator names; wells in Nebraska and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Walmsley William’s wells are active, plugged or orphaned?
0% of Walmsley William's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Walmsley William operate?
By product class, 0 (0%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Hogeland 33-2 in Blaine, MT at 5,055 ft.
Notable wells operated by Walmsley William
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hogeland 33-2 | 25-005-21218 | Plugged & abandoned | Other type | Blaine, MT | Walmsley, William | 5,055 ft |
| H. Belden 18-15 | 25-005-21223 | Plugged & abandoned | Other type | Blaine, MT | Walmsley, William | 5,050 ft |
| Michealson 30-6 | 25-005-21217 | Plugged & abandoned | Other type | Blaine, MT | Walmsley, William | 5,040 ft |
| D-Bergren 23-1 | 25-005-21216 | Plugged & abandoned | Other type | Blaine, MT | Walmsley, William | 4,970 ft |
| Coulee 3-13 | 25-005-21219 | Plugged & abandoned | Other type | Blaine, MT | Walmsley, William | 4,960 ft |
| B.-Mcguire 35-2 | 25-005-21221 | Plugged & abandoned | Other type | Blaine, MT | Walmsley, William | 4,950 ft |
Deepest first where depth is published. See all 6 wells →
Frequently asked questions
How many wells does Walmsley William operate?
Walmsley William is the operator of record for 6 catalogued oil & gas wells, with the largest concentration in Montana (6). Only wells in states WellCensus has ingested are counted.
How many of Walmsley William's wells are still active?
0 of Walmsley William's catalogued wells are active; 6 are plugged & abandoned.
In which states does Walmsley William operate wells?
Walmsley William is the operator of record for wells in Montana (6).
Does Walmsley William operate mostly oil or gas wells?
0 of Walmsley William's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Walmsley William's deepest well?
Among wells with a published depth, Hogeland 33-2 in Blaine, MT is the deepest at 5,055 ft.
Where Walmsley William's wells are
About this data
Source: State oil & gas regulator registries (operator of record as filed, exact-normalized across states) plus the USGS United States Documented Orphaned Well Database (2026), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Walmsley William — well portfolio”, https://wellcensus.com/operators/walmsley-william-130703 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).