Welch Brothers
Operator of record for 17 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Welch Brothers is the operator of record for 17 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 17 (100%) are plugged & abandoned. Its largest concentration is in Montana, with 17 wells (100% of its portfolio).
Wells operated
17
Active
0
Plugged
17
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Montana | 17 |
Well mix
- Oil wells
- 12
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Welch Brothers operate?
Welch Brothers's catalogued wells are spread across 1 state: Montana (17). Its 17 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 Welch Brothers’s wells are active, plugged or orphaned?
0% of Welch Brothers'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 Welch Brothers operate?
By product class, 12 (71%) 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 Dewald 1 in Toole, MT at 1,802 ft.
Notable wells operated by Welch Brothers
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Dewald 1 | 25-101-10956 | Plugged & abandoned | Other type | Toole, MT | Welch Brothers | 1,802 ft |
| Ward 1 | 25-101-05880 | Plugged & abandoned | Oil | Toole, MT | Welch Brothers | 1,767 ft |
| Ward 2 | 25-101-05853 | Plugged & abandoned | Oil | Toole, MT | Welch Brothers | 1,765 ft |
| Abell Govt. 5 | 25-101-11620 | Plugged & abandoned | Oil | Toole, MT | Welch Brothers | 1,734 ft |
| Lerum 2 | 25-101-10953 | Plugged & abandoned | Oil | Toole, MT | Welch Brothers | 1,651 ft |
| Lerum 2 | 25-101-10954 | Plugged & abandoned | Other type | Toole, MT | Welch Brothers | 1,642 ft |
| Govt. 2 | 25-101-11616 | Plugged & abandoned | Other type | Toole, MT | Welch Brothers | 1,565 ft |
| Abell Govt. 7 (-) | 25-101-11622 | Plugged & abandoned | Oil | Toole, MT | Welch Brothers | 1,550 ft |
| State 4(-) | 25-101-11114 | Plugged & abandoned | Other type | Toole, MT | Welch Brothers | 1,520 ft |
| State 6(-) | 25-101-11116 | Plugged & abandoned | Other type | Toole, MT | Welch Brothers | 1,520 ft |
| Abell Govt. 6 (-) | 25-101-11621 | Plugged & abandoned | Oil | Toole, MT | Welch Brothers | 1,520 ft |
| State 5(-) | 25-101-11115 | Plugged & abandoned | Oil | Toole, MT | Welch Brothers | 1,498 ft |
Deepest first where depth is published. See all 17 wells →
Frequently asked questions
How many wells does Welch Brothers operate?
Welch Brothers is the operator of record for 17 catalogued oil & gas wells, with the largest concentration in Montana (17). Only wells in states WellCensus has ingested are counted.
How many of Welch Brothers's wells are still active?
0 of Welch Brothers's catalogued wells are active; 17 are plugged & abandoned.
In which states does Welch Brothers operate wells?
Welch Brothers is the operator of record for wells in Montana (17).
Does Welch Brothers operate mostly oil or gas wells?
12 of Welch Brothers's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Welch Brothers's deepest well?
Among wells with a published depth, Dewald 1 in Toole, MT is the deepest at 1,802 ft.
Where Welch Brothers'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, “Welch Brothers — well portfolio”, https://wellcensus.com/operators/welch-brothers-129641 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).