Barnsdall & Foster
Operator of record for 3 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Barnsdall & Foster is the operator of record for 3 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 3 (100%) are plugged & abandoned. Its largest concentration is in Montana, with 3 wells (100% of its portfolio).
Wells operated
3
Active
0
Plugged
3
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Montana | 3 |
Well mix
- Oil wells
- 1
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Barnsdall & Foster to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Barnsdall & Foster operate?
Barnsdall & Foster's catalogued wells are spread across 1 state: Montana (3). Its 3 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 Barnsdall & Foster’s wells are active, plugged or orphaned?
0% of Barnsdall & Foster'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 Barnsdall & Foster operate?
By product class, 1 (33%) are oil wells and 1 (33%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Biorn 2 in Stillwater, MT at 4,050 ft.
Notable wells operated by Barnsdall & Foster
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Biorn 2 | 25-095-05075 | Plugged & abandoned | Other type | Stillwater, MT | Barnsdall & Foster | 4,050 ft |
| Hepp Farm 1 | 25-095-05048 | Plugged & abandoned | Oil | Stillwater, MT | Barnsdall & Foster | 3,924 ft |
| Biorn 1 | 25-095-05074 | Plugged & abandoned | Gas | Stillwater, MT | Barnsdall & Foster | 1,150 ft |
Deepest first where depth is published. See all 3 wells →
Frequently asked questions
How many wells does Barnsdall & Foster operate?
Barnsdall & Foster is the operator of record for 3 catalogued oil & gas wells, with the largest concentration in Montana (3). Only wells in states WellCensus has ingested are counted.
How many of Barnsdall & Foster's wells are still active?
0 of Barnsdall & Foster's catalogued wells are active; 3 are plugged & abandoned.
In which states does Barnsdall & Foster operate wells?
Barnsdall & Foster is the operator of record for wells in Montana (3).
Does Barnsdall & Foster operate mostly oil or gas wells?
1 of Barnsdall & Foster's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Barnsdall & Foster's deepest well?
Among wells with a published depth, Biorn 2 in Stillwater, MT is the deepest at 4,050 ft.
Where Barnsdall & Foster'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, “Barnsdall & Foster — well portfolio”, https://wellcensus.com/operators/barnsdall-foster-129340 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).